SU602412A1 - Device for enclosing articles into packages of thermally sealable stock - Google Patents

Description

The invention relates to packaging and can be used in the food and chemical industries. A device for packaging into bags of heat-sealable material is known, comprising a roll holder, a feeder, a device for forming a longitudinal seam on the sleeve, a conveyor with molds having two parallel walls, and a mechanism for sealing IJ bags. The known device is the closest solution to the described invention to the technical essence and the achieved result. However, the known device does not provide packaging in bags with side folds. For the purpose of packing in bags with side folds in the described packing device, bags of heat-sealing material are vertically fixed on the conveyor, one of them is movable, equipped with a clamp, two flexors, a movable substrate and two side fold folds. In order to increase the reliability of the form, they are reinforced so that they can be rotated 90 ° relative to the vertical axis. At the same time the motionless wall has the G-shaped form with an aperture. FIG. t-4 shows schematically a device for packaging in bags of heat-sealing material; in fig. 5-8 is a flow chart of process operations. The device (Figs. 1, 2 and 3) contains a roll holder I, a feeder 2, a device 3 for forming a longitudinal seam on the sleeve, a conveyor 4 with forms 5 having two parallel fixed and moving walls b and 7, and a mechanism for sealing the bags. Walls 6 and 7 are mounted on the conveyor 4 vertically, while the wall 6 is movable and equipped with a clamp 8, two bends 9 and 10, a moving backing II and two deflecters 12 and 13 of the lateral folds. In order to increase the reliability of operation, the forms 5 are strengthened with the possibility of rotation by 90 ° relative to the vertical axis. The stationary wall 6 is L-shaped with an opening. The roll holder 1 is provided with a brake 14, stretching and holding rollers 15 and 16 for forming a stock of finished (free) packaging material in the form of a loop 17, a rotary knife 18 for separating the workpiece 19. a feeding conveyor 20. with clamps 21

to grip the blanks, roller 22, on which hangs the free end of the tape 23.

The turn mechanism of the mold includes a turntable 24 (Fig. 3) with two double-arm locking levers 25 and 26 and a ratchet sector 27. The device is equipped with two fixed stops 28 and 29 to act on the levers 25 and 26. The device also has a fixed tunnel 30 for rounding the blank around form 5.

Conveyor 4 contains drive and tension stations 31 and 32.

A device 3 for forming a longitudinal seam on a sleeve is mounted on a conveyor 33. The mechanism for forming the bottom of the bag is designed as conveyors 34 and 35 carrying irons 36.

Between the conveyor belt 33 and mechaliz.m, the image) and the bottom are fixed ujHua 37

for raising the IKX-VIOKK li and) a15l; -: moving (not shown) to move the movable wall 7 of the forms 1 5 and its beaters 12 and 13, and by the tension station 32 - the stationary direction 38 to raise and hold the clamp 8 forms.

At the exit of the bottom formation mechanism, guides (not shown) are installed to remove the movable wall 7 and dilute the benders 12 and 13 of the lateral folds for stretching the bottom and the flat-folded bag 39 and preparing it for filling with product.

A feeder 2 is mounted above the drive station 31 with the possibility of synchronous rotation with the latter and has dispensing heads 40 and a fixed nipple 41.

D. of receiving the filled bag 42 from form 5 along another net conveyor 4 under the forms a conveyor is installed with platforms 43 with vertical moving, vibrating for compaction of the product of a 1-s displacement in the horizontal plane donas (not shown). Next, a package sealing mechanism is installed, comprising two conveyors 44 with irons 45.

At the entrance to the bag sealing mechanism, guides (not shown) are mounted to move the movable wall 7 and flatten the deflectors 12 and 13 of the lateral folds of the mold, and at its exit the directions and wounds (not shown) to retract the moving wall 7 and breeding the flexors 9 and 10 and the bending irons 12 and 13 of the side folds of the mold to finally release the sealed bag 46 from the mold and transfer it to the discharge conveyor 47.

All parts and components of the device are mounted on the frame 48, inside of which the drive and other transmission and synchronizing mechanisms (not shown) are placed.

The entire motion path of the forms 5 of the conveyor 4 is divided into technological sections, namely, operations 49 and 50 for diluting walls, flexors and deflection of the 1st form of lateral folds, steps 51 and 52 for re-shaping the form by 90 ° relative to vertical

axes and operations 53 n 54 but lifting the clamp 8, accepting and fixing the workpiece on the mold and forming the movable substrate 11 of the form, steps 55 and 56 for forming the sleeve blank 57 by bending the workpiece around the mold, operation 58 for turning the mold around the vertical axis, operation 59 but the formation of the longitudinal scar 60 1), 61, the operation 62 but the formation of lateral folds of the sleeve, the operation 63 for the formation of the bottom of the folded package 39 and the operation 64 for the leveling of the bottom of the flat-laid package, operation 65-67 folding the neck of the bag and sealing it.

The device works as follows.

From the coil, the continuously rotating rollers 15 draw the free end of the tape 23 of the packaging material to form 17. The free end of the tape is clamped in some part by the retaining roles 16), and the end itself hangs from the roll 22, mounted on the axis of the feeding conveyor 20. When the feeding conveyor moves, the free end of the belt lying on the roller 22 is caught by the clamps 21 of the feeding conveyor 20, as a result of which the loop 17 is selected. Next, using a rotary knife 18, the workpiece is cut from the clamped end 19 and a double feed conveyor 20 in the path of the conveyor movement — operations 54 and 55 — are fed from bottom to top between the moving forms onto the form of operation 54, the pressure 8 of which is due to the action of the fixed direction 38 on the lever (not shown) in a raised position.

When the workpiece 19 is in contact with the plane of the movable wall 7 of the mold, the clamp 8 is lowered and tightly presses the blank to it. Further, the form with the workpiece on the housings 55 and 56 enters the stationary tunnel 30, as a result of which the lateral edges of the workpiece 19 are bent and pressed against the ends of the walls

molds, i.e., from a fixed tunnel, the mold is wrapped on three sides with a blank.

Then, using bending machines 9 and 10, due to their interaction with non-movable copiers (not shown), the side edges of the workpiece are finally pressed to the plane of the fixed wall 6 of the form, and the side edges of the workpiece overlap each other and around the form the sleeve 57 forms. At operation 56 and 58, due to the interaction of the form-locking lever 26 with the fixed support 28, the forms are rotated by 90 ° with the output of the aligned longitudinal edges of the sleeve 57 to the outer side of the movement path of the conveyor 4.

When moving the form to operation 59

longitudinal seam welding

60 on sleeve 61 using tool 3

to form a longitudinal seam on the sleeve.

In the future, the device performs the formation of the bottom of the package nl operations 62-63,

whereby the movable wall 7 of the mold is closely blended to the fixed wall 6, and the deflecters 12 and 13 of the side folds of the sleeve are inserted in front and behind between them and the folded flat sleeve is fed to the irons 36 of the conveyors 34 and 35.

Simultaneously with the convergence of the walls, the substrate I is lifted from the stationary tire 37, and the lower edge of the folded and released from the substrate sleeve 61 is tightly clamped between the working surfaces of the irons 36 and welded. Then the deflectors 12 and 13 of the side folds emerge from the gap between the walls of the mold, and the movable wall 7, moving away from the fixed wall 6 to operation 64, stretches and straightens the bottom of the flat-folded bag 39, preparing it for filling with the product.

On the curvilinear section of the path of movement of the forms, using the accompanying dosing grldok: 4, the packages 42 are filled with the product. When switching to another rectilinear section of operation 65, the filled packages 42 of water are drained by the weight of the product from onto the conveyor platforms 43, (FIG. 4), where b is the condensation of the product. At the same time, a part of the product-free neck of the bag remains on the mold.

Upon further movement of the form together with the platform in operation 66, the neck of the bag folds to form side folds in it due to the mixing of the moving wall 7 and the fixed wall 6 and introducing the side folds 12 and 13 between the THHMH. At the same time, the packet is also shifted towards a fixed stacking shape. Next, the package and the platform in operation 67 are supplied to the irons 45 of the conveyors 44, where, in addition, welding the neck (sealing) of the package takes place. Then, the final sealed bag 46 is retracted by the outlet conveyor 47 of finished products, and the form released from the bag is moved to operations 51-54 to receive the workpiece again, for which steps 49 and 50 are removed from its fixed wall and fixed. mf flexors with deflector my. and for operations 51 and 52, the shape is rotated 90 ° due to the action of the fixed stop 29

on two shoulders lever-lock 25 (Fig. 3). In steps 53 and 54, the pressing of the mold 8 is lifted, which results in the preparation of the mold for repeating the packaging cycle. Thus, the technological process of manufacturing, filling and sealing bags in continuous motion is carried out.

The described device for packaging into bags of heat-sealable material allows for packing of the product into bags with side folds, which simplifies the packaging-packing process when transferring a ready-made unfilled bag, in particular a soft bag, for filling it with a product and. thereby reducing scrap rates and reducing downtime for packaging equipment and increasing productivity.

Applying rotating forms will improve maintenance conditions.

2

Claims (3)

1. A device for packaging bags of heat-sealing material comprising a roll holder, a feeder, a device for forming a longitudinal seam on the sleeve, a conveyor with molds having two parallel fixed and movable walls, and a mechanism for printing the bags, characterized in that in bags with lateral folds, the stacks are fixed on the conveyor vertically, one of them is movable, equipped with a clamp, two flexors, a movable substrate and two flexors of the lateral folds. 2. The device according to claim 1, characterized in that, in order to increase reliability of operation, the molds are strengthened so that they can be rotated 90 ° relative to the vertical axis. 3. The device according to p. I, characterized in that the fixed wall is L-shaped with an opening. Sources of information taken into account in the examination: 1. USSR author's certificate f 345056, cl. B 65 B 5/02, 1970. la I ". LZ .. ".," T. U-. and V WOJ i 6 } W ".  y  "Ch j jfc