Apparatus and method for treating plastic preforms with integrated preform feed

Patent metadata

Field	Value
Publication number	US-11376780-B2
Application number	US-202017106426-A
Country	US
Kind code	B2
Filing date	Nov 30, 2020
Priority date	Mar 10, 2020
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

Apparatus (1) for treating plastic preforms (10) with a preform sorting device (2) comprising a sorting device (3) and a damming device (5) which transports the plastic preforms (10) along a first rectilinear transport path (T1), wherein the sorting device (3) is suitable and intended to bring the plastic preforms (10) into a predetermined orientation and the damming device (5) is suitable and intended to feed the plastic preforms (10) in an ordered manner to a heating device (12) arranged downstream of the preform sorting device (2), which heats the plastic preforms (10) to a temperature necessary for blow moulding, wherein the heating device (12) transports the plastic preforms (10) along a substantially second rectilinear transport path (T2) and a plurality of stationary arranged heating elements (14) are arranged along the second rectilinear transport path (T2). According to the invention, the preforms sorting device (2) and the heating device (12) are arranged on a common carrier (9).

First claim

The invention claimed is:

1. Apparatus ( 1 ) for treating plastic preforms ( 10 ) with a preform sorting device ( 2 ) comprising a sorting device ( 3 ) and a damming device ( 5 ) which transports the plastic preforms ( 10 ) along a first rectilinear transport path (T 1 ), wherein the sorting device ( 3 ) is suitable and intended to bring the plastic preforms ( 10 ) into a predetermined orientation and the damming device ( 5 ) is suitable and intended to feed the plastic preforms ( 10 ) in an ordered manner to a heating device ( 12 ) arranged downstream of the preform sorting device ( 2 ), which heats the plastic preforms ( 10 ) to a temperature necessary for blow moulding, wherein the heating device ( 12 ) transports the plastic preforms ( 10 ) along a substantially second rectilinear transport path (T 2 ) and a plurality of heating elements ( 14 ) arranged in a stationary manner are arranged along the second rectilinear transport path (T 2 ),
characterised in that
the preform sorting device ( 2 ) and the heating device ( 12 ) are arranged on a common carrier ( 9 ).

2. Apparatus ( 1 ) according to claim 1 ,
characterised in that
the plastic preforms ( 10 ) are fed from the preform sorting device ( 2 ) to the heating device ( 12 ) and in particular to a transport star ( 16 ) arranged between the preform sorting device ( 2 ) and the heating device ( 12 ) in a horizontal direction (h).

3. Apparatus ( 1 ) according to claim 1 ,
characterised in that
in the sorting device ( 3 ) and/or the damming device ( 5 ) at least one air stressing device is provided, which is suitable and intended to transport the plastic preforms ( 10 ) by means of an air flow.

4. Apparatus ( 1 ) according to claim 1 ,
characterised in that
the damming device ( 5 ) has two driven circumferential conveyor belts ( 30 ) which are arranged parallel to each other and which are suitable and intended for transporting the plastic preforms ( 10 ).

5. Apparatus ( 1 ) according to claim 1 ,
characterised in that
the damming device ( 5 ) has two rotatable rollers ( 7 ) arranged parallel to each other, which are suitable and intended for transporting the plastic preforms ( 10 ).

6. Apparatus ( 1 ) according to claim 1 ,
characterised in that
both the damming device ( 5 ) and the sorting device ( 3 ) have two rotatable rollers ( 6 , 7 ) arranged parallel to one another, which are suitable and intended for transporting the plastic preforms ( 10 ), the rollers ( 6 ) of the sorting device ( 3 ) and the rollers ( 7 ) of the damming device ( 5 ) being directly adjacent to one another.

7. Apparatus ( 1 ) according to claim 1 ,
characterised in that
the preform sorting device ( 2 ) and the heating device ( 12 ) are arranged in a common housing ( 8 ).

8. Apparatus ( 1 ) according to claim 1 ,
characterised in that
downstream of the heating device ( 12 ), a blow moulding machine ( 20 ) is arranged which converts the plastic preforms ( 10 ) into plastic containers after heating in the heating device ( 12 ).

9. Apparatus ( 1 ) for treating plastic preforms ( 10 ) with a preform sorting device ( 2 ) comprising a sorting device ( 3 ) and a damming device ( 5 ) which transport the plastic preforms ( 10 ) along a first rectilinear transport path (T 1 ), wherein the sorting device ( 3 ) is suitable and intended to bring the plastic preforms ( 10 ) into a predetermined orientation and the damming device ( 5 ) is suitable and intended to feed the plastic preforms ( 10 ) in an ordered manner to a heating device ( 12 ) arranged downstream of the preform sorting device ( 2 ), which heats the plastic preforms ( 10 ) to a temperature necessary for blow moulding, wherein the heating device ( 12 ) transports the plastic preforms ( 10 ) along a substantially rectilinear straight transport path (T 2 ) and a plurality of heating elements ( 14 ) arranged in a stationary manner are arranged along the second rectilinear transport path (T 2 ),
characterised in that
the preform sorting device ( 2 ) and the heating device ( 12 ) are arranged parallel to each other.

10. Apparatus ( 1 ) according to claim 9 ,
characterised in that
the plastic preforms ( 10 ) are fed from the preform sorting device ( 2 ) to the heating device ( 12 ) and in particular to a transport star ( 16 ) arranged between the preform sorting device ( 2 ) and the heating device ( 12 ) in a horizontal direction (h).

11. Apparatus ( 1 ) according to claim 9 ,
characterised in that
in the sorting device ( 3 ) and/or the damming device ( 5 ) at least one air stressing device is provided, which is suitable and intended to transport the plastic preforms ( 10 ) by means of an air flow.

12. Apparatus ( 1 ) according to claim 9 ,
characterised in that
the damming device ( 5 ) has two driven circumferential conveyor belts ( 30 ) which are arranged parallel to each other and which are suitable and intended for transporting the plastic preforms ( 10 ).

13. Apparatus ( 1 ) according to claim 9 ,
characterised in that
the damming device ( 5 ) has two rotatable rollers ( 7 ) arranged parallel to each other, which are suitable and intended for transporting the plastic preforms ( 10 ).

14. Apparatus ( 1 ) according to claim 9 ,
characterised in that
both the damming device ( 5 ) and the sorting device ( 3 ) have two rotatable rollers ( 6 , 7 ) arranged parallel to one another, which are suitable and intended for transporting the plastic preforms ( 10 ), the rollers ( 6 ) of the sorting device ( 3 ) and the rollers ( 7 ) of the damming device ( 5 ) being directly adjacent to one another.

15. Apparatus ( 1 ) according to claim 9 ,
characterised in that
the preform sorting device ( 2 ) and the heating device ( 12 ) are arranged in a common housing ( 8 ).

16. Apparatus ( 1 ) according to claim 9 ,
characterised in that
downstream of the heating device ( 12 ), a blow moulding machine ( 20 ) is arranged which converts the plastic preforms ( 10 ) into plastic containers after heating in the heating device ( 12 ).

17. A method for treating plastic preforms ( 10 ) with a preform sorting device ( 2 ) comprising a sorting device ( 3 ) and a damming device ( 5 ) which transport the plastic preforms ( 10 ) in each case along a first rectilinear transport path (T 1 ), wherein the sorting device ( 3 ) is suitable and intended to bring the plastic preforms ( 10 ) into a predetermined orientation and the damming device ( 5 ) is suitable and intended to feed the plastic preforms ( 10 ) in an ordered manner to a heating device ( 12 ) arranged downstream of the preform sorting device ( 2 ), which heats the plastic preforms ( 10 ) to a temperature necessary for blow moulding, wherein the heating device ( 12 ) transports the plastic preforms ( 10 ) along a substantially second rectilinear transport path (T 2 ) and a plurality of heating elements ( 14 ) arranged in a stationary manner are arranged along the second rectilinear transport path (T 2 ),
characterised in that
the preform sorting device ( 2 ) and the heating device ( 12 ) are arranged on a common carrier ( 9 ).

Assignees

• Krones Ag

Inventors

• Geltinger Florian

Classifications

• B29C49/42093

  Transporting apparatus, e.g. slides, wheels or conveyors · CPC title

• B29C49/42101

  Conveyors, e.g. flat conveyor or clamping between two bands · CPC title

• B29C49/46 Primary

  characterised by using particular environment or blow fluids other than air · CPC title

• B29C49/6409

  Thermal conditioning of preforms (B29C49/68 takes precedence) · CPC title

• B29C49/42057

  Aligning disorderly arranged preforms, e.g. delivered disorderly · CPC title