Electromechanical roller conveyor model with enhanced consideration of roller-belt interaction

2012 ◽  
Author(s):  
D. Melot de Beauregard ◽  
A. Conradi ◽  
B. Benthaus ◽  
L. Golebiowski
Keyword(s):  
Roller Conveyor

Technology for the hot rolling of strip after modernization of the laminar-cooling unit on the roller conveyor of the 2500 hot-rolling mill

Metallurgist ◽  
2007 ◽  
Vol 51 (1-2) ◽  
pp. 41-45 ◽  
Author(s):  
S. V. Denisov ◽  
S. N. Gorshkov ◽  
A. V. Shargunov ◽  
G. N. Posazhennikov ◽  
V. V. Galkin
Keyword(s):  
Hot Rolling ◽  
Rolling Mill ◽  
Laminar Cooling ◽  
Roller Conveyor ◽  
Cooling Unit ◽  
Hot Rolling Mill

scholarly journals Analisis Perbaikan Proses Shipping Kursi Mobil Dalam Upaya Mengurangi Frekuensi Terjadinya Delay Delivery

2019 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
M Yani Syafei ◽  
Andi Muhamad Yusuf
Keyword(s):  
Customer Satisfaction ◽  
Production Process ◽  
Six Sigma ◽  
Automotive Sector ◽  
Roller Conveyor ◽  
Car Seats ◽  
Temporary Storage ◽  
Moving Base ◽  
A Company

PT. FSI is a company engaged in the automotive sector. Increased demand and efforts to meet customer satisfaction, then encouraging companies to continue to make various improvements including the shipping department, which is to facilitate the delivery of products to customers. One of the causes of the delay in the delivery of products to customers (delay delivery) is that there is a problem in the pre-delivery process, namely the storage conveyor machine. A storage conveyor machine is a machine that connects from the results of the production process to the temporary storage of goods which are then put into trucks to be sent to consumers.<br />The objective achieved in this study was to analyze the causes of the delay delivery in the process of shipping car seats on conveyor storage machines and make improvements to reduce the jammed base pallet frequency on the storage conveyor machine using the six sigma method. Based on the results of the research and analysis that have been carried out, it turns out that the case of the jammed base pallet on the conveyor storage machine is the cause of delay delivery to the customer and then make improvement to overcome or reduce the frequency of jammed base pallet problems on the storage conveyor machine by adding sponges to the shaft roller conveyor. The addition of sponge rolls is intended to increase power when moving base pallet between stations.

Dynamic Simulation and Control of a Roller Conveyor

2019 ◽  
Author(s):  
Bradford Range
Keyword(s):  
Material Handling ◽  
Dynamic Control ◽  
Control Unit ◽  
Optimal Number ◽  
Sensitivity Analyses ◽  
Roller Conveyor ◽  
Loop Control ◽  
Simulation And Optimization ◽  
Control Schemes ◽  
Loading System

Abstract Passive roller conveyors are frequently used in material handling applications to transport objects of various sizes and shapes. Passive systems cannot control unit flow, leading to queues and system jams. In this paper we analyze the performance of a gravity-driven roller conveyor with brakes selectively installed on rollers to control package flow in the load lanes of a transportation hub. Dynamics of the rollers and kinematic interaction with boxes on the conveyor were derived and fully modeled in MATLAB to simulate accurate conveyor behavior. Sensitivity analyses were performed to evaluate the effect of friction, box mass, roller inertia, and other factors. Using heuristic data to define boundary conditions (box weight, size, and input frequency), several control cases were evaluated. Performance was defined by buffering efficiency of the conveyor, or how effectively the conveyor “kept pace” with a person moving boxes from the load conveyor onto a waiting truck. Several dynamic control cases were simulated. It was found that the optimal number of installed brakes is 30% of the total rollers on the conveyor. Even rudimentary brake control schemes (applying a simple duty-cycle on/off to roller brakes) had the potential to increase the conveyor buffer efficiency by 10% over baseline, with the potential for much greater benefits from more “intelligent” closed-loop control schemes. The simulation and optimization of the active roller conveyor gave insights into the behavior of their truck loading system and identified several ways to increase loading efficiency.

A New Roller Conveyor Driven by Linear Motor

2011 ◽  
Vol 201-203 ◽  
pp. 1517-1520 ◽  
Author(s):  
Hong Sheng Zhao ◽  
Yun Zhen Wu
Keyword(s):  
Friction Force ◽  
Simple Structure ◽  
Complex Structure ◽  
Linear Motor ◽  
Advanced Technology ◽  
Roller Conveyor ◽  
Technical Problems ◽  
Linear Motors ◽  
Three Phase ◽  
New Form

To solve technical problems of current roller conveyor, such as big volume, complex structure and heavy maintenance workload, a new roller conveyor has been researched by adopting advanced technology of three-phase A.C linear motor. It has no intermediate transmission units that exist in the conventional roller conveyor, and is a new form structure of the conveyor. The device consists mainly of rollers and linear motors. The roller serves as driving and load-bearing mechanism, and as the rotor of linear motor, too. In the process of operation, with rollers served as the carriers, the friction force between rollers and objects transmits the motion consummately to achieve the goal of transportation. This new conveyor can completely replace the current various types of roller conveyor with such features as simple structure, low failure rate and cost.

Shielding of the starting strip on the intermediate roller conveyor of a 2800/1700 mill

Metallurgist ◽  
1986 ◽  
Vol 30 (9) ◽  
pp. 334-335
Author(s):  
V. N. Khloponin ◽  
I. M. Khrebtov ◽  
V. S. Savchenko ◽  
S. M. Tikhonov ◽  
V. Ya. Tishkov ◽  
...  
Keyword(s):  
Roller Conveyor ◽  
Intermediate Roller

scholarly journals Modeling and calculation of the powered roller conveyor

2018 ◽  
Vol 393 ◽  
pp. 012037
Author(s):  
N Miloradović ◽  
R Vujanac ◽  
I Miletić
Keyword(s):  
Roller Conveyor

Efficacy of Various Sanitizers against Salmonella during Simulated Commercial Packing of Tomatoes

2014 ◽  
Vol 77 (11) ◽  
pp. 1868-1875 ◽  
Author(s):  
HAIQIANG WANG ◽  
ELLIOT T. RYSER
Keyword(s):  
Citric Acid ◽  
Membrane Filtration ◽  
Sodium Thiosulfate ◽  
Ammonium Citrate ◽  
Ferric Ammonium Citrate ◽  
Water Tank ◽  
Peroxyacetic Acid ◽  
Water Control ◽  
Roller Conveyor ◽  
Tank Water

Chemical sanitizers are usually added to dump tank water to minimize cross-contamination during tomato packing. However, the efficacy of sanitizers continues to be questioned. This study assessed the ability of six commonly used sanitizers (40 ppm of peroxyacetic acid, 40 ppm of mixed peracid, 40 ppm of available chlorine alone or acidified to pH 6.0 with citric acid or T-128, and electrolyzed water containing 40 ppm of available chlorine at pH 6.7) to reduce Salmonella on tomatoes, in wash water, and on equipment surfaces using a pilot-scale processing line. Red round tomatoes (11.3 kg) were dip inoculated to contain Salmonella at ~ 6 log CFU/g, air dried for 2 h, treated for 2 min in a 3.3-m-long dump tank and then dried on a roller conveyor, with sanitizer-free water serving as the control. Tomato and water samples were collected at 15-s intervals during washing with additional dump tank, water tank, and roller conveyor surface samples collected after washing. All samples were appropriately neutralized, diluted, and surface plated on Trypticase soy agar containing 0.6% yeast extract, 0.05% ferric ammonium citrate, and 0.03% sodium thiosulfate with or without membrane filtration to enumerate Salmonella. All six sanitizer treatments were more efficacious than the water control (P ≤ 0.05), with chlorine plus citric acid yielding the greatest Salmonella reduction on tomatoes (3.1 log CFU/g). After processing, all sanitizer wash solutions contained significantly lower (P ≤ 0.05) levels of Salmonella than the water control (3.0 log CFU/ml). The four chlorine-based sanitizer treatments yielded significantly lower Salmonella populations (P ≤ 0.05) in the wash solution compared with peroxyacetic acid and mixed peracid. After processing with sanitizers, Salmonella populations decreased to nondetectable levels (&lt; 0.2 log CFU/100 cm2) on the equipment surfaces.

scholarly journals Design optimization of a diesel engine connecting rod

2019 ◽  
Vol 6 (1) ◽  
pp. 24-40 ◽  
Author(s):  
Aisha Muhammad ◽  
Ibrahim Haruna Shanono
Keyword(s):  
Finite Element ◽  
Diesel Engine ◽  
Material Selection ◽  
Reduction Rate ◽  
Weight Optimization ◽  
Connecting Rod ◽  
Roller Conveyor ◽  
Engineering Structures ◽  
Ic Engine ◽  
Static And Dynamic Analysis

Rotary motion is generated from a crankshaft’s piston alternating motion using a connecting rod. The engine combustion gases and components motion of inertia exert pressures that induces compressive and tensile stress in the connecting rod respectively [1], [2]. Connecting rods fail due to its overloading, bearing failure, irregular adjustments of the bolts and faulty assembly or fatigue [3]. It is important for connecting rods to be able to withstand the complex high tensile loads that acts on them. As a result, numerous design technology, material selection, working and fatigue test of a connecting rod have been studied and presented [4]. Mechanical properties (such as hardness, tensile strength, rigidity and fatigue resistivity) of the materials used in the manufacture of a connecting rod need vehicles depends on the design of the connecting rod. Failure of connecting rod is attributed to the in availability of much strength needed to hold the load. This can be overcome with the life cycle extended by increasing the strength [5]. Finite element analysis of connecting rod have been conducted and presented by a lot of researchers. In [6], theoretical and FEA of an IC engine connecting rod was conducted. The result of the analysis obtained shows the causes of failure at the fillet of both ends due to the induced stress. In [7] static FEA for fatigue, deformation and weight optimization of a connecting rod using ANSYS workbench is carried out and presented. From the suggested design changes obtained from the weight optimization result, the failure result is further updated to achieve a better result. In a paper by Bansal, dynamic stress analysis was carried out on a single cylinder four stroke diesel engine connecting rod of Aluminum material using FEA. The optimization was also done under dynamic loading with the boundary conditions and inputs determined from the pressure-volume diagram and engine specification chart respectively are carried out with different meshing size for an accurate result. [8]. FEA is the commonly employed computational tool for testing and modifying engineering structures within certain design limit.  It involves diving in to small units known as ‘elements’ for static and dynamic analysis of simple to complex model under different design constraints. Further investigation can also be done to improve the design for optimal performance and lifespan with regards to design failure [9]. Many kinds of literature have worked on weight optimization. Gaikwad in his paper modifies a roller conveyor by performing weight optimization after carrying out static analysis on the roller conveyor [10] In another paper by [10] the weight of a roller conveyor was reduced thereby saving the materials under specific load constraints using finite element method. In this paper shape optimization with target weight reduction rate of 20 to 60% with an interval of 10 under a static loading of 100N. Further analysis for structural optimization is also done to determine a new optimized structure with new deformation and stress values respectively. The analysis is carried out in ANSYS static structural, mechanical solver with a tensile force of 100N acting on its larger end.

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