KR-102963466-B1 - PERFORATED SLIT FORMING APPARATUS

KR102963466B1KR 102963466 B1KR102963466 B1KR 102963466B1KR-102963466-B1

Abstract

(assignment) Providing a cutting line slit forming machine capable of forming a cutting line slit that does not completely divide multiple molded products. (Means of solution) The device is equipped with an upper rotating blade section (41) having an upper rotating shaft (43) and an upper rotating blade (44) attached thereto, a lower rotating blade section (42) having a lower rotating shaft (46) and a lower rotating blade (47) attached thereto, a servo motor (45 (48)), and an operation control section (200). At least one of the upper rotating blade (44) and the lower rotating blade (47) has at least one concave portion (44D (47D)) arranged on the outer circumference edge. The servo motor (45 (48)) is connected to the upper rotating shaft (43) and the lower rotating shaft (46) where the concave portion (44D (47D)) is arranged. By passing the metal strip-shaped body (81) through the upper rotating blade (44) and the lower rotating blade (47) while inserting it in the direction of the plate thickness, a cut line is formed on the metal strip-shaped body (81). It is a cutting line slit forming machine (40) that forms a slit (90).

Inventors

타카하시 히로키

Assignees

히다카 세이키 가부시키가이샤

Dates

Publication Date: 20260512
Application Date: 20241029
Priority Date: 20231108

Claims (10)

A cutting line slit forming machine arranged and installed on the conveying path of a metal strip-shaped body to form a cutting line slit in the metal strip-shaped body to facilitate dividing the metal strip-shaped body, which is formed into a predetermined shape by a press forming section, into product widths, An upper rotating blade portion having an upper rotating shaft that extends in the width direction of the metal strip-shaped body on the upper surface side of the metal strip-shaped body, and an upper rotating blade attached to the upper rotating shaft and rotating together with the upper rotating shaft, A lower rotating blade portion having a lower rotating shaft that extends in the width direction of the metal strip-shaped body on the lower side of the metal strip-shaped body, and a lower rotating blade attached to the lower rotating shaft and rotating together with the lower rotating shaft, A positioning control motor connected to at least one of the upper rotation axis and the lower rotation axis, and The above positioning control motor is equipped with an operation control unit that controls the operation of the positioning control motor, and At least one of the upper rotating blade and the lower rotating blade has at least one concave portion arranged and installed inwardly in the diameter direction within the required length range in the circumferential direction at the outer circumferential edge, and The above positioning control motor is connected to the upper rotating shaft to which the upper rotating blade having the concave portion is attached and the lower rotating shaft to which the lower rotating blade having the concave portion is attached, and A cutting line slit forming machine characterized by forming the cutting line slit in the metal strip-shaped body by inserting the metal strip-shaped body in the plate thickness direction by means of the upper rotating blade and the lower rotating blade, and passing the metal strip-shaped body between the upper rotating blade and the lower rotating blade.
In claim 1, the upper rotation axis and the lower rotation axis are arranged and installed between the buffer part of the metal strip-shaped body, which is arranged and installed on the discharge side of the press forming part, and the cut-off machine that cuts the metal strip-shaped body to a preset product length. The above operation control unit is, A cutting line slit forming machine characterized by controlling the operation of the conveying device and the positioning control motor, respectively, so that at least one of the following coincides: the discharge length of the metal strip-shaped body by the conveying device of the metal strip-shaped body in the above-described cut-off machine, the rotational circumference length in the upper rotating blade by the positioning control motor, and the rotational circumference length in the lower rotating blade by the positioning control motor.
In claim 1, the concave portion is arranged and installed as an upper concave portion on the upper rotating blade, and the concave portion is arranged and installed as a lower concave portion on the lower rotating blade. A cutting line slit forming machine characterized by the above-described operation control unit controlling the operation of each of the positioning control motors connected to the upper rotation shaft and the lower rotation shaft so that the metal strip-shaped body is inserted in the plate thickness direction in the order of formation along the circumferential direction of the upper concave part relative to the center point of the upper rotating blade and the lower concave part relative to the center point of the lower rotating blade, according to the arrangement installation angle interval in the circumferential direction of the upper concave part and the arrangement installation angle interval in the circumferential direction of the lower concave part.
In claim 1 or 2, a driving force transmission mechanism is attached to the upper rotating shaft and the lower rotating shaft, respectively, and The above positioning control motor is connected to either the upper rotation axis or the lower rotation axis, and A cutting line slit forming machine characterized in that the lower rotating shaft or the upper rotating shaft is driven by the upper rotating shaft or the lower rotating shaft through the above driving force transmission mechanism.
A cutting line slit forming machine according to claim 3, characterized in that the upper rotating blade and the lower rotating blade are positioned such that the upper concave part and the lower concave part are positioned to insert the metal strip-shaped body while the upper concave part and the lower concave part are facing each other.
A cutting line slit forming device according to claim 3, characterized in that the upper concave portion and the lower concave portion are out of phase by a required length in the circumferential direction, and a part of the opening of the upper concave portion and a part of the opening of the lower concave portion are in a state of facing each other.
In paragraph 3, the upper rotation axis and the lower rotation axis are arranged and installed between the buffer part of the metal strip-shaped body, which is arranged and installed on the discharge side of the press forming part, and the cut-off machine that cuts the metal strip-shaped body to a preset product length. The above operation control unit is, A cutting line slit forming machine characterized by operating the positioning control motor to perform a process of returning the position of the concave portion of the metal strip shape to an initial position while the delivery of the metal strip shape by the conveying device of the cut-off machine is stopped at the timing when the metal strip shape is cut to the product length by the cut-off machine.
In paragraph 4, the upper rotation axis and the lower rotation axis are arranged and installed between the buffer part of the metal strip-shaped body, which is arranged and installed on the discharge side of the press forming part, and the cut-off machine that cuts the metal strip-shaped body to a preset product length. The above operation control unit is, A cutting line slit forming machine characterized by operating the positioning control motor to perform a process of returning the position of the concave portion of the metal strip shape to an initial position while the delivery of the metal strip shape by the conveying device of the cut-off machine is stopped at the timing when the metal strip shape is cut to the product length by the cut-off machine.
In claim 5, the upper rotation axis and the lower rotation axis are arranged and installed between the buffer part of the metal strip-shaped body, which is arranged and installed on the discharge side of the press forming part, and the cut-off machine that cuts the metal strip-shaped body to a preset product length. The above operation control unit is, A cutting line slit forming machine characterized by operating the positioning control motor to perform a process of returning the position of the concave portion of the metal strip shape to an initial position while the delivery of the metal strip shape by the conveying device of the cut-off machine is stopped at the timing when the metal strip shape is cut to the product length by the cut-off machine.
In claim 6, the upper rotation axis and the lower rotation axis are arranged and installed between the buffer part of the metal strip-shaped body, which is arranged and installed on the discharge side of the press forming part, and the cut-off machine that cuts the metal strip-shaped body to a preset product length. The above operation control unit is, A cutting line slit forming machine characterized by operating the positioning control motor to perform a process of returning the position of the concave portion of the metal strip shape to an initial position while the delivery of the metal strip shape by the conveying device of the cut-off machine is stopped at the timing when the metal strip shape is cut to the product length by the cut-off machine.

Description

Perforated Slit Forming Apparatus The present invention relates to a cutting line slit forming machine. A slit device is known for forming a slit to divide a continuous body formed in a state where multiple products are arranged in a transverse direction. Examples of such a slit device include the configuration disclosed in Patent Document 1 (Japanese Patent Publication No. Hei 5-77195) and Patent Document 2 (Japanese Patent Publication No. 6811579). FIG. 1 is a schematic diagram of a heat exchange fin manufacturing apparatus having a cutting line slit forming device according to the present invention. Figure 2 is a plan view of a heat exchange fin. Figure 3 is a plan view showing a portion of the metal strip shape. FIG. 4 is a plan view showing a portion of a metal strip-shaped body with a dotted line. Figure 5 is a plan view of a portion of the width direction of the product length metal strip shape. FIG. 6 is a perspective view taken from the press forming part side of the cutting line slit forming machine in the present embodiment. FIG. 7 is a perspective view taken from the cut-off side of the cutting line slit forming device in the present embodiment. FIG. 8 is a schematic diagram of the cutting line slit forming machine in the present embodiment. FIG. 9 is a side view of the upper rotating blade and the lower rotating blade in the present embodiment. FIG. 10 is an explanatory diagram showing a state in which a phase misalignment occurs between the upper rotating blade and the lower rotating blade's concave groove. FIG. 11 is a side view of the upper rotating blade and the lower rotating blade in the first modified embodiment. FIG. 12 is a schematic diagram of a cutting line slit forming machine in a first modified embodiment. FIG. 13 is a side view of the upper rotating blade and the lower rotating blade in the second modified embodiment. FIG. 14 is a side view of the upper rotating blade and the lower rotating blade in the third modified embodiment. FIG. 15 is a side view of the upper rotating blade and the lower rotating blade in the fourth modified embodiment. FIG. 16 is a side view of the upper rotating blade and the lower rotating blade in the fifth modified embodiment. In this embodiment, a heat exchange fin manufacturing device (100) to which the present invention is applied is described. As shown in FIG. 1, the heat exchange fin manufacturing device (100) in this embodiment comprises an uncoiler (10), a press forming unit (20), a buffer unit (30), a cutting line slit forming unit (40), a cut-off unit (50), a suction unit (60), a stack unit (70), and an operation control unit (200). In addition, the operation control unit (200) controls the operation of the uncoiler (10), the press forming unit (20), the cutting line slit forming unit (40), the cut-off unit (50), and the suction unit (60), and may adopt a known configuration having an operation control program stored in a memory unit not shown and a computation unit represented by a CPU that operates based on the operation control program. The uncoiler (10) is unwound from a coil (11) wound on a bobbin not shown, where the aluminum sheet (80), which is the material for the heat exchange fin (88), is unwound, and a known configuration may be adopted. The press forming section (20) has a lubrication section (21), a press mold (22), a press mechanism (23), and a hitch transfer mechanism (24). The aluminum sheet (80), to which processing oil is applied by the lubrication section (21), is processed into a metal strip-shaped body (81) of a predetermined shape by the press mold (22), which is contacted and separated by the press mechanism (23). The metal strip-shaped body (81) is intermittently discharged from the press forming section (20) by the hitch transfer mechanism (24) in synchronization with the operation of the press mechanism (23). In this embodiment, the buffer section (30) is a space that keeps the metal strip-shaped body (81) ejected from the press forming section (20) in a loose downward state, and buffers the difference between the forming length and cutting length per pass by the press forming section (20) and the cut-off device (50) described later. The buffer section (30) may also be configured by means of inducing the metal strip-shaped body (81) into a predetermined loose shape. The cutting line slit forming machine (40) forms a cutting line slit (90) to facilitate the division of a metal strip-shaped body (81), which is formed as a long body having multiple rows of heat exchange fins (88), the final product shown in FIG. 2, in the width direction (a direction orthogonal within the same plane as the delivery direction), into product widths. FIG. 3 is a plan view showing a portion of the length direction of the metal strip-shaped body (81). At least one cutting line slit (90) is formed in the product width direction with respect to the metal strip-shaped body (81), and a cutting line (91), which is a cutting portion, and a connect