JP3515694B2 - Manufacturing method of long metal plate - 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 for producing a long metal plate, and more specifically, when connecting a metal plate to a metal plate at the front, a connection portion is hardened like welding or a thickness is increased. To avoid thickening, so as not to hinder the molding in the next molding step, for example,
The present invention relates to a technique for avoiding liquid leakage in a step of foam-filling a synthetic resin foam material between opposing upper and lower metal plate materials, and thus avoiding trouble in the next step.

[0002]

2. Description of the Related Art Conventionally, a metal plate material wound on a pay-off reel is vertically extended and continuously fed out to roll-form the metal plate material at both end portions thereof, and thereafter, a metal plate material facing vertically is hard between the metal plate materials. A foam molding line in a production line where a synthetic resin foam molding material such as urethane foam is filled and foamed, cured, and cut to an appropriate length to obtain a sandwich panel in which a synthetic resin foam insulation material is filled between metal plate materials. In order not to stop the above, it is necessary to connect the end of the previous metal plate to the tip of the subsequent metal plate.

[0003]

By the way, conventionally, when connecting metal plate materials, the line is stopped and the front and rear metal plate materials are welded to each other at their abutting points, or they are bonded by an instant adhesive or the like. Productivity will be reduced by stopping. Moreover, the welded spots and the places where the instant adhesive is used are hardened, and it is difficult to stabilize the forming shape by the subsequent roll forming, and the drop plate amount for discarding the defective forming spots increases. There is a problem in that it is difficult to eliminate liquid leakage points such as gaps and pinholes, liquid leakage occurs in the subsequent foam molding process, and foam molding defects occur.

The present invention is intended to solve such a problem, and does not stop the line by connecting the subsequent metal plate materials without stopping the previous metal plate materials, and connects them like welding. Avoiding hardening or thickening of parts so as not to hinder the molding in the next molding process, and the process of foam filling synthetic resin foam between the upper and lower metal plate materials facing each other, etc. In the above, it is an object of the present invention to provide a method for manufacturing a long metal plate, which is capable of avoiding liquid leakage and avoiding trouble in the next step.

[0005]

According to the first aspect of the present invention, the first metal plate 1a is continuously transported while the second metal plate 1 is continuously conveyed.
In the method for manufacturing a long metal plate for connecting b, the end portion of the previous metal plate material 1a is stored in a pit portion 2 formed in front of the connection point, and the previous metal plate material 1a is moved to the previous processing step. The metal plate 1b is conveyed, and the front end of the metal plate 1b is brought into contact with the stopper-3 inserted into the conveyance line to position the rear metal plate 1b, and the rear end of the metal plate 1a is clamped to form a pit portion. In the range stored in No. 2, the metal plate 1a is moved backward and brought into contact with the stopper-3,
The rear end edge of the rear metal plate 1a is positioned, then the stopper-3 is retracted to the outside of the transport line, the rear end portion of the previous metal plate material 1a and the front edge of the rear metal plate material 1b are abutted, and then,
The first metal plate 1a and the second metal plate 1b are connected to each other by adhering the tapes T ₁ and T ₂ substantially flush with each other.

In the second aspect, the tapes T ₁ and T
₂ is a metal plate material 1 on the surface of the metal plate materials 1a and 1b.
It is characterized in that it is attached in the supply direction and the transverse direction of a and 1b.

In the third aspect of the present invention, the width W ₁ of the tape T ₁ attached in the feeding direction is smaller than the width W of the metal plate members 1a and 1b, and the plurality of tapes T ₁ are spaced apart in the transverse direction. It is characterized in that it is attached in the supply direction at a location.

According to the present invention, the tape T ₁ is adhered in the supply direction at one end of the metal plate materials 1a and 1b in the width direction, and then another tape T ₂ is adhered in the transverse direction, and then the tape T ₂ is adhered. , Tape T _{1 in the} feeding direction to the metal plate materials 1a, 1
It is characterized in that it is moved in the width direction of b and is adhered in the supply direction, another tape T ₂ is adhered thereto in the transverse direction, and such an operation is repeated.

(Operation) In the first aspect, the front end of the rear metal plate 1b is brought into contact with the stopper-3 inserted in the conveying line to position the rear metal plate 1b.
Further, the rear end of the previous metal plate 1a is clamped and moved backward within the range where the previous metal plate 1a is stored in the pit portion 2 and brought into contact with the stopper-3 to be positioned. After once positioning so that the edges of the rear metal plate materials 1a and 1b face each other, the stopper-3 is retracted, and then the edge of the previous metal plate material 1a and the rear metal plate material 1b.
Abutting the edges of the tape T, then tape T
By attaching ₁ and T ₂ , taping can be performed as specified, and the metal plate 1a can be connected to the metal plate 1b after continuous feeding, and the line is stopped to reduce productivity. In addition, since it is taping, the connection point is not hardened like welding etc., so that, for example, the subsequent roll forming can be favorably performed, and further, for example, liquid synthesis is performed without causing liquid leakage. There is no problem in foam molding of resin.

In the second aspect, in addition to the action of the first aspect, the connection strength of the metal plate materials 1a and 1b at the connection points in the supply direction and the transverse direction can be made sufficient, and for example, the subsequent roll forming is stabilized. Can be done by
For example, liquid leakage can be reliably prevented.

According to the third aspect, in addition to the effect of the second aspect, it is possible to easily deal with the change of the width W ₁ of the metal plate members 1a and 1b.

In the fourth aspect, in addition to the action of the second or third aspect, it is possible to easily deal with the change of the width W ₁ of the metal plate materials 1a and 1b, but the tape T _{2 in the} transverse direction is the metal plate material. It becomes one piece that is continuous in the width W ₁ direction of 1a and 1b, and for example, liquid leakage can be reliably prevented.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The method for producing a long metal plate of the present invention will be described in detail with reference to the drawings of a connecting device used for the same.

FIGS. 1A to 1G show metal plate materials 1a and 1b.
And FIG. 2 is an explanatory view showing the procedure for connecting the transfer lines.

As shown in FIG. 2, the first to the first feed ends are provided.
The fourth payoff reels 4a, 4b, 4c, 4d are installed, and the first and second payoff reels 4a, 4b alternately supply the upper metal plate materials 1c, 1d. The payoff reels 4c and 4d alternately supply the lower metal plate materials 1a and 1b (which become the surface plates in the product), and in the lower transfer line, the previous metal plate material 1
The subsequent metal plate material 1b is connected to a, and the metal plate materials 1a and 1b are continuously supplied in the lower transport line. The configuration will be described in detail below. A connecting device 5 is provided in the middle of the transfer line to connect the front and rear metal plate materials 1a and 1b, and then roll forming is performed in the roll forming device 6, and then in the foam forming portion 34 including the double conveyor. A synthetic resin foam molding material such as hard urethane foam is filled and foamed between the upper and lower metal plate materials 1c and 1b, cured, and then cut at the cutting portion to insulate the hard urethane foam between the metal plate materials 1c and 1b. The sandwich panel 8 as shown in FIG. 3 used as the material 7 can be continuously produced. In FIG. 2, reference numeral 35 indicates a preheater, and X indicates a connection point.

As shown in FIGS. 4 and 5, a pit portion 2 is formed in front of the connecting device 5 (downstream side for supplying the metal plate materials 1a and 1b), and the pit portion 2 is formed at the end portion of the previous metal plate material 1a. The position is detected, and based on this detection result, the air cylinder 1
By operating 2 to swing the receiving roll 13 downward, the pit portion 2 is opened and the rear end portion of the previous metal plate material 1a is guided to the inside of the pit portion 2 for storage. The structure for storing the rear end portion of the metal plate member 1a is generally referred to as a storage plate means 30. In this way, since the pit portion 2 has the storage, it is possible to perform the above-mentioned supply of the metal plate material 1a without stopping.

As shown in FIGS. 5 to 9, a slit portion 36 is formed in the connection device 5 upstream of the pit portion 2 in the transport line so as to cross the supply direction of the metal plate materials 1a and 1b. The slit 3 is provided with a stopper-3 which can be moved up and down by the cylinder 9. The upper ends of the stoppers 3 are provided with rollers 10 at intervals in the transverse direction, and when the stoppers 3 are in a lowered state, the rollers 10 substantially match the conveyance line and can smoothly feed the metal plate materials 1a and 1b. It is like this. As shown in FIG. 9 (a), when the previous metal plate 1a passes through the connecting device 5, the end of the previous metal plate 1a is detected by the end detecting means such as a photoelectric tube device, and based on this detection result. The cylinder 9 is extended to raise the stopper body 39, and the pair of guide pieces 37, 37 are raised together with the roller 10 to raise and rotate the guide piece 37 around the pins, and the guide piece 37 is held. The receiving surface 11 appears substantially vertically, and the metal plate members 1a and 1b can be accurately positioned.

A table 14 is provided before and after the stopper-3.
a and 14b are provided, and only the table 14a in front of the stopper 3 is slidably provided so that it can be moved toward and away from the stopper-3 by the cylinder 38, and
A clamper 15 is provided so as to be able to move up and down so as to face the table 14a so that the metal plate 1a can be moved toward the stopper-3 while the end portions of the metal plate 1a are clamped by the table 14a and the clamper 15. There is. The structure for clamping and moving the metal plate 1a in this way is generically referred to as clamp moving means 31.

Thus, while storing the terminal end of the previous metal plate 1a in the pit portion 2 formed in front of the connection point X and transporting the previous metal plate 1a to the previous roll forming step, The rear end of the plate material 1a is clamped by the table 14a and the clamper 15 and moved rearward within the range stored in the pit portion 2 so that the rear end of the previous metal plate material 1a is set on the receiving surface 11 of the stopper-3. The abutting contact is performed to position the rear edge of the metal plate 1a. In addition, the tip of the rear metal plate 1b is the receiving surface 1 of the guide piece 37 of the stopper-3.
The metal plate 1b is brought into contact with 1 and the subsequent metal plate 1b is positioned.
In this case, the widthwise positioning of the metal plate members 1a and 1b is performed by the side guides 40 and 40 whose widths can be set and changed in the transverse direction. Side guide 40
As shown in FIG. 14, the position of the metal plate 1b in the width direction can be changed for the rotation operation of the operation handle 41.

In this way, the front and rear metal plate materials 1a,
1b becomes substantially flush with each other and both side edges are aligned and abutted (see FIG. 1 (a)).

10 to 14 show a taping device 17
FIG. 10 is a plan view showing the traveling rail, and FIG.
(A) is metal at the connection point X of the metal plate materials 1a, 1b
Tape T to be attached in the feeding direction of plate materials 1a and 1b₁ ,as well as
Tape T to be attached in the transverse direction ₂ Attaching the supply direction equipped with
Figure 3 shows a schematic side view of the device 32 and the transverse application device 33.
ing. Hereinafter, each configuration will be described in detail. As shown in FIG.
So that the frame 19 of taping device 17
A pair of fixed rails 18, 18 are provided that extend in the direction
And the fixed rails 18 and 18 are provided with a traversing platform 21,
By the drive of the motor mounted on the traverse table 21,
Reciprocating the moving base 21 along the fixed rails 18, 18.
It is freely movable. Drive configuration is rack and pinion type
Various configurations can be adopted. As shown in Figure 12
The box-shaped traverse table 21 is
T ₂ Is attached to the press rolls 23a, 23b and the cover.
Tape T₂ Stick in the cross direction
It is possible to disconnect with. That is,
A pair of pressing rolls 23a and 23b are attached to the transverse moving base 21.
The cylinders 42a and 42b are provided so that they can be moved up and down.
The holder roll 43 against the pressing roll 23a.
The tape T is elastically contacted by the spring 44.₂Hold
I can do it. In addition, the cutter 24
It can be rotated within a range of about 90 degrees by a rotary switch.

As shown in FIG. 15 (a), however, when connecting the metal plate members 1a and 1b with the tape T ₂ from the passing state in which the pair of pressing rolls 23a and 23b are raised, first, the cylinder 42b is extended to lower the pressing roll 23b, the pressing roll 23b is pressed against both metal plate members 1a and 1b at the connection point X, and the tip of the tape T ₂ is connected by the downward movement of the pressing roll 23a by extending the cylinder 42a. At the location X, both metal plate materials 1a and 1b are pressed.

After that, the transverse moving table 21 is driven and moved, and the tape T ₂ is attached to the connection point X while pressing the tape T ₂ with both pressing rolls 23a and 23b [see FIG.

[0024] After attaching the end, it is raised only pressing roll 23a, the tape T ₂ to advance a little cross moving table 21
Tension is applied [see (c) and (d) in the figure].

After applying tension to the tape T ₂ in this way, the transverse moving base 21 is moved forward a little and the cutter 24 is rotated 90 degrees to cut the tape T ₂ [see (e) in the figure]. The traverse table 21 is slightly advanced, the cutter 24 is returned to the original position, and the tape T ₂ is pressed by the holder roll 43 to hold the tip of the tape T ₂ slightly hanging from the roll 23a. The process is in a ready state [see (f) in the figure].

After the pasting operation is completed, the pressing roll 23b is raised to return the transverse moving table 21 to its original position.

In this way, the tape T ₂ is attached to the metal plate material 1a,
A configuration for supplying the connecting point X in the transverse direction of 1b and adhering the connection point X in the transverse direction is generically referred to as a transverse direction attaching device 33.

As shown in FIG. 10 and FIG.
A pair of movable rails 20, 20 are installed on the rails 18, 18.
Mounted on the frame connecting the movable rails 20 and 20.
The movable rails 20 and 2 are driven by the mounted motor 22.
Move 0 along fixed rails 18, 18 in transverse direction
I am able to do that. On the movable rails 20, 20
Is a feed carriage 2 configured similarly to the traverse carriage 21.
5 is mounted and can be driven to move in the supply direction by driving the motor.
I am trying to do it. Tape T on the supply transfer table ₁Is
The tape T of the traversing carriage 21 that is placed₂Rolled out as
Tape T at the connection point X between the metal plates 1a and 1b.₁Together with
It is attached and connected in the feed direction.

Then, the supply moving table 25 is moved in the supply direction on one side in the width direction of the metal plate materials 1a and 1b at the connection point X, and is adhered with the tape T ₁ [see FIG. 1 (b)], Next, the supply moving table 25 is moved to a substantially central portion in the width direction to attach the tape T ₁ [see FIG. 1 (d)], and further,
By moving the supply moving table 25 to the other side in the width direction, the tape T
₁ can be attached [Fig. 1 (f)
reference]. In this way, the structure for adhering the tape T ₁ in the supply direction is generically referred to as the supply-direction adhering device 32.

Then, the tapes T ₁ and T ₂ are affixed at the butt connection points X of the metal plate materials 1a and 1b by the taping device 17 which is a taping means, and the connections are made as follows.

That is, the movable rails 20 and 20 are positioned to one side in the width direction of the metal plate members 1a and 1b with respect to the fixed rails 18 and 18, and in this state, the supply movable table 25 is moved by the sequence control. The tape T ₁ is moved along the movable rails 20, 20 in the supply direction to move the tape T ₁ to the metal plate material 1.
The ends a and 1b in the width direction are attached in the supply direction [see FIG. 1 (b)]. Supply transfer stand 2 that has been pasted
5 is returned to its original position. Then, the traverse table 21 is driven along the fixed rails 18 and 18 so that the tape T ₂ is attached in the transverse direction on the tape T ₁ already attached in the feeding direction [FIG. 1]. (See (c)]. The traversing movable table 21 that has been attached is returned to its original position. In this case, the tape T ₂ is not cut and stands by. Next, the supply moving table 25 is moved to the central portion of the connection point X, and the supply moving table 25 is moved in the feeding direction at the central portion to attach the tape T ₁ to the central portion [see FIG. 1 (d)]. And then
The transverse moving table 21 is driven to attach the tape T _{2 in the} transverse direction from above the tape T ₁ already attached in the supply direction [see FIG. 1 (e)].

However, such an operation is shown in FIG.
Repeated as shown in (g), metal plate materials 1a, 1b
The tapping points are to be taped and connected.

[0033] In this case, it is to cut the tape T ₁ by the cutter 24 is activated at the end portion of the tape T ₁ are set in the supply direction, and a metal plate material tape T ₂ is set in the transverse direction Width W of 1a and 1b
The cutter 24 operates at the end of the tape to cut the tape T ₂ .

Such taping operation is performed in about 20 seconds.

By the way, the tapes T ₁ and T ₂ are made of polyester film and glass thread (glass fiber) is attached to the tapes T ₁ and T 2.
_The product name "Firamen tape: product number 9116" manufactured by Sliontech Co., Ltd. laminated in the length direction ₂ is used.

Then, the front and rear metal plate members 1a and 1b are brought into contact with the stopper 3 to perform positioning once,
After that, the clamped state is maintained, the stopper 3 is pulled out, and the edges of the front and rear metal plate materials 1a and 1b are abutted to each other, so that the front and rear metal plate materials 1a and 1b are flush with each other. It is possible to butt, and by performing taping in such a state, it is possible to perform taping according to a predetermined condition.
Can connect the subsequent metal plate material 1b while performing continuous feeding, and does not stop the line.

Since it is taping, it is possible to satisfactorily perform subsequent roll forming without hardening the connecting portion such as welding, and it is possible to reduce the amount of discarding the connecting portion because there is almost no forming defect. Of. or,
In the foam molding process of filling the synthetic resin foam molding material, liquid leakage of the material can be reliably prevented.

[0038]

According to the first aspect of the present invention, the metal plate material is conveyed to the previous processing step while the end portion of the metal plate material is stored in the pit portion formed in front of the connection point, and the metal plate material after the metal plate material is conveyed. The front end of the metal plate is brought into contact with a stopper inserted into the transport line to position the subsequent metal plate, and the rear end of the metal plate is clamped to move backward within the range stored in the pit. The rear edge of the previous metal plate is positioned by contacting the stopper, and then the stopper is retracted to the outside of the transport line. Butt the tips together, then
Since the tape is attached to the front metal plate material and the rear metal plate material substantially flush with each other, the front end portion of the rear metal plate material is brought into contact with the stopper inserted into the transport line to allow the rear metal plate material Positioning is performed, and the rear end portion of the previous metal plate material is clamped to move backward in the range where the previous metal plate material is stored in the pit portion and abut on the stopper to perform positioning.
In this way, so that the edges of the front and rear metal plate materials face each other,
After positioning once, the stopper is retracted, then the edge of the previous metal plate and the edge of the subsequent metal plate are brought into contact with each other, and then the tape is affixed to the abutting point,・ It is possible to perform the predetermined butting with the subsequent metal plate flush, and by performing taping in such a state, it is possible to perform the predetermined taping, and the previous metal plate is continuously fed. However, the subsequent metal plate material can be connected, the productivity is not reduced by stopping the line, and since taping does not harden the connection part like welding, for example, the subsequent roll forming is well performed. Further, there is an advantage that, for example, liquid leakage does not occur and the foam molding of the synthetic resin does not fail.

In the second aspect, since the tape is adhered to the surface of the metal plate material in the supply direction and the transverse direction of the metal plate material, in addition to the effect of the first aspect, the supply direction and the transverse direction of the metal plate material at the connection point are provided. There is an advantage that the connection strength in the direction can be made sufficient, for example, the subsequent roll forming can be stably performed, and further, for example, liquid leakage can be surely prevented.

In the third aspect of the present invention, the width of the tape stuck in the feeding direction is smaller than the width of the metal plate material, and the tape is stuck in the feeding direction at a plurality of positions spaced in the transverse direction. In addition to the effect of the second aspect, there is an advantage that it is possible to easily cope with a change in the width of the metal plate material.

According to the present invention, after the tape is adhered in the feeding direction at the end portion in the width direction of the metal plate material, another tape is adhered in the transverse direction from above, and then the tape in the feeding direction is adhered to the metal. The plate material is moved in the width direction and adhered in the supply direction, and another tape is adhered in the transverse direction on the plate material, and such an operation is repeated. Therefore, in addition to the effect of claim 2 or 3, Although the width of the plate material can be easily changed, the tape in the transverse direction is a continuous piece in the width direction of the metal plate material, which has an advantage that liquid leakage can be reliably prevented.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, in which (a) to (g) are operation explanatory diagrams.

FIG. 2 is an explanatory diagram showing a transfer line of the above.

FIG. 3 is a cross-sectional view of the sandwich panel of the above with a part thereof omitted.

FIG. 4 is a schematic plan view showing a pit portion and a connecting device of the same.

FIG. 5 is a schematic side sectional view showing a pit portion and a connection device of the same.

FIG. 6 is a schematic side view of the above stopper and its vicinity.

FIG. 7 is a schematic front view of the above.

FIG. 8 is a schematic plan view of the above.

9A to 9C are explanatory views showing the operation of the stopper.

FIG. 10 is a schematic plan view showing the taping means of the above.

FIG. 11 (a) is a front view of the same, and FIG. 11 (b) is a side view.

FIG. 12 (a) is a schematic front view showing a transverse moving base, a tape and a cutter of the same, and FIG. 12 (b) is an exploded perspective view showing a tape mounting structure.

FIG. 13 is a perspective view showing a tape attached in the same supply direction as above.

FIG. 14 is a perspective view mainly showing the tape attached in the supply direction and the transverse direction in the above.

15 (a) to 15 (f) are explanatory views showing the tape adhering operation of the traverse moving base and the supply moving base.

FIG. 16 is a perspective view showing a pit portion of the above.

[Explanation of symbols] 1a Metal plate 1b ahead Metal plate 2 after 2 Pit part 3 Stopper-T ₁ tape T ₂ tape

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65H 21/00 B21B 15/00 B65H 19/00

Claims (4)

(57) [Claims] 1. A method for producing a long metal plate, which comprises connecting the following metal plate materials while continuously transporting the above metal plate materials,
A stopper that conveys the previous metal plate material to the previous processing step while storing the end portion of the previous metal plate material in the pit portion formed in front of the connection point, and inserts the front end of the subsequent metal plate material into the conveyance line. The metal plate to be positioned later, and the rear end of the metal plate is clamped to move backward within the range stored in the pit and abut the stopper to the metal plate. After positioning the rear edge of the rear metal plate, and then retracting the stopper to the outside of the transport line, the rear edge of the previous metal plate material and the leading edge of the rear metal plate material are abutted together, and then the front metal plate material. A method for producing a long metal plate, characterized in that the tape and the subsequent metal plate material are attached so as to be substantially flush with each other and connected. 2. The method for producing a long metal plate according to claim 1, wherein the tape is attached on the surface of the metal plate in the supply direction and the transverse direction of the metal plate. 3. The width of the tape applied in the supply direction is smaller than the width of the metal plate material, and the tape is applied in the supply direction at a plurality of locations spaced apart in the transverse direction. Item 2. A method for producing a long metal plate according to item 2. 4. A tape is adhered in the supply direction at one end in the width direction of the metal plate material, and then another tape is adhered in the transverse direction from above, and then the tape in the supply direction is applied in the width direction of the metal plate material. 4. The production of a long metal plate according to claim 2 or 3, characterized in that the tape is moved to a sheet and is attached in the supply direction, another tape is attached in the transverse direction from the above, and such an operation is repeated. Method.