RU4962U1 - Heat Shrink Packing Machine - Google Patents

Abstract

A heat-shrink packaging machine containing a bed on which is located a film supply device for forming a package, a receiving device, a film cutting unit and a conveyor, characterized in that the receiving device is made in the form of two tables, a supply and an unloading, located on the bed, and between the tables is installed the vertical web for forming the package and the unit for cutting and welding the film, the feeding and unloading tables are equipped with conveyors associated with the electric motor, and the feeding table is additionally nabzhen pair of microswitches mounted in the conveyor at a distance from each other equal to the maximum length pakuemogo preform.

Description

P AND AND HEAT SHRINKING PACKING MACHINE The new model belongs to the packaging equipment and can be used to form packaging in film using pallets and without them. There is a natural device for packing bottles on a production line (EPO No. 0526184, B65 B 21/06, 03.02.93 publ. RZh ISM issue 34 No. 10 of 1994). It contains a conveyor for the continuous supply of boxes through the loading position, a product feeding mechanism in columns that have a ramp along which the products are moved in a line one by one in a row. The loading position is located beyond the end of the ramp. Separation discs are installed between the product columns, each of which is equipped with bosses and is designed to separate the rows of products as they arrive at the loading position of the boxes. These bosses slow down the movement of the product rows, creating gaps between them that coincide with the front and rear walls of adjacent boxes at the loading position. The disadvantage of this device is the need for containers in the form of boxes. It is a natural device for grouping piece objects and packing them in containers (SU No. 1832099, B65 B 21/06, priority 10.01.90). It contains a hopper-type drive, a conveyor for stepwise or continuous movement of objects, a cassette with guiding partitions. Spring-loaded petals are placed under the partitions. The unloading branch of the conveyor has a cutter. The items grouped in the packaging must be transported in an additional special container, since it is possible to unwind the tape. This is a significant drawback of the device.

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I Z P T P natural packaging device (US patent No. 5155982, Wb5 B13 / 22,20.10.92g, RZH ISM release 34 No. 10, 19994). It contains a drive that provides the formation of a closed loop from the packaging tape by feeding the tape into a guide piece surrounding the packaged items. The device contains a drive with branches. The control unit switches the drive, providing reverse movement of the packaging tape after the complete formation of a closed loop. The connecting device fastens the parts of the tape forming a closed loop and superimposed one after the other after tensioning the tape. The drive is equipped with drive rollers for direct and reverse feed of the tape. The rollers rotate from the drive. The device has a complex structure. The solution to which the proposed utility model is aimed is to increase the ease of use while simplifying the design. The stated problem is solved as follows. the shrink packaging machine contains a bed on which there is a film supply device for forming the packaging, a receiving device, a film cutter unit, a conveyor, and is characterized in that the receiving device is made in the form of two feeding and unloading tables located on the bed, and a vertical web is installed between the tables for forming the packaging and the unit segments and welding of the film, the feeding and unloading tables are equipped with conveyors associated with the electric motor, and the feeding table is additionally equipped with an array of microswitches installed in the conveyor at a distance from each other equal to the maximum length of the packed briquette. the proposed utility model meets the criterion of “novelty since from the scientific and technical literature there are no known similar designs of packaging machines characterized by the above-described set of features. On Te Pr Up Op Fig. 1 schematically shows a General view of a heat-shrink packaging machine, Fig. 2 a, b, c, d, d are diagrams of the technological stages of packaging formation, in Fig. 3 node design of the receiving device. the shrink packaging machine contains a bed 1, on which there is a receiving device made in the form of a bag, its table with a conveyor 2, unloading; a table with a conveyor 3, a welding unit and pieces of film 4. On the brackets of the bed there are upper 5 and lower b of the feeder films from rolls on packaging. The formed packaging along the conveyor 7 enters the heat-shrink tunnel 8 and the cooling tunnel 9. In addition, the packaging machine contains an electromechanical control device 10, a pneumatic control unit 11. The volumetric device is shown in Fig. 3 and contains the feeding and unloading tables 2 and 3, in which conveyors of the same design are installed, each of which consists of a belt 12 and rollers 13. At the beginning of the feeding table, for convenience of feeding the packaging, a receiving shaft 14 is located, at the end of the unloading table there is a guide al package 15 for transmission onto the conveyor 7. The conveyor feeding table mounted microswitches 16 and 17, the forging machine operates as follows. the rotor from the storage table of the technological line installs (manually or automatically) a packable briquette onto the conveyor of the feeding table 2 of the packaging machine. The conveyor is driven by a drive shaft 18 connected through a clutch with a gearbox and an electric motor. Moving through the welding zone to the conveyor of the unloading table 3, the movement of which is similar to the conveyor of the feeding table 2, the packaged briquette closes the microswitch 17 "Pack passage, which stops the movement of the conveyor of the unloading table 3 after a certain period of time to start the mode of cutting and welding of the film. The next briquette entering the feeding table 2 closes the microswitch 16 P

g /// “The line that stops the conveyor of the feed table until the welding process of the previous packaging is completed. Then the movement of both conveyors resumes. If the welding process is not conducted, the microswitch 16 is blocked. The wreath from the upper and lower rolls passes through the welding unit and segments 4 and forms a vertical web into which the packed briquette gets when moving from the feeding table. When the packed briquette is moved to the unloading table, it carries the web along with it and stops on the unloading table. 3 - The welding frame of the welding unit and the segments of the film 4 are lowered and carry the films to the welding cam in width in two places located at a certain distance from each other. Squeezing between the clamps of the film, the knife cuts the web, then each seam is welded and, on the one hand, a package closed in the film is formed, on the other hand, a vertical web to form the next package. The resulting packaging briquette is fed to a conveyor 7, which passes it through heat-shrink 8 and cooling tunnels 9, where the final formation of the package takes place. To ensure technological modes of welding and trimming of the film, a certain relative position of the packed briquette relative to the device of welding and trimming, as well as to automate the packaging cycle, limit switches located at a certain distance from the device are cut and welded and triggered by exposure to them packaged briquette. The packaging machine is controlled by a special electromechanical control unit. The knife control of the device segments and welding is carried out pneumatically. A uniform temperature distribution in the shrink tunnel is provided by the fan.

A prototype of the packaging machine was made, which is characterized by the following parameters: adjustable productivity, pack / h, not less than - 700 conveyor belt speed, m / min - 1-15

package dimensions, mm (maximum): length - 350, width - 420, height - 300.

The proposed design of the packaging machine will find application in the food, chemical and other industries, where it is required to pack individual piece items for their transportation and storage.

Claims (1)

A heat-shrink packaging machine containing a bed on which is located a film feeding device for forming a package, a receiving device, a film cutting unit and a conveyor, characterized in that the receiving device is made in the form of two tables, feeding and unloading, located on the bed, and between the tables the vertical web for forming the package and the unit for cutting and welding the film, the feeding and unloading tables are equipped with conveyors associated with the electric motor, and the feeding table is additionally nabzhen pair of microswitches mounted in the conveyor at a distance from each other equal to the maximum length pakuemogo preform.