US3203152A - Packaging machine - Google Patents

Packaging machine Download PDF

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Publication number
US3203152A
US3203152A US176572A US17657262A US3203152A US 3203152 A US3203152 A US 3203152A US 176572 A US176572 A US 176572A US 17657262 A US17657262 A US 17657262A US 3203152 A US3203152 A US 3203152A
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United States
Prior art keywords
tightening
movement
tightening element
linkages
articles
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
US176572A
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English (en)
Inventor
Richard T Wilcox
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.)
Mead Corp
Original Assignee
Mead Corp
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 to BE629040D priority Critical patent/BE629040A/xx
Priority to NL289598D priority patent/NL289598A/xx
Application filed by Mead Corp filed Critical Mead Corp
Priority to US176572A priority patent/US3203152A/en
Priority to GB7049/63A priority patent/GB1037692A/en
Priority to FR926054A priority patent/FR1348860A/fr
Priority to DK86963AA priority patent/DK109858C/da
Application granted granted Critical
Publication of US3203152A publication Critical patent/US3203152A/en
Priority to MY1969376A priority patent/MY6900376A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/105—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the axis of the tube being parallel to the conveying direction

Definitions

  • FIG. 4 RICHARD T. WlLCOX ATTORNEY 4 Sheets-Sheet 4 Filed March 1, 1962 FIG. 9
  • This invention relates to packaging machines and more particulaly to a wrapper tightening and locking mechanism for use on machines of the type in which a group of articles to be packaged are wrapped within a wraparound blank.
  • a principal object of this invention is the provision of an improved tightening and locking mechanism for tightening and locking a wrap-around type blank about a group of articles to be packaged, the machine being specially adapted for quickand easy dimensional adjustment by simple procedures to accommodate articles of different sizes which are to be packaged.
  • Another object of the invention is to provide an improved mechanism for tightening a wrap-around type blank about a group of articles to be packaged which is specially adapted to perform an eiiicient blank tightening operation but which is not characterized by a high degree of precision as to its time and space requirements.
  • the invention in one form as applied to a tightening mechanism for a carton of the wrap-around type comprises a movable tightening element which engages an opening formed near the end of a wrap-around type blank and which moves in a direction to effect tightening, a pair of spaced movable support elements which are interconnected with the tightening element, and a thrust linkage connected with each of the support elements,
  • each of the linkages being arranged to impart operating movement to its associated support element and in turn to the movable tightening element, the movement imparted by each thrust transmitting linkage being in a different and generally transverse direction to the movement imparted by the other thrust transmitting linkage.
  • each of the thrust linkages is motivated by a common operating shaft and in this way improved coordination is achieved.
  • the fact that the motion of the tightening element is imparted thereto by two separate thrust linkages makes it possible to adjust the starting point of the operating movement as well as the length of stroke of each linkage and of each support element. By this means quick and easy adjustment may be effected without requiring the services of a skilled technician.
  • the dimensional relationships are not critical the adjustment need not be as precise as it might otherwise be.
  • FIG. 1 is a side view of a packaging machine embodying the invention
  • FIG. 2 is a plan view of a carton blank which is used in conjunction with the machine of FIG. 1
  • FIG. 3 is an end view of a completed package formed on the machine of FIG. 1 and utilizing the blank depicted in FIG. 2
  • FIG. 4 is an end view of the machine as seen from the left hand side of FIG. 1
  • FIG. 5 is a detailed cross sectional view taken along the line designated 5-5 in FIG. 4
  • FIG. 5A is a detailed cross sectional view taken along the line designated 5-5 in FIG. 4 which constitutes alternative structure to that depicted in FIG. 5;
  • FIG. 5 is a side view of a packaging machine embodying the invention
  • FIG. 2 is a plan view of a carton blank which is used in conjunction with the machine of FIG. 1
  • FIG. 3 is an end view of a completed package formed on the machine of FIG. 1 and utilizing the blank depicted in FIG. 2
  • FIG. 4 is an end view
  • FIG. 6 is an enlarged view similar to FIG. 4 but which shows only the locking and tightening linkage with other parts either removed or shown schematically;
  • FIG. 7 is a perspective view of one tightening element and of its associated thrust linkage and drive shaft;
  • FIG. 8 is a perspective view of the locking mechanism and its driving linkage; and in which FIG. 9 is a schematic overall view showing both the locking and tightening mechanisms in a unitary system.
  • the numeral 1 generally designates the frame of the machine. As a part of the frame upright elements 2 and 3 are arranged so as to support a generally horizontally disposed beam 4. As can be seen from FIG. 4, a similar upright 5 is mounted on the other side of the machine and aids in the support of horizontal beam 6. Mounted just above and supported by the beams 4 and 6 is a hopper structure generally designated by the numeral 7. Carton blanks 8 are mounted within the hopper 7, such blanks being depicted in FIG. 2.
  • the carton 8 is disposed about a package group with panel A forming the top of the package with panels B and C constituting the sides and with the panel E and the panel D in overlapping relation at the bottom so that in order to effect a locking of the wrapper the locking elements designated F1, F2 and F3 must be driven through the apertures defined by the retaining tabs and designated G1, G2 and G3.
  • a starwheel 9 is rotatably mounted on a shaft 10 which is driven by suitable mechanism including a gear box 11.
  • This invention is concerned primarily with the tighten ing of the lap panels D and E underneath the package group and with the locking of these panels to each other.
  • the apertures H formed in the lap panels D and E are engaged by tightening elements which are controlled by suitable means which is readily adjustable and which moves along a controlled path so that critical adjustment is not necessary.
  • a driving motor 16 through a driving chain 1'7 imparts rotary motion to shaft 18 and by means of chain 19 drives a shaft 26 which in turn through chain 21 imparts rotary motion to the main drive shaft 22.
  • drive shaft 22 is of the so-called splined type to accommodate longitudinal adjustment.
  • one element 23 may be formed of a hollow construction and an inner element 24 may be slidably mounted within the outer element 23.
  • the inner element 24 may be slotted as indicated at 25 and the outer element 23 may be provided with a fixed pin or bolt 26 which rides in slot 25.
  • the parts of the shaft are adjustable to accommodate ready adjustment of the mechanism to be described hereinafter.
  • one tightening element is designated by the numeral 27 and is controlled by mechanism generally designated by the numeral 28.
  • mechanism generally designated by the numeral 28 it is possible simply to change the position of the mechanism generally designated by the numeral 28 with respect to the frame of the machine and in this way to render the tightening element 27 adjustable with respect to the bottom lap panel E of the carton 8.
  • the structure 23 may be adjusted from left to right as viewed in FIG. 4 due to the fact that the splined shaft 22 may be lengthened or shortened due to the structure as shown in FIG.
  • the shaft 22 could be provided with ribs or teeth 22a on its outer surface and the associated pinions could have complementary internal ribs or teeth 221) which would :allow for longitudinal but not rotary adjustment of the pinions on the shaft.
  • Such structure is conventional and is shown in FIG. 5A.
  • the operating element 27 is provided at its upper extremity with a pair of locking tabs 32 which are arranged to enter the openings identified at H in lap panel E in FIG. 2. These tabs 32 are adjustably mounted by bolts 47 to the crosshead 59 which forms a part of the tightening element 27. As shown in FIG. 6 the lap panel E is in its tightened position. Stated otherwise, the element 27 as depicted in FIG. 6 is shown as occupying its upper limit of travel and the position farthest to the left which it occupies at the end of an operating stroke.
  • the tightening element 27 is controlled by a pair of spaced movable support elements 33 and 34.
  • Support element 33 is pivotally connected with tightening element 27 by a pin 35 and at its right hand end is pivotally connected by a pin 36 to a thrust linkage.
  • the thrust linkage constitutes a crank 37 pivoted to a fixed pivot 38 and also pivoted by a pin 39 to a thrust link 40.
  • Thrust link 40 is adjustable along its major axis by suitable structure designated 41 and 42.
  • a pin 43 interrelates the lower end of link 40 with a slot 44 formed in a crank 45 which is pivoted at its right hand end .to a fixed pivot 46.
  • Crank 45 is operated back and forth about the fixed pivot 46 by a cam 48 securely affixed to the common shaft 31.
  • the support element 35 is arranged primarily to impart movement from left to right and vice versa to the locking element 27.
  • the support element 34 is pivotally connected by a pin 49 to the tightening element 27.
  • Support element 34 is mounted on fixed pivot 50 and is pivotally connected by a pin 51 to vertically adjustable link 52 which in turn is connected by a pin 53 and a slot 54 to crank 55 pivoted on pin 46 and operated about that pin by cam 56.
  • Link 52 is rendered adjustable by means designated by the numeral 57.
  • FIG. 6 An examination of FIG. 6 indicates that adjustment of the length of the vertical stroke of tightening element 27 is effected by the choice of location of pin 53 within slot 54. In like fashion adjustment of the left to right stroke of tightening element 27 is determined by the location of pin 43 in slot 44.
  • the starting point for the operating movement upward and toward the left of the tightening element 27 is determined primarily by the adjustment of the lengths of the link 46 and of the link 52, respectively, as Will be apparent from an examination of FIG. 6.
  • the mechanism may be arranged so that the tightening element 27 is first moved vertically upward and then horizontally toward the left.
  • This feature of the invention is quite advantageous as will be apparent from a consideration of FIG. 2.
  • the tightening apertures H are constructed with a triangular configuration so that the base H]. of each triangle presents a substantial dimension in the direction of movement of the carton as it moves through the machine of FIG. 1 from right to left.
  • the tightening tabs 32 disposed atop the tightening element 27 can move during its tightening stroke with but moderate precision due to the length of the base of the triangle designated H1. Subsequently, movement toward the left of the tightening element 27 moves the tabs 32 toward the apex of the triangle defined by sides H2 and H3 to complete the tightening operation.
  • the positioning of the package group as shown in FIG. 4 need not be quite so precise as it might otherwise have to be by virtue of the improved action of the tightening element of this invention as described above.
  • the tightening element 27 and associated parts are duplicated on the left hand portion of FIG. 6 and the left tightening element is designated by the numeral 27A. Since this tightening element 27A and all its associated operating elements are identical to the element 27 and its associated parts, it is not deemed necessary to describe element 27A and its associated parts.
  • FIG. 6 the locking structure is also depicted on the left hand part of the view in close proximity to the tightening element 27A.
  • the mechanism for effecting a locking of the tabs F into the openings defined by retaining tabs G is shown in perspective in FIG. 8 and is shown as viewed from the end of the machine in FIG. 6.
  • the locking bar 60 is provided with a number of locking fingers 61, 62 and 63. These locking fingers engage the locking tabs F1, F2 and Rs, respectively, and drive these tabs through the apertures defined by retaining tabs G1, G2 and G3, respectively.
  • the carton is formed as indicated in FIG. 3.
  • the locking bar 60 is secured to a locking arm 64 which is pivoted at a fixed pin 65.
  • the arm 64 is operated by a driving linkage comprising a link 66 which is pinned at 67 to the bar 64 and the rock shaft 68 which is connected to the link 66 by pin 69.
  • Link 66 is vertically adjustable as indicated at 70 and 71 and the rock shaft 68 is oscillatable about fixed shaft 33A.
  • the rocker 68 is connected to link 74 which as indicated at 75 and 76 is vertically adjustable.
  • Link 74 is connected by a pin 77 with an arm 78 which in turn is pivoted at the fixed shaft 79.
  • shaft 81 is a common shaft which operates the cam 80 and in turn the locking mechanisms shown in FIG. 8.
  • shaft 81 carries the earns 82 and 83 which respectively impart operating movement to the movable support element 33A and to the movable support element 34A and the respective linkages associated therewith.
  • shaft 38A is a fixed common pivot for both the locking crank 68 and the tightening crank 37A.
  • the tightening element 27 and parts associated therewith may be moved bodily due to the structure of the splined shaft 22 as depicted in FIG. 5 and that the various elements of the tightening mechanism may be adjusted so as to vary the length of the stroke as well as the starting point of the stroke insofar as both horizontal and vertical movements are concerned.
  • the fact that the mechanism is peculiarly adapted to take advantage of the relatively long dimension designated as H1 of the tightening apertures H as shown best in FIG. 2 also aids in rendering the machine readily adjustable without requiring the services at a skilled technician or without requiring special tools or special parts.
  • the tightening elements 27 and 27A together with their associated support elements such as 33, 33A, 34 and 34A may be moved bodily as individual units 28, enables an adjustment to be made for articles of different diameters or widths or for a different number of rows of articles to be packaged.
  • the units 28 are moved bodily outwardly away from each other as viewed in FIG. 4.
  • Such a movement is particularly advantageous because it does not change any relationships between any of the components with respect to each other or with respect to the driving mechanism.
  • Mechanism for tightening a wrap-around type of blank about a group of articles to be packaged comprising a movable tightening element, a
  • each of said linkages being arranged to impart movement to its associated support element which is in a different direction to the direction of movement imparted to the other support element whereby controlled resultant movement is imparted to said tightening element.
  • Mechanism for tightening a wraparound type of blank about a group of articles to be packaged comprising a movable tightening element, a pair of spaced relatively movable support elements pivotally interconnected with said tightening element, a thrust linkage pivotally connected with each of said support elements, each of said linkages being arranged to impart movement to its associated support element which is in a different direction to the direction of movement imparted to the other support element whereby controlled resultant movement is imparted to said tightening element, and a common operating shaft for imparting operating move ment to each of said thrust linkages.
  • Mechanism for tightening a wrap-around .type of blank about a group of articles to be packaged comprising a movable tightening element, a
  • each of said linkages being arranged to impart movement to its associated support element whereby controlled resultant movement is imparted to said tightening element, each of said thrust linkages being adjustable to vary the point of initiation of the operating stroke of its associated support element.
  • Mechanism for tightening a wrap-around type of blank about a group of articles to be packaged comprising a movable tightening element, a pair of spaced relatively movable support elements pivotally interconnected With said tightening element, and a thrust linkage pivotally connected with each of said support elements, each of said linkages being arranged to impart movement to its associated support element whereby controlled resultant movement is imparted to said tightening element, each of said thrust linkages being adjustable to vary the magnitude of the operating stroke of its associated support element.
  • Mechanism for tightening and locking a Wrap-around type of blank about a group of articles to be packaged comprising an elongated movable tightening element, a pair of spaced relatively movable support elements pivotally interconnected with said tightening element, a thrust linkage pivotally connected with each of said support elements, one of said support elements being bodily movable in a direction transverse to said tightening element and the other support element being pivotally mounted so that movement about its pivotal mounting imparts movement to said tightening element in the general direction of its major axis, whereby controlled resultant movement is imparted to said tightening element, a locking element movably supported adjacent said tightening element, an adjustable motivating linkage for imparting operating movement to said locking element, and a common operating shaft for imparting coordinated operating movement to said thrust linkages and to said motivating linkage.
  • Mechanism for tightening a wrap-around type of blank about a group of articles to be packaged comprising a movable tightening element, a pair of spaced movable support elements interconnected with said tightening element, a thrust linkage connected with each of said support elements, each of said linkages being arranged to impart movement to its associated support element whereby controlled resultant movement is imparted to said tightening element, and a common operating shaft for imparting operating movement to each of said thrust linkages, said mechanism being bodily movable in a direction generally parallel to said shaft in order to vary the point of application of tightening force to the blank by said tightening element without interfering with the operative relation between said shaft and said thrust linkages.
  • Mechanism for tightening and locking a wrap-around type of blank about a group of articles to be packaged comprising a movable tightening element, a pair of spaced movable support elements interconnected with said tightening element, a thrust linkage connected with each of said support elements, each of said linkages being arranged to impart movement to its associated sup port element whereby controlled resultant movement is imparted to said tightening element, a locking element movably supported adjacent said tightening element, an adjustable motivating linkage for imparting operating movement to said locking element, and a common operating shaft for imparting coordinated operating movement to said thrust linkages and to said motivating linkage, said mechanism being bodily movable in a direction generally parallel to said shaft in order to vary the point of application of tightening force to the blank by said tightening 'blank about a group of articles to be packaged, said" mechanism comprising a movable tightening element, a pair of spaced movable support elements interconnected with said tightening element, a
  • Mechanism for tightening a Wrap-around type of blank about a group of articles to be packaged comprising a movable tightening element, a
  • each of said linkages being arranged to impart movement to its associated support element whereby controlled resultant movement is imparted to said tightening element, and each of said linkages including a lever arm whose effective length is adjustable to vary the point of initiation of the operating stroke of the associated support element.
  • Mechanism for tightening a wrap-around type of blank about a group of articles to be packaged comprising a movable tightening element, a pair of spaced movable support elements interconnected with said tightening element, a thrust linkage connected with each of said support elements, each of said linkages being arranged to impart movement to its associated support element whereby controlled resultant movement is imparted to said tightening element and each of said linkages including an elongated link which is reciprocable in the general direction of its major axis and the length of which is adjustable to vary the magnitude of the op erating stroke of the associated support element and each of said linkages including a lever arm whose effective length is adjustable to vary the point of initiation of the operating stroke of the associated support element.
  • Apparatus for tightening a wrap-around blank about a group of articles to be packaged comprising a pair of tightening elements, a pair of support elements for each tightening element, an operating linkage for each support element, each pair of support elements and its associated operating linkages being bodily movable as a unit with the associated tightening element so as to adapt the apparatus for articles to be packaged which are of different diameters or widths or for a different number of rows of articles to be packaged.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
US176572A 1962-03-01 1962-03-01 Packaging machine Expired - Lifetime US3203152A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE629040D BE629040A (es) 1962-03-01
NL289598D NL289598A (es) 1962-03-01
US176572A US3203152A (en) 1962-03-01 1962-03-01 Packaging machine
GB7049/63A GB1037692A (en) 1962-03-01 1963-02-21 Packaging machine
FR926054A FR1348860A (fr) 1962-03-01 1963-02-26 Machine d'emballage
DK86963AA DK109858C (da) 1962-03-01 1963-02-26 Mekanisme til stramning af et emne af omslagstypen omkring en eller flere genstande.
MY1969376A MY6900376A (en) 1962-03-01 1969-12-31 Packaging machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US176572A US3203152A (en) 1962-03-01 1962-03-01 Packaging machine

Publications (1)

Publication Number Publication Date
US3203152A true US3203152A (en) 1965-08-31

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Application Number Title Priority Date Filing Date
US176572A Expired - Lifetime US3203152A (en) 1962-03-01 1962-03-01 Packaging machine

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US (1) US3203152A (es)
BE (1) BE629040A (es)
DK (1) DK109858C (es)
GB (1) GB1037692A (es)
MY (1) MY6900376A (es)
NL (1) NL289598A (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410397A (en) * 1966-05-10 1968-11-12 Dacam Corp Wrap-around carton and application of the same to articles
US3548566A (en) * 1968-05-23 1970-12-22 Olinkraft Inc Blank folding apparatus for wrap-around carton blanks having selectively operable lock means

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602924A (en) * 1947-10-23 1952-07-08 Airborne Instr Lab Inc Antenna field pattern measuring system
US2809484A (en) * 1956-06-25 1957-10-15 Atlanta Paper Company Method and means for packaging cans
US2809486A (en) * 1956-06-25 1957-10-15 Atianta Paper Company Means for securing wrapper blanks about article packages
US2933870A (en) * 1957-01-11 1960-04-26 Mead Packaging Inc Means for folding paperboard wrappers about objects to be packaged therein
US2936560A (en) * 1956-06-15 1960-05-17 Mead Packaging Inc Apparatus for packaging articles
US2953883A (en) * 1957-06-04 1960-09-27 Mead Packaging Inc Apparatus and method for automatically packaging articles in wrapper blanks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602924A (en) * 1947-10-23 1952-07-08 Airborne Instr Lab Inc Antenna field pattern measuring system
US2936560A (en) * 1956-06-15 1960-05-17 Mead Packaging Inc Apparatus for packaging articles
US2809484A (en) * 1956-06-25 1957-10-15 Atlanta Paper Company Method and means for packaging cans
US2809486A (en) * 1956-06-25 1957-10-15 Atianta Paper Company Means for securing wrapper blanks about article packages
US2933870A (en) * 1957-01-11 1960-04-26 Mead Packaging Inc Means for folding paperboard wrappers about objects to be packaged therein
US2953883A (en) * 1957-06-04 1960-09-27 Mead Packaging Inc Apparatus and method for automatically packaging articles in wrapper blanks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410397A (en) * 1966-05-10 1968-11-12 Dacam Corp Wrap-around carton and application of the same to articles
US3548566A (en) * 1968-05-23 1970-12-22 Olinkraft Inc Blank folding apparatus for wrap-around carton blanks having selectively operable lock means

Also Published As

Publication number Publication date
GB1037692A (en) 1966-08-03
MY6900376A (en) 1969-12-31
BE629040A (es)
DK109858C (da) 1968-07-15
NL289598A (es)

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