SU644669A1 - Apparatus for wrapping-up square articles - Google Patents

Description

one

The present invention relates to packaging equipment, in particular, machines for wrapping rectangular objects, such as pan bread.

A device for wrapping rectangular objects, comprising a horizontally rotatable platform with movable followers for packaging material 1, is known.

The disadvantage of this device is the low productivity and complex maintenance of its mechanisms.

The purpose of the invention is to create a machine in which the movement of wrapped objects and packages would occur at the same horizontal level available for maintenance, and increase productivity by reducing the inertia of the main moving working means.

This goal is achieved by the fact that a pusher is mounted on the turntable, and on two opposite sides of it, an axis is mounted on a pair of pushers, one of which serves to feed objects onto the platform and the other to withdraw wrapped objects.

The guides on the turntable are spring-loaded and, in the initial position, are set at a distance smaller than the size of the object passing between them, and the pusher on the turntable is provided with rollers for interacting with these guides.

the distance between the edges of which is larger than the size of the object, and in the initial position the rollers are located outside the limits of the guides. A guide is made in the platform.

a groove in which a slider connected to the platform on the platform is placed, which is hingedly connected to a lever-toothed planetary mechanism installed on the platform, the driving shaft of which is toothed by a gear connected to a rail mounted on the platform in rails. The movable benders located on the platform are mounted loosely on horizontal axles and notched

The gears are connected to the second rail mounted on the platform in the guides. Both slats have stops on the ends, interacting with the pressure mechanisms located in the frame.

FIG. 1 shows a longitudinal section of the device; in fig. 2 - the same, section A-A of FIG. one; in fig. 3 - section bb FIG. 1 but a turntable; in fig. 4 is a view of FIG. 1 on the push mechanisms; in fig. five-

a section of YYY FIG. 3 on the lever-toothed

planetarium) mechanism; in fig. 6 - vndD FIG. five; in fig. 7-15 - the location of the working bodies, wrapped object and wrapping material at certain stages of the wrapping process; in fig. 10 is a sectional view, E — E of FIG. 9; in fig. 16-17 - forms of a partially formed package at various stages of the wrapping process; in fig. 18 is a final package.

The device consists (Fig. 1) of a bed I, a wrapping material supply mechanism 2 from a roll, receiving followers 3, a platform 4 rotatable in a horizontal plane, a pair of output followers 5 for wrapped objects, a final package forming mechanism 6, a package gluing mechanism 7. On the sidewalls 8 and 9 of the frame 1 (Fig. 2) and the lower frame 10, all the mechanisms of the device are installed. From the drive AND rotation, the V-belt is transmitted to the camshaft 12, from which the second camshaft 13 and the chain conveyor of the pasting mechanism 7 are driven by chain gears. From the chain transfer shaft 13, a wrapping material feed mechanism 2 is provided. The shaft 12 of the conical gears 14 transmits rotation to the shaft 15, on which the carrier 16 of the Maltese cross is mounted 17. The latter, through the shaft 18 and the bevel gear 19, periodically rotates the shaft 20 of the platform 4. The wrapping material feed mechanism consists of a driving drum 21; a pressure roller 22 mounted on spring arms 23; a shock-absorbing lever 24 having a roller 25 at the end; guide rollers 26; A self-locking brake 27 is supported on the table 28. A knife 29 serves to cut the wrapper, on both sides of which spring-loaded clamps 30 are placed. Opposite the knife with the clamps, the support 31 is fixedly fixed to which we press the wrapper when cutting. A slot is made in the support for the passage of the knife during the cutting process. A guide roller 32 is mounted under the support. The knife with the clips is mounted on two levers 33 fixed on the shaft 34 and driven by the fist of the shaft 13.

For the vertical movement of the wrapper, two pairs of tongs 35 serve. Each pair has two jaws interconnected by toothed sectors. One of the jaws has a roller lever 36 for controlling the opening of the jaws. The jaws are closed by a spring. The axes of the jaws are fixed in sliders 37 placed in vertical guides 38. Vertical movement of the forceps is communicated through the levers 39 fixed on the shaft 40 and driven by the shaft 12. The opening of the forceps in the lower position is carried out by fixed copiers 41. For controlling the forceps in the upper position are two levers 42, which have pressure pads 43 at the ends for forceps rollers 36 and fixed to shaft 44. Levers 42 are controlled from shaft 13 by a fist, to which spring 45. To lock the wrapper supply in the absence of bread, tromagnit 46.

The receiving pair of pushers 3 for supplying items to platform 4 consists of front 47 and rear 48 pushers connected by a melade with themselves toothed sectors and sitting on two shafts that have supports in two sliders 49. One of the shafts is provided with a lever with a roller 50, the input Sich

in the groove of the movable guide 51 mounted on the slider 52. The sliders 49 and 52 are placed in the non-stemming guides and driven from the shaft fists 13, for which the sliders 49 are connected by means of two

levers 53 mounted on the shaft 54. The rotary platform 4 consists of a housing 55 (FIG. 3) fixed on the shaft 20, in which grooves are made: a longitudinal 56 n two transverse 57. In the groove 56 is placed

a slider 58 on which a pusher 59 is fixed with rollers 60 installed along its edges, the size between the outer edges of the rollers being larger than the size of the object to be wrapped. In the slider hole

pin 61 freely mounted in lever 62 (FIGS. 5 and 6). The lever is fixed on a gear 63, engaged with a gear 64. The axles of wheels 65 and 66 are fixed in lever 67, fixedly mounted on a shaft 68. Wheel 64 is hooked with a gear wheel 69, fixedly fastened with a brace 70 with a housing 55. The shoulders of the levers 62 and 67 are the same. The wheels 63 and 65 have the same number of teeth, and the wheel 69 has twice the number of teeth than the wheels 63 and 64. On the shaft 68, there is a fixed gear wheel (71, engaging with the rack 72). On the side walls of the housing 55, the axes are fixed 73, on

which sit levers 74 connected to the toothed sectors 75. The levers carry the fold-down blades 76. The sectors 75 engage with the sectors 77 of the shaft 78, which the gear 79 engages with the rack

80., The rails 72 and 80 are freely seated in the guide holes of the housing 55 and each has stops 81 on both ends. Opposite the rails are pressure rods 82 (Fig. 4) that can move in

openings of the non-decile body under the action of the levers 83 from the cams of the shaft 12. Each rail corresponds to two shafts located in one horizontal plane and symmetric with respect to

axis of rotation of the platform. This is done because the slats 72 and 80, occupying the polishing to the left of the axis (in FIG. 3), after rotating the platform 180 ° around the vertical axis, opened the PBX to the right of

her In the initial polishing, the left (in FIG. 1) blades 76 are placed in the left groove 57, and the upward-facing kpak blades do not exceed the level 84 corresponding to the bottom of the object to be wrapped. The right (in FIG. 1) blades 76 are located at a height above the level of the top of the object to be wrapped. Spring-loaded guides 85 are also movably mounted in the side walls of the housing 55, the distance between which is smaller than the size of the item to be wrapped. Outlet pushers 5 are mounted on shafts supported in brackets 86 of sliders 87 and fitted with levers with rollers 88 inserted into the groove of the moving guide 89. The guide bar is fixed on the slide 90. The sliders 87 and 90 are placed in fixed guides and driven from the cams of the shaft 12, for which the sliders 87 are connected by rods with the levers 91 fixed on the shaft 92, on which the levers 83 are also freely seated. The mechanism of the final formation of the package consists of movable benders 93, floor 94 and fixed guides 95 and 96, enshrined on us tile. The benders 93 are mounted on levers 97 mounted on a shaft 98 and driven by a cam of a shaft 12. The benders have jagged protrusions that fit into the grooves of the guides 95. Between the guides 95 and 96 there are slots 99 that are directed at an angle from bottom to top, and k) W, their 96 creations 100, directed at an angle from top to bottom. The bag sealing mechanism consists of a chain conveyor 101 with pushers 102, two side and two lower heaters 103, two side and two lower refrigerators 104. The pushers 102 on the upper branch of the valuable conveyor are placed in the gap between the lower heaters and the lower coolers. For the direction of movement: The objects in the tent of the Tractors are flooring 105 with guides attached to Them 106. The level of flooring. 105 coincides with the level of platform 84 and the level of flooring 94. At one of the guides, the sensor has a 107 bread, which can be used with a contact, contactless, or any other known switch. The device works as follows. Objects 108 (Fig. 7) to be wrapped are set manually or mechanically operated with the device operating on the floor 105 in such a way that by the beginning of the work cycle the object is in front of the push rod 48. Under the action of the shaft 13, the levers 53 move to the extreme left position sliders 49 with pushrods 47 and 48. The item placed in front of the pushrod 48 moves C to the initial position for receiving it by pushing it 47, which at this time is harnessed in Crane Lev yoloyeny. At the same time, the sensor 107 is found, having created the signal of the ylichi. Further operation of the device was performed by GodT1ri Nalichy CffTKaJfa. In the absence of a signal, wrappers are blocked, which will be discussed in a later manner. After moving the yzluybv 49 to the extreme left position under the action of the shaft 13 of the shaft 13, the slide 52 with the track 51 is pressed, the lever is the first lever with the roller 50. The pusher 47 is rotated to the lower position, the gear 48 is also rotated. at the same time they are placed in the groove of the turntable and in the groove between the flooring 105, turning out to be the level 84 of the movement of the bottom of the Object. After lowering, the pushers by the levers 53 return to the initial (extreme right) position, the arrival under the objects on the floor, followed by the Guide 51 being lowered, turning the pushers 47 and 48 to the initial position. When the pushers move to their original position, the pinch 35, under the action of the levers 39, which move the sliders 37 from the cam shaft 13, are raised to the upper position. In doing so, their levers with rollers 36 run over the pads 43 and turn to the left, opening the tongs of the jaws. Tongs with. open jaws rise past roller 32 above the level of the knife slot in support 31. Slots are made in the roller and in the support for passage of tongs. Tongs jaws are held on both sides of the wrapping material. After stopping the forceps in the upper positions, the levers 42 with the platforms 43 retract to the right under the action of the Spring 45 and the shaft shaft 13, stop pressing the rollers 36 of the forceps 35, and the forceps jaws close under the action of the spring, WRAP WRAP material. The tongs begin to move down under the action of the levers 39, pulling the wrapper over the rollers 26, table 28 under the brake 27 and lifting the levers 24 behind the roller 25. When lifting the lever 24, they stop pressing 23, which, under the action of their springs, press the roller 22 to permanently rotating the drive drum 21, as a result of which the wrapper is unwound from the roll. When the forceps approach the lowermost position, the rollers 36 and the jaws, on the junction box 41, open the jaws of the forceps and release the wrapper. After the tongs are lowered, the levers 42 return the plates 43 to the initial (left) position. If the object at the beginning of the stroke of the pusher 48 was not placed in front of it, then at the movement of the pusher it will not press on the sensor 107. As a result, the locking device 46 will be triggered, the bruise of which is 1 1 in the path of the lever 42. the upper position, when the cam of the shaft 13 should allow 45 to move the levers 42 to the right, the latter are pressed into the bark of the magnet, their roller moves away from the cam, and the platforms 43 will remain in the initial position. The tongs of the tongs will remain open and the tongs will descend without a wrap. Thus, in the absence of the item to be wrapped, the wrapper is not supplied.

By the time of lowering the tongs with the wrapper in the lower position, the pushers 47 and 48 begin to double with objects to the left. The pusher 47 brings the object to the wrapper and presses it together with the wrap to the pusher 59 on the turntable 4. After that, the upper rods 82 under the action of the lever 83 from the cam shaft 12 begin to move to the right, pressing the stop 81 of the left end of the rail 72. The rail 72, non-displacing sliding to the right by means of a gear wheel 71 rotates the shaft 68 with the lever 67. When turning the lever 67, the gear wheel 64 rolling on the stationary wheel 69 rotates the wheel 63 with the lever 62 fixed on it in the opposite direction. wheels 63 , 64 and 69 and the equal shoulders of the levers 62 and 67 when the shaft 68 rotates, the finger 61 on the lever 62 will move in a horizontal plane along a straight line passing through the axis of the shaft 68. At the same time, the finger moves along the groove 56 a slider 58 with a pusher fixed on it 59. The movement of the pusher 59 takes place synchronously with the pusher 47, so that the wrapper, which is depressed by the pins 36 and clamped between the object 108 and the pusher 59, moves with them (Fig. eight). The lower edge of the wrapper, bending on the edge of the body 55 of the platform, partially covers the bottom of the object, and the upper branch of the wrapper, rolling on the roller 32, continues to act on the lever 24, which provides, as described above, the unwinding of the roll.

In the process of moving the pusher 59, the rollers 60 slide onto the guides 85. Since the distance between the edges of the rollers 60 is larger than the size of the object, they move the guides apart, which at the same time compress their springs, and the wrapped object moves between the guides. Speakers on the sides of the edges of the wrapper are folded guides on the sides of the object, partially closing them. After the edge of the object 108 adjacent to the pusher 47 passes over the transverse groove 57, the pusher 47 stops moving and, in the opposite direction, returns to its original position earlier, and the pusher 59 continues to move to the opposite edge of the platform. In doing so, the rollers 60 extend beyond the guides 85, which, under the action of their springs, clamp the object.

After the object is stopped by the action of the shaft 13, the levers 33 are turned to the left, the clamps 30 press the wrapper against the support 31, the knife 29, the entrance to the slot of the support 31, cuts the wrapper. The knife with clamps is returned to the initial position by the levers 33, and the end of the wrapper coming from the roll is ready for the next grip with forceps, because after the object stops moving the wrapper stops, the drum 21 with the roller 22 does not continue to unwind it until the levers 24 Do not

is lowered to its original position, in which, by pressing on the levers 23, the roller 22 is retracted from the drum, thus stopping the unwinding. The wrapping material after stopping the movement of the object is under the action of the springs of the lever 24, however, the brake 27, wedging the wrapper on the table, will prevent it from pulling out from under the object. After cutting the wrapper under the action

knuckle shaft 12 through lever 83 nilsnye rods 82 move to the right, pressing the stop 81 of the left end of the rail 80. The rail moving to the right, through the wheel 79, the shaft 78 n toothed sectors 77

rotates axle x 73

75 and the levers 74 connected to them clockwise (FIG. 1). At this turn, 74 Lonasti 76s mounted on the levers, located to the right of the platform axis

(Fig. 1), lowering down, put a wrap on the top and back sides of the object (Fig. 9). In the polossenii blades

The wrap partially surrounds them, as shown in FIG. 9, n enters with a groove

57, which prevents the wrapper from moving away from the object to be wrapped during the subsequent rotation of the platform. After these operations, the object in the wrapper takes the form, depicted: shown in FIG. 10 and 16, and the rods 82 return to their original position.

To this momopept time roller drove

16 enters the groove of the cross 17 and turns

him that through gears 18

causes the shaft 20 to rotate 180 ° with the body 55 fixed on it. After the platform rotates towards the object, the bending arms 93 move from the shaft 12 shaft by levers 97. The rotation of the platform 180 ° causes the pusher 59 moved to the left edge of the platform, is in the initial position, and the blades 76, raised above the left side of the axis of the platform, are also on the right side.

The end of the turn of the platform coincides with the beginning of the working stroke (left) of the pusher 47. As already indicated, after pri-. press the pusher 47, the paddle and the wrapper to the pusher 59, but the next one starts to move to the left (Fig. I), unclenched with the rollers 60

guides 85. With this movement, the pusher 59 shifts the iredmet 108, which is on the platform, to enter it between the bending stations 93, which fold the protruding edges of the wrapper onto the sides of the object, finally closing them. At the same time, the edge of the wrapper, which has partly rounded the blades 76, is pulled out from under them and finally closes the bottom of the object (Fig. 12). The item is shifted from the platform to the floor 94, while the benders 93 return to their original position. The wrapped object takes the form shown in FIG. 17

Simultaneously with the start of movement of the pushers 47 and 48, the movement of the pushers 5 begins under the action of the levers 91 from the cam shaft 12, which moves the creeps87. After moving the pushers 5 to the extreme left position, the slider 90 from the cam shaft 12 rises along with the guide 89, which, acting on the levers with rollers 88, turns the pushers 5 counterclockwise. The lower edges of the pushers are at a height higher than the top of the wrapped object. Under the influence of photoforms91, pushers move to the right over objects. When the followers 5 come to the extreme right (initial) position, the follower 59 terminates the movement of the object from the platform. The guide 89 is lowered, the pushers 5 are rotated clockwise. At the same time, the right one of the pushers 5 turns out to be a subject shifted from the platform (Fig. 13). Moving the object along the floor 94, the right pusher 5 rises and returns to its original position, and the left one of the pushers 5 becomes its place. At the next working stroke of the pushers 5 to the left, the subject is brought along the floor 94 to the place where it is picked up by the chain conveyor 101 pushers 101 .

When moving the object in the wrapper by the pushers 5 past the guides 95 and 96, the folded valves of the wrapper fall into the slots of the guides. First, the bottom flaps fall into the slots 99 and, when moving along the guides, fold the guides 95 and 96 onto the sides of the object (Fig. 14). Following this, the upper flaps fall into the slots 100 and are bent and guiding 96 also to the side SIDES of the object, which then acquires the final shape shown in FIG. 18.

After the shift, the pushers 5 out

Of the flooring 94 of the object 108, it is moved by the pushers 102 of the evenly moving chain conveyor 101 (Fig. 15) first along the lower heaters 103, being compressed by the side heaters, then along the lower refrigerators 104, being compressed by the side refrigerators. In the course of this movement, first the melting and then the hardening of the adhesive

or welding butt wrapping material. The glued package with the product is brought out by the pusher 102 outside the device. The present invention will improve the performance of the device for wrapping pan bread and will give an economic effect from the introduction of one machine of 5.0 thousand rubles.

Claims (3)

1. A device for wrapping rectangular objects, for example, pan bread, containing a horizontally rotatable platform with movable bendables for packaging material, characterized in that, in order to increase productivity and improve service conditions, a rotator is mounted on the rotary platform, and on two opposite sides of it along the axis, mounted on a pair of pushers, one of which serves to feed the items onto the platform, and the other to pull out the wrapped items. 2. A device according to claim 1, characterized in that the pusher mounted on the platform has rollers to facilitate the passage of objects. 3. A device according to claim 1, characterized in that the pusher is mounted on the platform by means of a slide located in the slot of the platform, wherein the slide is pivotally connected to a lever-toothed planetary mechanism mounted on the platform, the drive shaft of which is connected to the platform installed in the platform rail guides, and the movable benders for the investment material are loosely mounted on horizontal axes and the gear the transfer is connected with the second rail located on the platform in the guides, both rails at the ends having stops interacting with the push mechanism fixed in the frame of the device. Information sources, taken into account during the examination 1 USSR Copyright Certificate No. 172672, cl. B 65B P / 28, 1964. "" 74 82 Rygl gd AT 5 61 68 1 SHU // 7 777SH 6Z S} 67 / 66 fuz.S Rig. & W 59 Fig.b, j .W S5 FIG. eleven 85 s . we V s - “7 75 57 95 f 9 HF I 7S G08 59 FIG. 72 3S sh fuz. ii ( fui.lB FIG. 17 t. / S4Rig. at