JP2006035392A - Side trimmer apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side trimmer apparatus capable of appropriately guiding cut trimmed chips to a chute, preventing clogging of the trimmed chips, and providing stable trimming work, in the side trimmer apparatus which finishes both end portions of a metallic band to prescribed width dimensions by a pair of upper and lower rotating round blades respectively for processing by delivering the cut trimmed chips through the chute provided at a lower portion on the delivery side of the rotating round blade. <P>SOLUTION: A chute upper cover 3 for guiding the chute 2 by pressing the cut trimmed chips 11a is provided at an upper portion of the chute 2, and a guide roll 4 for preventing clogging of the trimmed chips 11a is attached onto the top end of the chute upper cover 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a side trimmer device for a metal strip.

  The side trimmer device finishes both ends of the metal strip to a predetermined width by a pair of upper and lower rotating round blades, and sends out the trimmed scraps through a chute provided below the rotating side of the rotating round blade, The chopper device guides to a shearing or winding device and winds it up.

  In general, during high-speed running of a metal band or immediately after trimming, trim scraps do not enter the chute and deviate to the metal band feeding side, not only deteriorating the quality of the metal band product, but also wound around a table roll on the back. Productivity is reduced due to sticking.

Accordingly, various improvements have been made to prevent the above-described deterioration in quality and reduction in productivity. As one of them, a technique has been proposed in which a chute upper lid or a guide is arranged on the upper part of the chute, and thereby trimmed scraps are pushed down and guided appropriately to the chute (for example, patents). Reference 1 or Patent Document 2).
JP-A-60-127915 JP 09-168916 A

  By using the technique shown in Patent Document 1 or Patent Document 2 described above, the trimmed scraps that have been cut are pressed by the chute upper lid or the guide and are appropriately guided to the chute. Problems began to occur.

  That is, it is pressed into the chute upper lid, etc., and the trim scraps enter the chute while contacting the lower surface of the chute upper lid, etc. This is a problem that the trim debris is caught in the place where the trim debris flows and the trim debris becomes clogged.

  The present invention has been made to solve the above-described problem, and finishes both end portions of a metal strip to a predetermined width by a pair of upper and lower rotating round blades, and sends trimmed scraps to the rotating round blades. In the side trimmer device that sends out and processes through the chute provided on the lower side, the trimmed scraps can be properly guided to the chute, and the trimmed scraps can be prevented from clogging. An object of the present invention is to provide a side trimmer device that enables the above.

  As a result of intensive studies, the present inventors have found that the wear of the lower surface of the chute upper lid caused by the contact with the trim debris, which causes clogging of the trim debris, is most remarkable at the tip of the chute upper lid. This is because when the trim scraps are wide and thin, the trim scraps after being cut by the rotating round blade are twisted by 90 ° and pass through the chute while being pressed into the chute upper lid. Therefore, in particular, the tip portion of the chute upper lid comes into local contact with the sharp edge portion of the trim debris, thereby causing significant wear. As a result, clogging of trim debris starting from the worn portion is induced. Therefore, by changing the local contact state with the trim debris at the tip of the chute upper cover so as to disperse the wear, the wear of the tip of the chute cover is reduced and the occurrence of clogging of the trim debris can be prevented. I came up with the idea.

  The present invention has been made based on the above viewpoint and has the following features.

  [1] A side trimmer that finishes both ends of a metal strip to a predetermined width with a pair of upper and lower rotating round blades, and sends out trimmed scraps through a chute provided below the rotating side of the rotating round blade for processing. A side trimmer device characterized in that a chute upper lid for pressing trimmed trim waste is provided on the upper portion of the chute and a guide roll is attached to the tip of the chute upper lid.

  [2] The side trimmer device according to [1], wherein a lower end of the guide roll protrudes downward by a predetermined amount from an extension line of a lower surface of the chute upper lid.

  In the present invention, the chute upper cover is provided on the upper part of the chute so as to press the trimmed scraps, so that the trimmed scraps can be properly guided to the chute and a guide roll is provided at the tip of the chute upper cover. Because it is attached, the rotation of the guide roll in contact with the trim debris reduces the wear on the lower surface of the tip of the chute upper lid, thereby preventing the occurrence of clogging of the trim debris and enabling a stable trimming operation. .

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a side trimmer device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA in FIG.

  As shown in FIG. 1, the side trimmer device according to this embodiment includes a rotating round blade 1 having an upper blade 1 a and a lower blade 1 b, a chute 2 provided below the delivery side of the rotating round blade 1, and a chute The chopper chute 5 provided on the extension line 2 and the chopper 6 installed on the delivery side of the chopper chute 5 are provided. A chute upper lid 3 is provided at the top of the chute 2, and a non-driven guide roll 4 is attached to the tip of the chute upper lid 3 (on the outlet side of the chute 2).

  In the side trimmer device configured as described above, the rotating round blade 1 rotates as the metal strip 11 travels, and both ends of the metal strip 11 are cut to finish to a predetermined width dimension. Then, the trim scraps 11 a cut by the rotating round blade 1 are pressed down by the chute upper cover 3 provided on the upper portion of the chute 2 and appropriately guided to the chute 2 provided below the rotating round blade 1 on the delivery side. It is burned.

  The trim scraps 11 a guided to the chute 2 pass through the chute 2 while being in contact with the lower surface of the chute upper lid 3, and are subsequently guided to the chopper chute 5. At that time, since the guide roll 4 is attached to the tip of the chute upper lid 3, as shown in FIG. 2, the sharp edge portion of the trim scrap 11a twisted by 90 ° contacts the tip of the chute upper lid 3. However, wear dispersion is achieved by the rotation of the guide roll 4, wear on the lower surface of the tip of the chute upper lid 3 is reduced, and clogging of the trim debris 11a is prevented.

  Incidentally, FIG. 3 shows a case of a conventional chute upper cover in which no guide roll is provided, and the tip of the chute upper cover 3 is locally contacted with a sharp edge portion of the trim scrap 11a twisted by 90 °. The parts wear out violently.

  The trim scraps 11 a guided to the chopper chute 5 are shredded by the chopper 6 after passing through the chopper chute 5.

  In this manner, in this embodiment, the trimmed scrap 11a can be appropriately guided to the chute 2 by the chute upper lid 3 provided on the upper portion of the chute 2, and the guide roll attached to the tip of the chute upper lid 3 The occurrence of clogging of trim debris 11a can be prevented by 4 and stable trimming can be performed.

  In addition, it is preferable that the lower end of the guide roll 4 attached to the tip of the chute upper lid 3 protrudes downward by a predetermined amount (for example, 0.8 mm) from the extension line of the lower surface of the chute upper lid 3. This is because the contact between the trim scraps 11a and the lower surface of the distal end portion of the chute upper lid 3 is alleviated, and the wear reduction effect of the lower surface of the distal end portion of the chute upper lid 3 is further increased.

  In addition, the material of the guide roll 4 can be any of hardened steel such as SS, SUS, S45C, etc., but the best durability is obtained especially when using S45C hardened steel. Compared to the above, the service life is more than three times.

1 is an overall configuration diagram of an embodiment of the present invention. It is AA sectional drawing of FIG. It is explanatory drawing of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotating round blade 1a Rotating round blade upper blade 1b Rotating round blade lower blade 2 Chute 3 Chute upper cover 4 Guide roll 5 Chopper chute 6 Chopper 11 Metal strip 11a Trim scrap

Claims (2)

  In the side trimmer device that finishes both ends of the metal band to a predetermined width dimension by a pair of upper and lower rotating round blades, and sends out the trimmed scraps through a chute provided below the rotating side of the rotating round blade. A side trimmer device characterized in that a chute upper lid for pressing trimmed trim waste is provided at the upper portion of the chute and a guide roll is attached to the tip of the chute upper lid.   The side trimmer device according to claim 1, wherein a lower end of the guide roll protrudes downward by a predetermined amount from an extension line of a lower surface of the chute upper lid.

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