JP2002102939A - Corrugated fin manufacturing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely perform pitch-squeezing of corrugated fin material in regard to a corrugated fin manufacturing apparatus manufacturing a corrugated fin used for a heat exchanger such as a radiator and the like. SOLUTION: A pitch-squeezing unit is provided with a cylindrical pushing member 41, in which the outer periphery is brought into contact with a top portion of corrugated material 23 that is freely rotated around a axis line 51 parallel to the top portion of the corrugated fin material 23, a supporting means 53 supporting the pushing member 41, and an urging means 71 urging the pushing member 41 toward the top portion of the corrugated fin material 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated fin manufacturing apparatus for manufacturing a corrugated fin used in a heat exchanger such as a radiator.

[0002]

2. Description of the Related Art A corrugated fin manufacturing apparatus for manufacturing a corrugated fin used in a heat exchanger such as a radiator is disclosed in, for example, Japanese Patent Application Laid-Open No. 9-271872. FIG. 7 shows a corrugated fin manufacturing apparatus of this type. In this apparatus, a fin material 2 wound around a coil 1 is supplied to a tension applying device 3 and given a predetermined tension. It is corrugated by a pair of corrugated cutters 5 of the processing device 4 and formed into a corrugated shape.

[0003] After that, the corrugated fin material 3 is supplied to a delivery device 6 and delivered downstream, and the height of the waves is corrected while passing through a space 9 between a pair of projection plates. On the downstream side of the feeding device 6, a pitch filling device 10 is arranged, and the wavy fin material 3 continuously supplied from the feeding device 6 is braked by the pressing plate 11, and is upstream of the pressing plate 11. On the side, the pitch of the wavy fin material 3 is reduced to a predetermined pitch.

When the wavy fin material 3 passes through the pressing plate 11, the fin material 3 is restored to a pitch substantially equal to the pitch of the corrugated fins 8 to be manufactured by the elastic force of the fin material 3, and is sent downstream. On the downstream side, a counting worm 12 for counting the pitch of the wavy fin material 3 is arranged. When the pitch number of the fin material 3 reaches a predetermined value, the cutting device 1
3, the fin material 3 is cut into a predetermined length by the pair of cutting blades 14, and a desired corrugated fin 8 is manufactured.

[0005]

However, in such a corrugated fin manufacturing apparatus, when the forming speed of the corrugated fin 8, that is, the feed speed of the fin material 3, is changed, the corrugated fin 8 passes through the pressing plate 11 of the pitch filling device 10. There is a problem that the pitch of the wavy fin material 3 changes.

The inventor of the present invention has made intensive studies to solve such a conventional problem, and as a result, as shown in FIG. 8, the pitch filling device 10 has the tip of the pressing plate 11 caught on the top of the wavy fin material 3. It has been found that the fin material 3 is configured to be braked by a force other than the frictional force caused by the vertical pressing of the spring 15. That is, in the conventional pitch filling device 10, a brake is applied to the fin material 3 due to friction between the tip of the pressing plate 11 and the transfer surface 16 and the wavy fin material 3. Press plate 1
The tip of 1 is hooked, and a force acts in the same direction as the friction force.

[0007] However, it is considered that this force greatly changes when the feed speed of the fin material 3 changes, which makes it difficult to reduce the pitch of the wavy fin material 3 uniformly. The present invention has been made based on such knowledge, and an object of the present invention is to provide a corrugated fin manufacturing apparatus capable of reliably filling a pitch of a wavy fin material.

[0008]

According to a first aspect of the present invention, there is provided a corrugated fin manufacturing apparatus for forming a corrugated fin material continuously into a corrugated shape, and a corrugated fin material continuously supplied from the corrugated fining device. A feeding device that feeds downstream toward forming the pitch of the fin material to be substantially the same as the pitch of the corrugated fin to be manufactured,
In a corrugated fin manufacturing apparatus having a pitch filling device that packs a pitch of a wavy fin material continuously supplied from the feeding device to a predetermined pitch, the pitch filling device has an outer periphery at a top of the wavy fin material. A cylindrical pressing member which is in contact with and is rotatable about an axis parallel to the top of the wavy fin material, supporting means for supporting the pressing member, and And a biasing means for biasing toward the top.

According to a second aspect of the present invention, there is provided a corrugated fin manufacturing apparatus.
2. The corrugated fin manufacturing apparatus according to claim 1, wherein the urging means urges the pressing member at a predetermined angle toward an upstream side of the wavy fin material. According to the third aspect of the present invention, there is provided a corrugated fin manufacturing apparatus.
Alternatively, in the corrugated fin manufacturing apparatus according to claim 2, the pressing member is formed of a radial bearing.

(Function) In the corrugated fin manufacturing apparatus according to the first aspect, the cylindrical pressing member of the pitch filling device is rotatable about an axis parallel to the top of the wavy fin material. The outer periphery is brought into contact with the top of the wavy fin material, and is pressed toward the top of the wavy fin material by the urging means.

The pressing of the pressing member causes a brake to act on the fin material, and the pitch of the wavy fin material is reduced. However, since the pressing member is rotatable, the pressing member is at the top of the wavy fin material. It will not be caught by the unevenness of the surface. Therefore, even when the feed speed of the fin material changes, the force acting on the wavy fin material does not greatly change, whereby the pitch of the wavy fin material can be reduced uniformly.

In the corrugated fin manufacturing apparatus of the second aspect, the urging means urges the pressing member at a predetermined angle toward the upstream side of the corrugated fin material. In the corrugated fin manufacturing apparatus according to the third aspect, a radial bearing is used for the pressing member.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the corrugated fin manufacturing apparatus of the present invention. In the corrugated fin manufacturing apparatus of this embodiment, the aluminum fin material 23 wound around the coil 21 is supplied to the tension applying device 25 and given a predetermined tension. It is corrugated by the cutter 29 and formed into a corrugated shape.

Thereafter, the corrugated fin material 23 is supplied to a feeding device 31, and the pitch of the corrugated fin material 23 is made substantially equal to the pitch of the corrugated fin 35 to be manufactured by a pair of feeding rolls 33. Molded. In this embodiment, the corrugated fin 35 has a rectangular waveform. Then, the height of the wave is corrected while passing through the space 37 between the pair of protrusion plates, and the wave is sent downstream.

A pitch filling device 39 is disposed downstream of the delivery device 31, and the wavy fin material 23 continuously supplied from the delivery device 31 is braked by a circular pressing member 41. On the upstream side of the pressing member 41, the pitch of the rectangular wave-shaped fin members 23 is reduced to a predetermined pitch. When the rectangular wave-shaped fin material 23 passes through the pressing member 41, the fin material 23 is restored to a pitch substantially equal to the pitch of the corrugated fin 35 to be manufactured by the elastic force of the fin material 23, and is sent downstream.

On the downstream side, a pair of counting worms 43 for counting the pitch of the rectangular wave-shaped fin members 23 are disposed. When the pitch number of the rectangular wave-shaped fin members 23 reaches a predetermined value, the cutting device is used. The fin material 23 is cut into a predetermined length by the pair of cutting blades 47, and the corrugated fin 35 having a desired rectangular waveform is manufactured.

FIGS. 2 and 3 show the details of the above-described pitch filling device 39. FIG. In these figures, reference numeral 4
Reference numeral 1 denotes a cylindrical pressing member. This pressing member 4
For 1, a commercially available radial bearing is used.
The pressing member 41 has an outer periphery in contact with the top of the wavy fin material 23 and is rotatable about a support shaft 51 parallel to the top of the wavy fin material 23.

The support shaft 51 has a U-shaped support member 53.
It is supported by. The support member 53 is fixed to the guide member 57 via the connecting member 55. The guide member 57 is
The fin member 23 is slidable along a guide portion 61 of a main body member 59 arranged on the side of the transport surface 60. A bracket 63 is fixed to the main body member 59 in a direction perpendicular to the main body member 59.

The bracket 63 has a screw hole 63a. A pressing force adjusting bolt 65 for adjusting the pressing force of the pressing member 41 is screwed into the screw hole 63a. A connecting member 67 is fixed to the inner surface of the bracket 63, and one end of a cylindrical spring guide 69 is fixed to the connecting member 67.

The tip of a pressing force adjusting bolt 65 is inserted into the spring guide 69. Pressing force adjusting bolt 6
5 between the pin member 65a at the tip and the support member 53,
An urging means 71 composed of a coil spring is arranged. Half of the urging means 71 composed of a coil spring
It is housed in a spring guide 69.

In this embodiment, the main body member 59
Is inclined at an angle of 45 degrees with respect to the horizontal, and the pressing member 41 is urged at an angle θ of 45 degrees toward the upstream side of the wavy fin material 23. In the corrugated fin manufacturing device described above, as shown in FIG. 4, the circular pressing member 41 of the pitch filling device 39 is rotatable about a support shaft 51 parallel to the top of the wavy fin material 23, The pressing member 41 has its outer periphery in contact with the top of the wavy fin material 23, and is pressed by the urging means 71 toward the top of the wavy fin material 23.

The pressing of the pressing member 41 causes a brake to act on the fin material 23, and the pitch of the wavy fin material 23 is reduced. However, since the pressing member 41 is rotatable, the pressing member 41 becomes wavy. Of the fin material 23 is not caught by the top and bottom. Therefore, the fin material 2
Even when the feed speed of No. 3 changes, the force acting on the fin members 23 does not greatly change, and the pitch of the wavy fin members 23 can be reduced uniformly.

In the corrugated fin manufacturing apparatus described above, the pressing member 41 is urged by the urging means 71 at an angle θ of 45 degrees toward the upstream side of the corrugated fin material 23. It is possible to prevent the pitch of the wavy fin material 23 that has passed from being disturbed. That is,
In the conventional corrugated fin manufacturing apparatus, the pitch of the rectangular corrugated fin material 2 that has passed through the pressing plate 11 is disturbed in a part thereof, as shown in FIG. Thus, it is possible to reliably prevent such a phenomenon from occurring.

In the corrugated fin manufacturing apparatus described above, since the radial bearing is used as the pressing member 41, the rotating member has a small rotational resistance and a high rotational accuracy.
Can be obtained easily and reliably. In the above-described embodiment, an example in which the pressing member 41 is biased at an angle θ of 45 degrees toward the upstream side of the wavy fin material 23 has been described, but the present invention is not limited to such an embodiment. Instead, for example, it may be configured to urge at an angle θ in the range of 20 degrees to 45 degrees.

In the above-described embodiment, the pressing member 4
1 has been described at a predetermined angle toward the upstream side of the wavy fin material 23, but the present invention is not limited to such an embodiment. For example, as shown in FIG. The urging means 71A may be configured to press the pressing member 41 from a direction perpendicular to the moving direction of the wavy fin material 23.

[0027]

As described above, in the corrugated fin manufacturing apparatus of the first aspect, since the pressing member is rotatable, the pressing member does not get caught on the unevenness of the top of the wavy fin material. Even when the feed speed of the fin material changes, the force acting on the fin material does not greatly change, and the pitch of the wavy fin material can be reliably reduced.

In the corrugated fin manufacturing apparatus according to the second aspect, since the urging means urges the pressing member at a predetermined angle toward the upstream side of the wavy fin material, the wavy fin material passing through the pressing member is urged. Can be prevented from being disturbed. In the corrugated fin manufacturing apparatus according to the third aspect, since the radial bearing is used as the pressing member, it is possible to easily and surely obtain a pressing member having small rotation resistance and high rotation accuracy.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of a corrugated fin manufacturing apparatus according to the present invention.

FIG. 2 is a perspective view showing the pitch filling device of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is an explanatory view showing the operation of the pitch filling device of FIG.

FIG. 5 is an explanatory diagram showing a pitch disturbance generated in a wavy fin material.

FIG. 6 is an explanatory view showing another example of the pitch filling device of the present invention.

FIG. 7 is an explanatory view showing a conventional corrugated fin manufacturing apparatus.

FIG. 8 is an explanatory diagram showing the pitch filling device of FIG. 7;

[Explanation of symbols]

 Reference Signs List 23 Fin material 27 Corrugating device 31 Feeding device 35 Corrugated fin 39 Pitch filling device 41 Pressing member 51 Support shaft 53 Support member 71, 71A biasing means

Claims (3)

[Claims] 1. A corrugating device (27) for forming a continuously supplied fin material (23) into a wavy shape, and a corrugated fin material (23) continuously supplied from the corrugating device (27). A feeding device (31) for feeding downstream in order to form the same pitch as the pitch of the corrugated fins (35) to be manufactured.
A corrugated fin manufacturing device comprising: a pitch filling device (39) for reducing the pitch of the wavy fin material (23) continuously supplied from the delivery device (31) to a predetermined pitch. (39) An axis (51) whose outer periphery is in contact with the top of the wavy fin material (23) and is parallel to the top of the wavy fin material (23).
Cylindrical pressing member (4
1), support means (53) for supporting the pressing member (41), and urging means (71) for urging the pressing member (41) toward the top of the wavy fin material (23). A corrugated fin manufacturing apparatus, comprising: 2. The corrugated fin manufacturing apparatus according to claim 1, wherein the urging means (71) moves the pressing member (41) at a predetermined angle toward an upstream side of the wavy fin material (23). A corrugated fin manufacturing apparatus characterized in that it is energized by: 3. The corrugated fin manufacturing apparatus according to claim 1, wherein the pressing member (41) is formed of a radial bearing.