JPH03118927A - Folding device - Google Patents

Abstract

PURPOSE:To enable simultaneous working of both kinds of folding by making heads for working double folding and single folding which are oppositely equipped freely movable and adjustable on both sides of blank. CONSTITUTION:In a folding device 4 which is composed of a 1st working head 30 for forming double folding, a 2nd working head 31 for forming single folding, uncoiler 1, notching shearing device 2 and conveyer devices 3, 5, both working heads 30, 31 are oppositely equipped on both sides oh blank material 10, and the working heads 30, 31 are made in freely movable corresponding to the dimension of the blank material 10. In this way, both kinds of single folding and double folding can be simultaneously worked.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seam-folding device for performing seam-folding on a blank material during the manufacture of air-conditioning ducts.

[Prior Art] Generally, when manufacturing a straight rectangular duct for air conditioning, the 11th
As shown in the figure, a double seam 71 and a single seam 72 are formed on both sides of a blank material 70 by seam folding, and these double seams 71 and single seams 72 are combined to form a corner. It is said to be a method of assembling it in a cylindrical shape. In this case, as shown in FIG. 12(A), one blank material 70 is used, as shown in FIG. 12(B), two blank materials 70 are used, and the same FIG.
), there are cases where four blank materials 70 are used. In addition, the shape of the ridge is as shown in Fig. 13 (A).
Button punch-shaped double seam 71a as shown in (B)
and the corresponding single seam 72a, FIG. 14 (
There are a Bitzhag-shaped double gap 71b and a corresponding single gap 72b as shown in A) and (B).

The seam folding process of the blank material 70 is performed by a seam folding device, but since the conventional device could only process one side of the blank material at a time, the double seam 71 and the single seam 72 are separated. The blanks must be processed in sequence, which is not only time consuming and inefficient, but also requires a large space for handling the blanks, and requires the operator to directly hold the blanks in their hands. There were also safety and hygiene issues.

[Problems to be Solved by the Invention] An object of the present invention is to provide a seam folding device that can simultaneously and automatically process both single seams and tuple seams on both sides of a blank material. It is in.

[Means for Solving the Problems] In order to solve the above problems, the seam folding device of the present invention includes a first processing head for forming a tuple seam and a second processing head for forming a single seam. The present invention is characterized in that the machining head and the machining head are opposed to each other by sandwiching the conveyance path of the blank material, and the movement of at least one of the machining heads is freely adjustable according to the dimensions of the blank material.

The first processing head is provided with a roller means for forming a button punch-shaped tuple gap and a roller means for forming a Bitzhag-shaped tuple gap, and these roller means are selectively used. In this case, it is desirable that the second machining head also have a means for forming a single seam corresponding to the button punch type double seam and a means for forming a single seam corresponding to the Bitzhag type double seam. It is also possible to provide means for forming a single seam and to use these means selectively.

[Function] After the position of the second processing head is adjusted to an appropriate position that matches the takt size, when the blank material is fed into this edge folding device, both sides of the blank material are 1
and processed by passing through a second processing head,
Tuples and singles are formed at the same time.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 shows an automatic duct production line incorporating a seam folding device according to the invention. This production line consists of an uncoiler l in which a blank material 10 made of a metal plate wound into a coil shape (see Fig. 6) is set, and a blank material 10 pulled out to a required length from the uncoiler 1; 7th
A notching/shirring processing device 2 for performing notching processing to form a notch 11 and shear linking processing to cut into a predetermined length as shown in the figure, and a blank material 10 subjected to notching processing and shearing processing are shown. A conveyor device 3 for seam-folding that supplies the seam-folding device 4, a seam-folding device 4 for performing a seam-folding process on the blank material 10 sent by the conveyor device 3, and a conveyor device 5 for supplying the blank material 10 to the board processing device 6, and the above-mentioned board processing device 6 for bending and forming the flange portion 2 on the supplied blank material 10 as shown in FIG. The processed blank material lO is placed in the ninth
As shown in the figure, the blank material 10 is configured as a brake device 7 for bending the die 1]a, 13b and the flade 14 at a predetermined position using a trowel. A straight tubular tact 8 as shown in FIG. 10 is automatically manufactured.

Note that the configuration of the above line can be arbitrarily changed depending on conditions such as the configuration of each device and the installation space.

2 and 3 show the conveyor device 3 and the flap device 4. As shown in FIG.

The conveyor device 3 includes a roller conveyor 21 consisting of a large number of rollers 21a supported by a machine frame 20, a limit switch 22 disposed at the tip of the roller conveyor 21 to detect the blank material 10, the rollers 21a, 21a, and a pusher 23 that moves in the width direction of the roller conveyor 21 when a light switch 22, which is normally on standby at the end of the roller conveyor 21, is operated. When the blank material 10 conveyed by the machine comes into contact with the limit switch 22, the pusher 23 is activated, and the blank material 10 is fed into the folding device 4 side as shown by the arrow in FIG. There is.

In the illustrated embodiment, the blank material 10 is fed to the conveyor device 3 from the left side of the figure, but conversely, the blank material 10 can also be fed from the right side of the figure. Ru. That is, the blank material 10 supplied to the conveyor device 3 from the right side is conveyed to the left by the roller conveyor 21, and when it passes the limit switch 22, it is detected by a sensor and the roller conveyor 21 is reversed, and the blank material 10 is conveyed to the left side by the roller conveyor 21. It is also possible to make the limit switch 22 come into contact with the limit switch 22. In this case, the limit switch 22 does not function while the flank material 10 is being conveyed to the left.

Further, the above-mentioned seam folding device 4 has a first processing head 30 for forming a double seam fixedly disposed on one side of the conveyance path of the flank material 10, and on the other side of the conveyance path. , a second processing head 31 for forming a single seam,
It is arranged to be movable and adjustable in the direction toward and away from the rad 30 for the first processing depending on the dimensions of the blank material IO.

As is clear from FIG. 4, the first processing head 30 has a button punch-shaped double gap 71a (FIG. 13).
A)) and a Bitzhag-shaped double seam 71b (see FIG. 14(A)).
roller means 33 for sound formation. The roller means 32 for button punching is.

It is constructed by attaching rollers 37a, 37b each having a predetermined shape for holding and bending the blank material 10 to one end of a plurality of pairs of roller shafts 36a, 16b rotatably supported by the head frame 35; , the roller means 33 for bitbark is connected to the roller shafts 36a, 3
It is constructed by attaching rollers 38a and 38b of a predetermined shape to the other end of 6b, and these roller means 3
Each mouth in 2.33 - Laco 7a, 37b and 38a
, 38b have slightly different shapes, and when the blank material 10 passes between them, each roller 37a, 37b or 38
a, 18b, the flank material 10 is gradually processed into a predetermined shape, and a predetermined double gap is completed when it passes the last roller.

Gears 40a, 40b that mesh with each other are attached to each of the roller shafts 36a, 35b, and the adjacent gear 40a
.

A connecting gear 42a is connected between 40a, 40b, and 40b.
, 42b (see FIG. 2) are arranged, and all the roller shafts 36a, 35b are connected by these connecting gears 42a, 42b.
are connected in series, and drive gears 43a and 43b on two drive shafts 41a and 41b arranged symmetrically above and below the head frame 35 mesh with each connecting gear 42a and 42b. Roller shafts 36a, 3 via the drive shaft
6b can be driven and rotated. Also, the first
The head frame 35 of the processing head 30 is rotatably supported on the machine frame 20 by a support shaft 44, and the processing head 30 is rotated around the support shaft 44 as shown in FIGS. 4 and 5.
Either roller means 3 by rotating 80 degrees
2.33 can selectively face the processing position, and regardless of which roller means is selected, the two drive shafts 41a.

41b to pulleys 45, 46 and belt 4
It can be connected to a motor 48 via 7.

On the other hand, as shown in FIGS. 2 and 3, the second processing head 31 is used to form a single seam 72a (see FIG. 13(B)) corresponding to the button punch type double seam 71a. The roller means 50 has a roller means 50 of
0, a blank material 10 is attached to one end of a plurality of pairs of roller shafts 52a and 52b rotatably supported by a head frame 51.
Rollers 53a, 5:lb with a predetermined shape to clamp and process the
The roller shafts 52a and 52b are configured to be driven and rotated by the motor 54, and then the protrusion 73 (see FIG. 13(B)) of the plurality of rollers 53a and 51b is By replacing the forming roller with another roller, a roller means for forming a single seam 72b (see FIG. 14(B)) corresponding to the Pittsburgh-type tuffle seam 71b can be configured. There is.

Note that, like the first processing head 30, the second processing head 31 has single gaps 72a corresponding to the button punch type double gaps 71a at both ends of the rollers 52a and 52b shafts. roller means for forming a single seam 72b corresponding to the Bitzhag double seam 71b;
It is also possible to provide roller means for forming the roller means and to selectively expose the roller means to the processing position.

The second machining head 31 is slidably placed on a rail 56 provided on the machine frame 20 by a slide block 57, and is moved back and forth by rotation of a Hall screw 59 driven by a servo motor 58. When the takt time is input into the computer prior to machining, the servo motor 58 rotates and the rad 31 is automatically moved to an appropriate position according to the takt time for the second machining.

The first and second processing heads 30. : Between 11 and 11,
The rod 60 supports the blank material 10 being processed from above and below.
and presser rod 61 (omitted in FIG. 2).

) or multiple sets are arranged, each with guide rail 62.6
The levers 60 and presser rods 61 are attached to upper and lower telescopic frames 65 and 66, respectively, and one end 65 of each telescopic frame 65 and 56
a, 66a or guide rail 62, 63, the other end 65b,
56b are respectively fixed to the rods 31 for the second processing, so that when the rods 31 move to the second processing, the rods 60 and the presser rods 61 expand and contract synchronously. It is desirable that the gap between the rod 60 and the presser rod 61 of these receivers is widened at the end on the conveyor side so that the blank material 10 can be fed smoothly.

In the flap folding device 4 having the above configuration, when the duct dimensions are input into the computer prior to machining, the servo motor 58 rotates, and the second machining head 31 is placed in an appropriate position according to the dimensions of the flank material 10. automatically move to.

Now, the blank material 10 which has been subjected to predetermined processing in the notching/shirring processing device 2 is conveyed on the roller conveyor 21 in the conveyor device 3, and is transferred to the limit switch 2.
2, the blank material 10 is actuated and the blank material 10 is sent into the folding device 4 side.

The blank material 10 sent to the edge folding device 4 side is moved between the rod 60 and the presser rod 61, and the blank material 10 is moved between the rods 60 and the presser rods 61, and the blank material 10 is moved between the rods 60 and the presser rods 61. The seams are folded, and a double seam 71 and a single seam 72 as shown in FIG. 11 are simultaneously formed. In this case, when the roller means 32 for button punching faces the processing position in the first processing gear 30 (FIG. 4), the button punch type duffle seam 71a moves the roller means 33 for bit punching. When faced to the machining position (FIG. 5), Bitzhag-type double gaps 71b are formed, and in the second machining head 31, button punch-type double gaps and hubbars are also formed by selecting the roller means 50. A single seam 72 or 72b corresponding to the double seam is selectively formed.

The flank material 10 subjected to the seam folding process is transferred to the conveyor device 5
and transported to the board processing device 6.

Although the above-mentioned embodiment shows the case where the flap folding device 4 is incorporated into a duct manufacturing line and operated in-line, it can also be used alone.

[Effects of the Invention] As described above, according to the present invention, it is possible to simultaneously and automatically process both a single seam and a double seam on both sites of a blank material.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a tact production line incorporating the crease folding device according to the present invention, Fig. 2 is a plan view of the conveyor device and the crease folding device, and Fig. 3 is a side view of the crease folding device. Figures 4 and 5 are enlarged side views showing different rotational states of the first processing head, Figure 6 is a side view of the blank material in the rolled-up state, and Figure 7 is an explanation of notching and shearlinter processing. Figure 8 is an explanatory diagram of plate machining, Figure 9 is an explanatory diagram of brake machining, Fig. 10 is a perspective view of the completed tact, Fig. 11 is an explanatory diagram of seam folding machining, and Fig. 12 ( A
), (B), and (C) are explanatory diagrams of the duct assembly method, and Fig. 13 (A), (B) and Fig. 14 (A), (B
) is an explanatory diagram of a double gap and a single gap. 4...Folding device, 10...Blank material, 30...First processing head 31...Second processing head, 32.3:1,50...Roller means, 71...Double crease, 71a ・Button punch type double flap, 71b ・
Bitzhag type double gap, 72...Single gap, 72a ・Button punch type single gap 72b
・Bitzhag type sintal haze. Figure 1 Figure 3

Claims (1)

[Claims] 1. A first machining head for forming a double seam and a second machining head for forming a single seam are arranged opposite to each other across the conveyance path of the blank material, and at least A seam folding device characterized in that one processing head can be freely adjusted in movement according to the dimensions of the blank material. 2. The first processing head has a roller means for forming a button-punch type double seam and a roller means for forming a Pittsburgh type double seam, and selectively controls these roller means. The seam folding device according to claim 1, characterized in that it can be used. 3. The second processing head has means for forming a single seam corresponding to a button punch-shaped double seam and means for forming a single seam corresponding to a Pittsburgh-shape double seam. The seam folding device according to claim 2, wherein these means can be selectively used.