CN108723179B - Molding machine and method for replacing mandrel - Google Patents

Molding machine and method for replacing mandrel Download PDF

Info

Publication number
CN108723179B
CN108723179B CN201710272456.7A CN201710272456A CN108723179B CN 108723179 B CN108723179 B CN 108723179B CN 201710272456 A CN201710272456 A CN 201710272456A CN 108723179 B CN108723179 B CN 108723179B
Authority
CN
China
Prior art keywords
mandrel
metal
molding machine
support
rotation
Prior art date
Application number
CN201710272456.7A
Other languages
Chinese (zh)
Other versions
CN108723179A (en
Inventor
上乐孝夫
Original Assignee
Ykk株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ykk株式会社 filed Critical Ykk株式会社
Priority to CN201710272456.7A priority Critical patent/CN108723179B/en
Publication of CN108723179A publication Critical patent/CN108723179A/en
Application granted granted Critical
Publication of CN108723179B publication Critical patent/CN108723179B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/46Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples
    • B21D53/50Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples metal slide-fastener parts
    • B21D53/56Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples metal slide-fastener parts stops

Abstract

The invention provides a molding machine, which can make the detachment of a mandrel from the molding machine easier. The molding machine (92) includes a mandrel (110) extending in the axial direction, and a mandrel support portion (120) that supports the mandrel (110) inserted or disposed in a space extending in the axial direction. The mandrel (110) has an engaging portion (115), and the engaging portion (115) engages with an engaged portion (135) of a transmission member (60) for transmitting power for moving the mandrel (110) in the axial direction to the mandrel (110). The spindle support (120) is provided so as to be rotatable about a rotation axis (AX 120). The engagement portion (115) is provided at a position radially outward away from the rotation axis (AX120) of the mandrel support portion (120).

Description

Molding machine and method for replacing mandrel

Technical Field

The invention relates to a forming machine and a mandrel replacing method.

Background

Patent document 1 discloses a molding machine for a stop pawl member of a slider for a slide fastener.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2015/128996

Disclosure of Invention

During the continuous forming of the metal material in the forming machine, the mandrel is continuously subjected to more or less blows from the punch. The mandrel may be periodically inspected and/or replaced during use of the molding machine. It is desirable to facilitate removal of the mandrel from the molding machine.

A molding machine according to an aspect of the present invention includes: a core shaft extending in an axial direction and having an engaging portion that engages with an engaged portion of a transmission member for transmitting power for causing the core shaft to move in the axial direction to the core shaft; and

a mandrel support portion that supports the mandrel inserted or disposed in the space extending in the axial direction,

the spindle support portion is provided so as to be rotatable about a rotation axis,

the engaging portion is provided at a position radially outward from the rotation axis of the mandrel support portion.

In some embodiments, the mandrel support portion is a cylindrical member extending in the axial direction.

In some embodiments, the engaging portion is a recess provided in a side surface of the mandrel.

In some embodiments, the mandrel has a first end portion to which the metal material is supplied and a second end portion opposite to the first end portion in the axial direction,

the clamping part is arranged close to the second end part.

In some embodiments, the core shaft support portion may be rotatably held by a structure.

In some embodiments, the metal material may further include one or more punches provided on an outer periphery of the mandrel and configured to operate to form one or more bent portions in the metal material in cooperation with an outer peripheral surface of the mandrel.

In some embodiments, the molding machine further includes a rotation prevention member for preventing the rotation of the mandrel support portion.

In some embodiments, the structure includes a rotation prevention member for preventing rotation of the spindle support portion.

One aspect of the present invention relates to a method for replacing a mandrel, including:

a step of rotating a mandrel supporting portion that supports the mandrel around a rotation axis; and

and releasing the engagement between the transmission member for transmitting power to the spindle and the spindle based on the rotation of the spindle corresponding to the rotation of the spindle support.

In some embodiments, the core shaft includes an engaging portion that engages with the transmission member, and the engaging portion is provided at a position that is radially outward away from the rotation axis of the core shaft support portion.

Effects of the invention

According to an aspect of the present invention, the mandrel can be easily removed from the molding machine.

Drawings

Fig. 1 is a schematic diagram of a system including a forming machine according to an aspect of the present invention, in which a metal material that is a flat metal plate is punched on both sides in a width direction thereof in an upstream press machine, and the metal material that is the flat metal plate is formed and cut in a downstream forming machine, and as a result, a stopper claw member is manufactured as a metal sheet. The stop pawl member can be assembled into the slider body by any of various methods.

Fig. 2 is a schematic side view of a stopper claw member as an example of a metal sheet molded by a molding machine according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a stopper claw member as an unlimited semi-finished product in a process of molding by the molding machine according to an embodiment of the present invention.

Fig. 4 is a schematic process diagram showing how a metal material is formed by a forming machine according to an embodiment of the present invention. In fig. 4(a), the narrow portion of the metal material is bent to be small, and a U-shaped bent portion having a small bending width is formed. The wide width portion is bent to a small width to form an arc-shaped bent portion. In fig. 4(b), an arc-shaped bent portion is formed in the wide width portion of the metal material, and a terminal bent portion is formed in the vicinity of the end portion of the metal material. In fig. 4(c), the metal material is cut at the boundary of the unit length of the metal material. In fig. 4(d), a terminal bent portion is formed near the end of the metal material cut at the time of the present forming. In fig. 4(e), the degree of bending of the U-shaped bent portion having a smaller bending width that has been formed previously is increased, with the result that the U-shaped bent portion having a larger bending width is formed.

Fig. 5 is a schematic diagram showing a schematic configuration of a molding machine according to an embodiment of the present invention, and schematically shows a plurality of punches, one cutter, and a metal material supply member arranged on an outer periphery of a mandrel.

Fig. 6 is a schematic diagram showing a schematic configuration of a molding machine according to an embodiment of the present invention, schematically showing that a mandrel is supported by a mandrel support portion, and the mandrel support portion is rotatably provided in a structure.

Fig. 7 is a schematic perspective view of a mandrel of a molding machine according to an embodiment of the present invention, showing that an engaging portion is provided near a second end opposite to a first end to which a metal material is supplied.

Fig. 8 is a schematic view showing engagement between a mandrel and a transmission member of a molding machine according to an embodiment of the present invention.

Fig. 9 is a schematic view showing engagement between a mandrel and a transmission member of a molding machine according to an embodiment of the present invention.

Fig. 10 is a schematic perspective view of a first end portion of a mandrel to which a metal material is supplied according to an embodiment of the present invention, schematically showing a mandrel protrusion protruding from an end surface.

Fig. 11 is a schematic view showing the operation of the molding machine according to one embodiment of the present invention, and schematically shows the formation of a U-shaped bent portion and an arc-shaped bent portion having a small bending width by the cooperation of the mandrel and the first punch.

Fig. 12 is a schematic view showing a U-shaped bent portion having a small bending width formed in a metal material by the operation of fig. 11 of the molding machine.

Fig. 13 is a schematic view showing the operation of the molding machine according to one embodiment of the present invention, schematically showing the formation of the arc-shaped bent portion and the end bent portion by the cooperation of the mandrel and the first and second punches.

Fig. 14 is a schematic view showing an arc-shaped bent portion and a terminal bent portion formed in a metal material by the operation of fig. 13 of the molding machine.

Fig. 15 is a schematic view showing the operation of the molding machine according to one embodiment of the present invention, and schematically shows the cutting of the metal material by the operation of the cutter.

Fig. 16 is a schematic view showing the metal material being cut by the operation of fig. 15 of the molding machine.

Fig. 17 is a schematic view showing the operation of the molding machine according to one aspect of the present invention, schematically showing the formation of the end bend by the cooperation of the mandrel and the first and third punches.

Fig. 18 is a schematic view showing a terminal bent portion formed in the metal material by the operation of fig. 17 of the molding machine.

Fig. 19 is a schematic view showing the operation of the molding machine according to one aspect of the present invention, and schematically shows the formation of a U-shaped bent portion having a large bending width by the cooperation of the mandrel and the first, third, and fourth punches.

Fig. 20 is a schematic view showing a U-shaped bent portion having a large bending width formed in a metal material by the operation of fig. 19 of the molding machine.

Fig. 21 is a schematic view showing that the mandrel is rotated by the rotation of the mandrel support portion in the molding machine.

Fig. 22 is a schematic view showing that the mandrel is rotated by the rotation of the mandrel support portion in the molding machine.

Fig. 23 is a schematic view showing the engagement of the mandrel with the transmission member in the molding machine.

Fig. 24 is a schematic view showing that the engagement between the mandrel and the transmission member is released in the molding machine.

Fig. 25 is a schematic view showing that the mandrel is detached from the mandrel support portion in the molding machine.

Description of the reference numerals

60 transfer member

110 mandrel

115 engaging part

120 mandrel support

AX120 rotating shaft

Detailed Description

Next, non-limiting embodiments of the present invention will be described with reference to fig. 1 to 25. The above embodiments of the invention and the features included in the embodiments are not independent of each other. Those skilled in the art will be able to combine embodiments and/or features without undue experimentation. Furthermore, the person skilled in the art will also be able to understand the synergistic effect obtained by this combination. The overlapping description between the embodiments is omitted in principle. The drawings are mainly for illustrating the invention and may be simplified for convenience of drawing.

Next, a molding machine and a molding method of a metal material will be described as a non-limiting example. Further, a method of manufacturing a stop pawl member of a slider for a slide fastener, which is one non-limiting example of a metal piece manufactured by a molding machine, will be described. The metal sheet manufactured by the molding machine is not limited to a finished product, and may be a semi-finished product processed by another manufacturing apparatus. The metal material formed by the forming machine may be composed of various metals or metal alloys. Examples of the metal material or metal alloy include stainless steel (SUS), aluminum, iron, zinc, and copper-zinc alloy.

In some cases, the metal material exhibits elasticity after being formed by a forming machine, but is not limited thereto. Additionally or alternatively, the metal material may be in any form (any cross-sectional shape and/or thickness) such as a metal wire, a metal foil, a metal plate, or the like. Additionally or alternatively, the cross-sectional shape of the metal material may be circular, triangular, rectangular, or other polygonal shape. Additionally or alternatively, the metal material may be a long strip, and cut and formed into a sheet by a forming machine.

The metal sheet obtained from the metal material may be various members according to the embodiment. For example, the metal sheet may be a mechanical component, an electrical component, a decorative component, or other types of components. As the mechanical component, the stopper claw member of the slider for a slide fastener is exemplified as described above, but the mechanical component is not limited thereto, and may be a structural component (for example, various metal frames) of various moving bodies such as an airplane, a motorcycle, a tricycle, a bicycle, a boat, and a submarine, a structural component of various manufacturing apparatuses, a toy such as a doll, and other kinds of articles. The electric component may be, for example, various terminal components such as a connection terminal and an electrode terminal, or other wiring components.

For convenience of explanation, a non-limiting example of manufacturing the stop pawl member of the slider for a slide fastener by forming and cutting a metal material as a metal plate material by a forming machine will be described below. The metal material is long and is fed downstream from a roll not shown. The metal material has ductility and ductility, and is bent along the outer peripheral surface of the mandrel by molding with a molding machine provided on the downstream side of the mandrel. The metal material returns to the original shape but retains the bent shape. The metal material is cut by a cutter incorporated in a molding machine or other device to obtain a metal sheet. The stop pawl member of the slider for slide fastener is not limited to the shape illustrated in the drawings, and various other shapes can be adopted. The outer peripheral surface of the mandrel and the punch surface of the punch can be designed as desired by those skilled in the art according to the desired shape of the stop pawl member.

Fig. 1 is a diagrammatic view of a system 99 including the molding machine 92 of the present invention. In the upstream press 91, the metal material 80, which is a flat metal plate, is punched on both sides in the width direction thereof. The metal material 80, which is a flat metal plate, is formed and cut by the forming machine 92 on the downstream side. As a result, the stop claw member 70 is manufactured as a metal sheet. The stopping pawl member 70 can be assembled into the slider body by any of various methods.

The metal material 80 fed from a roll (not shown) is subjected to shearing processing by a punch 91. The press 91 punches the metal material 80 with one or more punches. The punch 91 includes one or more dies and one or more punches. The die or punch is appropriately given a shape to cut and process the metal material 80 into a desired shape. In some cases including the illustrated example, the concave portions are formed on both sides in the width direction of the metal material 80 by the punch 91. The recesses may be provided in the same manner on both sides in the width direction of the metal material 80. The width direction of the metal material 80 is orthogonal to the longitudinal direction and the thickness direction of the metal material 80. The longitudinal direction of the metal material 80 coincides with the direction in which the metal material 80 flows from the press 91 to the molding machine 92. The thickness direction of the metal material 80 may be a direction orthogonal to a pair of flat surfaces of the metal material 80.

As shown in fig. 1, the metal material 80 supplied from the press 91 to the molding machine 92 is formed by connecting profile members (japanese: パターン) each having a unit length 80U. In the unit length 80U, the metal member 80 includes an upstream end 81, a downstream end 82, a narrow portion 83 between the upstream end 81 and the downstream end 82, a wide portion 84 between the upstream end 81 and the narrow portion 83, and a wide portion 85 between the downstream end 82 and the narrow portion 83. The wide width portion 84 is located on the upstream side of the wide width portion 85. As described above, there are various examples of the shape of the metal piece obtained from the metal material 80, even if limited to the stop pawl member of the slider for a slide fastener. Therefore, the description in this paragraph can be understood as a method of shearing the metal material 80 by the punch 91 in a manner suitable for manufacturing the stopper claw member as a certain non-limiting example. Obviously, it is contemplated that the metal material 80 is shear-worked into other shapes by the punch 91. The end portions 81 and 82 are narrower than the wide portions 84 and 85, similarly to the narrow portion 83. The upstream end 81 and the downstream end 82 may be referred to as a first end and a second end, respectively. The wide portions 84 and 85 may be referred to as first and second wide portions, respectively.

The metal sheet, i.e., the stopper claw member 70 in the illustrated example, is continuously discharged from the metal material 80 by molding and cutting by a molding machine 92, which will be described later in detail. The end 82 included in the portion of the unit length 80U at the time of molding the portion of the unit length 80U at this time by the molding machine 92 is a free end generated by cutting the metal material 80 in the process of molding the portion of the unit length 80U at the previous time by the molding machine 92. When the molding machine 92 starts molding the part of the unit length 80U of this time, the end 81 included in the unit length 80U is connected to the end 82 of the unit length 80U on one upstream side. At the time of this molding, the molding machine 92 cuts the connected end portions 81 and 82, whereby the end portions 81 and 82 become free end portions. At the same time, a metal piece corresponding to or identical to the portion of the unit length 80U to be molded this time is cut out from the metal material 80 by the molding machine 92. Another example of cutting the metal material 80 by a device different from the molding machine 92 is also conceivable.

Fig. 2 is a schematic side view of the stop pawl member 70 as one example of the metal sheet molded by the molding machine 92. Fig. 3 is a schematic perspective view of the stopper claw member 70 as an unlimited semi-finished product in the process of molding by the molding machine 92. As is apparent from fig. 2 and 3, the end bend 86 is formed between the end portion 81 and the wide portion 84, the end bend 87 is formed between the end portion 82 and the wide portion 85, and the U-shaped bend 88 is formed in the narrow portion 83 by molding using a molding machine 92. By the molding machine 92, the arcuate bent portion 89m is further formed in the wide width portion 85, and the arcuate bent portion 89n is further formed in the wide width portion 84. The direction of conveyance of the metal material 80 as the base material cannot be recognized from the stopper claw member 70 itself. However, the end bend 86 is located upstream of the end bend 87 in the conveying direction of the metal material 80 described with reference to fig. 1. The arcuate bend 89m is located on the downstream side of the arcuate bend 89 n. The end portions 81 and 82 and the narrow portion 83 are relatively narrow in width, and the bent portions 86, 87, and 88 are easily formed in the metal member 80. In some cases including the illustrated example, the metal material 80 may have one or more narrow width portions in order to form one or more bent portions. The number, position, and length of the narrow portions may be changed according to the embodiment.

Fig. 4 is a schematic process diagram showing how the metal material 80 is molded by the molding machine 92. In fig. 4(a), the narrow portion 83 of the metal material 80 is bent to a small extent, and a U-shaped bent portion 88 having a small bending extent is formed in the narrow portion 83. The wide portion 84 is bent to a small width, and an arc-shaped bent portion 89n is formed in the wide portion 84. In fig. 4(b), an arc-shaped bent portion 89m is formed in the wide portion 85 of the metal member 80, and a terminal bent portion 87 is formed in the vicinity of the end portion 82 of the metal member 80. In fig. 4(c), the metal member 80 is cut at the boundary of the unit length 80U of the metal member 80. In fig. 4(d), a terminal bent portion 86 is formed near the end portion 81 of the metal material 80 cut at the time of the present forming. In fig. 4(e), the degree of bending of the U-shaped bent portion 88 having a smaller bending width that has been formed previously is increased, with the result that the U-shaped bent portion 88 having a larger bending width is formed. When the stopper claw member 70 is discharged from the molding machine 92, the stopper claw member 70 is deformed from the shape shown in fig. 4(e) by its elasticity, and the gap between the arc-shaped bent portion 89m and the arc-shaped bent portion 89n can be increased.

Fig. 5 and 6 are schematic diagrams showing a schematic configuration of the molding machine 92. The molding machine 92 includes a mandrel 110, a mandrel support 120, a punch 130, a cutter 140, a supply member 150, a guide cylinder 160, a controller 170, a drive source 174, and a structure 190. As can be seen from fig. 5 and 6, the mandrel holder 120, the punch 130, the cutter 140, the supply member 150, and the like are attached to the structure 190. A plurality of punches 130, one cutter 140, and a metal material supply member 150 are disposed on the outer periphery of the mandrel 110. In some cases, the mandrel 110, punch 130, and cutter 140 of the forming machine 92 are movable components. In some cases, a plurality of drive sources 174 whose number is equal to or less than the total number of movable members is provided. In fig. 4 and 5, a power transmission mechanism that can be provided between the drive source 174 and the movable member is not illustrated.

The spindle 110 extends in the axial direction and is movable in the axial direction. The mandrel 110 has first and second ends 110m, 110n in the axial direction. The metal material 80 is supplied to the first end 110m of the mandrel 110. The mandrel 110 is relatively movable with respect to the mandrel support portion 120, and can be positioned so as to protrude from the mandrel support portion 120. The mandrel 110 has one or more mandrel protrusions 30 extending in the axial direction, but is not limited thereto. In some cases, including the illustrated example, the mandrel 110 is a cylindrical member, such as a metallic cylindrical member. The axial direction in which the mandrel protrusion 30 extends can coincide with the longitudinal direction of the mandrel 110. The mandrel 110 has an outer peripheral surface suitable for forming one or more bent portions in the metal material 80 by the cooperation of the mandrel 110 and the punch 130.

Fig. 7 is a schematic perspective view of the mandrel 110 of the molding machine 92. In some cases, including the illustrated example, the mandrel 110 is coupled to the transfer member 60. The transmission member 60 for transmitting power for moving the spindle 110 in the axial direction has an engaged portion 135. The core 110 has an engaging portion 115 that engages with the engaged portion 135 of the transmission member 60. The engaging portion 115 may be a concave portion or a convex portion, and in the illustrated example, is a concave portion. The engaging portion 115 may be a recess provided on a side surface of the mandrel 110. The engaging portion 115 may be provided near a second end 110n of the mandrel 110 to which the metal material is supplied, the second end being opposite to the first end 110 m.

Fig. 8 and 9 are schematic views showing engagement between the mandrel 110 and the transmission member 60 of the molding machine according to one embodiment of the present invention. As shown in fig. 8 and 9, the engaging portion 115 engages with the engaged portion 135 at the end of the transmission member 60 near the second end 110n of the mandrel 110. The transmission member 60 is movable in the axial direction by power from a drive source 174, not shown. In response to the axial movement of the transmission member 60, the mandrel 110 also moves in the axial direction. Thereby, the position of the mandrel 110 with respect to the mandrel support 120 is adjusted. The engaged portion 135 may be a concave portion or a convex portion, and in the illustrated example, is a convex portion. The mandrel 110 is coupled to the transmission member 60, and the transmission member 60 is reciprocated in the axial direction, whereby the mandrel 110 and the transmission member 60 are reciprocated together, and the mandrel 110 is reciprocated in a space extending in the axial direction of the mandrel support portion 120. The transmission member 60 may also be referred to as a mechanical link.

The mandrel support portion 120 supports the mandrel 110 inserted or disposed in a space extending in the axial direction. The spindle support portion 120 is provided rotatably around a rotation axis AX120 (see fig. 23 to 25). In some cases including the illustrated example, the mandrel support 120 is rotatable about a rotation axis AX120 (see fig. 23 to 25) in a state of being attached to the structure 190. The cross-sectional shape of the mandrel 110 in a plane orthogonal to the axial direction is non-perfect circular. On the other hand, the cross-sectional shape of the mandrel support portion 120 on one plane orthogonal to the axial direction is a perfect circle. When the spindle support portion 120 rotates in a state of being attached to the structure 190, the spindle 110 also rotates with respect to the structure 190.

The mandrel support portion 120 is a cylindrical member extending in the axial direction in some cases, and is a metallic cylindrical member in some cases. In some cases, the contour of the inner circumferential surface of the mandrel support 120 for delimiting the space is similar to the contour of the outer circumferential surface of the mandrel 110 when viewed from the axial direction of the mandrel 110. The contour of the inner circumferential surface of the mandrel support 120 defining the space is slightly larger than the contour of the outer circumferential surface of the mandrel 110 so as to allow axial movement of the mandrel 110.

In some cases, the molding machine 92, more specifically, the structure 190, is provided with a rotation prevention member 199 for preventing the rotation of the mandrel support portion 120. The rotation preventing member 199 prevents the spindle support portion 120 from rotating about the rotation axis AX120 (refer to fig. 23 to 25) of the spindle support portion 120. The rotation preventing member 199 is movable in a direction orthogonal to the rotation axis AX with respect to the spindle support portion 120, and is movable between a first position and a second position. When the anti-rotation member 199 is in the first position, the spindle support 120 is prevented from rotating by the anti-rotation member 199. When the rotation prevention member 199 is in the second position, the rotation prevention member 199 is released from preventing the spindle support 120 from rotating.

In some cases, rotation of the spindle support 120 is prevented by contact and/or engagement and/or snap-fit of the anti-rotation member 199 with the spindle support 120. That is, if the anti-rotation member 199 is sufficiently distant from the spindle support portion 120, the spindle support portion 120 is allowed to rotate. While the metal material 80 is being formed by the punch 130 on the mandrel 110 supported by the mandrel support portion 120, the rotation of the mandrel support portion 120 is prevented by the rotation preventing member 199. When the engagement of the spindle 110 with the transmission member 60 is to be released, the rotation of the spindle support portion 120 is prevented by the rotation preventing member 199. Additionally, in some cases, the anti-rotation component 199 is a block metal.

The movement of the anti-rotation member 199 relative to the spindle support 120 can be achieved in various ways. In some cases, as the bolt rotates, the anti-rotation member 199 correspondingly moves toward the spindle support 120. As the bolt counter-rotates, the anti-rotation member 199 correspondingly moves away from the spindle support 120. Various forms are conceivable, such as a form in which a force to urge the rotation prevention member 199 toward the first position is applied by a spring, and a form in which the rotation prevention member 199 is coupled to a nut portion of the ball screw.

The specific manner of contact, engagement, or engagement of the spindle support 120 with the anti-rotation member 199 is various. A protrusion, a recess, or a combination thereof may be provided on the outer circumference of the mandrel support portion 120. In some cases including the illustrated example, a recess 121 is formed on the outer peripheral surface of the spindle support portion 120, and the rotation preventing member 199 is fitted in the recess 121. The recess 121 may have a flat surface provided on the outer peripheral surface of the cylindrical mandrel holder 120 as a bottom surface of the recess 121. The rotation preventing member 199 may be in surface contact with a flat surface of the recess 121 as a bottom surface. When the flat surface of the recess 121, which is a bottom surface, comes into surface contact with the rotation prevention member 199, the rotation of the spindle support portion 120 is prevented by the rotation prevention member 199. The rotation preventing member 199 can be attached to the structure 190 so as not to rotate around the rotation axis AX 120. The structure 190 has a movement path for the rotation preventing member 199 extending in a direction orthogonal to the rotation axis AX 120. The following forms are also conceivable: one or more projections are provided on the outer peripheral surface of the spindle support portion 120 that supports the spindle 110, and the projections are in contact with, fitted into, and/or engaged with the rotation preventing member 199.

The punch 130 is provided on the outer periphery of the mandrel 110, and operates to form one or more bent portions in the metal material 80 in cooperation with the outer peripheral surface of the mandrel 110. The punch 130 moves toward the mandrel 110, and presses the metal material 80 disposed on the outer peripheral surface of the mandrel 110. The metal material 80 is pressed between the punch 130 and the mandrel 110, whereby the metal material 80 is molded into a shape corresponding to the outer peripheral surface of the mandrel 110 and/or the punching surface of the punch 130. As a result, one or more bent portions are formed in the metal material 80. The bent portion may be a portion bent at any angle other than 180 degrees. The bent portion may include various bent shapes such as a V shape, a U shape, a C shape, a low ridge shape, and a steep ridge shape. In some cases including the illustrated example, the punching face of the punch 130 may be an end face of the punch 130 on the side of the mandrel 110, i.e., a face opposite to the mandrel 110.

In some cases including the illustrated example, the punch 130 moves toward the mandrel 110 while being guided by the guide cylinder 160. The punch 130 is moved closer to the mandrel 110 or away from the mandrel 110 by power supplied from a driving source 174 such as a motor via a power transmission mechanism, respectively. The motor may be a stepper motor controlled with a pulse signal. The drive source 174 is not limited to a motor, and may be another drive source such as an engine. The power transmission mechanism may be any mechanism that converts the rotational force generated by the drive source 174 into the linear motion of the punch. The power transmission mechanism may include, for example, a combination of a pinion and a rack, a crank mechanism, or any other mechanism. The position where the punch 130 is closest to the mandrel 110 is referred to as a machining position, and the position where the punch 130 is farthest from the mandrel 110 is referred to as a retracted position.

The cutter 140 operates to cut the metal material 80. The cutter 140 reciprocates between the retracted position and the cutting position by power supplied from a drive source 174, for example, a motor, via a power transmission mechanism while being guided by the guide cylinder 160. As described above, the drive source 174 and the power transmission mechanism may take various forms according to the embodiment. When the cutter 140 is at the cutting position, the metal material 80 is cut by the cutting edge 146 of the cutter 140. In some cases, the cutter 140 cuts the metal material 80 at the boundary of the unit length 80U of the metal material 80 as described above.

In some cases, including the illustrated example, the cutter 140 is configured to push a portion of the metal material 80, the end 81 in the illustrated example, on the mandrel 110 when cutting the metal material 80. The portion of metal material 80 on mandrel 110, end 81 in the example shown, is moved away from mandrel 110 by cutter 140. As shown, the end 81 of the metal material 80 may be pushed upward by the cutter 140. The reliability of cutting the metal material 80 can be improved, and the method is also suitable for molding the metal material 80.

The controller 170 executes control for moving each punch 130 disposed on the outer periphery of the mandrel 110, optionally additionally moving the cutter 140 at an appropriate timing. For example, the controller 170 provides instructions to the drive source 174. The drive source 174 generates a predetermined amount of power in accordance with a command from the controller 170. The power generated by the drive source 174 is transmitted to the punch 130 via the power transmission mechanism, and the punch 130 is moved. The cutter 140 is also moved by the power from the drive source 174.

Each punch 130 moves from the retracted position to the machining position at an appropriate timing based on the control of the controller 170. Each punch 130 is moved from the machining position to the retracted position at an appropriate timing under the control of the controller 170. The cutter 140 moves from the retracted position to the cutting position at an appropriate timing based on the control of the controller 170. The cutter 140 moves from the cutting position to the retracted position at an appropriate timing based on the control of the controller 170.

The controller 170 may include a sequencer. The controller 170 may be suitably constructed of hardware, software, or a combination thereof. The hardware may include a CPU, a memory, a bus, an I/O circuit, an interface circuit, an image processing circuit, an image display device, and the like. The software may include one or more programs that can be executed by the CPU.

The supply part 150 includes a first die 151 and a second die 152. The metal material 80 is fed onto the mandrel 110 through a gap between the first die 151 and the second die 152. The metal material 80 is fed from a roll to the downstream side by a conveying unit, not shown, such as a roll-to-roll conveying device.

In some cases, including the illustrated example, more than two punches 130 are provided, and in the illustrated case, four punches 130 are provided. Hereinafter, the punches 130 of the illustrated example may be referred to as first to fourth punches 131 to 134. Another example in which more than two cutters (e.g., a combination of an upper cutter and a lower cutter) are provided is also conceivable.

Fig. 10 is a schematic perspective view of the first end 110m of the mandrel 110 to which the metal material 80 is supplied. The mandrel 110 includes a mandrel main body 10, and a mandrel protrusion 30 protruding in the axial direction from an end surface 10s of the mandrel main body 10. The metal material 80 is disposed on the mandrel body 10 and/or the mandrel protrusion 30. In some cases, including the illustrated example, U-shaped bend 88 is formed in metal stock 80 and one or more end bends 86 are formed at one or more ends 81 of metal stock 80 by the cooperative action of mandrel protrusion 30 and one or more punches 130. The durability of the mandrel protrusions 30 and/or the mandrel member provided with the mandrel protrusions 30 can be improved by securing a sufficient size.

As shown in fig. 10, the mandrel 110 includes a first surface 111, a second surface 112, a third surface 113 connecting the first surface 111 and the second surface 112, and a fourth surface 114 provided on the opposite side of the third surface 113 (the side facing the opposite side from the third surface 113). The wide width portion 84 is formed and/or bent on the first surface 111 of the mandrel 110 by a first punch 131. The wide width portion 85 and the end portion 82 are formed and/or bent on the second surface 112 of the mandrel 110 by a second punch 132. The narrow portion 83 is formed and/or bent on the third surface 113 of the mandrel 110 by the first and fourth punches 131 and 134. On the fourth surface 114 of the mandrel 110, the end portion 81 is shaped and/or bent by a third punch 133. The first, third, and fourth surfaces 111, 113, and 114 are provided on the mandrel protrusion 30. The second face 112 is not provided to the spindle protrusion 30. In other words, the mandrel protrusion 30 has the first, third, and fourth surfaces 111, 113, and 114, and does not have the second surface 112.

The mandrel protrusion 30 has a fifth surface 35 extending so as to intersect or be orthogonal to the end surface 10s of the mandrel main body 10 in the axial direction. The fifth surface 35 has a region extending along the direction in which the punch 130 (the fourth punch 134 in the illustrated example) moves from the retracted position toward the machining position in order to form the U-shaped bent portion 88 having a large bending width. The fifth surface 35 is concave so as not to interfere with the wide portion 85 of the metal member 80 after molding, or to interfere only slightly therewith.

As can be seen in fig. 10, in some cases, mandrel protrusion 30 includes a core 38 for forming a U-shaped bend 88, a wall portion 37 for forming a terminal bend 86, and an intermediate portion 36 connecting core 38 and wall portion 37. In some cases including the illustrated example, the spindle protrusion 30 is provided with a recess recessed upward. In some cases including the drawing example, the first face 111 is an upper face, and the second to fourth faces 112, 113, 114 are side faces.

The following describes the operation of the molding machine 92 as a non-limiting example, with reference to fig. 11 to 20. Fig. 11 is a schematic view showing the operation of the molding machine 92. The U-shaped bent portion 88 and the arcuate bent portion 89n having a small bending width are schematically shown to be formed by the cooperation of the mandrel 110 and the first punch 131. Fig. 12 is a schematic view showing a U-shaped bent portion 88 having a small bending width formed in the metal material 80 by the operation of the molding machine 92 shown in fig. 11.

As is apparent from fig. 11 and 12, the metal material 80 is fed to the mandrel 110 through a gap between the first die 151 and the second die 152 of the feeding member 150. The metal material 80 is supplied to the end of the mandrel 110 protruding from the end surface 120s of the mandrel support 120. The metal material 80 supplied to the mandrel 110 is arranged flat and linearly on the mandrel 110 before being pressed by the first punch 131. The first punch 131 is moved toward the mandrel 110 accordingly by power from a driving source 174 controlled by the controller 170. When the first punch 131 reaches the processing position, the metal material 80 is pressed and bent between the first punch 131 and the mandrel 110, and a U-shaped bent portion 88 having a small bending width is formed in the metal material 80. The punching surface of the first punch 131 is disposed to face the first surface 111 and the third surface 113 of the mandrel 110 when the first punch 131 is located at the machining position. The metal material 80 is bent until the end 82 of the metal material 80 contacts the mandrel 110. When the metal material 80 is supplied onto the mandrel 110, the mandrel 110 protrudes by a length L1 from the end surface 120s of the mandrel support 120. The second to fourth punches 132 to 134 and the cutter 140 are located at the retreat position.

Fig. 13 is a schematic view showing the operation of the molding machine 92, and schematically shows the formation of the arc-shaped bent portion 89m and the end bent portion 87 by the cooperation of the core 110 and the first and second punches 131 and 132. Fig. 14 is a schematic view showing the formation of the arcuate bent portion 89m and the terminal bent portion 87 in the metal material 80 by the operation of the molding machine 92 shown in fig. 13. Following the first punch 131, the second punch 132 is correspondingly moved toward the mandrel 110 by power from a drive source 174 controlled by the controller 170. When the second punch 132 reaches the machining position, the metal material 80 is pressed and bent between the second punch 132 and the core shaft 110, and an arc-shaped bent portion 89m and a terminal bent portion 87 are formed in the metal material 80. The stamping face of the second punch 132 is arranged to oppose the second face 112 of the mandrel 110 when the second punch 132 is in the machining position.

Fig. 15 is a schematic view showing the operation of the molding machine 92, and schematically shows the cutting of the metal material 80 by the operation of the cutter 140. Fig. 16 is a schematic view showing the metal material being cut by the operation of the molding machine 92 shown in fig. 15. After the second punch 132, the cutter 140 is moved in the vertical direction and/or upward by the power from the drive source 174 controlled by the controller 170. When the cutter 140 reaches the cutting position, the metal material 80 is cut at the boundary of the adjacent unit length 80U by the cutter 140. The portion of the metal material 80 located on the downstream side of the cutting position is slightly displaced upward from the mandrel 110 by the cutter 140. The cutter 140 returns to the retracted position after cutting the metal material 80. Further, the second punch 132 also returns to the retracted position.

Fig. 17 is a schematic diagram showing the operation of the molding machine 92, and schematically shows the formation of the bent end portion 86 by the cooperation of the core shaft 110 and the first and third punches 131 and 133. Fig. 18 is a schematic view showing the formation of the terminal bent portion 86 in the metal material 80 by the operation of the forming machine 92 shown in fig. 17. After the cutter 140 cuts the metal material 80, the third punch 133 is moved in the vertical direction and/or downward by the power from the drive source 174 controlled by the controller 170. When the third punch 133 reaches the processing position, the metal material 80 is pressed and bent between the third punch 133 and the mandrel 110, and the end bend 86 is formed in the metal material 80. The third punch 133 has a projection 133f, and the metal member 80 (end 81) is sandwiched between the projection 133f and the fourth surface 114 of the mandrel 110. The punching surface of the third punch 133 is disposed to be opposed to the fourth surface 114 when the third punch 133 is located at the working position. Further, the wide width portion 84 of the metal material 80 is pressed and bent between the third punch 133 and the core 110, and the arcuate bent portion 89n of the wide width portion 84 is further bent.

After the cutter 140 cuts the metal material 80 (in the illustrated example, after the cutter 140 cuts the metal material 80 and the third punch 133 forms and bends the metal material 80), the amount of protrusion of the mandrel 110 from the mandrel support 120 is adjusted. Specifically, the mandrel 110 is moved in the axial direction with respect to the mandrel support portion 120. More specifically, the mandrel 110 is moved in the axial direction by the axial movement of the transmission member 60, thereby adjusting the amount of protrusion of the mandrel 110 from the mandrel support 120. The axial movement of the transmission member 60 can be controlled by the controller 170.

As is apparent from a comparison between fig. 18 and fig. 20, the mandrel 110 shifts from a state in which it protrudes by a length L1 from the end surface 120s of the mandrel support 120 to a state in which it protrudes by a length L2 from the end surface 120s of the mandrel support 120. In response to this, the metal material 80 on the mandrel 110 (which may also be referred to as a metal piece cut out from the metal material 80) moves onto the mandrel protrusion 30 of the mandrel member 110.

Fig. 19 is a schematic diagram showing the operation of the forming machine 92, and schematically shows the formation of the U-shaped bent portion 88 having a large bending width by the cooperation of the mandrel 110 and the first, third, and fourth punches 131, 133, and 134. Fig. 20 is a schematic view showing a U-shaped bent portion 88 having a large bending width formed in the metal material 80 by the operation of the molding machine 92 shown in fig. 19. Subsequent to the third punch 133, the fourth punch 134 is correspondingly moved toward the mandrel protrusion 30 of the mandrel 110 by power from the driving source 174 controlled by the controller 170. When the fourth punch 134 reaches the processing position, the metal material 80 is pressed and bent between the fourth punch 134 and the mandrel protrusion 30, and a U-shaped bent portion 88 having a large bending width is formed in the metal material 80. The punching surface of the fourth punch 134 is disposed opposite to the fifth surface 35 of the mandrel protrusion 30 when the fourth punch 134 is located at the machining position.

A method of removing the mandrel 110 from the molding machine 92 will be described with reference to fig. 21 to 25. Fig. 21 is a schematic view showing that the mandrel 110 is rotated by the rotation of the mandrel support 120 in the molding machine 92. Fig. 22 is a schematic view showing that the mandrel 110 is rotated by the rotation of the mandrel support 120 in the molding machine 92. Fig. 23 is a schematic view showing the engagement of the core 110 with the transmission member 60 in the molding machine 92. Fig. 24 is a schematic view showing that the engagement between the mandrel 110 and the transmission member 60 is released in the molding machine 92. Fig. 25 is a schematic diagram showing the molding machine 92 in which the mandrel 110 is removed from the mandrel support portion 120.

In the present invention, the spindle support portion 120 is provided so as to be rotatable about the rotation axis AX120, and the engagement portion 115 of the spindle 110 is provided at a position radially outward away from the rotation axis AX120 of the spindle support portion 120. Therefore, by rotating the spindle support portion 120 as shown in fig. 21 and 22, the engagement between the spindle 110 and the transmission member 60 can be released as shown in fig. 23 and 24. As a result, as shown in fig. 25, the mandrel 110 can be detached from the mandrel support portion 120. When the engagement between the spindle 110 and the transmission member 60 is released, the rotation of the spindle support portion 120 is prevented by the rotation preventing member 199. That is, the mandrel holder 120 can freely rotate or rotate within a predetermined angular range in the structure 190.

The engaging portion 115 engages with the engaged portion 135 at a position away from the misalignment of the rotation axis AX120 of the mandrel support portion 120, and the engagement between the engaging portion 115 and the engaged portion 135 at the misalignment position away from the rotation axis AX120 is released by rotating the mandrel support portion 120 supporting the mandrel 110 relative to the structure 190. The mandrel support 120 remains attached to the structure 190. The mandrel support portion 120 can be prevented from being detached from the structure 190.

In some cases including the illustrated example, the mandrel 110 is detached from the mandrel support portion 120 on the first end portion 110m side of the mandrel 110 to which the metal material 80 is supplied. Since the mandrel 110 is detached from the mandrel support portion 120, the transmission member 60 can be prevented from moving.

In fig. 21 to 25, the structure 190 is not shown.

When replacing the mandrel, the following steps may be performed.

Step 1: the spindle support 120 that supports the spindle 110 is rotated about the rotation axis AX 120.

Step 2: the engagement between the transmission member 60 that transmits power to the spindle 110 and the spindle 110 is released based on the rotation of the spindle 110 corresponding to the rotation of the spindle support 120.

In some cases, including the illustrated example, the mandrel 110 has an engaging portion 115 that engages with the transmission member 60. The engaging portion 115 is provided at a position radially outward away from the rotation axis AX120 of the mandrel holder 120.

Based on the above teaching, a person skilled in the art can modify the embodiments variously. Reference signs placed within the scope of the claims are provided for reference only and are not intended to limit the scope of the claims.

Claims (9)

1. A molding machine is characterized by comprising:
a mandrel (110) that extends in an axial direction and that has an engagement portion (115) that engages with an engaged portion (135) of a transmission member (60) that transmits power for causing the mandrel (110) to move in the axial direction to the mandrel (110); and
a mandrel support portion (120) that supports the mandrel (110) inserted or arranged in the space extending in the axial direction,
a projection amount of the mandrel (110) from the mandrel support portion (120) can be adjusted based on the movement of the transmission member (60) in the axial direction,
the spindle support (120) is provided so as to be rotatable around a rotation axis (AX120),
the engagement portion (115) is provided at a position radially outward away from the rotation axis (AX120) of the mandrel support portion (120),
the engagement between the transmission member (60) and the mandrel (110) is released based on the rotation of the mandrel (110) corresponding to the rotation of the mandrel support (120) when the mandrel (110) does not move in the axial direction.
2. The molding machine of claim 1, wherein:
the mandrel support portion (120) is a cylindrical member extending in the axial direction.
3. The molding machine according to claim 1 or 2, wherein:
the engaging portion (115) is a recess provided on a side surface of the mandrel (110).
4. The molding machine according to claim 1 or 2, wherein:
the mandrel (110) has a first end (110m) to which a metal material (80) is supplied and a second end (110n) opposite to the first end (110m) in the axial direction,
the engaging portion (115) is provided near the second end portion (110 n).
5. The molding machine according to claim 1 or 2, further comprising:
and a structure (190) that rotatably holds the spindle support section (120).
6. The molding machine according to claim 1 or 2, further comprising:
and one or more punches (130) that are provided on the outer periphery of the mandrel (110) and that operate to form one or more bent portions in the metal material (80) in cooperation with the outer peripheral surface of the mandrel (110).
7. The molding machine according to claim 1 or 2, further comprising:
an anti-rotation member (199) for preventing rotation of the spindle support (120).
8. The molding machine of claim 5, wherein:
the structure (190) is provided with a rotation prevention member (199) for preventing the rotation of the spindle support section (120).
9. A method of replacing a mandrel, comprising:
a step of rotating a mandrel support (120) that supports a mandrel (110) around a rotation axis (AX 120); and
a step of releasing engagement between a transmission member (60) that transmits power to the spindle (110) and the spindle (110) when the spindle (110) does not move along the rotation axis (AX120) based on rotation of the spindle (110) corresponding to rotation of the spindle support (120),
a projection amount of the mandrel (110) from the mandrel support portion (120) can be adjusted based on the movement of the transmission member (60) in the axial direction of the mandrel (110),
the mandrel (110) includes an engagement portion (115) that engages with the transmission member (60), and the engagement portion (115) is provided at a position that is radially outward away from a rotation axis (AX120) of the mandrel support portion (120).
CN201710272456.7A 2017-04-24 2017-04-24 Molding machine and method for replacing mandrel CN108723179B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710272456.7A CN108723179B (en) 2017-04-24 2017-04-24 Molding machine and method for replacing mandrel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710272456.7A CN108723179B (en) 2017-04-24 2017-04-24 Molding machine and method for replacing mandrel
TW106123014A TWI625108B (en) 2017-04-24 2017-07-10 Replacement method of molding machine and mandrel

Publications (2)

Publication Number Publication Date
CN108723179A CN108723179A (en) 2018-11-02
CN108723179B true CN108723179B (en) 2020-09-01

Family

ID=63255953

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710272456.7A CN108723179B (en) 2017-04-24 2017-04-24 Molding machine and method for replacing mandrel

Country Status (2)

Country Link
CN (1) CN108723179B (en)
TW (1) TWI625108B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121326A (en) * 1982-05-22 1983-12-21 Cam Gears Ltd Valve sleeves
CN1176855A (en) * 1996-07-03 1998-03-25 阿玛达美都丽股份有限公司 Method for punching cutting guiding hole on punch-head assembly's platen, and punch-head assembly as well as platen thereof
CN2675290Y (en) * 2004-01-16 2005-02-02 娄甫君 Replacing device for punch of perforating machine
CN200970616Y (en) * 2006-10-25 2007-11-07 中国航空工业第一集团公司北京航空制造工程研究所 Quick mold changer for press bending and forming
CN102581133A (en) * 2012-03-08 2012-07-18 苏州新凌高强度紧固件有限公司 Punch device with changeable punch
CN105142455A (en) * 2014-02-27 2015-12-09 Ykk株式会社 Machine for forming stopper leaf spring
CN206912038U (en) * 2017-07-10 2018-01-23 齐双莲 A kind of punch press for being conveniently replaceable drift

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3962156B2 (en) * 1998-04-30 2007-08-22 オリンパス株式会社 Clip molding method and clip molding apparatus
JP2003010916A (en) * 2001-06-27 2003-01-15 Toshikazu Okuno Automatic control device for multi-directional bending machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121326A (en) * 1982-05-22 1983-12-21 Cam Gears Ltd Valve sleeves
CN1176855A (en) * 1996-07-03 1998-03-25 阿玛达美都丽股份有限公司 Method for punching cutting guiding hole on punch-head assembly's platen, and punch-head assembly as well as platen thereof
CN2675290Y (en) * 2004-01-16 2005-02-02 娄甫君 Replacing device for punch of perforating machine
CN200970616Y (en) * 2006-10-25 2007-11-07 中国航空工业第一集团公司北京航空制造工程研究所 Quick mold changer for press bending and forming
CN102581133A (en) * 2012-03-08 2012-07-18 苏州新凌高强度紧固件有限公司 Punch device with changeable punch
CN105142455A (en) * 2014-02-27 2015-12-09 Ykk株式会社 Machine for forming stopper leaf spring
CN206912038U (en) * 2017-07-10 2018-01-23 齐双莲 A kind of punch press for being conveniently replaceable drift

Also Published As

Publication number Publication date
CN108723179A (en) 2018-11-02
TWI625108B (en) 2018-06-01
TW201838540A (en) 2018-11-01

Similar Documents

Publication Publication Date Title
DE19624830C2 (en) Device and method for bending a metal cutting blade
US3810290A (en) Application tool for pierce nuts in strip form
JP2739612B2 (en) Product processing tools and dies for use in punch presses
CN202087671U (en) Simple precise die
CA1228614A (en) Apparatus for performing operations on strip material
US20100122563A1 (en) Method and apparatus for forming bend-controlling straps in sheet material
JP2008284590A (en) Structure of press die
US4510789A (en) Press brake
JP2008119704A (en) Press working apparatus
US5265320A (en) Metal stamping
JP4641828B2 (en) Feeder for dental metal wire in continuous fastener stringer manufacturing machine
JP4916104B2 (en) Punch press deburring tool
KR101525562B1 (en) Manufacturing apparatus for heat exchanger fins
CN107946783B (en) Crimp terminal and terminal crimping device
JP5216064B2 (en) Metal strip feeder
JP2007529324A (en) Continuous rotary drilling method and apparatus
KR20130004112A (en) Cutter equipped with a cutting clamp apparatus
JP4071248B2 (en) Spiral spring forming method and forming apparatus
WO2012042326A1 (en) An improved mechanism for upward lancing in a progressive die assembly
JP2008119703A (en) Punching device and punching method
KR20140114507A (en) Press mold
CN201644636U (en) Elastic part progressive die for electronic scale
JP2016129890A (en) Manufacturing method for ring-shaped member
JP5272054B2 (en) Metal strip feeder
CN203281731U (en) Lubricating structure of stamping die

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant