JPH04266440A - Rotational forming machine for heat exchanger fin - Google Patents

Abstract

PURPOSE:To provide a forming machine for a heat exchanger fin possible to change a working pattern continuously through simple control in a small space. CONSTITUTION:In opposition to rotating tool (A)1 wherein a plurality of forming tools 2, 3, 4 different in shape are embedded on the circumference part of a vertically movable body of rotation is provided a rotating tool (B)5 wherein a plurality of forming tools 6, 7, 8 different in shape corresponding to said forming tools 2, 3, 4 are buried on the circumference part of a vertically movable body of rotation and this fin is formed by a pair of corresponding forming tools.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger fin forming apparatus.

0002

2. Description of the Related Art In recent years, with the spread of air conditioners, there has been an increasing demand for a molding apparatus that can easily mold heat exchanger fins used in air conditioners.

An example of a conventional heat exchanger fin forming apparatus will be described below with reference to FIGS. 2 and 3.

As shown in the figure, an upper base 51 and a lower base 52 are positioned by guide posts 53 and guide bushes 54 and are movable up and down, and lower forming tools 55, 56,
57 is fixed to the lower base 52, and the lower forming tools 55, 5
Upper forming tools 58, 59, 60 are provided opposite punch plates 6, 57.
It is fixed at 1, 62, and 63. Further, the punch plates 61, 62, 63 are lifted upward by springs 64, 65, 66 via hanging bolts 67, 68, 69,
Vertical positioning is performed by 70, 71, 72 and movable cams 73, 74, 75. And cylinder 7
6, 77, 78 are fixed to the upper base 1, and movable cams 73,
74 and 75 are provided so as to be moved left and right. Also,
79 is a material, and 80 is a feeding device. Next, the operation of the heat exchanger fin forming apparatus configured as above will be explained. FIG. 2 shows the state of the heat exchanger fin forming apparatus at the top dead center. From this state, the upper base 51 descends and the upper forming tools 58, 59, 60 and the lower forming tool 55 are moved to the bottom dead center. , 56 and 57, the material 79 is sandwiched as shown in FIG. 3, and molded products as shown in FIGS. 5(a), 5(b), and 5(c) are formed, respectively. If these formations are not performed, the movable cams 73, 74, 75 move to the left by pulling the cylinders 76, 77, 78, and the spring 6
Punch plates 61, 62, 6 by 4, 65, 66
3 upward so that the material 79 is not caught even when it is at the bottom dead center as shown in FIG. By performing the above-described operations intermittently, it was possible to form various patterns.

[0005]

[Problem to be Solved by the Invention] Such a conventional heat exchanger fin forming apparatus requires a plurality of forming tools in parallel, a pair of lower forming tools 55, 56, 57 and upper forming tools 58, 59, 60. Therefore, a large installation space is required. In addition, the intermittent operation not only requires complicated control, but also has the problem that it is impossible to continuously change the machining pattern at irregular pitches. The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a heat exchanger fin forming apparatus that is space-saving and capable of continuously changing processing patterns through simple control.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the heat exchanger fin forming apparatus of the present invention is a rotating body in which a plurality of forming tools of different shapes are embedded in the circumference of a rotary body that can move up and down. A tool (A) and a rotary tool (B) in which a plurality of molding tools having different shapes corresponding to the molding tool are embedded in the circumferential part of a rotary body arranged opposite to the rotary tool (A) and movable up and down.
), and includes a driving means for intermittently rotating the rotary tools (A) and (B) and stopping them at a pair of forming tools, and a means for guiding the movement of one or both of the rotary tools so that they can collide with each other. be.

[0007]

[Operation] With the above-described configuration, the present invention synchronizes with the intermittent rotational movement of the rotary tool (A), causes the rotary tool (B) to perform intermittent rotational movement, and forms the forming tools of the rotary tool (A) and the rotary tool (B). When the movement is completed to a position where they can collide, the rotary tool (A) descends, sandwiches the materials, and performs the forming process, respectively.
When the machining is completed, the rotary tool (A) is raised and the next forming tool is moved to perform machining, so that the machining pattern can be continuously controlled with simple control in a space-saving manner.

[0008]

[Embodiment] A heat exchanger fin forming apparatus according to an embodiment of the present invention will be described below with reference to FIG. As shown in the figure, a rotary tool (A) 1 serving as an upper roll is provided by a driving means to enable intermittent rotational movement and vertical movement, and an upper forming tool 2
, 3, and 4 are fixed, and lower forming tools 6, 7, and 8 are fixed to a rotary tool B5, which serves as a lower roll capable of intermittent rotational movement. Further, 9 is a material, and 10 is a feeding device. Next, the operation of the heat exchanger fin forming apparatus configured as described above will be explained. Upper forming tool 23 and lower forming tool 6, upper forming tool 3 and lower forming tool 7, upper forming tool 4 and lower forming tool 8
are a pair of forming tools, and the rotating tool (B) 5 synchronizes with the intermittent rotational movement of the rotating tool (A) 1, and the rotating tool (B) 5 moves intermittently, and the forming tools of the rotating tool (A) 1 and the rotating tool (B) 5 collide. When the rotational movement to the possible position is completed, the rotary tool (A) 1 descends and inserts the material 9, as shown in Figs. 5(a) and 5(b), respectively.
, a molded product as shown in FIG. 5(c) is formed. When the forming process is completed, the rotary tool (A) 1 is raised, and the forming tool for the next process is intermittently rotated to a position where it can collide. By the start of processing, the material 9 is moved to the position where the next processing will be performed using the feeding device 10. By performing the above operations continuously and intermittently, the machining pattern can be continuously changed by simple control.

[0009]

[Effects of the Invention] As is clear from the above embodiments, according to the present invention, a pair of rotary tools provided with a plurality of processing tools are intermittently rotated to sequentially process a molded product. It is possible to provide a rotary molding device for heat exchanger fins that not only allows continuous change through control but also reduces the installation space of the device.

[Brief explanation of the drawing]

FIG. 1: Top dead center side view of a heat exchanger fin forming apparatus in an embodiment of the present invention.

[Figure 2] Top dead center side view of conventional heat exchanger fin forming device

[Figure 3] Bottom dead center side view when processing the heat exchanger fin forming device

[Figure 4] Bottom dead center side view of the heat exchanger fin forming device without processing

[Fig. 5] (a) is a perspective view of the heat exchanger fin molded product (a); (b) is a perspective view of the heat exchanger fin molded product (b);
is a perspective view of the heat exchanger fin molded product (c)

[Explanation of symbols]

1 Rotary tool (A) 2, 3, 4 Upper forming tool 5 Rotary tool (B) 6, 7, 8 Lower forming tool

Claims (1)

[Claims] Claims 1: A rotary tool (A) in which a plurality of molding tools of different shapes are embedded in the circumference of a rotary body that is movable up and down; A rotary tool (B) in which a plurality of molding tools having different shapes corresponding to the molding tool are embedded in the circumferential part of the body, and the rotary tool (A) and the rotary tool (B) are intermittently rotated to form a pair. A rotary molding apparatus for heat exchanger fins, comprising a drive means for stopping the tools in a corresponding state, and a means for movably guiding one or both of the rotary tools so as to collide with each other.