KR100770215B1 - Device for guiding edge scrap in steel sheet trimming line - Google Patents

Abstract

In the side trimming operation of cutting the edge portion of the steel sheet strip, an edge scrap induction apparatus of a trimming device for guiding the edge scrap cut in the trimmer knife to the chopper drum is provided. Edge scrap guide device according to the present invention includes a guide unit having a first, second trimmer chute hingedly coupled by a hinge pin to provide a movement path of the edge scrap from the trimmer knife to the chopper drum; An edge scrap introduction portion having an eccentric shaft and a support rod to periodically elevate the inlet of the guide portion; An edge scrap propagation unit for allowing the first and second trimmer chutes to repeat the extended and closed states periodically; It is installed between the guide portion and the chopper drum includes a chopper entry portion for entering the edge scrap between the upper and lower chopper drum.

Trimming, Strip, Edge Scrap, Trimmer Knife, Trimmer Suit, Chopper Drum, Hinge Pin, Support Rod

Description

Edge scrap induction device of steel sheet trimming equipment {DEVICE FOR GUIDING EDGE SCRAP IN STEEL SHEET TRIMMING LINE}

1 is a schematic view of the edge scrap induction apparatus according to the present invention.

Figure 2 is an exploded perspective view of the guide portion and the edge scrap introduction portion shown in FIG.

Figure 3 is a perspective view of the edge scrap progression portion and the Chopper introduction portion shown in FIG.

4 is a schematic view of a steel sheet trimming facility according to the prior art;

Explanation of symbols on the main parts of the drawings

1: trimmer knife 2: chopper drum

11: first trimmer chute 12: second trimmer chute

14: hinge pin 20: edge scrap introduction

30: edge scrap progression part 40: Chopper introduction part

The present invention relates to a trimming process of the steel sheet manufacturing process, and more particularly to an edge scrap induction apparatus of the trimming equipment for guiding the edge scraps cut by the trimmer knife to the Chopper equipment.                         

In general, stainless steel sheet is polished to remove surface defects by polishing the surface of the strip before shipment, and to provide surface roughness and gloss, and the finished strip is finished at both edges of the strip according to the width required by the consumer. Trimming is performed to cut the part.

4 is a schematic diagram of a trimming arrangement according to the prior art, in which the trimming arrangement is provided with a strip 4 and cuts the edge portion of the strip 4 with the lower trimmer knives 1a and 1b and in the strip 4. Guide chute 5 for receiving the cut edge scraps 4a and cutting them into pieces and guides the upper and lower chopper drums 2a and 2b between the upper and lower chopper drums 2a and 2b. Is made of.

However, the guide chute (5) in the process of guiding the edge scraps (4a) cut from the trimmer knife (1) with the Chopper drum (2), only to prevent the edge scraps (4a) to fall to the floor, the edge scraps ( When 4a) is bent upwards or laterally, the movement of the edge scraps 4a cannot be properly guided.

As a result, the edge scrap 4a is caught inside the guide chute 5 so that cutting of the edge scrap 4a is not performed, and the edge scrap 4a does not accurately enter between the upper and lower chopper drums 2a and 2b. When caught by the drum 2a and bent upwards, the chopper knife is broken, which causes problems such as a failure of the trimming equipment.

Therefore, the present invention is to solve the above problems, an object of the present invention is to cut the edge scraps by accurately guiding the edge scraps cut from the trimmer knife to the Chopper equipment during side trimming work to cut the edge portion of the steel sheet strip To provide an edge scrap induction apparatus of the steel sheet trimming equipment for smoothing.

In order to achieve the above object, the present invention,

In the trimming equipment which has the trimmer knife which cuts the edge part of a strip, and the chopper drum which receives the edge scrap cut from the strip, and cuts it into pieces, The 1st, 2 trimmer chute which hinge-engages by a hinge pin is attached. A guide portion providing an edge scrap movement path, an edge scrap introduction portion having an eccentric shaft and a supporting rod to periodically raise and lower the entrance of the guide portion, and a first and second trimmer chutes periodically unfolded and closed; Provides an edge scrap induction apparatus of the steel sheet trimming equipment including an edge scrap progression portion to be repeated, and a chopper entry portion installed between the guide portion and the chopper drum to enter the edge scrap between the upper and lower chopper drums.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view of a trimmer installation having an edge scrap induction apparatus according to the present invention, and FIG. 2 is an exploded perspective view of the guide portion and the edge scrap introduction portion shown in FIG. 1.

According to the drawing, the trimmer facility is provided with upper and lower trimmer knives 1a and 1b for cutting the edge portions of the strip, and upper and lower chopper drums 2a and 2b for receiving and cutting edge scraps cut from the strip. The edge scrap induction apparatus according to the present invention connects the trimmer knife 1 and the chopper drum 2 to induce the edge scrap to the chopper drum 2.

The edge scrap guide device includes a guide part 10 having first and second trimmer chutes 11 and 12 to provide a moving path of the edge scrap, and a guide part 10 facing the trimmer knife 2. Edge scrap inlet 20 for periodically raising and lowering one side, edge scrap progression part 30 for controlling the unfolding and closing operations of the first and second trimmer chutes 11 and 12, and the edge scrap top and bottom choppers. Chopper entry portion 40 for entering between the drum (2a, 2b).

First, the guide part 10 is provided between the trimmer knife 1 and the chopper entry part 40 and the first and second trimmer suits 11 12 having hinge coupling parts 13 on one side facing each other. And hinge pins 14 penetrating through the hinge coupling portions 13 of the first and second trimmer chutes 11 and 12, and the first and second trimmer chutes 11 and 12 respectively have a chopper entry part 40. It is made of a semi-circular shape gradually widening toward the trimmer knife (1).

The first and second trimmer chutes 11 and 12 are hingedly coupled by the hinge coupler 13 and the hinge pin 14 to be rotated around the hinge pin 14, and the edge scraping process will be described later. The expanded state and the closed state are repeated by the part 30 to serve to guide the edge scrap cut from the trimmer knife 1 to the chopper entry part 40.

The edge scrap introduction portion 20 is fixed to one end of the eccentric shaft 23 having the connection shaft 22 eccentrically rotated by the driving of the motor 21 and one end of the connection shaft 22 and along the path of the connection shaft 22. It consists of a supporting rod 24 that rotates and supports one end of the hinge pin 14.

Thus, when the eccentric shaft 23 is rotated by the driving of the motor 21 and the connecting shaft 22 and the supporting rod 24 rotate along the circular trajectory, the hinge pin 14 supported by the supporting rod 24 is supported. By moving the rod 24 in the vertical direction, one end of the first and second trimmer chutes 11 and 12 is periodically raised and lowered. At this time, the raising and lowering height of the hinge pin 14 can be adjusted according to the eccentricity of the connecting shaft (22).

Thus, as the edge scrap introduction portion 20 periodically lifts one end of the first and second trimmer chutes 11 and 12 facing the trimmer knife 1, the edge scrap cut from the trimmer knife 1 is removed. The first and second trimmer chutes 11 and 12 are correctly entered.

3 is an enlarged view of the edge scrap progression portion 30 and the chopper introduction portion 40 shown in FIG. 1, first, the edge scrap progression portion 30 is a pair of supports 31 fixed to the side of the base frame 3. And a pair of first cylinders 32 rotatably provided between the support members 31 between the first and second trimmer chutes 11 and 12, and the cylinder rods 33 of the first cylinders 32, respectively. It includes a connecting bar 34 for connecting the first and second trimmer chute (11, 12).

When the connecting bar 34 is fixed to the bottom surfaces of the first and second trimmer chutes 11 and 12, and the cylinder rod 33 is expanded by the operation of the first cylinder 32, the first and second hinge pins 14 are centered around the hinge pin 14. , When the two trimmer chutes 11 and 12 are closed and the cylinder rod 33 is reduced, the first and second trimmer chutes 11 and 12 are opened around the hinge pin 14 to control the open / close operation. .

As a result, the first and second trimmer chutes 11 and 12 periodically repeat the opened and closed states by the continuous expansion and contraction operation of the cylinder rod 33. In order to prevent the separation of the edge scrap introduced into the first and second trimmer chute (11, 12) a slight vibration occurs in the process to lead the edge scrap to the chopper introduction portion 40 naturally.

In addition, the chopper introducing portion 40 is a cone-shaped chopper chute 42 fixed to the ends of the first and second trimmer chutes 11 and 12 through a circular connection ring 41, and the chopper at the end of the chopper chute 42. The upper roll 43 and the fixing roll 44 respectively disposed on the upper and lower portions of the chute 42, and the fixing fixed around the rotation guide 45 and the chopper chute 42 supporting the upper roll 43. And a second cylinder 47 for controlling the raising and lowering of the upper roll 43 through the holder 46.

Both ends of the rotation guide 45 are fixed to the fixed holder 46, and the fixed holder 46 is connected to the cylinder rod 48 of the second cylinder 47, so that the cylinder rod is operated by the operation of the second cylinder 47. When the 48 is reduced, the fixed holder 46 and the rotation guide 45 are lifted to raise the upper roll 43, and when the cylinder rod 48 is expanded, the fixed holder 46 and the rotation guide 45 are lifted. It is lowered to lower the upper roll 43.

At this time, at the end of the chopper chute 42 facing the connection ring 41, a sensor 49 for detecting an edge scrap is installed. When the sensor 49 detects an entry of the edge scrap, the second cylinder 47 is opened. It automatically operates to lower the upper roll 43. Therefore, the edge scrap can be accurately entered between the upper and lower chopper drums 2a and 2b without being bent in the vertical direction by the upper roll 43 and the fixing roll 44.

Hereinafter, the operation of the present invention will be described with reference to FIGS. 1 and 2.

First, the strip is provided to the upper and lower trimmer knives 1a and 1b to cut the edge portion, and the edge scrap cut from the strip is led to the first and second trimmer chutes 11 and 12. Here, as the motor 21 of the edge scrap introduction portion 20 is driven to rotate the eccentric shaft 23, the connecting shaft 22 and the support rod 24 rotates along a circular track, The hinge pin 14 which couples the 2 trimmer chutes 11 and 12 raises and falls periodically.

As such, the edge scrap introduction portion 20 periodically lifts one end of the first and second trimmer chutes 11 and 12 facing the trimmer knife 1, thereby cutting the edge scraps cut from the trimmer knife 1 to the first and second. Make sure to enter the trimmer chute (11, 12) correctly.

And when the edge scrap proceeds to the inside of the first and second trimmer chute (11, 12), the hinge cylinder (14) as the first cylinder 32 of the edge scrap progression portion 30 is operated to expand the cylinder rod (33) Close the first and second trimmer chute (11, 12) around the center, and as the cylinder rod (33) is reduced, the first and second trimmer chute (11, 12) are opened around the hinge pin (14). The 1 and 2 trimmer chutes 11 and 12 are repeated in the open and closed states.

Therefore, the edge scrap propagation unit 30 applies a constant vibration to the edge scrap while preventing the separation of the edge scraps introduced into the first and second trimmer chutes 11 and 12 to naturally advance the edge scrap to guide the chopper introduction unit 40. do.

Next, when the edge scrap enters the chopper chute 42 of the chopper introduction portion 40, the sensor 49 detects the entry of the edge scrap and automatically operates the second cylinder 47, and the cylinder rod 48 Is reduced to lower the upper roll 43 by lowering the fixed holder 46 and the rotation guide 45. As a result, the pair of upper rolls 43 and the fixed rolls 44 disposed at the exit of the chopper chute 42 prevent the edge scrap from bending, and accurately enter the edge scraps between the upper and lower chopper drums 2a and 2b. .

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

As described above, according to the present invention, during the side trimming operation of cutting the edge portion of the steel sheet strip, the edge scrap cut by the trimmer knife is accurately guided to the chopper equipment to smoothly cut the edge scrap. This eliminates the problem of edge scraping and prevents the trimming equipment from breaking, for example, damage to the chopper knife due to the edge scrap detachment.

Claims (3)

In the trimming equipment comprising an upper and lower trimmer knife for cutting the edge portion of the strip, and an upper and lower chopper drum for receiving and cutting the edge scrap cut from the strip into pieces. Cut between trimmer knives with semi-circular first and second trimmer chutes formed between the trimmer knife and the chopper drum to form hinge couplers on opposite sides and hinge pins penetrating the hinge couplers of the first and second trimmer chutes. A guide unit for guiding the edge scraps to the chopper drum; And A pair of first cylinders installed under the first and second trimmer chutes between the first and second trimmer chutes, and a pair of connecting bars connecting the cylinder rods of the first cylinders and the bottoms of the respective first and second trimmer chutes. Edge scrap progression portion provided so that the first and second trimmer chute periodically repeats the open and closed states Edge scrap induction apparatus of the steel sheet trimming equipment comprising a. The method of claim 1, An edge scrap introduction portion is formed between the trimmer knife and the guide portion, and the first and second trimmers include an eccentric shaft having an eccentric coupling shaft, and a supporting rod fixed to the coupling shaft and supporting one end of the hinge pin. Edge scrap induction device of steel sheet trimming equipment which periodically raises and lowers the chute entrance. The method of claim 1, A chopper introduction portion is formed between the guide portion and the chopper drum, and the chopper introduction portion is disposed at the top and the bottom of the chopper chute chute, which is fixed to the ends of the first and second trimmer chute through the connection ring, respectively. Edge scrap induction apparatus of the steel sheet trimming equipment having an upper roll and a fixed roll, and the second cylinder for controlling the rise and fall of the upper roll along the edge scrap progression to enter the edge scrap into the Chopper drum.

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