DE1187539B - Multi-lane packaging machine, in particular for packaging ice cream jam - Google Patents

Description

Multi-lane packaging machine, in particular for packaging ice cream jam The invention relates to a multi-lane packaging machine, consisting of a first conveyor for moving several, closely spaced, side by side, U-shaped pre-folded packing material strips, made up of several, one packing material strips each assigned feeding devices for the fed at regular intervals Goods from a folding device arranged above the first conveyor for forming the packing material strips to hoses, furthermore from a transverse to the first conveyor extending device for compressing the formed tubes between the inserted goods as well as from a subsequent second conveyor for removal closed packaging, especially for packaging ice cream jam.

In a known packaging machine of the type mentioned above the packing material strip is pushed onto a plate, with more Feeding operations are carried out by belts.

The transverse welding of the packaging material strip takes place at the moment where the packaged item is severed from the strip, so that upon severing the material of the strip can be withdrawn to compensate for the shortening. This means that the strip material is pushed through the machine, which is particularly disadvantageous when it comes to the goods to be packaged a sensitive product, such as B. ice cream jam acts.

Another disadvantage of this known packaging machine that the Excludes use of the same for the packaging of ice cream jam in the fact that the bands mentioned come directly to the goods to the plant, so that a pressure is exerted against the sides of the goods to be packed. Also will the longitudinal welding is effected by the action of a spring finger, which is also presses directly against the goods, with the packaging material between this component and the goods themselves are located, so that pressure is also exerted on the longitudinal welding Goods are exercised. However, this pressure could cause sensitive goods, such as Ice cream jam, crushed or otherwise damaged.

It is the object of the invention to provide a packaging machine for packaging To create very sensitive goods, such as ice cream jam, for which some known facilities are used, but this in a completely new Combination.

This object is achieved primarily in that the folding device for hose formation as one in a known manner the protruding edge parts of the strips is formed in a vertical position merging hemming device and that for known per se pulling off the packaging, which is connected as a chain, is the second Conveyor from the lower conveyor chains with conveyor strips that take up the packaging hose and from one beginning after the pressing device designed as a sealing device there is another pair of conveyor chains, of which, as is known, the one chain below, the others are arranged above the packaging tube and both chains are provided with cooperating press and driver jaws and with all chains of the second conveyor can be moved at a lower speed than the first conveyor are such that the changes in length of the packaging tube when compressed be balanced.

In the case of a packaging machine with a feed device that has several Has Zuführiinnen for the objects and in which each channel has a stop for Interception of the falling movement as well as an ejector that can be swiveled at a time is, According to the invention, the interception stop is below each packaging strip arranged, and there is one in each channel that can be swiveled synchronously with the ejector Wall arranged so that in the closed position, the collapsed object holds the object in an inclined position in the conveying direction and in the open position lets tip over.

According to a further feature of the invention, the folding and Longitudinal sealing device guides for the upper edges of the packaging material strip in a two-dimensional relationship, one lying above the first conveyor device and a slot for receiving the edges of the strip of sealing block and resilient ones extending in the slot on opposite sides thereof Fingers pinching the top edges of the strip together. The Finger attacking the strip and moving upward in the direction of movement of the strip inclined sections that lift the edges of the strip. Are still there according to the invention, after the sealing blocks, a distributor piece for the receptacle the sealed edges of the strip as it exits the sealing block and a device for the supply of air is provided after the distributor piece, to cool the edges of the strip.

Another feature of the invention is that the sealing device serving pressing device from a preheating jaw and from a following at a distance There is a pair of jaws, of which the lower jaw can be heated and the preheating jaw and the upper jaw on the one hand and the lower jaw on the other hand in known Way be arranged on a parallel crank-like drivable rod.

As is known per se, the jaws on at least one of the chains perpendicular to their direction of movement are resiliently mounted and by means of Pressure strips can be displaced in the direction of the opposite jaws, with each of the movable jaws from one of the number of packaging lanes corresponding There is a number of independent jaw parts, on each of which one is supported by springs Druoilesste acts.

The invention and various minor features and advantages of the invention should now be based on the drawing showing it, for example will be described in more detail, namely Fig. 1 shows a and 1b, respectively right and left parts of a plan view of the packaging machine, Fig, 2a inid 2b each right and left parts of a side view of the packaging machine, F i g. 3 a and 3 b each right and left parts of a T longitudinal section in the plane 3-3 of FIG. 1 a and Ib, F i g. 4 is a perspective view of the through machine - manufactured wrapped article, Fig. $ a cross section in the plane 5-5 of Fig. 3b, F i g. 6 the rear view of the machine with the emptying conveyor device omitted, 7 shows a side view of one of the closing jaws for closing or welding the top side edge of the folded strip of packaging material, F i g. 8 one Partial section in plane 8-8 of FIG. 7, while FIG. 9 a circuit diagram for the electrical control of the packaging machine reproduces.

Frozen candy sticks and frozen stick confectionery articles (»Ice on a stick «) pose particular problems when they are in a lockable or weldable packaging. The frozen confections tend to melt easily on their surface, and they become very slippery during the closing resp.

Welding process, it is also difficult to do this in the correct Able to keep in the packaging when the packaging is over the consecutive Is funded across stations. Even if the goods packaging machine according to the present invention generally intended for the packaging of goods or articles is, it is specially designed and should be used here in connection with the packaging of frozen candy sticks and "popsicles". Generally there is the packaging machine consists of a goods infeed station A, a folding and edging station B, a transverse folding station C and a cutting station in which the end pieces or segments of the packaging are separated from the remaining strip. An improved one Endless belt conveyor is for the onward conveyance of the packaging material and the Articles intended for the various stations.

The packaging machine stands on a basic component with feet 15 and upper and lower rails 16 and 17 connecting the feet together. Cross bars 21 are on the upper rails 16 near one end of the base member and the supporting side parts 22 attached. The goods transfer station A is located at one end of the machine and has brackets 23 attached to each of the Side parts are attached with a leg which extends upwards from the end of the Side part extends forth. Cross bars or cross bars 24 and 25 are located on the consoles 23 and run transversely to the machine. The machine belongs to the type with multiple lanes and has a large number of goods infeed chutes or lanes 26, seven of which are shown running side by side in a direction transverse to Machine are arranged.

Each feed chute has a rear wall 27 and spaced apart Sidewalls 28 and is open at the front and at the bottom. The feed chutes are releasably attached to transverse bars 24 and 25, and for this purpose each Feed channel a downwardly directed hook 29 (FIG. 3 a), which is attached to the lower Cross bar 25 attacks, as well as a screw and wing nut unit 31, which in a recess 32 in the upper transverse strip 24 is seated. This arrangement will it allows each article feed chute 26 to be removed from the machine individually for cleaning can be removed, and if the feed channels on the transverse strips 24 and 25, the screws and wing nuts hold and lock the feed chutes in the correct position to the side walls 28 of the adjacent feed chutes, which in small Are spaced apart, as best shown in FIG. 1 a can be seen.

The articles or goods marked with X, for example frozen ones Confectionery sticks, "popsicles" or the like, are in a separate Machine (not shown) formed and then simultaneously in each of the goods feed channels 26 thrown in. In order to achieve correct storage of the items in the packaging, it is advantageous to completely stop the downward movement of the articles or goods and then gently place the goods on the packaging material strip, namely with a minimum of movement lengthways to the packaging.

For this purpose, a goods collecting plate 35 is below the open one lower ends of the feed chutes 26 arranged at a distance sufficient to to let the packing material strips W pass between them. The catch plate 35 is fastened to the brackets 23 by means of a transverse rod 36, and also is a guide plate 37 attached to the cross bar 36 to guide the packing material strip Guide W over the top edge of the catch plate. The feed chutes point each have a movable front wall 39, which is for an oscillating movement by a bolt 41 is set up on the opposite sides 28 of the feed chute. the Front wall is between one in F i g. 3 a shown closed position, in which it extends downwards and backwards towards the rear wall 27 of the feed chute to extends, and an open position in which it is movable extends downward and away from the rear wall of the feed chute. In their closed Position, the wall 39 prevents the goods X from getting out of the feed chute, and, together with the catching plate 35, holds the goods in an upright and preferably forward inclined position, as shown in FIG. 3 a can be seen. When the wall 39 in their is swung in the open position, the goods X tip over onto the packaging W, at the lowest possible speed in the direction of movement of the Packaging. To ensure that the goods or articles X from the feed chutes properly ejected is a variety of substantially L-shaped Ejector fingers 43 attached to a transverse rod 44, which of arms 45 on opposite Sides of the machine is held. The arms are for the purpose of being vertical Oscillating movement on eyelets 46 attached to the upper cross bar 24, and the fingers 43 extend through openings 47 on the rear wall 27 of the feed chutes through in order to come into operative connection with the articles or goods X. The wall 39 and the ejector fingers 43 are operated synchronously so that the fingers the article or then eject goods from the feed chutes when the walls 39 are in their open Position can be moved. An upwardly extending flange 35 a is on the Front edge of the catch plate 35 molded to ensure that the article or goods fall out of the feed channel correctly. Guide flanges 48 and 49 are attached to the rear wall of each feed chute laterally and at the bottom of the same to the channel-like shaped packaging W around the lower sand of the corresponding feed channels to run around.

The neighboring lines of the packaging machine are relatively tight side by side, and the overall width of the machine is considerably smaller than the total width of the packing material passing through it. Around the To feed packaging material strips W to the various lanes, the strips folded flat and run over guide rollers 51 with the corresponding Align the paths of the machine.

After the folded strip has run over a guide roller is, it passes between guide fingers 52 arranged at a distance from one another. The guide flanges 48 and 49 spread the sides of the folded strip of packaging material and shape the packaging material W into an upwardly open U-shaped channel, the moves over the lower end of the respective goods infeed chute 26, with the sides the channel-like shaped packaging with the opposite sides 28 of the Enter feed channel in operative connection.

The package W is after leaving the goods delivery station A. has, on the front section E1 of the in F i g. 3 a illustrated conveyor held. The front section consists of an endless chain conveyor with front and rear shafts 56 and 67 and with sprockets 58 and 59 on the shafts. the Chains 61 run over the sprockets and have sets of goods-carrying feed bars 62 and 63, which are attached to them and are transverse to the packaging machine extend. The top edge of the front sprocket 58 is below the bottom of the package W arranged, and a plurality of support bars 64 are on the front and back rear shafts 56 and 57 attached to the feed bars of the conveyor to keep. The support rods 64 have a front ramp section 64 a and a longitudinally extending guide section 64 b on the lower edge, which guide the feed bars and support them when they are move in a direction from the front to the rear of the machine. About the alignment to support the article X located within the packaging W, the Feed bar 63 of each set of upwardly extending sheet-shaped portions 65 up between the division strips to be described below 71 reach and attack the rear edge of the article in the packaging and this move on with the conveyor. Because the package W is above the conveyor is, the package is held on the feed bars 62 and 63 and lies over the upwardly extending sheet-shaped sections 65 on the feed bar 63.

The plastic material strips W are held in separate lanes, by dividing strips 71, which at their front ends on a fastening 72 and are held at their rear ends by a bridging strip 73. The attachment 72 lies under the packing material strips, and their ends are on the side parts 22 attached. The bridging strip 73 is also attached to the side parts 22 and is spaced above it by spacers 74. The U-shaped packing material strips W run between the partition strips 71, and wedge-shaped plates 75 are on attached to the top edges of the strips near their front ends. How out F i g. 1 a, the side edges of the adjacent wedge-shaped plates form 75 a V-shaped cutout that folds the sides of the packaging inwards, so that it lies around the articleX. The top edges of the package W will be led into surface contact, and are for this purpose Guide plates 77 and 78 attached to a cross bar 79 in a generally V-shaped arrangement and are arranged between the side edges of the adjacent wedge-shaped plates 75. The top edges of the package run between the filling sheets 77 and 78 and the adjacent side edges of the wedge-shaped plates 75 therethrough so that the inner surfaces of the package W in face-to-face contact along its top Edges are brought.

Lateral guide plates 81 are on the upper edges of the partition strips 71 attached and extend from one point to the rear edge of the wedge-shaped Plate 75 to the rear. The guide plates 81 lie on the side sections the article or goods when they pass between the allocation strips, and keep the packaging in contact with the top of the article.

A plurality of locking or folding blocks 82 are on a transverse strip 83 attached, and the blocks point - as best seen in FIGS. 7 and 8 - a slot 84 which extends through it hiclx, and V-shaped plates 85 for inserting the top edges of the packaging into the slot. The breech blocks are heated by a heating element 86, which is built into the crossbar, and the edges of the package are supported by spring elements 88 which are attached to the block are pressed into firm locking contact.

The spring elements 88 have cranked portions 88 a, which pass through a transverse slot 89 in the block to close the longitudinal slot 84 cross. The cranked sections 88 a press the upper side edges of the Packing together and are, as can best be seen from Figs. 3a and 7, inclined upwards and backwards in such a way that they tend to the upper Lifting or tearing the edge of the packaging as it passes through the jaws. Air currents are directed towards the longitudinal seam as it leaves the locking block 82, and for this purpose a manifold 91 is attached to the side parts 22, such that it extends transversely between them and has this manifold a plurality of slots 93 in its underside, which are intended to take up the sealed or welded edges of the packaging.

The air is supplied to the manifold 91 via a supply line 94, so that air flows out of each of the slots 93 to cool the longitudinal seam.

The movable walls 39 in the goods feed channel 26 and the ejector fingers 43 are actuated to eject the articles or goods from the respective feeders, before the conveyor is actuated to remove the packages and candy bars from one station to the next wefternufördem. The walls 39 and ejectors 43 are - in motion by a common pressure medium actuation device set which, as shown in FIG. 2 a can be seen, an air cylinder 96 with a Has piston rod 97, which via a connecting member 98 with an arm 99 on a Pivot shaft 101 is connected. The pivot shaft is rotatably mounted on brackets 102, held by the side members 22 and has an arm 103 at one end which via a link 104 to one of the ejector actuating arms communicates. In addition, the Pivot shaft 101 a plurality of blocks 106, which correspond in number to the number of lanes in the machine and non-rotatably attached in the longitudinal direction at spaced apart locations are. The blocks have a slot 107 and an arm 108 that attaches to the block through a Bolt 109 rotatable for movement about an axis parallel to pivot shaft 101 is stored. As shown in FIG. 3a as can be seen, the arms 108 can rotate in a counterclockwise direction to swing the bolt 109 relative to the block, and a spring 10 is with the link and the block connected to push the arm clockwise to a position in which the end of the arm rests against the block. The block has a bolt 113 on, and a connecting member 114 has a cutout 115 which serves to the To receive bolts 113 in order to releasably connect the same to one another. The other End of the connecting link 114 is through a bolt 116 to the respective wall 39 of the goods infeed channels. In this arrangement, each of the arms is 108 compliant relative to block 106 so that jamming of an article in any of the feed chutes, which prevent the wall 49 of this feed chute from closing would not hinder the closing of the walls in the remaining feed chutes If that is, the pressure medium actuation device 96 is actuated to extend the rod 97, so the movable walls 39 and the ejector fingers 43 are operated simultaneously, around the article or the goods X out of the feed channel and onto the packaging to throw.

When the rod 97 is then withdrawn, the walls will 39 closed and the fingers 43 in the in F i g. 3 a position shown withdrawn.

A valve 118 with solenoids 118 a and 118 b is for the reversible Control of the pressure medium flow provided after the actuating device 96, and energization of solenoids 118a and 118b is performed in a manner to be described Way controlled to the ejection of the article from the feed chute before moving to effect the conveyor.

Stop fingers 111 are above each track of the packaging machine arranged and movable into and out of the path of the article on the packing strip, to put the items in the correct position in the packaging. Fingers 111 are attached to a pivot shaft 112, which in bearings 117 on opposite Sides of the machine sits.

An arm 119 is attached to the outer end of the pivot shaft 112 and connected to a lever 126 via a link 120. One end of the lever 126 is rotatably supported by a bolt 130 on the side part 22 and points inside its ends on a roller 131, which with a cam 132 at the outer end of the Conveying shaft 56 is in operative connection. The stop fingers 111 are usually located as in Fig. 3a shown in the lowered position to stop the article.

After the conveyor section E is in a preselected Has moved position, the raised portion 132 a of the cam 132 acts on the Lever 126, link 120 and arm 119 to raise the stop fingers and to give the articles or goods the opportunity to then use the packing strips to keep walking. The cam lifts the stop fingers to about the article Release point where the leaf-shaped Pieces 65 on the conveyor come into contact with the articles. The cam 132 leaves the stop fingers again after the articles have passed under them and before the conveyor is stopped.

The packaging, after it, is tubular, tubular or tubular Body has been folded and closed or welded in the longitudinal direction, one second section E2 supplied to the conveyor. The second conveyor section consists essentially of a front shaft 121, which is in the side parts 22 is rotatably mounted and has sprockets 122 arranged at a distance from one another. and a rear shaft 123 which is rotatably supported in side pairs 124 and in Sprockets 125 arranged at a distance from one another (see FIG. 5). The side panels sit on cross bars 127 which are held by the upper rails 16. Chains 128 run over sprockets 122 and 125 and are through transverse conveyor bars 129 connected. The conveyor bars are arranged in sets of three, and the bar 129 a at the leading edge of each set is relatively thicker than the other strips, to stick out in this way and the stem of a frozen stick confectionery ("Popsicle").

The hemmed or welded packing material hose is heated and compressed at points spaced apart from one another in the longitudinal direction, when it has been moved further along the conveyor E 2, around the hose to be divided into individual packets. The pressing device has a preheating jaw 135, which extends transversely to the tubes and in which a heating element 136 is located. The pressing device also has an upper pressing or pressing jaw 137 and a lower pressing or pressing jaws or pressing claw 138, which for a Movement towards and away from each other are established, namely in a time-controlled relationship to the movement of the conveyor E2 to the to squeeze the folded hose together at certain intervals. With the one shown The upper pressure jaw 137 and the upper preheating jaw 135 are exemplary embodiments attached at their ends to retaining strips 141, which rods 142 with crank in connection on each side of the machine. The connecting rods are seated on cranks or eccentric discs 145 and 146, and these are on shafts 147 and 148 which are supported in the side plates 124. The lower pressure jaw 138 sits in a similar manner on connecting rods 149, which are located on opposite Sides of the machine, the connecting rods 149 on eccentric discs 151 and 152 sit. The discs 151 are at the outwardly protruding ends of the connected rear shaft 123 for the second conveyor E2, and the discs 152 communicate with the outwardly extending ends of a shaft 153, which is also mounted in the side plates 124. When the eccentric discs in one in FIG. 2 b can be rotated in the direction indicated by the arrows, so the upper press jaw 137 moves clockwise on a generally circular path, and the lower pressing jaw 138 moves counterclockwise on a generally circular path that is tangent to that of the upper one to bake described path is. In this way the upper and lower pressure jaws become at the same time towards each other and along in the direction of movement of the hose the conveyor E 2 moves to kink the hose between them and to squeeze. The diameter of the conveyor sprockets 125 is chosen so that the conveyor device advances a distance during each revolution of the shaft 123 which corresponds to the length of a packet. The eccentric discs 146 and 152 are interlocking with one another on their circumference by means of toothings 146 a and 152a connected so that the upper and lower pressure jaws are related in time to each other and to the conveyor E 2 are actuated to the packaging tube to compress once during each revolution of the shaft 123.

The lower press jaw 138 is powered by an electric heater 155 heated, which in connection with the preheating jaw 135 the hose of length after being heated in individual places in order to achieve a good seal. Like on most clearly from FIG. 3 b, the upper pressure jaw has a transverse one Rod or ledge 158 and a plurality of generally U-shaped jaw members 159, which can be moved in a direction transverse to the bar and in the direction resiliently urged on the lower jaws 138 by springs 161. The jaw elements 159 are mounted on the strips 158 in the assembled state by fasteners 162 held, which pass slidably through the bar and each in the jaw element are screwed in. With this arrangement, the upper jaw members 159 push the hoses together flat and press them against the lower jaw elements 38, and because the jaw members are independently movable for each lane, causes one Disturbance or obstruction in a path that would otherwise prevent the jaws from closing precisely would not close the jaws in the other lanes. For precise alignment to ensure the articles in the tubes and jamming of the handles Preventing the article between the jaws is a variety of alignment fingers 165 attached to a transverse bar 166 which is carried by a holding bar 141.

According to FIG. 3b are the rounded lower ends of the alignment fingers arranged to come into contact with the leading edge of the article when the pusher jaws are brought together to move the rod backward from the pusher jaws move away in case the rod is out of position in the hoses has moved.

The pressing device also has means for fluting or zigzag deformation of the compressed areas of the packaging, while at the same time allowing to provide that the heated surface cools down and a sufficient seal forms. For this purpose, upper and lower auxiliary conveyors 171 and 172 are provided arranged between the ends of the conveyor E2 and carry upper and lower Riffelbackenl73 and 174 to corrugate the compressed surfaces between them or to bring them into a zigzag shape. The lower auxiliary conveyor 172 has Chains 176, which run over sprockets 177 and 178, which are in the usual Way to appropriate Shafts 123 and 153 are located. How most clearly As can be seen from Fig. 5, the sprockets and stimulus chains are of the lower auxiliary conveyor arranged between the sprockets and chains of the second conveyor E2, and the lower serrated jaws 174 extend transversely of the machine between the Groups of conveyor bars 129 on the main conveyor E2. Conveyor equipment 181 are attached to shafts 123 and 153 and lie under corrugated jaws 174 and the conveyors 129 to support them if they move backwards.

The. upper auxiliary conveyor 171 has chains 182, which over Sprockets 183 and 184 run, which are on shafts 147 and 148.

Each of the corrugated jaws 173 on the upper conveyor 171 has a large number of independently movable jacket elements, one for each lane of the packaging machine. The jaw members are generally U-shaped and attached to a cross bar 187 that attaches to the conveyor chains 182 is located. A pressure plate 188 is -; ai 'the jaw members by fastenings 189 is attached, and springs 191 are between the bar 187 and the pressure plate 188, xEa to resiliently push the jaw members 186 into a retracted position. The jaw elements 186 of the upper corrugated jaws 173 are secured by pressure strips 193 yieldingly pressed downwards in engagement with the lower fluted jaw, afterwards - the upper and lower jaws have moved in exact alignment with one another.

The printing strips 193 belong individually to each lane of the packaging machine and extend along it, with the cover plates passing under them 188 to cooperate on the jaw elements 86. The pressure bars 193 are through Pin 194 and springs 195 resiliently mounted on transverse strips 196, wherein the latter are between the side panels 124. With this arrangement the jaw members 186 for each lane individually against the lower jaws 174 pressed, so that a jam that prevents the closing of the jaws in a web the correct closing of the jaws in the remaining tracts would not be impaired. The upper run of the upper auxiliary conveyor device117 is supported by stripsl98 (Fig. 5) supported, which lie under the upper run of the chains 182 and by fasteners 199 are attached to the sides. The upper corrugated jaws 173 can at their Movement around the arcuate runs of the sprockets tends to turn around to rotate or pivot an axis in the longitudinal direction of the corrugated jaws, which prevents precise alignment of the upper and lower serrated jaws 173 and 174. To prevent this, a finger 200 (Fig. 3 b) attached, which is set up so that it fits with the circumference of a hub 184 a at the chain wheel 184 comes into operative connection 'when the jaws move around them; Um to intensify the cooling of the heated surfaces while they are through the baking 173 and 174 are corrugated, air is applied to the upper bac'-173- - blan before the jaws move into their atts position. For this purpose is the side frame a manifold 202 is attached which extends across the machine and Luft @@@ laßöff @@@ gen 203, which has an air direct the beam on the cheeks, to cool them down. The air is the manifolds 202 and 91 from one Fan 201 supplied here.

After leaving the corrugated jaws, the sealed packets are separated from the packing material strip by a shearing device D. This shearing device has a fixed shear knife 211, the upper edge of which is at the level of the compressed surfaces of the packing strips when they are removed from the conveyor come down.

A substantially rectangular cutting frame with top and bottom Sections 212 and 213 and side sections 214 connected to one another are seated for the purpose of a perpendicular displacement movement in guides 215, which at the ends of the side plates 124 are attached. An upper shear knife 216 is located on upper section 212 of the frame to move with this, and is how out F i g. 6 it can be seen, preferably inclined to progressively move the parcels separate from the packing material strips when the cutting blade is moved downwards. A guide plate 218 (Fig.3b) is attached to the lower section 213 of the frame and arranged so that it extends alongside the lower cutter 211, to guide the packaging over the fixed knife 211 when the movable one Shear knife 216 is raised. The movable shear knife 216 is by means of a Air cylinder 221 actuated, the piston rod 222 of which via a connecting member 223 is connected to an arm 224 which is seated on a pivot shaft 225. The pivot shaft 225 is mounted in bearings 226, which sit on the feet 15 of the basic component, and has actuator arms 227 attached at their ends. The operating arms are connected to the cutting frame by connecting links 228 to the cutting knife 216 to move down when the air cylinder is actuated. As shown in Figs. 3b and 6, the lower end of the link 228 is through the arm a bolt 229 rotatably supported, and the lower end of the connecting link 228 is connected to the cutting frame with a ball joint 230 in order to accommodate the changing Adjust the angular position of the connecting link. A pressure medium becomes reversible Manner fed to the cylinder 221 under the control of a valve 231, which is a first solenoid 231 a, which is used to activate the valve in to bring the one position, and a second solenoid 231 b, which when actuated moves the valve to the other position. After the separated packets die Having passed the cutting device D, they fall onto a conveyor belt 235, which is carried in the usual way by the basic component of the machine. As shown in FIG. 3 b, the conveyor belt 235 is removed from the main conveyor shaft by means of a chain 232 123 driven.

The conveying devices El and E2 and the auxiliary conveying devices 171 and 172 are driven by a common drive motor 236, which over a one-way clutch device 237 with a main drive shaft 238 in connection stands.

The outer end of the drive shaft 238 runs in a bearing 239, which supported by a plate 241 extending between the upper and lower rails 16 and 17 extends on one side of the basic component. A sprocket 242 is over one Chain 243 connected to the chain teeth on disk 151, and a blind sprocket 244 is to maintain proper chain tension intended. The one-way clutch has a clutch release lever 250, which by means of of a solenoid 251 is actuated and the clutch is when the solenoid is energized is intended to drive the shaft 238 over one revolution. The translation ratio of the sprockets 242 and 151 is 1: 1, so that the eccentrics 45, 146, 151 and 152 each time then, when the one-way clutch is actuated, are rotated by one revolution. As previously described, the diameter of the sprockets is 125 for the conveyor chains 128 chosen so that they move the conveyor chains by a distance that the Length of one of the packets P corresponds when the shaft 123 is rotated one revolution will. However, there is a noticeable shortening of the packaging material strip when they are compressed transversely by the pressing jaws 137 and 138 and then by the Corrugated jaws 173 and 174 are grooved or provided with zigzag shapes. Accordingly the first section El of the conveyor device is at a slightly greater speed driven than the second section E2. In the present embodiment, the first conveyor El driven by the second conveyor. this is achieved by having a sprocket 255 on the shaft 121 of the second conveyor and a sprocket 256 on the outer end of the shaft 57 of the first conveyor which are connected by a chain 257 are provided. To the first conveyor to move at a slightly greater speed, the sprocket has 256 for the first conveyor has one tooth less than the sprocket 255 of the second Conveyor device, so that the first conveyor device over at each indexing a little further, about 12 mm, further than the second conveyor is moved.

This takes away the stress caused by crimping and grooving of the hose Shortening of the packaging material strip.

The electrical control for the operation of the various individual aggregates in a time-regulated relationship is shown as a circuit diagram in FIG. 9 shown. As can be seen from this figure, the electrical power of the machine is over a main switch 261 supplied, which the power supply to the conductors 262 and 263 regulates. The work cycle of the machine is initiated by a switch 264, which is arranged in the vicinity of the goods feed channels 26 and arranged so that the machine that delivers the goods into the feed chutes, at the upward or Downstroke switch 264 closes. The switch 264 is via the conductor 265 with input conductor 262 and via conductor 266 to one of the solenoids 118a of the valve 118 connected. When energizing the solenoid 118 a, the valve is actuated to the To supply cylinder 96 with a pressure medium under pressure and to extend piston rod 97. As previously described, the extension of the rod 97 opens the movable walls 39 of the feed chute and moves the ejector fingers 43 into the goods feed chutes to throw the articles X out of the feed chutes and towards the package W. place.

A finger 268 is attached to the rod 97 which has a switch 269 closes when the bar reaches a preselected raised position. The desk 269 is via the conductor 271 to the line conductor 262 and via the conductor 272 to the clutch solenoid 251 connected. Closing switch 269 activates the clutch solenoid energized, which actuates a clutch lever 250 and the shaft 238 the possibility there to go around one revolution.

When the shaft makes one revolution, the conveyors will El and E2 are switched on over a route corresponding to the length of the packet. At the start of the work cycle, the conveyors are in their normal position Stop position according to FIGS. 3 and 3 b, and the goods stop fingers 111 are lowered. After the conveyors have covered a preselected distance, lifts the Nockenl32 (Fig.2a and 9) the stop fingers so that they are held Article X can move with the packing strips on the conveyor E1. After the conveyors go a further distance, approximately half of theirs Stroke, closes a cam 275 on the hub of the drive sprocket 256 of the first conveyor device (FIGS. 2 a and 9) a normally open Switch 276. The switch 276 is via the conductor 277 to the power line 262 and connected via the conductor 278 to the other solenoid 118 b, which via the conductor 279 is grounded. By energizing the solenoid 118b, the pressure medium supply interrupted to cylinder 96 and withdrawn around the walls 39 of the feed chutes to move to their "closed" positions and retract the goods ejector fingers 43.

When the package and the items through the conveyors are moved further, the U-shaped packing strip W first becomes a tube folded and welded longitudinally by the jaws 82, then in the transverse direction heated and compressed by jaws 135, 137 and 138. The squeezed As already described, surfaces become with the corrugated jaws 173 and 174 Provide grooves or zigzag shapes. Just before the end of the revolution of shaft 238 A cam 281 on shaft 238 (Fig. 9) actuates a lever 282 to operate a switch 283 to close. The switch 283 is connected to the power line 262 via the conductor 284 and connected via the conductor 285 to one of the solenoids 231 a, which is the valve 231 actuated. Solenoid 231a is otherwise grounded through conductor 286, and if so it is energized, it operates the valve 231 to supply pressure medium to the cylinder 221 and withdraw the piston 222. This will remove the packets at the end cut from the packet strips.

A finger 291, which is a switch, is provided on the piston rod 222 292 closes when the rod is withdrawn. The switch 292 is via a Conductor 293 to power line 262 and through conductor 294 to the other solenoid 231 b, the latter solenoid being grounded via conductor 295. This reverses the pressure supply to cylinder 221 and rod 222 extended to open the cutter again. In the event that a fault or inhibition prevents the cutter from closing completely, so that the Switch 292 cannot be operated to reverse the movement of the cutter a safety switch 298 is provided, which is connected to the counter 292 is connected in parallel. The switch 298 is arranged to be switched by the Clutch lever 250 is closed when the clutch for the next Cycle is operated. This will ensure that the shear knife opens again is before the conveyors are moved on during a subsequent operation and that jamming of the machine is prevented. The heating elements 86, 136 and 156 connect to line conductors 262 and 263 to be energized when the main switch 261 is closed.

Claims (7)

Claims: 1. Multi-lane packaging machine, consisting of a first conveyor for moving several closely spaced next to each other, U-shaped pre-folded packing material strips, made up of several, one packing material strips each assigned feeding devices for the supplied at equal intervals Goods from a folding device arranged above the first conveyor for forming the packing material strips to hoses, furthermore from a transverse to the first conveyor extending device for compressing the formed tubes between the inserted goods as well as from a subsequent second conveyor for removal the closed packaging trolleys, especially for packaging ice cream jam, characterized in that the folding device (b) for forming a tube as one in a known manner the protruding edge parts of the strips (w) in a vertical position merging hemming device is formed and that for pulling off known per se the packaging connected as a chain, the second conveyor (E 2) from the packaging tube receiving lower conveyor chain (128) with conveyor strips (129) and from one after the di1l'orrichtung (137, 138) designed as a sealing device beginning further There is a pair of conveyor chains (176, 182), of which, as is known, the one chain (176) below, the others (182) are arranged above the packaging tube and both chains (176, 182) with cooperating press and turning jaws (173, 174) are provided and wherein all the chains of the second conveyor (128, 176, 182) with lower Speed than the first iEBrdererer (El) are movable in such a way that the length changes of the packaging must also be compensated for when it is added. 2. Verpaclmngsmaschlne according to claim 1 with a feeding device, which has several feed chutes for the objects and in which each line has one A: blow to intercept the falling movement as well as an ejector that can be swiveled at intervals is assigned, characterized in that the interception stop (35) each below each packaging strip arranged and in each channel (26) one synchronous with the exit thrower (43) pivotable wall (39) is arranged such that it is in the closed position holds the collapsed object in an inclined position in the conveying direction and lets the object tip over in the open position. 3. Packaging machine according to claim 1, characterized in that the fold and length sealer guides (85) for the top edges of the packing material strip in areal relation, one above the first Conveyor lying and a slot (84) for receiving the edges of the Strip having sealing block (82) and in the slot on its opposite Side-extending resilient fingers (88) that support the top edges of the Compress strip, having. 4. Packaging machine according to claim 3, characterized in that the fingers (88) engaging the strip and upward in the direction of travel of the strip have inclined portions (88 a) which raise the edges of the strip. 5. Packaging machine according to claim 3, characterized in that after the sealing blocks (82) a distributor piece (91) for receiving the sealed edges of the strip upon exiting the sealing block (82) as well a device (93, 94) for the supply of air after the distributor piece (91) are provided to cool the edges of the strip. 6. Packaging machine according to claims 1 to 5, characterized in that that the pressing device serving as a sealing device consists of a preheating jaw (135) and a pair of jaws (137, 138) following at a distance, of which the lower jaw (138) is heatable and wherein the preheating jaw (135) and the upper Jaws (137) on the one hand and the lower jaw (138) on the other hand in a known manner each arranged on a rod (141, 142, 149) that can be driven in the manner of a parallel crank are. 7. Packaging machine according to claims 1 to 6, characterized in that that the jaws (173) on at least one of the chains (176), as known per se, resiliently mounted perpendicular to their direction of movement and by means of pressure strips (193) are displaceable in the direction of the opposite jaws, each of the displaceable jaws (173) from one of the number of packaging tracks corresponding Number of independent jaw parts (186), one on each of which via springs (195) supported pressure bar (193) acts. Publications considered: Austrian patent specifications No. 194 326, 197 275; French Patent Nos. 1,059,841, 1088924; British Patent Nos. 591 442, 739 807; U.S. Patent Nos. 2,265,253, 2,462 254, 2705352.