Conveying device and conveying method

Abstract

To position a conveyed object more reliably at a predetermined position.SOLUTION: A conveying device includes a pair of rails extending parallel in a horizontal direction, and conveys a conveyed object used in a production line on the pair of rails and positions it at a predetermined position. The conveying device comprises: a pressing member which has a suction portion that sucks onto a suction object portion of the conveyed object in a plane perpendicular to an extending direction of the rails; a lifting unit which moves the pressing member up and down; a moving unit which moves the pressing member in the extending direction of the pair of rails; a clamping unit which clamps the conveyed object on the pair of rails with respect to the pair of rails; and a control unit which controls the lifting unit and the moving unit so that the pressing member descends and the suction portion of the pressing member sucks onto the suction object portion of the conveyed object, controls the moving unit so that the conveyed object is conveyed to the predetermined position, controls the clamping unit so that the conveyed object is clamped at the predetermined position, and then controls the lifting unit and the moving unit so that the pressing member retracts from the conveyed object.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] This specification discloses a conveying device and a conveying method.

Background Art

[0002] Conventionally, as this type of conveying device, a working device (printing device) has been proposed that includes a pair of left and right support rails extending back and forth, a head including a pusher and a pusher lifting device for lifting and lowering the pusher, and a head moving device for moving the head back and forth (see, for example, Patent Document 1). This working device lowers the pusher by the pusher lifting device to project it downward, and moves the pusher back and forth together with the head by the head moving device, thereby pushing and conveying the object to be conveyed (screen mask or conveying jig) on the support rail back and forth.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described working device, since the object to be conveyed on the support rail is pushed back and forth by the pusher, even after the object to be conveyed has moved to the target position and the pusher has stopped, the object to be conveyed may advance beyond the target position due to inertia, and there may be a case where the object to be conveyed cannot be positioned at the target position.

[0005] The main object of the present disclosure is to more reliably position an object to be conveyed at a predetermined position in a case where the object to be conveyed on a rail is pushed by a pressing member for conveyance.

Means for Solving the Problems

[0006] The present disclosure has taken the following means to achieve the above main object.

[0007] The transfer device of the present disclosure is a transfer device that includes a pair of rails extending horizontally in parallel and positions an object to be transferred used in a production line on the pair of rails and positions it at a predetermined position, a pressing member having a suction portion that sucks on the adsorbed portion of the object to be transferred on a plane orthogonal to the extending direction of the rail, a lifting portion that raises and lowers the pressing member, a moving portion that moves the pressing member in the extending direction of the pair of rails, a clamping portion that clamps the object to be transferred on the pair of rails to the pair of rails, and a control portion that controls the lifting portion and the moving portion so that the pressing member descends and the suction portion of the pressing member sucks on the adsorbed portion of the object to be transferred, controls the moving portion so that the object to be transferred is transferred to the predetermined position, controls the clamping portion so that the object to be transferred is clamped at the predetermined position, and then controls the lifting portion and the moving portion so that the pressing member retracts from the object to be transferred. The gist is to include the above.

[0008] In this transfer device of the present disclosure, after adsorbing the object to be transferred (adsorbed portion) to the pressing member (suction portion), the object to be transferred is pressed by the pressing member and transferred to a predetermined position, and after clamping the object to be transferred at the predetermined position, the pressing member is retracted from the object to be transferred. Thereby, the object to be transferred can be positioned more reliably at the predetermined position.

[0009] The transfer method of the present disclosure is a transfer method that uses a pair of rails extending horizontally in parallel and a pressing member to transfer an object to be transferred used in a production line on the pair of rails and position it at a predetermined position, adsorbing the pressing member to the object to be transferred on a plane orthogonal to the extending direction of the rail, moving the pressing member in the extending direction of the pair of rails to transfer the object to be transferred to the predetermined position, After clamping the object to be conveyed at the predetermined position, retract the pressing member from the object to be conveyed. This is the gist.

[0010] In the conveying method of this disclosure, the same effects as those of the conveying device of this disclosure can be achieved.

Brief Description of the Drawings

[0011]

Figure 1

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Embodiments for Carrying Out the Invention

[0012] Next, embodiments for carrying out this disclosure will be described with reference to the drawings.

[0013] FIG. 1 is a perspective view of the printing machine 10 and the storage rack 60. FIG. 2 is a side view of the printing machine 10 and the storage rack 60. FIG. 3 is a perspective view of the pusher 24. FIG. 4 is a perspective view of the substrate support member 32 and the replacement frame 80. FIG. 5 is a perspective view of the storage rack 60, the replacement frame 80, and the transfer rail 40. FIG. 6 is a perspective view of the transfer rail 40. FIG. 7 is a block diagram showing the electrical connection relationship of the printing machine. In FIGS. 1 to 6, the left-right direction is the X-axis, the front-back direction is the Y-axis, and the up-down direction is the Z-axis.

[0014] The printing machine 10 of the present embodiment prints solder paste on the lower substrate S through the pattern holes by pushing the solder paste on the screen mask M into the pattern holes formed in the screen mask M using the squeegee 22. The printing machine 10 is combined with a component mounter that mounts electronic components on the substrate S on which solder has been printed to form a production line. Further, when changing the type of the substrate S to be produced, the printing machine 10 can automatically replace the screen mask M and the substrate support member 32 that supports the substrate S according to the type of the substrate S.

[0015] As shown in FIGS. 1 and 2, the printing machine 10 includes a printing machine main body 11, a housing 12 that houses the printing machine main body 11, an exchange device 50, a storage rack 60, and a control device 100 (see FIG. 7) that controls the entire printing machine. The printing machine main body 11 has a head device 20, a substrate transfer device 30, a recognition unit 35, and a transfer rail 40.

[0016] The head device 20 is installed in the upper part of the printing machine main body 11. As shown in FIG. 1, the head device 20 includes a head main body 21 and a head moving unit 26 that moves the head main body 21 in the front-rear direction (Y-axis direction), which is the printing direction. The head moving unit 26 includes a guide rail 28 extending in the front-rear direction, a Y-axis slider 27 that moves along the guide rail 28, a motor 29a that drives the Y-axis slider 27, and a position sensor (encoder) 29b that detects the position of the head main body 21. As shown in FIG. 2, the head main body 21 includes a pair of squeegees 22 in the front and rear, a pair of squeegee elevating parts 23 configured by, for example, air cylinders to raise and lower the corresponding squeegees 22, a pusher 24, and a pusher elevating part 25 configured by, for example, air cylinders to raise and lower the pusher 24. The pair of front and rear squeegees 22 are plate-shaped members extending in the left-right direction (X-axis direction) orthogonal to the printing direction, and are inclined so as to be spaced apart from each other as they go downward when viewed from the left-right direction. As shown in FIG. 3, the pusher 24 has a pair of first pressing parts 24a in the front and rear and left and right with a contact surface formed on a surface orthogonal to the front-rear direction (Y-axis direction), and a pair of second pressing parts 24b in the left and right with a contact surface formed downward. A pair of left and right conveying rails 40 extending in the front and rear are installed in the middle part of the printing machine main body 11. The pusher 24 is moved back and forth by the head moving unit 26 in a state of being lowered by the pusher elevating part 25, so as to push the exchange frames 70, 80 on the conveying rails 40 back and forth with the first pressing parts 24a. As shown in FIG. 2, the exchange frames 70, 80 move in and out of the housing 12 through a passage opening 38 provided in the middle part of the front surface of the housing 12. Note that a detection sensor 39 for detecting the passage of the exchange frames 70, 80 is provided at the passage opening 38.

[0017] The substrate transfer device 30 is installed at the lower part of the printing machine main body 11. The substrate transfer device 30 loads and positions and supports the substrate S, and also contacts and separates the substrate S from the screen mask M (back surface). As shown in FIG. 2, the substrate transfer device 30 includes a substrate transfer unit 31 that transfers the substrate S in the left-right direction (X-axis direction), a substrate support member 32 that supports the substrate S transferred by the substrate transfer unit 31 from below, a lifting table 34 on which the substrate support member 32 is placed, and a substrate support member lifting unit 33 that lifts and lowers the substrate support member 32 together with the lifting table 34. The substrate support member 32 is replaced with one of a size suitable for supporting the substrate S according to the type of the substrate S.

[0018] The recognition unit 35 recognizes the substrate S and the substrate support member 32. As shown in FIG. 1, the recognition unit 35 includes a camera body 36 and a camera moving unit 37 that moves the camera body 36. The recognition unit 35 reads a mark attached to the upper surface of the substrate S when the substrate S is transferred and positioned by the substrate transfer device 30 to recognize the position of the substrate S. Further, the recognition unit 35 reads a mark attached to the substrate support member 32 held by the exchange frame 80 when the exchange frame 80 is transferred and positioned on the transfer rail 40 to recognize the position and size of the substrate support member 32.

[0019] The exchanger 50 accepts a storage rack 60 that houses replacement members (such as the screen mask M and the substrate support member 32) used in the printing press main body 11 using replacement frames 70 and 80, and conveys the replacement members between the storage rack 60 and the printing press main body 11. As shown in FIG. 1, the exchanger 50 includes a left unit 51a installed on the left side of the front (front face) of the printing press main body 11 and a right unit 51b installed on the right side of the front of the printing press main body 11. The left unit 51a and the right unit 51b have a rack support member 52 that accepts the storage rack 60 and supports its lower surface from both the left and right sides, and a rack elevating unit 53 that raises and lowers the rack support member 52. The rack elevating unit 53 is composed of, for example, a combination of a ball screw mechanism and a motor, or a linear motor. The storage rack 60 supported by the rack support member 52 moves up and down together with the rack support member 52 by the rack elevating unit 53. Further, the left unit 51a and the right unit 51b have a frame forward and backward moving unit 54 that sends the replacement frames 70 and 80 in the storage rack 60 back and forth from both the left and right side surfaces by a belt, a roller, or the like.

[0020] As shown in FIG. 1, the accommodation rack 60 has a plurality of pairs of left and right support rails 61 arranged vertically in multiple stages, and is an accommodation body capable of accommodating replacement members (replacement frames 70 and 80) in each support rail 61. Openings 62 and 63 are formed in the front surface on the side opposite to the printing machine body 11 of the accommodation rack 60 and the rear surface on the side of the printing machine body 11. The replacement members (replacement frames 70 and 80) are taken in and out by an operator or the like through the opening 62 on the front side, and are carried into and out of the printing machine body 11 by the frame front-rear moving unit 54 through the opening 63 on the rear side. In a state where the accommodation rack 60 is received in the replacement device 50, the frame front-rear moving unit 54 sends out a replacement member supported by a support rail 61 positioned at substantially the same height as the transport rail 40 of the printing machine body 11 among the plurality of support rails 61 of the accommodation rack 60 to the printing machine body 11. Further, the frame front-rear moving unit 54 sends a replacement member supported by the transport rail 40 of the printing machine body 11 into a support rail 61 of the accommodation rack 60 positioned at substantially the same height as the transport rail 40. Note that the accommodation rack 60 may be transported by an operator to the receiving position of the replacement device 50, or may be mounted on an automatic transport device (AGV) and automatically transported to the receiving position of the replacement device 50 by the automatic transport device.

[0021] The replacement frame 70 is a frame body that supports the screen mask M. The screen mask M is a thin metal plate and is supported by the replacement frame 70 in a state where a predetermined tension is applied. The screen mask M is positioned and fixed at the working position on the transport rail 40 while being supported by the replacement frame 70 and is used for printing.

[0022] As shown in FIG. 4, the exchange frame 80 is a frame that supports the substrate support member 32 and has substantially the same left - right width as the exchange frame 70. The exchange frame 80 includes a rectangular outer frame 81 and a pair of support arms 82 that are attached to the outer frame 81 such that their tip portions face each other and support the substrate support member 32 from both sides at the tip portions. The base end portion of one support arm 82 is disposed near the left side portion 81a of the outer frame 81 and is rotatably supported by a rotation axis 83 parallel to the left side portion 81a. The base end portion of the other support arm 82 is disposed near the right side portion 81b of the outer frame 81 and is rotatably supported by a rotation axis parallel to the right side portion 81b. The pair of support arms 82 are urged to a horizontal posture by a spring and support the substrate support member 32 in the horizontal posture. Further, the pair of left - right support arms 82 are pushed downward by the pusher 24 and expand downward to release the support of the substrate support member 32. As described above, the pusher 24 is provided with a pair of left - right second pressing portions 24b (see FIG. 3). The pusher 24 is lowered by the pusher elevating portion 25 above the pair of support arms 82, and the pair of support arms 82 are pushed down by the pair of second pressing portions 24b.

[0023] Also, in this embodiment, as shown in FIG. 4, the exchange frame 80 includes a cam follower 84 and a magnet member 85. A plurality (for example, five) of cam followers 84 are attached to the lower surfaces of the left side portion 81a and the right side portion 81b of the outer frame 81 so that the exchange frame 80 can roll on the transport rail 40.

[0024] In this embodiment, the magnet member 85 is formed of a permanent magnet and is attached to the inner surface of the side portion 81c of the outer frame 81 that is orthogonal to the left side portion 81a and the right side portion 81b. The side portion 81c is the side portion on the tip side in the direction from the accommodation rack 60 upward to the lifting table 34 among the two side portions of the outer frame 81 that are orthogonal to the left side portion 81a and the right side portion 81b. And the inner surface of the side portion 81c is the surface to be abutted against which the first pressing portion 24a of the pusher 24 abuts when pushing and transporting the exchange frame 80 back and forth. The first pressing portion 24a of the pusher 24 is formed of a magnetic material. Therefore, by bringing the first pressing portion 24a close to the magnet member 85, the pusher 24 is attracted to the exchange frame 80 by the magnetic attraction force of the magnet member 85.

[0025] As shown in FIG. 2, the transport rail 40 is installed on the fixing base 43 so as to be substantially at the same height as the passage port 38 in the middle section of the printing machine main body 11, and is a pair of left and right long rails extending in the front-rear direction (Y-axis direction). As shown in FIGS. 5 and 6, the transport rail 40 includes a pair of left and right first transport surfaces 41 and a pair of left and right second transport surfaces 42 provided at a position inside and lower than the pair of left and right first transport surfaces 41. The pair of left and right first transport surfaces 41 are used for transporting the exchange frame 70 (screen mask M) and support the exchange frame 70 in a horizontal posture. The pair of left and right second transport surfaces 42 are used for transporting the exchange frame 80 (substrate support member 32) and support the exchange frame 80 in a horizontal posture. As described above, cam followers 84 are attached to the lower surfaces of the left side portion 81a and the right side portion 81b of the outer frame 81 of the exchange frame 80, and the exchange frame 80 travels on the second transport surface 42 by the cam followers 84 rolling on the second transport surface 42.

[0026] Above the pair of left and right transport rails 40, a plurality (for example, three) of clamp portions 45 for clamping the exchange frame 70 (screen mask M) and the exchange frame 80 (substrate support member 32) are provided along the transport rails 40. Each clamp portion 45 includes a contact portion 46 and a lifting portion 47 (for example, an air cylinder) that is installed on the fixed base 43 and raises and lowers the contact portion 46. Each clamp portion 45 clamps the exchange frames 70 and 80 by pressing them against the transport rails 40 with the contact portion 46 by lowering the contact portion 46 while the exchange frames 70 and 80 are positioned on the transport rails 40.

[0027] As shown in FIG. 7, the control device 100 is configured as a microprocessor centered on the CPU 101, and includes a ROM 102, a RAM 103, and a storage device 104 in addition to the CPU 101. The control device 100 exchanges signals with the head device 20, the substrate transport device 30, the recognition unit 35, the clamp unit 45, and the exchange device 50. Further, the control device 100 is communicably connected to a management device 200 that manages the production line including the printing machine 10.

[0028] Next, the operation of the printing machine 10 configured in this way, particularly the operation of transporting and exchanging the screen mask M and the substrate support member 32 together with the exchange frames 70 and 80 during setup change, will be described. Here, the transport rail 40, the pusher 24, the pusher lifting portion 25, and the head moving portion 26 of the present embodiment are examples of the transport device of the present disclosure.

[0029] The replacement of the screen mask M is performed as follows. That is, the CPU 101 of the control device 100 first controls the pusher lifting unit 25 and the head moving unit 26 to push the replacement frame 70 on the first transport surface 41 that supports the used screen mask M with the pusher 24 to move it on the first transport surface 41, and carry out the replacement frame 70 from the through port 38 to the outside of the housing 12. Subsequently, the CPU 101 controls the replacement device 50 to collect the replacement frame 70 into the storage rack 60. Next, the CPU 101 controls the replacement device 50 to take out the replacement frame 70 that supports the new screen mask M from the storage rack 60 and carry it into the housing 12 through the through port 38. Then, the CPU 101 controls the pusher lifting unit 25 and the head moving unit 26 to push the carried-in replacement frame 70 with the pusher 24 to move it on the first transport surface 41, thereby transporting the replacement frame 70 (new screen mask M) to the working position and positioning it.

[0030] Further, the control device 100 also replaces the substrate support member 32 according to the type of the substrate S to be produced. FIG. 8 is a flowchart showing an example of the substrate support member replacement process executed by the CPU 101 of the control device 100. The substrate support member replacement process is performed after retracting the screen mask M (replacement frame 70) on the transfer rail 40 into the storage rack 60 and collecting the used substrate support member 32 placed on the lifting table 34 into the storage rack 60. The collection of the used substrate support member 32 is performed as follows. That is, the CPU 101 takes out an empty replacement frame 80 that does not support the substrate support member 32 from the storage rack 60 and carries it into the housing 12 through the passage port 38. Subsequently, the CPU 101 controls the pusher lifting unit 25 and the head moving unit 26 to push the carried-in empty replacement frame 80 with the pusher 24 and move it on the second transfer surface 42, thereby transporting and positioning the empty replacement frame 80 to the stop position (above the lifting table 34). Next, the CPU 101 delivers the used substrate support member 32 placed on the lifting table 34 from the lifting table 34 to the empty replacement frame 80. The delivery of the substrate support member 32 from the lifting table 34 to the replacement frame 80 is performed as follows. The CPU 101 controls the pusher lifting unit 25 to lower the pair of support arms 82 with the pair of second pressing portions 24b of the pusher 24 and expand the pair of support arms 82. Subsequently, the CPU 101 controls the substrate support member lifting unit 33 to raise the lifting table 34 (used substrate support member 32) so that the used substrate support member 32 enters between the pair of support arms 82. Then, the CPU 101 controls the pusher lifting unit 25 to raise the pusher 24 and release the pressing of the pair of support arms 82 by the pair of second pressing portions 24b. Thereby, the used substrate support member 32 is supported by the pair of support arms 82. After the CPU 101 supports the used substrate support member 32 by the replacement frame 80, it controls the pusher lifting unit 25 and the head moving unit 26 to push the replacement frame 80 with the pusher 24 and move it on the second transfer surface 42, thereby carrying it out of the housing 12 through the passage port 38. Then, the CPU 101 controls the exchange device 50 to collect the replacement frame 80 into the storage rack 60.

[0031] Next, the substrate support member replacement process will be described with reference to FIGS. 9 to 13.

[0032] In the substrate support member loading process, first, the CPU 101 of the control device 100 controls the exchange device 50 to take out the exchange frame 80 supporting the new substrate support member 32 from the storage rack 60 and carry it into the housing 12 through the passage port 38 (S100). Subsequently, the CPU 101 controls the pusher lifting part 25 and the head moving part 26 to move the pusher 24 so that the first pressing part 24a of the pusher 24 is attracted to the magnet member 85 of the loaded exchange frame 80 (S110, see FIG. 9). Next, the CPU 101 controls the head moving part 26 to push the exchange frame 80 with the first pressing part 24a of the pusher 24 and move it on the second transport surface 42, thereby transporting the exchange frame 80 (new substrate support member 32) (S120, see FIG. 10). Then, the CPU 101 determines whether the exchange frame 80 has reached the stop position (above the lifting table 34) based on the signal from the position sensor 29b (S130).

[0033] When the CPU 101 determines that the exchange frame 80 has reached the stop position (see FIG. 11), after stopping the movement of the pusher 24 by the head moving part 26, the CPU 101 controls the clamp part 45 to lower the contact part 46, thereby pressing and clamping the exchange frame 80 against the second transport surface 42 with the contact part 46 (S140, see FIG. 12). After the CPU 101 clamps the exchange frame 80, the CPU 101 controls the pusher lifting part 25 and the head moving part 26 to move (retract) the pusher 24 so that the first pressing part 24a detaches from the magnet member 85 of the exchange frame 80 (S150, see FIG. 13).

[0034] In this way, after the CPU 101 adsorbs the magnet member 85 of the replacement frame 80 to the first pressing portion 24a of the pusher 24, the pusher 24 pushes the replacement frame 80 to convey it to the stop position, clamps the replacement frame 80 at the stop position, and then retracts the pusher 24 from the replacement frame 80. Thereby, even after stopping pushing the replacement frame 80 with the pusher 24, it is possible to prevent the replacement frame 80 from moving due to inertia, and more reliably position the replacement frame 80 (substrate support member 32) at the stop position. Therefore, it becomes possible to more reliably perform subsequent reading of the mark on the substrate support member 32 and the transfer of the substrate support member 32.

[0035] Next, the CPU 101 controls the camera moving portion 37 to move the camera body 36 to a predetermined recognition position, and reads the mark attached to the substrate support member 32 supported by the replacement frame 80 at the recognition position with the camera body 36 (S160). When the reading is successful, the CPU 101 transfers the substrate support member 32 from the replacement frame 80 to the lift table 34 (S170), collects the empty replacement frame 80 into the storage rack 60 (S180), and ends the substrate support member replacement process. The transfer of the substrate support member 32 from the replacement frame 80 to the lift table 34 is performed by controlling the substrate support member lifting portion 33 to raise the lift table 34, and pressing down the pair of support arms 82 with the pair of second pressing portions 24b of the pusher 24 above the lift table 34 to release the support of the substrate support member 32 by the pair of support arms 82. The collection of the empty replacement frame 80 is performed by controlling the pusher lifting portion 25 and the head moving portion 26 to push the empty replacement frame 80 with the pusher 24 to move it on the second conveyance surface 42, carry it out of the housing 12 from the passage port 38, and controlling the replacement device 50 to collect the empty replacement frame 80 into the storage rack 60.

[0036] Here, the correspondence between the main elements of the embodiment and the main elements of the present disclosure described in the claims will be described. That is, the transport rail 40 (second transport surface 42) of the present embodiment is an example of the rail of the present disclosure, the exchange frame 80 (substrate support member 32) is an example of the object to be transported, the pusher 24 is an example of the pressing member, the pusher lifting part 25 is an example of the lifting part, the head moving part 26 is an example of the moving part, the clamp part 45 is an example of the clamp part, and the control device 100 is an example of the control part. Further, the cam follower 84 is an example of the roller.

[0037] It should be noted that the present disclosure is not limited to the above-described embodiments at all, and it goes without saying that the present disclosure can be implemented in various modes as long as it belongs to the technical scope of the present disclosure.

[0038] For example, in the above-described embodiment, the exchange frame 80 is provided with a magnet member 85, and the first pressing part 24a of the pusher 24 is formed of a magnetic material. However, a magnet member may be provided on the first pressing part 24a of the pusher 24, and the surface of the exchange frame 80 that abuts on the first pressing part 24a may be formed of a magnetic material.

[0039] In the above-described embodiment, the exchange frame 80 is transported by the cam follower 84 provided on the outer frame 81 thereof rolling on the second transport surface 42. However, the cam follower 84 may be omitted, and the exchange frame 80 may be transported by sliding on the second transport surface 42.

[0040] In the above-described embodiment, the second transport surface 42 is used for transporting the exchange frame 80 to which the substrate support member 32 is attached. However, as long as the second transport surface 42 is used in the printing machine 10, it may be used for transporting an exchange frame to which another exchange member (for example, squeegee 22) other than the screen mask M is attached. Regarding the transfer of the squeegee 22 to the head body 21 when the squeegee 22 is attached to the exchange frame and transported on the second transport surface 42, for example, the method described in International Publication No. 2018 / 105016 can be used.

[0041] In the above-described embodiment, the first pressing portion 24a of the pusher 24 is adsorbed to the replacement frame 80 which is a frame supporting the substrate support member 32, and the replacement frame 80 is pushed to convey the replacement frame 80. However, the first pressing portion 24a of the pusher 24 may be adsorbed to the replacement frame 70 which is a frame supporting the screen mask M, and the replacement frame 70 may be pushed to convey the replacement frame 70. In this case, a magnet member may be attached to the inner surface of the side portion on the tip side in the direction from the storage rack 60 to the working position, of the two side portions orthogonal to the left side portion and the right side portion of the outer frame of the replacement frame 70. Alternatively, when a magnet member is provided on the first pressing portion 24a of the pusher 24, the surface with which the first pressing portion 24a of the replacement frame 70 abuts may be formed of a magnetic material.

[0042] In the above-described embodiment, the conveying device of the present disclosure has been described by applying it to the printing machine 10. However, as long as it is for conveying the members used in the production line, it may be applied to any other working device.

[0043] As described above, in the conveying device of the present disclosure, after the pressing member (adsorbing portion) adsorbs the object to be conveyed (adsorbed portion), the object to be conveyed is pressed by the pressing member and conveyed to a predetermined position, and after the object to be conveyed is clamped at the predetermined position, the pressing member is retracted from the object to be conveyed. Thereby, the object to be conveyed can be positioned more reliably at the predetermined position.

[0044] In such a conveying device of the present disclosure, the adsorbing portion of the pressing member may be one of a magnet and a magnetic material, and the adsorbed portion of the object to be conveyed may be the other of a magnet and a magnetic material. In this way, the pressing member can be attached to and detached from the object to be conveyed with a simple configuration.

[0045] Further, in the conveying device of the present disclosure, the object to be conveyed may have a roller that rolls on the rail. In this way, the object to be conveyed on the rail can be conveyed smoothly and the object to be conveyed can be positioned more reliably at the predetermined position.

[0046] In the present disclosure, in addition to the form of a conveying device, it can also be in the form of a conveying method or a printing machine.

Industrial Applicability

[0047] The present disclosure can be used in the manufacturing industry of conveying devices and the like.

Explanation of Signs

[0048] 10 Printing machine, 11 Printing machine main body, 12 Housing, 20 Head device, 21 Head main body, 22 Squeegee, 23 Squeegee lifting part, 24 Pusher, 24a First pressing part, 24b Second pressing part, 25 Pusher lifting part, 26 Head moving part, 27 Y-axis slider, 28 Guide rail, 30 Substrate conveying device, 31 Substrate conveying part, 32 Substrate support member, 33 Substrate support member lifting part, 34 Lifting table, 35 Recognition part, 36 Camera main body, 37 Camera moving part, 38 Passage, 39 Detection sensor, 40 Conveying rail, 41 First conveying surface, 42 Second conveying surface, 43 Fixed table, 45 Clamp part, 46 Contact part, 47 Lifting part, 50 Exchange device, 51a Left unit, 51b Right unit, 52 Rack support member, 53 Rack lifting part, 54 Frame front-back moving part, 60 Storage rack, 61 Support rail, 62, 63 Opening, 70, 80 Exchange frame, 81 Outer frame, 81a Left side part, 81b Right side part, 81c Side part, 82 Support arm, 83 Rotation axis, 84 Cam follower, 85 Magnet member, 100 Control device, 101 CPU, 102 ROM, 103 RAM, 104 Storage device, 200 Management device, M Screen mask, S Substrate.

Claims

1. A conveying device comprising a pair of rails extending parallel to the horizontal direction, for conveying an object to be conveyed used in a production line on the pair of rails and positioning it at a predetermined position, a pressing member having a suction portion that sucks the object to be conveyed at a suction portion of the object to be conveyed on a plane orthogonal to the extending direction of the rail, a lifting portion for lifting and lowering the pressing member, a moving portion for moving the pressing member in the extending direction of the pair of rails, a clamping portion for clamping the object to be conveyed on the pair of rails with respect to the pair of rails, a control portion for controlling the lifting portion and the moving portion so that the pressing member descends and the suction portion of the pressing member sucks the suction portion of the object to be conveyed, controlling the moving portion so that the object to be conveyed is conveyed to the predetermined position, controlling the clamping portion so that the object to be conveyed is clamped at the predetermined position, and then controlling the lifting portion and the moving portion so that the pressing member retracts from the object to be conveyed, The conveying device comprising the above.

2. The conveying device according to claim 1, wherein the suction portion of the pressing member is one of a magnet and a magnetic body, and the suction portion of the object to be conveyed is the other of a magnet and a magnetic body. The conveying device.

3. The conveying device according to claim 1 or 2, wherein the object to be conveyed has rollers that roll on the rails. The conveying device.

4. A conveying method for conveying an object to be conveyed used in a production line on a pair of rails extending parallel to the horizontal direction and positioning it at a predetermined position, using the pair of rails and a pressing member, sucking the pressing member to the object to be conveyed on a plane orthogonal to the extending direction of the rail, moving the pressing member in the extending direction of the pair of rails to convey the object to be conveyed to the predetermined position, clamping the object to be conveyed at the predetermined position, and then retracting the pressing member from the object to be conveyed. The conveying method.

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