KR100762437B1 - Side trimming device of electrical steel sheet - Google Patents

Abstract

A side trimming device of an electrical steel sheet is provided to prevent a scrap generated from the electrical steel sheet during side trimming from being deflected, and prevent generation of burrs at a cut surface. A side trimming device of an electrical steel sheet includes a housing(110), a spring, a support plate(130), an inverse L-shaped rod(150), a grip bar(160), an operating plate(180), an operating cylinder(190), and a roll(152). The housing is arranged in the space formed between an upper knife and a lower knife, and has both side surfaces with support brackets(140) having elongated holes(144). The spring is fixed at an inner bottom surface of the housing. The support plate is mounted onto the spring and inserted in the housing, and has an upper surface with a plurality of balls(132). The rod is inserted into the elongated hole and bent such that the rod is supported through a guide(170) fixed at the housing. The grip bar is integrally fixed onto the rod, and holes the upper surface of the support plate. The operating plate is mounted on one surface of the housing where bent ends of the rods meet, and has a width gradually increasing as it goes from a top toward a bottom. The operating cylinder is connected to the operating plate, and fixed at the housing. The roll is fixed at an end of the rod, and contacts a side surface of the operating plate.

Description

Side trimming device of electrical steel {SIDE TRIMMING DEVICE OF ELECTRICAL STEEL SHEET}

1 is an exemplary schematic perspective view showing a side trimming operation state according to the prior art;

Figure 2 is a schematic diagram showing a working state according to the prior art,

Figure 3 is an exemplary view showing the installation position of the device according to the invention,

4 is a perspective view of a device according to the invention,

5 is a side cross-sectional view of the device according to the invention.

♧ description of the symbols for the main parts of the drawing ♧

110..Housing 120 .... Spring

130..Support plate 132.Ball

140 .... Support Bracket 150 ...

160 ... grip bar 170 ... fixed guide

180 .... Operating plate 190 .... Operating cylinder

210..Top Knife 220 .... Bottom Knife

The present invention relates to a side trimming device of an electrical steel sheet, and more particularly, to a side trimming device of an improved electrical steel sheet so that a trimmed surface thereof can be formed well when trimming a side of an electrical steel sheet.

In general, a thin insulating film (coating layer) is formed on the surface of the electrical steel sheet.

Such an insulating film may be unevenly coated on both edge portions of the electrical steel sheet, and may be adjusted to a width corresponding to the demand of the demand, or the defective portion mainly occurs at the edge portion, so as to cut and remove the same as illustrated in FIG. 1. The side trimming equipment is used to trim the sides of the steel sheet, that is, both edge portions.

At this time, the trimming equipment is a ring knife (2a, 2b) is provided with rubber spacers (3a, 3b) is to be trimmed while passing the steel plate between them.

By the way, as shown in Figure 2, the ring knife (2a, 2b) is provided with a pair of upper and lower, respectively, and the top and bottom are shifted with a step to each other so that the scrap (3) coming off after cutting from the steel sheet (S) is bent while sagging This results in a disadvantage that the edge cut surface of the steel sheet S is not clean and has a poor edge surface such as a burr 4.

Further, when the trimmed edge portion of the steel sheet S is poor, the steel sheet S may not be uniformly wound during the subsequent winding operation of the steel sheet S, and may be pulled to one side, resulting in a secondary problem due to the winding failure. .

Conventionally, in order to prevent such a phenomenon, the operator had to stop the equipment periodically at intervals of 8 to 10 hours, go directly into a narrow space, and replace the damaged circular knives (2a, 2b) whose cutting surfaces were damaged. Excessive consumption, not only drastically lowers productivity, but also lowers the error rate, and most of all, there is a significant disadvantage of not ensuring worker safety.

The present invention was created in view of the above-described problems of the prior art as described above, and cuts the edges of the steel sheet evenly and neatly so as not to sag the scrap separated from the steel sheet during side trimming. The main object of the present invention is to provide a side trimming device of an electrical steel sheet, so that the side trimming work does not need to be interrupted periodically and the safety of the worker is sufficiently ensured.

The present invention, the housing is provided in the space between the horizontal width of the upper knife and the lower knife, the support bracket having a long hole on both sides; A spring fixed to an inner bottom surface of the housing; A support plate seated on an upper portion of the spring and inserted into the housing and provided with a plurality of balls on an upper surface thereof; A round bar having a 'b' shape fitted into the long hole and bent and supported by a fixing guide fixed to one surface of the housing; A grip bar which is integrally fixed on the round bar of the portion passing through the long hole and grips the upper surface of the support plate; An operating plate disposed on one surface of the housing where the bent ends of the round bar are collected and having a width that increases from an upper end to a lower end; An operation cylinder connected to the operation plate and fixed to the housing; The side trimming device of the electrical steel sheet is fixed to the end of the round bar and comprises a roll supported in contact with the side of the operating plate.

At this time, the housing also has a feature that a plurality of supporting plates are stacked on the spring.

In addition, the support plate is characterized in that it further includes a concave indentation in the length-side length center portion thereof corresponding to the grip bar.

In addition, the spring is characterized in that it is an expansion spring.

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

Figure 3 is an exemplary view showing the installation position of the device according to the invention, Figure 4 is a perspective view of the device according to the invention, Figure 5 is a side cross-sectional view of the device according to the invention.

As shown in (a) and (b) of FIG. 3, the side trimming device 100 of the present invention has a step (eccentricity) of the upper knife 210 and the lower knife 220 which are trimmed while the steel sheet S passes. It is installed in the space formed by).

That is, the scrap (S ') is trimmed by being trimmed by sufficiently and stably supporting the lower surface of the scrap (S') that is separated from the steel sheet (S) and then moved to the scrap chopper (300) while trimming. Side trimming device 100 of the present invention is installed so as not to sag.

4 to 5, the side trimming device 100 includes a rectangular box-shaped housing 110 having a flange-like bracket 112 for fixing at the bottom.

At this time, the bracket 112 is not explicitly shown in the drawings, but is used as a means for supporting and fixing it through a known fixing means when installing the present invention the side trimming device 100 in the lower portion of the scrap (S ').

In addition, a spring 120 is installed on an inner bottom surface of the housing 110. The spring 120 is preferably an expansion spring.

In addition, the housing 110 is built in the support plate 130, the support plate 130 is pushed upward by the elastic repulsive force of the spring 120 to be embedded in the form seated on the upper portion of the spring 120. It is preferable to be able to be installed, and may also be built in only one, or may be embedded in a plurality of stacked as shown in Figure 5 in the form of loading the ammunition, if necessary.

In particular, the support plate 130 preferably has a form in which the ball 132 is half-embedded so that a plurality of balls 132 can be rotated on the upper surface thereof. It is preferable that the recesses are formed in a shape in which the recesses 134 are formed by concave in a direction facing each other in a substantially rectangular shape.

Here, the ball 132 is in contact with the lower surface of the scrap (S ') when the scrap (S') is cut (trimmed) from the steel sheet (S) on the basis of the cutting line (T) this scrap (S ') ) Will be used as a means to support it not to sag downwards.

On the other hand, support brackets 140 of the same shape and size are formed on both sides of the housing 110, preferably, the surfaces corresponding to the concave portions 134, respectively.

In this case, an operation groove 142 having a shape and a size corresponding to the concave inlet 134 is formed on an upper surface of the support bracket 140.

In addition, the long hole 144 is formed in the upper end of both sides of the support bracket 140.

In addition, the long hole 144 penetrates the round bar 150 having a shape bent in a substantially 'B' shape.

The round bar 150 is movable within the range of the long hole 144, and is also locked by a member such as a pin so as not to be easily separated in the longitudinal direction of the round bar 150 from the long hole 144.

In addition, an arc-shaped grip bar 160 is fixed to the round bar 150 integrally, and the grip bar 160 is located in the space inside the recess 134 and the operation groove 142 described above. It is installed.

Furthermore, an elastic spring 162 is installed between the round bar 150 and the inner wall surface of the support bracket 140 such that the round bar 150 is always moved toward the support plate 130, that is, the grip bar 160. Zooming is particularly desirable, so that) always remains held by holding the support plate 130.

In addition, the round bar 150 has its bent end penetrating the fixing guide 170 to be in contact with both sides of the operation plate 180, the operation plate 180 is connected to the operation cylinder 190 Bar is configured to be moved up and down in accordance with the operation of the operation cylinder 190, wherein the operation plate 180 is not shown, but the guide means to move up and down without being easily separated from the front of the housing 110 Naturally, it should be configured to be guided by.

In addition, the fixing guide 170 is provided in a form that is completely fixed to the front of the housing (1100) in which the operating plate 180 is installed, the operating plate 180 is formed that both sides are curved in a rough saddle shape. Bars, in particular, are preferably formed in such a shape that the bottom width thereof is gradually larger (wider) than the top width.

In addition, the roll 152 is provided at the end of the round bar 150 in contact with the operating plate 180 so that the rolling contact is possible, and the roll 152 is a bracket 154 integrally formed with the round bar 150. Supported by

The operating relationship of the present invention made of such a configuration is as follows.

When the steel sheet S enters between the upper knife 210 and the lower knife 220 for the side trimming operation, the lower surface of the scrap S ′, which is a portion to be cut from the steel sheet S around the cutting line T, is formed. It is supported by rolling contact by a plurality of balls 132 protruding from the upper surface of the support plate 130.

In this state, even when a pressing force is applied by the upper knife 210 when both edge portions of the steel sheet S are trimmed by the upper knife 210 and the lower knife 220, the lower end of the scrap S '. Since the surface is supported by the support plate 130 to maintain approximately the same height as the steel plate (S), the deflection phenomenon of the scrap (S ') does not occur, and the resulting cut surface is very uniform and even burr ( Burr) occurrence is trimmed neatly in a minimized state.

Subsequently, the trimmed scrap S 'is moved to the scrap chopper 300, and a continuous trimming operation is performed.

If the ball 132 is worn while repeatedly performing such a process, the support plate 130 is pushed up by the spring 120 embedded in the housing 110 to the limit of the wear, and thus the service life is extended. If more wear is made, the upper and lower steps may be generated as much as the amount of wear, and the same problem as in the prior art may occur again. In this case, when the operation cylinder 190 is raised while the line is stopped, the operation plate 180 is As the roll 152 in contact with it is pushed up, the round bar 150 is retracted while compressing the elastic spring 162 in the long hole 144.

Then, since the grip bar 160 is separated from the upper portion of the support plate 130, the support plate 130 can be easily separated from the housing 110.

In this state, if the magazine is replaced with an extra support plate or described above in another embodiment, the water level built directly below the replacement support plate 130 by the expansion action of the spring 120 installed therein automatically The support plate is raised, and when the support plate is finally raised, the operator returns the operation cylinder 190 to its original position so that the replaced support plate can be firmly fixed by the grip bar 160, which is much faster and safer than before. The support plate replacement can be easily performed.

As described in detail above, the present invention prevents the deflection of the scrap generated during the side-trimming of the electrical steel sheet, thereby preventing burrs from occurring on the cutting surface, and maintaining the cutting surface more uniformly and cleanly to suppress subsequent defects. It also provides the effect of improving the steel plate quality.

In addition, it extends the service life of the side trimming equipment, thereby improving productivity.

Claims (4)

A housing 110 installed in a space between the horizontal widths of the upper knife 210 and the lower knife 220, and having a support bracket 140 having a long hole 144 on both sides thereof; A spring (120) fixed to an inner bottom surface of the housing (110); A support plate 130 seated on an upper portion of the spring 120 and inserted into the housing 110 and provided with a plurality of balls 132 on an upper surface thereof; A round bar 150 having a 'b' shape fitted into the long hole 144 and then bent and supported by a fixing guide 170 fixed to one surface of the housing 110; A grip bar 160 integrally fixed on the round bar 150 passing through the long hole 144 and gripping an upper surface of the support plate 130; An operating plate (180) disposed on one surface of the housing (110) where the bent ends of the round bar (150) gather and having a width that increases from an upper end to a lower end; An operation cylinder 190 connected to the operation plate 180 and fixed to the housing 110; The side trimming device of the electrical steel sheet, characterized in that it comprises a roll (152) fixed to the end of the round bar (150) and in contact with the side of the operating plate (180). The method according to claim 1, The housing 110, the side trimming device of the electrical steel sheet, characterized in that a plurality of supporting plates 130 are laminated on the spring (120). The method according to claim 1; The support plate (130) is a side trimming device of the electrical steel sheet further comprises a concave inlet portion 134, the length of the long side of the length side corresponding to the grip bar (160). The method according to claim 1; The spring 120 is a side trimming device of an electrical steel sheet, characterized in that the expansion spring.

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