JPH0647457A - Roll for forming multi corrugate fin - Google Patents

Abstract

PURPOSE:To form plural numbers of corrugate fine with a proper width from a sheet of belt like metal plate by classifying plural element group by a proper interval in the direction of multi element laminated layer, and mutually slipping phases of adjoining element groups in the circumferential direction. CONSTITUTION:A fin cut surface 4 is formed in the boundary of each element group A, C by advancing the phase of an element group B as a total. Then, the phase of each element group of a forming roll by coordinating the forming roll 1. When a sheet of belt-like metal plate 3 is supplied in a pair of forming rolls, the belt-like metal plate 3 is cut at the boundary of the element group A and the element group B due to the existence of the fin cut surface 4, then plural corrugate fins 5 are formed at the same time. Therefore, the mass- productivity is improved, and more the corrugate fin with the required width can be produced by adjusting the forming element numbers included in each element group.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forming roll capable of simultaneously producing a plurality of corrugated fins having an appropriate width by supplying one strip-shaped metal plate.

[0002]

2. Description of the Related Art Conventionally, in order to manufacture a corrugated fin with a forming roll, a long metal plate cut to the width of the corrugated fin to be manufactured in advance is supplied, and one corrugated fin is used with one forming roll. I was making it.

[0003]

Needless to say, if a large number of relatively small corrugated fins can be manufactured simultaneously with a pair of forming rolls, the productivity will be dramatically improved. Therefore, the present invention has the following configuration in order to solve such a problem.

[0004]

[Means for Solving the Problems] The forming roll of the present invention comprises:
A plurality of thin disk-shaped forming elements each having forming teeth formed on the outer circumference are coaxially laminated to form a pair of forming rolls 1 and 2 which mesh with each other. In such a forming roll for forming the corrugated fins 5 by supplying the strip-shaped metal plate 3 between the pair of forming rolls, a large number of laminated forming elements are arranged at appropriate intervals in the stacking direction. ~ Classify by C. Further, it is characterized in that adjacent element groups are circumferentially displaced from each other in phase and the fin cutting surface 4 is formed at a boundary between the element groups.

[0005]

Therefore, according to the forming roll of the present invention, it is possible to simultaneously produce a plurality of corrugated fins having an arbitrary width depending on where the boundary of each element group is set.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a schematic view showing an example of a corrugated fin manufactured by the main forming roll, and FIG. 2 is an enlarged view of a tooth portion of a pair of forming rolls 1 and 2 used for forming the corrugated fin. 3 is a schematic side view of the spaces A and B between the elements, FIG. 4 is a conceptual view of forming by the main forming roll, and FIG. 5 is a cutting state of the corrugated fins 5 at the boundary of each element group. 6 is a schematic sectional view taken along line IV-IV in FIG. In the forming roll of this embodiment, when the pair of forming rolls 1 and 2 rotate in a positional relationship where they mesh with each other as shown in FIG. 4, the corrugated fins 5 are manufactured by supplying the strip-shaped metal plate 3 between them. It is what is done.

Each of the forming rolls 1 and 2 is shown in FIGS.
As shown in FIG.
37 and others and U1 to U37 and others are laminated. As shown in FIG. 4, on the outer periphery of each molding element,
A large number of molding teeth are formed. The tip surface of the forming tooth is flat such as L1, L18 and the like in FIG. 2 and has a sawtooth shape such as L3 and the like. What is formed in a saw-tooth shape is a portion forming the louver 6 shown in FIGS. 1 and 6. The louvers 6 are diagonally cut in parallel with each other in the multiple width direction between the corrugated fins 5 except for the tops 7 and the valleys 8. Each forming roll 1 and 2 is shown in FIGS.
As shown in FIG. 3, each of the element groups A to C is divided in the stacking direction, and in this embodiment, the element group B located in the middle has a phase in the circumferential direction with respect to the other element groups A and C. A little advanced. For example, about 1 mm is sufficient for this phase difference.

In this way, by advancing the phase of the element group B as a whole, the fin cutting surface 4 is formed at the boundary of each element group. Then, the phases of the respective element groups of the forming roll 2 are shifted in alignment with the forming roll 1. In this embodiment, the element group A in FIG.
Are L1 to L18, and the forming roll 2 meshed with them.
Is U1 to U18. The element group B is L19-
L36, and the element group of the forming roll 2 meshing with it is U19 to U36. And the element group C
Is L37 or more, and the element group of the forming roll 2 meshing with it is similarly U37 or more. put it here,
The fin cutting surface 4 is formed on the side end surface of L19 and the side end surface of U18. Similarly, the fin cutting surface 4 is also formed on the side end surfaces of L36 and U37. When one strip-shaped metal plate 3 is supplied to the pair of forming rolls 1 and 2 in such a state, the strip-shaped metal plate 3 is provided at the boundary between the element group A and the element group B by the presence of the fin cutting surface 4 as shown in FIG. Metal plate 3
Is disconnected. Thereby, as shown in FIG. 1, in this embodiment, three corrugated fins 5 are simultaneously formed.

[0009]

According to the forming roll of the present invention, a plurality of element groups are sectioned at appropriate intervals in the stacking direction of a large number of elements, and adjacent element groups are phase-shifted from each other in the circumferential direction. Since the fin cutting surface 4 is formed at the boundary, a plurality of corrugated fins of appropriate width can be simultaneously manufactured from one strip-shaped metal plate with an extremely simple structure. As a result, the mass productivity is increased and the conventional forming roll can be used as it is, which can contribute to the reduction of the equipment cost. Moreover,
By adjusting the number of forming elements included in each element group, a corrugated fin having a desired width can be formed.

[Brief description of drawings]

FIG. 1 is a production conceptual diagram of a plurality of corrugated fins 5 produced by a forming roll of the present invention.

FIG. 2 is a cross-sectional view of forming teeth of a pair of forming rolls 1 and 2.

FIG. 3 is a side view of an element group A and an element group B in the same molding tooth.

FIG. 4 is a conceptual diagram of a corrugated fin 5 manufactured from a strip-shaped metal plate 3 by a pair of forming rolls 1 and 2.

FIG. 5 is a band-shaped metal plate 3 at the boundary of each element group.
Explanatory cross-sectional view showing a cut state of.

6 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 1, 2 forming rolls 3 strip-shaped metal plate 4 fin cutting surface 5 corrugated fins 6 louver 7 top 8 valley

Claims (1)

[Claims] 1. A large number of thin disk-shaped forming elements (L1 to L37, U1 to U) each having forming teeth formed on the outer periphery thereof.
37) is coaxially laminated to form a pair of forming rolls 1 and 2 that mesh with each other, and the corrugated fins 5 are formed by supplying the strip-shaped metal plate 3 between the pair of forming rolls. The plurality of molding elements are arranged at appropriate intervals in the stacking direction to form a plurality of element groups A.
Forming rolls of multi-row corrugated fins in which fin cutting surfaces 4 are formed at the boundaries of each element group by dividing the adjacent element groups in the circumferential direction with respect to each other.