JP5440797B2 - Immersion processing equipment - Google Patents

Description

  The present invention relates to an immersion treatment facility for performing a surface treatment of a workpiece, the workpiece being fixed and conveyed on the traveling body for conveyance, being vertically inverted together with the traveling body for conveyance, and immersed in a processing bath. is there.

  This type of immersion treatment facility is known as an immersion treatment facility for performing surface treatment of the body of an automobile. That is, as described in Patent Document 1, this type of immersion treatment equipment is rotatable around a treatment bath that immerses a workpiece and surface-treats, and a horizontal support shaft that is oriented across the treatment bath. The rotating table supported by the rotating table, and the rotating table are rotated forward and backward between a standby posture that is substantially horizontal on the processing bath and a reverse posture that is rotated forward and downward from the standby posture. A traveling body guide means is provided on the rotating table for supporting and guiding the traveling body for transportation along the front-rear direction orthogonal to the horizontal support shaft. The vehicle traveling body can be transferred from the ground-side traveling path onto the traveling body guide means of the rotating body in a standby posture. In the configuration described in Patent Document 1, a pallet without wheels is used as a transporting traveling body, and a roller conveyor that slidably supports the pallet as traveling body guiding means on the ground-side traveling path and the turntable. Is used.

Japanese Patent No. 3638283 (Tokuheihei 9-510681)

  In the conventional immersion treatment facility described in Patent Document 1, a treatment bathtub is disposed on the lower side of the travel path of the transport traveling body (pallet), and the turntable from the rear end side of the turntable in a standby posture. After rotating the rotating table with the transport traveling body entered and positioned and fixed, the work is turned upside down with the transport traveling body and immersed in the processing bath, and after the rotating table is returned to the standby position, The transport traveling body is moved forward to advance on the ground side travel path from the front end side of the turntable.

  In a passing-type immersion treatment facility that passes the traveling body for conveyance with respect to such a treatment bath, as described in Patent Document 1, a turntable that is located directly below the center of the entire length of the workpiece (vehicle body) is provided. When rotating around the horizontal support shaft arranged near the front end to shorten the length of the front and rear direction required for the processing bath, the rotating turntable largely protrudes forward with respect to the horizontal support shaft. Therefore, it is connected to the front end side of the turntable so that the turntable does not interfere with the ground-side travel path connected to the front end side of the turntable, specifically the guide rail or roller conveyor. It is necessary to take measures such as escaping the ground-side travel route to the side while the turntable is rotating, resulting in a large equipment cost. In addition, positioning and fixing means for fixing the transport traveling body (pallet) at a fixed position on the turntable is essential. However, in the configuration of the transport traveling body passing type as described above, the positioning and fixing means is provided from the rear side. Since it is necessary to switch from a state where the transport traveling body entering the position is fixed in both the front and rear directions to a state where it can be moved forward, a fixed stopper that simply receives the transport traveling body at a fixed position cannot be used. The positioning and fixing means is also expensive.

  Therefore, it is conceivable that the transfer traveling body gets on and off the turntable on the treatment bath only at one end of the turntable by the forward and backward movement of the transfer traveling body, but is mounted and fixed on the transfer traveling body. In order to perform the immersion treatment on the workpiece sequentially for a plurality of treatment baths with different treatment liquids, a plurality of pieces are provided at appropriate intervals in the direction of the main traveling route alongside the main traveling route of one linear conveyance traveling body. When the processing tubs are arranged, a branch path for moving the traveling traveling body back and forth between the turntable on each processing tub and the traveling path is required, and the transportation tub is transported from one processing tub to the next processing tub. In order to feed the traveling body, it is necessary to change the direction of the traveling body for transportation twice in a right angle direction, and it takes a long time to move between the dipping processes, and the working efficiency is greatly reduced.

  The present invention proposes an immersion treatment facility capable of solving the conventional problems as described above, and the immersion treatment facility according to the present invention according to claim 1 is the same as the embodiment described later. In order to facilitate understanding of the relationship, the reference numerals used in the description of the embodiment are shown in parentheses, and the travel route (2) of the transport traveling body (1) on which the work (W) is mounted and fixed. And processing baths (3, 4) disposed at both ends of the travel path (2), and a transport traveling body transfer path (5, 6) connected at right angles to the travel path (2). And the travel route (5) between the travel route (2) when traveling along the transport route (5, 6) and at the crossing stop position (P1, P2) with the travel route (2). An immersion treatment facility comprising a transport traveling body transfer carriage (7, 8) on which the transport traveling body (1) can be freely transferred, on the processing baths (3,4) at both ends of the travel path (2). In the running A turntable (22, 25) provided with fixing means (24, 25) for fixing the transporting traveling body (1) to which the transporting traveling body (1) can freely transfer between the ends of the road (2). , 23), and the turntable (22, 23) is forward and reverse around a horizontal axis in a direction transverse to the transfer direction of the transport traveling body (1) to and from the travel route (2). The workpiece (W) on the transport traveling body (1), which is freely rotatable, is transferred onto the turntable (22, 23), and the processing bath (3,4) is rotated by the rotation of the turntable (22, 23). It is configured so that it can be dipped inside.

  In carrying out the present invention, specifically, as described in claim 2, as the traveling body transfer path for transportation, the inside of the processing baths (3, 4) at both ends of the traveling path (2) A transport traveling body transfer path (5) dedicated to carrying the transport traveling body for carrying the transport traveling body (1) into the travel path (2) at a position close to the processing tub (3) on the first use side, A transport traveling body transfer path (6) dedicated to unloading the transport traveling body for unloading the transport traveling body (1) from the travel path (2) is provided at a position close to the processing bath (4) on the rear use side. be able to.

  In the case of adopting the above configuration, as described in claim 3, the travel route (2) includes the crossing stop position (P1) of the transport traveling body transfer route (5) dedicated for carrying the transport traveling body. Between the crossing stop position (P2) of the transport traveling body transfer path (6) dedicated to carrying the transport traveling body and the side where the transport traveling body transport path (6) dedicated to unloading the transport traveling body is located A crossing stop position (P1) of the transport traveling body transfer path (5) dedicated to carrying the transport traveling body is also provided with a transport traveling body driving means (21) for transporting the transport traveling body (1) toward First transporter (38) for transferring the transporting traveling body (1) between the transporting traveling body transporting carriage (7) and the rotating base (22) on the first-use processing bath (3). A second feeder (39) for sending out the transport traveling body (1) from the transport traveling body transfer carriage (7) to the drive start position of the transport traveling body drive means (21), and the transport Traveling body drive From the driving end position of the means (21) to the transport traveling body transfer carriage (8) at the crossing stop position (P2) of the transport traveling body transfer path (6) dedicated for carrying out the transport traveling body (3) for feeding between the third feeder (40) for feeding out, and on the carriage (8) for transporting the moving body for transportation and on the turntable (23) on the treatment bath (4) on the rear use side A fourth feeder (41) for transferring the traveling body (1) can be provided.

  Further, as described in claim 4, locked pins (16 a to 17 b) extending in the direction transverse to the traveling direction are installed on the bottom of the transport traveling body (1), and the both processing baths The fixing means (24, 25) of the turntable (22, 23) on the (3,4) is locked by the transfer traveling body (1) on the turntable (22, 23). Positioning member (32a-32d) provided with a recessed portion (34) in which the pins (16a-17b) are fitted in the horizontal direction, and the locked portion in the recessed portion (34) of the positioning member (32a-32d) It can be constituted by a movable movable piece (33a, 33b) for locking that prevents the backward movement of the transport traveling body (1) in a state where the pins (16a to 17b) are fitted.

  According to the configuration of the present invention as set forth in claim 1, the ground-side travel path connected to the rear end of the stand in the stand-by posture is used both as the entrance path and the exit path of the transport traveling body with respect to the turntable. The workpiece-carrying traveling body after the immersion treatment in the processing bath is completed by the rotation of the turntable is configured to move backward from the turntable in the standby position and return to the original ground-side travel route. Since the front end side of the turntable does not have a ground side travel path for retracting the transporting traveling body, when the turntable rotates forward and downward from the standby position, the rear end of the turntable is greatly forwarded. Even if it adopts a configuration in which the turntable is pivotally supported by a horizontal support shaft at a position where it protrudes, that is, a position near the front end, a guide rail or a roller conveyor that constitutes the ground side travel path as in the past Complicated to retract the left and right sides Formation is not necessary to adopt a, simplifies the configuration of the entire apparatus can be inexpensively implemented. In addition, the positioning and fixing means required for the turntable can incorporate a fixed stopper structure for receiving the transport traveling body entering the turntable in the standby position at a fixed position, and the structure of the positioning and fixing means is simple. In this respect, it can be carried out at a low cost.

  Moreover, according to the configuration of the present invention, since the processing baths are disposed at both ends of the travel path of the transport travel body, the transport travel body on the transport travel body transfer path connected to the travel path. If a transport traveling body carrying workpieces is sent into the travel route using a transfer carriage, the transport traveling body on the travel route is simply moved forward and backward on the two treatment baths. The transporting traveling body mounted on the workpiece to be processed after the immersion treatment in the two processing baths is completed by sequentially performing the immersion treatment on the workpiece by rotating the rotating table. It can be sent to the next step by using the transport traveling body transfer carriage on the transport traveling body transport path connected to the travel path. That is, when the transport traveling body is sent from one processing bath to the next processing bath, it is only necessary to reverse the traveling direction of the transport traveling body, and the transport traveling body is turned twice in a right angle direction. Compared with the case where it is necessary, the wasteful movement time between immersion processes can be shortened, and work efficiency can be improved significantly.

  In addition, according to the structure of Claim 2, the traveling body transfer path for conveyance of the traveling body for conveyance to the traveling path which connects two process bathtubs, and the traveling body transfer path for conveyance for unloading, In other words, in a layout that is connected in a straight line, in other words, at a crossing stop position at one location on the travel route, a transport traveling body transfer carriage for transporting the transport traveling body and a transport traveling for unloading the transport traveling body Compared with the layout where the body transport carriage must stop, the work of feeding the transport traveling body to the processing path on the use side from the transport traveling body transport path dedicated to carrying the transport traveling body into the travel path And a traveling path that connects two processing bathtubs, and can simultaneously perform the operation of sending the traveling body for transportation sent out from the processing bathtub on the use side to the traveling body transfer path dedicated for unloading the traveling body for transportation. Transport body for transport to A layout in which the transport traveling body transfer path for carrying in and the transport traveling body transport path for carrying out are in a straight line, that is, transport for carrying the transport traveling body to one crossing stop position on the traveling path. Compared with the layout in which the traveling body transfer carriage for transportation and the transportation traveling body transportation carriage for carrying the transportation traveling body must be stopped, the working efficiency can be greatly increased. Specifically, the configuration described in claim 2 can be easily implemented by adopting the configuration described in claim 3.

  Furthermore, according to the structure of Claim 4, in order to fix the traveling body for conveyance to the turntable of the processing bathtub of the first use side, the fixed part required on the traveling body side for conveyance, and the processing bathtub of the rear use side The fixed part required on the transport traveling body side to fix the transport traveling body to the turntable can be configured with a common locked pin, and the transport travel required for the turntable of each processing bath The structure of the body fixing means is also simplified, and the equipment of the present invention can be implemented at low cost.

It is a top view of the whole installation. It is a side view of the whole equipment. It is a top view which abbreviate | omitted the traveling body main body explaining the structure of the traveling body for conveyance. It is a side view of the principal part of the traveling body for conveyance. It is a front view of the principal part of the traveling body for conveyance. Fig. A is a side view showing a turntable on the processing bath, and Fig. B is a longitudinal side view of a main part showing fixing means for a transporting traveling body with respect to the turntable. It is an enlarged plan view of the principal part which shows the state just before sending the traveling body for conveyance on the turntable of a prior use side processing bathtub. It is an enlarged plan view of the principal part which shows the state which sent the traveling body for conveyance on the turntable of a prior use side processing bathtub. It is an enlarged plan view of the principal part which shows the state which sent the traveling body for conveyance to the drive start position of a driving path from the turntable of a prior use side processing bathtub. It is an enlarged top view of the principal part which shows the state which transferred the traveling body for conveyance to the drive completion position of a travel path same as the above. It is an enlarged plan view of the principal part which shows the state just before sending the traveling body for conveyance onto the turntable of the post-use side processing bath, or the state where the running body for transport is sent out from the turntable of the post-use side processing bath. It is a top view of the principal part explaining the traveling body sending action for conveyance of a 1st feeder. It is a top view of the principal part explaining the traveling body drawing-out action for conveyance of the 1st feeder. It is a top view of the principal part explaining the traveling body drawing-out effect | action of a 2nd feeder for conveyance. It is a cross-sectional top view of the principal part explaining the effect | action of the movable piece for a lock | rock of a fixing means.

  1 and FIG. 2, 1 is a transport traveling body, 2 is a linear travel path on which the transport traveling body 1 travels, 3 is a pre-use side treatment bathtub attached to one end of the travel path 2, and 4 is a travel A post-use side treatment bath 5 provided at the other end of the path 2 5 is a transport traveling body transfer path dedicated to carrying the transport traveling body with respect to the travel path 2, and 6 is dedicated to carrying the transport traveling body from the travel path 2. It is a path | route for conveyance traveling body transfer.

  The transport traveling body transfer path 5 dedicated to carrying the transport traveling body is disposed so that the end of the traveling path 2 adjacent to the first use side processing bath 3 of the traveling path 2 is overlapped at a right angle. On the guide rails 5 a and 5 b constituting the dedicated transfer traveling body transfer path 5, the carry-in dedicated transfer traveling body transfer carriage 7 reciprocates in the direction perpendicular to the travel path 2. The transport traveling body transfer path 6 dedicated to transporting the transport traveling body is disposed so that the starting end overlaps the end portion adjacent to the rear use side processing bath 4 of the traveling path 2 at a right angle. On the guide rails 6 a and 6 b constituting the dedicated transport traveling body transfer path 6, the unloading dedicated transport traveling body transport carriage 8 reciprocates perpendicularly to the travel path 2. Note that the two traveling body transfer paths 5 and 6 for transportation are disposed on opposite sides of the traveling path 2.

  As shown in FIGS. 3 to 5, the transport traveling body 1 includes a pair of front and rear wrinkle-free wheels 9 a and 9 b that roll on the guide rail 2 a on one side of the guide rails 2 a and 2 b constituting the travel path 2. And a pair of front and rear hooked wheels 10a, 10b provided with hooks that roll on the other guide rail 2b and sandwich the guide rail 2b, and support a work (vehicle body) W on the upper surface. A plurality of workpiece support bases 11 and a plurality of workpiece fixtures 12 for fixing the workpiece W to the transporting traveling body 1. The left and right sides are driven to project sideways from the front and rear ends. Plates 13a, 13b and 14a, 14b, and locked members 15a, 15b that are located substantially in the center of the length in the front-rear direction and protrude downward are disposed. Further, a pair of left and right locked pins 16a and 16b are installed on the bottom of the transport traveling body 1 so as to be adjacent to the inside of the pair of front left and right wheels 9a and 10a, and the pair of rear left and right wheels 9b, A pair of left and right locked pins 17a and 17b is installed at a position closer to the inner side than the right rear of the pair of left and right locked pins 16a and 16b on the inner side of 10b. All of these latched pins 16a to 17b are respectively constructed in a horizontal direction between a pair of left and right support plates 18a and 18b.

  Hereinafter, in more detail based on FIG. 6 to FIG. 11, a chain conveyor for reciprocally driving the traveling body transfer carriage 7 for carrying-in dedicated transport is used in the traveling-body transport path 5 for carrying-in transportation only. A carriage driving means 19 is also provided, and the carriage 7 for carrying-in transport for carrying in, which is driven by the carriage driving means 19 to the traveling path 2 side, is automatically at the loading-side crossing stop position P1 that intersects the traveling path 2 at a right angle. Stop. In addition, a carriage drive means 20 using a chain conveyor for driving the carriage 8 for carrying only the carry-out transport in a reciprocating manner is provided in the path 6 for transporting the carrying body for carrying-out only by the carriage driving means 20. The carrying-only transporting carriage transfer carriage 8 that is driven to travel toward the traveling path 2 can be automatically stopped at the unloading-side crossing stop position P2 that intersects the traveling path 2 at a right angle. Thus, as shown in FIGS. 8 to 10, the carry-only transport traveling body transfer carriage 7 and the carry-only transport traveling body transfer carriage 8 travel when stopped at the crossing stop positions P <b> 1 and P <b> 2. Guide rails 7a, 7b and 8a, 8b that are connected at the same height as the pair of left and right guide rails 2a, 2b of the path 2 are laid. The travel path 2 includes a chain with a pusher for driving the transport traveling body 1 toward the unloading-side crossing stop position P2 between the loading-side crossing stop positions P1 and the unloading-side crossing stop position P2 at both ends. A conveyor traveling means driving means 21 using a conveyor is also provided.

  On the pre-use side treatment bath 3 and the post-use side treatment bath 4, turntables 22 and 23 that rotate the fed traveling body 1 are provided. On these turntables 22 and 23, the guide rails 7a and 7b on the carriage 7 for carrying only the carrying-in transport stopped at the carrying-in-side crossing stop position P1 and the carrying-out-side crossing stopping position P2 and the carry-out dedicated carrying are carried out. Guide rails 22a, 22b and 23a, 23b connected to the guide rails 8a, 8b on the traveling body transfer carriage 8 via short relay fixed guide rails 2c, 2d and 2e, 2f constituting the terminal of the traveling path 2. , And fixing means 24 and 25 for fixing the fed transport traveling body 1 at a fixed position. Note that the setting positions of the carry-in side crossing stop position P1 and the carry-out side crossing stop position P2 or the lengths of the guide rails 7a to 8b on the carrying-only transfer traveling body transfer carriage 7 and the carry-only carrying running body transfer carriage 8 are set. , The guide rails 7a to 8b and the turntable 22 on the traveling body transfer carriage 7 for carrying only for carrying in and the traveling body transferring carriage 8 for carrying only for carrying out are omitted. , 23 on the guide rails 22a to 23b on the conveyor 23 can be configured to be directly transferable.

  The turntables 22 and 23 are supported by bearings 26 and 27 so as to cross the processing baths 3 and 4 in the horizontal direction perpendicular to the transfer direction of the transfer traveling body 1 on the turntables 22 and 23. The rotary shafts 30 and 31 supported and linked to the motors 28 and 29 with reduction gears are supported at positions near the front end on the side far from the crossing stop positions P1 and P2, and the forward and reverse rotations of the rotary shafts 30 and 31 are performed. Thus, it is possible to perform forward and reverse rotation between a horizontal standby posture shown by a solid line in FIG. 2 and a reverse posture rotated in a direction in which the front end is lowered slightly by 180 degrees shown by a virtual line in FIG.

  The fixing means 24, 25 provided on each turntable 22, 23 are composed of four locking plates 32a-32d protruding on the turntables 22, 23 and a pair of left and right lock movable pieces 33a, 33b. It is configured. Each of the locking plates 32a to 32d is disposed at a position overlapping the four locked pins 16a to 17b of the transport traveling body 1 sent to the fixed positions on the rotary tables 22 and 23. , 23, when the transport traveling body 1 is sent to a fixed position, the four locked pins 16a to 17b at the bottom of the transport traveling body 1 are horizontally fitted, and the upper side in the moving direction of the transport traveling body 1 is released. And a recessed portion 34 (see FIG. 6B). The movable movable pieces 33a and 33b are for preventing the transport traveling body 1 from moving backward from the fixed positions on the turntables 22 and 23. As shown in FIGS. A pair of left and right locked members 15a and 15b of the body 1 is pivotally supported by a vertical support shaft 35 so as to be freely disengageable with respect to a pair of left and right locked members 15a. Yes. The lock movable pieces 33a and 33b are disposed on the processing baths 3 and 4 so as to be adjacent to the left and right sides of the turntables 22 and 23 when the turntables 22 and 23 are in the horizontal standby posture. The operated pin 36 is operated by operating levers of a pair of operating means 37a and 37b, and can be switched between a locked posture shown by a solid line and an unlocked posture shown by a virtual line in FIG. It can be held.

  As shown in FIG. 1, the traveling path 2 is transported between the traveling-only transporting traveling body transfer carriage 7 located at the loading-side crossing stop position P <b> 1 and the turntable 22 of the first-use processing tank 3. The first feeder 38 for transferring the traveling body 1 and the driving of the traveling body driving means 21 provided in the traveling path 2 are started from above the carriage 7 for carrying-only transportation traveling body located at the carry-in crossing stop position P1. The second feeder 39 for feeding the transport traveling body 1 to the position and the transport end position of the transport traveling body driving means 21 to the unloading dedicated transport traveling body transfer carriage 8 located at the unloading-side crossing stop position P2. Travel for transportation between the third feeder 40 that feeds the travel body 1 and the transport body 8 for the transport body for transporting only for unloading located at the unloading-side crossing stop position P2 and the turntable 23 of the post-use side treatment bath 4 Change body 1 Fourth feeder 41 is provided that.

  As shown in FIG. 7, the first feeder 38 includes a pusher unit 38 a that acts on the driven plate 14 a among the driven plates 13 a, 13 b and 14 a, 14 b included in the transport traveling body 1. The pusher unit 38a reciprocates between the solid line in FIG. 7 and the backward limit position BP shown in FIG. 12 and the imaginary line in FIG. 7 and the advance limit position FP shown in FIG. As shown, the first pusher 42 that feeds the transporting traveling body 1 through the driven plate 14a and the second pusher 43 that pulls the transporting traveling body 1 back through the driven plate 14a undulates the reciprocating body 44 horizontally and horizontally. Along with freely supporting the shaft, tension springs 45 and 46 for biasing and holding the pushers 42 and 43 in a working posture standing sideways are provided. Further, a cam plate 47 that switches the first pusher 42 to the retracted position against the urging force of the tension spring 45 is provided at the retreat limit position BP. Although not shown, the reciprocating body 44 is reciprocated by an actuator such as a cylinder unit.

  As shown in FIG. 7, the second feeder 39 includes a pusher unit 39 a that acts on the driven plate 14 b among the driven plates 13 a, 13 b and 14 a, 14 b included in the transport traveling body 1. The pusher unit 39a reciprocates between a backward limit position BP indicated by a solid line in FIGS. 7 and 14 and an advance limit position FP indicated by a virtual line in FIGS. 7 and 14, respectively. As described above, the pusher 48 that pulls out the transporting traveling body 1 via the driven plate 14b is pivotally supported by the reciprocating body 49 so as to be able to undulate horizontally and laterally, and the pusher 49 is urged and held in an acting posture in which the pusher 49 stands sideways. A spring 50 is provided.

  As shown in FIG. 10, the third feeder 40 includes a pusher unit 40 a that acts on the driven plate 13 a among the driven plates 13 a, 13 b and 14 a, 14 b included in the transport traveling body 1. 41 has the pusher unit 41a which acts with respect to the driven plate 13b among the driven plates 13a, 13b and 14a, 14b with which the traveling body 1 is provided. The third feeder 40 is obtained by changing the direction of action of the second feeder 39 to the driven plate in the reverse direction, and the fourth feeder 41 has the same structure as the first feeder 38. Description is omitted.

  The method of using the immersion treatment facility according to one embodiment of the present invention having the above-described configuration will be described. At the start end position of the traveling-body transfer path 5 for carrying-in only for carrying-in, the carrying-in with the same structure as the traveling path 2 and the reverse traveling direction is performed. A right-angle traveling route 51 for loading, which includes guide rails 51 a and 51 b for supporting and guiding the traveling body 1 for transportation and a traveling body driving means 52 for transporting the traveling body 1 for transportation. The transfer traveling body 1 sent out from the carry-in travel route 51 can be transferred onto the carry-only transport travel body transfer carriage 7 on the carry-in dedicated transport travel body transfer route 5. it can. A workpiece W to be dipped is mounted and fixed on the transport traveling body 1 using a workpiece support 11 and a workpiece fixture 12. Thus, the carrying-only transport traveling body transfer carriage 7 on which the transport traveling body 1 has been transferred is moved to the carry-in crossing stop position P1 on the travel path 2 by the carriage driving means 19, as shown in FIG. The vehicle travels and automatically stops, and the guide rails 7a and 7b on the carrying-only carriage 7 for carrying-in dedicated transport are connected to the guide rails 2a and 2b on the travel path 2 side.

  When the carriage 7 for carrying-in transport only stops at the carry-in crossing stop position P1, the pusher unit 38a of the first feeder 38 stands by at the retreat limit position BP. As shown in FIG. 12, the driven plate 14a of the transport traveling body 1 on the carriage 7 is fitted inside the second pusher 43 of the pusher unit 38a. In this state, when the reciprocating body 44 of the first feeder 38 is driven and the pusher unit 38a starts to move forward from the backward limit position BP, the first pusher 42 of the pusher unit 38a moves away from the cam plate 46 and operates from the retracted posture. Switching to the posture starts to boost the driven plate 14a of the traveling body 1 for conveyance. In this way, the pusher unit 38a of the first feeder 38 pushes the transport traveling body 1 on the transporting body 7 for transporting the transporting body dedicated for transporting that is stopped at the transport-side crossing stop position P1, so that the transport The traveling body 1 is sent out toward the pre-use side processing tub 3 and is in a connected state via the guide rails 7a and 7b on the traveling body transfer carriage 7 for carrying-in dedicated transport and the fixed guide rails 2c and 2d for relay. When transfer is made to the guide rails 22 a and 22 b on the turntable 22 and the pusher unit 38 a reaches the advance limit position FP shown in FIG. 13, the transport traveling body 1 is sent to a predetermined position on the turntable 22.

  As shown in FIGS. 6 and 8, the transport traveling body 1 sent to a predetermined position on the turntable 22 by the pusher unit 38 a of the first feeder 38 is rotated by the fixing means 24 included in the turntable 22. Fixed on top. That is, since the four locked pins 16a to 17b at the bottom of the transport traveling body 1 are fitted into the recessed portions 34 of the four locking plates 32a to 32d on the turntable 22, as shown in FIG. 6B. Thereafter, the operating means 37a and 37b are operated, and the operated pins 36 of the pair of left and right lock movable pieces 33a and 33b are operated by the operation lever, so that both lock movable pieces 33a and 33b are virtually shown in FIG. The lock release posture indicated by the line is switched to the lock posture indicated by the solid line in FIG. 15, and the movable movable pieces 33 a and 33 b are engaged with the rear sides of the locked members 15 a and 15 b on the left and right sides of the transport traveling body 1. As a result, the transport traveling body 1 is prevented from moving forward from the fixed position on the turntable 22 by the locking plates 32a to 32d, and the transport traveling body 1 is moved on the turntable 22 from the fixed position. The rearward movement is blocked by the locking movable pieces 33a and 33b. Further, even if the turntable 22 rotates 180 degrees around the rotation shaft 30 and the transport traveling body 1 moves to the lower side of the turntable 22, the transport traveling body 1 has four locked pins 16a to 16a. 17b and the four locking plates 32a to 32d on the turntable 22 side are suspended from the turntable 22, and the posture with respect to the turntable 22 can be maintained.

  As described above, when the transport traveling body 1 is fixed at a fixed position on the turntable 22 by the fixing means 24, the rotary shaft 30 is rotationally driven by the motor 28 with a speed reducer, as shown by a virtual line in FIG. 6A. Then, the turntable 22 is rotated by a predetermined angle (for example, about 185 degrees) in the forward and downward direction, the transport traveling body 1 is inverted together with the work W mounted and fixed thereon, and the processing liquid in the processing bath 3 is placed in the processing liquid. Can be dipped. Further, if necessary, the inverted turntable 22 can be swung back and forth within a predetermined angle range, and the work W can be swung in the processing liquid.

  If the immersion process with respect to the workpiece | work W in the prior use side processing bathtub 3 is completed, the turntable 22 will be rotated and returned to the original horizontal standby posture. At this time, the driven plate 14a of the transport traveling body 1 fixed at a fixed position on the turntable 22 by the fixing means 24 is the first of the pusher unit 38a waiting at the advance limit position FP of the first feeder 38. The second pushers 42 and 43 are fitted. In this state, the operating means 37a and 37b are operated, and the operated pins 36 of the pair of left and right locking movable pieces 33a and 33b are operated by the operating lever, so that both the locking movable pieces 33a and 33b are shown by solid lines in FIG. Return to the original unlocked posture from the lock posture shown. As a result, the transport traveling body 1 on the turntable 22 returns to the state in which the reverse travel is possible from the turntable 22, so that the pusher unit 38a of the first feeder 38 that has been waiting at the advance limit position FP is moved backward. When it is moved backward toward the limit position BP, as shown by the phantom line in FIG. 13, the second pusher 43 of the pusher unit 38a propels the transport traveling body 1 through the driven plate 14a. By carrying out the backward movement to the original backward limit position BP, the carrying traveling body 1 on the turntable 22 is waiting on the carrying-in crossing stop position P1 as shown in FIG. It can be pulled back to a fixed position on the transfer carriage 7.

  Next, as shown in FIG. 14, when the pusher unit 39a of the second feeder 39 is moved from the retreat limit position BP to the advance limit position FP, the pusher 48 is moved immediately before the pusher unit 39a reaches the advance limit position FP. The driven plate 14b of the transport traveling body 1 falls to the temporarily retracted posture against the tension spring 50, passes through the position of the driven plate 14b, and stops at the advance limit position FP in a state of returning to the working posture. Subsequently, by moving the pusher unit 39a backward from the advance limit position FP toward the reverse limit position BP, the pusher 48 of the pusher unit 39a travels for conveyance via the driven plate 14b as shown by a virtual line in FIG. Since the body 1 is propelled, when the pusher unit 39a returns to the original retreat limit position BP, the transporting traveling body 1 is stopped at the loading-side crossing stop position P1. As shown in FIG. 9, the vehicle is sent from above to the travel route 2 and reaches the drive start position by the transport traveling body drive means 21 on the travel route 2.

  Thereafter, the transport traveling body driving means 21 is operated to cause the transport traveling body 1 to travel toward the post-use side treatment bathtub 4 on the travel path 2. On the other hand, the transporting carriage 7 for carrying only the carry-in on the carry-in crossing stop position P <b> 1, which is emptied when the carrying travel body 1 travels to the travel route 2 side, transports the next workpiece W to be processed. In order to receive the traveling body 1, the carriage driving means 19 can be moved back to the starting end position of the traveling body transporting path 5 for carrying-in dedicated transport.

  As shown in FIG. 10, the transport traveling body 1 traveling on the travel path 2 toward the post-use side processing bathtub 4 is sent to the driving end position by the transport traveling body driving means 21 and stopped. At this time, the driven plate 13a of the transport traveling body 1 is stopped at a position beyond the retreat limit position BP of the pusher unit 40a of the third feeder 40, and an empty carry-only transport is carried to the carry-out crossing stop position P2. Next, since the traveling body transfer carriage 8 is stopped, the pusher unit 40a of the third feeder 40 is moved forward from the backward limit position BP toward the advanced limit position FP, thereby being conveyed by the pusher unit 40a. The traveling body 1 is sent out toward an empty carrying-only transport traveling body transfer carriage 8 that is waiting at the unloading-side crossing stop position P2.

  When the pusher unit 40a of the third feeder 40 reaches the advance limit position FP, the transport traveling body 1 sent out by the pusher unit 40a waits at the carry-out side crossing stop position P2, as shown in FIG. It reaches a fixed position on the traveling body transfer carriage 8 for carrying-out only for carrying out. At this time, the positional relationship between the driven plate 13b of the transport traveling body 1 and the pusher unit 41a standing by at the backward limit position BP of the fourth feeder 41 is the carry-in crossing stop position described based on FIG. This is the same as the positional relationship between the driven plate 14a of the transport traveling body 1 and the pusher unit 38a of the first feeder 38, which is fed into the P1 by the transporting body transport carriage 7 dedicated for loading. Therefore, after this, similarly to the immersion treatment of the workpiece W on the transport traveling body 1 in the pre-use side processing bath 3, the pusher unit 41a of the fourth feeder 41 is used for transferring the transporting body for transporting only for carrying out. The transport traveling body 1 on the carriage 8 is fed onto the turntable 23 of the post-use side treatment bath 4, and the transport traveling body 1 is fixed at a fixed position on the turntable 23 by the fixing means 25. An immersion process is performed on the workpiece W that is rotated and mounted and fixed on the transport traveling body 1, and then the transport traveling body 1 is stopped from the turntable 23 by the pusher unit 41 a of the fourth feeder 41. It is possible to perform a series of operations until returning to the carriage 8 for transporting the carrying body for carrying-out only for carrying out at the position P2.

  The transport traveling body 1 carrying the immersion-treated work W returned to the transport body 8 for transporting the transporting body dedicated for transporting waiting at the unloading-side crossing stop position P2 is transported for transporting the transporting body dedicated for transporting. By operating the carriage driving means 20 of the path 6 for carrying out, the traveling body transporting carriage 8 for carrying only for carrying out travels from the carrying-out crossing stop position P2 to the terminal position of the carrying body 6 for carrying out carrying only for carrying out, It can be carried out to the terminal position of the traveling body transfer path 6 for carrying-out dedicated transport together with the carrying body 8 for transporting the carrying body dedicated to carrying-out.

  In addition, as shown by a virtual line in FIG. 1, at the terminal position of the traveling body transfer path 6 for carrying-out only for carrying-out, the carrying-out traveling path 53 having the same structure as the traveling path 2 and having the opposite traveling direction, that is, carrying An unloading travel path 53 provided with guide rails 53a and 53b for supporting and guiding the traveling body 1 and a traveling body drive means 54 for driving the traveling body 1 is connected at a right angle. The traveling body 1 for conveyance carrying the work W that has been dipped can be sent out from the traveling path 53. Finally, the unprocessed work W is mounted and fixed on the empty transporting traveling body 1 from which the immersion-treated work W has been lowered, and the transporting traveling body 1 is transported to the loading travel path shown in FIG. By feeding into 51, the traveling body 1 for conveyance can be circulated and used.

  Moreover, although the immersion treatment equipment using the two treatment baths 3 and 4 has been described, when configuring the immersion treatment equipment using three or more treatment baths, as shown by phantom lines in FIG. An additional processing bath 55 is installed so that the starting end of the traveling-body transfer path 5 for carrying-in dedicated transport is sandwiched between the traveling path 51 for carrying-in, and the terminal portion of the traveling-body transporting path 6 dedicated for carrying-out is carried out. The processing bathtub 56 can be additionally installed so as to be sandwiched between the traveling route 53 for use. In this case, the relationship between the traveling path 51 for carrying in, the processing bath 55, and the traveling body transfer path 5 for carrying only for loading is as follows: the traveling path 2, the post-use side processing bathtub 4, and the traveling body transferring path 6 for carrying only for unloading. Similarly, the feeder corresponding to the 3rd feeder 40 and the 4th feeder 41 is provided side by side, and the relationship between the traveling body transfer path 6 for carrying out for exclusive use, the processing tub 56, and the traveling path 53 for carrying out is similar. Corresponds to the relationship between the carrying-only transport traveling body transfer path 5, the pre-use side processing bath 3, and the traveling path 2, and therefore a feeder corresponding to the first feeder 38 and the second feeder 39 is also provided. Thus, the transporting traveling body 1 loaded with the work W that has been immersed in the processing bath 55 is fed into the first use processing bath 3 and the work W that has been immersed in the rear use processing bath 4 is mounted. The conveying traveling body 1 can be fed to the processing bath 56.

  As described above, the traveling routes of the transport traveling body 1 each having the treatment tubs disposed at both ends are arranged in parallel so that the traveling directions of the transport traveling body 1 are alternately reversed, and By connecting the end portion and the start end of the next travel path by the path of the transport traveling body transporting carriage that supports the transport traveling body 1 and transports it at right angles and lateral directions, the necessary number of processing baths can be connected. Thus, the workpieces W mounted on the transport traveling body 1 can be sent in order, and the immersion process for the workpieces W can be performed in order.

  In addition, the carry-only transport travel body transfer path 5 and the transport travel body for carrying the transport travel body 1 into the travel path 2 of the transport travel body 1 provided with the treatment baths 3 and 4 at both ends, respectively. 1 for carrying out the transporting body 6 for carrying out the carry-out for carrying out the transporting unit 1 separately from both ends of the running route 2. 6 can be provided so as to be continuous with each other. In this case, it is also possible to configure so that one common transport traveling body transfer carriage travels from the carry-only transport travel body transfer path 5 to the carry-only transport travel body transport path 6. Alternatively, the carrying-only transport traveling body transfer path 5 and the unloading dedicated transport traveling body transport path 6 may be disposed so as to be connected to an intermediate position between both ends of the traveling path 2.

  Further, the traveling-body transfer path 5 for carrying-in dedicated transport and the traveling-body transporting path 6 dedicated for carrying-out transportation are connected so as to be continuous with each other, and the traveling-body transporting path 5 for carrying-in dedicated transport and the carrying-only transport for carrying out are connected. It is also possible to arrange the pre-use side treatment tub 3 and the post-use side treatment tub 4 in a distributed manner on both sides of the connection location with the traveling body transfer path 6. In this case, the travel path 2 provided with the transport traveling body drive means 21 is not necessary, and the transport path between the transport traveling body transfer carriage and the top 22 of the first use side processing bath 3 is transported. A first feeder 38 and a second feeder 39 for transferring the traveling body 1, and a third feeder 40 for transferring the traveling body 1 for transportation between the transporting traveling body transfer carriage and the other rear-use processing bath 4. And the area | region where the traveling body 1 for conveyance is drive-driven by the 4th feeder 41 becomes the driving | running route 2. FIG. However, as in the above-described embodiment, the travel path 2 of the transport traveling body 1 having the treatment baths 3 and 4 disposed at both ends is given an appropriate length, and the transport path 2 is used for transporting only for loading at both ends. When the traveling body transfer path 5 and the carry-only transport traveling body transport path 6 are arranged in a distributed manner, the work other than the dipping process for the workpiece W on the traveling body 1 is placed in the middle of the traveling path. You can also set and use the area.

  The immersion treatment equipment of the present invention is a process of performing the surface treatment before or after painting on the vehicle body by inverting the vehicle body of the automobile fixed and conveyed on the conveyance traveling body together with the conveyance traveling body. It can be used as an immersion treatment apparatus that is immersed in a bathtub and performs surface treatment of the vehicle body.

DESCRIPTION OF SYMBOLS 1 Traveling body for conveyance 2 Traveling path 3 Processing tub for the front use side 4 Processing tub for the rear use side 5 Traveling path for transporting the transporting body dedicated to carrying-in 6 Traveling path for transporting the transporting body dedicated to carrying out 7 8 Carriage for transporting body for carrying-out only for unloading 13a-14b Driven plates 15a, 15b Locked members 16a-17b Locked pins 19, 20 Carriage driving means 21, 52, 54 Transporting body driving means 22, 23 Rotating table 24, 25 Fixing means 28, 29 Motor with reduction gear 30, 31 Rotating shaft 32a-32d Locking plate 33a, 33b Movable piece for locking 37a, 37b Operating means 38-41 Feeder 38a-41a Pusher unit 51 Carrying path 53 Unloading travel path 55, 56 Processing bath P1 Loading side crossing stop position P2 Unloading side crossing stop position

Claims (4)

  A traveling path of a transport traveling body on which a work is mounted and fixed, treatment baths provided at both ends of the traveling path, a transport traveling body transfer path connected perpendicularly to the traveling path, and the transport Immersion comprising a transport traveling body transfer carriage that travels on the traveling path for transporting and can be transferred to and from the traveling path when the traveling path is at a crossing stop position with the traveling path. Fixing means for fixing the transporting traveling body, which is a processing facility, on the processing baths at both ends of the traveling path, so that the transporting traveling body can be transferred to and from the end of the traveling path. A turntable is provided, and this turntable is rotatable forward and backward around a horizontal axis in a direction transverse to the transfer direction of the transport traveling body between the turntable and on the turntable. The work on the transporting body that has been transferred Configured to be immersed in the processing bath by rotation of the rolling stand, dip treatment facilities.   As the transport traveling body transfer path, the transport traveling body dedicated to carrying the transport traveling body is carried into the travel path at a position close to the processing bath on the first use side among the processing baths at both ends of the travel path. A traveling body transfer path, and a transport traveling body transfer path dedicated to unloading the traveling body for carrying out the traveling body from the traveling path at a position close to the processing bath on the rear use side are provided. Item 2. The immersion treatment facility according to Item 1.   The travel path includes the transport between the crossing stop position of the transport travel body transfer path dedicated for carrying the transport travel body and the cross stop position of the transport travel body transport path dedicated for transporting the transport travel body. The transport traveling body drive means for transporting the transport traveling body toward the side where the transport traveling body transport path dedicated for carrying the transport traveling body is provided is provided, and the transport traveling body transport path dedicated for carrying the transport traveling body is provided. A first feeder for transferring the transport traveling body between the transport traveling body transfer carriage at the crossing stop position and the rotating base on the first use side processing bath; and on the transport traveling body transport carriage A second feeder that feeds the transport traveling body from the drive end position of the transport traveling body drive means to a transport traveling body transfer path dedicated to unloading the transport travel body For transporting the crossing stop position Transfer the traveling body between the third feeder that feeds the traveling body for transportation to the carriage for transporting the body and the rotating carriage on the transportation body for transportation and the processing tub on the post-use side. The immersion treatment facility according to claim 2, wherein a fourth feeder is provided.   At the bottom of the transport traveling body, a locked pin is installed in a direction transverse to the travel direction, and the fixing means of the turntables on both treatment tubs is used for transporting on the turntables. A positioning member provided with a recessed portion in which the locked pin is fitted in the horizontal direction by the body transfer, and a retreat of the traveling body for conveyance in a state where the locked pin is fitted in the recessed portion of the positioning member. The immersion treatment equipment according to any one of claims 1 to 3, wherein the immersion treatment equipment includes a movable piece for locking that prevents movement.

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