JPH0615392A - Stack pin holder circulating device in heat exchanger assembling device - Google Patents

Abstract

PURPOSE:To provide a stack pin holder circulating device for assembling a heat exchanger which fully automatically insert a pipe. CONSTITUTION:The device is provided with a collecting pallet 27 on which plural stack pin holders on which stack pins are set and many fins are laminated are mounted in parallel. The device is also provided with a circulating path 26 including a transfer position B and an import position C for the collecting pallets, a carrying path 30 by which a pallet which carries the stack pin holders one by one is circulated between the transfer position and a pipe inserting part corresponding to point B on the circulating path and the import position corresponding to point C on the circulating path, a transfer device 25 by which the stack pin holders are transferred one by one from the collecting pallet at joint B to the pallet on the carrying path and an import device by which the empty stack pin holders from which the fins inserted with the pipes at the pipe inserting part are removed at point D are successively transferred to the collecting pallet at point C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stack pin holder circulating device in a heat exchanger assembling device.

[0002]

2. Description of the Related Art As shown in FIG. 18, a heat exchanger assembling apparatus inserts a U-shaped bent pipe 11 into a pipe insertion hole of a fin 10 in which a large number of sheets are laminated with a constant gap therebetween. Is expanded and the fin 10 is fixed to the pipe 11. The ends of the plurality of pipes 11 are appropriately connected by a U-shaped connecting pipe (not shown),
The heat medium is made flowable. An automatic assembly device for this heat exchanger assembly device has been developed. As shown in FIG. 19, the pipe inserting device in the conventional automatic assembling device inserts the stack pin 12 into a large number of fins 10 and stacks and supports the large number of fins 10 on a stack pin holder 13. As shown in FIG. 20, the fins 10 in this stacked state are placed horizontally on the support base 14, and the pipe 11 held by the guide 15 is laterally pressed by the pusher 16 to be inserted into the pipe insertion hole of the fin 10. 11 is inserted.

[0003]

With the above arrangement, the pipe 11 can be automatically inserted into the pipe insertion hole of the fin 10. However, the above device has the following problems. That is, the pipe 11 is generally made of a copper material having good heat conduction. However, since the copper material is soft, the pipe 11 having a length of about 1 m is inserted into the fin 10 from the lateral direction as described above. Pipe 11 due to gravity
Especially the tip side of the
Since it was difficult to guide with 5, the tip of the pipe 11 could not be accurately aligned with the pipe insertion hole of the fin 10, and it was often impossible to insert it. Further, the fins 10 stacked on the stack pin holder 13 are placed horizontally on the support base 14 as shown in FIG. 20, and the fins 10 are aligned with the upper surface of the support base 14 as a reference plane. Since there are variations in the width in the manufacturing process, when a large number of stacked fins are placed horizontally on the upper surface of the support base 14, the pipe insertion hole positions of the respective fins 10 are displaced vertically, and therefore the pipe 11 is inserted. In this case, there is a problem that the tip of the pipe 11 is caught on the edge of the pipe insertion hole and the pipe 11 cannot be inserted or the pipe insertion hole is deformed. Also, the fin 10
Is formed by processing an aluminum sheet, and there is a problem that the fins 10 are easily deformed when the fins 10 having a large number of laminated layers are horizontally placed on the upper surface of the support base 14.

Therefore, according to the present invention, in the heat exchanger assembling apparatus which solves the above problems by inserting the pipe from above, the heat exchange that enables the pipe insertion to be fully automated by suitably circulating the stack pin holder. An object of the present invention is to provide a stack pin holder circulation device in a container assembly device.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, stack pins vertically erected on the stack pin holder are inserted, and a large number of fins are stacked on the stack pin holder at predetermined intervals and bent in a U-shape from above into pipe insertion holes. In a circulation device for the stack pin holder in a heat exchanger assembling apparatus having a pipe insertion part for inserting a pipe, a plurality of stack pin holders in which the stack pins are erected and a plurality of fins are stacked are placed in parallel. A stacking pallet, a circulation path for circulating the stacking pallet at a position including a stack pin holder transfer position and a stack pin holder transfer position, and a circulation pallet capable of transporting the stack pin holders one by one, A transfer position corresponding to the transfer position of the stack pin holder of the circulation path, the pipe pushing portion, and the star of the circulation path. A circulating pallet transfer path that circulates between transfer positions corresponding to the transfer position of the cup pin holder, and one stack pin holder from the stacking pallet at the stack pin holder transfer position of the circulation path. A transfer device that transfers to a circulation pallet on the circulation pallet transfer path corresponding to the transfer position, and a fin into which the pipe is inserted while the pipe is inserted by the pipe insertion part and is transferred on the circulation pallet transfer path. Are removed and become empty, and the stack pin holders are sequentially transferred to the stacking pallet at the stack pin holder transfer position one by one from the circulating pallet transferred to the transfer position corresponding to the stack pin holder transfer position of the circulation path. It is characterized in that it is provided with a transfer device. The circulation path includes a stacking position at which a stack pin holder transferred to the stacking pallet is supplied with fins separately manufactured by an appropriate press device, and the stacking pins are inserted into the fins to stack a large number of sheets. It is suitable to do so. It is preferable that a support hole into which a finger pin can be inserted is formed on the front surface of the stack pin holder, and the transfer device and the transfer device are provided with a finger pin that is inserted into the support hole and lifts the stack pin holder. Further, it is preferable that the transfer device and the transfer device are provided with a pressing protrusion that comes into contact with the upper surface of the stack pin holder when the stack pin holder is lifted.

[0006]

From the stacking pallet on which a plurality of stack pin holders, each of which has a plurality of fins stacked and stacked, is inserted from the stacking pin holder, the stacking pin holders are sequentially transferred one by one on the circulating pallet transfer path. It is transferred to a circulation pallet and conveyed on the transfer path. The pipe is inserted from above into the pipe insertion hole of the fin by the pipe insertion device provided in the middle of the transfer path. The fin device in which a predetermined number of pipes are inserted is discharged from the stack pin holder in the middle of the transfer path, and the empty circulating pallet is still conveyed on the transfer path.
At the transfer position, the transfer device sequentially transfers the transfer pallets one by one. Since the pipe is thus inserted into the pipe insertion hole from above, the stack pin holder can be conveyed with the stack pin standing upright, and the stack pin holder can be easily circulated. That is, one stack pin holder can be taken out from the stacking pallet in which a plurality of stack pin holders having fins are stacked and transferred to the circulation pallet, and the fin device is ejected to become an empty stack pin holder. It is possible to easily transfer the holder from the circulation pallet to the stacking pallet which has been emptied by the transfer of the stack pin holder. When the stack pin holder transferred to the stacking pallet is supplied with fins separately manufactured by an appropriate press machine and the stack pin is inserted into the fins to stack a large number of stacking parts, the fins are stacked, Circulation of stack pin holder and automation of pipe insertion are possible.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Figure 1 shows a heat exchanger (fin device)
The top view of the whole assembly apparatus is shown. In the figure, 20 is a fin manufacturing unit, which is a press 21 and a remote cutting device 2.
2 is provided. In the pressing machine 21, the aluminum sheet wound around the roll is pulled out, and is pressed, and is continuously processed into a plurality of rows of fins 24 having pipe insertion holes 23 and the like as shown in FIG. Remote cut device 22
Then, the fins 24 formed in the plurality of rows are separated and cut into each row, and the fins 24 in each row are cut into a predetermined length. In FIG. 1, reference numeral 26 is a circulation path for the accumulating pallet 27. As shown in FIG. 3, the collecting pallet 27 has
A plurality of stack pin holders 29 with the stack pins 28 planted at predetermined positions are placed.

In the circulation path 26 of the stacking pallet 27, at the position A, the fins 24 cut to a predetermined length by the remote cutting device 22 are pushed into the stack pins 28, and the stack pins on each stack pin holder 29. 28
The fins 24 are stacked on the stack pin holder 29 with the pipes inserted through the pipe insertion holes 23. The fins 24 are stacked in two rows on each stack pin holder 29. At the position B (stack pin holder transfer position) of the circulation path 26, the stack pin holder 29 on the stacking pallet 27 is transferred one by one on the circulation conveyor 30 (circulation pallet transfer path) by the transfer device 25 described later. It is transferred onto the circulating pallet 31 (FIG. 18). The stack pin holder 29 transferred onto the circulation conveyor 30 is circulated on the circulation conveyor 30, and a pipe is inserted into the fins 24 as described later during this period. The stack pin holder 29 that has been taken out and emptied is sequentially transferred to the circulation pallet 31 on the circulation conveyor 30 at the position B, and is emptied to become the position C on the circulation unit 26 ( The corresponding circulating pallets 3 on the circulating conveyor 30 are transferred onto the stacking conveyor 27 moving to the transfer position) by the transfer device having the same structure as the transfer device.
By sequentially returning the stacking pallet 27, which has been transferred from No. 1 and thus the stack pin holder 29 has been transferred, to the position A, the stacking pallet 27 and each stack pin holder 29 are circulated and the work is continuously performed. Of.

Next, in FIG. 1, 50 and 51 are pipe insertion devices. The pipe insertion devices 50 and 51 are arranged along the path of the circulation conveyor 30. In this way, two pipe insertion devices are arranged in the vicinity of the pipe insertion device 50 after the predetermined number of pipes are inserted into the pipe insertion holes of the fins 24 by the pipe insertion device 50 in the preceding stage. The stack pin 28 is removed by the stack pin extracting / inserting device 54.
Is pulled out from the stack pin holder 29, and then the pipe is inserted into the remaining predetermined number of pipe insertion holes including the pipe insertion hole 23 after the stack pin 28 is pulled out by the pipe insertion device 51 in the subsequent stage. . When the diameter of the pipe to be inserted is 7.0 mm, the diameter of the pipe insertion hole of the fin 24 is set to about 7.3 mm and the diameter of the stack pin is set to about 7.1 mm, so that the pipe can be inserted more easily. . The fin device thus assembled by inserting the pipes is taken out in the inverted state by the reversing device 52 onto the conveyor 53 at the final position D on the outward path of the circulation conveyor 30 and conveyed to a pipe expanding device (not shown). The pipe is expanded by a known mechanism. At the final position D, the fin device is taken out, and the empty stack pin holder 29 is moved in the return path of the circulation conveyor 30 as described above, during which the stack pin is pulled out by the stack pin pulling / inserting device 54 before. Pin 2
8 is again inserted into the stack pin holder 29 on the return path side, and transferred from the final end of the return path onto the accumulating pallet 27 at position C (transfer position). In addition, stack pin 2
In the case of the fin device of the type in which the pipe is not inserted into the pipe insertion hole through which 8 is inserted, only one pipe insertion device may be provided.

Next, details of each unit will be described. First, the transfer device 25, the stack pin holder 29, and the circulation pallet 31.
Will be described. The stack pin holder 29 is shown in FIG.
As is clear from the above, there is an insertion hole (insertion hole) 32 into which the stack pin 28 is inserted. Stack pin holder 2
A transfer device 25 (and a transfer device), which will be described later, is provided on the front surface of 9.
There are two support holes 33 into which the finger pins are inserted. Further, on the lower surface of the stack pin holder 29, two pins 34 (1
A positioning hole 35 into which only one is shown is provided. Therefore, the stack pin holder 29 has the circulating pallet 31 with the pin 34 fitted in the positioning hole 35.
By being placed on the circulation pallet 31, it is positioned, supported by the pins 34, and placed. The stacking pallet 27 is also provided with pins (not shown) corresponding to the respective positioning holes 35 of the plurality of stack pin holders 29. The holder 29 can be placed in parallel on the stacking pallet 27. A support wall 36 is provided upright on both ends of the circulation pallet 31, and the fins 24, which are inserted into the stack pins 28 and are held in a stacked state, are sandwiched between the upper portions of the support walls 36. The holding portion 3 that prevents the fins 24 from falling down
7 is provided. The holding portion 37 has a bifurcated holding member 40 attached to the tip of a rod 39 slidably guided by a guide 38. The rod 39 is guided by the guide 38 so that it can be stopped at an appropriate position. Therefore, after the stack pin holder 29 in which the fins 24 are held in the stacked state is placed on the circulation pallet 31 as described above, the rod 39 is pressed to move the holding member 40, and the fins are held by the holding member 40. The fins 24 can be held by sandwiching both sides of 24.
The movement of the rod 39 can be automatically performed by appropriately pressing with a pressing member or by adopting a cylinder mechanism or the like.

The transfer device 25 shown in FIG.
Of the stacking pallet 27, which is disposed in front of the position B (transfer position), is transferred from the stacking pallet 27 located at the position B onto the corresponding circulation pallet 31 one by one. . 41 is guided by the rail 42,
It is a movable body that is horizontally movable between the side of the stacking pallet 27 located at the transfer position and the position of the circulation conveyor 30 corresponding to the transfer position. The driving mechanism of the moving body 41 is a motor and a screw rod (not shown).
It is composed of. An elevating body 44 that is moved up and down by being guided by a shaft 43 is disposed below the moving body 41. The elevating mechanism of the elevating body 44 is also composed of a motor, a screw rod and the like. The elevating body 44 is provided with a cylinder device 45 into which the rod projects in a direction orthogonal to the moving direction of the moving body 41 and the elevating direction of the elevating body 44, and a fixing plate 46 is attached to the rod end. Support holes 33 provided on the front surface of the stack pin holder 29 below the fixing plate 46.
The above-mentioned two finger pins 47 that can be fitted in the above-mentioned two projections are provided corresponding to the support holes 33. Further, an arm 48 (FIG. 18) is provided so as to project forward from the moving body 41,
At the tip of the arm 48, a pressing protrusion 49 is provided which can press the upper surface of the stack pin holder 29 when the stack pin holder 29 is lifted. The pressing protrusion 49 is received by the arm 48 by a spring (not shown). Although not shown, a cylinder device is arranged on an arm protruding forward from the upper part of the moving body 41, and when the stack pin holder 29 is lifted, the fins 24 stacked by the cylinder device are pressed from above. It is possible.

With the above construction, the movable body 41 is driven, and the front side of the stack pin holder 29 to be transferred of the stacking pallet 27 in which the finger pins 47 are located at the transfer position C. To the position where
Then, the cylinder device 45 is driven to move the finger pin 47.
To move the finger pin 47 into the corresponding support hole 33.
The stacking pin holder 29 on the stacking pallet 27 by inserting the
Is lifted by the finger pin 47 and is released from the fitting state of the stacking pallet 27. At that time, the upper surface of the stack pin holder 29 is pressed by the pressing protrusion 49, and the fins 24 are also pressed down from above by the cylinder device, so that the stack pin holder 29 is stably lifted by the finger pins 47 together with the fins 24. In this state, the rod is moved backward by the cylinder device 45, and the moving body 41 is moved to the transfer position C.
The circulating pallet 31 that has been transferred upward is moved to a position located in front of the circulating pallet 31, and then the cylinder device 45 is driven to advance the rod, so that the stack pin holder 29 is moved to above the circulating pallet 31. Next, when the elevating body 44 is lowered, the pins 34 are fitted into the positioning holes 35 provided on the lower surface of the stack pin holder 29. Here, the rod is retracted by the cylinder device 45, and the finger pin 47 is pulled out from the support hole 33, whereby the stack pin holder 29 is transferred from the stacking pallet 27 onto the circulating pallet 31. After the stack pin holder 29 is transferred onto the circulation pallet 31, the holding member 40 is moved forward by being pressed by appropriate means to support both sides of the fin 24, and
Are conveyed on the circulation conveyor 30 without falling.

Next, the pipe inserting devices 50 and 51 will be described. Since the two have substantially the same structure, the pipe insertion device 50 will be described. 4, 5, and 6 are a front view, a side view, and a plan view of the pipe insertion device 50, respectively. As described above, the fins 24 are stacked, and the stack pin holder 29 transferred onto the circulation conveyor 30 is conveyed by the circulation conveyor 30 and the pipe insertion device 5
At a point where it is conveyed to the front of 0, it is stopped at a predetermined position by an appropriate stop mechanism, positioned, and waits. The mounting portion of the stack pin holder 29 may be a fixed type instead of the conveyor type. In the figure, 70 is a pipe supply unit, 72 is a pipe pushing unit, and 74 is a guide unit.

Next, the pipe supply section 70 will be described.
BACKGROUND ART A pipe bending device that bends a long pipe into a U shape and cuts the pipe into a predetermined length is known. 5 in FIG.
5 is the pipe bending line. The pipe 57 bent in a U shape along the pipe bending line 55 is transferred onto the horizontal rod 59 of the lift device 58 (FIG. 5) of the pipe supply unit 70. The lift device 58 is driven to drive the horizontal rod 5
When 9 rises, the pipe 57 straddles the horizontal rod 59 at its U-shaped bent portion and is supported in a vertical state. At the position where the horizontal rod 59 is lifted up to the upper part of the lift device 58, the horizontal rod 59 is directed toward the distributor 60 side by the lift device 58 being rotated 180 degrees about its vertical axis (see FIG. 5). The distributor 60 has an endless conveyor 61 that is driven to rotate on an elliptical orbit in a horizontal plane, and the endless conveyor 61 is provided with a large number of rods 62 protruding horizontally outward. The endless conveyor 61 is stopped at the position where the rod 62 coincides with the position of the horizontal rod 59, the cylinder 63 is driven here, and the pipe 57 on the horizontal rod 59 is transferred onto the rod 62. In this way a predetermined number of pipes 5 on each rod of the distributor 60.
7 is transferred and stocked.

A lifting device 64 is disposed on the opposite side of the lifting device 58 with the distribution device 60 sandwiched between the lifting device 64 and the rear surface side of the pipe insertion device 50. The pipe 57 is transferred from the rod 62 of the distributor 60 to the horizontal rod 65 of the lift device 64 by the same mechanism as described above, and the pipe 57 is lifted and rotated by 180 degrees at the upper part thereof to correspond to each shooter 66 (an example of a support portion). ) It is carried over. Nine shooters 66 are provided. The shooters 66 are obliquely arranged as shown in the drawing, and the shooters 66 are also provided as shown in FIG.
Two pipes 57 can be supplied to the lowermost end of the shooter 66 one by one by two stopper cylinders 67 and 68 arranged laterally. That is, in the stopper cylinder 67, the stopper provided at the rod end is the shooter 66.
The upper pipe 57 can be held by abutting against the second pipe 57 from the bottom. In the stopper cylinder 68, a stopper provided at the rod end can abut against and hold the lowermost pipe 57. And the preceding pipe 57 already supplied to the lowermost end of the shooter 66.
As will be described later, the fins 24 are
Stopper cylinder 68 is opened after being pushed into
This allows the lowermost pipe 57 to be supplied one by one to the predetermined position at the lowermost end of the shooter 66. A sensor 69 is arranged at the lowermost position of the shooter 66, and two conducting portions are arranged in the sensor 69 via an insulator, and the pipe 57 is supplied to the lowermost end of the shooter 66. At this time, both conducting parts are electrically short-circuited by the pipe 57, and this can be detected by a detection device (not shown) to detect that the pipe 57 is present at the lowermost end of the shooter 66.

Next, the pipe pushing portion 72 will be described.
Reference numerals 75, 75 are vertical moving plates, which are screwed at their side edges to two screw rods 77, 77 vertically arranged on the machine base 76. The screw rod 77 is rotated by a motor 78 to move up and down. It is movably installed. 79 is a guide rail. As shown in FIG. 6, a front and rear moving plate 80 is provided on both the upper and lower moving plates 75, 75. The front and rear moving plate 80 is
Both ends of the front-rear moving plate 80 slide on the slide rods 81, 81 provided in the vertical moving plates 75, 75 so that the slide rods 81, 81 guide the slide rods 81, 81 to move back and forth. Both ends of the front-rear moving plate 80 are vertically movable plates 75, 75.
The vertical moving plate 75, 75
Entering inside. Reference numerals 83, 83 denote cylinders disposed on the vertical moving plates 75, 75, and the rod ends of the cylinders are connected to the end portions of the front-back moving plate 80, and drive the front-back moving plate 80 in the front-back direction.

On the front side of the front-rear moving plate 80, nine pushing die devices 84 are arranged in the vertical direction. Reference numeral 85 denotes a mounting base thereof, which is provided with a die slide hole 86 which opens in the vertical direction.
Are movably slidable in the vertical direction. The mount 85 is horizontally movably guided along a guide 89 provided on the front surface of the front-rear moving plate 80 in the horizontal direction. Also the mounting base 8
5, a fixing pin 90 projecting from the rear surface is slidably fitted into an opening 91 provided in the front-rear moving plate 80 in the lateral direction, and its tip portion projects toward the rear surface side of the front-rear moving plate 80. A rod 93 of a positioning cylinder 92 fixed to the rear surface of the front-rear moving plate 80 is connected. Rod 93
As shown in FIG. 9, a contact plate 94 is fixed in the middle of the rod 93. When the contact plate 94 abuts stopper plates 95 and 96 provided on the front-rear moving plate 80, the rod 93, and thus the pushing die device. The lateral movement range of 84 is determined. Reference numeral 97 denotes a stopper cylinder, and when the stopper cylinder 97 is driven, a stopper 98 provided at the rod end thereof enters between the stopper plate 96 and the contact plate 94, whereby the rod 93 moves in the above moving range. It is possible to stop at the midpoint of. That is, the pushing die device 84 can stop its lateral movement over three positions. The positioning cylinder 92, the stopper cylinder 97, and the like constitute the position adjusting means of the pressing die device 84, but are not limited to these.

Next, 100 is a push-in cylinder, which is vertically fixed to the front side of the mounting base 85, and the upper end of the rod 101 is connected to the upper end of the push-in die 87 via the connecting plate 102. ing. Therefore, the push-in cylinder 87 is driven to move the rod back and forth, whereby the push-in die 87 is moved up and down. The lower part of the rear surface of the mounting base 85 is absent, and the rear side of the die slide hole 86 is open. The regulation guides 10 are provided on both sides of this opening.
4 and 104 are provided, and both the regulation guides 10 are provided.
The lower portions of the opposing wall surfaces 4 and 104 are formed as tapered surfaces that spread outward. Further, the lower end surface of the pressing die 87 is formed into an arc surface along the arc of the U-shaped bent portion of the pipe to be inserted. Reference numeral 105 denotes a chuck as an example of a holding means, which is rotatably provided around a shaft 106 at a lower portion of a rear surface of a mounting base 85, is rotated by a cylinder 107, and an upper end of a pipe between the mounting base 85 and an opening mounting base 85. The side can be pinched. The tip of the rod of the cylinder 107 is rotatably attached to a pin 109 fixed to the rear surface of the mounting base 85.

Next, the guide portion 74 will be described. The guide portion 74 is provided below the pipe pushing portion 72.
Reference numeral 120 is a support plate (FIG. 4), and both sides of the support plate are machine bases 76.
It is slidable in the vertical direction by being guided by a guide pole 121 provided in the vertical direction. Support plate 12
A screw rod 122 that is rotatably supported by the machine base 76 is screwed onto the 0, and the screw rod 122 is rotationally driven by the motor 123, so that the support plate 120 is stopped and positioned at a predetermined position in the vertical direction. 125 in FIGS.
9 is a regulation guide member, and 9 groups are provided on the back surface side of the support plate 120 so as to correspond to the pushing die device 84 of the pipe pushing portion 72. Each regulation guide member 125 is provided with a guide hole 126 that allows the pipe 57 to pass through in the vertical direction. As shown in FIGS. 12 and 14, the upper portion of the guide hole 126 is expanded upward so that the lower end portion of the pipe 57 that is pushed in from the pipe pushing portion 72 is easily guided.
Guide to enter 6. The outer width of the pipe 57 pushed into the guide hole 126 is regulated by the inner wall of the guide hole 126.

Each regulation guide member 125 has a support plate 120.
Guided by a rail 128 that is horizontally arranged on the back surface of the device, it can be moved laterally. In addition, the fixing pin 129 protruding from the front surface of the regulation guide member 125 is attached to the support plate 120.
Is slidably fitted in the opening 130 provided in the lateral direction, and the tip portion thereof projects toward the front surface side of the support plate 120.
The rod 132 of the positioning cylinder 131 fixed to the front surface of the support plate is connected to this tip portion. Thirteen
3 is a stopper cylinder. This positioning cylinder 1
31 and the stopper cylinder 133 correspond to the pipe pushing portion 7
The positioning cylinder 92 for positioning the second pressing die device 84 and the stopper cylinder 97 are formed in the same structure,
Positioning adjustment means for positioning and stopping each of the regulation guide members 125 in three lateral positions is configured.

Reference numeral 135 is a restriction cylinder, which is arranged on the lower front surface of the restriction guide member 125, and a restriction member 136 provided at the tip of the rod thereof is provided so as to project into the guide hole 126 of the restriction guide member 125. . Regulating member 13
As shown in FIG. 15, reference numeral 6 denotes a side surface and a guide hole 126.
A gap is secured between the inner wall and the pipe 57 so that the pipe 57 can pass therethrough, and the upper surface thereof is formed into an arc surface. Therefore, the pipe 57 pushed into the guide hole 126 is guided by the upper surface of the regulating member 136 and pushed into the gap. As a result, the pipe 57 will be
The inner wall of the pipe 57 regulates the outer side thereof, and the side surface of the regulating member 136 regulates the inner side thereof, so that the width of the lower end of the pipe 57 is accurately determined.

Next, the restricting portion will be described with reference to FIGS. The regulation portion is located between the vertical moving plates 75, 75 and the guide portion 74, regulates the lower end side of the pipe 57, and guides it to the guide portion 74. Reference numeral 137 is a support plate (only one is shown), which is attached to each of the vertical moving plates 75, 75. A cylinder 138 is fixed to both support plates 137,
The movable plate 139 is horizontally mounted between the rods of the cylinders 138, and the cylinder 138 is driven to move the movable plate 1.
39 is moved up and down. On the lower surface of the movable plate 139, a horizontal moving plate 141 that can reciprocate in a direction perpendicular to the upper surface of FIG. Horizontal moving plate 14
As shown in FIG. 17, a regulating plate 143 having a large number of V-shaped notches 142 formed on the front end face is fixed to the first plate 1,
Further, between the lower surface of the horizontal moving plate 141 and the regulating plate 143, as shown in FIG.
A slide plate 144 is interposed so as to be movable in the upper and left directions. The slide plate 144 is connected to and driven by a rod of a cylinder 145 fixedly arranged on the horizontal moving plate 141. A notch 146 having a substantially rectangular shape is also formed on the front end surface of the slide plate 144. The notch portion 142 and the notch portion 146 are largely overlapped in the vertical direction, and the front end side of the notch portion 142 is wide open.
47 is formed. The interval between the adjacent restriction holes 147 is set equal to the width of the lower end of the pipe 57 to be restricted.

Next, the pipe pushing operation will be described. As described above, the stack pin holder 29 is transferred onto the circulation pallet 31 and conveyed on the circulation conveyor 30, so that the stack pin 28 is inserted and the fins stacked in two rows on the stack pin holder 29. 24 is conveyed to a predetermined position (placement portion) below the front surface side of the pipe insertion device 50 and stopped. Each regulation guide member 125 of the guide portion 74
Is previously moved to a predetermined one of the three movable positions by the positioning cylinder 131 and the stopper cylinder 133 in accordance with the insertion position pattern of the pipe insertion hole 23 of the fin 24 into which the pipe 57 is to be inserted.
In the illustrated example, nine regulation guide members 125 are provided, but not all of them are used. It is appropriately selected and used depending on the number of pipes 57 to be inserted.

The shooter 66 of the pipe pushing portion 72 is supplied with a large number of pipes 57 bent in a U shape from the pipe supplying portion 70 as described above, and one of them is provided at the lowermost end portion. The pipe 57 is supplied and supported in a suspended state. As described above, when the sensor 69 detects that the pipe 57 is being supplied, the cylinders 83, 83 are driven and the front-rear moving plate 80 is retracted, and the push-in die device 84 has its chuck 105 directly above the shooter 66. It is moved to the place located in. Here, the motor 78 is driven, and the up-and-down moving plates 75, 75 as well as the front-back moving plate 80, and thus the push-in die device 84, are lowered, and the chuck 105
Moves down to a position corresponding to the upper part of the pipe 57. At this time, as clearly shown in FIG. 10, the U-shaped portion on the upper portion of the pipe 57 is moved between the regulation guides 104, 104 when the push-in die device 84 descends, and the width thereof is regulated to be regulated. Although the width of the lower portion of the pipe 57 is not regulated yet, the width of the upper portion of the pipe 57 is regulated to correct an extreme bend.

The chuck 105 is formed in a bifurcated shape as shown in FIG.
Is not disturbed. Cylinder 10 here
7 is driven and the corresponding chuck 105 is rotated to clamp the upper portion of the pipe 57 with the mounting base 85. Next, the motor 78 is driven so that the pressing die device 84 causes the pipe 57 to move.
Is lifted to a position where it does not hinder the removal of the cylinders, and then the cylinders 83, 83 are driven to move the forward / backward moving plate 80 forward,
The push-in die device 84 stops at a position directly above the guide portion 74. Here, the positioning cylinder 92 and the stopper cylinder 97 are driven, and the push-in die device 84 is laterally moved so that the push-in die device 84 is positioned immediately above the corresponding regulation guide member 125. That is, the pressing die device 8
4 is moved according to the arrangement of the shooters 66 when the pipe 57 is taken to the shooter 66, and is moved according to the pattern of the restricting guide member 125 when coming above the guide portion 74. If the pipe insertion pattern is a dedicated model, the lateral movement mechanism of the pushing die device 84 and the regulation guide member 125 is not necessary, and the fixing positions of these and the shooter 66 are fixed according to the pipe insertion pattern. Just set it.

Next, the cylinder 140 of the regulating portion is driven to move the horizontal moving plate 141 toward the base portion of the pipe 57, and the base portion of the pipe 57 enters between the notched portions 142 and 146 of the regulating plate 143 and the slide plate 144. Then, when the slide plate 144 is slid laterally by the cylinder 145, the pipe 57 is bent by the restriction hole 147, the twist is corrected and the width is restricted. Here, the motor 78 is driven, the push-up die device 84 is lowered together with the vertical moving plates 75, 75, and the lower portion of the pipe 57 held by the chuck 105 is guided by the guide hole 1 of the regulation guide member 125.
Enter into 26. At this point the motor 78 is stopped,
Also, as the holding by the chuck 105 is released,
The push-in cylinder 100 is driven and the push-in die 87 descends, whereby the pipe 57 is pushed deeply into the guide hole 126. After the lower end of the pipe 57 has entered the guide hole 126, the width regulation by the regulation plate 143 and the slide plate 144 is released. When the pipe 57 enters the guide hole 126, the lower side of the pipe 57 passes through the gap between the side surface of the regulating member 136 protruding into the guide hole 126 and the inner wall of the guide hole 126, and the outside of the lower end portion of the pipe 57. Both inside and inside are width regulated. Further, the lower end of the pipe 57 enters the predetermined pipe insertion hole 23 of the fin 24 by pushing the pipe 57. At this stage, the regulation member 136
Is retracted from the guide hole 126, whereby the pressing die 8
7 is allowed to pass, the pressing die 87 is still lowered, and the pipe 57 is inserted into the fin 24 having the predetermined depth.

When the push-in die 87, the vertical moving plates 75, 75, etc. are lifted and returned to the initial state, the stack pin extracting / inserting device 5 equipped with an appropriate chuck device as described later.
4 causes the stack pin 28 to be pulled out. Then, the stack pin holder 29 is conveyed by the circulation conveyor 30 together with the circulation pallet 31 to the front position of the pipe insertion device 51, and the remaining parts including the pipe insertion hole 23 and the like after the stack pin 28 is pulled out by the pipe insertion device 51. The pipe 57 is inserted into the pipe insertion hole 23 in the same manner as described above to form a fin device into which the pipe is inserted. This fin device is completed by expanding the pipe by the pipe expanding device as described above. The stack pin holder 29, which has been emptied by removing the fin device, is conveyed on the circulation conveyor 30 while remaining on the circulation pallet 31 as described above (the stack pin is reinserted midway), and C
At the position, it is transferred from the circulation pallet 31 to the accumulation pallet 27 of the circulation path 26 by the transfer device.

Next, the stack pin extracting / inserting device 54 will be described. The stack pin pull-out / insertion device 54 is located on the front side of the pipe insertion devices 50 and 51, and one stack pin extraction / insertion device 54 is provided across the forward path and the return path of the circulation conveyor 30. FIG. 20 shows the details. In the figure, 30A is the outward path of the circulation conveyor 30, and the pipe insertion device 50,
Running on the front side of 51. Further, 30B is a return path of the circulation conveyor 30, which is arranged in parallel with the outward path 30A at a predetermined interval. 150 is a drawing cylinder,
The rod 151 is arranged downward on the base, and the rod 151 is driven so as to expand and contract in the vertical direction. A movable plate 153 that is vertically movable by being guided by a guide 152 (FIG. 21) is connected to the tip end side of the rod 151, and a rod 154 that expands and contracts in a direction orthogonal to the rod 151 is connected to the movable plate 153. 155 is attached. A mounting plate 156 is attached to the tip of the rod 154, and two chuck devices 157 are mounted on the mounting plate 156 to fix the fin 2
The two stack pins 28 in one row of 4 can be gripped. Reference numeral 160 denotes a fin pressing device, which is provided below the chuck device 157. The fin pressing device 160 has a movable plate 162 that is vertically moved by a cylinder 161, and further the movable plate 1
A cylinder 163 fixed to 62 and a pressing plate 164 having an inverted L shape provided at the rod end of the cylinder 163 are provided. The pressing plate 164 presses the fins 24 from above.

Next, 166 is a rail 1 provided on the base.
67 is a transfer cylinder provided so as to be movable along the line 67 between the forward path 30A and the backward path 30B.
Is provided so as to be movable back and forth in the vertical direction, and a mounting plate 169 is fixed to the lower end of the rod 168. 165 is a motor for driving the transfer cylinder 166. An advancing / retreating plate 171 that is moved back and forth by the cylinder 170 is attached to the mounting plate 169, and two chuck devices 173 corresponding to the above-mentioned two chuck devices 157 are attached to the upper front side of the advancing / retreating plate 171. Has been. Further reciprocating plate 171
A cylinder 174 (FIGS. 22 and 23) is attached to the center of the front surface of the cylinder 174, and a movable plate 176 is attached to the lower end of a rod 175 of the cylinder 174. The cylinder 174 is driven to move the movable plate 176 vertically. It is designed to be driven. Reference numeral 177 is a guide pole in that case. The chuck device 173 on the front side of the movable plate 176.
Two chuck devices 178 are provided at positions corresponding to the lower side of the.

Next, reference numeral 180 denotes an insertion device, which is used when the transfer cylinder 166 is positioned on the return path 30B.
It is arranged at a position corresponding to the lower part of 66. Plug-in device 1
As shown in FIGS. 24 and 25, the reference numeral 80 has a movable plate 182 which is vertically moved by a motor 181. 183 is a threaded rod at that time, and 184 is a guide rail. Movable plate 182
An advancing / retreating plate 186 that is driven in the front-rear direction by a cylinder 185 is attached to the. On the upper part of the front surface of the advancing / retreating plate 186, the chuck device 1 on the transfer cylinder 166 side is provided.
Two chuck devices 188 are attached corresponding to 78, and further, two chuck devices 189 are attached below the chuck devices 188 at intervals.

Next, the operation of pulling out and inserting the stack pin will be described. The withdrawal of the stack pin 28 is performed after the pipe 57 is inserted into the pipe insertion hole of the fin 24 as described above. This is because after the pipe is inserted, the pipe supports the fins 24 in place of the stack pin. The stack pin 28 is inserted into the stack pin holder 29 which is empty after the pipe 57 is inserted and the stack pin 28 is pulled out as a fin device and removed from the stack pin holder 29 as described above. It is inserted into the insertion hole 32. First,
The operation of pulling out the stack pin 28 from the fin device after inserting the pipe and then inserting the stack pin 28 into the empty stack pin holder 29 will be described. First,
The fin 24 is pressed and held from above by the fin pressing device 160. That is, the cylinder 163 is driven, and the pressing plate 164 is advanced until it is located above the fins 24, and then the cylinders 161 are lowered to press the fins 24. Next, the rod of the pull-out cylinder 150 is lowered, the cylinder 155 is driven to move the chuck device 157 forward, and the chuck device 157 is driven at the forward position to grip the stack pin 28. And rod 151
Is raised and the stack pin 28 is raised. Cylinder 1 for pulling out when stack pin 28 rises to a predetermined position
50 is stopped.

Next, the transfer cylinder 166 is at the position indicated by the solid line in FIG. 20, and the chuck 170 is driven to move the chuck devices 173 and 178 forward. At the advanced position, the chuck device 173 is driven to grip the stack pin 28. . When the chuck device 157 is released, the stack pin 28 is delivered to the transfer cylinder 166 side. In this state, the motor 165 is driven and the transport cylinder 166 moves from the upper position of the outward path 30A to the upper position of the return path 30B. During this movement, the cylinder 174 is driven, the chuck device 178 descends for a predetermined distance, and the chuck device 178 is driven by this descending position.
Will grip the middle part of the stack pin 28. As a result, the lateral swing of the stack pin 28 is prevented, and the stack pin 28 is conveyed above the return path 30B. Next, the transfer cylinder 166 is driven and the stack pin 28 is lowered. The transport cylinder 166 is stopped at a predetermined lowered position,
Then, the cylinder 185 of the insertion device 180 is driven to move the chuck devices 188, 189 forward to grip the stack pin 28 in the advanced position, while the chuck devices 173, 178 are held.
The stack pin 28 is delivered to the insertion device 180 side when the gripping of is released. Here, the motor 181 is driven so that the chuck devices 188 and 189 descend while holding the stack pin 28.
8 is inserted into a predetermined stack pin insertion hole 32 of the stack pin holder 29.

FIG. 26 shows the procedure for pulling out and inserting the stack pin 28. Position O is a first drawing position corresponding to the pipe inserting device 50, position P is a second drawing position corresponding to the pipe inserting device 51, and position Q is a first position on the return path 30B facing the second drawing position P. The insertion position and position R are the second insertion positions on the return path 30B facing the first extraction position O.
At the first pull-out position O, the stack pins 28 in the outer row are pulled out, and the pulled-out stack pins 28 are transported by the transport cylinder 166 to a position above the second insertion position R and stand by. At the second pull-out position P, the stack pin 28 in the inner row is pulled out, and the transfer cylinder 16
6, and is inserted into the stack pin insertion holes 32 in the inner row of the stack pin holder 29 by the insertion device 180 as described above. Stack pin holder 2 with stack pin 28 inserted in this inner row
9 is conveyed to the second insertion position R, the conveyance cylinder 166 that has been waiting is driven here, and further the insertion device 180 is driven, so that the stack pin 28 is the stack pin of the outer row of the stack pin holder 29. It is inserted into the insertion hole 32. In this case, since the chuck devices 188, 189 etc. are located outside the previously inserted stack pin 28, they do not become a spatial obstacle of the previously inserted stack pin 28, and the second difference from the outside. The remaining stack pins 28 can be inserted at the insertion position R. The stack pin 28 extracted by the extraction cylinder 150 as described above is received by the transfer cylinder 166, and the insertion device 180 is further inserted.
By receiving and inserting the stack pin 28, the stack pin 28 is prevented from swinging and the positioning is ensured, and the stack pin 28 can be easily pulled out and inserted. However, instead of receiving the stack pin 28, the stack cylinder 28 may be pulled out and inserted by the pull-out cylinder 150, for example. In this case, as shown in FIG. 27, it is possible to insert the stack pin 28 pulled out at one pull-out position into the outer row at the one insertion position and the remaining stack pin row into the inner row. it can. That is, it is possible to freely pull out and insert in a range that does not cause a spatial obstacle of the chuck device or the like.

Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.

[0035]

According to the stack pin holder circulating device in the heat exchanger assembling apparatus according to the present invention, as described above, the pipe is inserted into the pipe insertion hole from above, so that the stack pin holder is attached to the stack pin holder. Can be transported in a standing state, and the stack pin holder can be easily circulated. That is, one stack pin holder can be taken out from the stacking pallet in which a plurality of stack pin holders having fins are stacked and transferred to the circulation pallet, and the fin device is ejected to become an empty stack pin holder. It is possible to easily transfer the holder from the circulation pallet to the stacking pallet which has been emptied by the transfer of the stack pin holder. When the stack pin holder transferred to the stacking pallet is supplied with fins separately manufactured by an appropriate press device and the stack pin is inserted into the fins to arrange a stacking part for stacking a large number of fins, stacking the fins, Circulation of stack pin holder and automation of pipe insertion are possible.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a heat exchanger assembly line.

FIG. 2 is an explanatory diagram of fins.

FIG. 3 is an explanatory diagram of a stacking pallet and a stack pin holder.

FIG. 4 is a front view of the pipe insertion device.

FIG. 5 is a side view of the pipe insertion device.

FIG. 6 is a plan view of the pipe insertion device.

FIG. 7 is a partial side view of the pushing die device.

FIG. 8 is a partial front view of the pushing die device.

FIG. 9 is an explanatory view of a position adjusting means of the pushing die device.

FIG. 10 is a partial front view of the pushing die device.

FIG. 11 is an explanatory diagram of a shooter (support portion) portion.

FIG. 12 is a partial cross-sectional view of a guide portion.

FIG. 13 is a partial front view of a guide portion.

FIG. 14 is an explanatory diagram of a guide hole of a regulation guide member.

FIG. 15 is an explanatory diagram of a regulation member.

FIG. 16 is a partial front view of the restriction portion.

FIG. 17 is a partial plan view of a restriction portion.

FIG. 18 is a front view of a circulation pallet and a stack pin holder.

FIG. 19 is a partially cutaway explanatory diagram of a transfer device (transfer device).

FIG. 20 is a front view of the extraction / insertion device.

FIG. 21 is a partial explanatory view of the pulling / inserting device.

FIG. 22 is a partial explanatory view of the pulling / inserting device.

FIG. 23 is a partial explanatory view of the pulling-out / inserting device.

FIG. 24 is a front view of the insertion device.

FIG. 25 is a plan view of the insertion device.

FIG. 26 is an explanatory diagram of a withdrawal / insertion procedure.

FIG. 27 is an explanatory diagram of a withdrawal / insertion procedure.

FIG. 28 is an explanatory diagram of a heat exchanger (fin device).

FIG. 29 is an explanatory diagram showing a stacked state of fins.

FIG. 30 is an explanatory diagram showing a conventional pipe insertion method.

[Explanation of symbols]

 23 pipe insertion hole 24 fin 25 transfer device 26 circulation path 27 stacking pallet 28 stack pin 29 stack pin holder 30 circulation conveyor (transfer path) 31 circulation pallet 32 stack pin insertion hole 50 pipe insertion device 54 stack pin extraction / insertion Device 57 Pipe 66 Shooter (supporting part) 70 Pipe supplying part 72 Pipe pushing part 74 Guide part 75 Vertical moving plate 80 Vertical moving plate 84 Pushing die device 87 Pushing die 105 Chuck 120 Supporting plate 125 Restricting guide member 126 Guide hole 136 Restricting member

Claims (4)

[Claims] 1. A stack pin vertically inserted into a stack pin holder is inserted into a pipe insertion hole of a fin that is stacked on the stack pin holder at a predetermined interval and has a U-shape from above. In a circulation device of the stack pin holder in a heat exchanger assembling apparatus having a pipe insertion part for inserting a bent pipe, a plurality of stack pin holders in which the stack pins are erected and a plurality of fins are stacked are parallel to each other. A stacking pallet to be placed on the stacking pallet, a circulation path that circulates the stacking pallet at a position including a stack pin holder transfer position and a stack pin holder transfer position, and a circulation path that can transport the stack pin holders one by one. Transfer the pallet to the transfer position corresponding to the stack pin holder transfer position of the circulation path, the pipe pushing portion, and the circulation path. A circulation pallet transfer path that circulates between the transfer positions corresponding to the stack pin holder transfer position, and one stack pin holder from each stacking pallet at the stack pin holder transfer position of the circulation path,
A transfer device that transfers to a circulation pallet on the circulation pallet transfer path corresponding to the stack pin holder transfer position, and a pipe is inserted while the pipe is inserted by the pipe insertion portion and transferred on the circulation pallet transfer path. The inserted fins are removed to become empty and the stack pin holders are sequentially transferred from the circulating pallet transferred to the transfer position corresponding to the stack pin holder transfer position of the circulation path to the stacking pallet at the stack pin holder transfer position. A stacking pin holder circulating device in a heat exchanger assembling device, comprising: a transfer device for transferring one by one. 2. The circulation path is provided with a stack pin holder transferred to the stacking pallet, a fin separately manufactured by an appropriate press device is supplied, and the stack pin is inserted into the fin to stack a large number of sheets. The stack pin holder circulation device in the heat exchange device assembling apparatus according to claim 1, further comprising a stacking position. 3. A support hole into which a finger pin can be inserted is formed on the front surface of the stack pin holder, and the transfer device and the transfer device have a finger pin that is inserted into the support hole and lifts the stack pin holder. The stack pin holder circulation device in the heat exchange device assembly according to claim 1 or 2. 4. The stack pin in the heat exchange device assembling apparatus according to claim 3, wherein the transfer device and the transfer device have a pressing protrusion that abuts on an upper surface of the stack pin holder when the stack pin holder is lifted. Holder circulation device.