JP3235857B2 - Equipment for manufacturing fins for heat exchangers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a fin for a heat exchanger, and more particularly to an apparatus for manufacturing a fin for a heat exchanger used for a heat exchanger such as a room cooler.

[0002]

2. Description of the Related Art As shown in FIG. 11, a fin for a heat exchanger used in a heat exchanger such as a room cooler has a through hole 1 with a collar in the longitudinal direction of a thin metal plate 102 made of aluminum or the like.
04 are formed in a plurality. As shown in the enlarged view, the through hole 104 with the collar of the heat exchanger fin 100 is formed with the through hole 10 formed in the thin metal plate 102.
A collar 108 with a flange having a predetermined height is formed on the periphery of the sixth. Such a through hole with a collar 104 can increase the heat transfer area of the heat transfer tube to be inserted and improve the heat transfer efficiency of the heat exchanger. Further, in the heat exchanger fin 100 shown in FIG. 11, louvers 112 are formed between the through holes 104 with collars to improve the heat exchange efficiency. As shown in the enlarged view, the louver 112 is formed by bending a narrow metal band in a vertical direction. The heat exchanger fin 100 has a plurality of cutouts (corner cut portions) 110 in order to avoid contact between the heat exchanger fin 100 and other components provided in the vicinity of the portion where the heat exchanger is mounted. It is formed in the place.

A fin 100 for a heat exchanger shown in FIG.
Usually, a plurality of heat exchanger fins are simultaneously formed in parallel from a wide band-shaped metal plate 120 shown in FIG. The band-shaped metal plate 120 first passes through a louver forming step R for forming the louver 112, and then passes through a burring step B for forming small holes for the through holes 104 with a collar by protruding (burring). Next, in the band-shaped metal plate 120 in which the small holes are drilled in the burring step B, the periphery of the small holes is ironed to increase the height of the collar 108 and enlarge the opening diameter of the through hole 106. It passes through the ironing step A, and passes through the refrea step F in which the front end of the collar 108 is bent to form a flange. In this manner, a plurality of rows of colored through holes including the plurality of louvers 112 and the colored through holes 104 formed in the longitudinal direction of the band-shaped metal plate 120 are formed in the width direction of the band-shaped metal plate 120. Furthermore, the belt-shaped metal plate 12
After the hollow portion 122 for forming the corner cut portion 110 and the like shown in FIG. 11 is formed between the 0 rows of colored through holes, the strip-shaped metal plate 120 is slit in each of the colored through holes in the slit process S. The divided plate is cut into a predetermined length in a cutting step C.

[0004] Since the strip-shaped metal plate 120 used in each step shown in FIG.
Is difficult to push forward to each process. For this reason, usually, a transfer device for transferring the divided plate in the direction of the cutting step C is provided between the slitting step S and the cutting step C. Conventionally, a transfer device shown in FIG. 10 has been used as such a transfer device. The transfer device includes a reciprocating body 1 provided to be reciprocally movable left and right by driving means (not shown).
A pin 180, which is urged upward by a spring 200 and has a part of the front end surface formed as an inclined surface, is provided upright at 60. The tip of the pin 180 protruding from the upper surface of the reciprocating body 160 reciprocates with the reciprocating motion of the reciprocating body 160 with a part of the tip protruding from the upper surface of the reference plate. In the transfer device shown in FIG.
As shown in the figure, when the reciprocating body 160 moves in the direction of arrow B, a part of the tip of the pin 180 projecting from the upper surface of the reference plate enters the through hole 104 with a collar located on the slit 140 of the reference plate. In addition, a part of the tip side surface of the pin 180 contacts the inner wall surface of the through hole 104 with a collar (hereinafter, sometimes referred to as the through hole 104), and presses the through hole 104 in the direction of arrow A. For this reason, the split plate is moved
Can be sent in the direction of arrow A, which is the same direction as the moving direction (direction of arrow B).

On the other hand, when the reciprocating body 160 moves in the direction of arrow D opposite to the direction of arrow B shown in FIG. 10A, as shown in FIG. It can be. That is, the inclined surface at the tip of the pin 180 moves in the direction of arrow D while sliding on the edge of the through hole 104, and a force against the urging force of the spring 200 acts on the pin 180. With this force, the pin 180 causes the reciprocating body 1
60, and the height of the protruding portion of the pin 180 is gradually reduced.
You can get out of 4. The tip of the extracted pin 180 slides into the through hole 104 in the direction of arrow D without substantially applying a transfer force to the divided plate by slidingly contacting the rear surface of the divided plate.

[0006]

According to the feeder shown in FIG. 10, the split plate can be fed in the direction of arrow A. For this reason, if the pin 180 shown in FIG. 10 is provided for each divided plate, the strip-shaped metal plate 102 can also be moved in the direction of arrow A. However, in the feeder shown in FIG.
When the slitter is equipped with a disk blade that is capable of continuous slitting of the band-shaped metal body, it is difficult to fully demonstrate the performance of the slitter because the feed of the tip of the The performance balance among the devices constituting the device is lacking. Further, when cutting the divided plate to a predetermined length by a cutter, it is necessary to stop the movement of the feed pin and position the divided plate, but the feed pin 180 of the conventional feed device shown in FIG. Since a part of the front end formed on the inclined surface enters the through hole with the collar, the split plate cannot be positioned only by the feed pin 180, and another positioning means is provided. For this reason,
Complicating post-processing equipment including slitters and cutters.

In particular, as described in Japanese Patent Application Laid-Open No. 1-166823, in order to enable high-speed processing of fins for heat exchangers, a press apparatus equipped with a die for an ironing step A, etc. After the mold, slitter, and cutter are mounted, the processing apparatus is separated. In that case, when the slitter and the cutter are arranged adjacent to the die for hollowing in the post-processing apparatus, it is necessary to precisely position the row of through holes with a collar to perform hollowing. For this reason, as shown in the drawing of the above-mentioned publication, the post-processing apparatus including the hollow mold, the slitter and the cutter has a size similar to that of the press apparatus equipped with the mold for the ironing step A and the like. Increase in size. Therefore, an object of the present invention is to provide a heat exchanger fin manufacturing apparatus that can reduce the size of a post-processing apparatus including a slitter and a cutter, and can easily balance the performance of a slitter capable of continuous slitting with another apparatus of intermittent operation. To provide.

[0008]

In order to achieve the above-mentioned object, the present inventors, in a post-processing apparatus, have a feed end whose front end is fitted into a through hole with a collar and moves continuously in a predetermined direction. As a result of considering that it is effective to arrange the transfer device provided with the pin between the slitter and the cutter,
The present invention has been reached. That is, the present invention provides a plurality of through-hole rows with a collar formed in the longitudinal direction of the strip-shaped metal plate, in which a plurality of through-holes provided with a collar of a predetermined height are arranged in parallel with the width direction of the strip-shaped metal plate. A press device equipped with a mold for forming a row, a slitter that slits the rows of the through holes with the collar continuously in the longitudinal direction of the strip-shaped metal plate and divides each of the rows of the through holes with the collar into divided plates, In a heat exchanger fin manufacturing apparatus provided with a cutter for cutting each of the divided plates to a predetermined length, each transfer of the divided plates is performed between a slitter and a cutter arranged separately from the press device. Each of a plurality of feed pins provided so as to be movable in the direction and one end of which can be fitted into each of the colored through holes in the array of colored through holes, and one end of the feed pin is provided at each of the feed pins. Energizes away from collared holes And a biasing member that,
The other end of the feed pin is opposed to the urging force of the urging member so that each of the feed pins in a state where one end of the feed pin is fitted into the through hole with the collar of the split plate can move a predetermined distance in the cutter direction. A fin for a heat exchanger, comprising: a transfer device including a plate cam having a pressing surface for pressing and extending in a transfer direction of the divided plate, and driving means for moving the feed pin. Manufacturing equipment.

According to the present invention having such a configuration, the slitter is provided adjacent to the die for performing processing such as hollowing between the rows of collared through holes formed in the strip-shaped metal plate.
High-speed processing becomes possible. Further, at the end of the plate cam in the transfer direction of the split plate, there is provided withdrawing means for forcibly pulling out one end of the feed pin inserted into the collar with the through hole of the split plate. One end of the inserted feed pin can be reliably pulled out. The forcible pulling means is formed at the end of the plate cam in the transfer direction of the split plate so as to gradually reduce the pressing force for pressing the other end of the feed pin against the urging force of the urging member. And a contact plate that is provided in parallel along the inclined surface and that contacts the flange formed at the other end of the feed pin and forcibly presses the flange in the biasing direction of the biasing member. The result is simple. Further, when the cross-sectional shape of the plate cam is substantially trapezoidal, it is possible to smoothly insert or remove the inside of the through hole with the collar at the tip of the feed pin.

[0010]

According to the present invention, the transfer of the strip-shaped metal plate and the split plate is performed by the feed pin whose tip is fitted into the through hole with the collar. Since the positioning is performed, there is no need to separately provide a positioning device for the strip-shaped metal plate and the split plate,
The post-processing apparatus including the slitter and the cutter can be reduced in size. Furthermore, since continuous slitting and continuous feeding can be performed while the divided plate is cut by the feeding cutter of a predetermined length, it is easy to maintain the performance balance among the devices constituting the manufacturing apparatus.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a schematic view showing an example of a heat exchanger fin manufacturing apparatus according to the present invention. In FIG. 1, a band-shaped metal plate 10 wound into a roll is applied with press working oil by an oil applying device 16, and then a louver forming die,
The mold for burring, the mold for ironing, and the mold for reflaring are supplied to a press device 12 arranged in the moving direction of the strip-shaped metal plate 10. A predetermined process is performed by the press device 12, and a plurality of colored through-holes provided with a collar of a predetermined height on a peripheral edge are formed in the longitudinal direction of the strip-shaped metal plate. The strip-shaped metal plates 10 formed in a plurality of rows are provided with feed pins 18 shown in FIG.
It is fed out of the press device 12 by a feed device 18 with zeros.

The strip-shaped metal plate 10 sent out from the press device 12 is supplied to a post-processing device 14 which is provided separately from the press device 12, and is subjected to a blanking process and a band-shaped metal plate 10 between the rows of through holes with collars. Are slit in the longitudinal direction to divide the perforated row of collars into divided plates, and cut to cut each of the divided plates into a predetermined length. For this reason, the post-processing apparatus 14 includes a die apparatus 20 for punching, a slitter 22 for performing the slit processing, a transfer apparatus 25 for transferring the slit divided plate,
And a cutter 24 for performing the cutting process. In this manner, a plurality of through holes with a collar are formed in the longitudinal direction obtained by cutting to a predetermined length, and the thin metal plate is accumulated in the stutter 28.

As shown in FIG. 2, a mold apparatus 20 which constitutes the post-processing apparatus 14 for manufacturing the heat exchanger fin manufacturing apparatus and performs the blanking operation of the strip-shaped metal plate 10 is a mold mounting plate 32.
A mold 34 mounted thereon and pressed by a ram 44
The projection 33 is provided on the bottom surface of the projection 3 and the projection 3
One end of the rod of the cylinder 36 is connected to 3. For this reason, the mold 34 is mounted on the mold mounting plate 32 by the cylinder 36.
It is movable by the operation of. Further, the mold mounting plate 32
So that the die lifters 38, 38 provided below the upper and lower sides of the mold mounting plate 32 can move up and down.
Are formed with two slits 37, 37, and on one side of the end of the die lifters 38, 38, as shown in FIG. Have been. As shown in FIG. 4, the mold 34 placed on the mold mounting plate 32 is positioned and fixed by clampers 46, 46 and positioning pins 50 provided on both sides of the mold 34. This clamper 46,
The cylinder 46 can slide on the mold mounting plate 32 by the cylinders 48, 48, and the mold 34 can be in a clamped state or an unclamped state. FIG.
Shows a state where is clamped.

In the mold apparatus 20, when the mold is replaced, the clamper 46 and the clamper 46 are positioned at predetermined positions on the mold mounting plate 32.
After the mold 34 in the clamped state is moved to the unclamped state by the cylinder 48 by moving the clampers 46, 46 by the cylinder 48, the mold 34 is moved above the die lifters 38, 38 by the cylinders 36, 36. Next, the die mounting plate 32 is moved by the die lifters 38 and 38.
Is transferred to the table 40, and the mold 42 to be replaced, which is mounted on the table 40, is fixed at a predetermined position on the mold mounting plate 32 by performing the reverse operation. . In such a mold apparatus 20, the strip-shaped metal plate 10 is guided by a guide plate 30 and supplied to a mold 34 to be subjected to blanking. The band-shaped metal plate 10 subjected to such a blanking process
Is supplied to the slitter 22 shown in FIG. 5 and is slit for each row of through holes with a collar. The slitter 22 has circumferential blade grooves 56 formed in a cylindrical portion 54 that can be driven to rotate.
Are provided so as to rotate in mesh with each other and to be axially mounted on the rotating shaft 58. The interval between the cylindrical blades 52 becomes the width of the slit divided plate.

Each of the slit-shaped through-hole rows thus slit is cut into a predetermined length by a cutter 24 shown in FIG. The cutter 24 includes an upper blade 60 and a lower blade 62, and has a guide 64 so as to be adaptable to the specification of the heat exchanger.
a, 64b so that the position can be changed. In the manufacturing apparatus of this embodiment, the slitter 2 shown in FIG.
Between the cutter 2 and the cutter 24, a transfer device 25 shown in FIG. On the reference plate 66 of the transfer device 25 shown in FIG. 7, a plurality of collared through-holes 2 (hereinafter, sometimes referred to as through-holes 2) are formed in a row in the transfer direction (the direction of arrow A). A slit 4 extending in the transfer direction of the divided plate 11 is formed in a reference plate 66 on which the divided plate 11 slit to a predetermined width is placed and located immediately below each through hole 2. Under the reference plate 66, a track-shaped groove 84 formed on both sides of the reference plate 66.
A plurality of moving plates 68 are guided along (dashed line). These moving plates 68 are provided so as to sequentially move in the direction of arrow R by a drive wheel (not shown) driven by a servomotor or the like.

For this reason, the moving direction of the plurality of moving plates 68 located immediately below the reference plate 66 is parallel to the reference plate 66 and the same as the transfer direction of the divided plate 11 (the direction of arrow A). A plurality of feed pins 70 are attached to the reference plate 66 so as to penetrate the move plate 68 in a direction perpendicular to the moving direction of the move plate 68, and the lower end of the feed pin 70 is on the lower surface side of the move plate 68. It protrudes. The feed pin 70 is urged toward the lower end of the feed pin 70 by an urging member such as a spring as described later. Below the moving plate 68 that moves in the direction of the arrow A, a plate cam 76 having a substantially trapezoidal vertical cross-sectional shape having inclined surfaces 80 and 82 formed at both ends is provided. By the horizontal surface 78 formed between the inclined surfaces 80 and 82 of the plate cam 76, the lower end of the feed pin 70 projecting to the lower surface side of the moving plate 68 is pressed toward the tip of the feed pin 70, and the tip of the feed pin 70 is The split plate 11 is fitted into the through hole 2 of the split plate 11 located above the slit 4 of the reference plate 66 and moves the split plate 11 by a predetermined distance.

Guides 72 shown in FIG. 8A are attached to both sides of the moving plate 68 constituting the transfer device shown in FIG. 7, and guide the moving plate 68 along an endless groove 84. On a link bracket 73 connecting the two guide rollers 71, 71 constituting the guide portion 72, a roller 81 to which a driving force is transmitted in contact with a distal end of a driving wheel (not shown) is provided upright. ing. FIG. 8B is a partial cross-sectional view of the movable plate 68 to which such a guide portion 72 is attached. FIG. 8B shows a moving plate 67 that has moved just below the reference plate 66 (a moving plate 68 located at a position indicated by an arrow X in FIG. 7).
The state of is shown. The guide section 72 shown in FIG.
As shown in (a), the center shaft 7 of the guide rollers 71, 71
5 is screwed to the moving plate 68 via the regulation guide 41 by a screw portion 43 provided in the end direction.
In addition, the regulation guide 41 adjusts the pitch between the moving plates 68, and prevents the lateral misalignment of the feed pin 70,
The upper ends of the feed pins 70 are inserted into the slits 4 formed in the reference plate 66 and the upper ends of the feed pins 77 face the respective through holes 2 correctly.

The guide rollers 41 constituting the guide portion 72 shown in FIGS. 8A and 8B are provided with a movable plate 68 along an endless groove 84 formed in the guide plate 45.
I will guide you. Further, the moving plate 68 used in this embodiment is used.
Are two plates 3 as shown in FIGS. 8 (a) and 8 (b).
3 and 35 are overlapped, and a plurality of feed pins 7
0... Simultaneously move the front and rear ends of the moving plate 68.
Plate 3 so that it protrudes from the upper and lower sides of the
3 and 35 are provided. Such feed pin 7
0, a flange portion 23 is formed, and the spring member 2 is inserted into a space formed in the plates 33, 35.
1 urges the flange portion 23 toward the lower end of the feed pin 70. In this embodiment, FIG.
As shown in FIG. 7, in order to prevent the play of the feed pin 36, the oilless metal 31 is provided at each end of the through hole of the moving plate 30 through which the feed pin 36 is inserted for guiding.

According to the transfer device of this embodiment shown in FIGS. 7 and 8, the feed pin 70 of the moving plate 68 at the position of arrow X in FIG. 8
2. Move along the horizontal plane 78 and the inclined plane 80. At this time, on the inclined surface 82 of the plate cam 50, the lower end surface of the feed pin 70 is gradually pressed against the urging force of the spring member 21 pressing the feed pin in the lower end direction. Are gradually inserted into the through holes 2 of the metal strip 10. Next, the horizontal surface 7 connected to the inclined surface 82
In 8, the feed pin 70 can move in the direction of arrow A with the tip inserted into the through hole 2, and can feed the split plate 11 in the direction of arrow A. Thus, the inclined surface 8 of the plate cam 76
In the second and horizontal planes 78, the lower end surface of the feed pin 70 is pressed toward the tip of the feed pin 70 against the urging force of the spring member 21.

On the other hand, on the inclined surface 80 connected to the horizontal surface 78, the lower end surface of the feed pin 76 is
Of the feed pin 70 toward the distal end of the feed pin 70 gradually decreases against the urging force of the feed pin 70.
The tip of the feed pin 70 which has been sent downward by the first and fitted in the through hole 2 of the split plate 11 is also gradually sent out. As described above, in the transfer device of the present embodiment, the feed pins 70 are successively fitted into the through holes 2 of the divided plate 11 and moved in the direction of arrow A, so that the feed pins 70 are sent out from the press device 12 and connected to the divided plate 11. The strip-shaped metal plate 10 can also be continuously transferred in the direction of arrow A. The moving plate 68 having passed through the plate cam 76 is guided by the endless track-shaped groove 84 and moves in the direction of arrow R. During this movement, the driving force is transmitted by the contact between the roller 81 erected on the ring bracket 72 of the guide section 40 and a driving wheel (not shown).

In this embodiment, since a plurality of moving plates 68 are provided adjacent to each other, the power of the driving wheel is transmitted to another moving plate 68 via the moving plate 68 in contact with the driving wheel. , Moving plate 68
Can move along the groove 84. Therefore, when driving the drive wheel continuously, the moving plate 68 can be continuously moved, and when driving the drive wheel intermittently, the moving plate 68 can be intermittently moved. In addition, when the driving wheel is stopped when the moving plate 68 is intermittently moved, the movement of the moving plate 68 on which the feed pin 70 with the tip of the feed pin 70 fitted into the through hole 2 of the split plate 11 is also stopped. , Strip-shaped metal plate 10
In addition, the divided plate 11 can be brought into a stationary state in a state where the positioning is performed, and the punching and cutting can be accurately performed in the mold device 20 and the cutter 24. As described above, according to the transfer apparatus of the present embodiment, the dividing plate 11 can be continuously transferred for a predetermined length, and the dividing plate 11 can be stopped while the strip-shaped metal plate 10 and the dividing plate 11 are positioned. Even if the slitter 22 capable of continuous slitting as shown is adopted, the performance balance with the intermittently operating device such as the mold device 20 and the cutter 24 for performing the blanking can be maintained.
Further, unlike the conventional transfer device shown in FIG. 10, there is no need to separately provide a positioning member, so that the transfer device can have a simple structure, and the size of the post-processing device 14 can be reduced.

In the transfer device shown in FIGS. 7 to 9, the clearance between the through hole 2 and the tip of the feed pin 70 is made as much as possible in order to further accurately position the band-shaped metal plate 10 and the split plate 11. When it is narrow, the fitting force between the tip of the feed pin 70 and the through hole 2 becomes larger than the urging force of the spring member 21, and the urging force of the spring member 21 cannot feed the feed pin 70 in the lower end direction. May be interrupted. In this case, as shown in FIG. 9, a flange 83 is formed at the lower end of the feed pin 70, and an inclination formed at the end of the plate cam 76 in the transfer direction (the direction of the arrow A) of the divided plate 11 is formed. By forming a contact plate 81 that is in parallel with the surface 80 and contacts the flange 83 and forcibly presses the flange 83 toward the lower end of the feed pin 70, continuous feeding of the split plate 11 can be performed. . .

That is, in the transfer device of this embodiment shown in FIG. 9, the lower surface of the contact plate 81 formed on the inclined surface 80 of the plate cam 76 and the upper surface of the flange 73 formed on the lower end of the feed pin 70 Abuts. Since the contact plate 81 is formed in parallel with the inclined surface 80 of the plate cam 76, as the flange 83 moves in the direction of arrow A while abutting along the contact plate 81, the upper surface of the flange 83 A pressing force for pressing the feed pin 70 in the lower end direction acts to forcibly send the feed pin 70 in the lower end direction. For this reason, the tip of the feed pin 70 fitted in the through hole 2 of the split plate 11 is also sent out, and the fitted state can be eliminated. Through hole 2 of split plate 11 and feed pin 7
The feed pin 70 that has been sent out in the lower end direction to such an extent that the fitting state with the leading end of the zero is canceled is returned to the original position by the spring member 21. Here, the inner diameter of the through hole 2 and the feed pin 70
1 / 100-0.1m clearance with outer diameter of tip
When it was set to m, the continuous feeding of the divided plate 11 could be performed stably, and the continuous slitting of the strip-shaped metal body 10 by the slitter 22 could be performed stably. In addition, the driving wheel is stopped and the moving plate 68 is kept stationary so that the strip-shaped metal plate 10 and the split plate 1
1 was able to be performed, and the blanking by the mold 24 and the cutting of the divided plate 11 by the cutter 24 could be performed accurately.

Further, the feed pin 70 moves up and down while moving in the horizontal direction.
Because it is sent linearly to and sent out linearly,
The deformation of the through hole 2 during the transfer of the dividing plate 11 can be prevented. In addition, even if the clearance between the through hole 2 and the tip of the feed pin 70 is made as small as possible, the fitting state between the feed pin 70 and the through hole 2 can be forcibly eliminated. Of the through hole 2 can be further reduced. In recent years, in order to improve the heat transfer efficiency of the heat exchanger fins, as shown in FIG. 12, even in the divided plate 11 in which the slits and / or the louvers are formed between the through holes 2, the leading ends of the feed pins 70 are provided. Does not come into sliding contact with the back surface of the dividing plate 11, so that the dividing plate 11 can be transferred without deforming the slit or the like.

In the transfer apparatus used in the manufacturing apparatus of the present embodiment described above, the contact plate 81 which comes into contact with the flange 83 formed at the tip of the feed pin 70 on the inclined surface 80 of the plate cam 76 is provided. Although provided, other pulling means for forcibly pulling out the feed pin 70 fitted in the through hole 2 of the split plate 11, for example, by attaching a permanent magnet to the inclined surface 80 and feeding the feed pin 7
A withdrawing means for forcibly extracting 0 may be provided.

[0026]

According to the present invention, the structure of the heat exchanger fin manufacturing apparatus can be simplified, and a continuously operable apparatus such as a slitter and a mold such as a mold constituting the manufacturing apparatus can be used. Since it is easy to balance the performance with the above, the miniaturization and automation of the manufacturing apparatus can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of the present invention.

FIG. 2 is a mold apparatus 20 constituting the post-processing apparatus 14 of FIG.
3 is a partial side sectional view of FIG.

FIG. 3 is a mold apparatus 20 constituting the post-processing apparatus 14 of FIG.
3 is a partial plan sectional view of FIG.

FIG. 4 is an explanatory diagram illustrating a mounting state of a mold constituting the mold apparatus 20.

FIG. 5 shows a slitter 2 constituting the post-processing apparatus 14 of FIG.
2 is a sectional view of FIG.

6 is a cutter 24 constituting the post-processing device 14 of FIG.
FIG.

7 is a transfer device 25 constituting the post-processing device 14 of FIG.
FIG. 4 is an explanatory diagram for describing the structure of FIG.

8 is a moving plate 6 constituting the transfer device 25 of FIG. 7;
8 is a side view and a partial sectional view of FIG.

FIG. 9 is a partial sectional view showing another embodiment.

FIG. 10 is an explanatory diagram for explaining a conventional transfer device.

FIG. 11 is an explanatory diagram for explaining heat exchanger fins.

FIG. 12 is an explanatory diagram illustrating a method of manufacturing the heat exchanger fin of FIG. 11;

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 strip-shaped metal plate 11 division plate 12 press device 14 post-processing device 20 mold device 21 spring member (biasing member) 22 slitter 24 cutter 25 transfer device 70 feed pin 76 plate cam

Continuation of front page (56) References JP-A-61-60221 (JP, A) JP-A-61-20632 (JP, A) JP-A-1-166823 (JP, A) JP-A-1-301050 (JP) JP-A-4-123828 (JP, A) JP-A-55-158828 (JP, A) JP-A-1-84818 (JP, U) JP-A-4-12339 (JP, U) Field surveyed (Int. Cl. ⁷ , DB name) B21D 53/00-55/00 B23P 15/26 B21D 13/02 B21D 43/00-43/28

Claims (5)

(57) [Claims] 1. A plurality of through-hole rows with collars, each of which has a plurality of through-holes provided with a collar of a predetermined height on a peripheral edge thereof and formed in the longitudinal direction of the strip-shaped metal plate, in parallel with the width direction of the strip-shaped metal plate. A press device on which a mold to be formed is mounted; a slitter that continuously slits the gap between the through-holes with a collar in the longitudinal direction of the strip-shaped metal plate and divides each through-hole row with a collar into a split plate; In a heat exchanger fin manufacturing apparatus provided with a cutter for cutting each of the plates to a predetermined length, a transfer direction of each of the divided plates is provided between the press device and a slitter arranged separately from the cutter. Each of a plurality of feed pins provided so as to be movable to one end and fit into each of the colored through holes of the colored through hole row; and one end of the feed pin is provided at each of the feed pins. Energized away from the through hole The other end of the feed pin is urged so that each of the feed pins in a state where one end of the feed pin is fitted into the collared through hole of the split plate can move a predetermined distance in the cutter direction. A transfer device including a plate cam having a pressing surface that presses against the urging force of the member and extending in the transfer direction of the divided plate, and a driving unit that moves the feed pin is provided. Equipment for manufacturing heat exchanger fins. 2. The heat exchanger fin manufacturing apparatus according to claim 1, wherein a slitter is provided adjacent to a mold for performing a process such as hollowing between the rows of collared through holes formed in the strip-shaped metal plate. 3. A pull-out means for forcibly pulling out one end of a feed pin fitted into a through-hole of a through-hole array with a collar is provided at an end in the transfer direction of the split plate of the plate cam. Equipment for manufacturing fins for heat exchangers. 4. A forcible pull-out means at a tip end of a feed pin fitted into a collared through hole of a split plate biases the other end of the feed pin to an end of the plate cam in a direction of the collared through hole row transfer direction. An inclined surface formed so as to gradually reduce the pressing force against the urging force of the member, and a flange provided in parallel with the inclined surface and formed at the other end of the feed pin. 4. The heat exchanger fin manufacturing apparatus according to claim 3, further comprising a contact plate for forcibly pressing the flange in the urging direction of the urging member. 5. The heat exchanger fin manufacturing apparatus according to claim 1, wherein the plate cam has a substantially trapezoidal cross section.