DE1602512A1 - Method and apparatus for manufacturing closure caps with continuations - Google Patents

Description

DIPL.-ING. GONTHER KOCH DR. TINO HAiBACH

8 MUNICH 2, 1 ² 'Oct. 1967

1-j 038

AUGUSTUS 1st MEROILE, Brooklyn, New York, Y.St.v.A.

Method and device for producing closure caps with extensions

The invention "relates generally to end caps or lids of the appended type, and it "particularly relates to novel methods and devices which make it possible to manufacture caps of the type mentioned of high quality with high operation speed, the Manufacturing costs of the device used are very low and the device takes up little space

More particularly, the invention relates to closure caps with an inwardly folded or beaded bead, which comes together at points distributed around the circumference.

_{σ is} expressed in quantities that at the relevant points extensions

to are available that can be accessed with the winding passages of a container.

- * can work together to put the cap over the container- • s »

^ To attach the opening to the container and thus to close the container. A closure cap of this type is described in U.S. Patent 2,297,643 along with a method of making closures from metal. ^BATH ORIGINAL

In the method according to said US patent, the crude hand of the sheath extending from the upper Hauptfläcne of the lid downwards, is folded in a single operation inside, so that a flange is formed _o This operation is typical of most hitherto known method: n, and it results in a product of poor quality, since the punching tool to carry out this operation applies excessive forces to the raw edge of the shell, the shell being pressed against the upper part of the lid; in doing so, the metal of the lid is undesirably displaced, so that the upper part of the lid becomes unsightly. In order to avoid this disadvantage, devices have been used up to now which make it possible to roll up the raw edge of the cover in a preparatory manner before the punch or the material acts on the cover for forming the flange. However, it is necessary to carry out this preparatory operation by means of a device separate from the machine for forming the extensions; this separate device is in many cases very expensive and its operating speed is slow. As can be seen from the following description, the device according to the invention performs the operation of preforming the flange and final shaping of the inwardly folded

ο th flange through, so that you only need one device

co by means of which the extensions are formed without resulting in a reduction in the rate of production.

_o . If a separate device for preforming the lids <

is used, it is also necessary, after preforming g

O disc-shaped inserts or linings in the lids an- q

assign, and here must be the diameter of the disk-shaped

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Inlay, of course, be smaller than the Boer knife of the upper one Surface of the lid so that the insert is only loosely fitted into the lid. This is particularly undesirable when the disk-shaped insert must be glued to the edge of the container, e.g. a glass A multi-layer insert for the lid of a container that is filled with soluble coffee powder The layers of the lining is made of thin parchment paper (glassine) and is made with the very narrow rim of the container glued with the help of glue, which is applied to the edge before the lid with the multi-layer liner is attached to the container. If the If the fit between the lid and the parchment paper disc is too loose, the parchment paper disc may occur does not come into contact with all parts of the container rim, so that an imperfect seal results. the The device according to the invention is designed so that the lining washer is inserted into the cover before the Arbeitsgarig is performed to preform the lid so that there is a relatively tight fit between the liner and the lid results in »

After the formation of the flange, the flange is _{rolled inwards to Q 3} , so that a yeast is formed, and at the same time parts of the bead separated by distances are deformed in such a way that extensions arise which can work together with threads "Hitherto known devices, these extensions are produced with the help of a single punching tool or a die, by means of which an extremely high

BATH ORIGINAL

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Pressure is applied. These well-known tools include fingers, which are moved radially outward to support the appendages as they are being formed. Since a high - ^ jerk must be applied to produce the extensions in a single operation, these support fingers are excessive stressed so that they are often damaged.

In order to avoid this disadvantage of the devices known up to now, the invention provides measures to with to form the threads cooperating extensions with the help of two work steps. At the first step a tool works with the inwardly folded flange to create a partially formed bead, the with circumferentially distributed, partially trained Extensions is provided. Then other tool means with radially movable support fingers grip the partially formed Bead and the partially formed extensions to both the bead and the extensions in their final shape bring. Since the extensions are not formed in one operation but in two operations, it is possible to use the The size of the appendages can be better regulated, and, what is possibly more important, the overall quality of the lid can be controlled in the Compared to the application of the methods and / or devices customary up to now, better mastered.

> 3 The device according to the invention described below

further comprises a device which makes it possible to cut a liner from paper and insert it into the blank for insert the lid before any work steps to roll up the lid edge and to shape the extensions.

BATH ORIGINAL,

«Vifie can be seen from the following description, the device according to the invention is designed so that after a blank has been fed to the device, the blank securely held in place and not released between operations designed to introduce a liner into the lid, to form an inwardly folded flange in two separate work steps and in two further work steps to shape the bead turned inwards and to provide it with the aforementioned extensions.

A main object of the invention is therefore to provide novel Provide methods and devices for the creation of sealing caps with extensions.

Another object of the invention is to provide a process of the type mentioned, in which the extensions are preformed before they are given their final shape, so that a product of superior quality is obtained.

The invention also provides a device for molding of lids with extensions, in which the inwardly folded flange is formed in two working steps, which is carried out without releasing the cover between the work steps.

C ₀ Furthermore, the invention provides a device of the ge

* a mentioned type, which includes a facility which it ermb'g-5 * light to form a lining and insert it into the raw part

OV ι

^ feed before starting to shape the flange, the bead and / or the extensions.

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Another object of the invention is to provide a novel apparatus in which a workpiece holder a Röh ± eil covered with a straight jacket and does not release this blank again until it becomes a finished part Lid with extensions has been processed o

Further details and advantages of the invention emerge from the following description of an exemplary embodiment on the basis of the drawings "

Fig. 1 is a perspective view of one according to the invention Device for forming closure caps or lids of the type mentioned »

FIG. 2 shows the device according to FIG. 1 on a larger scale in plan.

Fig. 2A shows the intermittent in part of a U-round outline acting drive mechanism.

Fig. 3 is a section along the line 3-3 in Fig. 2 »

Figure 4 is a vertical section through the head of the Cutting out and inserting the liner, with the head in its upper position or "rest position"

«O Fig. 5 is a vertical section through the

~ * tendency to curl up serving head, which here is in its lower position

Q * or occupies the working position
fs »

~ *. Fig. 5a shows a bottom view of the storage of Push wheels of the head according to Fig. 5.

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I ¹ Ig. 6 is a vertical section through the head used for forming the flange and shows the head in its upper position "or the rest position _o

Jig. 7 is a vertical section through the head, by means of the bead and the appendages of which are partially formed, the head is shown in its upper position or the rest position.

Fig. 8 is a vertical section through the head of the Completion of the bead and the extensions, the head being shown in its upper position or the rest position.

Fig. 9 is a perspective view of a finished one Lid with appendages.

Fig. 10 shows the underside of the lid according to FIG. 9 °

Fig. 11 to 15 show in diametrical cross-sections the Lid according to FIG. 9 during various stages of its manufacture. In Fig. 11 you can see the blank cover, which is characterized by the Device according to Fig. 1 is performed, and Figo 12 shows this Raw part after the preparatory curling of its edge. Fig. Shows the formed flange, while Fig. 14 partially

_o Recognize the shaped bead and the partially shaped projections

ο '

(o leaves, which are shown in Fig. 15 in their final form.

In the event that the cover to be produced is to be provided with a lining disk, such a disk 31 _m, which is indicated in Fig. 12 with dash-dotted lines, is inserted into the blank, before its edge is rolled up in preparation.

In the following, reference is first made to FIGS. 9 to 15, where the various stages in the manufacture of a with Extensions provided cover 20 are shown with the aid of the method and the device according to the invention. According to 11, the generally cup-shaped blank 22 is produced by means of an apparatus which is not an object of the Invention forms; this blank is the one described below

NEN device of FIG. 1 supplied and by means of this device processed to form the cover 20 shown in FIG. 15 and provided with extensions.

The blank 22 comprises a circular upper wall 23 and a straight cylindrical shell 24 extending from the edge of the upper surface 23 extends from downward. First, according to FIG. 12 the free edge of the jacket 24 rolled up in a preparatory manner with the aid of the pressing device according to FIG. 5, as at 25 is indicated. The tool according to FIG. 6 then engages the preparatory rolled-up edge 25 in order to move it further inward and to press down a little so that the flange 26 shown in FIG. 13 is formed. The tool now registers 7 shows the flange 26 in order to partially produce a bead 27 with four partially shaped projections 28. Finally will

ο the tool according to Fig. 8 for the effect on the partially formed
"O ten Y / ulst 27 and the partially formed appendages 28 brought,

~ * ■ to produce the final bead 29 and the final extensions 30 _o . The shape of the preparatory rolled edge co contributes significantly to the final size and shape of the bead 29 and the extensions 30. If the lid has a disc

_ 9 -

shaped lining is to be provided, e.g. a disc 31 made of paper, as indicated schematically in FIG. 12, the disk is inserted into the blank 22 before the edge of the blank is rolled up preparatory at 25 by a pressing process will.

after the blank 22 of the holding device of the device 1 has been supplied, the holding device according to the following description only then reproduces the blank free when the cover 20 is finished »

The apparatus for making the lid 20 is shown in FIG Figs. 1 to 8 shown. It comprises a stationary substructure 35 as support for the moving parts of the device., A stationary hollow, upright main pillar 36 protrudes opposite the substructure 35 upwards beyond a table 35a. An arm star 37 is at the upper end of an inner column part 38 attached, which is slidably mounted in the main column 36. On a smaller diameter, with a thread provided section at the upper end of the inner column part 38, a nut 39 is screwed to the arm star 37 with the Pillar 38 to connect. A bolt 41 forms an articulated connection between the column 38 and the upper end of a crank

° arms 42, which has a circular opening at the lower end for opening

^ take one arranged on a main drive shaft 40 ^ a eccentric has. Thus, when the shaft 40 is rotated ο the arm star 37 moves up and down in a known manner. .

"" * A gear 43 keyed to the main drive shaft 40

drives a gear 44 on an intermediate shaft 45; the gear

-Ar-

44 combs with a tooth- • sitting on another Y / elle 47 rad 46. The main drive shaft 40 extends at right angles through the vertical axis of the column part 36, Although the Shafts 40 and 47 are arranged parallel to each other, but the shaft 47 is opposite to the axis of the column part 36 to the rear offset »With the shaft 47 is wedged according to Figo 2A and Fig. 3, a cam or cam piece 48 which cooperates with rollers 49, which are mounted on stub axles 50 which extend radially outward from a further column part 51, so that the column part 51 on bearings 52 and 53 around the column part 36 can be rotated.

The cam piece 48 and the rollers 49 work together in the manner of a worm gear, because the cam piece 48 is provided with a thread which is modified so that the rotation of the column or ring member 51 in quick and short Performs angular steps, taking between two each on top of one another a pause is activated following the steps below. More details of the construction of such an intermittent Acting drive mechanism can be found in Catalog No. 160A from Ferguson Machine Corporation of Indiana, Roller Gear Division St. Louis, Missouri, U.S.A.

ο With the device according to Fig. 1 to 8, the intermittent

co rend acting drive mechanism provided with twelve rollers 49, ^ ³ cooperate in the manner of the teeth of a spur gear with the cam piece ^ 48, so that the ring 55, which with the ring part

^ 51 connected, one complete turn in twelve covers angular steps of equal size · The

Table 55 is provided with twelve recesses 56. During each of the twelve pauses in movement of the table 55, one of the recesses 56 is flush with a finger 61, by means of which a blank 22 for a cover is fed to the table at its front side. · At the same time there is another recess 56 in accordance with FIG. 4 in flush with the head 62 for cutting out and inserting a lining, a further recess 56 is in alignment with the push head 64 shown in Fig. 5 for rolling in the lid edge, another Recess 56 is aligned according to FIG. 6 with a head 66 for forming the flange, another recess 56 is shown in FIG Fig. 7 in flow with a tool head 68 for partial Formation of the bead 27 and the projections 28, a further recess 56 is flush with the one shown in FIG. 8 Yferkzeugkopf for the final shaping of the bead 29 and the extensions 30, and another recess 56 is empty, since a finished cover 20 has just been removed from it. The remaining recesses 56 are each between those Recesses, the position of which has been described above.

The ring-like horizontal work table 55 is arranged above the stationary table 35a and on the outer surface of the Ring member 51 attached near its upper end, so that it is

Q ₃ rotates together with the ring part. The top of the table 55

_ »Is provided with several circular recesses 56, and in *** ■ each recess is a ring 57 forming a liner ο

** arranged while the bottom of each recess of a base or Support disk 58 is covered. A lug 58a protrudes from the center of the disc 58 down through an opening 56a in the

Bottom of the recess 56 and jumps down towards the Underside of the table 55 in front so that the finished lid 20 can be ejected in a manner to be described. A suitable ring b7 and a suitable washer!? 8 are required to produce lids of different sizes arranged in each recess 56.

The arm star 37 comprises a ring-like portion 37a and an arm 37b which extends along a diameter of the Ring portion 37a extends. The ring portion 37a carries four port sets 37c protruding radially outward, and a guide bush 71 is built into each of these port sets. Any leadership Bushing 71 cooperates with a tight fit with an associated vertical guide post 72 extending from the table 35a extends upward from the column part 36 is in FIG Arranged in the middle between the various guiding columns 72. The guide bushings cooperating with the guide columns 72 71 serve to the arm star 37 in its vertical upward and downward movement relative to the table 35a stabilize. According to ü'ig. 2 are the copies 62, 66, 68 and 70 attached to the arm star 37 and distributed along the ring section 37a at circumferential intervals.

° According to Fig. 4, the head 62 is for cutting and inserting

The lining disks 31 are connected to a hollow, vertical guide part 81, which is firmly connected to a horizontally extending structural element 82 which is arranged above the table 55 and attached to the table 35 ^a with the aid of a Intermediate piece 83 is attached. The component 82 has a circular opening that corresponds to the opening of the guide

BATH ORIGINAL

Bushing 81 is aligned »A slot-like opening 84 that opens extends transversely through the socket 81, forms a horizontal guide for a paper strip 85, from which the disc-shaped Linings 31 according to Figo 12 are made. A device 86 shown in FIG. Serves to carry the paper strip 85 with an intermittent movement through the guide opening 84 to move through; this device comprises drive means 86, which, according to FIG. 3, is driven from the intermediate shaft 45 via an eccentric 86a, an arm 87 and a coupling device not shown here.

The head 62 further includes a guide portion 91 which extends downwardly from the arm star 37 and has an outer cylindrical surface extending from the inner surface of the socket is enclosed with a close fit. A vertically movable circular knife 88 is attached to the lower end of the guide member 91 connected by screws 88a and cooperates with a stationary knife 89 below the paper strip 85, so that a disk 31 is cut out of the paper strip 85 when the arm star 37 is moved downward.

A scraper 90 is arranged within the movable knife 88, which is delimited in relation to the knife along a.

Q path is movable. More precisely, the knife is 88 on

beftätigt co lower end of a rod 90a, which is a close fit extends OBTN with * ·> through a bore of diameter portion and an expanded ^ shouldered central hole 91a of the guide member 91 '

^ A compression spring 92 is supported on the upper end of the knife part 88 and a ring 93 surrounding the rod 90a. An in

BATH ORIGINAL

-H-

an annular groove of the rod 90a built-in snap ring 90b limited the upward movement of the ring 93.

The upper end of the guide part 91 has a slot 93a, which is open on one side, around a splash 99a at the lower end of a guide bushing 99 The outer surface of the guide bushing 99 above the flange 99a is threaded and this is part of the guide bushing screwed into a threaded hole of a socket part 98 and secured by lock nuts 98a. The socket 98 extends down through an opening in the arm star 37. The upper end of the rod 90a protrudes into the vertical bore of the socket 99 and supports the lower end of a bumper 97 "which protrudes from the upper end" into the bore of the bushing 99.

According to FIG. 1, the upper end of the bumper 97 is provided with a bracket part 98. On the rod 97 is a compression spring 96 pushed, which biases the rod 97 upwards, the upward movement of the rod is limited by that the bracket part 98 cooperates with the upper end of a bracket 95, which is attached with its upper end to the arm star 37.

° The bracket part 98 is pivotable at one end

__i rod 94 connected by a bolt 94a with a fork

^ part 94b is connected to the upper end of a rod 94c, which

* »Protrudes upwards opposite the arm star 37. The part of the pole

"* 94" which is shown in FIG. 1 on the left side of the bolt 94a extends, works with a fixed adjustable stop 93

BATH ORIGINAL

at the upper end of the column part 56 together when the arm star 57 moved down. When this happens, the rod 97 is pivoted clockwise around the bolt 94a as shown in FIG. and in doing so the rod 97 is moved downward faster than the arm star 57, - whereby this speed difference thereby is enlarged that the ^ pivot pin 94a is arranged at a very small distance from the left end of the pivotable rod 94 is·

If the arm star 57 moves down, that works movable knife 88 with the paper strip 85 and the stationary one Knife 89 together, so that a lining disc 51 is cut out of the paper strip, which leads to the bottom of the Opening of the component 82 falls down, where it is followed by a down tapering step 82a is brought to a standstill · The Downward movement of the knife 88 is interrupted at a considerable distance from the cover blank 22 »after, however, the Once the liner 51 has been cut out, the pivotable rod 94 via the rod 97 causes the ejector 90 engages the liner disk 51 below the knife 88 in order to place the disk against the upper surface 25 of the cover blank 22 to press.

_o It should be noted that the liner disc 51 from Green
• D which is not shown in all figures for the sake of clarity.

"^ In many cases, extensions are provided · lids are not ^ provided with lining washers, but with an internal sealing ring, which is created by applying a liquid Material is generated that solidifies into a deformable material. Such a ring is attached to the lid after

bath

the bead and the appendages get their final shape to have.

The print head 64 shown in Fig. 5 for preparatory Rolling in of the lid rim at 25 comprises a generally bell-shaped one Component 101 which is fastened to the lower end of a vertical tube 102 which extends through the arm star 37 extends, in which it is stored in bearings 103 and 104 »With the tube 102 a pulley 105 is wedged, the above of the arm star 37. According to FIG. 2, a flexible belt 106 provides a drive connection between the pulley 105 and the pulley 107 of an electric motor, which is supported by a bracket 109 which is attached to the Arm star 37 is attached and movable together with this. The larger diameter lower section of the Component 101 carries at least one and preferably several axle stubs 110, in the present case three such axle stubs are provided which protrude radially inward and into are evenly spaced circumferentially. A push wheel 111 is freely rotatable on the inner end of each stub axle 110 stored; each push wheel is on its periphery with a suitably profiled groove 112 for receiving the free ones

Edge of the cover jacket 24 provided; the push wheels run up ο

^ the free edge of the cover shell, while a down

_ »Acting ■ '-' jerk is applied, so that the lid edge in the '"* -» at 25 indicated manner rolled up preparatory or after ο

£ J is turned inside.

The push head 64 comprises a tensioning element 114 »which is attached to the Attacks inner surface of the upper lid wall 23 to prevent

BAD oRIGINAL

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- 17 -

that sick the rolling member 22 rotates when it is detected by the push wheels 111. The tensioning element 114- is at the lower end of a rod 115 attached, which extends in the longitudinal direction through the tube. The threaded one, a smaller diameter The upper end section 115a of the rod 115 having a stop disk 116 ′ and a fastening nut 117 Compression spring 118 is pushed onto the inner end of rod 115; it is supported with one end on the tensioning element 114 and with its other end on a ring of a thrust bearing 119 so that the thrust bearing is pressed against the lower end of the tube 102.

During the operation of the apparatus for forming lids, the motor 108 is constantly in operation, so that the tube 102 rotates continuously about its longitudinal axis, and that the component 101 is also rotated. If the arm star 37 is in its highest position, the clamping element 114 is arranged above the free edge of the cover blank, when the arm star 37 moves downward, the clamping element 114 grips the upper wall 23 of the blank, and as the arm star moves further downwards the overheads 118 are compressed in order to increase the force exerted on the upper wall 23 by the tensioning element 114. With the further downward movement of the star arm O ₀ 37 , the free edge of the cover shell 24 is in engagement with the

- * Grooves 112 of the push wheels 111 made. Since the push wheels 111 ^ are freely rotatably mounted on the stub axles 110 »they can ο

Roll £ J on the free edge of the jacket 24, applying a downward jolt to the jacket so that the grooves 112 advance the edge in the manner indicated at 25.

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- 18 fold inwards or roll up in preparation »

The head 66 shown in FIG. 6 for forming the flange comprises a disk-like inner tool part 131 which is slidably mounted in an annular outer tool part 132. The tool part 132 is connected to the component 133 • by screws 134, and the member 133 is in threaded connection with the lower end of a rod 135 "The \ rod 135 extends parallel to the central column portion 36 and through the Armstern 37» mitndem through Nuts 136 and 137 are connected, which cooperate with a washer 138 and * · a bushing 139 carrying a flange. A screw 140 arranged coaxially with the rod 135 connects the inner tool or die part 131 to the component 133 so that the tool part 131 can move relative to the component 133 to a limited extent along the axis of the rod. Several compression springs 141 arranged between the tool part 131 and the component 133 bias the tool part 131 downwards relative to the component 133 »

When the Armstern moved during operation of the device 37 downward, the inner tool member 131 engages the liner disc 31 on, whereupon the movement of the tool _D is partly interrupted 131 "However, moves the Armstern" further down, wherein he outer the Tool part 132 takes with it. The annular notch 142 of the tool part 132 ^ \ near the circumferential surface of the tool part 131 takes on the

_{Λ on the} inside folded edge 25 of the lid and presses it. so inwardly that a flange 26 is formed which, as shown in FIG. 13, has a downwardly directed edge. The inward movement of the

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inwardly folded edge 25 during the forming of the flange 26 is through the outer edge of the inner tool part 131 limited.

The head 68 shown in Fig. 7 for partially forming the bead 27 and the extensions 28 comprises a movable interior Tool part 151 and a movable outer tool part 152. A rod 150 for supporting the tool parts 151 and

152 is connected to the arm star 37 in the same way as the rod 135 of the head 66 «Furthermore, the" connection corresponds the tool parts 151 and 152 with the rod 150 of the described connection between the Yiferkzeugteile 131 »132 and the Rod 135. The outer tool part 152 is provided with a gapless angled recess 153, which is the peripheral surface of the inner tool part 151 is adjacent. The deepening

153 has a greater depth at four points at 154 that are evenly angularly spaced. If the arm star 37 is moved downward, the outer tool part 152 engages the flange 26 of the lid, the shape of the relatively shallow Depression 153 over the greater part of its length causes the bead 27 to be partially formed, while the comparatively deeper sections 154 the partial formation of the

Cause extensions 28 »
ο
ο

™ The head 70 shown in Fig. 8 for the final shape

Exercise of the bead and the appendages includes an inner tool-o part 161 and an outer tool part 162. The inner work- • tool part 161 is fastened to the lower end of a rod 163 which is fastened to the arm star 37 through a longitudinal bore Rod 164 protrudes. One on the top of the rod 163

Unscrewed nut 165 engages the upper end of rod 164 to limit the downward movement of the rod 163 screwed to the inner tool part 161. Along the axis of the Rod 163 extends an ejector device 166 with an ejector pin pretensioned downward by a compression spring 168 167. Screws 169 connect the outer tool part 162 with the component 171> with a spacer 172 in between ^ is ordered.

Compression springs -173, which are attached to the lower part of the component 171 attack, are supported on an outwardly protruding flange at the upper end of a bushing 174, the thickened lower end The downward movement of the bushing 174 is limited by the fact that this splash with an inward protruding shoulder of the spacer ring 172 cooperates. The lower outer edge of the socket 174 is beveled and can with co-operate inclined surfaces on the inside of fingers 175, around the lower ends of the fingers around the bearings 176 of the fingers for a purpose to be explained to pan. The bearing pins 176 are in a section 161 a of the inner tool part 161 installed. When the head 70 according to FIG. 8 is in its upper position or the rest position

_o finds, the fingers 175 are completely in the designated area

cd recesses of section 161a.
co

* "° If the arm star 37 after

^ is moved down, the tool part 161 comes first

- ^ Attachment to the partially formed lid. When the downward movement of the inner tool part 161 is interrupted, moved

the component 174. further down, where "at its beveled lower surface cooperates with the squatting surfaces 175a of the fingers 175, so that the free ends 175 "b of the fingers are pivoted outwardly about the pivot pins 176. For each of the partially formed extensions .28 a finger 175 is provided. When the ends 175b of the fingers by the "curling effect described." are pivoted outward, they are placed under the partially shaped extensions 28. If the arm star 37 is moved further downward, the outer tool part 162 becomes brought into abutment with the partially formed bead 27 and the partially formed extensions 28, and thereby the bead 29 and the extensions 30 brought into their final form during During this operation, the extensions 30 are supported from below by the ends of the fingers 175b.

The following is the overall operation of the gate direction in particular with reference to FIGS. 1 and 2 described .. The horizontal te, upper strand 201 of a according to FIG. 2 in the direction of the Arrow-A moving endless conveyor belt guides the device the blanks 22 to and removed. finished cover 20 from the Contraption. The upper strand 201 of the conveyor belt is at a small distance below a. Lock 202

■ -.- .. arranges that. Extends over the table 55 * The back and forth hero '.... .._._.....

° moving movement of the feed _{fingers 61 is:} coordinated with the intermittent movement of the table 55 so that the

^ Finger 61 of FIG. 2 is moved in the direction of arrow B when

££ table 55 is brought to a standstill. When moving forward the finger 61 brings a blank 22, which is in the vicinity of the lock 202, on the table 55 and into a

Recess 56 of the table, which at the relevant point in time is aligned with the longitudinal axis of the i'i'ngers 61. According to FIG 22 is pressed firmly against the bottom of the recess in question _o

After a blank 22 in a recess 56 of the table 55 has been inserted, the table successively performs Winke1 movement steps from 30 ° each »After two such steps have been carried out, the newly inserted blank is located 22 in alignment with the head 62 for cutting out a lining panel 31 and for inserting the panel into the Blank 22nd! Times the fourth step is the blank 22 in alignment with the push head 64 for the preparatory rolling in of the edge of the lid. After the sixth step, that's it Blank 22 in alignment with head 66 for forming the flange. After the eighth step, the blank 22 is in alignment with the head 68 for preforming the bead and the extensions » After the tenth step, the partially formed lid is in alignment with the head 70 through which the Lid is brought into its final shape.

if you are at table 55 between the eleventh and twelve

th step moved, the finished cover 20 is first up

■ ■ · ■ "- ■ -"" ^: - ejected from the relevant recess 56 and then closed

■ "■" - "-" ■
brought to the upper strand 201 of the conveyor belt “With others

■ "-. ■■ ... .-. ..- ■■ ·. ■ - words, during the movement between the eleventh and the twelfth station, a bearing ball 58b, which protrudes from the lower end of the projection 58a, moves afterwards above via a stationary component 204 with an inclined surface, the base part

is raised so far that the cover 20 is at a small height above the top of the table 55. The base part 5.8 maintains this elevated position as long as the bearing ball 58b with the elevated horizontal part 205 at the upper end of the inclined surface 204 is in contact. While the cover 20 is in this raised position and the table 5b moved, the lid is moved by a curved surface on the left side of a finger used to remove the lid 207 detected, and the resulting reaction force causes the cover 20 along the in Fig. 2 by the curved The path indicated by arrow G moves so that it leaves the table 55 and moves to the part of the conveyor belt 201 which is moving on the left side of the finger 207.

It can thus be seen that the invention provides a novel method and a novel device for overriding lids or closure caps provided with extensions. Here wird.der lid made of a blank, which is fed to the device and detected by a holding means, said holding means only then releases the blank and the lid, when the bead and the extensions have received their final form ₀ The quality of the lid produced is improved in that several working steps J ₀ is not in a single operation carried out special -α said divided into a greater number of steps be ^. For example, the bead and the extensions are in

ο.

££ partially molded in one operation, then in a separate one Operation to be brought into its final form.

- - 24 -

Although you could according to the invention provided with extensions and a liner cover using a Produce annular transport device that performs a complete revolution in only six steps, but can You can achieve a higher production speed without reducing the quality if you have a transport device is used, which makes a complete revolution in twelve steps. Here are the small steps of the ring-shaped Transport device a function of the diameter of the lid to be produced and the diameter of the transport device. While it is desirable to use an annular transport device of as small a diameter as possible, one can do not affect the diameter of the lid, so you have to dimension the device so that it allows lid with to produce the largest required diameter. Second, the dimensions of the various working heads 62 make it 64, 66, 68 and 70 required to provide certain minimum distances. It has been shown that these minimum distances the One to two times the spacing required between the largest lids that would normally be produced are. Thus, the distances between adjacent working heads are chosen so that they are twice the angular movement

° correspond to the steps of the ring-shaped transport device.

oo The use of the drive units described with reference to Fig. 2A

device allows the table or the ring-shaped

Transport device 55 can be moved in short, fast steps _, gen, so that it is advantageous to the table 55 at every step to feed a blank and one for every second step

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- 25 -

To have an operation carried out on the relevant cover However, every time the table is idle. 55 the the arm star carrying the working heads is moved downwards so that the working heads unite during every pause in movement of the table Carry out an operation. -

It should be noted that in the above-described Embodiment can provide various changes and modifications without the scope of the invention leaving.

O> ■ ■■■■■■ -. :. ■ - -:. - - ■■■■.-..- ■.

- * Patent claims:

Claims (1)

- yr - 160251 PATENT CLAIMS 1. ■ A method for producing a closure cover provided with port sets from a blank made of metal with a circular upper surface and a cylindrical dumbbell ending in a raw edge, characterized in that the jacket is partially folded inwards along its raw edge "or is rolled up, so that a splash arises, that afterwards a first device is brought into action on the splash in order to convert parts of the flange that are separated by distances into partially shaped port sets _v that cooperate with a container and additionally lying between these partially shaped port sets To roll up sections of the flange further so that these sections are processed into partially formed bead sections, and that a second device is then brought into action to give the partially shaped port sets and the partially shaped bead sections their final shape, so that a finished one Closing cap or a cover according to does. ο 2. The method according to claim 1, characterized in that g e k e η η - draws that the splash is formed by the fact that a- ' j ne pushing device to grip the raw edge of the lid. j> jacket is brought to bend the band inward, and γ '■ ■ ·' - ■■■■ '■. ■ · - · ■: ■: ■:. ■ - ■■ ·. . * that then a punching device is brought into action on the edge in order to continue the bending of the edge inward to form the aforementioned splash. ORIGINAL [WSPECTED 3. The method according to claim 1, characterized in that g e k e η η ζ -e-i without * that the raw part with the help of a workpiece holding device is detected while the jacket of the raw part up to its raw JLante is essentially at right angles the upper surface extends, and that the workpiece holding device holds the blank continuously until the closure cap has received its final form A- 'Method according to claim 3 »characterized in that a disc-shaped lining is introduced into the blank after the workpiece holding device has gripped the blank and while the jacket of the blank extended to its raw edge essentially at right angles to the upper surface of the blank 5. The method according to claim 4, characterized in that that the shaping of the flange comprises measures to engage a pressing device on the raw edge of the shell to leave, by means of which the edge is bent inward, and that then a starting device to act on the edge is brought to continue the bending of the edge inwards to form the flange mentioned 6. Device for ^ creating a closure cap from one Unmachined part made of metal with a circular upper surface and a cylindrical jacket ending at a raw edge, identified by g e by several working heads (62, 64, 66, 68, 70), a device serving to hold a blank (55) which is movable along a predetermined path and brought into alignment with each of the working heads "· COP ^% / BAD LOCAL can, with the working tip between one of the mentioned Web distant rest position and a working position can be moved in which they are held by the holding device Detect raw parts and perform operations on them, a drive device by means of which the movements of the Holding device and the working heads are coordinated so that the holding device is then stopped, when the working heads move in the direction of the mentioned path, and that the holding device is moved in each case, when the working heads take their position remote from the mentioned path, the first working head being a device for preliminary curling of the raw edge of the shell of a raw part, the second working head comprising means for reshaping the partially curled edge of the jacket into a puddle, the third working head comprising means for partially forming a bead and port sets spaced apart on the surface of the mantle of the Blank comprises, and wherein the fourth working head a device comprises, by means of which the partially shaped bead and the partially shaped extensions are brought into their final shape will. 7. Apparatus according to claim 6, marked- _<D net by a movable support (37) with which all- - »borrowed working heads are connected, as well as by a facility, "» · By means of which the movable support between an upper ο - £ J and a lower position can be moved, the Working heads take their rest position when the moving Support is in its upper position, and where the working heads take their working position when the movable "support is in its lower position · 8. The device according to claim 7 »characterized in that the device for .preparenden curling the raw edge of the shell of the raw part a pressing device comprises, and that a device is provided by means of which the printing device is continuously driven is while the first working head moves from its rest position to its working position. 9. Apparatus according to claim 7 »characterized by a table on which the holding device is arranged, a device by means of which the table is rotatably mounted about a vertical axis, wherein the working heads above the table in the form of a surrounding the vertical axis Wreath are arranged, wherein the drive device comprises a worm wheel (48) and Bewegungsabnähmeorgane (49), the are rotatably mounted on the table and can be driven by the worm wheel, as well as a device through which a horizontal axis is established around which the worm wheel is continuously and with a uniform axis during each revolution Speed is rotated - with the worm wheel has a modified thread, by means of which the table is driven intermittently via the motion pick-up organs - ■ ■ " so that it carries out uniform angular movement steps, whereby the table is stopped between successive movement steps. '- copy 160251 10, device according to claim 7, characterized by a table on which the holding device is arranged is, a device by means of which the table is rotatably mounted about a vertical axis, with the working heads the vertical axis around in the form of a circular ring are arranged, wherein the drive means drives the table intermittently so that it is smooth angular movement steps executes, whereby the table is stopped between successive movement steps, with the working heads are separated from each other by such distances that the table must perform several of the mentioned movement steps to one certain part of the holding device between adjacent working heads, i.e. the first, the second, the third and the fourth working head to move. 009817/0261 e rs e ί te