EP0891280B1 - Clinchen unrunder dosen - Google Patents

Clinchen unrunder dosen Download PDF

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Publication number
EP0891280B1
EP0891280B1 EP97908134A EP97908134A EP0891280B1 EP 0891280 B1 EP0891280 B1 EP 0891280B1 EP 97908134 A EP97908134 A EP 97908134A EP 97908134 A EP97908134 A EP 97908134A EP 0891280 B1 EP0891280 B1 EP 0891280B1
Authority
EP
European Patent Office
Prior art keywords
clinching
cover
supporting
lid
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97908134A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0891280A1 (de
Inventor
Hans-Dietrich Politt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maiko Engineering GmbH
Original Assignee
Maiko Engineering GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE29604478U external-priority patent/DE29604478U1/de
Priority claimed from DE1996109506 external-priority patent/DE19609506A1/de
Application filed by Maiko Engineering GmbH filed Critical Maiko Engineering GmbH
Publication of EP0891280A1 publication Critical patent/EP0891280A1/de
Application granted granted Critical
Publication of EP0891280B1 publication Critical patent/EP0891280B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/285—Securing closures on containers by deformation of the closure
    • B65B7/2857—Securing closures on containers by deformation of the closure and the container rim

Definitions

  • the invention relates to the field of packaging technology and the clinching process precedes a folding of the lid and fuselage edge.
  • non-circular cans and especially elongated cans with straight side areas are increasingly thin sheets, for example made of aluminum. Examples are the classic ones deep-drawn fish cans. After filling such cans with the respective content the lid is usually clipped onto the lower part of the can, whereupon that Lower part of the can together with the lid of the sealing machine (folding machine) is fed.
  • the cans are attached using a chain Carriers moved to the clinching station (and then further) while the Cover is moved towards the cans and onto them with the help of a second chain be put on.
  • the cover chain then runs empty through the clinch rollers Clinchstation itself and is then returned. Therefore they are Options for supporting the lid from above are limited.
  • the Clinch rollers because they are powerless, have to do this with high precision Point in time along the can at which the stamp is in the Lid core is located. Furthermore, the speed at which is successful and can be clinched without significant committee, clearly limited: if the Carrier releases the can, "slides" on the relatively smooth surface (a rougher would scratch the bottom of the can) due to the existing impulse a small one Uncontrolled route. Then she has to go back to the Normal speed can be accelerated. At high machine speeds the resulting inaccuracy increases due to the higher impulse.
  • FR-A-2 584 675 already has a support disk which can be driven in the middle on its side Circumferentially arranged support elements known, the profile sole when clinching in the Immerse the mirror of the lid to be clipped on.
  • this profile sole has one recess extending almost over the entire cover mirror, so that only a narrow circumferential area is available as an effective counter pressure element and therefore the bulging of the lid when clinching, especially in medium-sized ones Areas cannot be safely prevented.
  • this object is achieved by a support disc according to claim 1 Clinching device according to claim 6 and the method according to claim 9 or 13 solved.
  • the support disc can be driven in the middle and can be used with the drives for the Coupling clinch rollers, for example via a common shaft, the Drive forces are transferred from the shaft to the clinch rollers via a bevel gear drive can be and the support disc is driven directly by the shaft.
  • the Lid transport chain will appear shortly after the place where you put the lid releases, led away and returned so that it does not run through the clinching station (Claim 6).
  • the support disc can be used as a wheel or in another on a cylinder with relative low axial expansion based form.
  • She points to hers Includes at least one support element, which in turn has a profile with the vertical forces that may be acting on the lid core from below can be effectively collected so that the lid does not bulge will (claim 1).
  • the profile sole of the support element is shortened, so that each front and / or back in the more domed areas of the can Stay millimeter free.
  • the support element can be in a specific configuration in the direction of Be undercut towards the center of the pane (claim 4).
  • the width of the support elements (in the axial direction is preferably the Support disc) dimensioned so that the lid core completely or almost completely filled laterally becomes. So that the support disc can also absorb horizontal forces from the Clinching rolls when clinching and in the section of the lid edge in which each clinched will go out.
  • each support element is a cylinder circumference segment educated. While the cans "drive” into the clinching station, the turns Support disc in the same direction as the linear movement of the can.
  • the profile sole of the Support element is rolled on the can lid from front to back and comes thus in a strip which moves linearly on the cover (claim 8) the overall process considered to lie "over its entire surface of the cover", while the clinch rolls the straight long sides of the can in the same Clinch direction from front to back.
  • the cans keep theirs Throughput speed essentially at.
  • the drives for the clinch rollers are set so that the can when Clinching is accelerated slightly (claim 13). Scratches as a result of the changed This prevents loads resting on the driver.
  • the support disk preferably has a plurality of support elements. For example, you can three support elements may be provided. The number actually chosen should be of scope the support disc and the distances with which the can bodies are guided, be made dependent. The disc is preferred with such Speed driven that a circumferential rotation divided by the number of Support elements corresponds exactly to the distance between two cans guided to the clinching station (Claim 12). The angular velocity of the tread soles should Support elements match the speed of the can run as possible.
  • the support disc can be the support element (s) as an integral part contain. But it is also possible that the support elements are removably attached, so that when changing the can size the appropriate matching cans Support elements can be attached.
  • the support elements can be used in such Cases attached via bolts, screws or the like.
  • the support disc 1 is driven in the center, for example by means of a shaft, not shown here, which runs through the circular recess 2.
  • the support disc is based on a substantially cylindrical shape with a radius R and a thickness or thickness between D and D '.
  • each one Length L (in the circumferential direction) should be significantly less than that Lid core should be.
  • the support elements 4, 4 ', 4 " have one opposite cylindrical inner shape of the support disc itself significantly widened Profile ("profile sole") 8,8 ', 8 ", which can be adapted to the dimensions of the respective lid core should.
  • the three support elements are regularly spaced 120 ° apart, arranged.
  • the profile soles have a length L of a little less than 60 °.
  • the direction of rotation of the disc 1 is indicated by the arrow 5.
  • the support elements 4 come first with the front part 6 on the Front part of the can lid mirror (strip 46 in Figure 4) to lie and then roll on the cover core running in the same direction up to the rear part 7 (strip 47 in Figure 4), while simultaneously clinching rollers 30,31 on the edge of the lid and can intervene along, caused by the linear linear movement v.
  • the print is the edge of the recess 10a, 10b, 10c, 10d (short: 10) each shown in dashed lines and surrounded with a minor security edge or strip the cover ring 21. Also on both sides of the Profile sole 8 'recesses can be provided so that the direction of retracting can or the orientation of the supplied lid has no relevance.
  • the second exception area 10a ' is shown as an example in FIG. 3a. He is lying mirror-symmetrical to the central plane of the Can lid, which is shown in supervision in all figures 3.
  • the position of the grip tab 21b is provided at an angle of approximately 45 °, the tear-open tab of the grip tab 21b pointing into the rounded corner region of the can lid 20b, which is smaller in area.
  • a recess 1 Ob ' which in this case is rotationally symmetrical in the opposite corner and is oriented in this direction, which corresponds to the recess 1 Ob into which the grip tab 21b just fits.
  • the recess 10b '(and also the recess 10b), if they protrude far into the rounded corner region, can also be extended completely into the corner region, which is illustrated by the dashed-line shape 10b ".
  • FIG. 3c shows a polygonal shape of the recess 10c that fits the grip tab 21c, here the size of the recess and the remaining free space for the grip tab 21c are larger, due to the selected line sections that are composed, but the recess can more easily enter the profile sole 8 , 8 ', 8 "of the support element 4.
  • the recess 10d is shown in FIG. 3d, with an associated tear-open handle 21d in the cover mirror (cover core) 20d.
  • the recess 10 in FIG. 2 is therefore only a schematic illustration of all of the recesses explained in FIG. 3 and in each case dependent on the position, the direction and the shape of the mounting ring of the cover. Further small recesses can be provided if the cover carries elevations for stiffening, but they are small in relation to the total area of the profile sole.
  • the cross-section of the profile sole 8 'in FIG. 2 can be clarified in more detail, with regard to the rearward-facing relocations 9a, 9b (Undercuts), which is a hat-shaped shape by a flat front Support area of the tread sole and a recessed intermediate support section define which opens into the inner disc 1 with diameter D '. That disc can once again in the middle, in its axial - the axis is at 100 designated - extent reduced to the attachment through the central opening 2 to facilitate.
  • the reduced extent is D, the step over D ', the width of the Intermediate section of the support element 4 'and the even wider profile sole 8' in Axis direction 100 extended from the inside to the outside.
  • the can which is shown in top view in FIG. 4, corresponds - as an example - to the can from FIG. 3b with a left to left upward and at an angle of approximately 45 °, the drawing ring 21b, which in the recess 10b of the Profile sole 8 fits.
  • the profile sole 8 is in Figure 1 in a front region 6 and a rear area 7 shown, based on the direction of rotation 5. This front Area 6 engages with the lid 20b in FIG.
  • the strip-shaped area 46 shifts during the movement the can, which has the linear movement v, over the cover mirror 20b and one Another snapshot is in Figure 4 in the rear part of the lid mirror 20b shown.
  • the rollers 30, 31 clinch the same rollers that are not relocated which are only offset laterally to describe the linear movement of the can
  • the rear area 7 also grips the strip Can lid, forms a support strip 47, as in the inlet area with the initial support strip 46 was the case; only in this momentary picture is that Support strips due to the design of the profile sole 8,8 ', 8 "continuously, because none Cover ring 21b is to be taken into account and the profile sole 8 here no recess 10b to have and does not have.
  • the sliding of the strip S over the lid core 20b almost detects that the entire area of the lid core, not with regard to the snapshots at the same time, but via the movement of the can body through the Clinch station accumulated through.
  • the surface area which is covered by this strip-shaped support zone S is designed such that the cover format of FIG. 3a has a support area of approximately 75% of the cover surface (without the second recess 10a '), that the shape of the Figure 3b has a coverage of about 60% (without the second recess 10b 'or 10b ") and that Figure 3c also reaches about 60% (slightly less) of area coverage, it should be noted that the smaller the lid surface, the Percentage of coverage is slightly reduced, but in any case remains above 50%, even with the smallest commercially available lid format, because the lid flap will always have a certain size (due to the size of the human finger) and is therefore covered takes up a larger space on the lid mirror 20 as a percentage of the lid size.
  • the circumferential speed 5 at the height of the radius or diameter of the profile sole 8 is approximately the speed that the can has as speed v when it moves into the clinching station.
  • the strip S shown in FIG. 4, the one arriving in two snapshots Stripe 46 and expiring stripe 47 is shown in its extension to the Interventions of the clinch rollers 30.31 to adjust. Due to the large radius R of the Support disc 1 is usually achieved a strip-shaped support area that is wider than a line (the hypothetically and purely mathematically the only connecting element a curved area with a plane that is tangent); this Support area will become wider (in the direction of advance of the can), the thinner and softer and therefore the more flexible the lid material and the higher the inside is the lid mirror 20b acting pressure. The bigger it will be, the bigger is the radius R of the support disc 1 and moves according to physical considerations at the same speed v over the lid as the can on the Clinch rolls past 30.31.
  • the moving line drawn in dashed lines Strip S illustrates this in FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP97908134A 1996-03-11 1997-03-11 Clinchen unrunder dosen Expired - Lifetime EP0891280B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE29604478U DE29604478U1 (de) 1996-03-11 1996-03-11 Clincheinrichtung zum Clinchen unrunder Dosen sowie Stützscheibe hierfür
DE19609506 1996-03-11
DE1996109506 DE19609506A1 (de) 1996-03-11 1996-03-11 Verfahren zum Clinchen unrunder Dosen sowie Stützscheibe hierfür
DE29604478U 1996-03-11
PCT/DE1997/000477 WO1997033793A1 (de) 1996-03-11 1997-03-11 Clinchen unrunder dosen

Publications (2)

Publication Number Publication Date
EP0891280A1 EP0891280A1 (de) 1999-01-20
EP0891280B1 true EP0891280B1 (de) 2000-07-12

Family

ID=26023676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97908134A Expired - Lifetime EP0891280B1 (de) 1996-03-11 1997-03-11 Clinchen unrunder dosen

Country Status (5)

Country Link
EP (1) EP0891280B1 (da)
AT (1) ATE194564T1 (da)
DE (2) DE59702011D1 (da)
DK (1) DK0891280T3 (da)
WO (1) WO1997033793A1 (da)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584675B3 (fr) * 1985-07-15 1987-10-09 Mecanique Sarl Ste Nle Dispositif de tassage et d'agrafage de fonds ou couvercles sur boites de conserve
DE29604478U1 (de) * 1996-03-11 1996-06-20 Schmalbach-Lubeca Ag, 38112 Braunschweig Clincheinrichtung zum Clinchen unrunder Dosen sowie Stützscheibe hierfür

Also Published As

Publication number Publication date
DE59702011D1 (de) 2000-08-17
DK0891280T3 (da) 2000-11-06
EP0891280A1 (de) 1999-01-20
ATE194564T1 (de) 2000-07-15
DE19780206D2 (de) 1999-05-12
WO1997033793A1 (de) 1997-09-18

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