RU75372U1 - FILLING AND PACKING MACHINE WITH A DEVICE FOR FASTENING PACKAGES TO A STRIP - Google Patents

Abstract

The inventive utility model is designed for dispensing and packaging bulk products in bags of heat-sealable film, followed by attaching the manufactured bags to the strip and can be used in food chemical and other sectors of the economy.

The inventive filling and packaging machine with a device for fastening packages to a strip includes a dosing module, a frame on which a control unit is mounted, a packaging module, which is a film unwinding mechanism and a bag forming mechanism and a device for fastening packages to a strip. The package forming mechanism includes nodes of longitudinal and transverse welding, and the transverse welding unit consists of four independent heating elements. A device for attaching packages to a strip includes a unit for attaching packages to a strip, combined with a transverse welding unit and a strip unwinding mechanism. The strip unwinding mechanism consists of guide rollers and two brake devices controlled by the control unit, the first brake device being fixed relative to the machine frame, and the second brake device being rigidly connected to the transverse heater. Attaching the bag to the strip occurs simultaneously with the brewing of the upper seam of the bag with the product. The device for fastening the package to the strip also contains a section of strip segments, which is controlled programmatically by the control unit.

Description

The inventive utility model is designed for dispensing and packaging bulk products in packages of heat-sealable film with subsequent attachment of manufactured packages to the strip and can be used in food, chemical and other sectors of the economy.

The inventive utility model relates to bag making and packaging machines and, in particular, to those that attach the manufactured bags to the strip.

A device is known for detachable fastening of flexible packages to a demo tape (application RU 96118115 ВВВ 15/04, published November 27, 1998) including means for making bags, forming a package blank and giving it the configuration necessary for containing the product; a sealing point adjacent to the specified tool for making bags, and the sealing point includes sealing jaws designed to form a transverse seal on the workpiece, with the formation of the upper edge of the filled package extending from the bottom of the sealing point, and the lower edge of the unfilled package extending above the sealing point ; tape drive for feeding the strip adjacent to the sealing point; and at least one fixing plate for removably attaching the edges of each package to the tape while sealing the edges of the package with sealing lips. In a known device, the tape drive includes a stepper motor and a stepper wheel. The stepper motor rotates the stepper wheel, in a controlled manner, advancing the tape in the direction of the sealing point.

The disadvantage of the above device is the design complexity of the mechanism for attaching the package to the strip, due to the presence of a stepper motor with a stepper wheel.

A bag-making and packaging machine is known (patent RU 2314236 ВВВ 9/20, published 02.27.2005), which contains a dosing module, a control unit, a packaging module containing a film unwinding mechanism and a bag forming mechanism including transverse and longitudinal welding units. The known machine also includes a device for attaching packages to the strip, which includes

a transmission mechanism that feeds the fabricated bags diagonally downward, a strip transport mechanism and an attachment unit securing the packages to the strip. The strip transport mechanism includes a strip roll, a transporting engine, a drive belt, two drive rollers and a plurality of driven rollers. The attachment assembly includes a heater, a pushing cylinder, and a pressure member. The operations of welding the bag and attaching it to the strip are carried out sequentially: first, the bag is made (the upper seam of the bag is sealed), then the bag is transferred diagonally down to the assembly unit for fastening the bags to the strip, where the bag is actually attached to the strip.

A disadvantage of the described machine is the complexity of the design of the device for fastening packages to the strip, due to the complexity of the design of the mechanism for transporting the strip (engine, drive rollers, driven rollers), the presence of a transmission mechanism and a separate node for fastening the package to the strip. The presence of additional operations (the fabricated bag must be transferred down, and then attached to the strip) can lead to a decrease in machine performance, as the manufacture of the next bag can only be carried out provided that the previous bag is transferred to the mechanism for attaching the bag to the strip. In addition, the known device does not have the ability to form strips with a certain number of packets per strip.

The purpose of creating this utility model is to simplify the design of the device for fastening the bag to the strip at a high speed of manufacturing packages and forming a strip with a certain, predetermined number of fixed bags on the strip.

To achieve this goal, a filling and packaging machine with a device for fastening packages to a strip includes a frame on which a control unit, a dosing module, a packaging module, which is a film unwinding mechanism and a package forming mechanism, including longitudinal and transverse welding units, are installed, moreover, the transverse welding unit includes four independent heating elements, a device for attaching packages to a strip, consisting of a unit for attaching a package to a strip, combined with a pop unit welding and unwinding mechanism of a strip consisting of a roll with a strip, guide rollers and two brake devices controlled by a control unit, the first brake device being fixed relative to the frame of the machine, and the second brake device being rigidly connected to the transverse heater. The device for fastening the package to the strip also contains a section of strip segments, which is controlled programmatically by the control unit.

The essence of the proposed solution is that the unwinding (transportation) of the strip is carried out using two braking devices, one of which is stationary

mounted on the frame of the machine, and the other is located on the transverse welding unit. These brake devices operate in antiphase. Braking in braking devices is provided, for example, by means of pneumatic cylinders. The distance between the two attached bags is the same and is determined by the magnitude of the stroke of the heaters. The attachment of the package to the strip occurs simultaneously with the welding of the upper seam of the package, therefore, in the inventive device, the function of attaching packages of products to the strip does not lead to an increase in the manufacturing time of the package. The cycle of manufacturing the bag and attaching it to the strip does not increase and is equal to the cycle of manufacturing the bag without attaching it to the strip. The speed of attaching the bag to the strip is determined by the operation of the packaging module and does not decrease when the function of gluing the bag to the strip is introduced.

A packaging machine with a device for fastening packages to a strip is shown in the drawing and includes the following blocks and modules: control unit pos. 1, dosing module pos. 2 located above the packaging module pos. 3. The packaging module pos. 3 consists of a frame pos. 4, on which the film unwinding mechanism pos. 5, the package forming mechanism pos. 6, transverse and longitudinal welding units pos. 7 and 8, respectively, are fixed. On the frame of pos. 4, a device for fastening packages to the strip is installed, which includes a strip unwinding mechanism consisting of a roll with a strip of pos. 9, a brake drum of pos. 10, through which a brake band of pos. 11 is thrown, one end of which is fixed to the frame of pos .4, and the second on the spring lever pos.12. The strip unwinding unit also includes guide rollers pos. 13 and 14, the first brake device pos. 15, fixedly mounted on the frame pos. 4 and the second brake device pos. 16, rigidly connected to the lower heater pos. 17, which is part of the transverse welding unit. The transverse weld assembly includes three more independent heaters: the lower pos. 18 and the two upper poses 19, 20. The device for fastening packages to the strip also contains a strip section pos. 21 assembly.

Filling and packaging machine works as follows:

Before starting work, a bulk product is loaded into the dosing module pos.2, which must be dosed and packaged. In the control unit pos. 1, information is entered on the dose size of the bulk product that needs to be packaged in a packet, on the required accuracy of the dose set and on the number of packets that must be attached to a strip of a certain length. When you turn on the machine, the bulk product enters the metering module pos.2, which forms the dose set by weight and feeds it to the packaging module pos.3.

Simultaneously with the set dose of the product, the film unwinding mechanism pos.5 delivers the film to the packet forming mechanism pos.6, which forms a sleeve from the film. Site longitudinal welding pos.8, mounted with the possibility of movement in horizontal

plane welds the vertical seam of the package. Using the transverse welding unit pos.7, which includes 4 independent heaters pos.17, 18, 19, 20, installed with the possibility of movement in the horizontal plane, welding of the lower and upper seams of the package. The package is cut using a knife located in the transverse welding unit between the upper and lower heaters (not shown in the drawing).

The device for fastening the package to the strip works as follows:

A roll with a strip of pos. 9 is installed in the unwinding unit, and the strip passes under the lever of pos. 12, guide rollers of pos. 13, 14, brake devices pos. 15, 16 and between the upper pos. 19 and lower pos. 17 heaters. When the heaters begin to converge to heat seal the bag, the brake device pos.16 clamps the strip and pulls it along (the brake device pos.15 is released at this time). The strip is unwound from a roll. When the heaters of the transverse welding unit are closed, the lower seam of the film sleeve and the upper seam of the product bag are welded. At the same time, a strip of product is welded to the upper seam, as strip and seam are in the same zone. A cutting knife separates the product bag from the film sleeve. As the strip passes under the cutting knife, it remains intact. Then the heaters begin to diverge. At this time, the brake device pos.16 is released, and the brake device pos.15 is clamped. Under the weight of the package with the product, the strip extends by the amount of stroke of the heaters. Thus, due to the combination of clamping / releasing the brake devices pos. 15 and 16, it is possible to unwind the strip and weld onto it packages of the product with a strictly fixed step, determined by the progress of the heaters of the transverse weld assembly. Clamping and releasing the brake devices is provided, for example, by means of pneumatic cylinders (not shown in the drawing) controlled by the control unit.

Under the lower heater pos.17 there is a unit of strip segments pos.21. It is controlled programmatically by the control unit and is connected to the packaging module (the countdown is related to the number of convergence / divergence cycles of the heaters). At the command of the control unit, the knife cuts the strip segments (for example, a pneumatic cylinder) and cuts the strip.

Braking a roll with a strip is as follows. On the unwinding shaft (not shown in the drawing), a brake drum pos. 10 is fixed. The brake band pos. 11 is thrown over the drum. At one end, it is fixed to the frame, pos. 4, and at the other end, to the spring-loaded lever, pos. 12. The strip of rolls bends around the axis of the lever pos.12 from the bottom. When the end of the strip is pulled, the lever pos. 12 rises, while the tension of the brake band on the brake drum weakens, and the drum starts to spin. As soon as the tension of the strip decreases, the lever is lowered and the brake band brakes the drum with the unwinding shaft.

The proposed technical solution allows to simplify the design of the device for fastening the bag to the strip of the packaging machine due to the different principle of pulling the strip (under the weight of the bag plus the combination of clamping / releasing brake devices) and combining the attachment point of the bag to the strip with the transverse welding unit, while forming the strip with a given number of food packages.

Sources of information taken into account during the examination

1. Patent of the Russian Federation No. 2314236 B65V 9/20. Published on 02.27.2005

2. Application of the Russian Federation No. 96118115 B65V 9/20. Published on 02.27.2005

Claims (2)

1. Filling and packaging machine with a device for fastening packages to a strip, consisting of a dosing module, a frame on which a control unit is installed, a packaging module, which is a film unwinding mechanism and a package forming mechanism, which includes longitudinal and transverse welding units, a fastening device packages to the strip, including the strip unwinding unit and the package mounting unit to the strip, characterized in that the package mounting unit to the alignment strip with the transverse welding unit, and in the strip unwinding unit, rustling two guide rollers and two brakes controlled by the control unit, the first braking device is stationary relative to the machine frame, and the second braking device is rigidly connected to the transverse welding unit, which includes four independent heating elements. 2. Filling and packaging machine with a device for fastening packages to a strip according to claim 1, characterized in that a unit for cutting segments is additionally introduced into the device for fastening packages to a strip;