EP3397407A1 - A die assembly for forming sheet metal at a single stroke with a single press and a line system integrated therewith - Google Patents

A die assembly for forming sheet metal at a single stroke with a single press and a line system integrated therewith

Info

Publication number
EP3397407A1
EP3397407A1 EP16836129.3A EP16836129A EP3397407A1 EP 3397407 A1 EP3397407 A1 EP 3397407A1 EP 16836129 A EP16836129 A EP 16836129A EP 3397407 A1 EP3397407 A1 EP 3397407A1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
press
die assembly
line system
operations
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP16836129.3A
Other languages
German (de)
French (fr)
Inventor
Ensar YILDIRIM
Erhan Halit CEBI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yildiz Kalip Sanayi Ve Ticaret AS
Original Assignee
Yildiz Kalip Sanayi Ve Ticaret AS
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 Yildiz Kalip Sanayi Ve Ticaret AS filed Critical Yildiz Kalip Sanayi Ve Ticaret AS
Publication of EP3397407A1 publication Critical patent/EP3397407A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/027—Combined feeding and ejecting devices

Definitions

  • the invention relates to manufacturing sector, wherein it relates to a die assembly which allows performing sheet metal forming processes with a single press and to a line system integrated with said die assembly.
  • the invention particularly relates a die assembly which allows performing sheet metal forming processes at a single stroke with a single press and to a line system integrated with the die assembly.
  • Hot and cold rolled flat sheet metals manufactured for forming purposes are formed into various shapes using mechanical and hydraulic presses.
  • Sheet forming process includes bending, stretching, deep drawing, or various combinations of these basic methods. Sheet forming is performed between the punch (male die) and the matrix (female die).
  • the first one of said manufacturing techniques is to make dies with the same number as the operations, and then to perform manufacturing with different presses.
  • the workpiece is made into final product after various operations performed thereon. This process comprises several operations including deep drawing, trimming, piercing, bending, etc. In this case, the workpiece is obtained after as many processes as the number of operations.
  • Another manufacturing technique is the so-called "progressive die” process in which different operations are combined in the same die and step by step manufacturing is performed. In this case, the workpiece is obtained after as many strokes as the number of operations.
  • the manufacturing process is faster compared to the former technique. This is because the movement of the workpiece between the presses and an operator-dependent operation are eliminated.
  • the manufacturing process using a progressive die is the technique where the desired workpiece is obtained by simultaneously performing more than one trimming, piercing, drawing, bending, profile operations, etc. at each stroke of the press, instead of advancing the material strip.
  • the operations to be performed with more than one press otherwise can be performed using a single press and running consecutive operations.
  • Progressive dies are the dies in which the material strip is advanced to perform more than one operation, a series of processes, alternately.
  • a process performed using dies with a pressing capacity of 40-50 tons in average in more than one operation has started to be performed using a single press of 300 tons or more.
  • An alternative method has always been sought for due to the costs of the high-tonnage eccentric presses used for these operations and the difficulty of manufacturing methods.
  • the typical operations of sheet forming, i.e. forming and trimming operations are each performed in a separate die and with a separate press operation.
  • progressive forming and transferring method is envisaged and progressive dies and transfer dies are manufactured therefor. A manufacturing mode apart from these does not exist in the state of the art.
  • the International Patent Application No. DE2018207 discloses a sheet metal processing machine which allows forming sheet metals in one operation in one workstation.
  • the International Patent Application No. FR2377855 discloses a multiple stamping press for sheet metal having separate and independent stations.
  • the invention aims to solve the problems mentioned above, overcome all the disadvantages, and provide additional advantages to the configuration.
  • the object of the invention is to perform all the processes of the sheet metal piece (forming, trimming) at a single stroke, in a single operation (in the same section), and with a single press, at the same time preserving the quality of the workpiece.
  • a die assembly suited for said process and a line system adapted to said die assembly for mass production have been designed.
  • the number of operations and equipment for sheet metal manufacturing will be reduced according to the invention. Hence, the efficiency of the production will be increased, labor demand will be decreased, saving on time will be achieved, and thereby increasing the production capacity.
  • Fig. 1 shows the die assembly for forming sheet metal and the line system integrated with said die assembly.
  • Line system 10. Coil feeder 20. Driver 30. Press 31 . Die assembly 40. Scrap discharging conveyor DETAILED DESCRIPTION OF THE INVENTION
  • the line system (1 ) generally comprises a coil feeder (10), a driver (20), a press (30), a die assembly (31 ), and a scrap discharging conveyor (40). (See Fig. 1 )
  • the coil feeder (10) is the configuration where the sheet metal in coil is located. Said coil feeder (10) has a sheet metal feeding capacity of 60 m/min.
  • the driver (20) straightens the sheet metal coming from said coil feeder (10) in an inclined manner according to the cutting process and drives the same to the press (30) continuously.
  • the scrap discharging conveyor (40) is the configuration which allows discharging the scraps of the sheet metal resulting from the cutting process, out of the press (30).
  • Said press (30) is a hydraulic press and performs the desired forming processes on the sheet metal by means of the die assembly (31 ).
  • the die assembly (31 ) is capable of performing more than one operation at a single stroke with a single press.
  • the working principle of the line system (1 ) is as follows: said coil feeder (10) and the driver (20) orient the sheet metal towards the press (30) at a defined speed.
  • the die assembly (31 ) which is connected to said press (30) and where all operations are combined allows performing all the desired operations on the sheet metal by stroking the target sheet metal at a single stage, at a single stroke, and in the same section. This cycle continues and sheet metal piece manufacturing process is performed along one line. At each stroke, all of the operations are performed in the same section and 1 workpiece is thus manufactured.
  • the distinctive feature of the present die assembly (31 ) from the progressive die is that the latter performs manufacturing with consecutive operations.
  • the die assembly (31 ) included in the line system (1 ) is capable of performing all the forming, trimming operations at a single stroke and in the same section.
  • the scrap resulting from the operation are discharged from said press (30) by means of the scrap discharging conveyor (40), without requiring an operator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

Disclosed herein is die assembly which allows forming sheet metals, which is integrated with the press and capable of performing more than one process at a single stroke of the press in a single section; and a line system which is adapted to said die assembly and comprising a coil feeder, a driver, and a scrap discharging conveyor.

Description

DESCRIPTION
A DIE ASSEMBLY FOR FORMING SHEET METAL AT A SINGLE STROKE WITH A SINGLE PRESS AND A LINE SYSTEM INTEGRATED THEREWITH
FIELD OF THE INVENTION The invention relates to manufacturing sector, wherein it relates to a die assembly which allows performing sheet metal forming processes with a single press and to a line system integrated with said die assembly.
The invention particularly relates a die assembly which allows performing sheet metal forming processes at a single stroke with a single press and to a line system integrated with the die assembly.
BACKGROUND OF THE INVENTION
The issue of forming sheet metals, which particularly applies to automotive industry, as well as shipbuilding and aircraft industry, white goods manufacturers, machine parts manufacturers, kitchenware producers, and many other fields of the industry, has becoming more and more important and researches have been and are being made in this regard. The researches focus on the difficulties experienced in development and applications.
Hot and cold rolled flat sheet metals manufactured for forming purposes are formed into various shapes using mechanical and hydraulic presses. Sheet forming process includes bending, stretching, deep drawing, or various combinations of these basic methods. Sheet forming is performed between the punch (male die) and the matrix (female die).
Several manufacturing techniques are used for manufacturing sheet metal pieces. The first one of said manufacturing techniques is to make dies with the same number as the operations, and then to perform manufacturing with different presses. The workpiece is made into final product after various operations performed thereon. This process comprises several operations including deep drawing, trimming, piercing, bending, etc. In this case, the workpiece is obtained after as many processes as the number of operations. Another manufacturing technique is the so-called "progressive die" process in which different operations are combined in the same die and step by step manufacturing is performed. In this case, the workpiece is obtained after as many strokes as the number of operations. The manufacturing process is faster compared to the former technique. This is because the movement of the workpiece between the presses and an operator-dependent operation are eliminated. The manufacturing process using a progressive die is the technique where the desired workpiece is obtained by simultaneously performing more than one trimming, piercing, drawing, bending, profile operations, etc. at each stroke of the press, instead of advancing the material strip. In progressive die, the operations to be performed with more than one press otherwise can be performed using a single press and running consecutive operations. In recent years, with the efficiency gaining importance in the field of manufacture, it has been preferred to perform consecutive operations using a single die and single press by producing special dies, instead of performing said processes in 3-4, or even 6-7 operations using the conventional low-tonnage presses. Progressive dies are the dies in which the material strip is advanced to perform more than one operation, a series of processes, alternately. A process performed using dies with a pressing capacity of 40-50 tons in average in more than one operation has started to be performed using a single press of 300 tons or more. An alternative method has always been sought for due to the costs of the high-tonnage eccentric presses used for these operations and the difficulty of manufacturing methods. The typical operations of sheet forming, i.e. forming and trimming operations, are each performed in a separate die and with a separate press operation. For the workpieces which are suitable in terms of shape and amount, in turn, progressive forming and transferring method is envisaged and progressive dies and transfer dies are manufactured therefor. A manufacturing mode apart from these does not exist in the state of the art. There are several applications regarding single press manufacturing in national and international patent databases and most of these are generally related to a manufacturing process with a progressive die. The National Application No. TR200706614 discloses profile cutting machines which are capable of performing both cutting and punching operations using a formed die and formed die blades thanks to the front and rear support plates, without any distortion, deformation, or scrap in the sheet metal. Another National Application No. TR201213062 discloses a sheet metal processing machine which can perform piercing, bending, trimming, and edge blanking operations.
The International Patent Application No. DE2018207 discloses a sheet metal processing machine which allows forming sheet metals in one operation in one workstation. Again, the International Patent Application No. FR2377855 discloses a multiple stamping press for sheet metal having separate and independent stations.
As a result, the aforementioned problems and the lack of a solution have deemed it necessary to make a development in the related field. OBJECTS OF THE INVENTION
The invention aims to solve the problems mentioned above, overcome all the disadvantages, and provide additional advantages to the configuration.
The object of the invention is to perform all the processes of the sheet metal piece (forming, trimming) at a single stroke, in a single operation (in the same section), and with a single press, at the same time preserving the quality of the workpiece. In order to achieve this object, a die assembly suited for said process and a line system adapted to said die assembly for mass production have been designed.
It is aimed by the invention to perform manufacturing at a single process by minimizing the multiple operations during sheet metal piece manufacturing process. Thus, manufacturing process becomes more efficient and the costs of production are lowered.
Further, the number of operations and equipment for sheet metal manufacturing will be reduced according to the invention. Hence, the efficiency of the production will be increased, labor demand will be decreased, saving on time will be achieved, and thereby increasing the production capacity.
Moreover, energy saving will be made thanks to the invention. At the same time, less space in the manufacturing area will be occupied. As a consequence, a more ergonomic working environment will be established.
The structural and characteristic features, working principle, and all advantages of the invention will be understood more clearly by referring to the following drawings and the detailed description written with reference to these drawings. Therefore, while making an evaluation, these drawings and the detailed description should be taken into account.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 shows the die assembly for forming sheet metal and the line system integrated with said die assembly.
REFERENCE NUMERALS
1. Line system 10. Coil feeder 20. Driver 30. Press 31 . Die assembly 40. Scrap discharging conveyor DETAILED DESCRIPTION OF THE INVENTION
The line system (1 ) generally comprises a coil feeder (10), a driver (20), a press (30), a die assembly (31 ), and a scrap discharging conveyor (40). (See Fig. 1 )
The coil feeder (10) is the configuration where the sheet metal in coil is located. Said coil feeder (10) has a sheet metal feeding capacity of 60 m/min.
The driver (20) straightens the sheet metal coming from said coil feeder (10) in an inclined manner according to the cutting process and drives the same to the press (30) continuously. The scrap discharging conveyor (40) is the configuration which allows discharging the scraps of the sheet metal resulting from the cutting process, out of the press (30).
Said press (30) is a hydraulic press and performs the desired forming processes on the sheet metal by means of the die assembly (31 ). The die assembly (31 ) is capable of performing more than one operation at a single stroke with a single press. The working principle of the line system (1 ) is as follows: said coil feeder (10) and the driver (20) orient the sheet metal towards the press (30) at a defined speed. The die assembly (31 ) which is connected to said press (30) and where all operations are combined allows performing all the desired operations on the sheet metal by stroking the target sheet metal at a single stage, at a single stroke, and in the same section. This cycle continues and sheet metal piece manufacturing process is performed along one line. At each stroke, all of the operations are performed in the same section and 1 workpiece is thus manufactured. The distinctive feature of the present die assembly (31 ) from the progressive die is that the latter performs manufacturing with consecutive operations. The die assembly (31 ) included in the line system (1 ) is capable of performing all the forming, trimming operations at a single stroke and in the same section. The scrap resulting from the operation are discharged from said press (30) by means of the scrap discharging conveyor (40), without requiring an operator.

Claims

1 . A line system (1 ) adapted to a die assembly (31 ) which allows forming sheet metals, which is integrated with the press and capable of performing all the process of the workpiece at a single stroke, with a single press (30), and in a single section; and the line system (1 ) characterized in comprising:
- Coil feeder (10) which carries thereon the sheet metal in coils and which unrolls and feeds said sheet metal at a defined speed, and
- a driver (20) which straightens the sheet metal coming from said coil feeder (10) in an inclined manner according to the cutting process and drives the same to the press (30) continuously.
2. The line system (1 ) as in Claim 1 , characterized in comprising a scrap discharging conveyor (40) which serves for discharging the scraps resulting from forming the sheet metal in said press (30).
EP16836129.3A 2015-12-31 2016-12-29 A die assembly for forming sheet metal at a single stroke with a single press and a line system integrated therewith Pending EP3397407A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2015/17667A TR201517667A2 (en) 2015-12-31 2015-12-31 MOLD ASSEMBLY SHAPING METAL SHEET METAL IN ONE PRESS IN ONE IMPACT AND INTEGRATED LINE SYSTEM TO MOLD ASSEMBLY
PCT/TR2016/050561 WO2017116375A1 (en) 2015-12-31 2016-12-29 A die assembly for forming sheet metal at a single stroke with a single press and a line system integrated therewith

Publications (1)

Publication Number Publication Date
EP3397407A1 true EP3397407A1 (en) 2018-11-07

Family

ID=58016771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16836129.3A Pending EP3397407A1 (en) 2015-12-31 2016-12-29 A die assembly for forming sheet metal at a single stroke with a single press and a line system integrated therewith

Country Status (3)

Country Link
EP (1) EP3397407A1 (en)
TR (1) TR201517667A2 (en)
WO (1) WO2017116375A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108421872B (en) * 2018-04-16 2024-03-19 福建金杨科技股份有限公司 Method for punching battery steel shell and automatic production line thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2018207C3 (en) 1970-04-16 1978-08-31 Standun, Inc., Compton, Calif. (V.St.A.) Deep drawing tool
DE2538239C3 (en) * 1975-08-28 1978-08-17 L. Schuler Gmbh, 7320 Goeppingen Device for conveying punched parts
FR2377855A1 (en) 1977-01-20 1978-08-18 Blanzy Comte Gilbert Stamping press for sheet metal - has stations for different operations, keeping members attached to sheet metal until final operation
TR200706614U (en) 2007-09-26 2008-01-21 Avci Gürbüz Innovation in profile cutting machines.
TR201213062U (en) 2012-11-13 2013-01-21 Turtuk Ilyas Sheet metal processing machine for punching, bending, corner cutting and edge unloading.

Also Published As

Publication number Publication date
WO2017116375A1 (en) 2017-07-06
TR201517667A2 (en) 2017-03-21

Similar Documents

Publication Publication Date Title
TW201620639A (en) A method for making a spanner
KR101114519B1 (en) Method and pulley for manufacturing an industrial machines pulley
CN204685815U (en) A kind of Trinity assembled tool of winding
EP3397407A1 (en) A die assembly for forming sheet metal at a single stroke with a single press and a line system integrated therewith
CN104625626A (en) Spanner tool manufacturing method
CN111014446A (en) Full-automatic production device for stamping and stretching
JP5299056B2 (en) Multi-process press machine and press working method
CN202137266U (en) USB iron casing die
CN204108124U (en) Automatic riveting in the die fastener mould
CN103831593B (en) The forming method of air-conditioning draught fan end circle
CN105964800A (en) Detachable stamping die
CN203184553U (en) Full-automatic processing forming device of elastic check ring
RU80371U1 (en) STAMP FOR PUNCHING HOLES
RU2282516C2 (en) Method and die set for forming body parts
CN109955032A (en) Lower cross arm liner plate production technology
CN204974966U (en) Part forming die
CN204108133U (en) Intersection hardware dies
CN102641981A (en) Continuous forging die
CN219357616U (en) Stamping die for processing electronic cigarette atomizing tube or electrode connecting terminal component
CN204867068U (en) Synchronous plastic stamping die
CN217070422U (en) Stamping die subassembly to semi-circular panel beating goods
CN104476120B (en) Forming technical method of square through plate with wedge-shaped through hole
CN110900109A (en) Cold stamping production process for lower plate of front cross beam of automobile
CN202137273U (en) Electric control cabinet material bridge frame mould with primary back pressure workstation
CN102327973A (en) Cable interface die

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180730

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20211020

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230508