JPH0750361Y2 - Long strip - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a long strip material, and particularly to a long strip steel material, a long strip aluminum material, etc., which is wound in a coil shape at the time of shipping for packing. The present invention relates to improvement of the shape of the end portion of a strip-shaped material.

[0002]

2. Description of the Related Art A long strip-shaped steel material, a long strip-shaped aluminum material, or the like is compressed and then tightly wound into a coil for packing for a user. At this time, if the tip of the long strip is left cut at a right angle, the edge of this tip will bite into the inner surface of the long strip wound around it and damage the inner surface. . The user will cut off the scratched tip when the long strip is used by the user, so leaving the tip cut at a right angle will cause waste and ensure efficient use of the product. I can't. Therefore, the leading edge of the long strip is removed before winding.

FIG. 2 is a view showing the shape of a side surface of an end portion of a long strip material which has been subjected to conventional edge treatment. Long strip 1
The edge 12 of No. 1 is cut off obliquely to form an inclined surface 12a forming an acute angle θ with the inner surface 13a of the long strip-shaped material. The angle θ formed by the inclined surface 12a and the inner surface 13a is usually about 5 to 15 °. In this manner, the end portion 11 of the long strip-shaped material is cut off obliquely to form the inclined surface 12a extending in the lateral direction of the long strip-shaped material. Outer surface 1
The included angle α with 3b is widened so that the inner surface of the long strip wound around it is not damaged by the corner portion 14. Note that reference numerals 5 and 15 are rotary blade units of a processing device described later.

[0004]

In order to tightly wind a long strip of steel or aluminum into a coil at the time of shipment, a strong winding force is usually required. However, in the end portion shape of the conventional long strip shown in FIG. 2, since only one inclined surface 12a is formed, the included angle α between the inclined surface 12a and the outer surface 13b of the long strip is small. , Corner 14
Is still sharp. Therefore, when the conventional long strip material is wound with such a strong force, the corner portion 14 bites into the inner surface 13a of the long strip material, and the inner surface 13a.
The problem of being scratched is not fully solved.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and in a long strip-shaped member having an inclined surface at the end thereof, the end portion has the long length. A plurality of inclined surfaces extending in the lateral direction of the strip-shaped material and forming an acute angle with the inner surface of the long strip-shaped material, and the inclination angle of these inclined surfaces with respect to the inner surface is the long strip-shaped material. It is characterized in that it is configured such that the inclined surface located on the tip end side of the material end portion becomes larger.

That is, in the long strip of the present invention, a plurality of inclined surfaces extending in the lateral direction of the long strip and having an acute angle with the inner surface of the long strip are provided at the ends. The shape of this end portion is such that the inclination angle of these inclined surfaces with respect to the inner surface of the long strip-shaped member is larger on the inclined surface on the tip side. Therefore, the included angle between the adjacent inclined surfaces, and
The included angle between the rearmost inclined surface of these inclined surfaces and the outer surface of the long strip becomes wide, and even if the long strip is wound with a strong force, the corner portion between the inclined surfaces is large. ,
And, since the corner portion of the rearmost inclined surface and the outer surface of the long strip does not cut into the inner surface of the long strip,
The inner surface of the long strip is not scratched. In addition, the "inclusion angle" referred to here is a band-shaped material having an angle formed by adjacent slanting surfaces and an angle formed by the slanting surface located on the rearmost side and the outer surface of the long strip-shaped material. It means the corner that exists on the side.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view showing the shape of the end of an embodiment of the long strip-shaped material of the present invention. The edge 2 of the end 1 is scraped off to provide a first inclined surface 2a and a second inclined surface 2b. The first inclined surface 2a is formed so that the inclination angle with respect to the inner surface 3a of the long strip is θ, and the second inclined surface 2b is inclined with respect to the inner surface 3a by θ / 2. Is formed. The thickness t of the long strip 1 is about 0.4 mm to 3.2 mm. In the long strip-shaped material of the present invention, the end portion 1 is thus cut into two steps to form two inclined surfaces, and the second inclined surface 2b on the rear side is formed.
The inclination angle with respect to the inner surface 3a is 1/2 of the inclination angle of the first inclined surface 2a on the distal end side with respect to the inner surface 3a. Therefore, the included angle β (β = 180 ° −θ + θ / 2) of the corner 4a and the included angle γ (γ = 180 ° −θ / 2) of the corner 4b existing at the end 1 are shown in FIG. It is wider by θ / 2 than the included angle α (α = 180 ° −θ) between the inclined surface 12 and the corner portion 14 of the outer surface 13b of the conventional long strip.

Specifically, in the conventional long strip shown in FIG. 2, when the inclination angle θ of the inclined surface 12a with respect to the inner surface 13a is 15 °, the included angle α of the corner portion 14 is 165 ° (α = 180 ° -15 °), the long strip of the present invention has an inclination angle θ of 15 ° with respect to the inner surface 3a of the first inclined surface 2a and an inner surface of the second inclined surface 2b. If the inclination angle θ / 2 with respect to 3a is 7.5 °, the included angles β and γ of the corner portions 4a and 4b are 172.5, respectively.
° (β = 180 ° −15 ° + 7.5 °, γ = 18
0 ° -7.5 °), which is 7.5 ° wider than the included angle of the corner portion 14 of the conventional long strip. Therefore, when the long strip is wound, the corners 4a and 4b of the end portion 1 do not cut into the inner surface of the long strip wound around the end, and the inner surface is damaged by the corners 4a and 4b. Absent.

The inclined surfaces 2a and 2b are formed by mechanically cutting a long strip material using a processing device. Since the tip of the long strip is usually deformed in the thickness direction or in both the thickness direction and the longitudinal direction, it has been very difficult to mechanically remove the edge. By using the edge processing device described in Japanese Patent Application Laid-Open No. 4-152012 by the present applicant, a flat inclined surface having a desired inclination angle can be easily obtained.

The edge processing device described in the above publication is specifically a milling machine type cutting device.
In this edge processing device, the longitudinal end of the long strip is positioned at the origin (line indicated by reference character P in FIG. 1) in numerical control, and then the vicinity of the tip is clamped by the clamping device from the thickness direction. A rotary blade unit (indicated by reference numeral 5 in FIG. 1) provided so as to be movable in the width direction of the strip-shaped material is brought into contact with the leading end of the long strip-shaped material to perform cutting. This cutting device is configured so that the rotary blade unit can move in the width direction of the long strip-shaped material while following the deformation in the thickness direction of the long strip-shaped material or the deformation in the thickness direction and the longitudinal direction. A flat cutting surface can be formed even if there is such deformation at the end of the long strip.

The inclination angle of the inclined surface formed at the end of the long strip-shaped material is determined by the inclination of the rotation axis S of the rotary blade unit 5 with respect to the axis Y perpendicular to the surface of the end of the long strip-shaped material. In the above-mentioned edge processing apparatus, the rotary blade unit 5 is attached to the frame body of the apparatus via the attachment member, and the rotary blade unit 5 and the attachment member, and the attachment member and the frame body are attached by fastening bolts respectively. It has a structure. In the mounting portion between the rotary blade unit and the mounting member, a circular arc-shaped long groove is provided on the mounting member side, and the position of the bolt is adjusted by this long groove to move the rotary blade unit 5 to the end portion 1 of the long strip-shaped material. It is configured to be able to adjust the mounting angle to be brought into contact. By adjusting this attachment angle, the inclination angle of the inclined surface formed at the end can be adjusted. Also, in the mounting portion between the mounting member and the frame, an arcuate long groove is provided on the side of the mounting member, and the position of the bolt can be adjusted by this long groove.
By adjusting the position of this bolt, the inclination angle in the rotary blade feed direction at the time of edge cutting can be adjusted.

The processing in the above-mentioned edge processing apparatus is performed by manually setting the mounting angle of the rotary blade unit 5, that is, the tilt angle of the rotary shaft S with respect to the axis Y and the tilt angle in the feed direction of the rotary blade. However, the position and angle of the rotary blade unit 5 may be set using the NC control method or the PSC (programmable sequence control) control method. In a processing device incorporating this control method, by selecting the data for each job calculated in advance and inputting it to the computer,
For example, the servo motor sets the horizontal positioning of the rotary blade unit 5, the tilt angle θ and the cutter stroke, and the hydraulic cylinder sets the tilt angle θ of the rotary blade unit 5.
Also, the position of the rotary blade unit 5 in the water side direction and the cutter stroke are locked by an electromagnetic brake inside the servo motor. Such NC control method or PS
By using the C control method, the inclination angle θ of the rotary blade unit 5 with respect to the axis Y, the position of the rotary blade unit 5 (position of the rotary shaft of the cutter), the cutter stroke (cutting depth), etc. can be freely set. Therefore, the long strip can be cut more accurately and easily.

In order to perform the edge treatment of the long strip-shaped material according to the present invention, first, the mounting angle of the rotary blade unit 5 is set to the axis Y.
With respect to the axis Y to form the first inclined surface 2a, and then the mounting angle of the rotary blade unit 5 with respect to the axis Y is adjusted to θ / 2 to form the second inclined surface 2b. To do so. Alternatively, the order is reversed and the second inclined surface 2
The first inclined surface 2a may be formed after forming b.

In the above-mentioned embodiment, the long strip-shaped member is described with two inclined surfaces formed at the end, but the present invention is not limited to this embodiment, and for example, at the end. A long strip-shaped material having three or more inclined surfaces is also included in the scope of the present invention. Also, the inclination angle of each inclined surface with respect to the inner surface of the long strip-shaped material, as long as it is configured so that the inclination angle becomes larger as the inclined surface located on the tip side of the end of the long strip-shaped material, It is not limited to numerical values.

As described above, the long strip-shaped material of the present invention is provided with a plurality of inclined surfaces extending in the lateral direction of the long strip-shaped material and forming an acute angle with the inner surface at the end portion. ,
The included angle of the corner portion in contact with the inner surface of the long strip-shaped material wound thereon is further widened. For this reason, the corner portion becomes gentle and does not bite into the inner surface of the long strip-shaped material to be wound up, so that the inner surface of the long strip-shaped material to be wound up is not damaged by the corner portion. Therefore, when the user uses the long strip,
It is possible to effectively use the part that was conventionally cut off due to a scratch. The user can efficiently use the long strip-shaped material, and eventually save resources.

[Brief description of drawings]

FIG. 1 is a side view showing a shape of a tip portion of an embodiment of a long strip-shaped material of the present invention.

FIG. 2 is a side view showing a shape of a tip portion of a conventional long strip-shaped material.

[Explanation of symbols]

 1 Long strip end 2a, 2b Cutting surface 3a Outer surface 3b Inner surface 4a, 4b Corner 5 Rotary blade unit S Rotary blade unit Rotation axis Y Vertical axis P NC origin

Claims (1)

[Scope of utility model registration request] 1. A long strip-shaped material having an inclined surface at an end thereof, wherein the end portion extends in the lateral direction of the long strip-shaped material,
It comprises a plurality of inclined surfaces forming an acute angle with respect to the inner surface of the long strip, the inclination angle of these inclined surfaces with respect to the inner surface, the inclined surface located closer to the tip end of the end of the long strip. A long strip-shaped material characterized by being configured to be large.