JP2009231734A - Surface mounting apparatus and protection cover for surface mounting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a surface mounting apparatus ensuring high safety without enlarging the size of a body of the mounting apparatus; and to provide a protection cover for the surface mounting apparatus. <P>SOLUTION: The surface mounting apparatus 1 includes a plurality of opening portions 14 capable of detachably attaching batch exchange carriages 20 to which component feeders 21 can be set, and mounting portions 11, 12 and 62 for transferring electronic components from the component feeders 21 and mounting them on substrates. The surface mounting apparatus 1 further includes holders 16, 17 capable of holding protection covers 30 for covering the opening portions 14 to the opening portions 14, and a controller 60 for keeping the operation of the mounting portions 11, 12, and 62 in a resting state when there are open portions 14 to which the batch exchange carrier 20 or the protection cover 30 is not mounted, and releasing the resting state of the mounting portions 11, 12, and 62 when all the opening portions 14 have the batch exchange carriers 20 or the protection covers 30 mounted therein. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a surface mounter for mounting electronic components on a substrate, and a protective cover for the surface mounter.

  Generally, a surface mounter that mounts electronic components on a substrate includes a component supply unit to which the electronic components are supplied, and a head unit that can pick up the electronic components from the component supply unit and mount them on the substrate (for example, a patent). Reference 1). The component supply units are provided at a plurality of locations on the mounting machine main body, and a batch exchanging carriage in which a plurality of component supply devices are set is attached to each component supply unit.

In this surface mounter, the batch exchanging carriage may be removed for setting up the component mounting apparatus, and in such a case, the component supply unit is opened. Further, for example, when there are few types of electronic components to be mounted on the board and it is not necessary to mount the collective exchange cart on all the component supply units, the component supply unit on which the collective exchanging cart is not installed is in an open state.
All openings are provided with area sensors, and when the area sensor detects the entry of foreign matter into the openings, the mounting operation of the mounting machine main body is urgently stopped.
JP 2001-144499 A

In surface mounters equipped with area sensors as described above, high safety is ensured by securing a predetermined space behind the area sensor (between the area sensor and the mounting work area). Yes. However, providing such a space leads to an increase in the size of the mounting machine body, and thus further studies have been desired.
The present invention has been completed based on the above circumstances, and a surface mounter capable of ensuring high safety without causing an increase in the size of the mounter body and protection for the surface mounter The purpose is to provide a cover.

  A surface mounter according to the present invention includes a plurality of openings in which a collective exchanging carriage on which a component supply device can be set is detachable, and a mounting portion that transfers the electronic component from the component supply device and mounts it on a substrate. In the surface mounter, when there is a holding portion that can hold the protective cover that covers the opening portion with respect to the opening portion, and the opening portion to which the collective exchanging cart or the protective cover is not attached, A controller that holds the operation of the mounting unit in a stopped state, and releases the stopped state of the mounting unit when the collective exchanging cart or the protective cover is attached to all the openings.

  According to such a configuration, it is possible to prevent the mounting portion from being mounted without attaching the collective exchange carriage or the protective cover to the opening. Moreover, since the opening is physically covered by the protective cover, high safety can be ensured without securing a predetermined space between the protective cover and the mounting work area. Therefore, according to the structure of this invention, high safety | security can be ensured, without causing the enlargement of a mounting machine main body.

  When the protective cover is attached to a regular position with respect to the opening, the protective cover includes a main body side connector that is electrically connected to a cover side connector provided in the protective cover, and the control unit includes the collective change cart When the main body side connector is not connected to the cover side connector, the operation of the mounting portion is held in a stopped state, and the main body side connector is connected to the cover side connector. Sometimes, the stop state may be canceled.

  Moreover, the said holding | maintenance part is good also as what also serves as the holding | maintenance part which can hold | maintain the said collective change cart with respect to the said opening part. Thereby, since it is not necessary to provide separately the holding | maintenance part for protective covers, and the holding | maintenance part for collective exchange trolleys, it can be set as a compact structure.

The holding unit may include a lock unit that locks the protective cover in a mounted state.
The lock means may also serve as a lock means for locking the collective change cart in a mounted state. Thereby, it can be set as a compact structure compared with the case where the locking means for protective covers and the locking means for collective exchange carts are provided separately.

The main body-side connector electrically connects to a cart-side connector provided in the batch exchanging cart when the collective exchanging cart is mounted at a normal position with respect to the opening, and the control unit includes: When there is at least one main body side connector that is not connected to the cover side connector or the cart side connector, the operation of the mounting portion is held in a stopped state, and all the main body side connectors are connected to the cover side connector or The stop state may be canceled when connected to the cart-side connector.
According to such a configuration, it is possible to prevent the mounting portion from being operated while the collective exchanging carriage and the protective cover are in a state of being deviated from the normal positions. Further, the main body side connector can be made more compact than the case where the main body side connector is provided separately for the cover side connector and for the cart side connector.

  The surface mounter according to the present invention is a surface mounter including a plurality of openings from which a component supply device can be attached and detached, and a mounting unit that transfers electronic components from the component supply device and mounts them on a substrate. If there is a holding part that can hold the protective cover that covers the opening with respect to the opening part and the opening part to which the component supply device or the protective cover is not attached, the operation of the mounting part is stopped. And a control unit that releases the stopped state of the mounting unit when the component supply device or the protective cover is attached to all the openings.

  According to such a configuration, it is possible to prevent the mounting portion from being mounted without attaching the protective cover or the component supply device to the opening. Moreover, since the opening is physically covered by the protective cover, high safety can be ensured without securing a predetermined space between the protective cover and the mounting work area. Therefore, according to the structure of this invention, high safety | security can be ensured, without causing the enlargement of a mounting machine main body.

When the protective cover is attached to a regular position with respect to the opening, the protective cover includes a main body side connector that is electrically connected to a cover side connector provided in the protective cover, and the control unit includes the component supply device When the main body side connector is not connected to the cover side connector, the operation of the mounting portion is held in a stopped state, and the main body side connector is connected to the cover side connector. Sometimes, the stop state may be canceled.
According to such a configuration, it is possible to prevent the mounting portion from being operated while the position of the protective cover is shifted from the normal position.

  The holding unit may include a lock unit that locks the protective cover in a mounted state. Thereby, since a protective cover is hold | maintained, without removing, high safety | security can be ensured.

  A protective cover for a surface mounter according to the present invention is a protective cover for a surface mounter that is attached to an opening of a mounter body to which a component supply device or a collective change cart that can be set by the component supply device is detachable. And a cover main body that covers the opening and an engagement portion that engages with a holding portion of the mounting machine main body, and the engagement main body engages with the holding portion so that the cover main body is It is characterized by being held in a state of covering the opening.

The engaging portion is an arm that protrudes from the cover body in the mounting direction to the opening, and the arm may be foldable. Thereby, when not using a protective cover, an engaging part (arm) can be folded and it can be made into a compact shape. Therefore, it is possible to save space for storing the protective cover when not in use.
It may be provided with at least a pair of the arms and a connecting member that is stretched and connected in the facing direction of the pair of arms.

  ADVANTAGE OF THE INVENTION According to this invention, the protective cover for surface mounters and surface mounters which can ensure high safety | security without incurring the enlargement of a mounting machine main body can be provided.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
The surface mounter 1 according to the present embodiment includes a mounter body 10 for mounting electronic components on a substrate (not shown) and a component feeder 21 (corresponding to the component supply apparatus of the present invention). A collective exchanging cart 20 that is attached to and detached from the main body 10 is provided. Hereinafter, in each component member, the upper side in FIG. 1 will be described as the upper side, and the lower side will be described as the lower side.

  The mounting machine body 10 includes a conveyor 11 (conveying means) that conveys the substrate of FIG. 14, a head unit 12 (transfer means) that can pick up electronic components from the batch exchanging carriage 20 and mount them on the substrate. . The head unit 12 moves in a substantially horizontal direction between the upper side of the substrate conveyed by the conveyor 11 and the upper side of the component supply position to which the electronic component is supplied, and moves the suction nozzle (not shown) up and down to move the electronic component. Pickup and mounting of electronic components on the board. In addition, the conveyor 11 and the head unit 12 comprise the mounting part of this invention.

  Opening / closing covers 13 are provided on both sides of the mounting machine main body 10 (both sides in the substrate transport direction, ie, the left front side and the right back side in FIG. 1). The opening / closing cover 13 covers most of the moving range of the head unit 12 except for the opening 14 where the collective exchanging carriage 20 is attached and detached. The opening / closing cover 13 is attached so as to be rotatable between a closed position that covers the movement range of the head unit 12 and an open position that opens the movement range of the head unit 12. When performing maintenance work or the like of the mounting machine body 10, the opening / closing cover 13 is rotated to the open position.

  The openings 14 are provided at a total of four locations, and are arranged side by side at two locations on both sides of the mounting machine body 10. In the present embodiment, a maximum of four collective exchange carts 20 can be attached to one surface mounter 1.

  The batch exchanging carriage 20 has a feeder mounting portion 20A to which a plurality of component feeders 21 can be attached, and is mounted on the mounting machine main body 10 so that the feeder mounting portion 20A is fitted into the opening 14.

  A caster 22 is provided at the lower end of the collective exchanging carriage 20, and can be moved freely. Specifically, the collective exchanging cart 20 includes a cart portion 20C having a caster 22 attached to the lower surface thereof, and a pair of column portions 20B that rise upward from the cart portion 20C, and a feeder is provided at the upper end of the column portion 20B. A mounting portion 20A is attached.

  The feeder mounting portion 20 </ b> A is connected to a pair of carriage arms 23 that can be inserted into the arm insertion path 15 of the mounting machine body 10. The carriage arm 23 is made of iron and has a shape that protrudes in a substantially right angle direction (the mounting / detaching direction of the collective exchange carriage 20 with respect to the mounting machine body 10) with respect to each support column 20B, and is attached to each support column 20B so as to be movable up and down. It has been. The pair of trolley arms 23 has a substantially identical shape as a whole, and has an elongated plate shape with a substantially uniform width in the vertical direction.

  The feeder mounting portion 20A has a feeder support plate 24 on which a plurality of component feeders 21 are set in parallel. The feeder support plate 24 is stretched over and fixed to the tip ends of the pair of carriage arms 23. The plurality of component feeders 21 are set and fixed on the upper surface of the feeder support plate 24. When the component feeder 21 is set on the feeder support plate 24, the component feeder 21 is in a state of being electrically connected to a cart side connector 27 described later. Note that the component feeder 21 is a tape in which electronic components are mounted at regular intervals and wound around a tape reel (not shown). Are sequentially supplied.

  Two trolley-side convex portions 25 are provided in each of the pair of trolley arms 23. As shown in FIG. 2, each cart-side convex portion 25 has a shape protruding upward from the top surface of the cart arm 23 and can be fitted to two lock portions 66 described later. The two trolley side convex portions 25 are arranged at a predetermined interval in the longitudinal direction of the trolley arm 23, and the trolley arm 23 is located at a normal depth position with respect to the arm insertion path 15 (the tip of the trolley arm 23 is inserted into the arm). When it is inserted up to the back end of the path 15, it is arranged at a position just below the corresponding lock portion 66 (a position where each lock portion 66 and each carriage-side convex portion 25 oppose each other in the fitting direction). .

  In addition, a metal plate 26 is attached to the tip of one of the pair of carriage arms 23 (in this embodiment, the right carriage arm 23R in the insertion direction with respect to the arm insertion path 15). The plate 26 is provided along the front end surface of the right cart arm 23R.

  Further, when the carriage arm 23 is attached to the right carriage arm 23R at a regular position with respect to the arm insertion path 15, that is, the component feeder 21 (feeder placement portion 20A) is regular with respect to the mounting machine body 10. A truck-side connector 27 is provided which is electrically connected to a main body-side connector 67 described later when attached to the position. The trolley side connector 27 is provided on the upper surface of the right side trolley arm 23 </ b> R, and is fitted to the main body side connector 67 from below.

The surface mounter 1 includes a protective cover 30 attached to the opening 14.
The protective cover 30 has a cover body 31 that covers the opening 14. The cover main body 31 is made of an iron plate and has a substantially rectangular plate shape that is slightly longer in the width direction (the direction in which the openings 14 are parallel). Although not shown, the cover main body 31 has a number of long and thin holes, and the inside of the cover body 31 can be visually recognized while preventing the foreign matter from the outside with the protective cover 30 attached to the opening 14.

  The cover body 31 is reinforced by the frame portion 32. The frame portion 32 is provided over the entire circumference of the periphery of the cover body 31. Specifically, a pair of upper and lower horizontal frames 32H disposed along the upper edge and the lower edge of the cover body 31, the left edge of the cover body 31 and A pair of left and right vertical frames 32T arranged along the right edge (see FIG. 4).

  The horizontal frame 32H has a shape in which a thin plate elongated in the width direction of the cover main body 31 is bent at a substantially right angle at a substantially central position in the short side direction (height direction), and approximately half is attached to the plate surface of the cover main body 31. The half is provided so as to protrude from the cover body 31.

  The vertical frame 32T has a shape in which a thin plate elongated in the height direction of the cover body 31 is bent at substantially right angles at both ends in the longitudinal direction (height direction). Most of the vertical frame 32T (longitudinal center) is attached to the plate surface of the cover body 31, and both ends in the longitudinal direction are connected to portions of the horizontal frame 32H protruding from the cover body 31. . The pair of left and right vertical frames 32T and the pair of upper and lower horizontal frames 32H have the same shape.

  The protective cover 30 includes a pair of cover arms 33 (corresponding to the arms of the present invention) that are inserted into the arm insertion path 15 provided in the mounting machine body 10. The pair of cover arms 33 are provided at both ends of the cover body 31 in the width direction (longitudinal direction). The cover arm 33 is made of a metal material and has a substantially plate shape that is substantially constant in width in the vertical direction and elongated in the front-rear direction. Both cover arms 33R and 33L have substantially the same cross-sectional shape, and the vertical height thereof is substantially the same as the vertical height of both cart arms 23 of the collective exchanging cart 20.

  The pair of cover arms 33 has a length dimension that is smaller than the width dimension (longitudinal dimension) of the cover body 31 and larger than approximately half the width dimension of the cover body 31. The length dimension of the right cover arm 33R of the pair of cover arms 33 is shorter than the length dimension of the left cover arm 33L by the thickness of the left cover arm 33L (see FIG. 5). The right cover arm 33R is attached to a position farther from the cover body 31 than the left cover arm 33L by an amount shorter than the left cover arm 33L.

  Both the cover arms 33R and 33L are connected to the cover main body 31 through hinges 34 at one end in the length direction, and can be folded. Each cover arm 33 can rotate between a state (closed state) substantially parallel to the plate surface of the cover body 31 and a state (open state) substantially perpendicular to the plate surface of the cover body 31. Has been.

  When the cover arms 33R and 33L are in the open state, the cover arms 33R and 33L are substantially parallel to each other and extend in the mounting direction of the protective cover 30, and the end positions of the cover arms 33R and 33L are located at the cover body 31. Is located at the same distance from

  When both the cover arms 33R and 33L are in the closed state, the left cover arm 33L is arranged along the plate surface of the cover body 31, and the left cover arm 33L has a surface on the opposite side to the cover body 31. The right cover arm 33R is arranged along (see FIG. 9). At this time, both the cover arms 33R and 33L are in a state where the tips are overlapped with each other.

  The cover arms 33R and 33L are provided with engaging means 35 that can be engaged when the cover arms 33R and 33L are folded and can be held so that the cover arms 33R and 33L are not separated from each other. The engaging means 35 includes a first engaging portion 35A and a second engaging portion 35B that are elastically engaged when approaching each other and released from engagement when separated from each other (see FIG. 5). The first engagement portion 35A has a pair of elastic pieces 36 that can be elastically expanded and deformed, while the second engagement portion 35B has a protrusion 37 that is inserted between the pair of elastic pieces 36. ing.

  The engaging means 35 is provided on a surface that is disposed to face the cover arms 33R and 33L when the cover arms 33R and 33L are folded. Specifically, the first engagement portion 35A of the engagement means 35 is formed on the outer surface of the left cover arm 33L (the outer surface when the opposing surfaces when the cover arms 33R and 33L are in the open state are the inner surfaces). The second engaging portion 35B is provided at a position near the tip of the inner side surface of the right cover arm 33R.

  The protective cover 30 has a stay 38 (corresponding to the connecting member of the present invention) that is spanned in the opposing direction of the pair of cover arms 33 and is connected to both cover arms 33R and 33L at both ends. The stay 38 is an elongated bar member having a slightly horizontally long and substantially rectangular cross section, and its length dimension is a dimension extending between the cover arms 33R and 33L in an open state (a dimension slightly larger than the width direction dimension of the cover body 31). It is said that. The stay 38 is separate from the pair of cover arms 33 and the cover main body 31, and is connected to the cover arm 33 by pins 39 provided at both ends in the longitudinal direction. By connecting the stay 38, the pair of cover arms 33 is firmly held in the open state, and the force applied to the cover arm 33 is received by the stay 38, and the protection cover 30 is reinforced and positioned.

  Both cover arms 33R and 33L are provided with stay connecting portions 41 to which both ends of the stay 38 are fixed. The stay connecting portion 41 is located on the upper side when the cover arm 33 is inserted into the arm insertion path 15 to a normal depth position at a position closer to the tip than the substantially central position in the length direction of both the cover arms 33R and 33L. The holding wall 16 is provided at a position facing the lock portion 66. Each stay connecting portion 41 has a shape in which the upper surface of each cover arm 33 is recessed downward, and the recessed dimension is the same as the thickness dimension (vertical dimension) of the stay 38. In the state in which the end of the stay 38 is fitted, the upper surface of the stay 38 and the upper surface of the cover arm 33 are substantially flush (substantially flat) (see FIGS. 6 and 7). Each stay connecting portion 41 is provided with a hole 42 into which a pin 39 can be inserted. When the stay 38 is fixed, the head 39A of the pin 39 protrudes upward from the upper surface of each cover arm 33.

  A stay placement portion 43 to which the stay 38 can be placed and attached is provided at the upper edge portion of the cover main body 31. The stay placement portion 43 is an upper surface of a portion protruding from the cover body 31 in the horizontal frame 32 </ b> H arranged along the upper edge of the cover body 31. The upper ends of the left and right vertical frames 32T are pin-fixed from below to the upper horizontal frame 32H, so that the heads of the pins are prevented from projecting to the upper surface side of the horizontal frame 32H. The mounting portion 43 is a substantially flat surface over its entire length.

  The stay 38 and the stay placement portion 43 are provided with an engaging means 44 having the same structure as the engaging means 35 described above. Of the engaging means 44, a pair of first engaging portions 44 </ b> A are provided at positions near both longitudinal ends of the stay placing portion 43, and a second engaging portion 44 </ b> B is connected to the first engaging portion 44 </ b> A of the stay 38. A pair is provided at corresponding positions.

  The protective cover 30 includes a damper 45 that functions as a buffer member that prevents direct contact between the folded cover arm 33 and the cover main body 31.

  The protective cover 30 is provided with a pair of handles 46. The pair of handles 46 are provided at both ends in the width direction of the cover main body 31 and protrude from the plate surface of the cover main body 31. Each handle 46 has a shape in which a bar member is bent in a substantially U shape, and both ends thereof are connected to the vertical frame 32T through through holes 47 formed in the cover main body 31. Since each handle 46 is connected to the vertical frame 32T, a force acting on the handle 46 is received by the frame portion 32, which is advantageous in repeatedly attaching and detaching the protective cover 30. The mounter body 10 is provided with a hook (not shown). When the protective cover 30 is not used, the protective cover 30 can be stored by hooking the handle 46 on the hook.

  The pair of cover arms 33 is provided with one cover-side convex portion 48. Each cover-side convex portion 48 is disposed at a position closer to the cover body 31 than the stay connecting portion 41 and has a shape protruding upward from the upper surface of the cover arm 33, and is one of two lock portions 66 described later. It can be fitted to (not the lock portion 66 corresponding to the head 39A of the pin 39). The interval between the stay connecting portion 41 and the cover-side convex portion 48 is equal to the interval between the two carriage-side convex portions 25 (the interval between the two lock portions 66). Further, the cover-side convex portion 48 and the head 39A of the pin 39 have substantially the same projecting dimensions and shape as the corresponding carriage-side convex portion 25, respectively. The stay connecting portion 41 and the cover-side convex portion 48 reach the normal depth position of the cover arm 33 with respect to the arm insertion path 15 (the position where the tip of the cover arm 33 reaches the back end of the arm insertion path 15). When inserted, they are respectively arranged at positions just below the corresponding lock portions 66 (positions where each lock portion 66 and the head 39A of each pin 39 and each cover side convex portion 48 face each other in the fitting direction) (FIG. 12). reference).

  Also, at the tip of one of the pair of cover arms 33 (in this embodiment, the right cover arm 33R in the insertion direction with respect to the arm insertion path 15), a metal plate is provided, as with the right carriage arm 23R. 49 is provided. The plate 49 has an L shape that extends in the vertical direction at the front end surface of the right cover arm 33R and is bent in a substantially right angle direction along the upper surface of the right cover arm 33R.

  Similarly to the right carriage arm 23R, when the cover arm 33 is attached to the right cover arm 33R at a regular position with respect to the arm insertion path 15, that is, the protective cover 30 is regular with respect to the mounting machine body 10. A cover-side connector 51 that is electrically connected to a body-side connector 67 described later when attached to the position is provided. The cover side connector 51 is provided on the upper surface of the right side cover arm 33 </ b> R like the right side carriage arm 23 </ b> R, and can be fitted to the main body side connector 67 from below.

  The protective cover 30 is assembled as follows. First, the right cover arm 33R in a folded state is sandwiched and a force is applied in the opening direction, the engagement of the engaging means 35 is released, and the right cover arm 33R is rotated to be in the open state. Next, the left cover arm 33L is pinched to apply a force in the opening direction, and the left cover arm 33L is rotated to be in the open state. After opening the pair of cover arms 33R and 33L in this way, the stay 38 is removed from the stay mounting portion 43, both ends are fitted to the stay connecting portions 41 of the cover arms 33R and 33L, and the pins 39 are stopped. The assembly of 30 is completed.

  The protective cover 30 is folded as follows. First, the pins 39 at both ends of the stay 38 are removed, the stay 38 is removed from the cover arms 33R and 33L, and the removed stay 38 is attached to the stay mounting portion 43. Next, the left cover arm 33L is clamped, a force is applied in the closing direction, the left cover arm 33L is rotated, and the damper 45 is applied to the cover main body 31 to close the left cover arm 33L. Next, when the right cover arm 33R is sandwiched and a force is applied in the closing direction, and the right cover arm 33R is rotated to engage the engagement means 35, the right cover arm 33R is closed, and the protective cover 30 Folding is complete.

  When the protective cover 30 is assembled and folded, the engagement means 35 is engaged or released along with the rotation of the right cover arm 33R. Therefore, the engagement or release and the rotation are separately performed. It takes less time than doing it. Similarly, the attachment and detachment of the stay 38 to and from the stay placement portion 43 is also troublesome because the engaging means 44 is engaged / released as the stay 38 is attached / detached. That is, since the engagement means 35 and 44 can be engaged and disengaged with one touch, the protective cover 30 can be easily assembled and folded.

  Moreover, since the protective cover 30 can be folded, the protective cover 30 can be stored in a compact shape. Therefore, space saving for storing the protective cover 30 can be achieved. Furthermore, when the protective cover 30 is not used (when the cover arms 33R and 33L are closed), the stay 38 removed from the cover arms 33R and 33L may be attached to the stay mounting portion 43. It is possible to prevent the stay 38 from being detached and lost.

  In addition, when the protective cover 30 is assembled, the pair of cover arms 33 are held open by the stay 38, so that the cover arms 33 are inadvertently folded when the protective cover 30 is attached to the mounting machine body 10. Can be prevented.

  A pair of arm insertion paths 15 into which the carriage arm 23 and the cover arm 33 can be inserted are provided on both side walls of each opening 14 of the mounting machine body 10. The pair of arm insertion paths 15 is provided at a substantially central position in the up-down direction of each opening 14, and extends long in the opening direction of the opening 14 in a form opened to the opposing direction and the opening direction of the opening 14. It has a groove shape (see FIGS. 10 and 11).

  The arm insertion path 15 is configured to be surrounded on three sides by the side wall of the opening 14, the upper holding wall 16 and the lower holding wall 17. The side wall, the upper holding wall 16 and the lower holding wall 17 correspond to the holding portion of the present invention. Both the lower surface of the upper holding wall 16 and the upper surface (surfaces facing each other) of the lower holding wall 17 are substantially flat surfaces and are substantially parallel to each other. The lower holding wall 17 has a length dimension larger than that of the upper holding wall 16, and the tip projects from the opening 14.

  Below each lower holding wall 17, a cylinder 18 (elevating means) is provided. Both cylinders 18 are attached to the mounting machine body 10 in a posture in which the axial direction is directed in the vertical direction (a posture in which a piston rod (not shown) protrudes upward). The piston rod is connected to a support member 19 fixed along the lower edge of the lower holding wall 17, and the lower holding wall 17 moves in the vertical direction (with respect to the upper holding wall 16 as the piston rod moves up and down. It moves in the direction of approaching / separating).

  As the lower holding wall 17 rises, the vertical dimension of the arm insertion path 15 is reduced (the width dimension of the arm insertion path 15 is narrow), and when the lower holding wall 17 is lowered, the arm is inserted. The height dimension of the path 15 is large (the width dimension of the arm insertion path 15 is wide). The lowest position of the lower holding wall 17 is obtained by adding a slight margin to the vertical height dimensions of the carriage arm 23 and the cover arm 33 (including the protruding dimensions of the carriage side convex portion 25 and the cover side convex portion 48). It is set at a position spaced downward from the upper holding wall 16 by the size. Then, the uppermost position of the lower holding wall 17 is a position that is higher than the lowermost position by an amount obtained by adding the projection dimension of the carriage-side convex part 25 and the cover-side convex part 48 and the secured margin dimension, in other words. And the height of the cart arm 23 and the cover arm 33 that do not include the protruding dimensions of the cart-side convex portion 25 and the cover-side convex portion 48 is set at a position spaced downward from the upper holding wall 16. . That is, when the lower holding wall 17 is at the lowermost position, the carriage arm 23 and the cover arm 33 can be inserted into and removed from the arm insertion path 15 (unlocked state), and the lower holding wall 17 is at the uppermost position. In some cases, the cart-side convex portion 25 or the cover-side convex portion 48 is fitted to the lock portion 66 so that the cart arm 23 and the cover arm 33 cannot be extracted from the arm insertion path 15 (locked state). The lower holding wall 17, the cylinder 18, and the lock portion 66 constitute the lock means of the present invention.

  On the lower surface of the upper holding wall 16, there is provided a concave lock portion 66 into which the cart side convex portion 25 and the cover side convex portion 48 can be fitted (see FIGS. 12 and 13). The lock portion 66 has a hole shape opening on the lower surface of the upper holding wall 16.

  Further, on the lower surface of the upper holding wall 16, a main body side connector 67 that can be fitted to the cart side connector 27 and the cover side connector 51 is provided. The main body side connector 67 is disposed at a position spaced from the lock portion 66 in front of the opening portion 14 by a predetermined interval. The main body side connector 67 is fitted to and detached from the carriage side connector 27 and the cover side connector 51 in the vertical direction (the approaching / separating direction between the upper holding wall 16 and the lower holding wall 17). The position of the main body side connector 67 is set so as to be disposed immediately above the carriage side connector 27 of the carriage arm 23 and the cover side connector 51 of the cover arm 33 that have reached the proper depth position. That is, when the depth of the carriage arm 23 or the cover arm 33 is deviated from the normal position with respect to the arm insertion path 15, the main body side connector 67, the carriage side connector 27, and the cover side connector 51 cannot be fitted. It is said that. Each main body side connector 67 is turned on when it is connected to the cart side connector 27 or the cover side connector 51, and is turned off when both the connectors 27 and 51 are not connected, and the switching is outputted as a detection signal. When the main body side connector 67 and the cart side connector 27 are electrically connected, the batch exchanging cart 20 (the component feeder 21 set on the feeder mounting portion 20A) and the control unit are connected via the connectors 67 and 27. Signal transmission to and from 60 is possible.

  The right cover arm 33R or the right carriage arm 23R is at a normal depth position with respect to the arm insertion path 15R on the rear end surface of the right arm insertion path 15R toward the back of the opening 14 of the both arm insertion paths 15. Position detecting means for detecting whether or not it has been inserted is provided. In this embodiment, the position detection means is a non-contact type proximity sensor (hereinafter referred to as a position sensor 68), and the plate 26 of the right carriage arm 23R or the plate 49 of the right cover arm 33R (that is, the right carriage arm 23R or the right side). When the tip of the cover arm 33R comes to a predetermined position, it is turned ON, and when the tip of the right cover arm 33R or the right carriage arm 23R is separated, it is turned OFF, and the change is output as a detection signal.

  Further, the mounting machine body 10 is provided with a raising switch 63 and a lowering switch 64 that can be pressed by an operator (see FIG. 14). An upward command signal for raising the lower holding wall 17 is generated by the pressing operation of the raising switch 63, and a lowering command signal for lowering the lower holding wall 17 is generated by the pressing operation of the lowering switch 64.

  The mounting machine body 10 is provided with a start switch 65 that can be pressed by an operator. When the start switch 65 is pressed, a start command signal for starting the mounting operation of the mounting machine body 10 is generated.

The mounting machine body 10 has a control unit 60 that functions as cylinder control means 61 that receives the ascending command signal or the descending command signal and controls the operation of the cylinder 18. The cylinder control means 61 constitutes the lock means of the present invention.
The transmission path of the ascending command signal and the descending command signal to the cylinder control means 61 is cut off when the position sensor 68 is OFF, and is connected when the position sensor 68 is ON. That is, when the position sensor 68 is OFF (when the carriage arm 23 or the cover arm 33 has not reached the normal depth position), the cylinder control means 61 is able to press the up switch 63 or the down switch 64. It does not work.

Further, the control unit 60 of the mounting machine body 10 performs an operation of mounting the electronic component on the substrate, specifically, transporting the substrate to the work position, an operation of supplying the electronic component of the component feeder 21, and movement of the head unit 12. It functions as mounting operation control means 62 for controlling a series of operations related to mounting of electronic components on a substrate, such as picking up electronic components and mounting on a substrate. The mounting operation control means 62 constitutes the mounting unit of the present invention.
The control unit 60 detects ON / OFF signals of all the main body side connectors 67, and when all the main body side connectors 67 are ON (all the main body side connectors 67 are connected to the cover side connector 51 or the cart side connector 27). (When in the state), the transmission path of the start command signal to the mounting operation control means 62 is connected, and when any one of the four main body side connectors 67 is in the OFF state (non-connected state) (main body side) When at least one of the connectors 67 is in a state where neither the cover-side connector 51 nor the carriage-side connector 27 is in a disconnected state), the transmission path is cut off. Further, the control unit 60 mounts the mounting machine main body 10 by the mounting operation control means 62 when one of the main body side connectors 67 is turned off while the mounting operation control means 62 is performing the mounting operation. Stop operation.

  Next, the attachment / detachment of the collective exchange cart 20 and the protective cover 30 and the mounting operation of the mounting machine body 10 will be described. Here, a case will be described in which the collective exchanging carriage 20 is attached to three of the four openings 14 and the protective cover 30 is attached to one opening 14.

First, the plurality of component feeders 21 are appropriately set at predetermined positions on the feeder mounting portion 20A, and the batch replacement cart 20 is mounted on the mounting machine body 10 in order.
The feeder placing portion 20 </ b> A is opposed to the opening portion 14, and the collective exchange cart 20 is brought close to the mounting machine body 10. At this time, since the lower holding wall 17 is at the lowest position, the pair of carriage arms 23 is inserted into the arm insertion path 15 little by little. When the carriage arm 23 reaches the normal depth position, the tip of the carriage arm 23 comes into contact with the position sensor 68, and the position sensor 68 is turned on.

  Thereafter, when the worker rotates the raising switch 63, the lower holding wall 17 rises and comes into contact with the lower surface of the carriage arm 23 to push up the carriage arm 23. Then, the cart side convex portion 25 of the cart arm 23 is fitted to the lock portion 66 from below, the cart side connector 27 is fitted to the main body side connector 67 from below, and the lower holding wall 17 is It reaches the top position. Then, the upper surface of the carriage arm 23 comes into contact with the lower face of the upper holding wall 16 and the carriage-side connector 27 and the main body-side connector 67 are properly fitted.

  In this way, the collective change cart 20 is locked to the mounter body 10 so as not to be separated from the normal position. When the mounting of the three collective exchanging carts 20 on the mounting machine body 10 is completed, the setting of all the component feeders 21 necessary for the board mounting operation is completed, and the three openings 14 of the four openings 14 are It will be in the state where it was plugged with the parts feeder 21 set in each collective exchange cart 20. At this time, even if the start switch 65 of the mounting machine body 10 is pressed, the mounting operation is not started and is held in a stopped state.

Next, the protective cover 30 is attached.
The handle 46 of the protective cover 30 is clamped, and the cover arm 33 is moved toward the opening 14 and is brought closer to the mounting machine body 10 side. The pair of cover arms 33 are then inserted little by little into the arm insertion path 15 in the same manner as when the collective change cart 20 is mounted, and the position sensor 68 is turned on when the cover arm 33 reaches the normal depth position.

  Next, when the operator rotates the raising switch 63, the lower holding wall 17 rises and pushes up both the cover arms 33R and 33L in the same manner as when the collective exchanging carriage 20 is mounted, and the cover side convex portion 48 and the pin 39 The head 39A is fitted to the lock portion 66, the cover-side connector 51 is normally fitted to the main body-side connector 67, and the lower holding wall 17 reaches the uppermost position.

  In this way, the protective cover 30 is locked so as not to be separated from the normal position with respect to the mounting machine main body 10, and the opening 14 to which the protective cover 30 is attached is completely closed by the cover main body 31.

  By mounting the collective change cart 20 and the protective cover 30, when all the four openings 14 of the mounting machine body 10 are closed (all the main body side connectors 67 are in the ON state), the mounting operation is performed. When the stop state is released and the operator presses the start switch 65 of the mounting machine body 10, the mounting operation is started.

In order to remove the collective exchanging cart 20 for exchanging the collective exchanging cart 20, etc., the lock of the lowering switch 64 is released, and the collective exchanging cart 20 is pulled out to the front side to be detached from the mounting machine main body 10. Then, the main body side connector 67 is turned off and the mounting operation is stopped. Next, when the new batch exchanging cart 20 is mounted on the mounting machine main body 10, the stopped state is released, so that the mounting operation can be continued. If the lowering switch 64 is accidentally unlocked during the mounting operation, the main body side connector 67 is turned off and the mounting operation is stopped.
Similarly, when the protective cover 30 is removed, the lowering switch 64 is unlocked and pulled out to the front side to be detached from the mounting machine body 10.

According to the present embodiment configured as described above, the following effects can be obtained.
Only after the collective change cart 20 or the protective cover 30 is attached to the regular position in the opening 14 of the mounting machine body 10, the stopped state of the mounting machine body 10 is released. Accordingly, the mounting operation is performed while neither the collective exchanging carriage 20 nor the protective cover 30 is attached to the opening 14 of the mounting machine body 10 or the attached position remains out of the normal position even if attached. Can be prevented.
Furthermore, since the opening 14 is physically covered by the protective cover 30, no foreign material is allowed to enter. For this reason, since the high safety can be ensured without securing a space behind the opening as in the case of using the area sensor, the mounter body 10 can be made compact.
That is, according to the configuration of the present invention, the mounting operation cannot be performed on the opening portion 14 to which the collective exchanging carriage 20 is not attached unless the protective cover 30 is attached at a proper position, and the protective cover 30 ensures the mounting. Intrusion of foreign matter can be prevented, so that high safety can be ensured without increasing the size of the mounting machine body 10.

  In addition, it is possible to avoid a situation in which the mounting machine main body is stopped by reacting just by squeezing a foreign object near the entrance of the opening as in the area sensor. Since the protective cover 30 is visible, the operator can easily notice when the protective cover 30 is not attached to the opening 14.

  Further, the cover arm 33 is locked (the lower holding wall 17 is lifted) only when the cover arm 33 is inserted into the arm insertion path 15 to a proper depth position (the position sensor 68 is turned on). It becomes possible. Therefore, the protective cover 30 can be reliably set at a regular position, and high safety can be ensured. Even if the cover arm 33 does not reach the proper depth position due to a failure or the like, even if the lower holding wall 17 can be raised, the cover side connector 51 is fitted to the main body side connector 67. Therefore, the mounting machine main body 10 is surely held in a stopped state, and a malfunction is detected by the operator.

  When the cover arm 33 of the protective cover 30 is inserted at a normal depth position of the arm insertion path 15, the cover side convex portion 48 and the head 39 </ b> A of the pin 39 are locked by fitting into the lock portion 66. The protective cover 30 is held without shifting from the normal position. Thereby, for example, even if a relatively large external force is applied to the protective cover 30, it is possible to prevent a situation where the protective cover 30 is displaced or eventually detached from the opening 14, thereby ensuring high safety. Can do.

Further, since the fixing means (in this embodiment, the pin 39) for fixing the stay 38 to the cover arm 33 also serves as a convex portion that engages with the lock portion 66, the number of parts is larger than when these are provided separately. Can be reduced.
In addition, since the cover main body 31 is reinforced by the frame portion 32, even if a foreign object collides with a strong momentum, the cover main body 31 is not easily damaged, and high safety can be ensured.

  In addition, when an area sensor is used as in the prior art, the area sensor must be provided in all openings of the mounting machine body, and the cost is high and the structure of the mounting machine body is complicated, which is not efficient. There is. However, in this embodiment, since the protective cover 30 can be reused, it is not necessary to provide the protective cover 30 by the number of all the openings 14, and in particular, in a mounting line having a large number of mounted components, Although a mounter is used, it is efficient because it can be shared with a plurality of such mounters. Furthermore, when the area sensor is used, since the detection area of the area sensor cannot be visually confirmed, the apparatus may be stopped by unintentionally entering the detection area during the setup operation. Further, the mechanism (holding portion, locking means, main body side connector 67, position sensor 68, etc.) provided in the mounting machine main body 10 operates not only for the collective change cart 20 but also for the protective cover 30; That is, since the mechanism of the mounting machine body 10 is common to the collective change cart 20 and the protective cover 30, the structure of the mounting machine body 10 does not have to be complicated.

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

(1) In the above embodiment, the present invention is applied to the surface mounter 1 in which the component feeder is set via the batch exchanging carriage 20 that can be attached to and detached from the component supply unit of the mounter body 10. Can also be applied to those in which the component feeder is directly set on the component supply unit of the mounting machine body.
(2) In the above embodiment, the cover arm 33 of the protective cover 30 and the carriage arm 23 of the collective exchanging carriage 20 are inserted into the common arm insertion path 15, but the arm insertion path 15 is used for the cover arm and the carriage arm. And may be provided separately.

  (3) In the above embodiment, the cover arm 33 is connected to the cover main body 31 via the hinge 34 and can be folded. However, the present invention is not limited to this. For example, the cover arm can be freely attached to and detached from the cover main body. It is possible to use a structure that can be assembled in an open state to the cover body when in use, and to be detached from the cover body when not in use. Further, the cover arm is not necessarily foldable.

  (4) In the above embodiment, the pair of cover arms 33 is connected by the stay 38, but it is not necessarily connected by the stay 38, and another member, for example, each cover arm may be used instead of the stay 38. A stopper for preventing the rotation of each cover arm in the closing direction may be provided on the base side of the cover.

(5) In the above embodiment, the stay 38 is a separate body, but it may be provided integrally with the cover arm.
(6) In the above embodiment, only the lower holding wall 17 can be displaced in the vertical direction. However, the present invention is not limited thereto, and only the upper holding wall or both the upper and lower holding walls may be displaced. .

(7) In the above embodiment, the arm insertion path 15 is configured to be surrounded on three sides by the side wall of the opening 14, the upper holding wall 16, and the lower holding wall 17. May be enclosed.
(8) In the above embodiment, the position sensor 68 is a non-contact type sensor, but may be a contact type sensor.

(9) In the above embodiment, the operation of the mounting machine main body 10 is stopped / released based on the ON / OFF state of the main body side connector 67. However, the present invention is not limited to such a connector. It may be used.
(10) In the above embodiment, the control unit 60 is provided in the mounting machine body 10, but is not limited thereto, and is provided, for example, in a management computer or the like connected to the mounting machine body through a network so as to be able to perform data communication with each other. May be.

(11) In the above-described embodiment, the convex portions 39A and 48 provided on the protective cover 30 or the convex portion 25 provided on the collective exchanging carriage fit into the lock portion 66 provided on the mounting machine main body 10. However, the concave / convex shape may be reversed, that is, the lock portion may be a convex portion, and the concave portion may be provided on the protective cover and the collective exchanging cart side.
(12) The material of the protective cover 30 can be selected as appropriate. For example, in the above embodiment, the cover main body 31 is made of an iron plate, but may be a translucent resin material.

External perspective view of surface mounter in this embodiment Schematic side view showing a state where a batch exchanging cart is attached to the mounting machine External perspective view of protective cover Front view Plan view Same side view Same left side view External perspective view of folded protective cover Plan view Partially enlarged perspective view of surface mounter Same part enlarged front view Schematic side view showing the state before the protective cover is locked Schematic side view showing the state where the protective cover is locked Block diagram showing the electrical configuration of the surface mounter

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Surface mounting machine 10 ... Mounting machine main body 11 ... Conveyor (mounting part)
12 ... Head unit (mounting part)
14 ... opening 16 ... upper holding wall (holding part)
17: Lower holding wall (holding part, locking means)
20 ... Batch exchange cart 21 ... Parts feeder (parts supply device)
27 ... Dolly side connector 30 ... Protective cover 31 ... Cover body 33 ... Cover arm (arm)
38 ... Stay (connecting member)
51 ... Cover-side connector 60 ... Control unit 61 ... Cylinder control means (locking means)
62 ... Mounting operation control means (mounting section)
66 ... Lock part (locking means)
67 ... Body side connector

Claims (12)

In a surface mounter comprising a plurality of openings that can be attached to and detached from a batch exchanging carriage that can set a component supply device, and a mounting portion that transfers the electronic component from the component supply device and mounts it on a substrate,
A holding part capable of holding a protective cover covering the opening with respect to the opening;
When there is the opening where the collective exchange cart or the protective cover is not attached, the operation of the mounting portion is held in a stopped state, and the collective exchange cart or the protective cover is attached to all the openings. And a control unit that cancels the stopped state of the mounting unit. When the protective cover is attached to a regular position with respect to the opening, the main body side connector is electrically connected to a cover side connector provided in the protective cover;
The control unit holds the operation of the mounting unit in a stopped state when the main body side connector is not connected to the cover side connector in the opening where the collective exchanging carriage is not mounted. The surface mounter according to claim 1, wherein the stop state is released when the cover is connected to the cover-side connector. The surface mounting machine according to claim 1, wherein the holding unit also serves as a holding unit capable of holding the collective exchanging carriage with respect to the opening. The surface mounting machine according to any one of claims 1 to 3, wherein the holding unit includes a lock unit that locks the protective cover in a mounted state. 5. The surface mounter according to claim 4, wherein the locking unit also serves as a locking unit that locks the collective exchanging carriage in a mounted state. The main body side connector is for electrically connecting to a cart side connector provided in the batch exchanging cart when the collective exchanging cart is mounted at a regular position with respect to the opening,
The control unit holds the operation of the mounting unit in a stopped state when there is even one main body side connector that is not connected to the cover side connector or the cart side connector, and all the main body side connectors are The surface mounter according to any one of claims 2 to 5, wherein the stop state is released when the cover side connector or the cart side connector is connected. In a surface mounter comprising a plurality of openings to which a component supply device can be attached and detached, and a mounting unit that transfers electronic components from the component supply device and mounts them on a substrate,
A holding portion capable of holding the protective cover covering the opening with respect to the opening;
When there is the opening where the component supply device or the protective cover is not attached, the operation of the mounting portion is held in a stopped state, and the component supply device or the protective cover is attached to all the openings. And a control unit that cancels the stopped state of the mounting unit. When the protective cover is attached to a regular position with respect to the opening, the main body side connector is electrically connected to a cover side connector provided in the protective cover;
The control unit holds the operation of the mounting unit in a stopped state when the main body side connector is not connected to the cover side connector in the opening where the component supply device is not mounted. The surface mounter according to claim 7, wherein the stop state is released when the cover is connected to the cover-side connector. 9. The surface mounter according to claim 7, wherein the holding unit includes a lock unit that locks the protective cover in a mounted state. A protective cover for a surface mounter that is attached to an opening of a mounter body that is detachable from a component supply device, or a collective exchange cart that can be set by the component supply device,
A cover body covering the opening;
An engaging portion that engages with a holding portion of the mounting machine body,
A protective cover for a surface mounting machine, wherein the cover main body is held in a state of covering the opening when the engaging portion engages with the holding portion. 11. The protection for a surface mounter according to claim 10, wherein the engaging portion is an arm protruding in a mounting direction from the cover main body to the opening, and the arm is foldable. cover. The protective cover for a surface mounter according to claim 11, comprising at least a pair of the arms and a connecting member that is stretched over and connected in an opposing direction of the pair of arms.

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