JPS58184448A - Manufacture of solar heat collecting plate and device therefor - Google Patents

Abstract

PURPOSE:To simplify the work of fixing water pipes and to save labor by making a series of working steps into line production system by a method wherein a continuous water pipe material is fixed to an elongated continuous heat collecting plate material and then the heat collecting plate material and the pipe material are cut at every predetermined length. CONSTITUTION:The plate material A is supplied to a press 17 by means of a roll feeder 16 and square holes 22 are drilled at every predetermined interval l in the intermediate part of the width W' of the material A. The interval l is equal to the length l of each of the water pipes shown in Fig. 1. Further, curved sections 2 of the material A which open upward are formed in sequence by a roll forming device 18 and after the formation of the curved sections 2, the material A is supplied to a device 19 so that the pipe material B are press-fitted into the curved sections 2 from upward by the device 19. The material A fed out from the device 19 has its fin A1 cut and is severed to form each of heat collecting plate units 1 while the units 1 are supplied to a device 21 in sequence in a condition in which they are connected to one another by the pipe material B. Then the device 21 cuts the intermediate part of a pipe section B1 so that the water pipes each having the predetermined length l are formed in sequence from the material B to thereby complete the solar heat collecting plate.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a method and apparatus for manufacturing a solar heat collecting plate with fixed water pipes.

In conventional solar heat collecting plates, it may not be possible to install water pipes such as copper pipes in the grooves of the heat collecting plate body made of extruded aluminum. Furthermore, since the thickness of the main heat collecting plate cannot normally be reduced to 0.3 mm or less, it is impossible to reduce the weight and the material cost increases. Instead of the above method, a thin aluminum plate with grooves is cut by roll forming (molding process) K to form the main body of the heat collecting plate, and a water pipe is fitted into the groove. In this case, the water pipes had to be fixed to each heat collecting plate one by one, making it impossible to save labor and thus making it impossible to reduce manufacturing costs.

In order to solve the above-mentioned conventional problems, the present invention improves the manufacturing method and equipment, fixes a continuous water passage A-vee to a long and continuous heat collection plate material, and then fixes the heat collection plate material and pipes. It is a Kl ~ to cut at predetermined lengths,
The explanation is as follows with reference to the drawings.

First, the heat collecting plate after assembly will be explained with reference to FIGS. 1 to 3. In FIG. 1, the heat collecting plate main body 1 includes a curved portion 2 at the middle portion in the width W direction, and the curved portion 2 extends over the entire length of the heat collecting plate main body 1.

As shown in FIG. 2 (A) or ←), which is an enlarged partial view of the l-l cross section in FIG. are mated. 6
is a bead neck (constriction) formed at the boundary between the curved part 2 and the main body flat part 7, and the bead neck 6 connects the water pipe 5.
is firmly fixed within the groove 8. As shown in FIG. 1, the length l (for example, 1986 mm) of the water pipe 5 is slightly longer than the length L (for example, 1900 mm) of the main body, and both ends of the water pipe 5 protrude from the curved portion 2 by a distance L'. The heat collecting plate 8 with the water pipe 5 fixed to the main body 1 as described above is shown in the eighth figure in the plan view.
As shown in the figure, a plurality of pipes are arranged on the same plane, and the side edges 9 of the main body 1 in the same direction are fixed to each other, and both ends of the water pipe 5 are connected to the header pipe lO, and will be installed in

Next, a method and apparatus for manufacturing the heat collecting plate 8 will be explained.

In Fig. 4, which is a schematic side view, a indicates the coil ρ of the heat collecting plate material A (main body material) made of a thin aluminum plate, F indicates the direction in which the elongated and continuous heat collecting plate material A is pulled out from the coil/va, and b indicates the water pipe. This is a coil for a pipe B (for example, a copper pipe or an aluminum pipe).The illustrated device is a leveler 15, a roll feeder 16, a square hole processing press 17 (the hole forming device is a ),
It is equipped with a roll forming device 18, a pipe press-fitting device 19 (pipe fixing device), a continuous fin section notch press 20 (notch cutting device), and a pipe cutting device 21, and in addition to the roll feeder 16 (not shown). Material A
and a device for transporting pipe B in the upward direction of the arrow.

Material A has a thickness of, for example, OJI: 4 mm to 0.6 mm, and is subjected to surface treatment to increase heat collection efficiency before being wound up as a carp fi/a. As the surface treatment method, any of the following methods is employed, such as selective absorption io shadow formation by continuous alumite treatment, formation of a selective absorption film by continuous plating (black chrome) treatment, selective absorption film coating, and black painting. Note that it is also possible to use a carp A/a that has not been surface-treated and to perform surface treatment after the heat collecting plate is completed as described later.

The leveler 15 is a device for flattening the material A drawn from the coil a, and the material A discharged from the leveler 15 is fed to a press 17 by a roll feeder 16. As shown in Fig. 5, which is a schematic view taken along the line V-V in Fig. 4,
The press 17 is configured to open square holes 22 at regular intervals l in the middle part of the continuous material A in the width direction W°.

The interval l in Figure 5 matches the water pipe length lζ in Figure 1.

The length Ll of the square holes 22 in FIG. 5 is determined so that the length L of the material between the two square holes 22% 22 matches the length L of the heat collecting plate main body in FIG. Further, the material width W° (coil width) in FIG. 5 is determined so that the material width W after forming the curved portion 2, which will be described next, matches the width W of the heat collecting plate body shown in FIG.

The curved portion 2 is continuously formed in an upwardly open shape by the roll forming device 18 shown in FIG.
．． 22 (widthwise middle part). The material A after forming the curved portion is sent to a device 19, and the pipe B pulled out from the carp yb is press-fitted and fixed into the curved portion 2 from above by the device 19. Therefore, the raw material A sent out from the device 19 has a structure in which the continuous pipe B is held by the curved portion 2, and the entire circumference of the pipe B is exposed at the portion B0 passing through the square hole 22. In addition, a gap 25 is formed between the portion B0 and the side edge 28 of the square hole, which facilitates the notching operation using the press 20.The portion shown by hatching A1 in FIG. 5 is the square hole 22. The material A sent out from the device 19 is cut out by the press 20 into the fin portion A1 on the side of the material width direction, and is separated into heat collecting plate books Kl.
The heat collecting plate main body 1 is connected to the device 21 in turn.
sent to. The device 21 cuts the middle part of the pipe section B, and water pipes 5 having a predetermined length l are successively formed from the pipe B. As a result, the heat collecting plate 8 shown in FIG. 1 is completed.

As explained above, according to the present invention, the water pipes B are continuously fixed to the continuous heat collecting plate material A, so that one water pipe is attached to each heat collecting plate body. The work of fixing the water pipe can be simplified compared to the case where it is fixed. In addition, both ends of the water pipe 5 are fixed so that they need to protrude from the heat collecting plate t*1, and then the fins A of the hole 22 are cut out, so the material A is cut to a predetermined length L.
The pipe B does not get in the way during the cutting operation, and the protruding structure at both ends of the water pipe can be easily and continuously completed. The cutout part of material A (2
2. Among A1), first the part (22) where pipe B passes through.
Cut out only the remaining part 1.

Since (A1) is cut out after the pipe is fixed, the material A can be handled as a continuous body until the end of the manufacturing process, and operations such as transport positioning can be facilitated. Therefore, the entire series of operations can be performed on a line to save manpower and reduce manufacturing costs. Furthermore, even when the curved part 2 is provided as in the illustrated embodiment, the hole 22 is provided before the curved part 2 is formed, so that there is no need to cut out the curved part 2 itself, making the work simple and continuous in this respect as well. can.

Further, in the present invention, there is no need to use an extruded shape as the material A, so it is possible to reduce the thickness, reduce weight, and reduce material costs, and the width W can be freely increased to a desired value. .

Note that when embodying the present invention, the following modifications are also possible. Instead of the coil lva, a long flat plate cut in advance into an appropriate length (several times to several tens of times the length L) can be used as the material A. Instead of the carp/I/b, it is also possible to use a long pipe cut to a suitable size in advance. The holes 22 can be circular or 1 can also be shaped in other shapes. It is also possible to provide two or more curved portions 2 on the material A as shown in FIG. It is possible to eliminate the curved portion 2 and fix the pipe B to the flat heat collecting plate material A using welding, brazing, adhesive, fasteners, etc. The positions of the press 20 and the cutting device 21 can be moved back and forth to cut out the continuous fin part A1 after cutting the vibrator B, or it is also possible to cut the pipe B and the continuous fin part A1 at the same time. As the material A, a thin plate other than aluminum can also be used. As the pipe B, aluminum or steel other than commercially available materials may be used, and a pipe having an elliptical or square cross-sectional shape other than the approximately circular shape shown in the drawings may also be used.

When the water pipe 5 is provided along the side edge 9 of the main heat collecting plate 2 as shown in FIG. 7, the hole 22 can also be provided by cutting out the side edge 9 of the material as shown in FIG.

[Brief explanation of the drawing]

Claims (2)

[Claims] (1) Holes are provided at predetermined intervals in the longitudinal direction on a long and continuous heat collecting plate material, and a long continuous water pipe is fixed to the heat collecting plate material at a position passing through the holes in the longitudinal direction; A method for producing a solar heat collecting plate, characterized in that the fin portion of the heat collecting plate material on either side of the hole is cut, and the pipe is cut at a portion passing through the hole. (2) Holes are formed at predetermined intervals in the longitudinal direction of the long and continuous heat collecting plate material. Fix the ear, 2. B. This is characterized by a fixing device and a cutting device that cuts the fin portion on the side of the hole of the heat collecting plate material to which the pipe is fixed, and also cuts the pipe at the portion that passes through the hole. Manufacture of solar heat collector plate: