Research of the process of automatic gripping of air-penetrating flexible containers with vacuum during sorting of free-flowing products

Makarov, A. D.; Serdobintsev, Yu. P.; Mushkin, O. V.; Lapikov, M. A.

doi:10.1109/icieam.2017.8076191

Cited by 5 publications

(4 citation statements)

References 1 publication

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“…Proper circulation and rapid pressure gradient patterns around the air gap indicate vacuum generation inside the cup. Unstable flow behavior appears on the workpiece surface of Figure 9 d. The overlapping flow at the nozzle exit of the asymmetrical structure can usually be solved by the optimum suction pad space or by modifying it to the appropriate cup specifications [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

“…In general, with a body diameter of up to 100 mm at 258 L/min air consumption, commercial vortex modules can provide a grip force of 44 N. The Bernoulli module provides a grip force up to 14 N for a maximum outer diameter of 150 mm at 291 L/min air consumption instead of providing smooth gripping operation [ 12 ]. As the maximum grip force that can be achieved in a non-contact environment is limited due to the availability of only one module specification, researchers have focused on finding the optimal shape design that allows more control over the flow behavior inside the module [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Their results significantly improved the air head’s internal structure and created an efficient vacuum on the workpiece.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Non-Contact Grip Force and Swirl Stability by a Combined Venturi–Vortex Air Head

2021

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A combination of the venturi module and the vortex cup was proposed to solve vortex instability and to enhance grip capacity. Mounting a venturi suction pad inside the vortex cup improved vacuum generation efficiency. When the vortex cup properly maintained the non-contact air gap and generated an equivalent vacuum to achieve a sealing effect around the open gap of the suction pad, the combined head improved grip capacity and stabilized the non-contact environment. Furthermore, the flow patterns around the venturi chamber and the swirl inside the vortex cup were analyzed based on the design elements of each module. In a module that integrated some of the venturi’s features internally, increased air consumption of the vortex cup was required than that of the venturi. However, it supported a wide range of non-contact grips. The coupled model effectively protected the vacuum suction features of the venturi suction pad in all non-contact environments in that range.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Non-Contact Grip Force and Swirl Stability by a Combined Venturi–Vortex Air Head

2021

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“…All samples had vacuum chambers with conical cross-section and working diameter of 2 mm (outer diameter of the chamber). Earlier research was performed using vacuum suction cups with diameters of 30, 40 and 50 mm, the results are described in [10]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Use of additive technologies to increase effectiveness of design and use of a vacuum gripping devices for flexible containers

2018

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In an effort to increase efficiency of the process of handling of an air-penetrating flexible container during its' filling with free-flowing materials a devise has been designed for automatic gripping, opening, holding and sealing of flexible container, containing vacuum gripping devise, pneumatic drive for its' transfer and a control system based on programmable logical controller. Vacuum gripping device can be produced using the method of additive technologies. It has a modular structure, while each module contains random or structured vacuum chambers located on work surface area, connected to a system of internally branched channels with the source of vacuum. Large number of small vacuum chambers in place allows to minimize leakage of air though pores and openings on the surface of the mouth of weaved flexible container, which increases reliability of holding and reduces energy consumption during the process of handling air-penetrating packaging during its' filling.

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“…Its images were processed by a Raspberry Pi 2 microcomputer and were transferred to an MSI Gl62m 7rex 3 laptop using the special software. The camera lens was focused on the working area in which two vacuum gripping devices (4 and 5) and the flexible container (6) on the platform (7) were located [31].…”

Section: Methodsmentioning

confidence: 99%

The Quality Control of the Automatic Manipulating Process of a Flexible Container When Bulk Materials are Packaged

et al. 2019

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The quality control of a flexible container (FC) gripped and held by a gripping device during the entire cycle of packaging is an important task in the packaging process of bulk materials in a soft package. Noncontact optical methods of control have been developed and researched for the diagnostics of the automatic manipulating process of a flexible container when bulk materials are packaged in a soft package. Diagnostics of the FC gripping and opening accuracy was carried out herein with the help of machine vision. Processing of the image obtained when the neck of the FC was photographed was carried out by a neural network algorithm, which was made according to a scheme of a perceptron. An automated diagnostics system of the FC gripping and opening accuracy was developed in terms of the obtained algorithm. A control technique based on the algorithm of comparison with a reference was used to reveal the FC gripping and opening defects. This technique consists of preliminary processing of the image obtained from the camera and automatic search for deviations in FC gripping and opening. As a result, a report of defects in the process of FC gripping and opening was obtained.

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Research of the process of automatic gripping of air-penetrating flexible containers with vacuum during sorting of free-flowing products

Cited by 5 publications

References 1 publication

Enhanced Non-Contact Grip Force and Swirl Stability by a Combined Venturi–Vortex Air Head

Enhanced Non-Contact Grip Force and Swirl Stability by a Combined Venturi–Vortex Air Head

Use of additive technologies to increase effectiveness of design and use of a vacuum gripping devices for flexible containers

The Quality Control of the Automatic Manipulating Process of a Flexible Container When Bulk Materials are Packaged

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