BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy...

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06/04/2017 1 © BDF INDUSTRIES SpA - Reproduction and distribution not allowed 06/04/2017 1 © BDF INDUSTRIES SpA - Reproduction and distribution not allowed BDF INDUSTRIES GLASSMAN SOUTH AMERICA . GOB DELIVERY SYSTEM EQUIPO DE ENTREGA GOTAS Vitaliano Gregori - Regional Sales Manager / Gerente Regional de Ventas

Transcript of BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy...

Page 1: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

06/04/2017 1 © BDF INDUSTRIES SpA - Reproduction and distribution not allowed 06/04/2017 1 © BDF INDUSTRIES SpA - Reproduction and distribution not allowed

BDF INDUSTRIES GLASSMAN SOUTH AMERICA

.

GOB DELIVERY SYSTEM

EQUIPO DE ENTREGA GOTAS Vitaliano Gregori - Regional Sales Manager / Gerente Regional de Ventas

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The reason of improvements

La razón de las mejoras

As most of the glass makers know, gob

forming and its delivery of glass into the

blank mould is one of the most critical

part of the process, especially with

advances forming processes.

With a focus on this last path of the gob,

we start to analyze the well known “Easy

Aligning System” (EAS), which already

introduced significant advantages

against the old traditional system.

The EAS has been dynamically

analyzed by Visual Nastran

modelization.

Como la mayoría de los vidrieros bien

saben, la formación y la entrega de las

gotas son unos de los momentos más

críticos del proceso de formado de los

envases, especialmente con los

procesos de formación mas avanzados.

Con un enfoque en este último camino

de la gota, comenzamos a analizar el ya

conocido equipo de entrega tipo “Easy

Aligning” (E.A.S.), que ya introdujo

importantes ventajas en relación a el

sistema tradicional.

El E.A.S. ha sido analizado

dinámicamente por medio de la

modelización de Visual Nastran.

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Traditional delivery analysis: profiles and jumps

Análisis de entrega tradicional: perfiles y saltos

3 cases have been considered

1.1” jump between scoop-trough with

correct alignment

2.1” jump between scoop-trough with

incorrect alignment (0,5°)

3.½” jump between scoop-trough with

correct alignment

Se han considerado 3 casos

1.Salto de 1” entre el vaciador y la

canalas recta con una alineación

correcta

2.Salto de 1” entre el vaciador y la

canalas recta con una alineación no

correcta (0,5°)

3.Salto de ½” entre el vaciador y la

canalas recta con una alineación

correcta

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Cases 1 & 2

A quite strong disturbance in terms of gob

speed at the point A, B and C

Additionally the disturbance at B, is

highly influenced by the height of free-fall

and error of alignment

Casos 1 & 2

Una alteración bastante fuerte en

términos de velocidad de la gota en el

punto A, B y C

Además, la perturbación en B está

altamente influenciada por la altura de

caída libre y el error de alineación

A B

C

A. Speed disturbance on scoop Alteración de velocidad en el vaciador

B. Speed disturbance on trough contact Alteración de velocidad al contacto con la canala recta

C. Speed disturbance on deflector entrance Alteración de velocidad en el ingreso de la canala curva

Free fall / Caida libre Scoop / Vaciador

Trough /

Canala

recta

Deflector /

canala

curva

Jump / Salto

Traditional delivery analysis: profiles and jumps

Análisis de entrega tradicional: perfiles y saltos

Page 5: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Case 3

A strong disturbances on the gob speed

at the transit points A and C .

The analysis shown that for case 3

disturbance B (between scoop and

trough) disappears.

Caso 3

Una fuerte perturbación de la velocidad

de la gota en los puntos de tránsito A y C.

El análisis demostró que para el caso 3

la perturbación B (entre vaciador y

canala recta) desaparece

A

C

Free fall / Caida libre

Scoop / Vaciador

Throat / Canala recta

Deflector / canala curva

Jump /

Salto

Traditional delivery analysis: profiles and jumps

Análisis de entrega tradicional: perfiles y saltos

A. Speed disturbance on scoop Alteración de velocidad en el vaciador

C. Speed disturbance on deflector entrance Alteración de velocidad en el ingreso de la canala curva

Page 6: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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In order to complete the analysis, beside

the Visual Nastran simulation, we

carried out also a theoretical analysis of

the gravity and acceleration effects.

Con el fin de completar el análisis, al

lado de la simulación Visual Nastran, se

realizó también un análisis teórico de

los efectos de la gravedad y

aceleración.

6

Traditional delivery analysis: profiles and jumps

Análisis de entrega tradicional: perfiles y saltos

0

1

2

3

4

5

6

7

8

0 0.2 0.4 0.6 0.8 1 1.2

THEORETICAL GOB SPEED VARIATION

VARIACION DE VELOCIDAD TEORICA DE LA GOTA

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1. The gob speed is mainly influenced

by the scoop and deflector profiles.

2. The jump scoop > trough, the

entrance into the deflector, and

relevant alignment error are the main

causes of gob energy losses.

Traditional delivery analysis: profiles and jumps

Análisis de entrega tradicional: perfiles y saltos

1. La velocidad de la gota está

principalmente influenciada por los

perfiles del vaciador y de la canala

curva.

2. Las causas principales de

disminución de la energía de la gota

son el salto vaciador – canala recta,

la entrada en la canala curva y los

errores de alineacion.

0

1

2

3

4

5

6

7

8

0 0.2 0.4 0.6 0.8 1 1.2

Throat/ C.recta

Deflector / C. curva

Scoop / Vaciador

THEORETICAL GOB SPEED VARIATION

VARIACION DE VELOCIDAD TEORICA DE LA GOTA

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3. The delivery angle influences the total

energy of the gob. Higher is the

angle, lower is the energy losses

caused by friction.

Traditional delivery analysis: profiles and jumps

Análisis de entrega tradicional: perfiles y saltos

3. El ángulo de entrega influye en la

energía total de la gota. Mayor es el

ángulo, menor es la pérdida de

energía causada por la fricción.

THEORETICAL GOB SPEED VARIATION

VARIACION DE VELOCIDAD TEORICA DE LA GOTA

0

1

2

3

4

5

6

7

8

0 0.2 0.4 0.6 0.8 1 1.2

Throat/ C.recta

Deflector / C. curva

Scoop / Vaciador

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4. By changing from 24° trough sloping

angle (BDF standard) to 30° we can

reduce the transit time of about 10%,

with consequent reduction of thermal

effect on the delivery system and

then on gob deformation.

0

1

2

3

4

5

6

7

8

0 0.2 0.4 0.6 0.8 1 1.2

Throat/ C.recta

Deflector / C. curva

Scoop / Vaciador

4. Al cambiar de 24° (BDF estándar)

hacia 30° el ángulo de inclinación de

la canala recta se puede reducir el

tiempo de tránsito de

aproximadamente un 10%, con la

consiguiente reducción del efecto

térmico en el equipo de entrega y de

consecuencia en la deformación de

la gota.

THEORETICAL GOB SPEED VARIATION

VARIACION DE VELOCIDAD TEORICA DE LA GOTA

Traditional delivery analysis: profiles and jumps

Análisis de entrega tradicional: perfiles y saltos

Page 10: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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With this important result we

developed 2 innovations

on the gob delivery systems:

Consequent development on the delivery equipment

Consecuencia de desarrollo del equipo de entrega

Con este importante resultado,

hemos desarrollado dos innovaciones

para el equipo de entrega de gotas:

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1. New Multi Direct Drive servo Gob

Distributor mechanism for a

prerfect control of aligment

between each scoop and trough

2. New Trough Holder Constant Angle

design with max jump of ½”

1. Nuevo servo mecanismo

distribuidor de gotas Multi Direct

Drive para asegurar el control

perfecto de la alineación de cada

uno de los vaciadores y las

canalas rectas.

2. Nuevo diseño Holder Constant

Angle del soporte de las canalas

para presentar un salto máximo

de ½”.

Consequent development on the delivery equipment

Consecuencia de desarrollo del equipo de entrega

Page 12: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Multi Direct Drive servo gob distributor mechanism

Servo mecanismo distribuidor de gotas Multi Direct Drive

Available for

DG 4”3/8

TG 3” - 4”3/8

QG 3”

Page 13: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Multi Direct Drive servo gob distributor mechanism

Servo mecanismo distribuidor de gotas Multi Direct Drive

Main Features

Motion control with independent

brushless motors for each scoop;

Direct drive system with pinion-rack

for each scoop;

Pinions, racks and guides all in oil

bath (scoop holder too).

Características principales

Control de movimiento con motores

sin escobillas, independientes para

cada cavidad;

Sistema de accionamiento directo

con piñón-cremallera para cada

cavidad;

Piñones, cremalleras y guías todo en

baño de aceite (as’ como el soporte

vaciadores).

Page 14: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Max. Speed / Velocidad maxima 240 cuts/min – cortes/min

Min. Motion Time / Minimo tiempo de desplazamiento 100 ms

Min. Waiting Time / Minimo tiempo de espera 150 ms

Max. Jump / Salto maximo 64°

Main Features / Características principales

Multi Direct Drive servo gob distributor mechanism

Servo mecanismo distribuidor de gotas Multi Direct Drive

Page 15: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Benefits

High mechanical rigidity and low

inertia for high performances;

Very low vibrations at high speed;

High dynamic response;

Very low energy consumption.

Ventajas

Alta rigidez mecánica y baja inercia

para un alto rendimiento;

Muy bajas vibraciones a alta

velocidad;

Elevada respuesta dinámica;

Muy bajo consumo de energía.

Multi Direct Drive servo gob distributor mechanism

Servo mecanismo distribuidor de gotas Multi Direct Drive

Page 16: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Constant Angle delivery system

Equipo de entrega Constant Angle

Main Features

Throat and deflector support design

with spider support for a correct

throat/deflector alignment during the

delivery adjustment;

On-top rigidity easy adjustment

Adjuster with anti-backlash design.

Características principales

Soporte de canala recta y canal curva

con diseño de “araña” para una

correcta alineación canala / deflector

durante el ajuste de la entrega;

Fácil ajuste de la rigidez de la parte

superior;

Ajustador con diseño anti-

contragolpe.

Page 17: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Benefits

30°constant angle for all the troughs;

Constant alignment between trough

and deflector during the deflector

adjustment;

Precise vertical alignment of the

deflector center-line with the blank

mould holder.

Ventajas

Angulo constante de 30° para todas

las canalas rectas;

Alineación constante entre canalas

rectas y curvas durante el proceso de

arreglo de la canala curva;

Precisa alineación vertical de la línea

del centro de la canala curva en

relación al molde bombillo.

Constant Angle delivery system

Equipo de entrega Constant Angle

Page 18: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Benefits

Better gob delivery between trough

and deflector;

Uniform and constant gob loading for

all sections (12) and cavities (4);

New deflector’s profile with longer

trough side.

Ventajas

Mejor entrega de gotas entre canalas

rectas y curvas;

Uniforme y constante carga de las

gotas para todas las secciones (12) y

cavidades (4);

Nuevo perfil de canala curva con

lado canala recta más largo.

Constant Angle delivery system

Equipo de entrega Constant Angle

Page 19: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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Softer centrifugal force variation => less gob deformation

Variación de la fuerza centrifuga mas suave => menor deformación de la gota

NUEVO PERFIL DE

CANALA CURVA

PERFIL TRADICIONAL

DE CANALA CURVA

MENOR IMPACTO

VARIACION SUAVE

FUERZA CENTRIFUGA DEL

PERFIL A NUEVO DISEÑO

VARIACIÓN DEL LARGO

Constant Angle delivery system

Equipo de entrega Constant Angle

Page 20: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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To summarize, the new scoops and

deflectors design has been developed

in accordance to the following

specifications:

1. Minimum absorption of kinetic

force during the entrance;

2. Reduction of the centrifugal force

generated by the profile;

En resumen, los nuevos diseños de

vaciadores y canalas curvas han sido

desarrollados según las

especificaciones siguientes:

1. Mínima absorción de la fuerza

cinética durante la entrada de la

gota;

2. Reducción de la fuerza centrifuga

producida por el perfil;

Constant Angle delivery system

Equipo de entrega Constant Angle

Page 21: BDF INDUSTRIES - Glassman Events · energy of the gob. Higher is the angle, lower is the energy losses caused by friction. Traditional delivery analysis: profiles and jumps Análisis

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3. Progressive reduction of centrifugal

force into the deflector in order to

keep the contact gob/deflector as

better as possible

4. Extension of the deflector to the

trough in order to allow a better

control of the curve and relevant

centrifugal force.

3. Reducción progresiva de la fuerza

centrifuga en la canala curva de

manera de lograr un contacto gota /

canala curva lo mejor posible;

4. Extensión de la canala curva hacia la

canala recta para lograr un mejor

control sea de la curva así como de

la fuerza centrifuga.

Constant Angle delivery system

Equipo de entrega Constant Angle

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