EP0048105A1 - Hochgeschwindigkeits-Einwickelmaschine - Google Patents

Hochgeschwindigkeits-Einwickelmaschine Download PDF

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Publication number
EP0048105A1
EP0048105A1 EP81303966A EP81303966A EP0048105A1 EP 0048105 A1 EP0048105 A1 EP 0048105A1 EP 81303966 A EP81303966 A EP 81303966A EP 81303966 A EP81303966 A EP 81303966A EP 0048105 A1 EP0048105 A1 EP 0048105A1
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EP
European Patent Office
Prior art keywords
product
sheet
path
wrapping
wrapper
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Granted
Application number
EP81303966A
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English (en)
French (fr)
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EP0048105B1 (de
Inventor
John E. Nordstrom
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Individual
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Individual
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Priority to AT81303966T priority Critical patent/ATE10352T1/de
Publication of EP0048105A1 publication Critical patent/EP0048105A1/de
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Publication of EP0048105B1 publication Critical patent/EP0048105B1/de
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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
    • B65B11/12—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 and then to form closing folds of similar form at opposite ends of the tube

Definitions

  • a great many wrapping machines are known in the art.but wrapping machines for such products as paper towels and napkins, rolls of tissue, and the like for wrapping individual products or groups of products have not been able to achieve the high speeds which are now needed to wrap economically the output of other machines now available for producing the products. Either it has been necessary to provide an undue number of wrapping machines and to divide product streams among them or other machinery must be operated at the speeds previous wrapping machines could sustain.
  • One reason for such limitations has been changes in the directions of movement of a product as it was being wrapped. Such a change imposes an upper limit on wrapping speed, particularly if the change is a deviation from the direction of movement of the product and then a return to the previous path. Stopping and starting of the product or great changes in speed impose similar limitations.
  • the invention provides apparatus for wrapping a series of products as they move on a conveyor along a substantially linear product path, comprising means for feeding wrapping sheets in timed relationship to the products to be wrapped such that each wrapping sheet is presented alongside its corresponding product with a leading edge and a substantial proportion of the wrapping sheet ahead of the product, means for moving the leading edge of the wrapping sheet across the product path ahead of the product, whereby the sheet is drawn across the front of and around the product by product travel so that the original leading edge of the wrapping sheet becomes a second trailing edge, and means for securing together the trailing edges of the wrapping sheet at the rear of the product.
  • One particular advantage of this apparatus is that it enables the product to move in a substantially straight line during wrapping and substantially at a single speed which allows very high wrapping speeds.
  • the apparatus has the advantage of producing a seal to secure the wrapper at the generally narrow rear face of the product or product group rather than on the generally broad top face, permitting a neater package with better arrangement of the text which appears on the wrapper.
  • the invention is advantageously used in conjunction with a novel transfer mechanism to move articles or groups of articles from a conveyor standing at any angle to the wrapping machine to the first conveyor of the wrapping machine.
  • This transfer mechanism is claimed per se in our copending European Patent Application numbered consecutively with this Application, and comprises a handling apparatus for articles wherein a handling arm is movable in a cyclic path that passes through an article handling zone, the arm movement being controlled by a linkage which comprises pivot means pivotally mounting the handling arm on a first rotary member, cam means fast to the handling arm, a cam follower mounted on a second rotary member in sliding engagement with the cam means, and drive means for rotating the first and second rotary members to drive the pivot means and the cam follower around mutually eccentric circular paths, wherein the circular paths .
  • the handling arms operate in the included angle between an infeed conveyor and the wrapping machine conveyor.
  • the handling arms are able to pick up an article or group of articles from the infeed conveyor and change their direction of movement to that of the wrapping machine either with or without a change in the orientation of the articles and without disturbance of a group of articles which are to be wrapped together, after which the handling arm retracts in a path that carries it sideways and out of the way of the wrapping machine, thereafter extending itself behind another product or group of products on the infeed conveyor to repeat the cycle without having to start and stop the product group for the direction change.
  • a variation of the same handling apparatus advantageously serves as a tucker in a wrapping machine according to the present invention, to make an end fold in which the tucker arm moves out and sideways as it retracts, to avoid pulling out the fold just made.
  • the parts are essentially the same as those of the transfer mechanisms excepting cam shapes.
  • One preferred means for drawing the wrapping sheet across the product path in the apparatus of the present invention comprises a pair of vacuum wheels positioned on opposite sides of the product path to grip opposite sides of each sheet by suction and, by rotation of the vacuum wheels, to draw the wrapping sheet across the product path before releasing the gripped sides of the sheet.
  • the vacuum wheels are toed out slightly from each other to grasp each wrapping sheet and draw-it across the product path while pulling laterally on it to impart a slight transverse tension to keep it smooth and allow as little sagging or billowing as possible.
  • a vacuum port open between the vacuum wheels assists by reducing air pressure ahead of fast moving products and behind the wrapping. Wrapping sheet transport belts may be angled.
  • Another novel and preferred feature for guiding the leading edge of the wrapping sheet as it is drawn across the path of the product comprises a belt having a portion of increased thickness for gripping the sheet more firmly as the sheet and the belt portion of increased thickness pass through the nip of cooperating rollers, that belt being driven in timed relationship with the feeding of the wrapping sheets and with the movement of the products along the product path so that the belt portion of increased thickness engages the leading edge of each wrapping sheet as it is stripped from the vacuum wheels and releases the sheet, by movement out of the nip of the cooperating rollers, as the product engages that portion of the wrapping sheet which is in the product path.
  • the machine of this invention has a number of sections which cooperate to achieve the overall result. Each of the sections will be described very generally and will then be described in greater detail. Unless the context indicates otherwise the word "product" refers either to a single article, such as a roll of paper tissue or towelling, or to a single group of articles to be wrapped in one wrapper.
  • the direction changing mechanism brings the product to be wrapped from an in feed conveyor extending from a different direction to conveying means in the wrapping machine which thereafter transport the product continuously in a single direction.
  • the direction changing means are unique in their mode of action in that although they change the direction of product movement, they do not change the orientation of the product, and do not significantly change its speed, utilizing a mechanical motion believed to be unique and which may be utilized in other devices, such as my tucker.
  • the product After entering the wrapper machine proper through the direction changing mechanism, the product passes beneath a wrapping film supply section (Fig. 14) fed from a roll of wrapping material from which sheets of wrapping film are cut and supplied to lie in a horizontal plane above the product supported by conveying structure that will be described later.
  • a wrapping film supply section (Fig. 14) fed from a roll of wrapping material from which sheets of wrapping film are cut and supplied to lie in a horizontal plane above the product supported by conveying structure that will be described later.
  • the wrapping film is supplied in a specific relationship to the product such that an amount of film sufficient to wrap the forward side, bottom and part of the back of the product extends ahead of the product as it moves down the conveyor, the remainder extending above and behind the product.
  • the wrapper is carried between pairs of belts moving beside the product at the same speed.
  • the lower wrapper carrying belts turn on vacuum wheels so the edge of the wrapping film is brought downward ahead of the product (Fig. 14) by engagement with the vacuum wheels which are rotating on either side of the product with axes that are not quite transverse to the conveyor but are skewed or toed outward slightly to create a slight outward pull on the wrapping film as it moves downwardly in contact with the vacuum rolls.
  • the vacuum wheels must grip lightly to prevent wrinkles.
  • the film As the product moves over the slot area in which the wrapping film was pulled downwardly, the film is pulled taut at the forward edge of the product and is .withdrawn from its downward extension into the slot to cover the bottom surface of the product as the product advances so that the film now extends in a horizontally disposed U from behind the product at the top around the top, front, bottom, to behind the product at the bottom (Fig. 2).
  • the upper stationary bars of the conveyor are selected from material and finish having slightly less friction than the lower stationary bars of the conveyor, with the result that with the film nipped between the advancing paddles of the conveyor and the back of the product, and greater friction on the lower portion of the film than the upper portion of the film, the film is gradually pulled around the lower side of the product a tiny amount which snugs the articles in the group tightly together and pulls the wrapping film tightly about them. (Fig. 21-22)
  • a secondary but still major objective is to seal the package so produced on a narrow edge which in the direction of product travel in my machine is a rear surface, particularly where multiple articles are being wrapped.
  • the rear surface being one of the narrow surfaces of the package this permits maximum printed display area on the broad surfaces of the package which is not defaced by a seal.
  • the objective is achieved regardless of the number of articles in a package, the number typically ranging from one or two 11 inch rolls of toweling through one, two, or four rolls of toilet tissue. Other articles may be wrapped.
  • Both the lower paddles and the upper paddles are discontinuous so that a mechanism can later come in to make a first attachment of the lower film to the upper film to retain the tight configuration of the wrapping about the product at a later time.
  • the wrapper is plastic film as generally described throughout, the mechanism is a tack welding wheel to bond the plastic.
  • Other wrapper stock and sealing means are possible.
  • Fig. 11 may represent the wrapping either of two rolls of towel or four rolls of toilet tissue.
  • Figs. 1 through 10 schematically represent the steps in applying the film to the product to form a complete package while Fig. 11 represents a view like that of Fig. 7 where more than one product is involved in the axial direction of product flow.
  • the linear path of product flow is the path extending horizontally from one end to the other end of the wrapping machine.
  • the product moves without substantial deviation in direction or speed while it is being wrapped.
  • the linear product path could be other than horizontal, but as the preferred form is here described the path is level.
  • the reason for having a generally linear product path is to allow very high speed wrapping of the product, at a rate much higher than accomplished by previous machines which do not have a linear product path or which started and stopped the product or substantially changed its speed during the course of wrapping. While linear flow and generally uniform movement of the product are important to high speed wrapping, they are by no means sufficient, as is shown in this application. Many innovative details were necessary to solve the problems of high speed wrapping, in addition to the general concept.
  • the basic axis of the machine will be taken to be the product path.
  • the directions will be referred to as side, lateral or transverse.
  • the remaining directions at right angles to the product path will be referred to as up and down.
  • right and left side, lateral or transverse directions will be taken to be directions-lateral to the first conveyor and (generally) aligned with the axes of the vacuum wheels, while up and down would refer to directions at right angles to those.
  • the wrapping machine proper begins with a direction changing mechanism 50 operating to move articles 53 from conveyor 51 which is an infeed conveyor, toward conveyor 52 which is the first element in the conveyors defining a linear product path on which products will be wrapped.
  • the direction changing mechanism includes L-shaped arms 54 secured to shafts 55 extending through respective bearings in rotating member 56 which is rotated about a bearing 57.
  • a cam plate 58 having a cam slot or track 59 is rigidly secured to the top of each shaft 55.
  • a cam follower roller 60 enters each cam track or slot 59 from a second rotating member 61 driven to rotate around a bearing at center 62.
  • Belts 63 and 64 which may desireably be timing belts drive rotating members 56 and 61 about their respective centers 57 and 62 at equal rotational speeds.
  • L-shaped arms 54 The action of L-shaped arms 54 is to sychronize behind product 53 on infeed conveyor 51 enclosing the back and end of the product.
  • the precise shape of the arm might vary with product type and shape and cam shape but should prevent separation of articles making up a product to be wrapped as products are swept in an arc from conveyor 51 to linear product path 92 without change in product orientation.
  • rolls with axes along conveyor 51 now have axes directed laterally of product path 92 as they are placed between upper and lower belts.
  • Arms 54 retard respecting products 53 and withdraw to the side, then move at high acceleration to come behind a product on infeed conveyor 51 and synchronize with it to repeat the cycle.
  • the number of arms and exact cam shape may vary, and of course cams and cam followers could be reveresed, with appropriate design changes, here or in the tucker of Fig. 13.
  • Fig. 14 and 27 show the manner in which successive wrappers or sheets 91, which are desirably plastic wrapping film, are fed by a more or less conventional cutting and feeding mechanism 90 to overlie the linear product path 92 shown as a directional arrow.
  • Wrapper 91 is supported at each side margin between opposed timing belts 158,159 (Fig. 27).
  • upper conveyor belts 93 and 94 are visible. These extend over pulleys having different paths in order to provide a smooth transport of the wrapper or sheet 91 and the product 53.
  • Similar belts are visible at the left end of the drawing. These belts define the linear product path 92 for product 53 as it approaches the wrapper 91 being fed with its forward edge well ahead of product 53 as shown at the left and center of Fig. 14, and in Fig. 27.
  • vacuum wheels 95 each rotating with its upper surface tangent to wrapper or sheet 91, are each provided with a lowered pressure in its interior and openings in its surface of a size and number appropriate to grip the particular wrapper 91 and transfer the front edge of the wrapper across the product path 92 and down at right angles to the product path.
  • Stationary internal baffles (not shown) direct the vacuum, so that no vacuum is applied in the zone where the wrapper 91 is stripped from the wheels 95.
  • a vacuum or lower pressure pipe 190 is desirably provided between vacuum wheels 95 to decrease this tendency.
  • Fig. 27 which is similar to Fig. 14 but in a plane outside product path 92.
  • Belt 158 is the upper wrapper conveyor belt and belt 159 is the lower wrapper conveyor belt. Both are desirably timing belts with flat backs in contact with one another, separated only by sheet 91. They extend from wrapper supply area 90 over idler 160 to lie along the top side of linear product path 92. At each vacuum wheel 95, upper belt 158 goes straight on a short distance before returning. Lower belt 159 extends in an appropriate groove in its vacuum wheel 95 and then to an idler to eventually return to film supply unit 90. Film 91 adheres to vacuum wheels 95 and is later stripped from them by belts 156 that run downward from grooves 157 in vacuum wheels 95.
  • Film 91 is further prevented from billowing out by slight outward movement of belt 159 and of vacuum wheels 95, but not belt 158, with respect to the product path 92 to cause moderate lateral smoothing movements against film 91, but not large forces.
  • belt 98 is built up in thickness to guide film 91 downward while edge 91a moves downward, and keep it away from the upwardly moving surface of roller 106.
  • Edge 91c of the film is grasped and pulled downward lightly by belts 97 and rollers 110 and 111 on both sides of the slot until product 53 passes from conveyor belts 52 to conveyor belts 99 and 100 (Figs. 14,16, and 18).
  • Belts 156 only extend a short distance below vacuum wheel 95. The wrapper 91 is stripped (Fig.
  • belts 156 which are round belts smaller than grooves 157 in the vacuum wheels which guide the forward edge of sheet 91 tangent to the vacuum wheel in a downward direction with respect to product path 92 rather than having the sheet adhere to the vacuum wheels 95.
  • Belts 156 are not visible in Fig. 14 but the downward path of sheet 91 is visible, as are belts 97 and 98 which also assist in guiding sheet 91 in its downward path in the slot between conveyor belts 52 and 100 which form a part of product path 92.
  • Upward moving belt 99 does not touch wrapper 91 as it moves downwardly into the slot but does touch it as product 53 passes the slot and begins drawing wrapper 91 out of the slot.
  • Belt 101 takes up the conveying function further down linear product path 92.
  • Corresponding belts 94, 102 serve as upper conveying belts and are continuous rather than being interrupted at the slot area.
  • Fig. 19 is a detailed view of the surface of one vacuum wheel, a slot 157, and belt 156 which is smaller than the s3ot underlying wrapper sheet 91 while the sheet adheres to the vacuum wheel.
  • Figs. 16, 17 and 18 are additional detail views of the slot area.
  • Figs. 16 and 17 are respectively side and top views.
  • the objective is to strip sheet 91 from the vacuum wheels 95 by means of belts 156 and thereafter to continue the motion of sheet 91 away from product path 92 at a convenient angle which will usually be something approximating a right angle without wrinkling, bunching, stretching or tearing until, and only until, product 53 begins to cross the slot between the belts on one side such as belts 97 and the belts on the other side such as belt 98.
  • vacuum wheel 95 are not precisely parallel to conveyor belt 52. The edge of each vacuum wheel 95 tangent to the slot between conveyor belts 52 and 100 lies a small distance farther from conveyor belt 52 than the back edge of the vacuum wheel 95.
  • the vacuum wheels 95 are toed out in the opposite directions so that as the two sheets turn in unison at the speed of sheet 91 a given point on the surface of each wheel 95 is moving laterally very slightly with respect to sheet 91 and tending to smooth it.
  • Round belts 97 are used at intervals along the slot on the left side (Fig. 15 and 28) and belt 98 on the right. These belts and sheet 91 pass between rollers 110 and 111 (Fig. 14,16, and 18) arranged to pull downwardly on sheet 91 with a very low coefficient of friction to guide sheet 91 smoothly into the slot during the period when product 53 is approaching the slot. Roller 111 is relieved for belt 98.
  • belts 97 ride on grooved roller 110 almost opposed to smooth roller 111 on opposite sides of the slot, with wrapper 91 between, as best shown in Fig. 14.
  • Small belts are able to turn on a much smaller radius, than conveyor belts such as 52 and 100 which are heavier and require larger pulleys.
  • small belts provide a much narrower and more precise slot. They may also be made of material which does not pull unduly on wrapper sheet 91 when product 53 crosses over the slot and begins withdrawing the wrapper 91 from the slot in opposition to its previous motion into the slot, but which keeps it taut and smooth.
  • belt 98 is provided with a built up portion 103 having a leading edge 104 and a trailing edge 105 extending along the flat outer side of the belt for a short distance as seen in Fig. 16.
  • Fig. 17 shows that the body of belt 98 is supported on a small sheave 108 on a spindle 109 on which the two rollers 106 that serve as sheaves for belts 96 are mounted. As clearly shown in Fig. 17 this allows belt 98 to be mounted so that the back of the belt does not extend as far as the surface of roller 106 and therefore can never touch sheet 91.
  • built up portion 103 extends the belt radially beyond the periphery of rollers 106 out to the edges of belt 96. Furthermore, as shown in Fig. (6, sheave 108 and shaft 109 that support belt 98 between rollers 106 are mounted further to the right with respect to the right side of the slot than roller 111 which deflects belt 98 back towards the film 91 so that its furthest leftward extension is just below the top of the slot. Belt 98 is timed so that leading edge 104 of built up portion 103 of belt 98 arrives at the slot generally simultaneously with the front edge of wrapper sheet 91. In that respect Fig.
  • Figs. 20 - 22 are to the right of Fig. 14 in the direction of linear product path 92.
  • Product 53 is inserted by belts 101 and 102 between.fixed upper surface 120 and lower surface 121 which in my preferred machine comprise at least a pair of upper bars and a pair of lower bars with surfaces that touch wrapper 91 under light pressure which in the case of a compressible product such as rolls of paper may be provided by positioning the bars to compress the product lightly.
  • wrapper 91 may not be as tight around product 53 as is desirable for a smooth. wrapping, particularly if as shown in Figs. 21 and 22 product 53 comprises more than one article.
  • the articles which make up product 53 may not be in contact as shown at the left of Fig. 21 and wrapper sheet 91 may sag between the articles as shown at the left sides of both Fig. 21 and Fig. 22.
  • surface 120 is arranged to supply less drag against wrapper sheet 91 than surface 121, either by selection of materials, surface finish, area of contact, or whatever method appears best for a particular product.
  • surface 120 has a lower coefficient of friction with sheet 91 than surface 121 has with sheet 91.
  • surfaces 120 and 121 are stationary, rather than being moving conveyor belts like belts 101 and 102.. Accordingly the job of propelling product 53 along linear path 92 has been taken over by paddles 122. They serve as propelling members, being mounted to enter path 92 at timed intervals behind product 53. As shown in Figs. 20 and 21 this is achieved in the preferred machine by mounting paddles 122 on a chain 123. As shown at the center of Fig.
  • a paddle 122 secures the trailing top edge of wrapper 91 against the rear of product 53 as it propels product 53 down path 92.
  • the higher friction at surface 121 than at surface- 120 causes wrapper 91 to migrate around product 53 toward surface 121 until it is stopped from doing so by the fact that the trailing top edge is secured by paddle 122 and therefore tightness of the wrapper around product 53 is assured.
  • this is so even if the articles making up product 53 to be wrapped are not touching as they enter between surfaces 120 and 121 or in the more likely case that wrapper 91 sags between the articles so that as shown at the right side of Figs. 21 and 22 wrapper 91 will be taut and smooth as it progresses between surface 120 and 121.
  • a sprocket 124 changes the direction of chain 123 so that paddles or first propelling members 122 rise slightly as they travel between portions of surface 120 which are separate bars.
  • Figs. 3, 4, 5, and 6 and at Fig. 26 it will be seen that in addition to the upper chain 123 carrying paddles 122 there is a similar lower chain carrying paddles 125.
  • This chain is like chain 123 and is arranged to have a run parallel to it in the inclined portion so that paddles 125 begin propelling product 53 in timed relationship to paddles 122 and as paddles 122 rise out of the way paddles 125 raise between surfaces 121 to continue to propel product 53 and at the same time to smoothly raise the trailing edge of wrapper sheet 91 against the rear of product 53 as shown in Fig. 20 and Fig. 4.
  • pairs of fingers 130 are arranged to enter the tube forming by sides 91c of wrapper 91 at the bottom of the tube, to progress in timed relationship to product 53
  • the horizontal portions of fingers 130 move along they move first into product path 92 to the position shown in Fig. 3. They then rise relative to' product 53 as they travel to successive positions shown in Figs. 4 and 5 causing the wrapper edges 91c to regain their circular form if it is distorted for any reason.
  • the fingers 130 are beginning to withdraw axially as they progress along with product 53. Looking now at Figs.
  • each pair of laterally extending fingers 130 is mounted by a vertical extension to a block 131 carried on rod 132 which is part of a chain 133.
  • the vertical movements of the fingers 130 described in Figs. 3,4 and 5 are produced by the alignment of the respective sprockets 134,135 and 136.
  • Fig. 25 in which we are looking upward at a bottom plan view of the mechanism driving fingers 130 as seen from product path 92 it will be observed that blocks 1.31 slide laterally on rods 132 under the urging of lower cam tracks 137 shown at the top of Fig.
  • first propelling members 122 and second pro-' pelling members 125 are in fact 3 separate propelling members lying in a single plane to act as a single propelling member 122 or 125.
  • propelling members 122 are connected by member 122a. Similar members connect each paddle 122 and each paddle 125 leaving openings between them for a reason which will be discussed in a moment.
  • Fig. 13 shows the tucker(visible in Fig. 7 at 711 and a preferred trajectory for the tip of the L-shaped arm.
  • the tucker is a modified form of my direction changing device of Fig. 12.
  • Tucker 70 has L-shaped arms 71 clamped to shafts 72 extending through bearings in rotating member 73 driven to rotate around a center shaft 74.
  • Each shaft 72 carries a cam plate 75 having a cam'track 76.
  • a second rotating member 77 carries a cam follower 78 which enters cam track 76. Second rotating member 77 is driven to rotate around shaft 79.
  • timing belts 80 and 81 assure that the rotational speed of members 73 and 77 will be equal though any drive that assure equal speed will be appropriate.
  • the timing of the parts is important and it will be understood without specific mention that wherever synchronism is important the belts are timing belts and the drives of the various mechanisms are so connected as to insure synchronism.
  • Fig. 13 the track of the tip of L-shaped arm 71 is shown as a dot and dash line.
  • the product path is not shown in Fig. 13 structurally but is between the tucker arms 71.
  • Arm 71 stops as it reaches the Fig. 7 or Fig. 11 position as shown by the cusp of the path in Fig. 13. It then turns slightly to form a greater angle with the end of product 53, reducing drag on wrapper 91.
  • the tip of arm 71 slows down in relation to the product and retreats backward and to the side to clear the product and to get out of the way.
  • Fig. 13 there are only two such arms 71 per side operated to fold wrappers on-successive products. i Other numbers of arms are possible if properly syn- ⁇ chronized to make the second fold.
  • the cam track 59 or 76 is shaped to achieve the described path.
  • a generally conventional folding mechanism 141 completes the folding of the sides of wrapper 91 to form the ends of the package for product 53.
  • a sealing mechanism 142 comprising a spider carrying heated wheels 143 (Fig. 8 and 26) enters each of the spaces between propelling members 125 to form a first seal at the rear edge of the package.
  • Fig. 11 it is particularly important to make the seal at this point where product 53 consist of a multiplicity of articles 53A, 53b, 53c, 53d, because it leaves the broad sides of wrapper 91 clear and unobstructed by the damage caused by sealing the edges, for decoration or advertising while keeping the wrapper tight.
  • belts 146 hold the end folds and convey products 53.
  • a second sealing means 144 has full width end sealing bars 145 to form a full back seal. Because the sealers rotate while the motion of product 53 is linear, sealers 143 and 144 catch up to product 53 only during fastest horizontal motion, seal, then lose relative speed.
  • belts 146 assist in maintaining the end folds until the wrapped product 53 is inserted between end sealing and conveying belts 147 which are heated at the point of initial contact to form the end seals. If necessary they may be cooled further along the product path 92 to produce a completely wrapped product 53 containing one or more articles 53a, 53b, 53c, 53d, etc.
  • a prototype machine which has been built and tested demonstrates the validity of the concepts expressed and proves for the first time that I am aware that product packaging speeds very much higher than those previously obtainable may be obtainable in my machine.
  • Some of the inventions and inventive concepts here described were first arrived at during the building and testing of this machine.
  • the machine as described is a complete and operative embodiment and is the best embodiment known.
  • the end folding plates 141 which form the flaps of the end fold have not been fully described because they are previously known.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Relays Between Conveyors (AREA)
  • Special Conveying (AREA)
  • Specific Conveyance Elements (AREA)
  • Vending Machines For Individual Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP81303966A 1980-09-15 1981-08-28 Hochgeschwindigkeits-Einwickelmaschine Expired EP0048105B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81303966T ATE10352T1 (de) 1980-09-15 1981-08-28 Hochgeschwindigkeits-einwickelmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18711580A 1980-09-15 1980-09-15
US187115 1980-09-15

Publications (2)

Publication Number Publication Date
EP0048105A1 true EP0048105A1 (de) 1982-03-24
EP0048105B1 EP0048105B1 (de) 1984-11-21

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EP81303966A Expired EP0048105B1 (de) 1980-09-15 1981-08-28 Hochgeschwindigkeits-Einwickelmaschine
EP81303965A Expired EP0048104B1 (de) 1980-09-15 1981-08-28 Gerät zum Handhaben von Gegenständen

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EP81303965A Expired EP0048104B1 (de) 1980-09-15 1981-08-28 Gerät zum Handhaben von Gegenständen

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EP (2) EP0048105B1 (de)
JP (1) JPS5786412A (de)
AT (2) ATE10355T1 (de)
CA (1) CA1180992A (de)
DE (2) DE3167324D1 (de)

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US4439812A (en) * 1981-11-02 1984-03-27 General Electric Company Impregnated capacitor foil
US4559781A (en) * 1983-10-31 1985-12-24 Allied Corporation Master cylinder
US4776149A (en) * 1986-06-03 1988-10-11 Thomassen & Drijver-Verblifa Nv Device for packaging a row of covers and the manufactured packaging
FR2626843A1 (fr) * 1988-02-10 1989-08-11 Molins Plc Machine a emballer notamment des paquets de cigarettes dans des pellicules plastiques
CN112478268A (zh) * 2020-12-24 2021-03-12 浙江希望机械有限公司 环形推料导轨及应用该导轨的装盒机推料装置
CN114560130A (zh) * 2022-03-15 2022-05-31 台山市宏盛自动化机械有限公司 一种床垫自动包装机
CN114771931A (zh) * 2022-06-20 2022-07-22 小洋电源股份有限公司 一种用于铅酸蓄电池盒的覆膜装置
AT17635U1 (de) * 2021-04-07 2022-09-15 Juergen Fuchs Ing Zuführvorrichtung für Schlauchbeutelmaschine

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US4459251A (en) * 1982-04-29 1984-07-10 Joint Systems, Inc. Method and apparatus for controlled application of a coating material to a pipe joint
US7659860B2 (en) * 2004-12-27 2010-02-09 Telefonaktiebolaget L M Ericsson (Publ) Triple polarized slot antenna
CN112373770B (zh) * 2020-11-26 2022-07-01 长沙长泰智能装备有限公司 一种新型全自动拉伸膜包装机

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US4439812A (en) * 1981-11-02 1984-03-27 General Electric Company Impregnated capacitor foil
US4559781A (en) * 1983-10-31 1985-12-24 Allied Corporation Master cylinder
US4776149A (en) * 1986-06-03 1988-10-11 Thomassen & Drijver-Verblifa Nv Device for packaging a row of covers and the manufactured packaging
GB2215697B (en) * 1988-02-10 1992-06-10 Molins Plc Wrapping machines
GB2215697A (en) * 1988-02-10 1989-09-27 Molins Plc Wrapping machines
EP0395809A1 (de) * 1988-02-10 1990-11-07 Molins Plc Umwickelmaschine
FR2626843A1 (fr) * 1988-02-10 1989-08-11 Molins Plc Machine a emballer notamment des paquets de cigarettes dans des pellicules plastiques
CN112478268A (zh) * 2020-12-24 2021-03-12 浙江希望机械有限公司 环形推料导轨及应用该导轨的装盒机推料装置
AT17635U1 (de) * 2021-04-07 2022-09-15 Juergen Fuchs Ing Zuführvorrichtung für Schlauchbeutelmaschine
CN114560130A (zh) * 2022-03-15 2022-05-31 台山市宏盛自动化机械有限公司 一种床垫自动包装机
CN114560130B (zh) * 2022-03-15 2023-08-01 台山市宏盛自动化机械有限公司 一种床垫自动包装机
CN114771931A (zh) * 2022-06-20 2022-07-22 小洋电源股份有限公司 一种用于铅酸蓄电池盒的覆膜装置
CN114771931B (zh) * 2022-06-20 2022-09-06 小洋电源股份有限公司 一种用于铅酸蓄电池盒的覆膜装置

Also Published As

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EP0048105B1 (de) 1984-11-21
JPS5786412A (en) 1982-05-29
ATE10355T1 (de) 1984-12-15
ATE10352T1 (de) 1984-12-15
JPH0419086B2 (de) 1992-03-30
DE3167325D1 (en) 1985-01-03
EP0048104B1 (de) 1984-11-21
CA1180992A (en) 1985-01-15
EP0048104A1 (de) 1982-03-24
DE3167324D1 (en) 1985-01-03

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