SU1033374A1 - Apparatus for packaging articles into film - Google Patents

Abstract

A PACKAGING DEVICE IN FILM OF PIECE PRODUCTS, containing upper and lower roller supports, mechanisms for film welding and cutting, mounted on a lifting-lowering carriage, a device for directing the film, an intermediate roller for feeding the film, a clamp for J fixing products and a table. about the fact that, in order to increase the production efficiency, the bottom support is mounted on the trolley for changing film rolls, the device for deflating: the film is installed with the possibility of lifting and lowering movement together with mechanisms for welding and mfeHK cutting, the intermediate roller has fixing screws with dies at the ends of the roller speed manual installation, and the clamp is equipped with springs; we return, which are installed stepwise on the guide rods, using rings and screws. (L

Description

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The invention relates to equipment for packaging piece goods into a film, mainly products made from polymeric materials.

A device for wrapping piece objects into a film, containing a mechanism for forming a shell, located between the platforms and consisting of two parallel plates, additional intermediate plates hinged to them, brake rollers, mechanisms for welding and cutting a film, a device for smoothing a film tl .

The disadvantage of the device is the unreliability of its work.

The closest technical solution is a device for wrapping in a film containing upper and lower. Roller supports, mechanisms for welding and cutting the film mounted on the lifting-lowering carriage, a device for straightening the film, an intermediate roller for feeding the film clamp for fixing products and table 2 D.

The disadvantage of the device is low productivity.

The aim of the invention is to increase productivity.

In order to achieve this goal, in a device for packing into a film piece goods, containing upper and lower roller supports, mechanisms for welding and cutting of a film, mounted on a lifting and lowering carriage, a device for unfolding a film, an intermediate roller for feeding a film, a clamp for fixing products and the table, the lower roller support is mounted on a trolley for changing film rolls, the device for expanding the film is installed with the possibility of lifting and lowering movement together with mechanisms for welding and cutting Ki, the intermediate roller has fixing screws at the ends of combs, for stepwise setting roller Presser provided return springs, which are mounted stepwise on the guide rods by means of rings and bolts. . .

FIG. 1 shows a general zid of the device, side view; in fig. 2 clip assembly; in fig. 3 - screw jacks} in FIG. 4 - bottom roller carriage with a cart; in fig. 5,6 intermediate roller.

The device consists of a frame 1 and a frame 2. On the frame 1, there are upper 3 and lower 4 rollers, intermediate roller 5, receiving table 6 and pin 7.

On frame 2, there are mechanisms for transverse 8, 9 and longitudinal welding 10, film straighteners 11. And screw jacks 12.

The upper roller 3 is rigidly mounted on the frame 1, the lower roller 4 on the movable base 13, which is a carriage that can move around the wheels. A roll 14, 15 with a film, mounted on the rod 16, is mounted on each roller support.

The intermediate roller 5 for feeding the film from the upper roll 14 is fixed on the frame 1 with screws 17 having combs 18 at the ends.

Table b for receiving piece goods is a metal sheet rigidly fixed to the frame 1.

The clamp 7 for fixing the block of products on the receiving table b is mounted on the frame 1 and consists of a plate 19, two guides 20 and springs 21, and also a screw 22. The clamp motion

7 provides a pneumatic chamber 23.

The transverse welding mechanism, mounted on frame 2, consists of the upper 8 and lower 9 heating elements, driven by the pneumatic cylinder 24 through the chain transmission 25. Each heating element consists of two parallel plates with heated electric ribbons installed on them. The top 8 and bottom 9 heating elements are rigidly connected to the branches of the chain transfer 25. In addition, a film cutter is installed on the top heating element 8 with a pneumatic chamber 26 drive. The cutter is self-tensioned electric wire.

The longitudinal welding mechanisms 10 are mounted on the frame 2 on both sides of the receiving table 6 and contain upper and lower heating elements. Each element is a plate with an electrically heated tape installed on it. The elements are reduced using a pneumatic chamber 27.

The film straighteners 11 are mounted on the frame 2 in the same place as the longitudinal welding units 10. Each is driven by a pneumatic cylinder 28.

The device works as follows.

The unit of products is pushed through the film unrolled from the rolls 14, 15 onto the receiving table b. The film wraps a block of products from three sides. The clamp 7 fixes the block on the receiving table b. Arch top

8 and the bottom 9 heaters transverse welding, forming two parallel welds. The cutter separates these seams. One seam remains on the block,

and the other one connects the film from the top 14 and bottom 15 rolls. On the side of the block, the film forms a hole,

into which the film straighteners 1-1 are inserted, the straighteners 11 stretch the film until a narrow gap between its edges is obtained. The heating elements of the longitudinal weld. 10 are reduced to form the side seams. Thus, a flange-shaped seam around the block perimeter was obtained. In order to save film material and improve the quality of the package, the weld must run in the middle of the block height. In the process of packing, when switching from one packaged item to another, different from the previous one in height, it is necessary to retool the device.

The conversion is carried out in the following order. First, screws 17 are loosened on frame 1 and the combs 18 are retracted. The released roller 5 is moved stepwise up or down until the distance between it and the receiving table b is equal to the height of the packed items. Thereafter, each of the ends of the intermediate roller 5 is clamped with screws 17 and dies 18. FIG. 5 roller 5 is installed in the highest position. Then, the clamp 22 is weakened on the clamp 7 and the plate 19 is pushed or raised to obtain a gap between the receiving table 15 and the plate 19, which is slightly more than the height of the block of products. The reset spring 21 is set in steps on., - guides 20 by means of ring ends 29 and screws 30, which ensures a uniform load on these springs. FIG. 2 clamp 7 is set to the extreme upper position.

The mechanisms of transverse welding of 8, 9 film unwinders 11 and longitudinal welding 10 are placed on frame 2, which can move inside frame 1. Rotating screw houses0 frame 12 frame 2 together with the above nodes forming a flange-shaped seam around the perimeter of the block, raises or lowers . of the receiving table b to the position when the seam should be in the middle of the height of the packed object.

To install a new roll with a film, the bottom roller 4 together with the base 13 rolls out along the scaffolding 31 away from the device. In order to prevent the carriage 13 from tipping over, there is a support roller 32. V. Dits installation of a new roll by any

5, a lifting mechanism and a loaded cart 13 roll in to the inside of the device.

The advantage of the proposed device is to simplify the process, readjust to the new standard size of piece products, reduce the time spent on the transfer, which allows to increase the productivity of labor, eliminating manual labor with considerable physical effort.

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Claims (1)

PACKING DEVICE IN A FILM OF PIECE PRODUCTS, containing the upper and lower roller supports, mechanisms for welding and cutting the film installed on the lifting and lowering carriage, a device for extending + directing the film, an intermediate roller for feeding the film, a clamp for fixing products and a table that differs from the fact that, in order to increase its productivity, the lower roller support is mounted on a trolley for changing film rolls (the device for straightening the film is installed with the possibility of lifting and lowering along with mechanisms for welding and cutting lenks, the intermediate roller has fixing screws with combs at the ends for stepwise installation of the roller, and the clamp is equipped with return springs, which are mounted stepwise on the guide rods, using rings and screws. ) 00 JO Μ>