JP3084553B2 - Roll bond panel manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a roll bond panel having at least one double-sided swelling fluid circuit and used for a refrigerator evaporator or a heater.

[0002]

2. Description of the Related Art A conventional method of manufacturing such a roll bond panel is as follows.

[0003] First, on one side of a pair of metal plates,
Non-crimped part for fluid circuit formation (2), Non-crimped part for fluid circuit formation
(2) Non-crimped part for forming panel distortion prevention bulging part surrounding
(13), non-crimped part for fluid pressure introduction part (4) extending from the non-crimped part for panel distortion prevention bulging part formation (13) to the plate edge, and non-crimped part (2) for fluid circuit formation and panel An anti-pressing agent is printed in a predetermined pattern so as to form a non-pressing portion (5) for forming a communication portion, which is connected to the non-pressing portion (13) for forming a distortion prevention bulging portion. A mating plate (11) is formed by pressing one surface of the other metal plate (see FIG. 7).

[0004] Next, the plying plate (11) is put on a spacer so that the non-pressed portion bulging spaces (S1, S2) are formed on both sides of the plying plate.
After sandwiching between upper die (6) and lower die (7) via (8), fluid pressure is supplied to all non-pressed portions (2,13,4,5) of ply plate (11) to Swell, and the upper and lower surfaces (2a, 13a)
a) Press (see Fig. 8). At this time, the swelling of the non-crimped portion (13) for forming the panel distortion preventing bulging portion is completed before the non-crimped portion (2) for forming the fluid circuit, and the obtained roll bond The panel is configured so that no distortion occurs.

[0005]

However, the conventional method of manufacturing a roll bond panel has the following problems. That is, since the non-crimping portion (13) for forming the panel distortion prevention bulging portion of the ply plate (11) completely surrounds the non-crimping portion (2) for forming the fluid circuit, it bulges and the bulging and bulging portions are formed. Both sides
(13a) is pressed against both mold surfaces (6a, 7a) to form a panel distortion prevention bulging portion (31), which seals the non-crimping portion bulging space (S1, S2) inside it. Was gone. Then, the upper and lower two non-crimped part swelling spaces (S1, S2)
Between the two spaces (S1, S2)
The flat part (11a) (especially the wide part) other than the fluid circuit (20) in the part of the ply plate (11) sandwiched by plastic deformation deformed, and this was a factor that impaired the appearance and performance of the roll bond panel .

An object of the present invention is to solve the above problems.

[0007]

SUMMARY OF THE INVENTION The present invention is a method of manufacturing a roll bond panel having at least one double-sided swelling fluid circuit, wherein one side of a pair of metal plates is provided with a fluid circuit forming surface. The non-crimped portion, the non-crimped portion for forming the panel distortion prevention bulging portion, and the non-crimped portion for forming the panel distortion prevention bulging portion, which surrounds the non-crimped portion for forming the fluid circuit and partially has a discontinuous portion. As the non-crimped portion for forming the fluid pressure introducing portion, and the non-crimped portion for connecting the fluid circuit forming non-crimped portion for forming the fluid circuit and the non-crimped portion for forming the panel distortion prevention bulging portion are formed, A step of forming a mating plate by printing a crimp preventing agent in a predetermined pattern and crimping one side of the other metal plate to the printing surface, and a non-crimping portion swelling space is formed on both sides of the mating plate. Upper mold via spacer so that it can be formed And supplying the fluid pressure to all the non-pressed portions of the mating plate to swell the non-pressed portions, and pressing the swelled upper and lower surfaces against both mold surfaces. In the swelling step, the swelling of the non-crimped portion for forming the panel distortion preventing bulging portion is completed before the non-crimping portion for forming the fluid circuit, and the non-crimping portion for forming the panel distortion preventing bulging portion. The non-swelling of the non-continuous portion in (1) forms an air escape portion in the swelling portion for preventing distortion of the panel.

As described above, the non-crimped portion for forming the panel distortion preventing bulging portion of the ply plate surrounds the non-crimped portion for forming the fluid circuit and has a discontinuous portion in a part thereof. If the non-continuous portion is not expanded to form an air escape portion in the panel distortion preventing bulging portion, the inside of the panel distortion preventing bulging portion will not be sealed, and therefore, the obtained roll bond No local plastic deformation occurs in the panel.

The spacer used in the method according to the present invention is usually formed separately from the upper mold and the lower mold and disposed on both sides of the peripheral portion of the ply plate. May be formed respectively.

In order to complete the bulging of the non-crimping portion for forming the panel distortion preventing bulging portion before the non-crimping portion for forming the fluid circuit, at least the non-crimping portion for forming the communicating portion of the mating plate is required. The width of a part may be narrower than the width of the non-pressed portion for forming the panel distortion preventing bulging portion.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to FIGS. In the following description, front, rear, left and right are based on FIG. 1, front means upper in FIG. 1, rear means lower, and left and right refer to left and right in FIG. 1.

A. FIG. 1 shows a laminated plate (1) used in the method of manufacturing a roll bond panel according to the present invention. The mating plate (1) has a horizontally long rectangular shape as a whole, surrounds the four non-crimped portions for forming a fluid circuit (2), and surrounds each of the non-crimped portions (2) for forming a fluid circuit. 3X), the non-crimped portion for forming the panel distortion prevention bulging portion (3), the non-crimped portion for forming the fluid pressure introducing portion (4) extending from the non-crimped portion for forming the panel distortion prevention bulging portion (3) to the plate edge. ), And a non-crimping portion (5) for forming a communication portion connecting each non-crimping portion (2) for forming a fluid circuit and a non-crimping portion (3) for forming a panel distortion prevention bulging portion.

The two non-pressed portions 2 for forming the fluid passage are provided in two rows on the left and right sides at an interval in front and rear.

Non-crimped part for forming panel distortion prevention bulging part (3)
The two non-pressed portions for forming a fluid passage between the leading edge of the ply plate (1) and the two non-pressed portions for forming a fluid passage on the front side (2) and the rear edge of the ply plate (1) and the two non-pressed portions for forming a fluid passage are provided. (2a), the front and rear sides (3a), the left end of the ply plate (1) and the two non-pressed portions (2) for forming the fluid passages on the left side, and the rear end thereof Connect the middle parts of the front and rear sides (3a) so as to separate the left side (3b), which is connected to the left end of the rear side (3a), and the two non-crimped parts (2) for forming the fluid passages, right and left. Vertical partition part (3c), and two non-pressed parts for the formation of two fluid passages before and after
(2) to separate the left side (3b) and the vertical partition
(3c) has a horizontal partition (3d) extending rightward from the center of the length, and a left horizontal partition (3d) between the left end of the front side (3a) and the front end of the left side (3b). ) Has a discontinuous portion (3X) between the right end of the vertical partition (3c) and between the right end of the front and rear sides (3a) and the right end of the right horizontal partition (3d). .

The non-pressure-bonding portion (4) for forming the fluid pressure introducing portion is formed from the center of the length of the left side (3b) of the non-pressure-bonding portion (3) for forming the bulging portion for preventing panel distortion from the mating plate (1). It extends to the center of the left end.

The non-crimped portion (5) for forming the communication portion is formed on the left side (3b) or vertical partition of each of the non-crimped portion (2) for forming the fluid circuit and the non-crimped portion (3) for forming the bulging portion for preventing panel distortion. Section (3c). The width of the non-crimped portion (5) for forming the communication portion is smaller than the width of the non-crimped portion (3) for forming the bulging portion for preventing panel distortion. In the protruding step, the non-crimped part for forming the panel distortion prevention bulging part
The bulging of (3) is completed before the non-crimping portion (2) for forming a fluid circuit.

The non-pressed portions (2, 3, 4, 5) are formed on one side of one of a pair of metal plates such as an aluminum (including aluminum alloy) plate. As described above, the anti-compression agent is printed in a predetermined pattern, and one side of the other metal plate is press-bonded to the printed surface.

B. Next, as shown in FIG. 2, the plywood (1) is separated from the plywood (1) with spacers (8) so that the non-pressed portion bulging spaces (S1, S2) are formed on both sides thereof. Between the upper mold (6) and the lower mold (7). Here, the spacers (8) are arranged on the upper and lower surfaces of the peripheral portion of the ply plate (1) except for the fluid pressure introducing non-crimping portion (4) and the portion outside both sides thereof. The bulging space (S1, S2) is not sealed by the spacer (8).

Thereafter, all the non-pressed portions (2, 3, 4,
5) A fluid pressure such as air pressure is supplied to the bulge to bulge it, and the bulging upper and lower surfaces (2a, 3a) are pressed against both mold surfaces (6a, 7a). The swelling of the swelling portion forming non-pressed portion (3) is completed before the fluid circuit forming non-pressing portion (2), and the panel distortion preventing swelling portion (30) is formed (FIG. 3 and FIG. 3). (See FIG. 4). Here, since the discontinuous portion (3X) in the non-pressed portion (3) for forming the panel distortion preventing bulging portion cannot be bulged, an air escape portion (30X) in the panel distortion preventing bulging portion is formed. (See FIG. 3). Therefore, both upper and lower swelling spaces (S
Since (1, S2) is not sealed, the pressure difference between both spaces (S1, S2) is zero.

Next, the swelling of the non-pressure-bonding portion (2) for forming a fluid circuit is completed, thereby forming a fluid circuit (20) having a swelling shape on both sides (see FIG. 5).

Thus, as shown in FIG. 6, there are four double-sided swelling fluid circuits (20), a panel distortion prevention swelling section (30), a fluid pressure introducing section (40), and a communicating section (50). In addition, a roll bond panel (10) is obtained in which no local plastic deformation occurs in the flat portions other than these (see FIG. 6).

A portion (10a) for forming a horizontal rectangular product including each fluid circuit (20) of the roll bond panel (10)
By cutting off the other parts and performing appropriate bending processing, etc.,
For example, four refrigerator evaporators are manufactured. Of course, these evaporators also have excellent appearance and performance in which local plastic deformation does not occur in portions other than the fluid circuit (20). As described above, the present invention is particularly effective when a plurality of roll bond panel products such as evaporators are manufactured simultaneously from one roll bond panel.

[0023]

According to the method of manufacturing a roll bond panel of the present invention, the non-pressed portion for forming the bulging portion for preventing panel distortion of the plywood surrounds the non-pressed portion for forming the fluid circuit, and the discontinuous portion is partially formed. In the non-pressed portion swelling step, the non-swelling of the non-continuous portion forms an air release portion in the panel distortion preventing swelling portion, so that the panel distortion preventing swelling portion is sealed. And therefore,
A roll bond panel excellent in appearance and performance free of local plastic deformation is obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of a laminated plate used in a method of manufacturing a roll bond panel according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a first stage of a non-bonding portion forming step in the method of manufacturing a roll bond panel according to the present invention.

FIG. 3 is a horizontal sectional view showing a second stage of the non-press-bonded portion forming process.

FIG. 4 is an enlarged vertical sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is a vertical cross-sectional view showing a third stage of the non-pressure-bonded portion forming step.

FIG. 6 is a plan view of a roll bond panel manufactured by the method of the present invention.

FIG. 7 is a plan view of a laminated plate used in a conventional roll bond panel manufacturing method.

FIG. 8 is a vertical cross-sectional view showing a non-press-bonded portion forming step in a conventional roll bond panel manufacturing method.

[Explanation of symbols]

 (1) ... Mating plate (2) ... Non-crimped part for forming fluid circuit (2a) ... Upper and lower surfaces (3) ... Non-crimped part for forming panel distortion prevention bulging part (3X) ... Discontinuous part (3a) … Upper and lower sides (4)… Non-crimped part for forming fluid pressure introduction part (5)… Non-crimped part for communication part formation (6)… Upper mold (6a)… Upper mold surface (7)… Lower mold (7a) )… Lower mold surface (8)… Spacer (S1, S2)… Non-compression part swelling space (10)… Roll bond panel (20)… Both-side swelling fluid circuit (30)… Panel distortion prevention swelling part ( 30X)… Air release inside the panel distortion prevention bulge

Claims (1)

(57) [Claims] 1. A method for manufacturing a roll bond panel having at least one double-sided swelling fluid circuit, comprising: a non-pressure-bonding portion for forming a fluid circuit; A non-crimping portion for forming a panel distortion preventing bulging portion surrounding the non-crimping portion and having a discontinuous portion in part, and a non-crimping portion for forming a fluid pressure introducing portion extending from the non-crimping portion for forming the panel distortion preventing bulging portion to a plate edge. As a crimping portion, a non-crimping portion for communicating portion connecting the non-crimping portion for forming a fluid circuit and the non-crimping portion for forming a panel distortion prevention bulging portion is formed,
A step of forming a mating plate by printing a crimp preventing agent in a predetermined pattern, and crimping one surface of the other metal plate to the printed surface, and a non-compressing portion swelling space is formed on both sides of the mating plate. After sandwiching between the upper mold and the lower mold via a spacer so that it can be formed,
A step of supplying fluid pressure to all the non-pressed portions of the joining plate to swell the same, and pressing both the upper and lower swelling surfaces against both mold surfaces. The swelling of the non-crimped portion for forming the bulging portion is completed before the non-crimped portion for forming the fluid circuit, and the non-continuous portion of the non-crimped portion for forming the bulging portion for preventing panel distortion is not bulged. Forming an air release portion in the panel distortion prevention bulging portion by the method.