KR20100013635A - A material bending apparatus for progressive mold - Google Patents

A material bending apparatus for progressive mold Download PDF

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Publication number
KR20100013635A
KR20100013635A KR1020080075246A KR20080075246A KR20100013635A KR 20100013635 A KR20100013635 A KR 20100013635A KR 1020080075246 A KR1020080075246 A KR 1020080075246A KR 20080075246 A KR20080075246 A KR 20080075246A KR 20100013635 A KR20100013635 A KR 20100013635A
Authority
KR
South Korea
Prior art keywords
base
die
mold
punch
bending
Prior art date
Application number
KR1020080075246A
Other languages
Korean (ko)
Inventor
김호식
Original Assignee
한국단자공업 주식회사
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 한국단자공업 주식회사 filed Critical 한국단자공업 주식회사
Priority to KR1020080075246A priority Critical patent/KR20100013635A/en
Publication of KR20100013635A publication Critical patent/KR20100013635A/en

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    • 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
    • B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/02Bending by stretching or pulling over a die
    • 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
    • B21D31/00Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/06Deforming sheet metal, tubes or profiles by sequential impacts, e.g. hammering, beating, peen forming
    • 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
    • B21D35/001Shaping combined with punching, e.g. stamping and perforating
    • 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
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process
    • 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
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles

Abstract

The present invention relates to a base material bending device of a progressive mold. The present invention is provided with an upper mold holder 50 to which an upper retainer 54 having a punch 56 is mounted. The lower mold retainer 12 is mounted on the lower mold holder 10 facing the upper mold holder 50. The lower mold retainer 12 is installed to raise and lower the support pad 14 at a position corresponding to the punch 56. In addition, a pair of hinge dies 30 are rotatably installed on the lower mold retainer 12. The hinge die 30 is supported on one side by the support pad 14, and cooperates with the punch 56 to apply a force in a direction perpendicular to the moving direction of the punch 56 so that the base material 60 is bent. To be. According to the present invention, since the bending is made by the pressing force on both sides of the base material, it is possible to prevent the springback phenomenon after forming the base material, and to rotate the hinge die while the support pad is raised after the base material is formed. The product is located at the end of the hinge die, so that the product can be easily taken out.

Description

A material bending apparatus for progressive mold

The present invention relates to a terminal, and more particularly, to a base material bending device for bending the base material by pressing the base material between the punch and the die in a progressive die.

In the progressive mold, the belt-like base material, which is longer than its width, is continuously transported to sequentially process to make a desired product. That is, each machining is sequentially performed in a pair of dies and punches installed corresponding to each other in the progressive molds, thereby producing a product.

In general, the progressive mold is divided into a movable side and a fixed side. The movable side has a structure that can selectively move in the fixed side direction. The movable side is provided with a punch for applying pressure to the base material and is driven together with the movable side.

The backing plate is seated on the fixed side, and a lower mold retainer is formed on the upper surface of the backing plate to form a recessed pocket. A die for molding the base material together with the press punch is seated in the pocket. The press punch and the die cooperate with each other to bend the base material transferred to the upper surface of the lower mold retainer to form a product.

However, the above-described progressive mold according to the prior art has the following problems.

When the upper surface of the die is formed to be recessed, and the punch is formed to correspond to the upper surface of the recessed die, the punch is moved in a direction perpendicular to the die to form a base material. As such, when the base material is hit in one direction and the bending is made, there is a problem that a bending error occurs due to a springback phenomenon.

In addition, when the base material is bent, the base material is pressed into the die by the punch. In this case, even when the punch is raised, the base material does not fall out of the die, so that the base material is not transferred to the next process.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, to provide a base material bending device of the progressive mold for applying the force on both sides of the base material to bend.

Another object of the present invention is to provide a base metal bending apparatus of a progressive mold having a structure for facilitating take-out after the molding of the base metal in the progressive mold is completed.

According to a feature of the present invention for achieving the object as described above, the present invention comprises: an upper mold holder equipped with an upper retainer having a punch; A lower mold holder provided to face the upper mold holder and mounted with a lower mold retainer installed at a position corresponding to the punch to raise and lower the support pad; A pair is rotatably installed on the lower mold retainer, is symmetrically installed around the support pad, and one side is supported by the support pad, and cooperates with the punch to apply a force in a direction perpendicular to the moving direction of the punch. It is characterized in that it comprises a hinge die to bend.

The lower mold holder is provided with a support pin for supporting the support pad, and the support pin is provided with a support spring to provide an elastic force in a direction close to the punch.

An end surface of the support pad is characterized in that the support surface for supporting the hinge die is inclined.

The lower die retainer is characterized in that the hinge die is installed and the installation space in which the support pad is elevated is formed to be opened.

The punch tip is formed at the front end of the punch to cooperate with the hinge die to bend the base material, and both sides of the punch forming part are provided with a die pressing surface pressing and touching the hinge die.

The lower mold retainer is characterized in that a transport block for transporting the base material.

The upper surface of the transfer block is formed with a conveying surface for conveying the base material, characterized in that each side of the conveying surface is provided with a transfer fence for guiding the transfer of the base material.

The hinge die may include a die body rotatably installed at the lower mold retainer; A seating surface formed on a molding portion extending from the tip of the die body; It characterized in that it comprises a bending surface formed on the die body in a direction perpendicular to the seating surface.

The front end of the die body is characterized in that the die transfer surface is the inclined die transfer surface.

The die transfer fence for guiding the transfer of the base material is provided on both sides of the die transfer surface, respectively.

In the present invention, the punch is pressed during the bending of the base material and the hinge die is rotated on both sides to press the both sides of the base material to bend by the force acting in three directions. As such, bending is performed by the pressing force on both sides of the base material, thereby preventing the spring back phenomenon from occurring after the base material is formed.

In the present invention, the support pad is raised after forming the base material to rotate the hinge die so that the product is located at the end of the hinge die so that the product can be easily taken out. As a result, there is an effect that the operation reliability of the progressive mold is improved.

Hereinafter, a preferred embodiment of a base material bending device of a progressive mold according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a configuration of a preferred embodiment of the base material bending device of the progressive mold according to the present invention, Figure 2 is a plan view of the transfer block constituting an embodiment of the present invention, Figure 3 constitutes an embodiment of the present invention It is a top view of the hinge die.

As shown in these figures, a backing plate 11 and a lower mold retainer 12 are mounted on the lower mold holder 10. The backing plate 11 and the lower mold retainer 12 are fastened together on the lower mold holder 10. The backing plate 11 may be considered to be substantially part of the lower mold retainer 12.

On one side of the lower mold retainer 12, a predetermined installation space 12 'is formed. The installation space 12 ′ is formed by opening a portion of the lower mold retainer 12 upward and downward. The installation space 12 ′ is provided with a support pad 14 and a hinge die 30 to be described below.

The lower mold retainer 12 is installed so that the support pad 14 is elevated. The support pad 14 is installed at a position corresponding to the punch 56 to be described below. The support pad 14 serves to support the base material 60 to a predetermined height. The support pad 14 is supported by the supporter pin 18 to be described below.

End surfaces of the support pads 14 are inclined to support surfaces 16, respectively. The support surface 16 is a portion formed to support the hinge die 30 to be described below. The support surface 16 is formed in an inclined direction to support the hinge die 30 which is rotated inclined with respect to the lower mold retainer 12.

The lower mold holder 10 is provided with a supporter pin 18. The supporter pin 18 is a portion for supporting the support pad 14. The supporter pins 18 are provided with supporter springs 20, respectively. The supporter spring 20 supports the supporter pin 18 with an elastic force, and provides the elastic force in a direction in which the support pad 14 approaches the punch 56.

Meanwhile, the transport block 22 is installed in the installation space 12 ′. The transfer block 22 is fixed to the installation space 12 ′ by a fastener 24 fixed to the backing plate 11. The fastener 24 passes through the fastening hole 22 ′ (see FIG. 2) to fix the transfer block 22. The transfer block 22 is formed to be inclined to face the hinge die 30 so as not to interfere with the hinge die 30. The transfer block 22 serves to transfer the base material 60 toward the punch 56.

Referring to FIG. 2, a transfer surface 26 is formed flat on the top surface of the transfer block 22. On the conveying surface 26, a strip-shaped base material 60 is conveyed in the A direction (see Fig. 1). And, on both sides of the conveying surface 26 is provided with a conveying fence 28, respectively. The transfer fence 28 prevents the side from being separated laterally during the transfer of the base material 60 and guides the transfer of the base material 60.

Referring back to FIG. 1, a pair of hinge dies 30 are rotatably installed in the installation space 12 ′. The hinge die 30 is rotatably installed around the hinge pin 32 inserted into the hinge hole 30 '(see FIG. 3). The hinge die 30 is installed symmetrically on both sides with respect to the support pad 14. The hinge die 30 serves to bend the base material 60 in cooperation with the punch 56. That is, the hinge die 30 is rotated so that the base material 60 is bent by the hinge die 30 from both sides to be stable.

The exterior body and skeleton of the hinge die 30 is formed by a die body 31 having a rectangular rectangular parallelepiped shape. At the tip of the die body 31, a molding part 34 is formed to extend to a predetermined length. A seating surface 35 is formed on an upper surface of the molding part 34. The seating surface 35 is a part where the base material 60 is seated in the molding process.

The die body 31 has a bending surface 36 formed in a direction perpendicular to the seating surface 35. The bending surface 36 is a portion for forming the bending portion 62 at the time of forming the base material 60.

The die transfer surface 38 is inclined at one end of the die body 31. The die transfer surface 38 is formed to be located on the same plane as the transfer surface 26 when the hinge die 30 is rotated. The die transfer surface 38 is a portion to which the strip-shaped base material 60 is transferred. On both sides of the die transfer surface 38, the die transfer fence 40 is provided to protrude. The die feed fence 40 serves to prevent the side material from being separated laterally during the transfer of the base material 60 and to guide the transfer of the base material 60.

The upper mold holder 50 is provided above the lower mold holder 10. The upper holder 50 is lifted by a separate device, the backing plate 52 and the upper retainer 54 is installed on the lower surface. The backing plate 52 and the upper retainer 54 are mounted together with the upper holder 50. In practice, the backing plate 52 may be regarded as part of the upper retainer 54.

The punch 56 is provided in the upper upper retainer 54. The punch 56 is lifted together with the upper holder 50. The punch 56 cooperates with the hinge die 30 to form the bending part 62 of the base material 60.

The punch molding portion 57 protrudes from the tip of the punch 56. The punch molding portion 57 protrudes from the tip of the punch 56 to a predetermined length, and forms the base material 60 together with the molding portion 34 of the hinge die 30. The punch molding part 57 is formed to correspond to the shape of the base material 60 to which molding is completed.

The punch 56 is formed with a die pressing surface 58. The die pressing surface 58 serves to press the hinge die 30 when the punch 56 is lowered. The die pressing surface 58 is formed on the surfaces corresponding to both sides of the punch molding portion 57, respectively.

Hereinafter, the operation of the base material bending device of the progressive mold according to the present invention having the configuration as described above will be described in detail.

In a progressive mold, the process for making a final product, such as a terminal, is carried out sequentially, conveying a long strip | belt-shaped base material 60 continuously. Such processing is performed while the punch 56 hits the base material 60 seated on the hinge die 30.

First, the strip-shaped base material 60 for molding is conveyed along the direction of arrow A shown in FIG. The base material 60 is conveyed in the direction of the arrow along the conveying surface 26 of the conveying block 22. The base material 60 passes through the die transfer surface 38 via the transfer surface 26 and is positioned above the support pad 14.

When the base material 60 is located above the support pad 14, the upper mold holder 50 is lowered toward the lower mold holder 10. As the upper holder 50 is lowered, the punch 56 is lowered together.

When the punch 56 is lowered and contacts the base material 60, the support pad 14 is lowered by the force that the punch 56 presses. The support pad 14 is lowered while being supported by the elastic force of the supporter spring 20. The hinge die 30 is rotated toward the lower mold holder 10 by the force of the punch 56. That is, the hinge die 30 is rotated in contact with the die pressing surface 58 of the punch 56.

In this state, when the punch 56 is further lowered together with the upper mold holder 50, bending of the base material 60 occurs. That is, the support pad 14 is lowered to the backing plate 11 by the pressing force of the punch 56 and the hinge die 30 is in contact with the upper surface of the backing plate 11 until the die pressing surface ( By 58).

At this time, both ends of the base material 60 is bent by the bending surface 32 of the punch molding portion 56 and the hinge die 30 is formed as shown in FIG. The base material 60 is bent while receiving a force in three directions as shown by the arrow direction shown in FIG. 4. That is, bending is not performed only by the force pressed by the punch 56 as in the related art, and the bending of the base material 60 is more accurate because the bending is performed by the pressing force on both sides while the hinge die 30 rotates. And stable. As such, the bending part 62 may be formed by the pressing force of the hinge die 30 on both sides, and thus, springback may occur after the completion of the product.

When the molding of the base material 60 is completed, the upper mold holder 50 is raised together with the punch 56. When the upper holder 50 is raised, the support pad 14 is raised by the supporter spring 20 supporting the support pad 14, and the hinge die 30 is also lifted from the upper holder 50. Rotate away.

When the hinge die 30 is rotated to the state shown in FIG. 1, the finished base material 60 is supported at the end of the molding part 35, thereby making it easier to take out the base material 60.

The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self evident.

1 is a cross-sectional view showing the configuration of a preferred embodiment of the base material bending device of the progressive mold according to the present invention.

2 is a plan view of a transport block constituting an embodiment of the present invention.

3 is a plan view of a hinge die constituting an embodiment of the present invention.

Figure 4 is a cross-sectional view showing a state in which the base material is bent in the progressive mold according to the present invention.

Explanation of symbols on the main parts of the drawings

10: lower holder 11: backing plate

12: lower retainer 12 ': installation space

14 support pad 16 support surface

18: supporter pin 20: supporter spring

22: transfer block 24: fastener

26: transfer surface 28: transfer fence

30: hinge die 30 ': hinge ball

31: die body 32: hinge pin

34: molded part 35: seating surface

36: bending face 38: die feed surface

40: die feed fence 50: upper holder

52: backing plate 54: upper retainer

56: Punch 57: Punch Molding Part

58: die pressing surface

Claims (10)

  1. An upper holder provided with an upper retainer having a punch;
    A lower mold holder provided to face the upper mold holder and mounted with a lower mold retainer installed at a position corresponding to the punch to raise and lower the support pad;
    A pair is rotatably installed on the lower mold retainer, is symmetrically installed around the support pad, and one side is supported by the support pad, and cooperates with the punch to apply a force in a direction perpendicular to the moving direction of the punch. The base material bending device of the progressive mold, characterized in that it comprises a hinge die to be bent.
  2. The method of claim 1,
    The lower mold holder is provided with a support pin for supporting the support pad, the support pin is provided with a support spring, the base material bending device of the progressive mold, characterized in that the support pad provides an elastic force in the direction close to the punch.
  3. The method of claim 1,
    The base material bending device of the progressive mold, characterized in that the support surface for supporting the hinge die is inclined at the end edge of the support pad.
  4. The method of claim 1,
    The base mold bending device of the progressive mold, characterized in that the lower die retainer is installed so that the installation space for the hinge die is installed and the support pad is elevated.
  5. The method of claim 1,
    The base of the progressive mold is formed at the front end of the punch is formed with a punch forming portion for cooperating with the hinge die to bend the base material, die pressing surface for pressing in contact with the hinge die on both sides of the punch forming portion. Bending device.
  6. The method of claim 1,
    The base mold bending device of the progressive mold, characterized in that the lower mold retainer is provided with a transfer block for transferring the base material.
  7. The method of claim 6,
    The upper surface of the conveying block is formed with a conveying surface for conveying the base material, the substrate bending apparatus of the progressive mold, characterized in that each side of the conveying surface is provided with a transfer fence for guiding the conveyance of the base material.
  8. The hinge die according to any one of claims 1 to 7,
    A die body rotatably installed at the lower mold retainer;
    A seating surface formed on a molding portion extending from the tip of the die body;
    The base material bending device of the progressive mold, characterized in that it comprises a bending surface formed on the die body in a direction perpendicular to the seating surface.
  9. The method of claim 8,
    The base material bending device of the progressive mold, characterized in that the die transfer surface to the base material is inclined at the front end of the die body.
  10. The method of claim 9,
    The base material bending device of the progressive mold, characterized in that each of the die feed fence for guiding the transfer of the base material is provided on both sides of the die feed surface.
KR1020080075246A 2008-07-31 2008-07-31 A material bending apparatus for progressive mold KR20100013635A (en)

Priority Applications (1)

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KR1020080075246A KR20100013635A (en) 2008-07-31 2008-07-31 A material bending apparatus for progressive mold

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KR1020080075246A KR20100013635A (en) 2008-07-31 2008-07-31 A material bending apparatus for progressive mold

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KR20100013635A true KR20100013635A (en) 2010-02-10

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950211A (en) * 2012-11-29 2013-03-06 重庆市华青汽车配件有限公司 Pressure-regulating forming mold for U-shaped bend piece
CN106694751A (en) * 2017-02-18 2017-05-24 常山县鑫晖清洁用品有限公司 Automatic iron wire bending device
CN107214235A (en) * 2017-07-18 2017-09-29 合肥通祥智能信息科技有限公司 A kind of steel pipe bending device of convenient use
CN107584023A (en) * 2017-10-10 2018-01-16 合肥常青机械股份有限公司 A kind of automobile uses push rod multi-station mold
KR20190006317A (en) * 2017-07-10 2019-01-18 (주)재영테크 Press Type Bending Apparatus
WO2019216660A1 (en) * 2018-05-10 2019-11-14 (주)경남금속 Angle correcting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950211A (en) * 2012-11-29 2013-03-06 重庆市华青汽车配件有限公司 Pressure-regulating forming mold for U-shaped bend piece
CN102950211B (en) * 2012-11-29 2015-12-23 重庆市华青汽车配件有限公司 U-shaped bending part pressure regulation mould
CN106694751A (en) * 2017-02-18 2017-05-24 常山县鑫晖清洁用品有限公司 Automatic iron wire bending device
KR20190006317A (en) * 2017-07-10 2019-01-18 (주)재영테크 Press Type Bending Apparatus
CN107214235A (en) * 2017-07-18 2017-09-29 合肥通祥智能信息科技有限公司 A kind of steel pipe bending device of convenient use
CN107584023A (en) * 2017-10-10 2018-01-16 合肥常青机械股份有限公司 A kind of automobile uses push rod multi-station mold
WO2019216660A1 (en) * 2018-05-10 2019-11-14 (주)경남금속 Angle correcting device

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