JPS60233482A - Device for assembling pipe body or wire rod - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a method of attaching a tube such as a heat exchange pipe or a wire such as a power lead wire to a plate material constituting a refrigerated day box, etc. using adhesive-coated metal such as aluminum. The present invention relates to an apparatus for assembling tubes or wires using foil sheets.

[Technical background of the invention]

In refrigerators in which the condenser pipe is placed in heat-transfer contact with the inner surface of the side plate or back plate of the outer box of the refrigerator, and the heat is radiated through the side plate or back plate, the condenser pipe is attached to a metal foil such as aluminum foil with adhesive. The sheet is attached to the side plate or back plate to improve heat transfer and to prevent the insulating material made of foamed urethane from entering between the condenser pipe and the side plate or back plate.

[Problems with background technology]

By the way, conventionally, metal foil sheets with adhesive have been purchased and used in rolls, but the winding length of each roll is as short as 250 m, and for example, one Since the usable length of a refrigerator is about 12 m, only about 20 refrigerators can be assembled with one roll. Therefore, even if the pasting work of adhesive-coated metal foil sheets is automated, it is difficult to replace the rolls by obtaining them. Must be done frequently and dangerously
Sufficient automation was difficult. Further, since the width of the metal foil sheet used differs depending on the refrigerator model, it is necessary to purchase and prepare many types of metal foil sheets depending on the amount to be used, and arranging the purchase thereof is also troublesome.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to increase the length of one roll of metal foil sheet, to extend the replacement cycle, thereby achieving sufficient automatic termination, and to improve the width dimension. An object of the present invention is to provide a tube or wire assembling device that can reduce the number of types and simplify purchasing arrangements.

[Summary of the Invention] The present invention provides a metal foil coated with an adhesive by continuously unwinding a long metal foil sheet from a roll wound with an adhesive and applying an adhesive to one side of the sheet. The sheet is provided with a cutting line parallel to its supply direction, and the metal foil sheet is cut along the cutting line with respect to nine or more tube bodies or wires that are arranged substantially parallel to each other along the plate material constituting the outer box of a refrigerator, etc. The metal foil sheet is separated at the border and simultaneously crimped and glued to the plate material so as to surround the tube and the wire rod, thereby increasing the length of one roll and reducing the variety of width dimensions of the metal foil sheet. The aim is to

[Embodiments of the invention]

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 5. 1 is a workpiece conveyor, which is moved in the direction of arrow A, for example. Reference numeral 2 denotes a refrigerator side plate as a plate material transferred from the previous process by this work conveyor 1. A condenser pipe 3 as a tube body is placed on the upper surface of this side plate and its temporary position is determined by appropriate means. The condenser pipes 3' are arranged in parallel in a KU-shape at both ends of the straight portion 3a.

Now, reference numeral 4 denotes an assembly device provided above the workpiece conveyor 1, which will be explained below. Reference numeral 5 denotes a roll formed by winding a metal foil sheet, for example, an aluminum foil sheet 6, around a core material 5a. Support device 27 (not shown), coating roller 8. It is guided through a guide roller 9 between a pair of feed rollers 10 and 10 serving as a feeding device, and the feed! 70-rollers 10, 10 are each driven to rotate in the direction of arrow B, so that the rollers 10, 10 are fed out in order starting from the roll 5. Reference numeral 11 denotes a tank storing molten rubber-based #1 fat as the adhesive Q. The tank is heated to a predetermined temperature by a heater and the adhesive Q is stored in a molten state. 12 is a coating head as a coating device disposed opposite to the coating roller 8;
of adhesive Q is supplied to the inlet portion 14 of the coating head 12 via a pipe 13 equipped with a heater. 15 is a slit-shaped discharge port provided in the coating head 12, which faces substantially the entire width of the aluminum foil sheet 6;
Inlet 1 via valve 16 in core coating head 12
It is connected to 4. 17 is a heater that heats the coating head 12; 18 A roller for forming perforations for cutting snow, which is disposed between the guide roller 9 and the feed roller 10', and a receiving roller 19 is disposed to sandwich the aluminum foil sheet 6 therebetween. A plurality of chevron-shaped blades 2o are protruded on the outer periphery of the perforation forming roller 18 to form perforations as intermittent cutting lines that divide the aluminum foil sheet 6 into thirds in the width direction. It is set up. Reference numerals 21 and 22 are guide rollers that respectively guide the aluminum foil sheet 6 that has passed through the feed rollers 10 and 10 in the direction of the work conveyor. An arm 24 (7) which rotates in the direction of arrow C is provided, and a pressure roller 25 as a pressure bonding device is supported at the tip M portion of the arm 24 (7).

The straight part 3 of the condenser pipe 3 is attached to this crimp row 225.
Three annular grooves 26 are provided that correspond to a. Reference numeral z7 denotes a cutter device provided near the pressure roller 25, which is moved in the direction of the arrow and in the direction opposite to the arrow by a cylinder or the like (not shown). Reference numeral 28 denotes an arm disposed at a predetermined interval on the left side of the arm 24, which is also rotated in the direction of arrow C and in the direction of arrow C by the expansion and contraction of the cylinder 29. A pressure roller 30 similar to the pressure roller 25 is supported at the tip.

Next, the operation of the above configuration will be explained. The aluminum foil sheet 6 from the roll 5 is continuously fed out from the roll 5 by the drive of the feed rollers 10, 10, and passed through the three guide rollers 7 in order to the coating U-28 and the coating head 1.
It passes between 2 and 2.

On the other hand, while the feed rollers 10, 10 are being driven, the valve 16 is opened, and the molten adhesive Q is supplied from the tank 11 through the pipe 13 to the inlet 14 of the coating head 120.
is discharged from the slit-shaped discharge port 15 so as to ooze out and is applied to one surface of the aluminum foil sheet 6 to a thickness of approximately 70 μm. The aluminum foil sheet 6 coated with the adhesive Q in this way is placed between the perforation forming Cf = near 18 and the receiving roller 1.
9, the blade 20 forms two perforations (intermittent cutting lines) parallel to the feeding direction (longitudinal direction) of the aluminum foil sheet 6, and then passes through the guide rollers 21 and 22 to the pressure roller 25. be guided until Refrigerator side plates 2 on which condenser pipes 3 are temporarily positioned are arranged on the work conveyor 1 and moved in the direction of arrow A, but the straight portions 3a of the condenser pipes 3 temporarily positioned on the refrigerator side plate 2 are When one end is opposed to the position directly below the pressure roller 25, the cylinder 23 is extended, the arm 24 is rotated in the direction of arrow C, the pressure roller 25 is moved toward the refrigerator side plate 2, and the adhesive Q is applied. The i-end of the aluminum foil sheet 6 is attached to one end of the straight portion 3a (see FIG. 4). From this state, the cylinder 23 is further extended, and the three grooves 26
Since the aluminum foil sheet 6 is pressed so as to simultaneously cover the peripheries of the straight portions 3a of the three capacitor pipes 3, the two perforations located between the straight portions 5a are the boundaries. The aluminum foil tape 6 is separated into three strips by the tensile force exerted by the grooves 26, and the aluminum foil tape 6 is adhered to the refrigerator side panel 2 on both sides along each straight section 5a (see FIG. 5). .

Since the work conveyor 1 is moved at a constant speed in the direction of the arrow, when one end of the aluminum foil sheet 6 is adhered to one end of the straight portion 5a, the feed rollers 10 and 10 are synchronized with the work conveyor 1. When the aluminum foil sheet 6 is pulled out from the roll 5 by being rotated at high speed in the direction of arrow B, and the pressure roller 25 is opposed to the other end of each straight section 3a, the cylinder 23 contracts and the arm 24 moves in the opposite direction of arrow C. By being rotated, the pressure roller 25 is separated from the refrigerator side plate 2, and the cutter device 27 is moved in the direction of the arrow to cut the aluminum foil tape 6. At this time, the feed roller 10,
10 is stopped and the valve 16 in the coating head 12 is closed.

One end of the straight part 3a of the condenser pipe 5 temporarily assembled to the next refrigerator side plate 2 on the work conveyor 1 is connected to the pressure roller 2.
5, the cylinder 23 is extended and the same action as described above is performed, and the feed roller 10.1
The valve 12 is opened at the same time as the signal 0 is driven. still,
The cylinder 29 is expanded and contracted at different timing from the cylinder 23 so that the pressure roller 30 is pressed against the straight portion 3a of the capacitor pipe 5.

FIG. 6 shows a second embodiment of the present invention.
From the embodiment of the guide roller 7.9.22 and one arm 28. Cylinder 29. The pressure roller 30 is removed and the pressure roller 23 is directly brought into contact with and separated from the side plate 2 by the cylinder 23, so that the structure shown in the figure is made, and the discharge port 15 of the coating head 12 is directed downward.

Incidentally, instead of the perforation forming roller 18, a cutter roller for cutting and making snow having an annular cutting blade for forming a continuous cutting line may be arranged opposite to the receiving roller 19.

According to the structure of each of the above embodiments, the adhesive Q is applied to the aluminum foil sheet 6 after being drawn out from the roll 5, and the length of the roll 50 around which the aluminum foil sheet 6 is wound is as follows.
Compared to aluminum foil sheets with adhesive pre-applied, rolls with the same outer diameter can be made longer by the same amount of adhesive, and the roll replacement time can be lengthened by that amount, which increases the effectiveness of automation. Significantly improved.

Furthermore, by preparing perforation forming rows 218 with different spacings between the blades 20 for forming perforations depending on the refrigerator model, the width dimension of the aluminum foil sheet 6 after cutting can be varied. It is possible to use rolls 5 with the same width dimension even for different models of refrigerators, and therefore, the number of types of keels 5 to be prepared in advance can be reduced, and purchasing arrangements etc. can be greatly simplified.

As described above, by applying the adhesive to the aluminum foil sheet 6 to which the adhesive Q is not attached immediately before pasting, the conventional aluminum foil sheet with adhesive is wound into a roll. 60 compared to purchasing and using a
It is possible to reduce the cost by about 1.9%, and in combination with the improvement of the effectiveness of automation, the manufacturing cost of refrigerators can be significantly reduced.

It should be noted that, in place of the capacitor pipe 3, when a general tube body or a wire such as a power supply lead wire is bonded to a general plate material other than the refrigerator side plate 2, the same structure can be applied.

〔Effect of the invention〕

As is clear from the above explanation, the present invention is capable of increasing the length of the gold foil sheet in the ← roll, lengthening the replacement cycle, achieving sufficient automation, and changing the width dimension. It is possible to provide a tube assembly device that reduces the number of tubes and simplifies purchasing arrangements and the like.

[Brief explanation of drawings]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a schematic longitudinal cross-sectional view of the whole, FIG. 2 is a perspective view of a refrigerator side plate on a work conveyor, and FIG. The figure is a perspective view of the coating head, FIGS. 4 and 5 are enlarged longitudinal sectional views of essential parts showing different operating states, and FIG. 6 is a schematic perspective view showing a second embodiment of the present invention. In the drawing, 1 is the work conveyor, 2 is the refrigerator side plate C plate)
, 3 is the condenser pipe C tube body), 4 is the assembly device, 5
〒〒, 6 is aluminum foil sheet (metal foil sheet), 10
12 is a coating head (coating device), 18 is a perforation forming roller (cutting device), and 25 and 30 are pressure rollers (pressing device). Figure 1 Figure 2 Figure 3 Figure 17 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. In the case where a plurality of tubular bodies such as heat exchange pipes or wires such as power lead wires are attached to the plate material constituting the outer box of a refrigerator, etc. so that they are approximately parallel to each other, long and wide metal foils are used. A supply device that continuously takes out and supplies the metal foil sheet in one stroke from the four wheels around which the sheet is wound, and a supply device that applies adhesive to each of the metal foil sheets supplied from this supply device to a predetermined thickness. a cutting device that forms a continuous cutting line or an intermittent cutting line parallel to the feeding direction on the metal foil sheet coated with an adhesive by the coating device; The metal foil sheets are simultaneously pressed so as to surround the circumferences of the plurality of tube bodies or wire rods, thereby separating the metal foil sheets between the tube bodies or wire rods at the cutting line as a boundary. An apparatus for assembling tubes or wires, comprising a pressure bonding device for adhering the metal foil sheet to the plate along each tube or wire.