CA2063863A1 - Device for forming a constriction on the open end zone of a metal can - Google Patents
Device for forming a constriction on the open end zone of a metal canInfo
- Publication number
- CA2063863A1 CA2063863A1 CA002063863A CA2063863A CA2063863A1 CA 2063863 A1 CA2063863 A1 CA 2063863A1 CA 002063863 A CA002063863 A CA 002063863A CA 2063863 A CA2063863 A CA 2063863A CA 2063863 A1 CA2063863 A1 CA 2063863A1
- Authority
- CA
- Canada
- Prior art keywords
- support member
- roller
- freely
- constriction
- axial direction
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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
- B21D51/2615—Edge treatment of cans or tins
- B21D51/2638—Necking
-
- 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
- B21D51/2615—Edge treatment of cans or tins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Discharge Heating (AREA)
- Spark Plugs (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
X Sch/EN/122p, TDV
ABSTRACT
A device for forming a constriction on the open end zone of a metal can with a cylindrical body, comprising:
(1) a support member for supporting the bottom of a can and for pushing displacement thereof in axial direction:
(2) an annular anvil placed coaxially of this support member, on the side of which facing the support member an internal modelling surface is present which in the direction away from the support member has a form adapted to the desired shape of the constriction; and (3) a freely-rotating roller having a form adapted to the shape of the modelling surface, which roller can press the end zone of a positioned can forcefully against the modelling surface, which roller is carried by a support member which is driven by drive means in a circular path concentric to the annular modelling surface, wherein the axis of rotation of the freely-rotating roller extends at least approximately in the said axial direction.
*****
ABSTRACT
A device for forming a constriction on the open end zone of a metal can with a cylindrical body, comprising:
(1) a support member for supporting the bottom of a can and for pushing displacement thereof in axial direction:
(2) an annular anvil placed coaxially of this support member, on the side of which facing the support member an internal modelling surface is present which in the direction away from the support member has a form adapted to the desired shape of the constriction; and (3) a freely-rotating roller having a form adapted to the shape of the modelling surface, which roller can press the end zone of a positioned can forcefully against the modelling surface, which roller is carried by a support member which is driven by drive means in a circular path concentric to the annular modelling surface, wherein the axis of rotation of the freely-rotating roller extends at least approximately in the said axial direction.
*****
Description
la 2~63863 X Sch/EN/122p, TDV
DEVIC~ FOR FORMIN~ A CON8TRICTION ON
TH~ OPEN ~ND ZONE OF a META~ CAN
The invention relates to an operation having the object of providing the open mouth zone of a metal can with a constricted end portion.
For this purpose the invention provide~ a device for 5 forming a constriction on the open end zone of a metal can with a cylindrical body, comprising:
(1) a support member for supporting the bottom of a can and pushing displacement thereof in axial direction;
DEVIC~ FOR FORMIN~ A CON8TRICTION ON
TH~ OPEN ~ND ZONE OF a META~ CAN
The invention relates to an operation having the object of providing the open mouth zone of a metal can with a constricted end portion.
For this purpose the invention provide~ a device for 5 forming a constriction on the open end zone of a metal can with a cylindrical body, comprising:
(1) a support member for supporting the bottom of a can and pushing displacement thereof in axial direction;
(2) an annular anvil placed coaxially of this support member, on the side of which facing the support member an internal modelling surface is present which in the direction away from the support member has a form adapted to the desired shape of the constriction; and (3) a freely-rotating roller having a form adapted to the shape of the modelling surface, which roller can press the end zone of a positioned can forcefully against the modelling surface, which roller is carried by a support member which is driven by drive means in a circular path concentric to the annular modelling surface, wherein the axis of rotation of the freely-rotating roller extend~ at least approximately in the said axial direction.
During use of the device a rolling operation takes place wherein the can for processing i8 positioned relative 25~to~the annular anvil such that the end rim of the can comes to li- against the anvil. The end rim of the can is subse-quently pressed forcibly against the anvil by a fully peri-pheral rolling operation by means of the freely-rotating roller. The shapes of the anvil and the freely-rotating 30~ roller are mutually adapted and correspond with the shape of the constriction to be obtained.
A gradual shifting of the can in axial direction ta~es ; place during the operation.
:
, ' . ' .
The operation is terminated at the moment when the constriction has reached the desired length. The shape is determined by the form of the anvil and the freely-rotating roller.
S The freely-rotating roller can have a rotational centre line with the same direction as that of the can. The device can however advantageously have the feature that the rotational axis of the freely-rotating roller lies in a tangential plane and forms a small angle with the axial 10 direction. A very effective ironing is achieved herewith and the material ~seeks~ a path between the ring and the roller.
Thus achieved is that minimal axial forces are exerted on the can wall.
A particular embodiment has the feature that the angle 15 has a value in the order of magnitude of 0.5-.
In a practical embodiment the bearing construction for the free}y-rotating rolle~ revolves with respect to the fixedly disposed can. This permits a very simple construc-tion. It will be apparent that the complementary arrangement 20 is also possible. What is important here is the relative movement of thé roller relative to the can.
The roller and the anvil must be very hard. For an acceptable stand-time use can for instance be made of hard-metal or another material with a very high wear resistance 25 and hardnes~.
A certain flexibility in the construction can be useful in order to properly position the co-acting surfaces relative to one another under all conditions. Excessive rigidity in the construction can result in extremely great forces which 30 could have an ad w rse effect on the useful llfe of the device.
The annexed drawing shows a~device according to the lm ention. In the drawing: !
figure 1 6hows a cross sectional view of a device 35 according to the invention:
figure 2 6hows on enlarged scale the detail II in figure 1:
figure 3 shows a cross section through the anvil and the freely-rotating roller in the situation where a modelling operation is about to take place;
figure 4 shows a detail of an end wall of a can after 5 processing by the device according to the invention: and figure 5 i8 a perspective view of a can provided with a constriction by the device according to figure 1.
Figures 1 and 2 show a device 1 for forming a con-striction 2 on the open end zone of a metal can 3 with a 10 cylindrical body, which device comprises:
a support member 4 for supporting the bottom 5 of the can 3 and for pushing displacement thereof in axial direction 6 by means of a pushing member 7 which is controlled in suitable manner by a control unit (not shown);
an annular anvil 8 placed coaxially of this support member 4, on the inner side of which facing the support member 4 an internal modelling surface 9 is present which in the direction away from the support member 4 has a form adapted to the desired ~hape of the constriction 2; and a freely-rotating roller 10 likewise having a form adapted to that of the desired constriction 2 and therefore to the shape of the modelling sur~ace 9, which roller 10 can press the end zone of the positioned can 3 forcefully against the modelling surface 9, which roller 10 is carried by a 25 support member 11 which form~ part of a rotor 12 with an externally placed pinion 13 that co-acts with a drive gear wheel 14 which is connected to a drive motor (not drawn) such that the rotor 12 can thereby be set into a rotating move-ment, wherein the freely-rotating roller 10 is driven in a : 30 circular path concentric to the annular modelling surface 9, wherein the axis of rotation 15 extends at least approximate-; - ly in the said axial direction 6.
The support member 4 is guided slidably in axial direction in a cylinder bloc~ 16 which forms part of a Prame 35 17 in which the anvil ring i8 clamped and to which the rotor 12 is rotatably connected by means of a bearing unit 18.
The support member 11 is pivotally connected via a pivot shaft 19 to the rotor 12. The views according to figu-r~ nd 2 should be und-r-tood such tbat in the ituation 2~63863 shown therein the freely-rotating roller 10 engages forcibly in a direction containing at least a considerable radial component. The rotational sense of rotor 12 i8 indicated by ~0 .
The axis of rotation 15 of the freely-rotating roller 10 lies substantially in a tangential plane and forms an angle of roughly 0.5~ with the said axial direction 6. Figu-res 1 and 2 show this angle in a somewhat exaggerated manner for the sake of clarity. ~n order to obtain a correct angle 10 the rotor 12 i8 supported on the one fiide by a pre6sure spring 21 and is placed in a sloping po~ition counter to the action of the pressure spring by means of an adjusting screw 22 protruding outside the rotor 12. The freely-rotating roller 10 is supported rotatably by the support member 11 by 15 means of a roller bearing 24.
Figure 3 shows the co-acting shapes of the modelling surface 9 of the anvil 8 and the roller 10. In the situation shown in figure 3 a can 3 is introduced into the transition zone between the anvil 8 and roller 10. Due to the rolling 20 movement of roller 10 over the annular inner surface of the anvil 8 the can i~ pulled inward with it~ open end zone 23, whereby the con~triction 2 is formed, as is shown in figure 4.
*****
During use of the device a rolling operation takes place wherein the can for processing i8 positioned relative 25~to~the annular anvil such that the end rim of the can comes to li- against the anvil. The end rim of the can is subse-quently pressed forcibly against the anvil by a fully peri-pheral rolling operation by means of the freely-rotating roller. The shapes of the anvil and the freely-rotating 30~ roller are mutually adapted and correspond with the shape of the constriction to be obtained.
A gradual shifting of the can in axial direction ta~es ; place during the operation.
:
, ' . ' .
The operation is terminated at the moment when the constriction has reached the desired length. The shape is determined by the form of the anvil and the freely-rotating roller.
S The freely-rotating roller can have a rotational centre line with the same direction as that of the can. The device can however advantageously have the feature that the rotational axis of the freely-rotating roller lies in a tangential plane and forms a small angle with the axial 10 direction. A very effective ironing is achieved herewith and the material ~seeks~ a path between the ring and the roller.
Thus achieved is that minimal axial forces are exerted on the can wall.
A particular embodiment has the feature that the angle 15 has a value in the order of magnitude of 0.5-.
In a practical embodiment the bearing construction for the free}y-rotating rolle~ revolves with respect to the fixedly disposed can. This permits a very simple construc-tion. It will be apparent that the complementary arrangement 20 is also possible. What is important here is the relative movement of thé roller relative to the can.
The roller and the anvil must be very hard. For an acceptable stand-time use can for instance be made of hard-metal or another material with a very high wear resistance 25 and hardnes~.
A certain flexibility in the construction can be useful in order to properly position the co-acting surfaces relative to one another under all conditions. Excessive rigidity in the construction can result in extremely great forces which 30 could have an ad w rse effect on the useful llfe of the device.
The annexed drawing shows a~device according to the lm ention. In the drawing: !
figure 1 6hows a cross sectional view of a device 35 according to the invention:
figure 2 6hows on enlarged scale the detail II in figure 1:
figure 3 shows a cross section through the anvil and the freely-rotating roller in the situation where a modelling operation is about to take place;
figure 4 shows a detail of an end wall of a can after 5 processing by the device according to the invention: and figure 5 i8 a perspective view of a can provided with a constriction by the device according to figure 1.
Figures 1 and 2 show a device 1 for forming a con-striction 2 on the open end zone of a metal can 3 with a 10 cylindrical body, which device comprises:
a support member 4 for supporting the bottom 5 of the can 3 and for pushing displacement thereof in axial direction 6 by means of a pushing member 7 which is controlled in suitable manner by a control unit (not shown);
an annular anvil 8 placed coaxially of this support member 4, on the inner side of which facing the support member 4 an internal modelling surface 9 is present which in the direction away from the support member 4 has a form adapted to the desired ~hape of the constriction 2; and a freely-rotating roller 10 likewise having a form adapted to that of the desired constriction 2 and therefore to the shape of the modelling sur~ace 9, which roller 10 can press the end zone of the positioned can 3 forcefully against the modelling surface 9, which roller 10 is carried by a 25 support member 11 which form~ part of a rotor 12 with an externally placed pinion 13 that co-acts with a drive gear wheel 14 which is connected to a drive motor (not drawn) such that the rotor 12 can thereby be set into a rotating move-ment, wherein the freely-rotating roller 10 is driven in a : 30 circular path concentric to the annular modelling surface 9, wherein the axis of rotation 15 extends at least approximate-; - ly in the said axial direction 6.
The support member 4 is guided slidably in axial direction in a cylinder bloc~ 16 which forms part of a Prame 35 17 in which the anvil ring i8 clamped and to which the rotor 12 is rotatably connected by means of a bearing unit 18.
The support member 11 is pivotally connected via a pivot shaft 19 to the rotor 12. The views according to figu-r~ nd 2 should be und-r-tood such tbat in the ituation 2~63863 shown therein the freely-rotating roller 10 engages forcibly in a direction containing at least a considerable radial component. The rotational sense of rotor 12 i8 indicated by ~0 .
The axis of rotation 15 of the freely-rotating roller 10 lies substantially in a tangential plane and forms an angle of roughly 0.5~ with the said axial direction 6. Figu-res 1 and 2 show this angle in a somewhat exaggerated manner for the sake of clarity. ~n order to obtain a correct angle 10 the rotor 12 i8 supported on the one fiide by a pre6sure spring 21 and is placed in a sloping po~ition counter to the action of the pressure spring by means of an adjusting screw 22 protruding outside the rotor 12. The freely-rotating roller 10 is supported rotatably by the support member 11 by 15 means of a roller bearing 24.
Figure 3 shows the co-acting shapes of the modelling surface 9 of the anvil 8 and the roller 10. In the situation shown in figure 3 a can 3 is introduced into the transition zone between the anvil 8 and roller 10. Due to the rolling 20 movement of roller 10 over the annular inner surface of the anvil 8 the can i~ pulled inward with it~ open end zone 23, whereby the con~triction 2 is formed, as is shown in figure 4.
*****
Claims (3)
1. Device for forming a constriction on the open end zone of a metal can with a cylindrical body, comprising:
(1) a support member for supporting the bottom of a can and for pushing displacement thereof in axial direction;
(2) an annular anvil placed coaxially of this support member, on the side of which facing the support member an internal modelling surface is present which in the direction away from the support member has a form adapted to the desired shape of the constriction; and (3) a freely-rotating roller having a form adapted to the shape of the modelling surface, which roller can press the end zone of a positioned can forcefully against the modelling surface, which roller is carried by a support member which is driven by drive means in a circular path concentric to the annular modelling surface, wherein the axis of rotation of the freely-rotating roller extends at least approximately in the said axial direction.
(1) a support member for supporting the bottom of a can and for pushing displacement thereof in axial direction;
(2) an annular anvil placed coaxially of this support member, on the side of which facing the support member an internal modelling surface is present which in the direction away from the support member has a form adapted to the desired shape of the constriction; and (3) a freely-rotating roller having a form adapted to the shape of the modelling surface, which roller can press the end zone of a positioned can forcefully against the modelling surface, which roller is carried by a support member which is driven by drive means in a circular path concentric to the annular modelling surface, wherein the axis of rotation of the freely-rotating roller extends at least approximately in the said axial direction.
2. Device as claimed in claim 1, characterized in that the rotational axis of the freely-rotating roller lies in a tangential plane and forms a small angle with the axial direction.
3. Device as claimed in claim 2, characterized in that the angle has a value in the order of magnitude of 0.5°.
*****
*****
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL9100574 | 1991-04-03 | ||
| NL9101493 | 1991-09-04 | ||
| NL9100574 | 1991-09-04 | ||
| NL9101493A NL9101493A (en) | 1991-04-03 | 1991-09-04 | Device for forming a narrowed section on the open end zone of a metal bush (sleeve) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2063863A1 true CA2063863A1 (en) | 1992-10-04 |
Family
ID=26646833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002063863A Abandoned CA2063863A1 (en) | 1991-04-03 | 1992-03-24 | Device for forming a constriction on the open end zone of a metal can |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0507380B1 (en) |
| JP (1) | JPH0687045A (en) |
| AT (1) | ATE129172T1 (en) |
| AU (1) | AU644728B2 (en) |
| CA (1) | CA2063863A1 (en) |
| CZ (1) | CZ282918B6 (en) |
| DE (1) | DE69205473T2 (en) |
| DK (1) | DK0507380T3 (en) |
| ES (1) | ES2089361T3 (en) |
| GR (1) | GR3018589T3 (en) |
| PL (1) | PL168821B1 (en) |
| RU (1) | RU2107198C1 (en) |
| SK (1) | SK279427B6 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813267A (en) * | 1996-02-28 | 1998-09-29 | Crown Cork & Seal Company, Inc. | Methods and apparatus for reducing flange width variations in die necked container bodies |
| US6032502A (en) * | 1998-08-31 | 2000-03-07 | American National Can Co. | Apparatus and method for necking containers |
| AR027371A1 (en) | 2000-02-10 | 2003-03-26 | Envases Uk Ltd | DEFORMATION OF SLIM WALL BODIES |
| IT1319569B1 (en) * | 2000-12-18 | 2003-10-20 | Frattini Costr Mecc | DEVICE FOR THE DEFORMATION OF EXTRUDED OR DRAWN BODIES. |
| CN110871226A (en) * | 2018-08-30 | 2020-03-10 | 爱孚迪(上海)制造***工程有限公司 | Pre-binding device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1842447A (en) * | 1929-02-13 | 1932-01-26 | American Can Co | Apparatus for preparing drum head can bodies |
| US3754424A (en) * | 1972-05-17 | 1973-08-28 | Gulf & Western Ind Prod Co | Method for necking-in can bodies |
| US3898828A (en) * | 1973-10-01 | 1975-08-12 | American Can Co | Die assembly and method for interior roll-necking-in a tubular member |
| DE2847736A1 (en) * | 1978-11-03 | 1980-05-22 | Schuler Gmbh L | DEVICE FOR PRODUCING A SICK ON THE CIRCUMFERENCE OF A HOLLOW CYLINDER |
| US4450700A (en) * | 1982-11-15 | 1984-05-29 | Reynolds Metals Company | Method and apparatus for necking and flanging container bodies |
-
1992
- 1992-03-23 EP EP92200838A patent/EP0507380B1/en not_active Expired - Lifetime
- 1992-03-23 DE DE69205473T patent/DE69205473T2/en not_active Expired - Fee Related
- 1992-03-23 DK DK92200838.8T patent/DK0507380T3/en active
- 1992-03-23 ES ES92200838T patent/ES2089361T3/en not_active Expired - Lifetime
- 1992-03-23 AT AT92200838T patent/ATE129172T1/en not_active IP Right Cessation
- 1992-03-24 CA CA002063863A patent/CA2063863A1/en not_active Abandoned
- 1992-04-01 PL PL92294070A patent/PL168821B1/en unknown
- 1992-04-02 JP JP4080691A patent/JPH0687045A/en active Pending
- 1992-04-02 AU AU13996/92A patent/AU644728B2/en not_active Ceased
- 1992-04-02 RU SU5011335A patent/RU2107198C1/en active
- 1992-04-03 CZ CS921018A patent/CZ282918B6/en not_active IP Right Cessation
- 1992-04-03 SK SK1018-92A patent/SK279427B6/en unknown
-
1996
- 1996-01-03 GR GR960400006T patent/GR3018589T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU644728B2 (en) | 1993-12-16 |
| ATE129172T1 (en) | 1995-11-15 |
| AU1399692A (en) | 1992-10-08 |
| EP0507380B1 (en) | 1995-10-18 |
| PL168821B1 (en) | 1996-04-30 |
| GR3018589T3 (en) | 1996-04-30 |
| SK279427B6 (en) | 1998-11-04 |
| CS101892A3 (en) | 1992-10-14 |
| ES2089361T3 (en) | 1996-10-01 |
| DK0507380T3 (en) | 1995-11-27 |
| RU2107198C1 (en) | 1998-03-20 |
| CZ282918B6 (en) | 1997-11-12 |
| DE69205473D1 (en) | 1995-11-23 |
| PL294070A1 (en) | 1993-03-08 |
| EP0507380A1 (en) | 1992-10-07 |
| DE69205473T2 (en) | 1996-03-14 |
| JPH0687045A (en) | 1994-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |