US20110179847A1 - Tool for forming the bottom of cans - Google Patents
Tool for forming the bottom of cans Download PDFInfo
- Publication number
- US20110179847A1 US20110179847A1 US12/931,190 US93119011A US2011179847A1 US 20110179847 A1 US20110179847 A1 US 20110179847A1 US 93119011 A US93119011 A US 93119011A US 2011179847 A1 US2011179847 A1 US 2011179847A1
- Authority
- US
- United States
- Prior art keywords
- ejector
- downholder
- draw tool
- deep draw
- tool according
- 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.)
- Abandoned
Links
Images
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/30—Deep-drawing to finish articles formed by deep-drawing
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
Definitions
- the invention resides in a deep-draw tool for forming the bottom of two-part cans, in particular of beverage cans but also of spray cans.
- Cans are manufactured in large series production where high reliability is important.
- DE 69802945 T2 and DE 8205933 U1 are concerned with the manufacture of cans, in particular the forming of their bottoms.
- the beverage cans are produced there in each case in a multi-step shaping process which among others includes a step for the manufacture of the cup shape which is called cup.
- the unfinished cups are first stretched in a further shaping process and subsequently their bottoms are deformed. This deformation procedure is a deep-draw process which is to be performed on the thin-walled relative delicate not yet cut can.
- the semi-finished can After completion of the bottom deforming procedure the semi-finished can must be removed from the deep-draw tool and carried away. In the process it must not be stuck in the deep-draw tool nor must it be moving in an uncontrolled manner.
- a known tool for forming a container bottom, in particular the bottom of a beverage can is provided with an ejector 23 which is of sleeve-like shape and arranged between a downholder 14 and a dome 12 .
- the ejector 23 is biased by a spring means 26 against the activating direction of a punch 3 with a pre-tensioning force which is substantially lower than the counter force of the downholder.
- the spring means 26 can be formed by compression springs 27 , 28 which are arranged in axial cavities formed in the front face of the ejector 23 .
- the ejector force can be changed by changing the compression springs or the number of compression springs.
- the deep-draw tool includes a plunger with a punch which is adapted to the desired internal shape of the can.
- the deep draw tool includes in a second tool part a dome which corresponds to a central concave part of the outer body shape of the can.
- the plunger and the dome are supported so as to be movable relative to each other wherein preferably one of the two mentioned elements, preferably, the dome is stationary.
- a downholder which is arranged concentrically and supported so as to be movable relative to the dome.
- the direction of moveability of the down holder is the same as the direction of movement of the plunger.
- the punch is preferably provided with a shaping surface which faces the bottom of the can.
- This, for example about conical, shaping surface is preferably adapted to an outer annular zone of the desired bottom shape.
- the down holder is supported so as to be movable preferably against the force of a draw cushion for example in the form of a pneumatic cylinder. During the deep-draw procedure it holds the bottom at an outer annular area in engagement with the punch and in this way determines or, respectively, controls to a large extent the shaping of the central bottom section.
- the punch is preferably provided with aeration openings to permit the escape of air from the can when the punch moves into the semi-finished can.
- the lower tool part includes an ejector which separates the semi-finished can after completion of the bottom shaping step from the central dome and the downholder ring and brings it into a defined position.
- the extraction device is moved preferably by a relatively weak spring means.
- the movement performed, generally by the ejector is preferably greater than the stroke of the downholder.
- the ejector and the downholder end both at an upper plane when the deep draw tool is open.
- the ejector ends preferably at the lower rim of the shaping surface of the downholder.
- the ejector moves with each operating stroke over a length corresponding to the sum of the downholder stroke and the ejector stroke.
- the downholder and the ejector are each annular or sleeve-like structures. They are preferably concentric to each other as well as concentric to the dome arranged in the center.
- the downholder and the ejector are preferably axially movable relative to each other.
- the spring means provided for activating the ejector is engaged preferably between the downholder and the ejector.
- the spring means comprises several compression springs which are arranged in pockets of the ejector which are provided for that purpose and which are oriented axially.
- FIG. 1 is a schematic representation of a machine for forming cans and bottoms of cans
- FIG. 2 is a tool utilized in the machine of FIG. 1 for forming container bottoms before the deformation of the container bottom shown in a schematic simplified longitudinal cross-sectional view;
- FIG. 3 is the tool according to FIG. 2 during the transformation of the container bottom shown in a longitudinal cross-sectional view
- FIG. 4 is the tool according to FIG. 3 after completion of the transformation procedure of the container bottom with the punch retracted from the bottom part shown in a schematic longitudinal cross-sectional view;
- FIG. 5 is the tool according to FIG. 3 after completion of the transformation procedure of the container bottom shown in a schematic longitudinal cross-sectional view.
- FIG. 1 shows a machine 1 which is used in the manufacture of cans and which performs at least the step of forming the can bottoms but, if applicable, also the stretching of the cylindrical body—so-called wall ironing.
- the machine 1 includes a tool 2 which comprises an upper tool part 3 and a lower tool part 4 .
- the upper tool part is in the form of a punch 3 and mounted to a plunger 5 which executes a back and forth movement as indicated by the arrow 6 .
- the lower tool part 4 on the other hand is at least preferably stationary so that the tool 2 is opened and closed constantly in accordance with the periodic movement of the plunger 5 .
- the tool 2 is shown in FIGS. 2 to 4 in different operating stages.
- the punch 3 has for example a basic essentially cylindrical shape, wherein its lower front side faces the lower tool part 4 .
- the punch 3 and the lower tool part 4 may be arranged side-by-side as shown in FIG. 1 or, alternatively, on top of one another or in any other orientation.
- the front face 7 of the punch 3 is shaped like the inner surface of the container bottom to be formed.
- a central concave surface area 8 as seen from the outside, is surrounded by an annular rib 9 from which an annular about conical preferably slightly concave outer surface area 10 extends up to the cylindrical outer surface 11 of the punch 3 .
- the lower tool part 4 includes, corresponding to the punch 3 with its shapes, in particular the shape of the front face 7 , a central stationary dome 12 .
- the dome 12 has at its side facing the front face 7 , a surface area 13 whose shape corresponds essentially to the shape of the surface area 8 of the punch 3 .
- the dome 12 is a separate element inserted into the lower tool part 4 and preferably stationarily supported therein. As illustrated in the schematic representation of FIG. 2 .
- an annular downholder 14 is arranged. At its side facing the punch 3 the downholder 14 is provided with a shaped surface 15 , which is preferably about conical and adapted in its shape to the outer surface 10 of the punch 3 .
- the shaped surface 15 is provided to apply during the transformation procedure a defined engagement force to an outer area 16 of the bottom 17 of the container 18 which is directed toward the punch 3 in order to control the deformation of the central area of the bottom 17 .
- the downholder 14 is movably supported in the lower tool part 4 . The direction of movement is indicated by the arrow 19 which also indicates the direction of movement of the punch 3 .
- a draw cushion 20 is provided, which is, for example, in the form of a pneumatic cylinder. This is in abutment, preferably via several pressure pins 21 , 22 , with the front face of the downholder 14 which faces away from the punch 3 .
- annular gap Between the downholder 14 and the dome 12 there is preferably an annular gap whose diameter is preferably at least essentially the same as that of the rib 9 .
- annular gap a sleeve like ejector 23 is arranged which is movable in the direction of the arrow 19 .
- the ejector 23 has an upper annular front face 24 which is preferably planar and coherent. In its rest position, that is when the deep-draw tool is open, the downholder 14 and the ejector 23 are in their highest possible position. The ejector 23 then abuts an annular shoulder 25 of the downholder 14 .
- a spring means 26 for example, in the form of a first compression spring 27 , a second compression spring 28 and, if necessary additional compression springs which are not shown hold the ejector in that position. This position is shown separately in FIG. 5 .
- the upper front face area 24 of the ejector is in this position about at the same level as the upper end 29 of the shaped surface 15 or slightly thereabove.
- the compression springs 27 , 28 are supported with one end on the ejector 23 and with their other end on the downholder 14 , or respectively, a washer 30 mounted to the downholder 14 .
- a cavity cut into the ejector 23 for accommodating the first compression spring 27 is provided in FIG. 2 at the left .
- the respective cavity for the accommodation of the second compression spring 28 is shown hidden.
- the machine 1 and the tool 2 as described so far operate as follows:
- FIG. 2 First an unfinished cup-shaped interim blank for forming the container 18 is inserted into the tool 2 and the punch 3 is introduced into the interior thereof. This state is shown in FIG. 2 .
- the still essentially flat bottom 17 of the container is disposed on the ejector 23 and/or the downholder 14 .
- the punch 3 moves toward the lower tool part 4 , that is downwardly in FIG. 2 .
- first the ejector 23 is pushed downwardly and the compression springs 27 , 28 are compressed.
- the spring compression force however, is substantially smaller than the force of the draw cushion 20 .
- the outer zone of the bottom 17 is seated on the shaped surface 15 whereby the outer area 16 of the container is engaged between the punch 3 and the downholder 14 .
- the central section of the bottom 17 is drawn over the surface 13 of the dome 12 .
- the ejector 23 has reached its lowest possible position with regard to the downholder 14 , wherein the front face 24 has reached or exceeded the lower end 32 of the shaped surface 15 , shown in FIG. 5 by a dashed line 31 .
- the drawing process is now continued in that the punch 3 is further moved downwardly until the bottom 17 is formed between the surface areas 8 and 13 .
- the ejector 23 experiences a stroke which corresponds to the sum of the distance between the ends 29 , 32 of the mold surface 15 and the stroke of the downholder 14 .
- the punch 3 is moved away from the lower tool part 4 and, as a result, out of the container 18 .
- the downholder 23 in the process last moves the bottom 17 of the container 18 away from the surface 13 . Sticking of the container 18 to the downholder 14 or respectively the shaped surface 15 is then prevented by the ejector 23 .
- the spring means 26 pushes the container 18 at the rib formed at the bottom thereof upwardly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
A known tool for forming a container bottom, in particular the bottom of a beverage can is provided with an ejector 23 which is of sleeve-like shape and arranged between a downholder 14 and a dome 12. The ejector 23 is biased by a spring means 26 against the activating direction of a punch 3 with a pre-tensioning force which is substantially lower than the counter force of the downholder. The spring means 26 can be formed by compression springs 27, 28 which are arranged in axial cavities formed in the front face of the ejector 23. The ejector force can be changed by changing the compression springs or the number of compression springs.
Description
- This application claims the priority of German Application No. 10 2010 000 235.6 filed Jan. 27, 2010.
- The invention resides in a deep-draw tool for forming the bottom of two-part cans, in particular of beverage cans but also of spray cans.
- Cans are manufactured in large series production where high reliability is important. For example, DE 69802945 T2 and DE 8205933 U1 are concerned with the manufacture of cans, in particular the forming of their bottoms. The beverage cans are produced there in each case in a multi-step shaping process which among others includes a step for the manufacture of the cup shape which is called cup. The unfinished cups are first stretched in a further shaping process and subsequently their bottoms are deformed. This deformation procedure is a deep-draw process which is to be performed on the thin-walled relative delicate not yet cut can. After completion of the bottom deforming procedure the semi-finished can must be removed from the deep-draw tool and carried away. In the process it must not be stuck in the deep-draw tool nor must it be moving in an uncontrolled manner.
- On this basis, it is the object of the present invention to provide a bottom forming tool for containers, in particular beverage cans.
- A known tool for forming a container bottom, in particular the bottom of a beverage can is provided with an
ejector 23 which is of sleeve-like shape and arranged between adownholder 14 and adome 12. Theejector 23 is biased by a spring means 26 against the activating direction of a punch 3 with a pre-tensioning force which is substantially lower than the counter force of the downholder. The spring means 26 can be formed by compression springs 27, 28 which are arranged in axial cavities formed in the front face of theejector 23. The ejector force can be changed by changing the compression springs or the number of compression springs. - The deep-draw tool according to the invention includes a plunger with a punch which is adapted to the desired internal shape of the can. In addition, the deep draw tool includes in a second tool part a dome which corresponds to a central concave part of the outer body shape of the can. The plunger and the dome are supported so as to be movable relative to each other wherein preferably one of the two mentioned elements, preferably, the dome is stationary. Associated with the dome is a downholder which is arranged concentrically and supported so as to be movable relative to the dome. The direction of moveability of the down holder is the same as the direction of movement of the plunger. The punch is preferably provided with a shaping surface which faces the bottom of the can. This, for example about conical, shaping surface is preferably adapted to an outer annular zone of the desired bottom shape. The down holder is supported so as to be movable preferably against the force of a draw cushion for example in the form of a pneumatic cylinder. During the deep-draw procedure it holds the bottom at an outer annular area in engagement with the punch and in this way determines or, respectively, controls to a large extent the shaping of the central bottom section.
- The punch is preferably provided with aeration openings to permit the escape of air from the can when the punch moves into the semi-finished can.
- In order to facilitate extraction of the semi-finished can from the deep-draw tool and to prevent its attachment to the deep draw tool, the lower tool part includes an ejector which separates the semi-finished can after completion of the bottom shaping step from the central dome and the downholder ring and brings it into a defined position. The extraction device is moved preferably by a relatively weak spring means. The movement performed, generally by the ejector is preferably greater than the stroke of the downholder. For example, the ejector and the downholder end both at an upper plane when the deep draw tool is open. When the deep draw tool is closed, however, the ejector ends preferably at the lower rim of the shaping surface of the downholder. As a result, the ejector moves with each operating stroke over a length corresponding to the sum of the downholder stroke and the ejector stroke.
- Preferably, the downholder and the ejector are each annular or sleeve-like structures. They are preferably concentric to each other as well as concentric to the dome arranged in the center. The downholder and the ejector are preferably axially movable relative to each other. The spring means provided for activating the ejector is engaged preferably between the downholder and the ejector. Preferably, the spring means comprises several compression springs which are arranged in pockets of the ejector which are provided for that purpose and which are oriented axially.
- Further particulars of advantageous details of exemplary embodiments of the invention are apparent from the following drawings, in which:
-
FIG. 1 is a schematic representation of a machine for forming cans and bottoms of cans; -
FIG. 2 is a tool utilized in the machine ofFIG. 1 for forming container bottoms before the deformation of the container bottom shown in a schematic simplified longitudinal cross-sectional view; -
FIG. 3 is the tool according toFIG. 2 during the transformation of the container bottom shown in a longitudinal cross-sectional view; -
FIG. 4 is the tool according toFIG. 3 after completion of the transformation procedure of the container bottom with the punch retracted from the bottom part shown in a schematic longitudinal cross-sectional view; and, -
FIG. 5 is the tool according toFIG. 3 after completion of the transformation procedure of the container bottom shown in a schematic longitudinal cross-sectional view. -
FIG. 1 shows a machine 1 which is used in the manufacture of cans and which performs at least the step of forming the can bottoms but, if applicable, also the stretching of the cylindrical body—so-called wall ironing. For the deformation of the bottom, the machine 1 includes atool 2 which comprises an upper tool part 3 and a lower tool part 4. The upper tool part is in the form of a punch 3 and mounted to aplunger 5 which executes a back and forth movement as indicated by the arrow 6. The lower tool part 4 on the other hand is at least preferably stationary so that thetool 2 is opened and closed constantly in accordance with the periodic movement of theplunger 5. - The
tool 2 is shown inFIGS. 2 to 4 in different operating stages. The punch 3 has for example a basic essentially cylindrical shape, wherein its lower front side faces the lower tool part 4. The punch 3 and the lower tool part 4 may be arranged side-by-side as shown inFIG. 1 or, alternatively, on top of one another or in any other orientation. The front face 7 of the punch 3 is shaped like the inner surface of the container bottom to be formed. A centralconcave surface area 8, as seen from the outside, is surrounded by an annular rib 9 from which an annular about conical preferably slightly concaveouter surface area 10 extends up to the cylindricalouter surface 11 of the punch 3. - The lower tool part 4 includes, corresponding to the punch 3 with its shapes, in particular the shape of the front face 7, a central
stationary dome 12. Thedome 12 has at its side facing the front face 7, asurface area 13 whose shape corresponds essentially to the shape of thesurface area 8 of the punch 3. Thedome 12 is a separate element inserted into the lower tool part 4 and preferably stationarily supported therein. As illustrated in the schematic representation ofFIG. 2 . - Around the
dome 12, anannular downholder 14 is arranged. At its side facing the punch 3 thedownholder 14 is provided with ashaped surface 15, which is preferably about conical and adapted in its shape to theouter surface 10 of the punch 3. Theshaped surface 15 is provided to apply during the transformation procedure a defined engagement force to anouter area 16 of thebottom 17 of thecontainer 18 which is directed toward the punch 3 in order to control the deformation of the central area of thebottom 17. To this end, thedownholder 14 is movably supported in the lower tool part 4. The direction of movement is indicated by thearrow 19 which also indicates the direction of movement of the punch 3. - In order to apply a defined force to the
downholder 14, adraw cushion 20 is provided, which is, for example, in the form of a pneumatic cylinder. This is in abutment, preferably via several pressure pins 21, 22, with the front face of thedownholder 14 which faces away from the punch 3. - Between the
downholder 14 and thedome 12 there is preferably an annular gap whose diameter is preferably at least essentially the same as that of the rib 9. In this annular gap a sleeve likeejector 23 is arranged which is movable in the direction of thearrow 19. - As shown in
FIG. 5 theejector 23 has an upper annularfront face 24 which is preferably planar and coherent. In its rest position, that is when the deep-draw tool is open, thedownholder 14 and theejector 23 are in their highest possible position. Theejector 23 then abuts anannular shoulder 25 of thedownholder 14. A spring means 26, for example, in the form of a first compression spring 27, a second compression spring 28 and, if necessary additional compression springs which are not shown hold the ejector in that position. This position is shown separately inFIG. 5 . The upperfront face area 24 of the ejector is in this position about at the same level as theupper end 29 of the shapedsurface 15 or slightly thereabove. - The compression springs 27, 28 are supported with one end on the
ejector 23 and with their other end on thedownholder 14, or respectively, a washer 30 mounted to thedownholder 14. InFIG. 2 at the left a cavity cut into theejector 23 for accommodating the first compression spring 27 is provided. The respective cavity for the accommodation of the second compression spring 28 is shown hidden. - The machine 1 and the
tool 2 as described so far operate as follows: - First an unfinished cup-shaped interim blank for forming the
container 18 is inserted into thetool 2 and the punch 3 is introduced into the interior thereof. This state is shown inFIG. 2 . The still essentiallyflat bottom 17 of the container is disposed on theejector 23 and/or thedownholder 14. The punch 3 moves toward the lower tool part 4, that is downwardly inFIG. 2 . Herewith first theejector 23 is pushed downwardly and the compression springs 27, 28 are compressed. The spring compression force however, is substantially smaller than the force of thedraw cushion 20. - Then the outer zone of the bottom 17 is seated on the shaped
surface 15 whereby theouter area 16 of the container is engaged between the punch 3 and thedownholder 14. With further downward movement of the punch 3, the central section of the bottom 17 is drawn over thesurface 13 of thedome 12. At this point, theejector 23 has reached its lowest possible position with regard to thedownholder 14, wherein thefront face 24 has reached or exceeded the lower end 32 of the shapedsurface 15, shown inFIG. 5 by a dashedline 31. The drawing process is now continued in that the punch 3 is further moved downwardly until the bottom 17 is formed between thesurface areas ejector 23 experiences a stroke which corresponds to the sum of the distance between theends 29, 32 of themold surface 15 and the stroke of thedownholder 14. - Subsequently, the punch 3 is moved away from the lower tool part 4 and, as a result, out of the
container 18. Thedownholder 23 in the process last moves the bottom 17 of thecontainer 18 away from thesurface 13. Sticking of thecontainer 18 to thedownholder 14 or respectively the shapedsurface 15 is then prevented by theejector 23. The spring means 26 pushes thecontainer 18 at the rib formed at the bottom thereof upwardly. When the tool 1 is fully opened thecontainer 18 is standing with its fully formed bottom 17 on the upperfront surface 24 of theejector 23 and can be carried away by a parts transport arrangement for further processing. - 1 machine
- 2 tool
- 3 upper tool part, punch
- 4 lower tool part
- 5 plunger
- 6 arrows
- 7 front face
- 8 surface area
- 9 rib
- 10 outer surface
- 11 outer plunger surface
- 12 dome
- 13 surface area
- 14 downholder
- 15 shaped surface
- 16 outer area of the bottom 17 of the
container 18 - 17 bottom
- 18 container
- 19 arrow
- 20 draw cushion
- 21 pressure pin
- 22 pressure pin
- 23 ejector
- 24 front face
- 25 annular shoulder
- 26 spring means
- 27 first compression spring
- 28 second compression spring
- 29 end
- 30 washer
- 31 line
- 32 end
Claims (10)
1. A deep draw tool (2) for forming container bottoms (17) in particular bottoms of two-part beverage cans or aerosol cans, the deep draw tool (2) having open and closed positions comprising:
a first tool part (3) including a punch (3) having a shape adapted to the desired inner shape of a can,
a second tool part (4) including a dome (12) and an annular downholder (14) arranged concentrically with the dome (12) and supported movably relative to the dome (12) and subjected to a downholder (14) force,
an ejector (23) which is annular and arranged concentrically around the dome (12), and
a spring means (26) resiliently supporting the ejector (23).
2. The deep draw tool according to claim 1 , wherein the ejector (23) is biased toward the punch (3) by an ejection force which is lower than the downholder (14) force.
3. The deep draw tool according to claim 1 , wherein the ejector (23) is supported on the downholder (14) via the spring means (26).
4. The deep draw tool according to claim 1 , wherein the spring means (26) is formed by a number of compression springs (27, 28) which are arranged in axial bores of the ejector.
5. The deep draw tool according to claim 1 , wherein the downholder (14) is associated with a pneumatic cylinder (20) for generating the downholder force.
6. The deep draw tool according to claim 1 , wherein the ejector (23) has an ejector stroke, the downholder (14) has a downholder (14) stroke and the ejector (23) stroke is greater than the downholder (14) stroke.
7. The deep draw tool according to claim 1 , wherein the ejector (23) has an upper annular surface (24), the downholder (14) has an upper shaped surface (15) and the upper annular surface (24) is disposed at the upper end (29) of the shaped surface (15) when the deep draw tool (2) is the open position.
8. The deep draw tool according to claim 7 , wherein the annular surface (24) is disposed at the lower edge (32) of the shaped surface (15) when the deep-draw tool (2) is in the closed position.
9. The deep draw tool according to claim 1 , wherein the downholder (14) and the ejector (23) are in the form of concentric rings which are axially adjustable relative to each other.
10. The deep draw tool according to claim 1 , wherein the ejector (23) is arranged between the downholder (14) and the dome (12).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010000235.6 | 2010-01-27 | ||
DE102010000235A DE102010000235B4 (en) | 2010-01-27 | 2010-01-27 | Deep-drawing tool for forming container bottoms |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110179847A1 true US20110179847A1 (en) | 2011-07-28 |
Family
ID=44167976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/931,190 Abandoned US20110179847A1 (en) | 2010-01-27 | 2011-01-26 | Tool for forming the bottom of cans |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110179847A1 (en) |
EP (1) | EP2359950A3 (en) |
JP (1) | JP2011152585A (en) |
DE (1) | DE102010000235B4 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102641967A (en) * | 2012-05-04 | 2012-08-22 | 太仓市弧螺机电有限公司 | Elastic ejector device |
CN104550477A (en) * | 2014-12-31 | 2015-04-29 | 广州荣鑫容器有限公司 | High-strength thin-wall aluminum alloy ring-pull can forming die |
CN106270266A (en) * | 2016-08-30 | 2017-01-04 | 广东韩江轻工机械有限公司 | Two piece can body production technology |
US20170291209A1 (en) * | 2015-09-02 | 2017-10-12 | Pride Engineering, Llc | Floating clamp ring assembly |
CN108176749A (en) * | 2017-12-18 | 2018-06-19 | 广东寰球智能科技有限公司 | A kind of mental package stretch forming press and its noise reduction detection method based on cloud platform |
CN110252925A (en) * | 2019-07-25 | 2019-09-20 | 安徽安簧机械股份有限公司 | Piston head forging mold with annular compound post rod mechanism |
CN111229967A (en) * | 2019-05-17 | 2020-06-05 | 旭精机工业株式会社 | Press machine and press forming method |
US20220305543A1 (en) * | 2017-04-25 | 2022-09-29 | Crown Packaging Technology, Inc. | Can base forming |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015119174A1 (en) * | 2015-11-06 | 2017-05-11 | Schuler Pressen Gmbh | Forming device and method for forming an inner edge of a blanket ring |
CN105710252A (en) * | 2016-04-14 | 2016-06-29 | 句容五星机械制造有限公司 | Improved automatic discharging mechanism |
CN108435952B (en) * | 2018-03-23 | 2019-05-24 | 安徽义良罐业科技有限公司 | A kind of tea can processing punching press pedestal |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382737A (en) * | 1981-03-05 | 1983-05-10 | Gulf & Western Manufacturing Company | Can end making apparatus |
US5016463A (en) * | 1988-02-05 | 1991-05-21 | Coors Brewing Company | Apparatus and method for forming can bottoms |
US5272902A (en) * | 1990-09-06 | 1993-12-28 | Preferred Machining Corporation | Domer assembly for metal containers with nitrogen pressure source |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4826382A (en) * | 1988-01-11 | 1989-05-02 | Redicon Corporation | Method and apparatus for forming container with profiled bottom |
JPH089077B2 (en) * | 1989-06-01 | 1996-01-31 | 東洋製罐株式会社 | Molding method for the bottom of a one-piece molded can |
GB9719549D0 (en) | 1997-09-16 | 1997-11-19 | Metal Box Plc | Base forming |
JPH11104764A (en) * | 1997-09-30 | 1999-04-20 | Mitsubishi Materials Corp | Method and device for manufacturing can |
-
2010
- 2010-01-27 DE DE102010000235A patent/DE102010000235B4/en not_active Expired - Fee Related
-
2011
- 2011-01-05 EP EP11150228.2A patent/EP2359950A3/en not_active Withdrawn
- 2011-01-26 JP JP2011013528A patent/JP2011152585A/en not_active Withdrawn
- 2011-01-26 US US12/931,190 patent/US20110179847A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382737A (en) * | 1981-03-05 | 1983-05-10 | Gulf & Western Manufacturing Company | Can end making apparatus |
US5016463A (en) * | 1988-02-05 | 1991-05-21 | Coors Brewing Company | Apparatus and method for forming can bottoms |
US5272902A (en) * | 1990-09-06 | 1993-12-28 | Preferred Machining Corporation | Domer assembly for metal containers with nitrogen pressure source |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102641967A (en) * | 2012-05-04 | 2012-08-22 | 太仓市弧螺机电有限公司 | Elastic ejector device |
CN104550477A (en) * | 2014-12-31 | 2015-04-29 | 广州荣鑫容器有限公司 | High-strength thin-wall aluminum alloy ring-pull can forming die |
US20170291209A1 (en) * | 2015-09-02 | 2017-10-12 | Pride Engineering, Llc | Floating clamp ring assembly |
US10532390B2 (en) * | 2015-09-02 | 2020-01-14 | Pride Engineering, Llc | Floating clamp ring assembly |
CN106270266A (en) * | 2016-08-30 | 2017-01-04 | 广东韩江轻工机械有限公司 | Two piece can body production technology |
US20220305543A1 (en) * | 2017-04-25 | 2022-09-29 | Crown Packaging Technology, Inc. | Can base forming |
CN108176749A (en) * | 2017-12-18 | 2018-06-19 | 广东寰球智能科技有限公司 | A kind of mental package stretch forming press and its noise reduction detection method based on cloud platform |
CN111229967A (en) * | 2019-05-17 | 2020-06-05 | 旭精机工业株式会社 | Press machine and press forming method |
CN110252925A (en) * | 2019-07-25 | 2019-09-20 | 安徽安簧机械股份有限公司 | Piston head forging mold with annular compound post rod mechanism |
Also Published As
Publication number | Publication date |
---|---|
EP2359950A3 (en) | 2014-01-22 |
EP2359950A2 (en) | 2011-08-24 |
DE102010000235B4 (en) | 2012-01-26 |
JP2011152585A (en) | 2011-08-11 |
DE102010000235A1 (en) | 2011-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20110179847A1 (en) | Tool for forming the bottom of cans | |
CN105722618B (en) | Forming metal container and method for being manufactured canister | |
US9334185B2 (en) | Method and device for manufacturing a hollow glass item | |
US20120266644A1 (en) | Device and method for manufacturing a can body for an aerosol can | |
US10464116B2 (en) | Method of manufacturing plate-like molded body having a plurality of thickened portions, and plate-like molded body having a plurality of thickened portions | |
CN104607540A (en) | Can cap multi-level composite air pressure reverse mold and forming method | |
JP2013517137A5 (en) | ||
RU2008141157A (en) | DEVICES AND METHOD FOR PRODUCING TANKS | |
TWI529057B (en) | Demolding of ophthalmic lens mold assemblies during the manufacture thereof | |
US8869563B2 (en) | Device and method for marking the inside of a hollow glass item | |
US10654212B2 (en) | Liquid blow molding apparatus and liquid blow molding method | |
AU8279582A (en) | Metal can bodies | |
WO2019081062A3 (en) | Method for thermoforming a film, molding tool, thermoforming tool, installation for thermoforming, capsule body, brewing capsule and container | |
US9849501B2 (en) | Multiple blow molded metallic container sidewalls | |
DK2558227T3 (en) | A process for the manufacture of can bodies having axial ribs and a bottom with a step-like shoulder | |
US10407203B2 (en) | Multi blow molded metallic container | |
EP0679141A1 (en) | Apparatus for removing hollow articles from a mould. | |
CN104718164A (en) | Process and machine for manufacturing a hollow article made of thin glass | |
US9782823B2 (en) | Forging device for the production of a piston blank, and method for the production of the piston blank by means of said forging device | |
KR20160147948A (en) | Method and apparatus for forming a can end with controlled thinning of formed portions of the can end | |
CN204396682U (en) | A kind of cover multistage composite air pressure reverse molding mould | |
US10118330B2 (en) | Molding unit comprising mold bottom actuation means supported by a fixed holder | |
CN208303627U (en) | A kind of arrangements for automotive doors punch-forming mold | |
CN111229932B (en) | Composite cover cup forming die and forming method | |
CN103200515A (en) | Extrusion die of internal magnetic loudspeaker U iron |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SCHULER PRESSEN GMBH & CO. KG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PICK, GERHARD;GAEBGES, MARTIN;REEL/FRAME:025728/0859 Effective date: 20110119 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |