CN1202844A - Systems and methods for making decorative shaped metal cans - Google Patents
Systems and methods for making decorative shaped metal cans Download PDFInfo
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- CN1202844A CN1202844A CN96198588A CN96198588A CN1202844A CN 1202844 A CN1202844 A CN 1202844A CN 96198588 A CN96198588 A CN 96198588A CN 96198588 A CN96198588 A CN 96198588A CN 1202844 A CN1202844 A CN 1202844A
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- tank body
- body blank
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- 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
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- 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
- B21D51/2646—Of particular non cylindrical shape, e.g. conical, rectangular, polygonal, bulged
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Stackable Containers (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
A method of manufacturing a metallic can body (24) that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank (10) that has a sidewall that is of a substantially constant diameter; providing a mold unit (38) that has at least one mold wall (46) that defines a mold cavity conforming a desired final shape of the can body (24); positioning the can body blank (10) within the mold cavity (46); and supplying a pressurized fluid into the mold cavity so that the can body blank (10) is forced by pressure against the mold wall (46), causing the can body blank (10) to assume the desired final shape of the can body (24). Axial compression is preferably applied to the can body blank in order to reduce internal stresses during molding of the container. A second embodiment includes steps of radially deforming the can body blank in selected areas by selected amounts to achieve an intermediate can body that is radially modified, but is still symmetrical about its axis; and superimposing a preselected pattern of mechanical deformations that have an axial component onto the intermediate can body. Related apparatus and processes are also disclosed.
Description
Background of invention
1. invention field
The present invention relates generally to the consumer package field, relate more specifically to be generally used for packing the metal can of soft drink, other beverage, food and aerosol product, as cylinder of steel and aluminium pot.
2. the description of prior art and most up-to-date techniques
The metal can of using for soft drink, other beverage and other material is widely used in North America and all over the world certainly.Assignee's U.S.'s Philadelphia Krona stopper of the present invention and (the CrownCork ﹠amp of seal company; Seal Company) is the design maximum producer and the manufacturer of this type of jar tube in the world.
The technology of manufacturing and package metals jar is constantly development along with the improvement of process modification, new material and manufacturing technology.Other motive force of the technical development in this field comprises for example market sale target of the major company of soft drink of the character of cost of material, new material to be packaged and manufacturing and dispensing consumer products.
Sometimes canister is made characteristic non-standard cylinder tank shape, make it become the part of production marketing appearance become rule of origin or character another the indication, be favourable.But known to the inventor, also nobody develops a kind of practical technique and makes a kind of so erose jar, and its output and speed of production can be introduced market with a kind of like this product actually.
Nineteen sixty discloses a kind of system and technology that Pneumatic pressure is used to reshape jar for the United States Patent (USP) 3,224,239 of the Hansson in mid-term.Piston of this technology utilization forces compressed air to enter to be placed in the jar in the mould.This compression sky forces tank skin plasticity to flow, and presents the form of mould up to tank skin.
Known to the inventor, also never be successfully used to draw and make reshaping of the flat jar of wall pressure such as disclosed technology in the Hansson patent.One of reason is that the stress that produces in tank skin when distortion can cause defective, and these defectives may cause damage, as local ironing, split or break.The danger of ironing can be spent by the increase tank skin and reduce most, but this can make the production cost of the jar that is shaped too high.The danger of splitting or breaking can reduce by annealing and so on technology, but can reduce the toughness and the mechanical damage resistance of final products.
Therefore, need a kind of improved equipment and technology to make the shaping metal can, this technology be effectively, efficient and cheap, especially with so far for this purpose and the technology of development is compared, and reduced to be shaped jar owing to ironing, the tendency of splitting or breaking and losing efficacy.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of improved equipment and technology and make the shaping metal can, this technology be effectively, efficient and cheap, especially with so far for this purpose and the technology of development is compared, and guarantee to overcome internal stress in the jar that may cause ironing, split or break.
In order to reach above and other objects of the present invention, according to a first aspect of the invention, a kind ofly make characteristic shape and comprise the following steps: that (a) provides the tank body blank so that increase the method for the metal can of client's visual image; (b) provide a die device, this die device has at least one mold wall that forms mold cavity, this mold cavity meets the net shape of wanting of tank body, this die device is by constituting more than parts, in these parts at least one can move to another parts along the direction of the axis that is arranged essentially parallel to the tank body blank during operation, this mold wall comprises the part and the outwardly directed part of inwardly stretching out, (c) the tank body blank is placed in the mold cavity, so that utilize the inside extension precommpression tank body blank of mold wall; (d) a kind of charging fluid is supplied in the mold cavity, make the tank body blank be stressed and near mold wall, make the tank body blank present desired tank body net shape, the precommpression of carrying out in the step (c) has reduced as far as possible to obtaining the required outside deflection of tank body net shape; (e) basically with step (d) side by side, move one of them mold component at least towards another parts vertically.
According to a second aspect of the invention, a kind ofly make characteristic shape and comprise the following steps: that (a) makes the tank body blank so that increase the method for the metal can of client's visual image; (b) at least a portion of tank body blank is carried out part annealing at least, make the annealing portion of tank body blank improve ductility thus; (c) provide a die device, this die device has at least one mold wall that forms mold cavity, this mold cavity meets the net shape of wanting of tank body, this die device is by constituting more than parts, and at least one in these parts can move to another parts along the direction of the axis that is arranged essentially parallel to the tank body blank during operation; (d) the tank body blank is placed in the mold cavity; (e) charging fluid is supplied in the mold cavity, make the tank body blank be stressed and, make the tank body blank present desired tank body net shape near mold wall; (f) basically with step (e) side by side, move one of them mold component at least towards another parts vertically.
According to a third aspect of the invention we, a kind of be used to make characteristic shape so that increase the equipment of the metal can of client's visual image comprise: make the structure that the tank body blank is used; Molded structure, comprise a die device, this die device has at least one mold wall that limits mold cavity, this mold cavity meets desired tank body net shape, described mold wall comprises the part and the outwardly directed part of inwardly stretching out, this die device is by constituting more than parts, and at least one parts can move to another parts along the direction of the axis that is arranged essentially parallel to the tank body blank during operation; Installing structure is used for the tank body blank is placed in the mold cavity, so that utilize the inside extension precommpression tank body blank of mold wall; The fluid supply structure, be used for a charging fluid is supplied to mold cavity, make the tank body blank be stressed and, make the tank body blank have desired tank body net shape that it is to obtain the required outside deflection of tank body net shape that this precommpression has reduced as far as possible near mold wall; Axially reduce structure, be used for moving at least one mold component towards another parts vertically.
According to a forth aspect of the invention, a kind of be used to make characteristic shape so that increase the equipment of the metal can of client's visual image comprise: make the structure that the tank body blank is used; At least a portion of tank body blank is carried out the structure of part annealing usefulness at least, make the annealing portion of tank body blank improve ductility thus; Molded structure, comprise a die device, this die device has at least one mold wall that limits mold cavity, this mold cavity meets desired tank body net shape, this die device is by constituting more than parts, and at least one in these parts can move to another parts along the direction of the axis that is arranged essentially parallel to the tank body blank during operation; Installing structure is used for the tank body blank is placed in the mold cavity; The fluid supply structure is used for a charging fluid is supplied to mold cavity, makes the tank body blank be stressed and near mold wall, makes the tank body blank present desired tank body net shape; Axially reduce structure, be used for moving at least one mold component towards another parts vertically.
Appended its a part of claims of composition of this paper particularly point out above-mentioned and other various advantages and the novel features that forms feature of the present invention.But, in order to understand the present invention, its advantage and application target better, should be with reference to accompanying drawing that forms this paper another part and the description of following, illustration and describe a preferred embodiment of the present invention wherein.
The accompanying drawing summary
Fig. 1 is the tank body blank made according to a preferred embodiment of the present invention or the sectional view of performing member;
Fig. 2 is the side elevation view of the shaping tank body of a preferred embodiment of the present invention;
Fig. 3 is a kind of schematic diagram of equipment of the shaping tank body that is used to make the preferred embodiment of the present invention;
Fig. 4 is the partial section that is in the die device under first state in the equipment shown in Figure 3;
Fig. 5 is the partial section that is in the die device under second state in the equipment shown in Figure 3;
Fig. 6 is the schematic diagram of the pressure feed equipment that die device is used among Fig. 3;
Fig. 7 is the schematic diagram of the precommpression step of carrying out in Fig. 3 equipment;
Fig. 8 is the schematic diagram of belling edge step in the method for carrying out according to second embodiment of the invention;
Fig. 9 is the schematic diagram of spinning step in the method for carrying out according to second embodiment of the invention;
Figure 10 is the schematic diagram of the embossing step that can carry out as second step in the above-mentioned second or the 3rd embodiment of the present invention.
Preferred embodiment describes in detail
Referring now to accompanying drawing, wherein identical label is represented structure corresponding among all figure, see figures.1.and.2 especially, a kind of tank body blank of a preferred embodiment of the invention or performing member 10 are two-piece type tank bodies, and it is preferably formed by well-known drawing and pressing technology.Tank body blank 10 comprises a columnar basically sidewall surfaces 12, a bottom 14 and a neck shape top 16.Or the top of cylinder side wall 12 can be straight.
As knowing in this technology field, tank body blank 10 must wash in drawing with after flattening technology, and necessary then drying is sent to decoration again.Dry run is carried out under about 250 degrees Fahrenheits temperature of (being equivalent to about 121 degrees centigrade) usually.According to one aspect of the present invention, drying is carried out under than the higher temperature of common process, so that at least the selected part of tank body blank 10 is carried out part annealing.Schematically draw thermal source 18 in Fig. 1, it is the part of drying device preferably, but can be on any point before the device for molding in the equipment.To discuss in more detail as following, tank body blank 10 preferably is formed from aluminium, the part annealing process is preferentially finished to the scope of about 550 degrees Fahrenheits (about 288 degrees centigrade) being essentially about 375 degrees Fahrenheits (about 190.5 degrees centigrade), preferred scope is extremely about 500 degrees Fahrenheits (about 260 degrees centigrade) of about 450 degrees Fahrenheits (about 232 degrees centigrade), and most preferred temperature is about 475 degrees Fahrenheits (about 246 degrees centigrade).This differs widely with real annealing process, and the latter's temperature is higher than 650 degrees Fahrenheits (about 353 degrees centigrade).The purpose of part annealing is to the enough ductility of tank body blank 10, is shaped jars 20 as shown in Figure 2 so that make, but the toughness of the toughness of this jar during then greater than the full annealing of tank body blank.
Or part annealing can or be decorated in the stove and carry out at a stove such as japanning oven, rather than carries out in drier.
Or tank body blank 10 can be made with steel rather than with aluminium.In this case, the preferred range of part annealing is essentially 1112 degrees Fahrenheits (600 degrees centigrade) to about 1472 degrees Fahrenheits (800 degrees centigrade).More preferably, part annealing is carried out in about 1382 degrees Fahrenheits (750 degrees centigrade).
Referring now to Fig. 2, the jar 20 of shaping is subjected to ornamental and characteristic shaping, so that make client increase visual image to it.As seeing in Fig. 2, tank body 20 comprises bottom 26 and shaping sidewall 22, and the shape of shaping sidewall 22 is significantly different with the shape of standard round tubular tank body shape such as tank body blank 10.Shaping sidewall 22 comprises the zone that may wish to deviate from especially drum, as raised line 30 and groove 32.According to an importance of the present invention, decoration is provided on the outer surface of shaping sidewall 22 by this way, will decorate emphatically at those positions that require to deviate from drum especially of sidewall exactly.As can in Fig. 2, seeing, first kind of decoration (it can be a kind of more shallow color) is provided on the raised line 30, and at least one groove 32, provides second kind to decorate 36 (it can be a kind of darker color).By providing such selectivity to decorate, and by departing from the shaping sidewall 22 that this kind decoration is alignd suitably, can obtain the visual effect of best fit, this visual effect is impossible be shaped or tank body be decorated and obtains by independent tank body.
Refer again to Fig. 2, shaping sidewall 22 also has a smooth area 28, can write or label in this place, and seals with can end 24, and the latter engages process seals with conventional two crimpings.
According to preferable methods, on the drying table by after the thermal source 18 parts annealing, tank body blank 10 is transported on the decorator, add characteristic decoration at this place, and tank body blank 10 still is in its cylinder configuration, in decoration process also can outside label the mold profile that is used for during forming step subsequently decorative content alignd, this narration in more detail below.
Referring now to Fig. 3, equipment shown in the figure 38, according to a preferred embodiment of the invention, this equipment is used for the shaping jar 20 of the sort of type shown in the shop drawings 2.As finding out in Fig. 3,4,5, equipment 38 comprises a mould 40, and it has the mold wall 46 that forms mold cavity 42, and this mold cavity 42 meets the required net shape of shaping tank body 20.As shown in Figure 7, mould 40 is amalgamation wall type, mold wall 46 comprises the part 48 of inwardly stretching out, and its diameter is less than the diameter Db of the cylinder side wall 12 of the tank body blank 10 that has been shown by dotted line among Fig. 7 b.Mold wall 46 also comprises a plurality of outwardly directed parts, and its diameter is greater than the diameter Db of the sidewall 12 of tank body blank 10.In other words, the part 48 of inwardly stretching out the cylinder side wall 12 of tank body blank 10 certainly will be compressed to by the position shown in the solid line 12 among Fig. 7 b ', the sidewall 12 of tank body blank 10 then must expand into the outwardly directed part 50 that meets mold wall 46.Preferably, when pressurized in this way, make the circumferential length of cylinder side wall keep constant, make exactly the cylinder side wall 12 of pressurized ' circumferential length equate with the peripheral length of the sidewall 12 of tank body blank 10.
As being clearly shown that among Fig. 3, die device 40 has three stamper components 82,46 and 84, and they form neck ring, mould side wall and bottom bearing member respectively.Stamper component is spaced-apart by gap or " split line " 86 and 88.For easy to process, base support pressing mold 84 is made two, and the base circular arch of a central module 90 supporting tank bodies is arranged.Neck ring 82 provides the simple support to the tank body neck.These parts form inner room or the mold cavity 42 that holds tank body together, and are processed into the required net shape of tank body behind blowing.Pore 49 (seeing Figure 4 and 5) is set, so that the air of carrying secretly is overflowed when being shaped.
92,94 and rubber seal rings 96 of a pair of sealing and support ring are set, with the top of airtight container main body.A by chance position above the base support circular arch is led at the center that axle 98 of saving the space is passed sealing and support ring 92,94,96.Axle 98 supplies air in the tank body chamber in the cavity 42 by centre bore 100 and radial passage 102.This equipment also comprises upper piston 104 and lower piston 106, and they apply load for together the two ends of the jar in the mold cavity 42.Lower piston 106 can move up by the Supply Structure of pressurized air, and this pressurized air is sent to piston through path 10 8.Equally, upper piston can move down by the Supply Structure of pressurized air, and this pressurized air is sent to piston through passage 110 and 112.In illustrated compression, passage 110 connects the centre bore 100 of axle 98, makes upper piston share common air supply with a jar chamber.The air duct 112 of this common air supply in piston 104 and the bound fraction bifurcated supply piston 104 and jar chamber in central axle hole 100, thus reduce to lose and keep same pressure feed jar chamber and piston as far as possible.Preferably set up an organization and control the air velocity of supplying with each piston and jar chamber.Therefore can control jar cavity pressure and piston pressure closely.
The flow circuit diagram of the signal of property shown in Fig. 6, the expression air supplies to the stream in piston and jar chamber.In the figure, to schematically show with seal and support ring 92,94 be an independent unit 114 for upper piston 104.Equally, base support spare 84,90 and lower piston 106 are expressed as an independent unit 116. Unit 114 and 116 and neck ring 82 be transportable, and the sidewall pressing mold 46 of mould is shown as fixing.
This flow process comprises two pressure feeds.Pressure feed 118 supplies to jar chamber in top piston 104 and the mold cavity 42 with pressurized air; Pressure feed 120 is only supplied with pressurized air lower piston 106.
Supply with stream for two and respectively comprise pressure regulator 122 and 124, reservoir vessel 126 and 128, blow valve 130 and 132, and air bleeding valve 134 and 136.In addition, downforce supply stream 120 comprises a flow regulator 138.Upward pressure is supplied with stream 118 also can comprise a flow regulator, is not very important though whether can both regulate flow in two supply streams.Reservoir vessel 126,128 prevents that big decline appears in supply pressure during process.
Usually, about 30 pressure-airs that cling to are introduced the top of jar chamber and driving jar.The air pressure that drives bottom piston 106 is generally about 50 crust, depends on piston area.Air pressure in the mold cavity 42 provides the outside required power that expands of tank body blank, but also unwanted power is applied on the neck and base of jar, and this causes the longitudinal tension force in the pot sidewall.Therefore two pistons are used to drive the top and the bottom of jar, form a power, be used for offsetting this tension force of pot sidewall.
Damage owing to division or wrinkle for avoiding jar at shaping, the air pressure that supplies to piston is crucial.If owing to the pressure in the piston is too low tension force in the pot sidewall can not fully be offset by this piston pressure, division will appear so.On the contrary, the air pressure of supply should be too not high, otherwise can form ripple in sidewall.
For this reason, preferably do not need retainer to come the stroke of limited piston.If stroke is restricted, before the piston arrives retainer, jar can not fully expand facing to mold wall.If this situation takes place, the tension force in the pot sidewall can not be produced the risk of division by the piston pressure balance thereupon.In fact, the jar of expansion stops piston to be moved further with contacting of mould side wall.
Therefore should be noted that the balance that in the overall process of forming period, preferably remains between jar cavity pressure and the piston pressure, make in the chamber and the pressure climbing speed behind the piston should be subjected to balance in the whole cycle, particularly when tank skin is surrendered.The pressure climbing speed can be by flow regulator 138 or controlled by adjusting supply pressure through pressure regulator 122,124.
By adjusting a jar cavity pressure with respect to the pressure that mold component 82,46,84 is moved mutually in opposite directions that is applied in, this equipment can be operated with one of three kinds of different modes.By outer mould part 82,84 is applied as far as possible little pressure, can operate this equipment like this, make and only mold component is shifted to another and can not applied any power to tank body.This will reduce the gap 86,88 in the die device 40, because tank body longitudinally shrinks in expansion process, and will reduce but not necessarily offset the axial tensile stress that produces in the tank wall between the phase of expansion.Another kind of mode is, by being provided, increased pressure comes to drive opposite to each other mutually outer mould part, apply a vertical or axial slightly power to tank body, it is substantially equal to the axial tensile stress in the tank wall, thus this stress of balance and weakening and possible division of preventing that tank body from taking place subsequently.The third operation provides even bigger pressure comes to drive opposite to each other mutually outer mould part, so that apply an axial compressive force to tank body, it offsets the required power of tensile stress in the sidewall greater than operating period.The net pressure that preferably provides can not cause forming wrinkle.
In order to form jar, at first open ventilation valve 130,132.Between piston and jar cavity pressure, obtain better matching if desired, can a short delay be arranged between the time opening of two ventilation valves, but a stream needs a higher pressure climbing speed, so that keep this balance.Also can keep pressure balance at curring time with postponing to compensate different tube length.As top during with reference to Fig. 3 as described in, on supply with air-flow 118 and be divided into two, be used for the jar chamber of piston 104 and as close as possible piston 104.
This equipment designs like this, make that at the latest this jar is shaped fully again when its range of each piston arrives, and gap 86,88 is finally not closed.Gap-closing may cause the division of jar owing to overtension in the sidewall, and its mode moves just as limited piston before complete expansion takes place.But final gap should be not excessive, because the mark that any eyes on the sidewall can be seen becomes too showy, can alleviate this problem though remove the sharpened edge at split line place.
In case shaping operation finishes, by valve 134 and 136 venting air.Obviously air bleeding valve is closed in whole actual forming process.Importantly supply with air-flows and want exhaust simultaneously for two strands, because the pressure of the compensator cavity pressure (longitudinal tension force) that is applied by piston may be greater than the axial strength of jar, the therefore damage that causes jar of uneven exhaust.
As being clear that among Fig. 4, tank body blank 10 preferably is placed in the mold cavity 42, and as mentioned above, its inner space is sealed to a charging fluid source and is communicated with.As seeing in Fig. 4, chamber 42 is so designed, and makes when tank body blank 10 is inserted into wherein tank body blank 10 to be applied a slight pressure.This preferably finishes by the die device parts being configured as the two halves 52,54 shown in Fig. 4, and they are divided into two like this, makes can center on this tank body blank closure before pneumatic expansion tank body blank 10.
When the two halves 52,54 of mould centered on cylinder side wall 12 closures, therefore the inside extension 48 of mold wall 46 compressed or compresses in advance the distance that the big Rin of arriving shown in the cylinder side wall 12 to Fig. 7 measures.Thereby mould be closed and sealing and charging fluid be fed into force in the mold cavity 46 tank body blank 10 near mold wall 46 after, tank body blank 10 will be forced to present jars 20 the required net shape of being shaped.The state of this step postforming sidewall 22 shown in Figure 5.In this step, the cylinder side wall 12 of tank body blank 10 is inflated the Rout amount, and this schematically illustrates in Fig. 7 again.
The sidewall 12 that the precommpression that the closure of mould two halves 52,54 realizes makes tank body blank 10 is radially to the distance of a Rin of bias internal, and preferably this distance is between about 0.1 to about 1.5 millimeters.More preferably, this distance is positioned at 0.5 to about 0.75 millimeter scope.Cylinder side wall 12 radially outwards expands and the distance R out that forms the outermost portion of shaping sidewall 22 is preferably located in about 0.1 to about 5.0 millimeters scope.The more preferably scope of distance R out is about 0.5 to 3.0 millimeter.Most preferred distance R out is about 2 millimeters.
Before understanding expansion step cylinder side wall 12 is carried out the benefit that precommpression obtains, it must be understood that, obtain necessary ductility in order to make expansion step, a certain amount of annealing or part annealing may be useful, and is special under the situation of aluminium pot body.But it is complete more to anneal, and the intensity of the jar 20 that is shaped and toughness are final just more little.Utilize precommpression to obtain superimposed marked difference part between the interior and outermost portion of the final pattern on jars 20 that is shaped, reduced the necessary actual radial expansion volume of acquisition institute desirable pattern.Therefore, also reduced the annealing amount that need be applied on the tank body blank 10.Therefore, annealing and consequent loss of strength that the precommpression step allows the desired pattern that is superimposed on the jar 20 that is shaped to have minimum allow the cylinder side wall 12 of tank body blank 10 can do thinly as much as possible for this type of technology thus.
As one embodiment of the present of invention, mold wall can be made with porous material, so that allow the poly-air of staying between tank body blank sidewall and the mold wall to overflow during operation, though may still need pore.A kind of such material is the porous steel, and it can have been bought from the AGA Aktiebolag in Sweden Leydig city.
For the purpose of quality-monitoring and control, during expansion process and afterwards the structure that closes on device 69 by pressure faces the fluid pressure in the control mold cavity 46, and this schematically shows in Fig. 5.Pressure monitor device 69 is a conventional configurations.If tank body leaks during expansion process, if the unusual generation perhaps in Guan upper flange or the neck comes compared with non-this kind situation so to the poor sealing of gas control pin, the pressure in the mold cavity will descend fasterly in mould chamber 46.Pressure monitor device 69 is this situation of perception, and will indicate this tank body the crack may occur to the operator.
Under the situation of cylinder of steel, can make the indoor pressure of mould enough high, so that tank body forms (for example) a kind of corrugated pattern, wherein on container, form a plurality of circumferential raised lines.
Disclose a kind of second method and apparatus of making the characteristic metal can of its shape among Fig. 7 and 9, this shape has strengthened the VIS of tank body to client.Fig. 8 and 9 expressions the 3rd embodiment.According to the second and the 3rd embodiment, make the metal can of a characteristic shape by follow procedure, just provide tank body blank tank body blank 10 as shown in fig. 1, this blank has the sidewall 12 of diameter substantial constant, radially in selected zone, make 10 distortion of tank body blank then by selected amount, radially repair and still symmetrical middle tank body 74 to obtain one, then the pattern of the mechanically deform of a preliminary election of stack on middle tank body 74 its inlet.Describe the second embodiment of the present invention now, the belling edge equipment 62 of a sort of type of knowing in this technology field comprises an anvil 66 and a belling edge instrument 64.Belling edge equipment 62 is used to make tank body blank 10 radially to be deformed into the radially middle tank body 74 of finishing shown in Fig. 9.As can in Fig. 9, seeing, do not have the distortion of tape spool on the middle tank body 74, and become around the cylindrical shape of tank body 74 inlets basically to composition.Utilize knurling tool 76 that previously selected mechanically deform pattern (being raised line and groove in the case) is superimposed upon on the middle tank body the feasible shaping jar 20 that can produce a sort of type shown in Figure 2 then.
In the 3rd embodiment shown in Fig. 8 and 9, use spinning apparatus 68 to make the cylinder side wall 12 of tank body blank 10 radially be deformed into middle tank body 74.As knowing in this technology, spinning apparatus 68 comprises an axle 70 and one and axle 70 opposed forming rolls 72.After this process, preferably on the middle tank body 74 that so is shaped, carry out the embossing step shown in Fig. 9 in the same manner as described above.
Replace another way of the embossing step shown in Fig. 9 to be, the middle tank body of being produced by method shown in Fig. 7 or Fig. 8 74 can alternatively be placed in the pneumatic expansion pressing mold or die device 40 of the sort of type shown in Fig. 3-5.Tank body 74 expands with above-mentioned same way as then, so that obtain the jar 20 that is shaped.
Above-mentioned second and third party's method in, tank body blank 10 is the annealing of also the most handy thermal source 18 parts in dry run, but preferably annealing grade is littler than described first embodiment.Preferably, above-mentioned second and the annealing of third party's method carry out to the temperature range between about 425 degrees Fahrenheits (about 218 degrees centigrade) in about 375 degrees Fahrenheits (about 190 degrees centigrade).Annealing with reference to Fig. 7 and 8 described methods so needs is lower than the described method of previous embodiment, mean that can to make jars 20 the intensity of being shaped under given weight or wall thickness bigger, perhaps with respect to the jar of producing with described first method can reduce the to be shaped weight of jar 20.But second and the shortcoming of third party's method comprise more machining and bigger mechanical complexity, and since additional mechanical treatment and operation and on jar, producing more wear and tear and tear, damage and may damage ornament.
But, be appreciated that, though proposed many feature and advantage of the present invention in the top description, and the function of CONSTRUCTED SPECIFICATION of the present invention, but disclosure only is exemplary, in the inventive principle scope that the extensive universal significance of the described clause of claims by appendix fully shows, details can change, particularly the shape of parts, size and configuration.Or, for example, as draw again and again drawing process, drawing-attenuation-again drawing process or three-member type welding or bonding manufacturing process.
Claims (35)
1. make characteristic shape so that improve the method for the metal can of client's visual image for one kind, comprise the following steps:
(a) make the tank body blank;
(b) make at least a portion of tank body blank carry out part annealing at least, make the annealing portion of tank body blank improve ductility thus;
(c) provide a die device, this die device has at least one mold wall that limits mold cavity, this mold cavity meets the net shape of the tank body of wanting, described die device is by constituting more than parts, and one of them described parts can move to another parts along the direction that is arranged essentially parallel to tank body blank axis during operation;
(d) described tank body blank is placed in the described mold cavity;
(e) charging fluid is supplied in the described mold cavity, make described tank body blank be stressed and, make described tank body blank present desired tank body net shape near described mold wall; And
(f) basically with step (e) side by side, one of them described mold component is moved to another parts vertically.
2. a method of claim 1, wherein described part annealing steps is to carry out to the temperature range of about 550 degrees Fahrenheits (288 ℃) in about 375 degrees Fahrenheits (190.5 ℃).
3. method as claimed in claim 2, wherein, described part annealing steps is to carry out to the temperature range of about 500 degrees Fahrenheits (260 ℃) in about 450 degrees Fahrenheits (232 ℃).
4. method as claimed in claim 3, wherein, described part annealing steps is to carry out in the temperature of about 475 degrees Fahrenheits (246 ℃).
5. the method for claim 1, wherein, die device comprises three parts, and wherein step (f) comprises at least two parts in three parts is shifted to the second place towards the 3rd parts from primary importance, these parts are spaced-apart by the gap of leading in the mold cavity in primary importance, and the gap size between the mold component dwindles and still leads in the mold cavity in the second place.
6. method as claimed in claim 5, wherein step (f) also comprises the longest expansion point place that the gap is arranged on the tank body blank.
7. the method for claim 1, the wherein axial force balance that applies in power that in step (e), applies and the step (f) by charging fluid.
8. described method as claimed in claim 1, wherein step (f) comprises to the tank body blank and applies an axial force, this axial force is enough to that the sidewall to the tank body blank applies a net compressive force during step (e).
9. the method for claim 1, wherein said tank body blank has the sidewall of a diameter substantial constant.
10. the method for claim 1, wherein step (b) is in a japanning or decorate in the stove and carry out.
11. the method for claim 1, wherein step (b) is carried out during the described tank body blank of drying.
12. make characteristic shape so that improve the equipment of the metal can of client's visual image, comprising for one kind:
Make the mechanism that the tank body blank is used;
At least make at least a portion of tank body blank carry out the mechanism of part annealing usefulness, make the annealing portion of tank body blank improve ductility thus;
Mold mechanism, comprise a die device, this die device has at least one mold wall that limits mold cavity, this mold cavity meets the net shape of the tank body of wanting, described die device is by constituting more than parts, and one of them described parts can move to another parts along the direction that is arranged essentially parallel to tank body blank axis during operation;
Placement Cell is used for described tank body blank is placed in the described mold cavity;
Fluid supply mechanism is used for a kind of charging fluid is supplied to described mold cavity, makes described tank body blank be stressed and near described mold cavity, makes described tank body blank present the net shape of the tank body of wanting; And
Axially reduce mechanism, be used to make described one of them mold component to move to another parts vertically.
13. an equipment as claimed in claim 12, wherein, described part annealing steps is to be carried out to the temperature range of about 550 degrees Fahrenheits (288 ℃) in about 375 degrees Fahrenheits (190.5 ℃) by described drier.
14. an equipment as claimed in claim 13, wherein, described part annealing steps is to be carried out to the temperature range of about 500 degrees Fahrenheits (260 ℃) in about 450 degrees Fahrenheits (232 ℃) by described drier.
15. an equipment as claimed in claim 14, wherein, described part annealing steps is to be carried out in the temperature of about 475 degrees Fahrenheits (246 ℃) by described drier.
16. equipment as claimed in claim 12, wherein, the described mechanism of axially reducing comprises having three described molded mechanisms and the mechanism that is used at least two parts of described three parts are shifted to from primary importance towards the 3rd parts the second place that limit the parts of described mold cavity, these parts are separated each other by the gap of leading in the mold cavity in this primary importance, and the gap size between these mold components reduces and still leads in the mold cavity in this second place.
17. an equipment as claimed in claim 16, wherein, the gap in the mould is arranged on the maximum swelling point of container.
18. an equipment as claimed in claim 12, wherein, the described mechanism of axially reducing comprises to the tank body blank and applies an axial force, and this power is enough to that the sidewall to the tank body blank applies a net compressive force between the phase of expansion.
19. an equipment as claimed in claim 12, wherein, the described mechanism of axially reducing is manufactured and be arranged to one of balance and be applied to power on the container body blank by described fluid supply mechanism.
20. an equipment as claimed in claim 12 also comprises an independent charging fluid circuit, is used to supply with described fluid supply mechanism and described axial compression mechanism.
21. an equipment as claimed in claim 12, wherein, the mechanism of described part annealing usefulness comprises a japanning or decorates stove.
22. an equipment as claimed in claim 12, wherein, the mechanism of described part annealing usefulness comprises a tank body drier.
23. container of making according to the method that proposes in the claim 1.
24. make characteristic shape so that improve the method for the metal can of client's visual image, comprise the following steps: for one kind
(a) make the tank body blank;
(b) make at least a portion of tank body blank carry out part annealing at least, make the annealing portion of tank body blank improve ductility thus;
(c) provide a die device, this die device has at least one mold wall that limits mold cavity, and this mold cavity meets the net shape of the tank body of wanting;
(d) described tank body blank is placed in the described mold cavity; And
(e) charging fluid is supplied in the described mold cavity, make described tank body blank be stressed and, make described tank body blank present the net shape of the tank body of wanting near described mold wall.
25. a method as claimed in claim 24, wherein, described part annealing steps is to carry out to the temperature range of about 550 degrees Fahrenheits (288 ℃) in about 375 degrees Fahrenheits (190.5 ℃).
26. a method as claimed in claim 25, wherein, described part annealing steps is to carry out to the temperature range of about 500 degrees Fahrenheits (260 ℃) in about 450 degrees Fahrenheits (232 ℃).
27. a method as claimed in claim 26, wherein, described part annealing steps is to carry out in the temperature of about 475 degrees Fahrenheits (246 ℃).
28. a method as claimed in claim 24, wherein, step (b) is carried out in japanning or decoration stove.
29. a method as claimed in claim 24, wherein, step (b) is at the described tank body of drying, carries out during the blank.
30. make characteristic shape so that improve the equipment of the metal can of client's visual image, comprising for one kind:
Make the mechanism that the tank body blank is used;
At least make at least a portion of tank body blank carry out the mechanism of part annealing usefulness, make the annealing portion of tank body blank improve ductility thus;
Mold mechanism comprises a die device, and this die device has at least one mold wall that limits mold cavity, and this mold cavity meets the net shape of the tank body of wanting;
Placement Cell is used for described tank body blank is placed in the described mold cavity; And
Fluid supply mechanism is used for charging fluid is supplied to described mold cavity, makes described tank body blank be stressed and near described mold wall, makes described tank body blank present the net shape of the tank body of wanting.
31. an equipment as claimed in claim 30, wherein, described part annealing steps is to be carried out in the temperature range of about 550 degrees Fahrenheits (288 ℃) in about 375 degrees Fahrenheits (190.5 ℃) by described drier.
32. an equipment as claimed in claim 31, wherein, described part annealing steps is to be carried out to the temperature range of about 500 degrees Fahrenheits (260 ℃) in about 450 degrees Fahrenheits (232 ℃) by described drier.
33. an equipment as claimed in claim 32, wherein, described part annealing steps is to be carried out in the temperature of about 475 degrees Fahrenheits (246 ℃) by described drier.
34. an equipment as claimed in claim 30, the mechanism of wherein said part annealing usefulness comprises japanning or decorates stove.
35. an equipment as claimed in claim 30, the mechanism of wherein said part annealing usefulness comprises the tank body drier.
Applications Claiming Priority (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US467995P | 1995-10-02 | 1995-10-02 | |
| US60/004,679 | 1995-10-02 | ||
| US54242295A | 1995-11-16 | 1995-11-16 | |
| US08/542,422 | 1995-11-16 | ||
| US08/551,073 US5746080A (en) | 1995-10-02 | 1995-12-12 | Systems and methods for making decorative shaped metal cans |
| US08/551,073 | 1995-12-12 | ||
| GB9603110.9 | 1996-02-14 | ||
| GBGB9603110.9A GB9603110D0 (en) | 1996-02-14 | 1996-02-14 | Reshaping of containers |
| GB9604784.0 | 1996-03-06 | ||
| GBGB9604784.0A GB9604784D0 (en) | 1996-03-06 | 1996-03-06 | Reshaping of containers |
| US62179596A | 1996-03-22 | 1996-03-22 | |
| US08/683,575 US5832766A (en) | 1996-07-15 | 1996-07-15 | Systems and methods for making decorative shaped metal cans |
| US08/683,575 | 1996-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1202844A true CN1202844A (en) | 1998-12-23 |
Family
ID=27562928
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96198572A Pending CN1202843A (en) | 1995-10-02 | 1996-09-17 | Systems and methods for making decorative shaped metal cans |
| CN96198588A Pending CN1202844A (en) | 1995-10-02 | 1996-09-17 | Systems and methods for making decorative shaped metal cans |
| CN96198571A Pending CN1202842A (en) | 1995-10-02 | 1996-09-17 | Systems and methods for making decorative shaped metal cans |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96198572A Pending CN1202843A (en) | 1995-10-02 | 1996-09-17 | Systems and methods for making decorative shaped metal cans |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96198571A Pending CN1202842A (en) | 1995-10-02 | 1996-09-17 | Systems and methods for making decorative shaped metal cans |
Country Status (14)
| Country | Link |
|---|---|
| EP (3) | EP0853515B1 (en) |
| KR (3) | KR19990063928A (en) |
| CN (3) | CN1202843A (en) |
| AR (3) | AR003716A1 (en) |
| AU (3) | AU717400B2 (en) |
| BR (3) | BR9610813A (en) |
| CA (3) | CA2233672C (en) |
| DE (3) | DE69616578T2 (en) |
| DK (3) | DK0853514T3 (en) |
| ES (3) | ES2163654T3 (en) |
| ID (1) | ID17216A (en) |
| PL (3) | PL183248B1 (en) |
| TR (3) | TR199800615T1 (en) |
| WO (3) | WO1997012704A1 (en) |
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|---|---|---|---|---|
| CN1297410C (en) * | 2003-06-11 | 2007-01-31 | 私立逢甲大学 | Fabrication method for halftone deformation pattern of stamping jar |
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| US5746080A (en) * | 1995-10-02 | 1998-05-05 | Crown Cork & Seal Company, Inc. | Systems and methods for making decorative shaped metal cans |
| US5938389A (en) * | 1996-08-02 | 1999-08-17 | Crown Cork & Seal Technologies Corporation | Metal can and method of making |
| GB9623364D0 (en) * | 1996-11-09 | 1997-01-08 | Metal Box Plc | Reshaping of drawn and wall ironed containers |
| GB9726606D0 (en) * | 1997-12-18 | 1998-02-18 | Metal Box Plc | Can shaping |
| ES2163954B1 (en) * | 1998-08-07 | 2003-06-01 | Suarez Carlos Infanzon | PROCEDURE FOR FLUID CONFORMING METAL CONTAINERS, ESPECIALLY MANUFACTURED IN STAINLESS STEEL. |
| US20020162371A1 (en) * | 2001-05-01 | 2002-11-07 | Peter Hamstra | Method of pressure-ram-forming metal containers and the like |
| WO2005000498A1 (en) | 2003-06-27 | 2005-01-06 | Crebocan Ag | Method and device for the production of a can body, and can body |
| DE602004009035T2 (en) | 2004-04-16 | 2008-06-19 | Impress Group B.V. | Method for forming container bodies and apparatus for carrying out the method |
| US7191032B2 (en) | 2004-05-14 | 2007-03-13 | Novelis Inc. | Methods of and apparatus for forming hollow metal articles |
| US9365344B2 (en) | 2004-06-17 | 2016-06-14 | Caprosol Ag | Method for the production of a can body, and can body |
| DE602006015565D1 (en) | 2005-05-19 | 2010-09-02 | Mold Masters Ltd | Injection molding nozzle with a thermally conductive sleeve and method for its production |
| US7726165B2 (en) | 2006-05-16 | 2010-06-01 | Alcoa Inc. | Manufacturing process to produce a necked container |
| US7934410B2 (en) | 2006-06-26 | 2011-05-03 | Alcoa Inc. | Expanding die and method of shaping containers |
| BRPI0702306A2 (en) * | 2007-05-21 | 2009-01-13 | Vlademir Moreno | tugging process for forming pre-lash-shaped metal packaging, and tugging equipment for pre-lash-forming metal packaging |
| MY175342A (en) | 2010-08-20 | 2020-06-19 | Alcoa Inc | Shaped metal container and method for making same |
| EP2502684A1 (en) | 2011-03-21 | 2012-09-26 | Crown Packaging Technology Inc | Apparatus for holding a container |
| AU2012362127B2 (en) * | 2011-12-30 | 2017-08-31 | The Coca-Cola Company | System and method for forming a metal beverage container using blow molding |
| GB201205243D0 (en) | 2012-03-26 | 2012-05-09 | Kraft Foods R & D Inc | Packaging and method of opening |
| US9327338B2 (en) | 2012-12-20 | 2016-05-03 | Alcoa Inc. | Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container |
| GB2511559B (en) | 2013-03-07 | 2018-11-14 | Mondelez Uk R&D Ltd | Improved Packaging and Method of Forming Packaging |
| GB2511560B (en) | 2013-03-07 | 2018-11-14 | Mondelez Uk R&D Ltd | Improved Packaging and Method of Forming Packaging |
| CN103272961B (en) * | 2013-06-19 | 2015-09-09 | 舟山市普陀博达机械制造有限公司 | Irregular tank body expander |
| CN103801620B (en) * | 2014-01-23 | 2016-03-02 | 深圳华特容器股份有限公司 | A kind of iron sheet side tank body forming mould |
| US10875073B2 (en) | 2014-05-04 | 2020-12-29 | Belvac Production Machinery, Inc. | Systems and process improvements for high speed forming of containers using porous or other small mold surface features |
| CN110270621B (en) | 2014-05-04 | 2021-07-23 | 贝瓦克生产机械有限公司 | Electromagnetic coil and method for manufacturing same |
| US10486217B2 (en) * | 2017-04-25 | 2019-11-26 | Stolle Machinery Company, Llc | Unitary body swing lever |
| DE102017118654B4 (en) | 2017-08-16 | 2019-06-27 | Schuler Pressen Gmbh | Ironing arrangement, forming device with a Abstreckwerkzeuganordnung and method for forming a cup-shaped output part |
| WO2019195083A1 (en) * | 2018-04-03 | 2019-10-10 | Belvac Production Machinery, Inc. | Systems and process improvements for high speed forming of containers using porous or other small mold surface features |
| CN109719187B (en) * | 2019-02-03 | 2019-12-06 | 哈尔滨工业大学 | Asymmetric reducing thin-wall part circumferential flow forming device |
| CN114178411A (en) * | 2021-12-31 | 2022-03-15 | 潍坊倍力汽车零部件有限公司 | High-pressure forming die in power-reducing type pipe fitting |
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| NL291159A (en) * | 1962-08-17 | |||
| US3757555A (en) * | 1972-01-14 | 1973-09-11 | Vermont Marble Co | Can body expanding and flanging apparatus |
| GB8820585D0 (en) * | 1988-08-31 | 1988-09-28 | Metal Box Plc | Pneumatic reshaping of cans |
| US5058408A (en) * | 1990-01-30 | 1991-10-22 | Aluminum Company Of America | Method for partially annealing the sidewall of a container |
| US4947667A (en) * | 1990-01-30 | 1990-08-14 | Aluminum Company Of America | Method and apparatus for reforming a container |
| GB2257073B (en) * | 1991-07-04 | 1994-02-23 | Cmb Foodcan Plc | Apparatus and method for reshaping containers |
-
1996
- 1996-09-17 CA CA002233672A patent/CA2233672C/en not_active Expired - Fee Related
- 1996-09-17 AU AU71121/96A patent/AU717400B2/en not_active Expired
- 1996-09-17 CN CN96198572A patent/CN1202843A/en active Pending
- 1996-09-17 EP EP96932254A patent/EP0853515B1/en not_active Expired - Lifetime
- 1996-09-17 KR KR1019980702401A patent/KR19990063928A/en not_active Application Discontinuation
- 1996-09-17 TR TR1998/00615T patent/TR199800615T1/en unknown
- 1996-09-17 EP EP96932253A patent/EP0853514B1/en not_active Expired - Lifetime
- 1996-09-17 DK DK96932253T patent/DK0853514T3/en active
- 1996-09-17 WO PCT/US1996/014912 patent/WO1997012704A1/en not_active Application Discontinuation
- 1996-09-17 TR TR1998/00614T patent/TR199800614T2/en unknown
- 1996-09-17 WO PCT/US1996/014913 patent/WO1997012705A1/en not_active Application Discontinuation
- 1996-09-17 AU AU20127/97A patent/AU718654B2/en not_active Ceased
- 1996-09-17 AU AU71122/96A patent/AU719408B2/en not_active Expired
- 1996-09-17 BR BR9610813A patent/BR9610813A/en not_active IP Right Cessation
- 1996-09-17 CA CA002233642A patent/CA2233642C/en not_active Expired - Lifetime
- 1996-09-17 DE DE69616578T patent/DE69616578T2/en not_active Expired - Lifetime
- 1996-09-17 CN CN96198588A patent/CN1202844A/en active Pending
- 1996-09-17 BR BR9610805A patent/BR9610805A/en not_active Application Discontinuation
- 1996-09-17 DE DE69616579T patent/DE69616579T2/en not_active Expired - Lifetime
- 1996-09-17 WO PCT/US1996/014914 patent/WO1997012706A1/en not_active Application Discontinuation
- 1996-09-17 PL PL96326036A patent/PL183248B1/en unknown
- 1996-09-17 KR KR1019980702403A patent/KR19990063930A/en not_active Application Discontinuation
- 1996-09-17 TR TR1998/00616T patent/TR199800616T2/en unknown
- 1996-09-17 KR KR1019980702402A patent/KR19990063929A/en not_active Application Discontinuation
- 1996-09-17 DK DK96932254T patent/DK0853515T3/en active
- 1996-09-17 ES ES96932254T patent/ES2163654T3/en not_active Expired - Lifetime
- 1996-09-17 BR BR9610795A patent/BR9610795A/en not_active IP Right Cessation
- 1996-09-17 ES ES96932252T patent/ES2160836T3/en not_active Expired - Lifetime
- 1996-09-17 ES ES96932253T patent/ES2163653T3/en not_active Expired - Lifetime
- 1996-09-17 DK DK96932252T patent/DK0853513T3/en active
- 1996-09-17 EP EP96932252A patent/EP0853513B1/en not_active Expired - Lifetime
- 1996-09-17 DE DE69614559T patent/DE69614559T2/en not_active Expired - Lifetime
- 1996-09-17 PL PL96326034A patent/PL183246B1/en not_active IP Right Cessation
- 1996-09-17 PL PL96326035A patent/PL183247B1/en unknown
- 1996-09-17 CA CA002233675A patent/CA2233675C/en not_active Expired - Lifetime
- 1996-09-17 CN CN96198571A patent/CN1202842A/en active Pending
- 1996-09-25 AR ARP960104496A patent/AR003716A1/en unknown
- 1996-09-25 AR ARP960104497A patent/AR003717A1/en unknown
- 1996-09-25 AR ARP960104495A patent/AR003715A1/en unknown
- 1996-09-30 ID IDP962778A patent/ID17216A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297410C (en) * | 2003-06-11 | 2007-01-31 | 私立逢甲大学 | Fabrication method for halftone deformation pattern of stamping jar |
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