JP2008050062A - Carrying device for carried object and removing method for carried object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely release the engagement state of a hanger and lifting fittings provided in a carried object without using energizing force of a tension spring. <P>SOLUTION: The hanger 9 for engagement of the carried object comprises a support rod 9a hung on a carrying chain via a carrying body and a hanging body; a pair of the hanging rods 9b having base end parts rotatably journaled to the support rod 9a; oblong and annular engagement tools 9c provided in the tip parts of the pair of the hanging rods 9b and engaged with the lifting fittings provided in the inner peripheral face of the carried object; communication parts 9d formed by cutting part of one long edge parts of the engagement tools 9c and communicating inside with outside of the engagement tools 9c; and window-shaped swelling parts 9e extended from the communication parts 9d of the engagement tools 9c toward the directions opposing to each other in the state orthogonal to the engagement tools 9c. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a removal apparatus and a removal method for automatically removing a transfer object from a hanger in a transfer apparatus that transfers the transfer object while being hung on a hanger.

  Conventionally, for example, when coating is performed on an object to be transported that is hung on a hanger provided on a transport device such as a chain conveyor (for example, a bottomed cylindrical case used for electrical equipment such as a transformer) The transporting device is disposed so as to pass through the coating booth, and the coating is performed by spraying the coating material from the spray gun onto the outer peripheral surface of the transported object transported at a predetermined speed by the transporting device. I have to. In addition, the object to be transported that has finished painting in the painting booth is transported into the baking drying furnace by the transporting device, and baking drying is performed.

  In the case where the object to be transported that has been painted and baked and dried as described above is automatically removed from the hanger, for example, a table lifter as described in Patent Document 1 has been used. The table lifter includes a base fixed to a floor surface and the like, a lift table connected to the base via a link, and rising to a predetermined height with the base as a starting point when the electric motor is started, and on the lift table A rotating table that is attached and rotates within a predetermined angle range upon activation of the electric motor, and a roller that is mounted on the rotation table and places the object to be conveyed, and that conveys the object to be conveyed upon activation of the electric motor. It is schematically configured with a conveyor. Further, the hanger for latching the object to be transported includes a pair of suspension rods provided with an annular latch at the tip, and a support rod for pivotally supporting the base end portion of the suspension rod. And a tension spring which is stretched between the pair of suspension rods and urges the suspension rods in directions opposite to each other.

  When the object to be conveyed that is hung on the hanger is automatically removed from the hanger using the table lifter having the above structure, the object to be conveyed hung on the hanger is conveyed to a predetermined position. Then, the lifting table starts to rise, so that the object to be conveyed is placed on the roller conveyor while being hung on the hanger, and the lifting table continues to rise to a predetermined height position. Thus, the latched state between the object to be transported and the hanger is released using the biasing force of the tension spring provided on the hanger. Subsequently, the object to be transported, which has been released from the state of being hung with the hanger, is rotated by a predetermined angle in a predetermined direction by a rotary table, and after the lifting table is lowered to its lower limit position, the next process is performed by a roller conveyor. It was going to be carried out to.

JP 2006-143437 A

  However, when the transported object that has been painted and baked and dried as described above is automatically removed from the hanger using a table lifter, the hanger resists the biasing force of the tension springs. In an expanded state, an annular hook provided at the tip of the suspension rod is engaged with a hanging metal fitting provided on the inner peripheral surface of the object to be conveyed. When the paint adheres to the tension spring and the paint dries and solidifies by baking and drying, the tension spring does not shrink (that is, the pair of suspension rods are urged in a direction opposite to each other to contract. As a result, even if the lifting table is raised to a predetermined height while the object to be transported is placed on a roller conveyor, the engagement between the latch and the hanging bracket is difficult. Question that we cannot cancel There was.

  In addition, since the object to be conveyed is placed on the roller conveyor while being hooked on the hanger, the object to be conveyed does not move while being placed on the roller conveyor. Since it always moves in the advancing direction at a predetermined speed by driving, the hanger and the object to be conveyed while the lifting table continues to rise to a predetermined height position after the object to be conveyed is placed on the roller conveyor. The relative distance from the inner peripheral wall surface of the hanger is reduced (that is, the hanger and the inner peripheral wall surface of the object to be conveyed positioned in the traveling direction side of the hanger are close to each other), and the object to be conveyed is determined in a predetermined direction by the rotary table. When the angle is rotated, there is a possibility that the hook of the hanger and the hanging bracket provided on the object to be transferred are engaged again.

  In view of the various problems described above, the present invention can release the engagement between the hanger and the hanging bracket provided on the object to be transported without using the biasing force of the tension spring. When the transported object is rotated by a predetermined angle in a predetermined direction in a state where the engagement with the hanging bracket provided on the transported object is released, the hanger and the transported object are provided along with the movement of the hanger. It is an object of the present invention to provide a transporting device for a transported object and a method for removing the transported object that can prevent the hanging bracket from re-engaging.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a hanger for hanging an object to be conveyed suspended from a conveying chain, and an object to be conveyed conveyed to a predetermined position as the conveying chain is driven. And a hanger with a table lifter for releasing the transferred object from the hanger, the hanger includes a transfer body and a suspension body on the transfer chain. A pair of suspension rods pivotally supported by the support rod, and a pair of suspension rods pivotally supported by the support rods, and provided at the distal ends of the pair of suspension rods. It is formed by cutting out a part of one of the long side portions of the vertically long hanging hook engaging with a hanging metal fitting provided on the peripheral surface, and the inside and outside of the hanging hook. From the communicating part that communicates and the communicating part of each of the above-mentioned latching tools, in a state perpendicular to the latching tool It is in toward opposite directions, characterized by being configured a extended the window-like bulged portion.

  The invention according to claim 2 is a roller conveyor in which the table lifter is raised when it is detected that the object to be conveyed that is hooked on the hanger has been conveyed to a predetermined position, and the object to be conveyed is provided on the table lifter. In this state, the object to be transported is lifted to a predetermined height with the lifting operation of the table lifter, and the latch provided on the hanger and the inner periphery of the object to be transported are placed on the pallet. The step of releasing the engagement with the hanging bracket provided on the surface, and the hanger is advanced by the roller conveyor in the state where the engagement between the hanger latch and the hanging bracket of the transferred object is released. The relative distance between the inner peripheral wall surface of the object to be transported and the hanger is kept constant, and the relative position between the inner peripheral wall surface of the object to be transported and the hanger is kept at a constant distance. In the state, the transported object A step of rotating a predetermined angle in a predetermined direction by a rotary table provided in the table lifter, a lowering of a transported object rotated by a predetermined angle in the predetermined direction to a predetermined height position by the table lifter, and the next step The method includes a step of unloading and a step of returning the origin by rotating the rotation table by a predetermined angle in a predetermined direction after unloading the transferred object to the next step.

  According to the first aspect of the present invention, the hanger for hanging the object to be conveyed is supported by the supporting rod suspended from the conveying chain via the conveying member and the suspension member, and the base end portion is rotated by the supporting rod. A pair of suspension rods pivotally supported, a vertically long annular latch provided at a tip end portion of the suspension rod, and engaged with a suspension fitting provided on an inner peripheral surface of the object to be conveyed; Formed by cutting out a part of one long side of the stopper, a communication part that communicates the inside and the outside of the latch, and a communication part of each of the latches, and orthogonal to the latch Since the window-shaped bulging portion that extends in the direction facing each other is provided, the latching tool is engaged with the hanging bracket of the object to be conveyed with the front end side expanded. When the engagement between the hook and the hanging bracket is released, the pair of hanging rods are contracted in a direction opposite to each other using the weight of the bulging portion extending from the hook. As a result, it is possible to release the engagement between the latch and the hanging bracket without using the urging force of the tension spring as in the prior art, so that the object to be conveyed can be reliably and reliably removed from the hanger. Can be removed.

  According to the second aspect of the present invention, the lifting bracket provided on the inner peripheral surface of the transported object is engaged with the hook of the hanger by lifting the transported object to a predetermined height position by the table lifter. Is released, and is in a state of being aligned (facing directly) to the communicating portion and the bulging portion provided on the hook, and the hanger is advanced by a roller conveyor equipped with the object to be conveyed on a table lifter. Since the relative distance between the hanger and the inner peripheral wall surface of the object to be conveyed is kept constant by moving the object in the direction for a predetermined time, in this state, when the object to be conveyed is rotated in the predetermined direction by a predetermined angle, As a result, the hanging metal fitting located in the hook of the hanger passes through the communication portion and the bulging portion provided in the hooking device. In the released state, the object to be conveyed is rotated by a predetermined angle in a predetermined direction. If that, the bracket hanging and the locking member can be reliably prevented from being engaged again.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS. The difference between the present invention and the prior art is that a hanger that hangs the object to be conveyed does not use a tension spring that contracts the hanger in a direction opposite to each other, and the object to be conveyed is a table. When rotating with the rotary table provided in the lifter, the relative distance between the object to be transported and the hanger is kept constant.

  First, FIG. 1 is a schematic configuration diagram showing a transport apparatus for a transported object in the present invention. In FIG. 1, reference numeral 1 denotes a transport device including a chain conveyor for transporting a transported object 2 (see FIG. 5) in a suspended state, and the transport device 1 is installed in a building (not shown), for example. A plurality of transport bodies 6 (only one is shown in FIG. 1) suspended from the rail 3 via a roller 4 and fixed to a transport chain 5 provided alongside the rail 3 at a predetermined interval. And a suspended body 7 rotatably attached to the transport body 6 via, for example, a bearing (not shown) and the object 2 to be transported suspended from the suspension body 7 via a hook 8. And a hanger 9 for use.

  Next, the configuration of the hanger 9 will be described with reference to FIGS. In FIGS. 1 and 2, 9a is an inverted T-shaped support rod suspended from a suspension body 7 via a hook 8, and 9b and 9b are pivotally supported by the support rod 9a so that a base end portion can be rotated. It is a pair of hanging rods. Reference numeral 9c denotes a vertically long annular hook that is attached to the tip of the hanging rod 9b and engages with a hanging metal fitting 2a (see FIG. 5) provided on the inner peripheral surface of the object 2 to be conveyed. One long side portion (for example, the right side in FIG. 3) of the stopper 9c is formed with a communication portion 9d that connects the inside and the outside of the stopper 9c by cutting away a part thereof. Reference numeral 9e denotes a window-like bulged portion integrally extending from the communicating portion 9d of the latching tool 9c in a direction perpendicular to the latching tool 9c. 4, different long side portions in the respective latching devices 9c (for example, in the case of the left side latching device 9c shown in FIG. 2, the long side portion on the near side, in the right side latching device 9c shown in FIG. From the long side part on the back side, it extends in a misplaced direction toward each other.

  Then, the pair of hanging hooks 9b, 9b of the hanger 9 is engaged with the hook 9c and the hanging bracket 2a provided on the article 2 to be conveyed by manually expanding the tip side thereof, When the engagement between the hook 9c and the hanging bracket 2a is released, the pair of hanging hooks 9b and 9b are opposed to each other by using the weight of the bulging portion 9e extending from the hook 9c. It is configured to automatically contract in the direction. In addition, the pair of suspension rods 9b, 9b are extended from a latch 9c attached to the tip of the transported object 2 as shown in FIG. Due to the weight of the bulging portion 9e, the balance is maintained with the tip side slightly opened.

  Next, in FIG. 5, reference numeral 11 a denotes a first detection unit configured to detect that the article to be conveyed 2 has been conveyed to a predetermined position by driving the conveyance chain 5. The first detection unit 11a can detect, for example, the suspension body 7 that suspends the hanger 9 at a predetermined position in the transport direction of the transported object 2 (the traveling direction of the hanger 9). The light projecting unit and the light receiving unit are arranged in a state of facing each other with the rail 3 and the transport chain 5 interposed therebetween as shown in FIG. The first detection means 11a uses a limit switch or the like instead of using a photoelectric transmission sensor, and the object to be conveyed 2 is conveyed to a predetermined position by contact with the roller 4, the conveyance body 6 and the like. May be detected.

  Reference numeral 12 denotes a table lifter for releasing the hooked state between the transported object 2 and the hanger 9 at a predetermined position and removing the transported object 2 from the hanger 9. The table lifter 12 is connected to a base 13 fixed to a floor surface or the like, and is connected to the base 13 via a link 13a (see FIG. 6), and the base 13 is used as a base point when the electric motor 14 (see FIG. 16) is started. A lifting table 15 that rises to a predetermined height position, a rotating table 17 that is mounted on the lifting table 15 and rotates within a predetermined angle range upon activation of the electric motor 16 (see FIG. 16), and the rotating table 17 And a roller conveyer 19 for mounting the object to be conveyed 2 and conveying the object to be conveyed 2 to the next process when the electric motor 18 (see FIG. 16) is activated.

  In FIG. 5, reference numeral 20 denotes a plate-like pallet supplied from a pallet supply device (not shown) on the roller conveyor 19, and the article 2 to be conveyed is placed on the roller conveyor 19 via the pallet 20. In FIG. 5, reference numeral 21 denotes an L-shaped stopper attached to the rotary table 17, and the stopper 21 includes an end portion of the roller conveyor 19 positioned on the traveling direction side (left side in FIG. 5) of the hanger 9. It is attached to the opposite part in a state maintaining a predetermined distance from the end of the roller conveyor 19. As shown in FIG. 5, the tip of the long side portion of the stopper 21 is extended to a height position at which it can be opposed to the pallet 20 supplied on the roller conveyor 19.

  Further, in FIG. 5, 11 b is arranged on the table lifter 12, and detects the raised position of the table lifter 12 by detecting the bottom side surface of the conveyed object 2 that is hooked on the hanger 9. The second detection means 11b is a state in which the light projecting part and the light receiving part are opposed to each other across the roller conveyor 19, as shown in FIG. Thus, it is attached to the lifting table 15 of the table lifter 12 via the mounting seat 22. As shown in FIG. 5, the second detection means 11 b is attached to the attachment seat 22 in a state of being slightly above the upper end surface of the pallet 20 supplied on the roller conveyor 19.

  Next, in FIG. 16, reference numeral 23 denotes a control device configured to drive and control the table lifter 12, for example, a programmable controller. As illustrated in FIG. 16, the input terminals I <b> 1 to I <b> 6 of the control device 23 include 1st, 2nd detection means 11a, 11b, 3rd, 4th detection means 11c, 11d which are arrange | positioned in the predetermined position of the table lifter 12, and detect the origin position and rotation position of the rotation table 17, Similarly, fifth detection means 11e that is disposed at a predetermined position of the table lifter 12 and detects the lower limit position of the lifting table 15, and the table lifter 12 in the traveling direction of the hanger 9 (conveying direction of the object 2), for example. Sixth detection means 11f (for example, a photoelectric transmission type) that is disposed at a predetermined position in front of the hanger 9 and detects whether or not the object 2 is hooked on the hanger 9. Are connected to each other, and at the output ends O1 to O3, an electric motor 14 for driving the lifting table 15, an electric motor 16 for driving the rotary table 17, and an electric motor 18 for driving the roller conveyor 19 are respectively provided. It is connected.

  The control device 23 has a program (see FIG. 17) for driving and controlling the motors 14, 16, and 18 based on the detection signals output from the first to sixth detection units 11a to 11f. , Pre-installed. Further, when the transported object 2 is detected by the first detecting means 11a, it is necessary to provide the sixth detecting means 11f for detecting whether or not the transported object 2 is hooked on the hanger 9. There is no. Further, the sixth detection means 11f is disposed on the table lifter 12 itself instead of being disposed at a predetermined position before the table lifter 12 in the traveling direction of the hanger 9 (conveying direction of the object 2). You may do it.

  Next, the operation of the present invention will be described by way of an example in which the transported object 2 that has been painted and baked and dried is removed from the hanger 9 using the table lifter 12. The transported object 2 includes a hook 9c that is manually extended at the distal ends of the pair of suspension rods 9b, 9b of the hanger 9 and attached to the distal ends of the suspension bodies 9b, 9b. By being engaged with a constricted portion of a hanging metal fitting 2 a provided on the inner peripheral surface of the conveyed object 2, the hanger 9 is hooked.

  First, the transported chain 5 is driven to transport the object to be transported 2 that has been painted and baked and dried to a predetermined position while being hung on the hanger 9. As shown in FIG. 5, for example, the hanger 9 is suspended. When the holding body 7 being held is detected by the first detection means 11a (see step S1 in FIG. 17), it is determined whether or not the object to be conveyed 2 is hooked on the hanger 9 (see FIG. 17). 17 step S2). That is, the hanger 9 is hooked by the sixth detection means 11f (see FIG. 16) disposed at a predetermined position in front of the table lifter 12 in the traveling direction of the hanger 9 (the transport direction of the transported object 2). If the transported object 2 has been detected in advance, the motor 14 (see FIG. 16) is activated by a command from the control device 23, and the lifting table 15 of the table lifter 12 starts to rise (step S3 in FIG. 17). reference). Further, if the transported object 2 is not detected in advance by the sixth detection means 11f, the table lifter 12 is not activated.

  Subsequently, as the elevating table 15 rises, the second detection means 11b attached to the elevating table 15 via the attachment seat 22 is hooked on the hanger 9 as shown in FIG. When the bottom side surface of the transported object 2 just before being placed on the conveyor 19 via the pallet 20 is detected (see step S4 in FIG. 17), a predetermined time elapses after the detected transported object 2 is detected. The elevating table 15 continues to rise (see steps S5 and S6 in FIG. 17). Note that, as the lifting table 15 is raised, the second detection means 11b detects the bottom side surface of the transported object 2 almost simultaneously with the transported object 2 having the rotary table 17 on the lifting table 15. Is mounted via a pallet 20 at a substantially central position of the roller conveyor 19 attached via the pallet 20.

  And as mentioned above, in the state which mounted the to-be-conveyed object 2 on the roller conveyor 19 via the pallet 20, the raising / lowering table 15 continues a raise for a predetermined time, The internal peripheral surface of the to-be-conveyed object 2 The suspension fitting 2a provided on the upper side of the vertically long annular hook 9c attached to the tip of the suspension rod 9b of the hanger 9 is shown in FIG. 7 (b) from the state shown in FIG. 7 (a). (To a height position that matches the communicating portion 9d and the bulging portion 9e), the engagement between the constricted portion and the hook 9c is released. Thereby, the pair of hanging hooks 9b, 9b of the hanger 9 is contracted and closed in a direction opposite to each other by utilizing the weight of the bulging portion 9e extending from the hook 9c attached to the tip portion thereof, The hooked state between the transported object 2 and the hanger 9 is released (see FIG. 8).

  Subsequently, when a predetermined time elapses after the second detection means 11b detects the bottom side surface of the conveyed object 2, the electric motor 14 (see FIG. 16) is stopped by an instruction from the control device 23, and the lift table 15 is stopped (see steps S6 and S7 in FIG. 17). The predetermined time may be measured by a timer (not shown) provided in the control device 23, for example. In addition, for example, the communication portion 9d and the bulging portion 9e provided on the hook 9c of the hanger 9 and the hanging metal fitting 2a provided on the inner peripheral surface of the transported object 2 coincide with each other for the predetermined time (facing). What is necessary is just to set it as the time required to raise the raising / lowering table 15 to the height position to perform.

  As described above, the transported object 2 does not move in the traveling direction of the hanger 9 (left direction in FIG. 8) by being placed on the roller conveyor 19 via the pallet 20. Since the hanger 9 is always moved to the left in FIG. 8 at a predetermined speed by driving the transport chain 5, the transported object 2 is placed on the roller conveyor 19 through the pallet 20 as described above. When the lifting table 15 continues to rise, as shown in FIG. 8, the distance between the inner peripheral wall surface of the article 2 to be conveyed located on the traveling direction side of the hanger 9 and the hanger 9 is shortened, and the article to be conveyed The relative distance between the inner peripheral wall surface of the object 2 and the hanger 9 cannot be kept constant.

  For this reason, in this invention, after stopping the raising of the raising / lowering table 15, the electric motor 18 (refer FIG. 16) is started by the command from the control apparatus 23, the roller conveyor 19 is driven for a predetermined time, and the said roller conveyor 19 The transferred object 2 placed on the pallet 20 is moved in the moving direction of the hanger 9 (left direction in FIG. 8), and the electric motor 18 is stopped by a command from the control device 23 when a predetermined time has elapsed. Then, the driving of the roller conveyor 19 is stopped (see steps S8 to S10 in FIG. 17). As a result, as shown in FIG. 9, the relative distance between the inner peripheral wall surface of the transported object 2 and the hanger 9 can be kept constant. In addition, what is necessary is just to time the drive time of the said roller conveyor 19 with the timer etc. which were equipped in the control apparatus 23, for example. In addition, as shown in FIG. 9, for example, the driving time includes a stopper 21 attached to the rotary table 17 in a state of facing the end of the roller conveyor 19 positioned on the traveling direction side of the hanger 9, and an object to be conveyed. What is necessary is just to set it as the time required for 2 to contact | abut with the pallet 20 in which 2 was mounted.

  Subsequently, after the object 2 is moved in the traveling direction of the hanger 9 by the roller conveyor 19 as described above, the electric motor 16 (see FIG. 16) is started by a command from the control device 23, and the table lifter 12 The rotation table 17 is rotated in a predetermined direction. When the fourth detection means 11d (see FIG. 16) detects that the rotation table 17 has rotated a predetermined angle (for example, 90 °), the motor 16 is stopped by a command from the control device 27. Then, the rotation of the rotation table 17 is finished (see step S11 in FIG. 17). When the rotation table 17 is rotated as described above, the hanger 9 includes the rotation restriction plate 25 fixed to the suspension body 7 that holds the hanger 9, and the rotation restriction plate 25. Due to the contact with the rotation restricting guides 26 arranged at the corresponding positions, the rotation is prevented, so that the rollers are mounted on the roller conveyor 19 mounted on the rotating table 17 via the pallet 20. Only the placed object 2 is rotated (see FIG. 11).

  Further, as described above, when the rotation table 17 is rotated by a predetermined angle in a predetermined direction, the hanging bracket 2a provided on the inner peripheral surface of the object to be transported 2 is attached to the hanger 9 as shown in FIGS. The engagement with the latching tool 9c is released, and the communication part 9d and the bulging part 9e provided in the latching tool 9c are in a state of being aligned (facing directly), and the hanger 9 and the transported part are conveyed. The relative distance between the object 2 and the inner peripheral wall surface is maintained at a constant distance as shown in FIG. 9, and in this state, the rotating table 17 is moved in a predetermined direction, for example, a counterclockwise indicated by an arrow in FIG. When it is rotated by a predetermined angle in the direction, as shown by a one-dot chain line in FIG. 10, the hanging metal fitting 2a positioned in the hook 9c of the hanger 9 is connected to the communication portion 9d provided on the hook 9c and Passing through the protruding portion 9e, it is not located at a predetermined angle (for example, 90 °) as shown by a two-dot chain line in FIG. The state. As described above, while the rotation table 17 is rotated in a predetermined direction by a predetermined angle, the hanger 9 moves at a predetermined speed in the left direction in FIG. 9, as shown in FIG. 9, the hanging bracket 2 a provided on the inner peripheral surface thereof matches the communication portion 9 d and the bulging portion 9 e provided on the hook 9 c of the hanger 9 (facing directly), and Since the rotation starts from a state in which the relative distance between the hanger 9 and the inner peripheral wall surface is kept constant, the hanging bracket 2a engages with the latch 9c and the bulging portion 9e during the rotation. In addition, since the suspended fitting 2a, the hook 9c, and the bulging portion 9e are displaced by a predetermined angle even after the transported object 2 is rotated, the hanger 9 is moved. Accordingly, the suspension fitting 2a does not engage with the hook 9c and the bulging portion 9e.

  Subsequently, when the object to be conveyed 2 is rotated by a predetermined angle (for example, 90 °) by rotating the rotation table 17 as described above, the motor 14 (see FIG. 16) is turned on by a command from the control device 23. It starts and lowers the raising / lowering table 15 (refer step S12 of FIG. 17). At this time, as shown in FIG. 11, one of the hanger 9 (located on the traveling direction side) of the hanger 9 comes into contact with the inner peripheral wall surface of the conveyed object 2 as the hanger 9 moves and is inclined. In this state, the hook 9c and the bulging portion 9e of the hanger 9 and the hanging metal fitting 2a provided on the inner peripheral surface of the transported object 2 are displaced by a predetermined angle, and the transported object 2 Since the hooked state between the hanger 9 and the hanger 9 is released, there is no problem in hindering the lowering operation of the lifting table 15. Then, as shown in FIGS. 12 and 13, when the fifth detecting means 11e (see FIG. 16) detects that the elevating table 15 has been lowered to the lower limit position (see step S13 in FIG. 17), the control device 23. The motor 14 is stopped by the command from, and the lowering of the lifting table 15 is stopped (see step S14 in FIG. 17).

  When the elevating table 15 is lowered to the lower limit position, the motor 18 (see FIG. 16) is started by a command from the control device 23, the roller conveyor 19 is rotated for a predetermined time, and on the roller conveyor 19 as shown in FIG. As shown in FIG. 14, the object to be conveyed 2 placed via the pallet 20 is carried out to the conveyance conveyor 24 side of the next process connected to the roller conveyor 19. When a predetermined time has elapsed, the electric motor 18 is stopped by a command from the control device 23, the rotation of the roller conveyor 19 is stopped, and the unloading work of the transported object 2 is completed (see step S15 in FIG. 17). The predetermined time may be measured by a timer (not shown) provided in the control device 23, for example. In addition, the predetermined time may be a time necessary for surely carrying out the article 2 to be conveyed from the roller conveyor 19 side to the conveyance conveyor 24 side of the next process connected thereto.

  After the object to be transported 2 is carried out to the transport conveyor 24 side of the next process, the electric motor 18 (see FIG. 16) is activated by a command from the control device 23, and the roller conveyor 19 is reverse to the time of unloading the object to be transported 2. Rotate in the direction for a predetermined time, and the pallet 20 is supplied onto the roller conveyor 19 from a pallet supply device (not shown). When a predetermined time has elapsed, the motor 18 is stopped by a command from the control device 23, the rotation of the roller conveyor 19 is stopped, and the supply operation of the pallet 20 is completed (see step S16 in FIG. 17). The predetermined time may be measured by a timer (not shown) provided in the control device 23, for example. The predetermined time may be a time necessary for reliably supplying the pallet 20 onto the roller conveyor 19 from a pallet supply device (not shown), for example.

  Subsequently, when the pallet 20 is supplied onto the roller conveyor 19 as described above, the electric motor 16 (see FIG. 16) is activated by a command from the control device 23, and the rotation table 17 is rotated in the opposite direction. Let Then, the third detecting means 11c (see FIG. 15) indicates that the turning table 17 has turned a predetermined angle (for example, 90 °) from the turning position shown in FIG. 12, and has returned to the origin position as shown in FIG. 16) is detected, the motor 16 is stopped by a command from the control device 23, and the rotation of the rotation table 17 is stopped (see step S17 in FIG. 17). Thereafter, when the transported object 2 is automatically removed from the hanger 9, the above operation (steps S1 to S17 in FIG. 17) may be repeated.

  As described above, in the present invention, the hanger 9 that holds the article 2 to be conveyed is provided with the inverted T-shaped support rod 9a suspended through the hook 8 and the base end portion of the support rod 9a. A pair of suspension rods 9b, 9b that are pivotally supported, and a vertically long annular shape that is provided at the tip of the suspension rod 9b and that engages with a suspension fitting 2a provided on the inner peripheral surface of the conveyed object 2. A hook 9c, a communication portion 9d formed by cutting a part of one long side portion of the hook 9c, and connecting the inner side and the outer side of the hook 9c, and the communication portion 9d. Since it has a window-like bulging portion 9e extending in a direction orthogonal to the hook 9c, the engagement between the hook 9c and the hanging bracket 2a is released. Then, the pair of suspension rods 9b and 9b are opposed to each other using the weight of the bulging portion 9e extending from the hook 9c. Automatically becomes possible to contraction closed to this result, in good releasing the hooking state between the conveyed object 2 and the hanger 9, the conveyed object 2 can be removed reliably from the hanger 9. In addition, since the pair of suspension rods 9b, 9b can be contracted in a direction facing each other without using a tension spring as in the prior art, the tension spring is applied when the object to be conveyed 2 is coated as in the prior art. When the paint adhering to the material is baked and dried, the paint is dried and solidified, and the tension spring is prevented from shrinking, thereby causing a problem that the engagement between the hook 9c and the hanging bracket 2a is not released. Can be surely prevented.

  Further, as shown in FIG. 1, the pair of suspension rods 9b and 9b are provided at the distal ends of the pair of suspension rods 9b and 9b, although the distal end sides thereof cannot be completely shrunk. The latching tool 9c is formed by cutting out a part of one long side thereof, and a communication part 9d that communicates the inside and the outside of the latching tool 9c, and the latching tool 9c from the communication part 9d. And a window-like bulging portion 9e extending in a direction opposite to each other in a state orthogonal to each other, the transported object 2 is lifted to a predetermined height position by the table lifter 12, and the pair of After releasing the engagement between the hooks 9c provided at the front ends of the suspension rods 9b and 9b and the suspension fitting 2a provided on the inner peripheral surface of the object to be conveyed 2, the object to be conveyed 2 is moved in a predetermined direction. When rotating by a predetermined angle, the hanging bracket 2a located in the latch 9c is provided on the latch 9c. Since the pass through the passing portion 9d and the bulging portion 9e, and the hanging bracket 2a and latching member 9c is there is no such thing as engage again.

  Further, the object to be conveyed 2 is lifted to a predetermined height position by the table lifter 12, and the engagement between the hanging bracket 2 a of the object to be conveyed 2 and the hook 9 c of the hanger 9 is released. Is rotated in a predetermined direction by a predetermined angle, the roller conveyor 19 of the table lifter 12 is driven for a predetermined time, and the transported object 2 is moved in the advancing direction of the hanger 9, whereby the hanger 9 and the transported object 2 are moved. Since the relative distance from the inner peripheral wall surface of the object is kept constant, when the object to be conveyed 2 is rotated by a predetermined angle in a predetermined direction, the hanging bracket 2a and the hanger 9 provided on the object to be conveyed 2 It can prevent reliably that the provided latching tool 9c and the bulging part 9e engage.

  In the embodiment of the present invention, the suspension body 7 that suspends the hanger 9 is rotatably attached to the transport body 6, but the transported object 2 that is hooked on the hanger 9. , For example, if it is merely transported from a predetermined place to a predetermined place, it is not necessary to attach the suspension body 7 to the transport body 6 so as to be freely rotatable. There is no need to provide the guide 26.

It is a schematic block diagram which shows an example of the conveying apparatus of the to-be-conveyed object in this invention. It is a perspective view which shows the hanger of a conveying apparatus. It is a side view which expands and shows the principal part of a hanger. It is a bottom view which shows a hanger. It is operation | movement explanatory drawing which shows the state which detected the suspension body by the 1st detection means. It is operation | movement explanatory drawing which shows the state which detected the bottom part side surface of the to-be-conveyed object by the 2nd detection means. (A) is a side view showing an enlarged state of engagement between the hanger latch and the object to be transported, and (b) is an engagement between the hanger latch and the object to be transported. It is a side view which expands and shows the state released. It is operation | movement explanatory drawing which shows the state which raised the to-be-conveyed object in the state mounted in the table lifter, and cancel | released latching with a hanger. It is operation | movement explanatory drawing which shows the state which moved the to-be-conveyed object to the advancing direction of a hanger, and made the relative distance of the inner peripheral wall surface of a to-be-conveyed object and a hanger a fixed distance. It is an expansion perspective view which shows operation | movement of the hanging metal fitting at the time of rotating a to-be-conveyed object with a table lifter. It is operation | movement explanatory drawing which shows the state which rotated the table lifter. It is operation | movement explanatory drawing which shows the state which lowered the table lifter. It is operation | movement explanatory drawing which shows the state before carrying a to-be-conveyed object to the next process. It is operation | movement explanatory drawing which shows the state which carried the to-be-conveyed object to the next process. It is operation | movement explanatory drawing which shows the state which returned the table lifter to the origin position. It is a schematic block diagram which shows an example of the control apparatus which drives and controls a table lifter. It is a flowchart which shows an example of the removal operation | movement of the to-be-conveyed object from the hanger in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveying device 2 Conveyed object 2a Hanging metal fitting 9 Hanger 9a Supporting rod 9b Suspension rod 9c Hook 9d Communication part 9e Expansion part 12 Table lifter 15 Lifting table 17 Turning table 19 Roller conveyor 20 Pallet 21 Stopper 23 Control apparatus

Claims (2)

  A hanger for hanging the object to be conveyed suspended from the conveying chain, and the object to be conveyed and the hanger conveyed to a predetermined position by driving the conveying chain are released, and the object to be conveyed is released. In the apparatus for transporting an object to be transported comprising a table lifter for removing the hanger from the hanger, the hanger is supported on a transport chain via a transport body and a suspension body; A pair of suspension rods pivotably supporting the portion, and a vertically long annular hook that engages with a suspension fitting that is provided at the tip of the pair of suspension rods and is provided on the inner peripheral surface of the object to be conveyed. Formed by cutting off a part of one long side portion of the stopper and the one of the stoppers, a communication part communicating the inside and the outside of the stopper, and a communication part of each of the stoppers, A window-like bulge extending in a direction perpendicular to each other in a state orthogonal to the hook; Conveying apparatus of the transported object, characterized by being configured with. The table lifter is raised when it is detected that the object to be conveyed that is hung on the hanger has been conveyed to a predetermined position, and the object to be conveyed is placed on a roller conveyor provided in the table lifter via a pallet. In this state, the object to be conveyed is lifted to a predetermined height position with the lifting operation of the table lifter, and a hanging tool provided on the hanger and a hanging metal fitting provided on the inner peripheral surface of the object to be conveyed In a state where the engagement is released and the engagement between the hanger latch and the hanger of the object to be conveyed is released, the object to be conveyed is moved by the roller conveyor in the advancing direction of the hanger for a predetermined time, The step of maintaining the relative distance between the inner peripheral wall surface of the transferred object and the hanger at a constant distance, and the relative position between the inner peripheral wall surface of the transferred object and the hanger being maintained at a fixed distance, Built in table lifter A step of rotating a predetermined angle in a predetermined direction by a rotating table; a step of lowering a transported object rotated by a predetermined angle in the predetermined direction to a predetermined height position by a table lifter; A method for removing the object to be conveyed, comprising the step of returning the origin by rotating the rotation table by a predetermined angle in a predetermined direction after carrying the object to the next process.

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