JPH0341890Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention cuts the terminal end of a strip-shaped metal material that is being conveyed in a horizontal state and the starting end of a new strip-shaped metal material that follows, and then cuts both ends. This invention relates to an improvement in a material joining device that can butt join and continuously supply strip-shaped metal materials to a press device or the like.

(Prior Art) Conventionally, as a material bonding device for joining a band-shaped metal material being processed and a new band-shaped metal material to follow, a structure shown in FIGS. 7 and 8 is known.

That is, the material bonding device connects the frame body 24 and
A transport base 26 that transports the strip metal material 25;
A cutting device 28 equipped with a fixed blade (not shown) and a movable blade 27 that cut the terminal end and starting end of two strip-shaped metal materials 25, and the cut strip-shaped metal material 25
Welding torch 29 for joining the terminal end and starting end of
It is composed of a welding device 30 etc. equipped with.

When joining two strip-shaped metal materials 25, first, the terminal end of the strip-shaped metal material 25 and the starting end of the new strip-shaped metal material 25 are uniformly and straightly cut by the cutting device 28. do. Next, the cut surfaces of each band-shaped metal material 25 are butted against each other directly under the welding torch 29 and fixed under pressure with a clamp 31, and the abutted portions are welded to the base metal using a welding device 30. After that, the joint portion is rolled by the rolling roller 33 of the rolling device 32 to make it uniform.

However, since the material joining device joins the ends of the band-shaped metal material 25 by welding, the welding heat extends to the joint part of the band-shaped metal material 25,
There are problems in that mechanical properties such as hardness and tensile strength change, and welding defects such as residual stress occur. As a result, when the band-shaped metal material 25 is supplied to a press machine or the like for processing, the joint portion may break, resulting in the production of defective products.

In particular, the above-mentioned problem appears more prominently in the case of steel materials with a high carbon content.

(Problems to be solved by the invention) The present invention was devised to solve the above problems, and its purpose is to soften and increase the ductility of the joints of metal strips, and to remove residual stress. An object of the present invention is to provide a material bonding device that can perform the above operations.

(Means for Solving the Problem) A one-end cutting device 2 comprising a fixed blade 9 and a movable blade 11 for cutting the terminal end and starting end of two strip-shaped metal materials 5 having a thickness of 0.1 to 3.2 mm, respectively. A welding device 3 for joining the end and start ends of the cut strip-shaped metal material 5 was installed on a table 6 supported above the frame body 1 so as to be movable in a direction perpendicular to the traveling direction of the strip-shaped metal material 5. In the material bonding device, a heater-equipped device is mounted on the table 6 and includes a receiver 18, a support frame 19, and a pressing member 21 supported on the support frame 19 so as to be vertically movable, facing the receiver 18. An annealing device 4 is provided so as to be movable in a direction perpendicular to the traveling direction of the strip metal material 5, and the joint portion of the strip metal material 5 joined by the welding device 3 is connected to a receiver 18.
The basic structure of the invention is to heat the material at a predetermined temperature for a predetermined time while being held between the press body 21 and the press body 21.

(Function) When joining two strip-shaped metal materials using the material joining device, first, the terminal end of the strip-shaped metal material and the starting end of a new strip-shaped metal material following this are uniformly and Cut straight.

Next, the cut surfaces of each band-shaped metal material are butted against each other, and the abutted portions are welded to the base metal using a welding device to join them.

Then, after heating the joint portion of the band-shaped metal material at a predetermined temperature for a predetermined time using an annealing device, it is allowed to naturally cool in the air.

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

1 and 2 are a front view and a plan view of a material bonding device according to an embodiment of the present invention, which is composed of a frame body 1, a cutting device 2, a welding device 3, an annealing device 4, etc. has been done.

The frame main body 1 is installed and fixed at a position near the belt-shaped metal material 5 that is being transported in a horizontal state,
The frame body 1 can move horizontally between a working position located below the belt-shaped metal material 5 being transported (solid line position in Figure 2) and a non-working position located above the frame body 1 (chain line position in Figure 2). Equipped with a flexible table 6. That is, the table 6 is slidably mounted on a guide rail 7 arranged on the frame body 1 in a direction perpendicular to the traveling direction of the strip-shaped metal material 5, and there is a gap between the frame body 1 and the table 6. By interposing a drive device 8 consisting of a fluid pressure cylinder or the like, it becomes possible to move freely in the horizontal direction. Note that the stroke of the table 6 is set at a working position (second
solid line position) and the entire table 6 is the frame body 1
It is set so that it can take the upper non-working position (the position indicated by the chain line in FIG. 2).

The cutting device 2 is provided on the table 6, and has a function of cutting the end and start ends of two strip-shaped metal materials 5 uniformly and straight when joining the ends of the two strip-shaped metal materials 5. A fixed blade 9 provided above the metal material 5 (above the table 6);
Lower position of band-shaped metal material 5 (below table 6)
It is comprised of a movable blade 11 that can be moved up and down by a hydraulic cylinder 10, a clamp mechanism 12 that can fix the band-shaped metal material 5, and the like.

The welding device 3 is provided on a table 6 and has a function of butting and joining the end and start ends of the cut strip-shaped metal material 5, and is driven by an appropriate drive device to weld the ends perpendicular to the traveling direction of the strip-shaped metal material 5. A TIG welding torch 16 is attached to the traveling body 13 via a holder 14 and a torch adjustment device 15, and a TIG welding torch 16 is attached to the traveling body 13 so as to be movable in the direction of TIG. Clamping device 1 that presses and fixes directly below the welding torch 16 and in abutted state
It consists of 7 mag. In addition, TIG welding torch 1
6 are connected to a pulse built-in DC TIG welding power source (not shown) and an inert gas supply device such as argon gas (not shown).

On the other hand, the annealing device 4 is slidably provided on the upper surface of the table 6 and has a function of heating the joint portion of the joined band-shaped metal materials 5 at a predetermined temperature for a predetermined period of time.

That is, as shown in FIGS. 3 to 6, the annealing device 4 includes a receiver 18, a support frame 19 horizontally fixed to the receiver 18, and a link to the support frame 19 to face the receiver 18. A pressing body 2 is vertically installed to be movable up and down by a mechanism 20 and can freely come into contact with and separate from the receiver 18.
1, an operating section 22 including a lever 22a for operating the link mechanism 20, and the like.

Specifically, the receiver 18 consists of a frame 18a and a convex receiver 18b provided in the frame 18a on which the strip metal material 5 can be placed, and is slidable on the upper surface of the table 6. It's summery.

Further, the pressing body 21 includes a frame body 21a and a frame body 21a.
The receiving part 1 of the receiving body 18 is heated to a predetermined temperature by electricity supplied through the heat insulating member 21b.
Block-shaped heating heater 2 that can be freely connected to and separated from 8b
1c, etc., and the pressing body 21 is located at the pressing position (third
) and the heating heater 21c is connected to the receiver 18b.
A link mechanism 20 is attached to the support frame 19 so that it can take a non-pressing position (see FIG. 5) away from the
It is vertically installed so that it can be raised and lowered freely.

Furthermore, the operating part 22 is interlocked and connected to the link mechanism 20, and when the lever 22a is rotated in the direction of the arrow from the position shown in FIG. When the lever 22a is rotated in the direction of the arrow from the position shown in FIG. 5, the pressing body 21 is lowered by the link mechanism 20 and comes into contact with the receiving portion 18b.
In this embodiment, the heater 21c is provided on the pressing body 21, but it is also possible to provide the heater 21c on the receiving body 18 side.

Thus, the annealing device 4 is set at a set position (see FIGS. 3 and 4) in which the receiving part 18b is located below the band-shaped metal material 5 and the band-shaped metal material 5 can be placed on the receiving part 18b.
The table 6 is arranged so that it can take the position shown by the solid line in the figure) and the non-set position where the receiving part 18b is removed from the lower position of the strip-shaped metal material 5 (the position shown by the chain line in FIGS. 3 and 4).
The guide roller 23 is disposed on the upper surface so as to be slidable in a direction perpendicular to the traveling direction of the band-shaped metal material 5.

Next, a case will be described in which the ends of two strip-shaped metal materials 5 are joined together using the material joining device.

The material bonding device is in a non-working position where the entire table 6 is located on the frame body 1 when the strip-shaped metal material 5 is being conveyed in a horizontal state to a press device or the like. Therefore, even if the band-shaped metal material 5 is significantly undulated vertically during transportation, it will not collide with the cutting device 2, the welding device 3, etc., and damage to the band-shaped metal material 5 and damage to the device can be prevented.

On the other hand, when the band-shaped metal material 5 approaches the end, the press device and the feeding of the material 5 are stopped.

When the feeding of the band-shaped metal material 5 is stopped, the table 6 is moved from the non-working position to the working position by the drive device 8, and the end portion of the band-shaped metal material 5 is placed on the upper surface of the table 6.

Then, the end portion of the band-shaped metal material 5 is fixed by the clamp mechanism 12, and the end portion is cut uniformly and straightly by the fixed blade 9 and the movable blade 11.

Thereafter, a new strip-shaped metal material 5 is fed out from the uncoiler, its starting end is placed on the upper surface of the table 6, it is fixed by the clamp mechanism 12, and cut uniformly and straightly by the cutting device 2.

The cut surfaces of each band-shaped metal material 5 with cut ends are sent to the welding device 3, and the butted portions are butted together directly under the TIG welding torch 16 and fixed by the clamping device 17, and the butted portions are connected to the TIG welding torch 16. They are joined by base metal welding using an arc generated between them and the band-shaped metal material 5.

Then, the bonded portion of the strip metal material 5 is sent to the annealing device 4, and the bonded portion is held between the receiving portion 18b of the receiving body 18 and the heating heater 21c of the pressing body 21, and is heated to a predetermined temperature by the heating heater 21c. (about
After heating at 1000°C for a predetermined time (approximately 30 to 60 seconds), it is naturally cooled in the air. This brings the joint into an annealed state, softening the joint, increasing its ductility, and eliminating residual stress.
Note that the annealing device 4 is located at the solid line position in FIGS. 3 and 4 only when heating the joint portion of the band-shaped metal material 5.

When the heating of the joint portion of the band-shaped metal material 5 is completed, the drive device 8 moves the table 6 from the working position to the non-working position.

Finally, the press device is restarted and the strip metal material 5 is continuously supplied to the press device.

In the above embodiment, since the movable blade 11 is configured to move from the bottom to the top, the hydraulic cylinder 10 that moves the movable blade 11 up and down is connected to each blade 9,
11, even if oil were to leak from the hydraulic cylinder 10, the strip metal material 5 and each blade 9, 11 would not be soiled, and the relatively heavy hydraulic cylinder 10, etc., would not be soiled. Because it is located in one place, assembly and maintenance can be done simply and easily.
Furthermore, since the movable blade 11 can be viewed from above, blade alignment can be performed easily and accurately.

Furthermore, since the material bonding device is configured so that the table 6 can take a working position located below the strip-shaped metal material 5 and a non-working position located above the frame body 1, sufficient installation space cannot be taken. It can be conveniently and easily installed in such places, and even if the band-shaped metal material 5 waves up and down during transportation, it will not collide with the cutting device 2, etc.
Damage to the material 5 etc. can be prevented.

(Effects of the invention) As mentioned above, the material joining device of the present invention is equipped with an annealing device that heats the joint portion of the band-shaped metal materials joined by the welding device at a predetermined temperature for a predetermined time, so that the mechanical properties are improved by welding. The joint portion of the band-shaped metal material whose properties have changed can be annealed using an annealing device. As a result, it is possible to soften and increase the ductility of the joint portion of the band-shaped metal material, and to remove residual stress and the like. Furthermore, there is no possibility that the joints will break during transportation of the metal strips, or that the joints will break and result in defective products even when the metal strips are fed to a press machine or the like for processing. becomes. In addition, in the present invention, since the annealing device is movably provided on the table 6, when the table 6 is pulled out to the working position and cutting or welding work is performed, by moving it toward the back of the table 6, The belt-shaped metal body 5 is
This prevents the work from being lifted upward and making work difficult. As a result, the annealing device 4 can be installed even if the width of the table 6 is narrow, and the material bonding device can be downsized.

[Brief explanation of the drawing]

Fig. 1 is a front view of a material bonding device according to an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a partially cutaway side view of an annealing device, and Fig. 4 is a partially cutaway side view of an annealing device. 5 is a side view of the annealing device in a state where the pressing body is separated from the receiving body, FIG. 6 is a sectional view taken along the line -- in FIG. 5, and FIG. 7 is a front view of the conventional material bonding device. FIG. 8 is a side view as well. 1 is a frame body, 2 is a cutting device, 3 is a welding device, 4 is an annealing device, and 5 is a band-shaped metal material.

Claims (1)

[Scope of utility model registration request] One-end cutting device 2 consisting of a fixed blade 9 and a movable blade 11 that cut the terminal end and starting end of two strip-shaped metal materials 5 having a thickness of 0.1 to 3.2 mm, respectively, and the terminal end of the cut strip-shaped metal material 5 In the material joining device, a welding device 3 for joining a starting end portion and a starting end portion is provided on a table 6 that supports the welding device 3 above the frame main body 1 so as to be movable in a direction perpendicular to the running direction of the strip metal material 5. On the top, an annealing device 4 equipped with a heater consisting of a receiving body 18, a support frame 19, and a pressing body 21 supported by the supporting frame 19 so as to be vertically movable facing the receiving body 18 is used to run the band-shaped metal material 5. The welding device 3 connects the joint portion of the band-shaped metal material 5 to the receiver 18.
A material bonding device characterized in that the material bonding device is configured to heat the material at a predetermined temperature for a predetermined time while being clamped between the press body 21 and the press body 21.