JP2659845B2 - Side trimmer scrap shoot - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a chute for discharging scrap of a side trimmer for continuously trimming an edge portion of a metal strip.

[Conventional technology]

When both edge portions of a metal strip (hereinafter referred to as a strip) are continuously sheared and trimmed by a side trimmer, when the sheared portion may have burrs and when the burrs are not required, There is.

FIG. 4 is a conceptual diagram showing a side view of an example of a conventional side trimmer capable of switching between the two specifications. In the drawing, S is a strip fed in the direction of the arrow, and if it is possible to have burrs at both edges of the strip S, a separator roll disposed vertically opposite to the strip feed line as shown in FIG. 13 and 14 with non-contact to the strip S are raised by the air cylinder or the like (not shown) on the separator roll 13 out of, not illustrated as strip scrap S ₁ generated by trimming down the separator roll 14 can pass As shown in FIG. 5, both edge portions of the strip S are continuously connected to the lower side of the strip S by a trimmer upper blade 11 and a lower trimmer blade 12 of the side trimmer 10 disposed in front of the separator rollers 13 and 14 by the air cylinder or the like. To shear and trim. Band-shaped scrap S ₁ generated by this shearing
Is introduced into the fixed trimmer exit chute 101 and passed therethrough. The tip of the trimmer exit chute 101 is inserted into the separator roll exit chute 15 by input and passed therethrough and sent to the scrap chopper 16. Pay. The scrap chopper 16 and cut a strip of scrap S ₁ in shorter scrap S _2, housing is dropped into the lower bag (not shown).

If no burrs should be formed on both edges of the strip S (trimming without burrs), as shown in a two-dot chain line in FIG. 4 and in FIG.
12 and a gap of about 0.3 times the thickness t of the strip S, and incomplete shearing is performed. The upper and lower separator rolls 13 and 14 sandwich both edges of the strip S and pressurize the scrap S as shown in FIG. Disconnect ₁ to prevent burrs.

Scrap S ₁ generated by the shearing, fixed shaft 15
Introduce and pass through the separator roll exit side chute 15 rotated upward with the center a, and the scrap chopper 16
Sent to the feeds, is housed in a bag (not shown) and cut into a short scrap S _2.

[Problems to be solved by the invention]

By the way, in the conventional apparatus as described above, in order to move the lower separator roll 14 up and down, it is necessary to leave a gap between the trimmer exit chute 101 and the separator roll exit chute 15 at least equal to the roll diameter of the lower separator roll 14. .

Therefore, since the manually insert the tip of the scrap S ₁ leaving the trimmer egress chute 101 to separator roll exit side chute 15, reduces the safety of working with requires extra personnel, also automatic movement There was a problem that productivity was lowered because it was not possible.

An object of the present invention is to solve these problems and to provide a new side trimmer scrap chute capable of automatically discharging a strip-shaped scrap generated by trimming.

[Means for solving the problem]

Therefore, the scrap chute of the side trimmer of the present invention is a trimmer that continuously shears the edge of the metal strip,
In a side trimmer including a separator roll disposed so as to be able to be retracted from the strip plate feeding line, a trimmer exit side scrap chute and a separator roll exit side scrap chute, the trimmer exit side scrap chute and / or
Alternatively, the separator roll exit side scrap chute is configured to be extendable and contractable, and the trimmer exit side scrap chute and the separator roll exit side scrap chute can be connected.

[Action]

The above-described scrap chute of the side trimmer of the present invention, when trimming the edge portion of the strip, if the edge portion may have burrs, move the separator roll in a direction away from the strip plate feeding line and retract. Then, the trimmer exit side scrap chute and / or the separator roll exit side scrap chute are extended and connected to each other, and the edge of the strip is continuously and completely sheared by the trimmer, and the strip-shaped scrap is connected. It is discharged through the side scrap chute and the separator roll exit side scrap chute.

If there is no burr at the edge of the strip, the trimmer exit side chute and / or the separator roll exit side chute are contracted to increase the distance between the two, and the separator roll is banded in the gap between them. It moves in the direction approaching the board transport line to sandwich the edge of the strip. After this, the edge part is continuously and incompletely sheared by the trimmer, the shear part is pressed by the separator roll to separate the scrap from the strip. The strip-shaped scrap is discharged through a scrap chute on the separator roll exit side.

〔Example〕

Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings.

1 and 2 are conceptual views showing the side of the side trimmer of the present invention, and FIG. 3 is a side view showing the main part thereof in detail. In these figures, reference numeral 1 denotes a pair of cylindrical chutes on the left and right sides of the strip provided on the exit side of the side trimmer 10, and an overshoot 2 is slidably fitted on the outer surface thereof by an air cylinder 4 as shown in FIG. The chute 1 has another air cylinder 3 mounted thereon, and the operation thereof causes the side trimmer 10 and the upper and lower separator rolls 13 and 14 to operate.
It is pivotally mounted so that the fixed shaft 1a can rotate around the center between them. The side trimmer 10 includes a trimmer upper blade 11 and a trimmer lower blade 12. Reference numeral 13 denotes an upper separator roll, and reference numeral 14 denotes a lower separator roll. The lower separator roll is disposed so as to be close to or retractable from a transport line on which the strip S is transferred by the operation of the hydraulic cylinders 18 and 19. Reference numeral 15 designates a pair of cylindrical left and right side separator outlet chutes, and an air cylinder 17 mounted at an intermediate position thereof, one end of which is disposed at each end of the strip in the width direction at the upper and lower separators. Each is rotatably connected to a fixed shaft 15a provided between the rolls 13, 14 and the scrap chopper 16.

Next, the operation of the apparatus of the present invention will be described. When trimming both edges of the strip S, if the edges may have burrs, as shown in FIG. 1 and FIG. 13 is lifted by the hydraulic cylinder 18 so as not to come into contact with the strip S, and the lower separator roll 14 is moved downward by the hydraulic cylinder 19 to be retracted, and the trimmer exit chute 1 and the separate roll exit chute 15 are respectively air-discharged. The cylinders 3, 17 rotate around the fixed shafts 1a and 15a to set their positions.

Next, the overshoot 2 covering the trimmer exit chute 1 is slid and moved by the air cylinder 4, and its tip is inserted into the separator roll exit chute 15 to insert the trimmer exit chute 1 and the separator roll exit chute.
Connect with 15.

Next, both edges of the running strip S are continuously sheared by the side trimmer 10 as shown in FIG.
Trimmer egress chute 1 the strip of scrap S ₁ generated by the trimming, overshoot 2, scrap chopper 16 through the separator roll exit chute 15
Automatically feeding feeds, and cut into short scrap S ₂ is dropped to a lower bag (not shown) housed in the. If there are no burrs at both edges of the strip S, the overshoot 2 is wrapped around the trimmer exit side chute 1 by the air cylinder 4 as shown by a two-dot chain line in FIGS. Then, the air cylinder 3 rotates around the fixed shaft 1a to retract, and the separator roll exit side cylinder chute 15 is also rotated around the fixed shaft 15a by the air cylinder 17 to set its position.

Then incompletely sheared as both edge portions 6 shown in the strip S by the side trimmer 10, the scrap S ₁ is pressurized by sandwiching by the upper and lower separator rollers 13 and 14 as the shearing unit 7 shown Disconnect to prevent burrs. Automatically delivered to the scrap chopper 16 through the scrap S ₁ generated by the trimming the separator roll exit chute 15.

According to the above embodiment, the lower separator roll is attached to the trimmer output chute 1 and the separator roll output chute 15.
Since it is the interval due to the then saves the 14 connecting the two even if, it is possible to automatically deliver the scrap S ₁ to the scrap chopper 16.

Note that the present invention is not limited to the above embodiment,
It is also possible to connect only the separator roll exit side chute or both of them so that they can be extended and contracted, and various design changes are possible within the scope of the technical idea of the present invention.

〔The invention's effect〕

As described above, the scrap chute of the side trimmer of the present invention has a burr on the edge portion of the strip by forming the trimmer exit side scrap chute and / or the separator roll so as to be extendable and contractible. It is possible to automatically switch between the case where it may be possible and the case where there should not be a burr, and if there is a case where there is a burr, the strip-shaped scrap generated by the trimming is connected. It can be automatically discharged by the scraper chute on the trimmer exit side and the scrap chute on the separator roll exit side.

For this reason, the apparatus is automated, the number of workers can be reduced, and work safety can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view of a side trimmer according to one embodiment of the present invention, FIG. 2 is a side sectional view showing a change in an operation state of the device, FIG. 3 is an enlarged view of a main part of FIG. FIG. 4 is a schematic side sectional view of a conventional side trimmer, and FIGS. 5 to 7 are explanatory views showing a trimming operation of the side trimmer. 1 ... Trimmer exit side chute, 2 ... Overshoot, 3, 4 ... Air cylinder, 10 ... Side trimmer, 11 ... Trimmer upper blade, 12 ... Trimmer lower blade, 13 ... Upper separator roll, 14 ...... under the separator roll, 15 ...... separator roll exit side chute, 16 ...... scrap chopper, S ...... strips, S ₁ · S ₂ ...... scrap, t ...... strip thickness.

Claims (1)

(57) [Claims] 1. A trimmer for continuously shearing an edge portion of a metal strip, a separator roll disposed so as to be retractable with respect to a strip feed line, a trimmer exit side scrap chute and a separator roll exit side scrap chute. In the provided side trimmer, the trimmer exit side scrap chute and / or the separator roll exit side scrap chute are configured to be extendable and contractable, and the trimmer exit side scrap chute and the separator roll exit side scrap chute can be connected. A scrap chute with a side trimmer.