JPH0684232B2 - Continuous metal hoop material processing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improved method for joining metal hoop materials such as colored zinc iron plates, colored stainless steel, and colored aluminum, and a continuous, reliable and inexpensive continuous metal hoop. Material processing method.

2. Description of the Related Art Conventionally, since a metal hoop material has a finite length, it is widely performed in the continuous processing line to join the rear end of the hoop material and the front end of the next hoop material for processing.

The conventional method of joining metal hoop materials is
There are technologies shown in the following figures.

In the joint press method shown in FIG. 5, a plurality of crank-shaped notches, which are line-symmetrical to each other, are made in the overlapped hoop material by pressing, as shown in FIGS. 5 (a) and 5 (b). Forming a plurality of segments of hoop material that bend in a line having different widths from each other and that have upward bends and downward bends alternately adjacent to each other and bend in a dogleg shape.

Then, the hoop members are pulled apart from each other, and the pieces are engaged with each other to join them as shown in FIGS. 5 (c) and 5 (d).

In the spot welding method shown in FIG. 6, a large current is applied to the stacked hoop materials to perform spot welding.

In the butt welding method shown in FIG. 7, the hoop members are butted and welded.

In the stapler fixing method shown in FIG. 8, the stacked hoop members are joined by a stapler.

Further, as a method of supplying the metal hoop material to the press, there is an example disclosed in JP-A-54-25578, in which the abutting hoop material is joined with an adhesive tape.

Problems to be Solved by the Invention However, such a conventional technique has the following problems in the joining step and other steps of the continuous metal hoop material processing line.

For example, embossing after joining metal hoop materials,
Consider using a line that continuously performs forming roll processing.

A. In joint methods such as joint press method, spot welding method, and stapler method, the metal hoop materials overlap at the joint, which causes the following problems.

In the embossing process, if the gap of the embossing roll is passed through those joints without being expanded, the embossing roll may be impacted or scratched, resulting in an unbalanced expansion of the gap. There will be imbalances and irregularities, and problems with hoop clogging and cutting.

Therefore, it is necessary to provide the embossing roll with a gap expanding function that expands the gap when the joint passes and restores after the passage.

In the process of forming rolls, it is necessary to use forming rolls with a wide gap in order to pass through the joint, and the process becomes unstable and defects occur.

Then, the overlapping part of the hoop material is peeled off and bent,
The hoop material is clogged or cut in the forming roll.

B. The spot welding method and the butt welding method have the following problems with the welding method.

It takes a very long time to melt the metal.

If the conditions are not strictly adjusted, the welding strength will drop extremely.

Welding is not possible for colored zinc iron plates, etc., because current does not flow unless the paint is removed.

Joining between different kinds of metals such as iron plate and aluminum is impossible.

Rolling by embossing and bending and extension by roll forming are added to the welded joint, and the strength of the weld is reduced, causing fracture of the joint.

C. In the case of the joint press method, tension is used to shift the hoop materials, and the pieces are joined together by meshing, so equipment that applies tension after the bonding process on the processing line is required.

D. In the case of the method for supplying the hoop material to the press described in JP-A-54-25578, the step of temporarily joining with the adhesive tape and the air between the adhesive tape and the hoop material with the press roll are used. The step of extruding and secondarily joining is performed by the following joining method in which the hoop material is stopped and is continuously carried out by a mechanical device at the same position.

First, a mechanism for driving an adhesive tape, in which a pressing roll is suspended on the lower surface by an air cylinder guided by a guide pole, is provided with a tape sticking device that is reciprocally moved in the width direction of the hoop material.

Then, by the feed pinch roll from the uncoiler, the leading and trailing hoop members that have been horizontally fed are brought close to or brought into contact with each other, and the feeding of the hoop members is stopped.

Next, a mechanism for driving the adhesive tape is run in the width direction of the hoop material, and the adhesive tape having a predetermined size attached to the belt is passed through a peeling roll having a small diameter to cause it to peel and fall at the butt edge, A primary bond is made.

However, in the above-mentioned primary joining with the adhesive tape, the air remaining between the adhesive tape and the hoop material hinders the adhesion.

Therefore, a pressing method is used in which the adhesive tape is pressed by a pressing roll to press air to strongly and secondarily bond the bonding portion while the apparatus is running, and then the feeding of the hoop material is restarted.

Due to the technology of such a configuration, the mechanism for peeling off the adhesive tape and temporarily attaching it occupies the same position as the press roll, so that it is subject to positional restrictions and mechanical structural restrictions. Therefore, the following very difficult problems occur.

The peeling and sticking steps of the adhesive tape are generally difficult to mechanize, and even though the mechanical device is expensive, the mechanical device must be used.

Adhesive tape cannot be attached along the longitudinal direction of the hoop material.

In order to peel and drop the adhesive tape attached to the belt,
There is a drawback that the joining with the adhesive tape is only on the front side of the hoop material.

Since the press roll is suspended on the lower surface of the mechanism for sticking the adhesive tape, if the diameter of the press roll is increased, the drop distance becomes longer and the peeling and dropping of the adhesive tape becomes unstable. Since the roll diameter cannot be increased, it is difficult for the roll to overcome the small roundness of the adhesive tape.

The pressure-sensitive adhesive tape is configured to be pressed from the longitudinal end of the pressure-sensitive adhesive tape by the pressing roll. However, the pressure-sensitive adhesive tape is prone to curling in the longitudinal direction, and the pressing roll does not easily get over the curling.

, Causes the following problems a, b and c.

I. The adhesive surface of the adhesive tape adheres to the press roll, and the adhesive tape is peeled off.

B. The end of the adhesive tape is pushed between the adhesive surface and the hoop material, resulting in poor adhesion.

C. The adhesive tape is pushed out.

Since the press roll is supported by the guide pole, there is a drawback that the pressing force by the press roll becomes weak at a position away from the root.

Since the feeding of the hoop material is stopped while the press roll is traveling by the air cylinder, there is a drawback that the stop time becomes long.

Means for Solving Problems The present invention uses the following means in order to solve the above problems.

Install a pinch roll that sends out hoop material on a continuous processing line for metal hoop material.

Then, a joining machine is provided that temporarily joins the rear end of the hoop material and the tip end of the other hoop material with an adhesive tape that extends over them.

Next, there is provided a pressure bonding roll, which is composed of one or more sets of upper and lower rolls that rotate in opposite directions at the same peripheral speed and sequentially presses the hoop material while sandwiching it and sends it to the next step.

The pinch rolls, the joining machine, and the pressure bonding rolls are provided at intervals.

Action The hoop material temporarily joined by the joining machine is drawn by the crimping roll while being sent out by the pinch roll, and the joining part is sent to the crimping roll while forming a loop that gives slack to the hoop material.

Then, the pressure-bonding roll pressure-bonds the pressure-sensitive adhesive tape and pushes out air interfering with the pressure-bonding between the pressure-sensitive adhesive tape and the hoop material to perform secondary bonding.

As a result, the adhesive strength of the adhesive tape is improved and the joint portion of the hoop material is strengthened.

Embodiment FIG. 1 is a front view of an embodiment of the present invention.

In the figure, 1 and 2 are metal hoop materials, 1 is a trailing wire, 2 is a leading wire, 3 is an adhesive tape for joining the two, 4 is a joining machine, 5 is an uncoiler for supplying the hoop material, and 6 is a hoop material. A pinch roll that is pulled out from the uncoiler and sent to the subsequent process, 7 is a guide roller, 8 is a crimping roll that crimps the hoop material and the adhesive tape, 9 is a multi-stage forming roll that performs forming roll processing, and 10 is a loop of the hoop material. .

The embodiment of the present invention thus configured is carried out as follows.

First, temporarily stop the feeding of the preceding hoop material 2,
The rear end is set to the joining machine 4.

Then, the adhesive tape 3 extending over the both ends of the trailing hoop material 1 and the trailing hoop material 2 which are pulled out from the uncoiler 5 using the pinch roll 6 is pasted by the joining machine 4, To join together.

Next, the feeding of the preceding hoop material 2 which has been temporarily stopped is started.

Then, by controlling the driving of the pinch roll 6 and the pressure bonding roll 8 to form the loop 10 between the guide roller 7 and the pressure bonding roll 8, the joint portion of the hoop material bonded by the adhesive tape 3 is Pass through the pressure bonding roll 8.

Then, the adhesive tape 3 is pressure bonded by the pressure roller 8,
The air that prevents the adhesion between the hoop material is pushed out.

As a result, the adhesive tape 3 adheres to the hoop material with the original adhesive force, and the joining becomes strong, and the secondary joining is completed.

Then, the hoop material 1 is fed into a plurality of stages of forming rolls 9 and is subsequently subjected to forming roll processing to have a predetermined shape, for example, as shown in FIG.

Here, the method of attaching the adhesive tape 3 is shown in FIG.
There is a method in which the hoop material 1 and the hoop material 2 are abutted against each other, and the adhesive tape 3 extending over the hoop material 1 and the hoop material 2 is attached and bonded to the front surface, the back surface, or both surfaces thereof.

Further, there is a method shown in FIG. 3 in which the hoop material 1 and the hoop material 2 are spaced apart from each other, and the adhesive tape 3 extending over the both is pasted and bonded to the front surface and the back surface.

In that case, first, in the joining machine 4, as shown in FIG.
Adhesive tapes 3 are affixed to both sides of the hoop material with a space left therebetween, and are temporarily joined.

Then, as shown in FIG. 3 (b), the pressure-sensitive adhesive roll 8 is passed through, so that the adhesive tape 3 a on the front surface and the adhesive tape 3 b on the back surface between the hoop members are pushed out by air between them and are brought into close contact with each other.

It is also possible to replace the pressure bonding roll 8 with an embossing roll or a forming roll 9.

In the case of embossing roll, as shown in Fig. 3 (c),
Both the hoop material and the adhesive tape 3 are embossed to be uneven, and the adhesive tape 3a on the front surface and the adhesive tape 3b on the back surface are closely attached between the hoop materials.

Further, it is possible to perform the pressure bonding by using two or more types of the pressure bonding roll 8, the embossing roll and the forming roll 9.

Further, the loop 10 may be formed at a position between the pinch roll 6 and the joining machine 4, and the joining machine 4
Of the trace that was temporarily removed by moving from the continuous processing line,
It may be between the pinch roll 6 and the pressure bonding roll 8.

EFFECTS OF THE INVENTION As described above, the present invention has a configuration in which the pinch roll, the joining machine, and the pressure bonding roll are provided with a space therebetween.

The hoop material is stopped only in the step of temporarily applying the adhesive tape, and the step of crimping the hoop material is performed while the hoop material is fed by a crimp roll provided at another position.

As a result, joint press method, spot welding method,
The problem that the metal hoop materials are overlapped at the joint, such as the stapler method, is solved, and the following effects are obtained.

It is possible to pass through the joint without giving the gap expanding function to the embossing roll.

Since it is not necessary to use a forming roll having a wide gap, the processing is stable and the yield is improved.

Clogs and cuts in embossing rolls and forming rolls do not occur due to overlapping joints.

In addition, such as spot welding method and butt welding method,
There are no problems caused by welding, and the following effects can be obtained.

The time required for melting the metal is not required and the bonding time is shortened.

It eliminates the need for strict conditions.

It is not necessary to remove the paint such as colored zinc iron plate.

It is possible to join different kinds of metals such as iron plate and aluminum.

Breakage due to embossing and forming roll processing of the joint will not occur.

Further, in the joint press system, the equipment for applying tension for meshing and joining the hoop members is not required.

Also, the following problems of the technique disclosed in Japanese Patent Laid-Open No. 54-25578 can be solved.

A. The primary joining method to prevent the restriction of the position of the press roll device when sticking the adhesive tape and the mechanical structure of the press roll device when lifting the hoop material. Optimum selection of joining machine and crimping roll is possible.

Therefore, the following effects can be obtained.

It is also possible to manually perform steps for manual work, such as peeling off the adhesive tape and temporary attachment.

Then, not only can the adhesive tape be applied in the width direction of the hoop material, but also it can be easily applied in the longitudinal direction or two or more pieces as required.

Adhesive tapes on the front and back of the hoop material can be pressed simultaneously by rolls.

Since the pressure-bonding roll is provided at a position different from that of the bonding machine, the roll diameter of the pressure-bonding roll can be freely increased so as to overcome the rounding of the adhesive tape.

Adhesive tape can be crimped from the widthwise end that is hard to roll.

With, the following problems a, b and c can be solved.

I. The adhesive tape adheres to the roll and peels off.

B. The end portion of the adhesive tape is pressed between the adhesive surface and the hoop material, resulting in poor bonding.

C. The adhesive tape is pushed out.

Usually, the both sides of the pressure-sensitive adhesive tape are pressure-bonded by a pressure-bonding roll, so that the entire surface of the pressure-sensitive adhesive tape can be uniformly and strongly pressure-bonded.

Since the feeding of the hoop material can be started immediately after applying the adhesive tape, the feeding stop time of the hoop material can be shortened.

B. By using the method of joining hoop materials at intervals shown in Fig. 3, by passing through a pressure bonding roll, Fig. 3 (b)
As shown in, the air blocking the adhesive tape is pushed out,
The adhesive tape on the front surface and the adhesive tape on the back surface between the hoop members are firmly adhered.

Therefore, the following effects can be obtained.

The effect of preventing peeling of the adhesive tape.

The adhesive tape between the hoop materials acts as a cushioning material, and the adhesive tape adheres to and covers the corners of the metal hoop material to prevent cutting of the adhesive tape.

C. Replacing the crimping rolls with embossing rolls or forming rolls reduces the number of processes and reduces equipment costs.

D. 2 of pressure roll, emboss roll and forming roll
The crimping will be more reliable by crimping with more than one kind of roll.

As described above, the continuous metal hoop material processing method according to the present invention is simple and reliable in its means, and is less likely to cause mechanical failure due to its simple mechanism. The yield is improved, the bonding time is short, and it is suitable for bonding different metals. Is widely applicable, and the equipment cost is low.

As a result, it can be applied to a continuous processing line for various metal hoop materials, and its industrial utility value is extremely high.

As an example, a metal hoop material is molded into the cross-sectional shape shown in Fig. 4 having a flat recess that opens upward, and urethane liquid is injected into the recess, and the opening of the recess is used as a back paper such as aluminum kraft paper. Continuously manufacture a long metal hard urethane foam board composite panel by covering and closing with, foaming and hardening the urethane, filling the gap between the metal hoop material and the backing paper with urethane foam, and cutting to length. Line
It was possible to solve the above problems and operate the system satisfactorily.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, FIG. 2, FIG. 3, and FIG. 4 show an embodiment of the present invention, and FIG. 5, FIG. 6, FIG. It shows the technology. FIG. 4 is a vertical cross-sectional view showing a small edge, FIG. 8 (b) is a longitudinal cross-sectional view in the longitudinal direction, FIG. 2 (a), FIG. 3 (a), FIG. 5 (a), (c), 6 (a), 7 (a), and 8 (a) are plan views, and the others are front views. In the figure, 1 is a trailing metal hoop material, 2 is a leading metal hoop material, 3 is an adhesive tape, 4 is a joining machine, 6 is a pinch roll, 8 is a pressure roll, 9 is a forming roll, and 10 is a loop. .

Claims (5)

[Claims] 1. A continuous metal hoop material processing line in which a rear end of a hoop material and a leading end of a next hoop material are joined by an adhesive tape extending over the hoop material, and a pinch roll for feeding the hoop material is provided and separated from the pinch roll. A joining machine for temporarily joining the hoop materials with an adhesive tape is provided at a predetermined position, and at a position away from the joining machine, it is composed of one or more pairs of upper and lower rolls that rotate in opposite directions at the same peripheral speed,
Sequentially crimping while sandwiching the hoop material, providing a crimping roll, temporarily joining the hoop joining machine with an adhesive tape in the joining machine, sending out the hoop material with a pinch roll, and drawing into the crimping roll while forming a loop,
A continuous metal hoop material processing method characterized by joining the hoop materials by sequentially pressing the adhesive tape with a pressure roll and pushing out the air between the hoop material and the adhesive tape. 2. The continuous metal according to claim 1, wherein a space is provided between the rear end and the next end of the hoop material, and an adhesive tape is attached to the front surface and the back surface thereof. Hoop material processing method. 3. The continuous metal hoop material processing method according to claim 1 or 2, wherein the pressure bonding roll is an embossing roll. 4. The continuous metal hoop material processing method according to claim 1, wherein the pressure roll is a forming roll. 5. The continuous metal hoop material processing method according to claim 1 or 2, wherein the pressure bonding is performed by two or more kinds of rolls among a pressure bonding roll, an embossing roll and a forming roll. .