JP6752566B2 - Board transfer device - Google Patents

Description

The present invention relates to a substrate transfer device that conveys a substrate.

For example, in Patent Document 1, a first belt for transporting a work, a stage arranged adjacent to the first belt on the downstream side in the transport direction of the first belt and mounting the work, and a stage downstream in the transport direction with respect to the stage The second belt, which is arranged adjacent to the stage on the side and conveys the work, grips the work and carries it from the first belt to the stage, and at the time of this carrying, pushes the work on the stage from the stage to the second belt. A transport device including a transport means for carrying in is described. In this transfer device, the transfer speed of the transfer means is set to be faster than the transfer speed of the first and second belts, so that the work loading time can be shortened.

Japanese Unexamined Patent Publication No. 2003-137422

In the transport device described in Patent Document 1, when the second belt is provided so as to carry the work into the work device arranged on the downstream side in the transport direction of the second belt, the work is conveyed in the transport direction in the second belt. The tact time can be shortened by transporting and positioning the work device at the downstream end close to the work device. However, Patent Document 1 only describes the process of pushing the work on the stage from the stage to the second belt and carrying it in by the transport means, and does not describe the transport positioning of the work on the second belt.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a substrate transport device capable of transporting and positioning a substrate with high accuracy.

In order to solve the above-mentioned problems, it is a board conveyor that conveys a substrate, and can abut and separate a pair of rails arranged side by side in parallel and the substrate placed on the pair of rails. A moving member that can move along the rail and the moving member located at a member standby position on the rail are brought into contact with the substrate to move, and after the movement, the moving member is separated from the substrate. A moving device for moving to the member standby position, a conveyor arranged in series with the pair of rails, and a driving device for driving the conveyor are provided, and the moving device and the driving device are driven to drive the substrate. predetermined distance from the conveying direction front end of the substrate transport is possible for the substrate by causing a is driven only the conveyor part of the entire length of the base plate conveyance direction front end is positioned in the substrate standby position in the rail By driving the moving member, which is set so that the transfer speed of the substrate is faster than the transfer speed of the substrate by the conveyor, only the minutes are transferred from the rail to the conveyor driven by the drive device. The transferred substrate is conveyed only by the conveyor, and the front end of the substrate in the conveying direction is positioned at the substrate moving position on the conveyor. As described above, since the substrate standby position is preset in the rail and the substrate moving position is preset in the conveyor, the substrate can be accurately positioned at the substrate moving position based on the relationship between both positions and the like.

It is a top view which shows the outline of the component mounting line which comprises embodiment of the substrate transfer apparatus (the first and second substrate transfer apparatus) of this invention. It is the schematic which looked at the 1st component mounting machine of FIG. 1 in the Y direction. It is a figure which shows the position and distance about a substrate set in the 1st and 2nd substrate transfer apparatus, and the position and distance about a moving member. It is a flowchart for demonstrating the 1st operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the substrate is positioned at the substrate standby position by the 1st operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the moving member came into contact with a substrate in the 1st operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the substrate was transferred from a rail to a conveyor by the 1st operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the moving member separated from the substrate by the 1st operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the substrate is positioned at the substrate moving position by the movement of the conveyor in the 1st operation of the 1st and 2nd substrate transporting apparatus. It is a flowchart for demonstrating the 2nd operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the substrate is positioned at the substrate standby position by the 2nd operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the moving member came into contact with a substrate by the 2nd operation of the 1st and 2nd substrate transfer apparatus. It is a figure which shows the state which the substrate moves from the rail to the conveyor by the 2nd operation of the 1st and 2nd substrate transfer apparatus, and the moving member is separated from the substrate. It is a figure which shows the state which the substrate is positioned at the substrate movement position by the movement of the conveyor by the 2nd operation of the 1st and 2nd substrate transfer apparatus.

(1. Schematic configuration of a component mounting line equipped with a board transfer device)
Hereinafter, a component mounting line including an embodiment of the substrate transfer device of the present invention will be described with reference to the drawings. In the figure, the transport direction of the substrate PB is the Y-axis direction, the horizontal direction orthogonal to the Y-axis direction is the X-axis direction, and the X-axis direction and the vertical direction orthogonal to the Y-axis direction are the Z-axis directions.
As shown in FIG. 1, the component mounting line 1 includes a first component mounting machine 2, a second component mounting machine 3, a first board transfer device 4 provided in the first component mounting machine 2, and first and second components. The board transfer device of the present embodiment, which is the second board transfer device 5 arranged between the component mounting machines 2 and 3, is provided.

As shown in FIGS. 1 and 2, the first component mounting machine 2 is a device for mounting lead components such as axial components and radial components on a substrate. The first component mounting machine 2 is arranged on the back side of the upper surface of the base 2a (upper side of FIG. 1, right side of FIG. 2), and the first board transfer device 4 for loading and unloading the board PB and the upper surface of the base 2a. The component supply device 22 which is arranged on the front side (lower side of FIG. 1 and the left side of FIG. 2) to supply the lead parts and the lead parts which are arranged above the upper surface of the base 2a and are supplied are transferred. A lead component that is arranged below between the pair of rails 41a and 41b of the component transfer device 23 and the first substrate transfer device 4 to be mounted on the board PB to be carried in, and is inserted into the board PB to be carried in. It is provided with a lead cutting device 24 (corresponding to the "working device" of the present invention) and the like for cutting the leads of the above to a predetermined length.

The first substrate transfer device 4 is a shuttle type transfer device, and includes a pair of rails 41a and 41b for mounting and transporting the substrate PB, a moving member 42 for pushing and moving the substrate PB, and a moving member 42. It is provided with a member moving device 43 or the like to be moved.
The pair of rails 41a and 41b have an L-shaped cross section in the X-axis direction, extend in the Y-axis direction so that the L-shaped legs face each other, and are parallel to each other at intervals according to the width of the substrate PB. Be placed. Although not shown, one rail 41a is configured to be movable in the X-axis direction in order to match the distance between the pair of rails 41a and 41b with the width of the substrate PB.

As shown in FIG. 3, on the rails 41a and 41b, the substrate work position Pr for positioning the substrate PB for performing the cutting operation by the lead cutting device 24 and the substrate PB for which the cutting operation has been completed are transferred to the conveyor 51. The board standby position Pw to be made to stand by before is set in advance. The board work position Pr is set above the lead cutting device 24, and the board standby position Pw is the conveyor 51 of the second board transfer device 5 at the ends of the rails 41a and 41b on the downstream side in the transfer direction from the board work position Pr. It is set to a position close to. The front end of the substrate PB in the transport direction is positioned at the substrate working position Pr and the substrate standby position Pw.

Returning to FIGS. 1 and 2, the moving member 42 is formed in a rectangular parallelepiped shape, and is arranged so as to be in contact with and separated from the rear portion on the transport upstream side of the substrate PB mounted on the pair of rails 41a and 41b. .. Then, as shown in FIG. 3, the side surface of the moving member 42 on the downstream side in the transport direction, that is, the surface in contact with the rear portion of the substrate PB is on the upstream side in the transport direction from the substrate work position Pr immediately before the substrate PB is transported. It is positioned at the member standby position Pb set above the rails 41a and 41b. Here, the distance from the rear end of the substrate PB positioned at the substrate standby position Pw in the transport direction to the member standby position Pb is defined as a.

Returning to FIGS. 1 and 2, the member moving device 43 has an arm member 44 formed in a cylindrical shape and fixed to the tip so that the moving member 42 is perpendicular to the cylindrical axis, and a rear end of the arm member 44. A swing cylinder 45 that is fixed and swings the arm member 44 around the Y axis, a ball screw mechanism 46 that moves the swing cylinder 45 together with the arm member 44 in the Y axis direction, and a motor 47 that drives the ball screw mechanism 46. And a guide rail 48 or the like that guides the movement of the swing cylinder 45 in the Y-axis direction.

The component supply device 22 includes a feeder holder portion 26 or the like in which a plurality of feeders 25 for accommodating and supplying a plurality of lead components are set along the Y-axis direction. At the rear of the feeder 25, a plurality of, for example, axial parts are arranged in a direction perpendicular to the extending direction of the leads, and the leads extending from one end of the component body and the leads extending from the other end are connected by two tapes, respectively. A component tape loading section for loading component tape is provided. The front portion of the feeder 25 is provided with a component gripping portion for gripping the lead component supplied by the component tape with the component gripping claw 36 of the component transfer device 23.

The component transfer device 23 is a device that grips and transfers lead components, and includes a head holder 31 and the like that are moved in a horizontal plane by an XY robot 30. The XY robot 30 includes a pair of fixed rails 32a and 32b, a head moving rail 33, and the like. The pair of fixed rails 32a and 32b extend in the X direction above both ends of the first substrate transport device 4 and are arranged in parallel with each other. The head moving rail 33 is arranged so as to extend in the Y direction, and both ends thereof are movably supported along the fixed rails 32a and 32b. The movement of the head movement rail 33 is controlled by a servomotor (all not shown) via a ball screw.

The head holder 31 is movably supported along the head moving rail 33. The movement of the head holder 31 is controlled by a servomotor (all not shown) via a ball screw. The head holder 31 includes a recognition camera 34 capable of recognizing lead parts supplied to the part gripping portion of the feeder 25 and recognizing the component mounting position on the board PB, and a recognition camera 34 that can rotate around the Z axis and move up and down in the Z axis direction. A possible mounting head 35 is held. A gripping claw holder 37 that detachably holds the component gripping claw 36 that grips the lead component is projected downward from the mounting head 35.

The gripping claw holder 37 on which the component gripping claw 36 is mounted is supported so as to be able to move up and down in the Z-axis direction from the mounting head 35 and rotatably around the Z-axis line. The elevation of the gripping claw holder 37 on which the component gripping claw 36 is mounted is controlled by a servomotor (all not shown) via a ball screw, and the rotation of the gripping claw holder 37 on which the component gripping claw 36 is mounted is a gear. It is controlled by a servomotor (all not shown) via a mechanism. Further, a component recognition camera 38 capable of recognizing the gripping state of the component of the component gripping claw 36 is attached between the component transfer device 23 and the component supply device 22.

The lead cutting device 24 includes a cutter 49 and the like. The cutter 49 cuts the leads of the lead component inserted from the upper surface side of the substrate PB into the lead holes formed in the substrate PB to a predetermined length. The cutter 49 is configured to be movable in the XYZ axis direction within the range of the substrate PB.

The second substrate transfer device 5 is a conveyor type transfer device, and includes a conveyor 51 arranged in series with a pair of rails 41a and 41b, a drive device 50 for driving the conveyor 51, and the like. The conveyor 51 includes a pair of rollers 51a and 51b and a belt 52 and the like spanned between the pair of rollers 51a and 51b. The pair of rollers 51a and 51b are arranged in parallel with each other at a predetermined interval with the roller axes oriented in the X-axis direction. The belt 52 is an infinite belt. The drive device 50 is attached to one of the rollers 51a and includes a gear mechanism 53, a motor 54, an encoder 55 (corresponding to the “detection device” of the present invention), and the like.

As shown in FIG. 3, the conveyor 51 has a substrate movement in which the substrate PB conveyed from the substrate standby positions Pw of the rails 41a and 41b is temporarily stopped before being transferred to the substrate transfer device 6 of the second component mounting machine 3. The position Pm is preset. The board moving position Pm is set at a position close to the board transport device 6 of the second component mounting machine 3 at the end of the conveyor 51 on the downstream side in the transport direction. The front end of the substrate PB in the transport direction is positioned at the substrate moving position Pm. Here, the distance from the front end in the transport direction of the substrate PB positioned at the substrate standby position Pw to the substrate moving position Pm is defined as b.

Further, the position Ps on the belt 52 through which the straight line L in the Z-axis direction passing through the rotation center of the roller 51a of the conveyor 51 passes, that is, the front end of the substrate PB conveyed from the first substrate conveying device 4 contacts the belt 52. The distance between the substrate transfer position Ps at which the substrate PB can be conveyed by the belt 52 and the substrate standby position Pw in the first substrate transfer device 4 is preset to be d.

Returning to FIGS. 1 and 2, the second component mounting machine 3 is a device that mainly mounts bare chip components on a substrate. The second component mounting machine 3 is the same as the existing component mounting machine, and a schematic configuration will be described below. The second component mounting machine 3 includes a board transfer device 6, a component supply device 7, a component transfer device 8, and the like.
The board transfer device 6 is a conveyor type transfer device, in which the substrate PB is guided in the Y direction by a pair of guide rails 61a and 61b and conveyed to a component mounting position by a pair of conveyor belts 62a and 62b, and is conveyed by a clamp device 63. It is pushed up from the conveyor belts 62a and 62b, clamped, and positioned and fixed.

The component supply device 7 includes a plurality of cassette-type feeders 71 capable of mounting a reel R on which a carrier tape containing a plurality of bare chip components is wound at the rear, pulls out the carrier tape from the reel R at a predetermined pitch, and bare chips. The parts are sequentially fed to the front part of the feeder 71.
The component transfer device 8 is a device for sucking and transferring bare chip parts, and the bare chip parts sent to the front part of the feeder 71 are sucked by the parts suction nozzle 82 attached to the head holder 81, and the head moving rails 83a and 83b are sucked. , 83c, is transferred to the board PB positioned at the component mounting position, and mounted at the component mounting position on the board PB by the component suction nozzle 82.

(2. Operation of board transfer device)
Next, the flowchart of FIG. 4 and the case where the host computer of the component mounting line 1 controls the first operation of the first board transfer device 4 and the second board transfer device 5 constituting the board transfer device of the present embodiment. This will be described with reference to the operating state diagram of FIGS. 5A-5E. Here, as shown in FIG. 5A, the substrate PB carried into the first substrate transport device 4 is positioned at the substrate work position Pr on the rails 41a and 41b by the moving member 42, and is a lead component by the component transfer device 23. Is transferred from the component supply device 22 and mounted, and after the lead of the lead component is cut by the lead cutting device 24, the lead component 42 is moved to the substrate standby position Pw on the rails 41a and 41b and positioned. It shall be. Further, it is assumed that the moving member 42 is positioned at the member standby position Pb. Further, the length w of the substrate PB in the transport direction is known.

First, the host computer sets the transfer speed of the substrate Pb by the moving member 42 to be faster than the transfer speed of the substrate Pb by the conveyor 51 within an allowable range (step S1 in FIG. 4). The permissible range of the transfer speed is a range in which the substrate Pb does not slip or wear when the substrate Pb moves from the rails 41a and 41b to the conveyor 51. Specifically, the transfer speed of the substrate Pb by the moving member 42. Is set to be high within a few percent of the transfer speed of the substrate Pb by the conveyor 51.

Next, the host computer starts moving the moving member 42 (step S2 in FIG. 4) and starts driving the conveyor 51 (step S3 in FIG. 4). The start timings of the two may be simultaneous or slightly different. Then, as shown in FIG. 5B, when the moving member 42 moves a distance a from the member standby position Pb, it comes into contact with the rear end of the substrate PB positioned at the substrate standby position Pw in the transport direction. As a result, the substrate PB is pushed by the moving member 42 and conveyed on the rails 41a and 41b.

Next, the host computer determines whether or not the substrate PB has moved from the rails 41a and 41b to the conveyor 51 by a predetermined distance from the front end of the substrate PB in the transport direction (step S4 in FIG. 4). This predetermined distance is a distance at which the substrate PB can be conveyed only by the conveyor 51 without passing through the moving member 42, and is set to 1/2 of the length w of the substrate PB in the conveying direction in this example. Then, the host computer determines the substrate PB based on the moving distance of the moving member 42 from the member standby position Pb, the distance d between the substrate transfer position Ps and the substrate standby position Pw, and the length w of the substrate PB in the transport direction. It is determined whether or not the front end in the transport direction of is transported by w / 2 from the substrate transfer position Ps.

When the host computer determines that the board PB has moved from the rails 41a and 41b to the conveyor 51 by a predetermined distance (w / 2) from the front end of the board PB in the transport direction as shown in FIG. 5C (in step S4 of FIG. 4). Yes), as shown in FIG. 5D, the moving member 42 is separated from the substrate PB and returned to the member standby position Pb (step S5 in FIG. 4). Then, the host computer determines whether or not the substrate PB has reached the substrate moving position Pm by the encoder 55 when the substrate PB is transferred from the rails 41a and 41b to the conveyor 51 by a predetermined distance (w / 2) from the front end of the substrate PB in the transport direction. (Step S6 in FIG. 4), and as shown in FIG. 5E, when it is determined that the substrate PB has reached the substrate moving position Pm (Yes in step S6 in FIG. 4), the drive of the conveyor 51 is stopped (Yes). Step S7 in FIG. 4).

Next, the flowchart of FIG. 6 and the case where the host computer of the component mounting line 1 controls the second operation of the first board transfer device 4 and the second board transfer device 5 constituting the board transfer device of the present embodiment. This will be described with reference to the operating state diagram of FIGS. 7A-7D. Here, as shown in FIG. 7A, the substrate PB carried into the first substrate transport device 4 is positioned at the substrate work position Pr on the rails 41a and 41b by the moving member 42, and is a lead component by the component transfer device 23. Is transferred from the component supply device 22 and mounted, and after the lead of the lead component is cut by the lead cutting device 24, the lead component 42 is moved to the substrate standby position Pw on the rails 41a and 41b and positioned. It shall be. Further, it is assumed that the moving member 42 is positioned at the member standby position Pb. Further, the length w of the substrate PB in the transport direction is known.

First, the host computer of the component mounting line 1 sets the transport distance of the substrate PB by the conveyor 51 to the distance a from the rear end of the substrate PB located at the substrate standby position Pw in the transport direction to the member standby position Pb, and the substrate standby position Pw. The sum of the distances b from the front end of the substrate PB located in the transport direction to the front end of the substrate PB located at the substrate movement position Pm in the transport direction is set to be a + b. Further, the transfer speed of the substrate Pb by the moving member 42 and the transfer speed of the substrate Pb by the conveyor 51 are set to be the same or substantially the same transfer speed (step S11 in FIG. 6). Note that substantially the same transfer speed means that there may be an error within a range in which the substrate Pb does not slip or wear when the substrate Pb is transferred from the rails 41a and 41b to the conveyor 51.

Next, the host computer starts moving the moving member 42 and driving the conveyor 51 substantially in the same manner (step S12 in FIG. 6). Then, as shown in FIG. 7B, when the moving member 42 moves a distance a from the member standby position Pb, it comes into contact with the rear end of the substrate PB positioned at the substrate standby position Pw in the transport direction. As a result, the substrate PB is pushed by the moving member 42 and conveyed on the rails 41a and 41b.

Next, as described in step S4 of FIG. 4, the host computer determines whether or not the substrate PB has moved from the rails 41a and 41b to the conveyor 51 by a predetermined distance (w / 2) from the front end of the substrate PB in the transport direction. (Step S13 in FIG. 6). When the host computer determines that the substrate PB has transferred from the rails 41a and 41b to the conveyor 51 by a predetermined distance (w / 2) from the front end of the substrate PB in the transport direction as shown in FIG. 7C (in step S13 of FIG. 6). Yes), the moving member 42 is separated from the substrate PB and returned to the member standby position Pb (step S14 in FIG. 6).

Then, the host computer determines with the encoder 55 whether or not the drive distance from the start of driving the conveyor 51 has reached the sum of the distances a + b (step S15 in FIG. 6), and as shown in FIG. 7D, the conveyor 51 When it is determined that the driving distance from the start of driving has reached the sum of the above distances a + b (Yes in step S15 in FIG. 6), it is determined that the substrate PB has reached the substrate moving position Pm, and the driving of the conveyor 51 is stopped (Yes). Step S16 in FIG.

(effect)
As described above, according to the first and second substrate transfer devices 4 and 5 of the present embodiment, the pair of rails 41a and 41b arranged side by side and arranged in parallel and the pair of rails 41a and 41b are mounted on the pair of rails 41a and 41b. The moving member 42 that can abut and separate from the substrate PB and can move along the rails 41a and 41b and the moving member 42 located at the member standby position Pb on the rails 41a and 41b are brought into contact with the substrate PB and moved. After the movement, the moving member 42 is separated from the substrate PB and moved to the member standby position Pb, the conveyor 51 arranged in series with the pair of rails 41a and 41b, and the drive for driving the conveyor 51. The device 50 is provided.

Then, the moving device 43 and the driving device 50 are driven, the substrate PB whose front end in the conveying direction of the substrate PB is located at the substrate standby position Pw on the rails 41a and 41b is conveyed by the moving member 42, and the substrate PB is conveyed by the rails 41a and 41b. To the conveyor 51, the transferred substrate PB is conveyed by the conveyor 51, and the front end of the substrate PB in the conveying direction is positioned at the substrate moving position Pm on the conveyor 51. In this way, since the substrate standby position Pw is preset in the rails 41a and 41b and the substrate moving position Pm is preset in the conveyor 51, the substrate PB is set based on the relationship between the two positions Pw, Pm and the like. It can be accurately positioned at the board moving position Pm.

Further, the first and second substrate transfer devices 4 and 5 are set so that the transfer speed of the PB substrate by the moving member 42 is faster than the transfer speed of the substrate PB by the conveyor 51, and the substrate is conveyed by the moving member 42. When the PB is transferred from the rails 41a and 41b to the conveyor 51 by a predetermined distance w / 2 from the front end of the substrate PB in the transport direction, the moving member 42 is separated from the substrate PB, and the front end of the substrate PB in the transport direction is the substrate on the conveyor 51. The substrate PB is moved until it is located at the moving position Pm. According to this, in addition to the above-mentioned improvement in positioning accuracy, the transfer time of the substrate PB from the rails 41a and 41b to the conveyor 51 is shortened, so that the transfer tact time in the first and second substrate transfer devices 4 and 5 can be reduced. Can be shortened.

Further, the first and second substrate transfer devices 4 and 5 set the transfer distance of the substrate PB by the conveyor 51 to the distance a from the rear end of the substrate PB located at the substrate standby position Pw in the transfer direction to the member standby position Pb. It is set to be the sum of the distances b from the front end of the substrate PB located at the substrate standby position Pw in the transport direction to the front end of the substrate PB located at the substrate movement position Pm in the transport direction, and the transport speed of the substrate PB by the moving member 42. And the transfer speed of the substrate PB by the conveyor 51 are set to be substantially the same, and the substrate PB is moved by the moving member 42 and the conveyor 51 until the front end of the substrate PB in the transfer direction is located from the substrate standby position Pw to the substrate moving position Pm. According to this, in addition to the above-mentioned shortening of the transport tact time, the slip of the substrate PB with respect to the conveyor 51 when the substrate PB is transferred from the rails 41a and 41b to the conveyor 51 is suppressed, so that the substrate PB is moved to the substrate moving position Pm. Can be positioned more accurately.

Further, since the drive device 50 includes an encoder 55 that detects the transfer distance of the substrate PB by the conveyor 51, the transfer position of the substrate PB can be easily determined.
Further, the rails 41a and 41b are working devices 24 that perform predetermined work from below between the pair of rails 41a and 41b with respect to the substrate PB positioned at the substrate working position Pr on the upstream side in the transport direction from the substrate standby position Pw. The substrate standby position Pw is set to a position close to the conveyor 51 at the end of the rails 41a and 41b on the downstream side in the transport direction. As a result, the current board PB that has completed the work at the board work position Pr is conveyed to the board standby position Pw, so that the work of the next board PB can be started in a short time, and the work tact time can be shortened. Then, the substrate PB positioned at the substrate standby position Pw can transfer to the conveyor 51 in a short time, so that the transport tact time can be shortened.

In the above-described embodiment, although the second substrate transfer device 5 is provided independently of the first component mounting machine 2, it may be provided in the first component mounting machine 2. That is, the first board transfer device 4 and the second board transfer device 5 may be provided in the first component mounting machine 2 in a state of being arranged side by side.
The conveyor 51 of the second substrate transfer device 5 is composed of a pair of rollers 51a and 51b and a belt 52, but may be composed of a plurality of rollers in which the roller axes are arranged in parallel.
Further, the moving member 42 is configured to abut on the rear end of the substrate PB in the transport direction to transport the substrate PB, but a projecting portion is provided on the side surface or the front upper surface of the substrate PB and abuts on the protruding portion of the substrate PB. May be configured to convey. In that case, the substrate PB is conveyed by obtaining the moving distance of the moving member 42 according to the position where the protruding portion is provided.

Further, in the first and second operations of the first substrate transfer device 4 and the second substrate transfer device 5, the substrate PB is 1/2 of the length w in the transfer direction of the substrate PB from the front end in the transfer direction of the substrate PB. Only when the moving member 42 is transferred from the rails 41a and 41b to the conveyor 51, the moving member 42 is set to be separated from the substrate PB, but the present invention is not limited to this, and the substrate PB does not go through the moving member 42 but only the conveyor 51. Any distance may be used as long as it can be transported by. Further, the moving member 42 may be stopped moving or the moving speed may be gradually reduced instead of being separated from the substrate PB.

Further, the transfer distance of the substrate PB by the conveyor 51 is calculated by the detection value of the encoder 55, but an optical detector is installed above the conveyor 51 to detect and calculate the front end of the substrate PB in the transfer direction. It may be.
Further, the lead cutting device 24 has been described as an example of the working device, but the present invention is not limited to this. For example, the substrate PB is lifted from below between the pair of rails 41a and 41b and solder-printed on the surface of the substrate PB. The same applies to printing devices and the like.

1 ... Parts mounting line, 2 ... 1st component mounting machine, 3 ... 2nd component mounting machine, 4 ... 1st board transfer device, 5 ... 2nd board transfer device, 22 ... Parts supply device, 23 ... Parts transfer device , 24 ... Lead cutting device, 41a, 41b ... Rail, 42 ... Moving member, 43 ... Member moving device, 49 ... Cutter, 50 ... Drive device, 51 ... Conveyor, 51a, 51b ... Roller, 52 ... Belt, 55 ... Encoder , PB ... Substrate

Claims (3)

It is a substrate transfer device that conveys a substrate.
A pair of rails arranged side by side in parallel,
A moving member that can be brought into contact with and separated from the substrate mounted on the pair of rails and can move along the rails.
A moving device that moves the moving member located at the member standby position on the rail in contact with the substrate, moves the moving member, and then separates the moving member from the substrate and moves the moving member to the member standby position.
A conveyor arranged in series with the pair of rails,
A drive device for driving the conveyor is provided.
The mobile device and driving said drive device, the conveying direction front end of the substrate of the substrate at a portion at and be driven only the conveyor of the total length of the base plate located in the substrate standby position in the rail From the rail by driving the moving member set so that the transport speed of the substrate is set to be faster than the transport speed of the substrate by the conveyor for a predetermined distance from the front end in the transport direction of the substrate that can be transported. A board transfer device that transfers to the conveyor driven by the drive device, conveys the transferred substrate only by the conveyor, and positions the front end of the substrate in the transfer direction at a substrate moving position on the conveyor. The substrate transfer device according to claim 1, wherein the drive device includes a detection device that detects a transfer distance of the substrate by the conveyor. The rail is provided in a work device that performs a predetermined work from below between the pair of rails with respect to the board positioned at a board work position on the upstream side in the transport direction from the board standby position.
The substrate transfer device according to claim 1 or 2 , wherein the substrate standby position is set at a position close to the conveyor at the end of the rail on the downstream side in the transfer direction.

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