JP2003320433A - Device for manufacturing fin for heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for manufacturing a fin for a heat exchanger capable of continuously performing stacking operation without substantially stopping the device and effectively manufacturing the fins for a heat exchanger. <P>SOLUTION: A first laminating device 45 and a second laminating device 46 comprise suction devices 48, 51 to suck a slit plate where a colored through hole is formed, cutters 47, 50 to cut the slit plate sucked by the suction devices to a prescribed length, and stackers 49, 52 to laminate the fins for the heat exchanger, which are obtained by cutting the slit plate with the cutters and dropped by releasing the suction with the suction device. These laminating devices, provided in series, have a control section to control the stacker to change stacking the fins for the heat exchanger to the other stacker, when a prescribed number of fins is stacked to one stacker. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an apparatus for manufacturing fins for heat exchangers.

[0002]

2. Description of the Related Art The applicant of the present invention discloses an invention of an apparatus for manufacturing a heat exchanger fin used in a heat exchanger such as a room cooler in, for example, Japanese Patent Application Laid-Open Nos. 5-192728 and 3-353294. is doing. FIG. 9: is a figure which shows an example of the fin for heat exchangers shape | molded by the manufacturing apparatus of the fin for heat exchangers. As shown in FIG. 9, the fin 10 for a heat exchanger is formed by forming a plurality of through holes 12 with collars in the longitudinal direction of a thin metal plate 11 made of aluminum or the like. As shown in the enlarged view of FIG. 9, the through holes 12 with collars of the fins 10 for the heat exchanger are the thin metal plates 1
A collar 14 with a collar having a predetermined height is formed on the peripheral edge of the through hole 13 formed in 1. Such a through hole 12 with a collar can enlarge 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 fin 10 for the heat exchanger, the louvers 15 are provided between the through holes 12 with collars in order to improve the heat exchange efficiency.
Are formed. As shown in the enlarged view of FIG. 9, the louver 15 is formed by bending a narrow metal strip in the up-down direction. Further, in the heat exchanger fin 10, cutout portions (corner cut portions) 16 are formed at a plurality of positions in order to avoid contact between the heat exchanger fin 10 and other components provided in the vicinity of the heat exchanger fin 10. Has been done.

When manufacturing the heat exchanger fin 10 shown in FIG. 9, normally, a plurality of heat exchanger fins are simultaneously formed in parallel from a wide band-shaped metal plate. The manufacturing process of the heat exchanger fin 10 will be described with reference to FIGS. The band-shaped metal plate 17 first passes through the louver forming process L for forming the louver 15 and then is subjected to burring to form a small hole 1 for the through hole 12 with a collar.
A burring process B for drilling 8 is passed. Next, in the burring step B, the strip-shaped metal plate 17 having the small holes 18 formed therein.
Passes through an ironing process A in which the periphery of the small hole 18 formed is ironed to increase the height of the collar 14 and increase the opening diameter of the through hole 13, and the tip of the collar 14 is bent to make a collar. It goes through a reflaring process F which forms a part. In this way, a plurality of rows of colored through holes, each of which includes a plurality of louvers 15 and the through holes 12 with a collar, which are formed in the longitudinal direction of the strip-shaped metal plate 17 are formed in the width direction of the strip-shaped metal plate 17. Further, after passing through the hollowing step N and forming hollow portions 19 such as the corner cut portions 16 between the colored through hole rows of the belt-shaped metal plate, the belt-shaped metal plate is subjected to the slitted hole row in the slit step S. Slit each time and make a slit plate 20,
Subsequently, in the cutting step C, the slit plate 20 is cut into a predetermined length.

The heat exchanger fin 10 (see FIG. 9) manufactured by the above-described process is, for example, as shown in FIG.
It is manufactured by the heat exchanger fin manufacturing apparatus shown in FIG. In the manufacturing apparatus, first, the strip-shaped metal plate 17 wound in a roll shape is supplied to the pressing apparatus 112, and as described above, the louver forming step L, the burring step B, the ironing step A, and the reflaring step F are passed. Then, the slit plate 20 (see FIG. 10) is formed by being sent to the post-processing device 114 by the sending-out device 113 as a sending device and passing through the hollowing process N and the slit process S. Feeder 116
Is sent to the cutting step C. The slit plate 20 supplied to the cutting step C is cut into a predetermined length by the cutting device 120, and the heat exchanger fins thus formed are stacked in the stacking step T.
Are stacked and stacked at.

Here, the stacking step T will be described in detail. In the laminating step T, first, the feeding device 116 shown in FIG.
The slit plate 20 sent by the slit plate 2
Vacuum suction device 118 provided to suck from above 0
And is cut into a predetermined length by the cutting device 120. Then, the suction of the vacuum suction device 118 is released simultaneously with the cutting, and the stacker 1 provided below the vacuum suction device 118.
22 is to be laminated. The stacker 122 stacked and stacked has a plurality of stack pins 126 whose vertical ends are supported by the horizontal plate 124 and through which the through holes with collars of the heat exchanger fins are inserted so that the fins for the heat exchanger are inserted. It is formed so as to stack.

A stacker 122 shown in FIG. 11 shows an embodiment used in a conventional apparatus for manufacturing heat exchanger fins. In the stacker 122 of this apparatus, two stackers are integrally formed so that when one stacker is filled with the heat exchanger fins, the stacking is immediately performed by the next stacker.
That is, the first stacker 122a and the second stacker 122
The horizontal plates provided in b are connected, and two stackers are integrally formed by the horizontal plate 124 that is a single plate. Then, the center of the horizontal plate 124 is
Is supported by the central shaft 128 so as to be rotatable in the horizontal direction, so that when the first stacker 122a is filled with the heat exchanger fins, the horizontal plate 124 is rotated to promptly move the second stacker 122b. It is designed to be laminated.

[0008]

However, when the first stacker 122a is filled with a predetermined number of heat exchanger fins, the position of the second stacker 122b is replaced with the second stacker 122b at a high speed. It is impossible to do it faster. Therefore, at the time of replacing the stacker, the manufacturing apparatus had to be temporarily stopped or the speed of the feeding device 116 had to be controlled. However, stopping the manufacturing apparatus every time one stacker 122 is filled, or lowering the feed rate of the feeder 116 when the stacker is replaced is inefficient in production, and when feeding at a constant rate. Compared with this, there is a problem that the processing accuracy of the product may decrease. Therefore, the present invention has been made to solve these problems, and an object of the present invention is to be able to continuously perform stacking work without substantially stopping the apparatus, and to efficiently heat the apparatus. An object of the present invention is to provide a fin manufacturing device for a heat exchanger capable of manufacturing a fin for an exchanger.

[0009]

In order to achieve the above-mentioned object, the inventors of the present invention provide two stacking devices, which are composed of a cutter, an adsorption device and a stacker, in series, and one of the stackers has a fin for a heat exchanger. By controlling the other stacker to start stacking when
The present invention has been completed by various studies, considering that it is possible to stack the manufactured heat exchanger fins almost continuously.
That is, according to the present invention, a plurality of through holes each having a collar having a predetermined height on the periphery thereof are formed in the longitudinal direction of the strip-shaped metal plate so as to make the through hole array with collar parallel to the width direction of the strip-shaped metal plate. A pressing device equipped with a die for forming a plurality of rows, a slitter for slitting between the rows of the through holes with collars in the longitudinal direction of the strip-shaped metal plate, and a slitting for the strip-shaped metal plate having the rows of through holes with collars by the slitter. A first adsorbing device for adsorbing the slit plate, and a first cutter for cutting the slit plate adsorbed by the first adsorbing device to a predetermined length, The heat exchanger fins obtained by cutting the slit plate with the first cutter are provided with a first stacker for releasing the adsorption of the first adsorption device and dropping the fins, and stacking the stacked stacks. A second suction device that sucks the slit plate that is sucked by the first suction device and moved by the feeding device without being cut by the first cutter, and the slit plate that is sucked by the second suction device has a predetermined length. A second cutter that cuts into a groove and a fin for a heat exchanger obtained by cutting the slit plate with the second cutter,
A second stacker for releasing the suction of the suction device and dropping the stack, and stacking the stacked stacks, and a predetermined number of heat exchanger fins are stacked on one of the first stacker and the second stacker. A control unit that controls the first cutter, the first adsorption device, the second cutter, and the second adsorption device is provided so that the heat exchanger fins are stacked on the other stacker when the stacking is performed. It is a device for manufacturing a heat exchanger fin. The feeding device for the strip-shaped metal plate may be installed in a single place or a plurality of places at an appropriate place as needed. For example, it can be installed after the pressing device and after the slitter, or one can be installed at an appropriate place depending on the configuration and arrangement of the manufacturing device. When a plurality of feeding devices are installed, they may be of the same type or different types suitable for each process. The strip-shaped metal plate also includes a slit plate. In the present invention having such a configuration, when a predetermined number of heat exchanger fins are stacked on the first stacker, the heat exchanger fins are adsorbed to the first adsorption device and then adsorbed to the second adsorption device by the action of the control unit. It is sent in, cut by the second cutter, and stacked on the second stacker. Then, thereafter, the first and second stacking devices (the cutter, the suction device, and the stacker) are alternately operated by the function of the control unit. Thereby, the fins for the heat exchanger can be continuously stacked and stacked with almost no stop of the manufacturing apparatus and substantially without changing the speed of the feeding apparatus, which is efficient.

The first suction device and the second suction device of the present invention are preferably vacuum suction devices, and are preferably provided with a damper mechanism for controlling the suction force. As described above, the first and second suction devices are simple devices that use the vacuum suction device and the damper mechanism together, so that the suction and the release can be performed easily and accurately. Further, in the heat exchanger fin manufacturing apparatus of the present invention, the slit plate used when changing the stack of heat exchanger fins from the second stacker to the first stacker is fed in the direction opposite to the transfer direction. A reverse feed mechanism is preferably provided. This makes it possible to manufacture the heat exchanger fin without wasting the strip-shaped metal plate. Further, it is preferable that the reverse feeding mechanism is provided in the feeding device. With this, it is not necessary to newly provide a reverse feed mechanism, and it is possible to simply control as one feed device. Further, between the press device and the feeding device,
It is also possible to provide a space in which the strip-shaped metal plate can be bent and held. This eliminates the need to stop the pressing device even when the feeding device performs reverse feeding.
Further, it is preferable that the slitter is provided immediately before the feeding device. Thereby, the slit can be suitably provided in the strip-shaped metal plate by pulling the feeding device. Further, the slitter may be provided in the pressing device. This is because even when the slit plate is returned by the reverse feed mechanism, the bending space absorbs the return, so that the strip-shaped metal plate in the press device is fed in only one direction, so that the “beard” is formed on the slit plate. Is not formed. The slitter provided in the press device includes not only a slitter provided in a mold in the press device but also a slitter provided in association with the press device.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the apparatus for manufacturing a heat exchanger fin according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic view showing an embodiment of the apparatus for manufacturing a heat exchanger fin of the present invention. Figure 1
As shown in FIG. 5, the heat exchanger fin manufacturing apparatus 21 of the present embodiment is provided with a plurality of through holes each having a collar of a predetermined height on the peripheral edge thereof. A press device 22 equipped with a mold for forming a plurality of rows in parallel with the width direction of the strip-shaped metal plate, a slitter 24 for slitting between the rows of through holes with collars in the longitudinal direction of the strip-shaped metal plate, and a slitter 24. The feeding device 23 feeds the slit plate slit in the moving direction, and the laminating device 25 that cuts the slit plate into a predetermined length and stacks the obtained heat exchanger fins.

The structure of the heat exchanger fin manufacturing apparatus 21 of this embodiment will be described below in the order of steps. In FIG. 1, the strip-shaped metal plate 17 wound in a roll shape is supplied to the press device 22 after the oil for press working is applied by the oil applying device 26. A louver forming die, a burring die, and an ironing die are arranged in the pressing device 22 in the transfer direction of the strip-shaped metal plate 17. With this pressing device 22, the strip-shaped metal plate 17 is A collared through hole 12 (see FIG. 9) is formed with a collar 14 having a predetermined height on the periphery. A plurality of the colored through holes 12 are provided in the longitudinal direction of the strip-shaped metal plate 17 to form a colored through hole array, and the plurality of colored through hole arrays are formed in parallel in the width direction. In this way, the strip-shaped metal plate 17 in which the plurality of through holes 12 with collars are formed is the delivery device 28 which is the delivery device shown in FIGS.
Is sent from the press device 22.

2 (a) and 2 (b) are explanatory views showing the structure of the feeding device 28. As shown in FIG. As shown in the figure, the feeding device 28 is urged upward by a reciprocating body 29 provided so as to be reciprocable left and right by a driving means (not shown) and a urging member 30 such as a spring provided in the reciprocating body 29. And a part of the front end surface is formed by the delivery pin 27 formed on the inclined surface 27a. The feed-out pin 27 is mounted on a reference plate 31 provided with a slit extending from the upper surface of the reciprocating body 29 and extending in the feed direction, and fitted into the through hole 12 with a collar provided in the band-shaped metal plate 17. It is provided to do. When the strip-shaped metal plate 17 is sent out in the transfer direction, first, as shown in FIG. 2A, the tip of the delivery pin 27 enters into the through hole 12 with the collar of the strip-shaped metal plate 17 and reciprocates. By the movement of the moving body 29 in the arrow E direction, the side surface of the delivery pin 27 presses the inner peripheral surface of the through hole 12 with the collar in the arrow E direction, and moves the strip-shaped metal plate 17 in the arrow E direction by a predetermined distance.

After that, when the reciprocating body 29 moves in the direction of the arrow G, as shown in FIG. 2B, the inclined surface 27a at the tip of the delivery pin 27 makes sliding contact with the edge of the through hole 12, and the delivery pin 27 is in contact. By pushing 27 downward, the fitting between the through hole 12 and the feed-out pin 27 is released, and the reciprocating member 29 does not move the strip-shaped metal plate 17 in the arrow G direction.
Moves in the direction of arrow G, the delivery pin 27 is fitted into the through hole 12 provided behind the through hole, and the above-described operation is repeated. Then, the reciprocating body 29 repeats the operations shown in FIGS. 2A and 2B, so that the strip-shaped metal plate 17 can be sent in the transfer direction.

As shown in FIG. 1, the strip-shaped metal plate 17 sent from the pressing device 22 by the sending device 28 is as shown in FIG.
Post-processing device 32 that is arranged separately from the press device 22
Is supplied to. Since the press device 22 and the post-processing device 32 are separated in this way, the belt-shaped metal plate 17 can be slightly bent when the belt-shaped metal plate 17 is fed by the feeding device 28. It is not necessary to accurately match the manufacturing timing of the processing steps.

As shown in FIG. 1, the post-processing device 32 comprises a die device 33 for punching, a slitter 24 for slitting, and a feeding device 23 for transferring a slit plate. The die device 33 for the punching process provided in the post-processing device 32 is a device for performing the punching process such as the corner cut portion 16 shown in FIG. 9, and the strip-shaped metal plate 17 supplied to this device is a punching device. Punching is performed.
After the blanking process is performed, the strip-shaped metal plate 17 is supplied to the slitter 24 shown in FIG. 3 and slits for each row of through holes with collars.

FIG. 3 is a vertical cross-sectional view of the slitter in this embodiment cut perpendicularly to the transfer direction. As shown in the drawing, the slitter 24 is provided with a cylindrical blade 37, which is rotated by meshing with a cylindrical blade groove 35 formed in a rotationally drivable cylindrical portion 34 and is axially attached to a rotary shaft 36. Has been formed. The gap between the cylindrical blades 37 is slit to form a slit plate 20 (see FIG. 4) in which the strip-shaped metal plate 17 is separated for each row of through holes with collars.

A feed device 23 shown in FIG. 4 is arranged after the slitter 24. The feed device 23 is provided so as to be movable in the transfer direction of the slit plate 20 and one end of which can be fitted into the through hole 12 of the through hole row with collar, and the feed pin 40. An urging member such as a spring that urges one end of the slit 40 away from the through hole 12 and one end of the feed pin 40 through the through hole 12 of the slit plate 20.
The pressing surface that presses the other end of the feed pin 40 against the urging force of the urging member transfers the slit plate 20 so that the feed pin 40 in the state of being fitted therein can be moved by a predetermined distance in the feed direction. It is provided with a plate cam 43 extending in the direction and a drive means for moving the feed pin 40.

More specifically, the slit plate 20 in which a plurality of through holes 12 with collars are bored at a predetermined interval in the feed direction is used as a slit plate 20 having a reference plate 44 provided with slits in the feed direction. Each of the attached through holes 12 is placed so as to be located above. Then, the reference plate 44
A plurality of moving plates 38, ..., which are substantially parallel to the reference plate 44 and which are sequentially moved in the feed direction of the slit plate 20 are provided below the lower ends of the moving plates 38. A feed pin 40 is provided, the portion of which protrudes and penetrates in a direction perpendicular to the moving direction of the moving plate, and is biased toward the lower surface of the moving plate 38 by a biasing member (not shown). In this embodiment, the moving plate 38 and the feed pin 40 are used.
And the moving unit 41,
Are connected in an annular shape and are sequentially moved in the direction of arrow I by a drive wheel 39 driven by a stepping motor or the like.

A plate cam 43 having a substantially trapezoidal cross section is provided on the inner peripheral portion of the moving unit group, whereby the lower end portion of the feed pin 40 is rotated when the moving unit 41 ,. Comes into contact with the inclined surface 43a of the plate cam, and the tip of the feed pin 40 smoothly fits into the through hole 12. Then, after the slit plate 20 is moved by a predetermined distance, the tip of the feed pin 40 is pulled out downward to be removed from the row of through holes. By sequentially performing such a series of operations by the moving unit 41 connected in an annular shape, the slit plate 20 can be continuously moved at a substantially constant speed, and the manufacture of the heat exchanger fin is suitable. It becomes possible to do it.

The slit plate 20 carried by the feeding device 23 at a constant speed is fed to the laminating device 25.
And the manufacturing apparatus 21 of the fin for heat exchangers of this invention is
In particular, the structure of the laminating apparatus 25 is characterized. Hereinafter, the laminating apparatus will be described in detail with reference to FIGS. 1 and 5. The laminating apparatus 25 of the present invention includes a first laminating apparatus 45, a second laminating apparatus 46, and a controller 63 that controls the operations of the first laminating apparatus 45 and the second laminating apparatus 46. Then, the first stacking device 45 includes the slitter 24.
The first to adsorb the slit plate 20 obtained by slitting the strip-shaped metal plate 17 having the through hole row with collar by
A first vacuum suction device 48 as a suction device, a first cutter 47 that cuts the slit plate 20 sucked by the first vacuum suction device 48 into a predetermined length, and the slit plate 20 is cut by the first cutter 47. The heat exchanger fin 10 obtained in this way is configured with a first stacker 49 that releases the suction of the first vacuum suction device 48 and drops it, and stacks and stacks the stacked stacks. The first vacuum suction device 48 without being cut by the first cutter 47
The second vacuum suction device 51 as a second suction device that sucks the slit plate 20 fed by the feeding device 23 while being sucked by the feeding device 23, and the slit plate 20 suctioned by the second vacuum suction device 51 are predetermined. The second cutter 50 that cuts to a length and the slit plate 20 by the second cutter 50
The heat-exchanger fin 10 obtained by cutting the sheet is formed of a second stacker 52 that releases the suction of the second vacuum suction device 51, drops the stack, and stacks the stacked stacks.

As shown in FIG. 1, the stacking device 25 of the heat exchanger fin manufacturing device 21 of the present embodiment has a feeding device 2 as shown in FIG.
The first stacking device 45 and the second stacking device 46 are linearly provided in this order in the subsequent stage. The laminating apparatus 25 including the first laminating apparatus 45 and the second laminating apparatus 46 will be described in more detail. The first stacking device 45 is provided with a first cutter 47 that inserts a slit plate and cuts into a predetermined length. As shown in FIG. 6, the first cutter 47 includes an upper blade 53 and a lower blade 54, and when the slit plate 20 is inserted by a predetermined length, the upper blade 53 is moved downward to cut. In this first cutter 47, the upper blade 53 is adapted so that it can be adapted to the specifications of the heat exchanger.
The lower blade 54 and the lower blade 54 are mounted so that their positions can be changed along the guides 55a and 55b.

Then, a first vacuum suction device 48 is provided at the subsequent stage of the first cutter 47 so as to suck the slit plate 20 fed through the first cutter 47 from above. FIG. 7 shows a sectional view of the first vacuum suction device, and the configuration of the first vacuum suction device 48 will be described. First vacuum suction device 4
8 has a substantially rectangular cross section and has a suction plate 5 at the lower end surface.
7 includes a frame 56, a damper mechanism 58 provided in the frame 56, and a vacuum device (not shown) provided above the damper mechanism 58.

The damper mechanism 58 includes the first vacuum suction device 4
It is provided as a releasing means for releasing the adsorption state of No. 8. The damper mechanism 58 according to the present embodiment includes damper plates 59 and 59 fixed to rotating shafts 67 and 67 that are rotatably supported in the vertical direction, and the damper plates 59, at positions facing side surfaces of the frame 56. , 59 for operating the damper air cylinder 60, and is provided for controlling the suction force of the vacuum device provided above. A damper air cylinder 60 that operates the damper plates 59, 59 is connected to a rotating shaft 67 that fixes one damper plate 59, and the rotating shaft 67 and the damper plate 59 are rotated by pressing the damper air cylinder 60. . Further, the other damper plate 59 can simultaneously perform the same process by the connecting member 68 provided so that the one rotating shaft 67 and the other rotating shaft 67 rotate in opposite directions. The damper air cylinder 6
0 adjusts the air in the cylinder to adjust the damper plate 59,
Speed controller 7 for controlling the opening / closing speed of 59
0 is provided. Thereby, the damper plates 59, 5
It is possible to suppress the collision noise between the damper plate and the frame generated when opening and closing 9, and to set the opening and closing speed of the damper plate to a suitable speed.

The damper mechanism 58 includes the damper plate 5
9, 59 are substantially parallel to the side surface of the frame 56 (hereinafter,
By doing so, the slit plate is attracted to the suction plate 57, and the damper plates 59, 59 are made substantially vertical to the side surface of the frame 56 by the damper air cylinder 60 (hereinafter referred to as opening). The adsorption is released by controlling.

In using this device, when the slit plate 20 is fed to the lower surface of the first vacuum suction device 48,
The damper plates 59, 59 of the first vacuum suction device 48 are closed, the slit plate 20 is sucked, and the slit plate 20 is fed horizontally to the first vacuum suction device 48. Then, when the slit plate 20 is fed by a predetermined length, the feeding is stopped and the first cutter 47 cuts. Then, almost simultaneously with the cutting, the damper plates 59, 59 of the first vacuum suction device 48 are opened to release the suction of the vacuum device. As a result, the heat exchanger fins 10 with the slit plate 20 cut into a predetermined length fall, and are stacked and stacked on the first stacker 49 provided below the first vacuum suction device 48.

The first stacker 49, as shown in FIG.
It is configured such that the through holes 12 of the heat exchanger fins 10 are inserted into and stacked with a plurality of stack pins 62, ... Which extend in the vertical direction and whose lower ends are supported by the horizontal plate 61. Then, the heat exchanger fins 10 are added to the first stacker 49.
When a predetermined number of are filled, the slit plate 20 before being formed on the heat exchanger fins 10 is sent to the second stacking device 46.

The second laminating apparatus 46 of the present embodiment, the second
The cutter 50 and the second vacuum suction device 51 are configured similarly to the first cutter 47 shown in FIG. 6 and the first vacuum suction device 48 shown in FIG. 7, respectively, and the heat exchanger fins formed by these devices are used. 10 is stacked on the second stacker 52 and stacked. Further, as shown in FIG. 5, the second stacker 52 also has a horizontal plate 65, like the first stacker 49.
Stack pin 66 whose lower end is supported by horizontal plate 65 ..
And a heat exchanger fin 1 on the stack pin 66.
0s are provided so as to be stacked. Here, when the slit plate 20 is fed into the second stacking device 46, it is necessary to close the damper plates 59, 59 of the first vacuum suction device 48 to put them in a suction state.

When the heat exchanger fins 10 are continuously stacked by using the first stacking device 45 and the second stacking device 46 together, the control unit 6 controls the first stacking device 45 and the second stacking device 46.
3 need to be controlled. Control unit 63 of the present embodiment
Controls the first cutter 47, the first vacuum suction device 48, the second cutter 50, the second vacuum suction device 51, and the feeding device 23. More specifically, the feeding device 23 feeds the slit plate 20 into the first vacuum suction device 48 for a predetermined length, temporarily stops the operation of the feeding device 23, and cuts it by the first cutter 47. And at the same time as cutting
The damper plates 59, 59 provided in the vacuum suction device 48 are opened to drop the heat exchanger fins 10, and after the drop,
The damper plates 59, 59 are closed again to adsorb the slit plate 20, and the feed device 23 is operated again to control the slit plate 20 to be fed to the first vacuum adsorption device 48. After that, the heat exchanger fins 10 are added to the first stacker 49.
When the predetermined number of sheets are filled, the damper plates of the first vacuum suction device 48 and the second vacuum suction device 51 are closed so that the slit plate 20 is fed into the second stacking device 46, and the second vacuum suction device is closed. The same control as that of the first stacking device 45 is performed by the 51 and the second cutter 50, and the heat exchanger fins 10 are stacked and stacked on the second stacker 52. When changing the stack of fins for the heat exchanger from the second stacker to the first stacker, the first one fin has a space L1 between the first stacker and the second stacker.
Only a long defective product. Since this is at the bottom of the stacker, it can be removed in a proper way when taking out the fins from the stacker. Hereinafter, this cycle is sequentially repeated.

As described above, since the heat exchanger fins 10 can be continuously stacked by the control unit 63, it is not necessary to repeatedly turn ON / OFF the power of the manufacturing apparatus, and the energy consumption of the apparatus is suppressed. be able to.
Further, since the above-described feeding device 23 can feed the strip-shaped metal plate 17 continuously at a substantially constant speed,
It is possible to efficiently manufacture the heat exchanger fin 10 without lowering the processing accuracy. In the heat exchanger fin manufacturing apparatus of the present invention, a processing apparatus 64 shown in FIG. 1 is used which forms a slit plate provided with a through hole with a collar by integrating the pressing apparatus 22 and the post-processing apparatus 32. In the heat exchanger fin manufacturing apparatus of another embodiment shown in FIG. 8 as well, by providing the above-described laminating apparatus 25 in the laminating section into which the slit plates are fed, it is possible to obtain an effective effect according to the present invention. be able to.

Here, in this embodiment, a reverse feed mechanism for moving the slit plate 20 in the direction opposite to the transfer direction is provided. That is, when the stacker of the heat exchanger fins is changed from the second stacker 52 to the first stacker 49, as shown in FIG. 5, the tip position P2 of the slit plate 20 cut by the second cutter 50 and Since the tip position P3 of the slit plate 20 fed when being cut by the 1 cutter 47 does not match, the tip of the slit plate 20 is moved from the position P2 by the reverse feed mechanism in order to prevent the defective product from being produced. It is necessary to return to P3. Therefore, in the present embodiment, the feeding device 23 shown in FIG. 4 is provided with a reverse feeding mechanism. This controls a stepping motor (not shown) that rotates the drive wheel 39 of the feeding device 23 so that the feeding device 23 can perform both forward feeding and backward feeding.

The reverse feeding mechanism of the feeding device 23 is provided when the tip of the slit plate 20 is returned from the position P2 to the position P3 at the time when the stack of the heat exchanger fins is changed from the second stacker 52 to the first stacker 49. Only used. However, even when the reverse feeding mechanism of the feeding device 23 is operating, the pressing device 22 keeps the strip-shaped metal plate 17
Since the processing is performed on the sheet and the sheets are sequentially fed in the feed direction, a deviation occurs in the processing speed between the press device 22 and the post-processing device 32. Therefore, in the present embodiment, as described above, the space for bending and holding the strip-shaped metal plate 17 is provided between the pressing device 22 and the post-processing device 32. This is because when the strip-shaped metal plate 17 sent from the press device 22 by the sending device 28 is slightly bent and supplied to the post-processing device 32, a deviation occurs in the processing speed of the post-processing device 32 and the press device 22. Even if it is possible to deal with. As a result, even when the feeding device 23 temporarily reverses the feed, the strip-shaped metal plate 17 between the pressing device 22 and the post-processing device 32 bends and absorbs the deviation, so that the pressing device 22 is continuously operated. Can be activated.

In the heat exchanger fin manufacturing apparatus of the present invention, this reverse feed mechanism is not essential. For example, when the second stacker is changed to the first stacker, the tip position of the first stacking device is changed. It is also possible to provide a cutting mechanism at P3 and cut between the positions P2 and P3 to form the heat exchanger fins. Further, the reverse feeding mechanism is not limited to the one provided in the above-mentioned feeding device 23, but may be provided with an independent device for moving in the opposite direction, and the inclination of the feeding pin 27 of the feeding device 28. It is also possible to use a reverse feed mechanism by controlling the surface 27a to be reversed.

Further, in the heat exchanger fin manufacturing apparatus of the present embodiment, the slitter 24 is provided immediately before the feeding apparatus 23, but the invention is not limited to this. In this way, when the slitter 24 is arranged immediately before the feeding device 23, the reverse feeding mechanism provided in the feeding device 23 causes the slit plate 20 to be reinserted into the slitter 24 by the returning operation. Therefore, a slit is made at a position deviated from the position where it was once slit, so-called "beard".
May be formed. In order to prevent the formation of this “beard”, a slitter may be provided in the mold of the pressing device 22. At that time, instead of using a slitter as shown in FIG. 3, a cutting mechanism is provided at the end of the die of the pressing device 22 so that a slit is provided in the longitudinal direction of the strip-shaped metal plate. By providing the slitter on the die in this manner, when the slit plate is fed backward, the slit plate is held in a bent state and is not slit again, so that formation of "beard" can be prevented. However, when it is sent out from the press device 22, the strip-shaped metal plate 17
Since the slits are formed in the slits, there is a possibility that after that, there is a slight disadvantage in terms of smooth supply of the slit plate 20 to the post-processing device 32. In addition, the slitter 2 of the present embodiment
It is also possible to provide a bending portion for bending the slit plate 20 between the slit 4 and the feeding device 23 so as to prevent the slit plate 20 from being fed back to the slitter 24. In this case, the device becomes slightly larger.

In the present invention, it is indispensable to provide the first and second stacking devices (suction device, cutter, stacker), but further, if necessary, the third and fourth stacking devices. It goes without saying that the manufacturing apparatus in which the control unit controls these laminating apparatuses is also included in the technical scope of the present invention. In addition, in the present embodiment, the heat exchanger fins are louvered and hollowed, but these steps are not necessarily required. Therefore, a manufacturing apparatus without a louver molding die and a die for hollowing is also included in the technical scope of the present invention.

Furthermore, in the present embodiment, the above-mentioned feeding device 23 was used, but the apparatus for manufacturing a heat exchanger fin according to the present invention is not limited to this, and the above-mentioned feeding device 28, Alternatively, it is possible to use a device having a feeding function, which is appropriately selected in consideration of the facility cost, the installation area, the performance of the device, and the like. But,
Since the feeding device 23 in the present embodiment can move the slit plate 20 in the moving direction one after another by the moving unit 41 provided in a ring shape, it can continuously move at a constant speed, and As in the above-described feeding device 28, the sliding contact between the back surface of the strip-shaped metal plate 17 and the feeding pin 27 does not occur when the moving device 28 is moved.
It is possible to move the strip-shaped metal plate 17 without deforming it. Therefore, the fins for the heat exchanger can be manufactured extremely efficiently when used in combination with the laminating apparatus.

[0037]

As described above, according to the apparatus for manufacturing a fin for a heat exchanger according to the present invention, a slit plate having a row of through holes with a collar is cut into a predetermined length to stack two laminated parts in series. By arranging them one by one, it is possible to operate the manufacturing apparatus continuously without stopping. This makes it possible to improve the manufacturing efficiency of the heat exchanger fins and to manufacture the heat exchanger fins with high accuracy.

[Brief description of drawings]

FIG. 1 is a schematic view showing a configuration of an embodiment of a manufacturing apparatus for heat exchanger fins of the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a delivery device shown in FIG.

FIG. 3 is a vertical cross-sectional view showing the configuration of the slitter shown in FIG.

FIG. 4 is a side view showing the configuration of the feeding device shown in FIG.

5 is an explanatory diagram showing a configuration of the laminating apparatus shown in FIG.

FIG. 6 is an explanatory diagram showing a configuration of a first cutter and a second cutter shown in FIG.

7 is a vertical cross-sectional view showing the internal configuration of the first vacuum suction device and the second vacuum suction device shown in FIG.

FIG. 8 is a schematic view showing the configuration of another embodiment of the heat exchanger fin manufacturing apparatus of the present invention.

FIG. 9 is an explanatory diagram for explaining a heat exchanger fin.

FIG. 10 is an explanatory diagram for explaining the method for manufacturing the heat exchanger fin shown in FIG. 9.

FIG. 11 is a schematic diagram showing a configuration of a conventional heat exchanger fin manufacturing apparatus.

[Explanation of symbols]

10 heat exchanger fins 12 colored through holes 17 Strip metal plate 20 slit plate 21 Heat Exchanger Fin Manufacturing Equipment 22 Press machine 23 Feeder 24 slitters 25 Laminating device 27 Sending pin 28 Sending device 32 Post-processing equipment 38 Moving plate 40 feed pin 45 First Laminating Device 46 Second Laminating Device 47 1st cutter 48 First vacuum suction device 49 First Stacker 50 Second cutter 51 Second vacuum suction device 52 Second Stacker 58 Damper mechanism 63 control unit

Claims (6)

[Claims] 1. A plurality of through holes with collars, each of which has a plurality of through holes each having a collar of a predetermined height on the periphery thereof and which are formed in the longitudinal direction of the strip-shaped metal plate, are arranged in parallel to the width direction of the strip-shaped metal plate. A press device equipped with a die for forming a row, a slitter for slitting between the rows of through holes with collars in the longitudinal direction of the strip-shaped metal plate, and slitting a strip-shaped metal plate having a row of through holes with collars by the slitter. A first suction device for sucking the slit plate, and a first cutting device for cutting the slit plate sucked by the first suction device into a predetermined length.
A cutter and a first stacker for releasing the heat exchanger fins obtained by cutting the slit plate by the first cutter after releasing the adsorption of the first adsorption device and stacking and stacking them A second suction device that is provided with the slit plate that is sucked by the first suction device and is moved by the feeding device without being cut by the first cutter, and the slit plate that is sucked by the second suction device. A second cutter that cuts into a predetermined length,
A heat exchanger fin obtained by cutting the slit plate with the second cutter, releasing the adsorption of the second adsorption device, dropping the fin, and stacking and stacking the second stacker; and When a predetermined number of heat exchanger fins are stacked on one of the first stacker and the second stacker, the heat exchanger fins are stacked on the other stacker,
An apparatus for manufacturing fins for heat exchangers, comprising a control unit for controlling the first cutter, the first adsorption device, the second cutter, and the second adsorption device. 2. A reverse feed mechanism for feeding the slit plate in a direction opposite to the transfer direction is provided.
An apparatus for producing a fin for a heat exchanger as described. 3. The heat exchanger fin manufacturing apparatus according to claim 2, wherein the reverse feed mechanism is provided in the feed device. 4. Between the pressing device and the feeding device,
The heat exchanger fin manufacturing apparatus according to claim 1, 2 or 3, wherein a space for bending and holding the strip-shaped metal plate is provided. 5. The heat exchanger fin manufacturing device according to claim 1, wherein the slitter is provided immediately before the feeding device. 6. The heat exchanger fin manufacturing apparatus according to claim 1, wherein the slitter is provided in the pressing device.