CA2058377A1 - Stretch wrappping apparatus - Google Patents
Stretch wrappping apparatusInfo
- Publication number
- CA2058377A1 CA2058377A1 CA 2058377 CA2058377A CA2058377A1 CA 2058377 A1 CA2058377 A1 CA 2058377A1 CA 2058377 CA2058377 CA 2058377 CA 2058377 A CA2058377 A CA 2058377A CA 2058377 A1 CA2058377 A1 CA 2058377A1
- Authority
- CA
- Canada
- Prior art keywords
- ring member
- carriage assembly
- load
- film
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Landscapes
- Basic Packing Technique (AREA)
Abstract
ABSTRACT
There is provided a stretch wrapping apparatus wherein a carriage assembly rotates about the loads of the package. The carriage assembly carries the film supply means and associated components and is driven by a linear drive motion along a ring member which can be of a non circular or non linear configuration.
There is provided a stretch wrapping apparatus wherein a carriage assembly rotates about the loads of the package. The carriage assembly carries the film supply means and associated components and is driven by a linear drive motion along a ring member which can be of a non circular or non linear configuration.
Description
~ 5sa3~7~7 The present invention relates to a stretch wrapping apparatus and more particularly, relates to a novel stretch wrapping apparatus wherein the film supply rotates about the load to be wrapped.
Stretch wrapping machines are known in the art and are widely used ~or packaging a number of articles ranging from individual containers packaged on a pallet to a series of loose articles. Generally, such means of packaging has been accepted as one of the most efficient ways to eliminate packaging material.
Generally, stretch wrapping machines have come in several different forms. A first type of machine has the film supply stationary while the load about which the film is to be wrapped is rotated. While this is advantageous in certain circumstances, when a heavy load is to be rotated, considerable energy is required and the time to wrap the load is substantially increased. It is also known in the art to have the load remain static with the film itself rotated about the articles to be wrapped. This requires a somewhat more complicated mechanical structure. It is also known in the art to combine various movements such as when the load may be moved in a vertical direction while the film rotates around the load in the horizontal plane.
It is also known in the art to have a film supply means which is attached to a frame which moves in a vertical direction while the frame is rotatable about the load.
Again, means for rotating the frame, with the inertia of the structure, would be substantial.
37~
It is an object of the present invention to provids a stretch wrapping machine which can wrap the load in a very efficient manner and can be adapted to different size loads.
Generally, according to one aspect of the present invention, there is provided a stretch wrapping apparatus comprising a frame, load receiving means interior of said frame, a ring member exterior of said load receiving means, means for moving said ring member in a vertical direction, a carriage assembly moveable about said ring, said carriage assembly including linear drive means for driving said carriage on said ring member, film supply means mounted on said carriage assembly, film dispensing means and film tensioning means being associated therewith.
In greater detail, the apparatus will include load receiving means upon which the load to be wrapped is placed.
These means may be any conventional and suitable conveyor means may be associated therewith for moving the load into the desired position.
The machine or apparatus will include a suitable frame structure as is conventional in the art. Normally, the frame structures are welded frame members forming a rectangular configuration.
A ring member is mounted within the frame structure and extends about the exterior of the load receiving area.
The ring member, contrary to conventional wrapping machines, may be of any desired configuration. Thus, in conventional machines, a substantially rectangular or circular configuration has been employed due to the drive mechanics involved. When the load has been odd shaped, the overall
Stretch wrapping machines are known in the art and are widely used ~or packaging a number of articles ranging from individual containers packaged on a pallet to a series of loose articles. Generally, such means of packaging has been accepted as one of the most efficient ways to eliminate packaging material.
Generally, stretch wrapping machines have come in several different forms. A first type of machine has the film supply stationary while the load about which the film is to be wrapped is rotated. While this is advantageous in certain circumstances, when a heavy load is to be rotated, considerable energy is required and the time to wrap the load is substantially increased. It is also known in the art to have the load remain static with the film itself rotated about the articles to be wrapped. This requires a somewhat more complicated mechanical structure. It is also known in the art to combine various movements such as when the load may be moved in a vertical direction while the film rotates around the load in the horizontal plane.
It is also known in the art to have a film supply means which is attached to a frame which moves in a vertical direction while the frame is rotatable about the load.
Again, means for rotating the frame, with the inertia of the structure, would be substantial.
37~
It is an object of the present invention to provids a stretch wrapping machine which can wrap the load in a very efficient manner and can be adapted to different size loads.
Generally, according to one aspect of the present invention, there is provided a stretch wrapping apparatus comprising a frame, load receiving means interior of said frame, a ring member exterior of said load receiving means, means for moving said ring member in a vertical direction, a carriage assembly moveable about said ring, said carriage assembly including linear drive means for driving said carriage on said ring member, film supply means mounted on said carriage assembly, film dispensing means and film tensioning means being associated therewith.
In greater detail, the apparatus will include load receiving means upon which the load to be wrapped is placed.
These means may be any conventional and suitable conveyor means may be associated therewith for moving the load into the desired position.
The machine or apparatus will include a suitable frame structure as is conventional in the art. Normally, the frame structures are welded frame members forming a rectangular configuration.
A ring member is mounted within the frame structure and extends about the exterior of the load receiving area.
The ring member, contrary to conventional wrapping machines, may be of any desired configuration. Thus, in conventional machines, a substantially rectangular or circular configuration has been employed due to the drive mechanics involved. When the load has been odd shaped, the overall
2~ 3~7 dimensions of the machine in all directions had to be increased. However, according to the present invention, the ring member may be of an oval or even a regular configuration to suite the particular load to be wrapped.
The apparatus includes means for moving the ring member in a vertical direction and to this end, suitable convention drives may be employed. The ring may have suitable mounting points to which is attached chains or other means which are associated with a drive motor either through a belt or other type of drive connection. If desired, ths apparatus can be designed whereby the ring member is replaceable using standard mounting points for movement of different types of ring members in a vertical direction.
A carriage assembly is moveable on the ring member and to this end, a linear drive motor is associated with the carriage assembly to drive the same along the path of the ring. Accordingly, an induction strip means would bs associated with the ring member and the carriage would be driven along the predetermined path according to the shape of the ring member.
The carriage sub-assembly will include film supply means mounted thereon (a roll of film) as well as suitable dispensing components. These components are well known in the art in many conventional arrangement and thus, there may be provided suitable kensioning rolls, feed rolls, cutting means, wiper means, etc. In addition, the apparatus may include suitable hold down means for the load to maintain the same in a stable position while the film is being wrapped about the load.
The apparatus includes means for moving the ring member in a vertical direction and to this end, suitable convention drives may be employed. The ring may have suitable mounting points to which is attached chains or other means which are associated with a drive motor either through a belt or other type of drive connection. If desired, ths apparatus can be designed whereby the ring member is replaceable using standard mounting points for movement of different types of ring members in a vertical direction.
A carriage assembly is moveable on the ring member and to this end, a linear drive motor is associated with the carriage assembly to drive the same along the path of the ring. Accordingly, an induction strip means would bs associated with the ring member and the carriage would be driven along the predetermined path according to the shape of the ring member.
The carriage sub-assembly will include film supply means mounted thereon (a roll of film) as well as suitable dispensing components. These components are well known in the art in many conventional arrangement and thus, there may be provided suitable kensioning rolls, feed rolls, cutting means, wiper means, etc. In addition, the apparatus may include suitable hold down means for the load to maintain the same in a stable position while the film is being wrapped about the load.
3~
Having thus generally described the invention, reference will be made to the accompanying drawings illustrating embodiments thereof, in which:
Figure 1 is a side elevational view of a stretch wrapping machine according to the present invention;
Figure 2 is an end elevational view thereof showing movement of the carriage assembly having film supply means;
and Figure 3 is a top plan view thereof.
Referring to the drawings in greater detail and by reference characters thereto, the stretch wrapping apparatus includes a load receiving area 10 having a load L which is to be wrapped. Load receiving area 10 includes lower frame members 14 upon which are mounted a plurality of rollers 12 to permit movement of the load L into and out of the load receiving area 10.
Vertical frame members 16 extend upwardly from the floor and are secured to upper frame members 18. The overall configuration of the stretch wrapping apparatus is rectangular.
A ring member 20, as may best be seen in Figure 3, has an overall oval configuration and has secured thereto cables 22 antrained about pulleys 24. The other end of the cables 22 are attached to counter weights 26. Mounted on upper frame member 18 is a drive motor 28. Drive motor 28 drives a drive wheel 30 by means of drive belt 32 to thereby raise and/or lower ringer member 20 as required.
A carriage assembly generally designated by reference numeral 34 is adapted to travel along ring member 20 following the outline thereof. Carriage assembly 34 includes a carriage frame 38 onto which are mounted support wheels 36 which ride along the upper surface of ring member 20. Mounted on the lower surface of ring member 20 is an induction strip which cooperates with a linear induction drive means 40 to drive the entire carriage assembly 34 are required along ring member 20.
Also mounted on carriage assembly 20 is a film supply 42. Film supply 42 is initially fed to a pre-10 stretched roll which is driven by a drive motor 46 having drive belt 48 associated therewith. Other stretching rolls 50 are provided in a conventional manner. Also associated with carriage assembly 20 are suitable cutting means for cutting the film as required. Mount~d on upper frame members 18 is a cylinder 56 which is adapted to drive a top platen into contact with the upper surface of load L to stabilize the same during the wrapping operation.
As will be appreciated ring member 20 can be of any desired configuration and indeed, it would be within the scope to change ring member 20 to have different configurations according to the load to be wrapped. As will also be noted, the carriage assembly 34 can thus be closer to the load L to be wrapped and does not have to travel the same distance as in a conventional wrapping machine.
It will be understood that the above described embodiment is for purposes of illustration only and that changes and modifications may be made thereto without departing from the spirit and scope of the invention.
Having thus generally described the invention, reference will be made to the accompanying drawings illustrating embodiments thereof, in which:
Figure 1 is a side elevational view of a stretch wrapping machine according to the present invention;
Figure 2 is an end elevational view thereof showing movement of the carriage assembly having film supply means;
and Figure 3 is a top plan view thereof.
Referring to the drawings in greater detail and by reference characters thereto, the stretch wrapping apparatus includes a load receiving area 10 having a load L which is to be wrapped. Load receiving area 10 includes lower frame members 14 upon which are mounted a plurality of rollers 12 to permit movement of the load L into and out of the load receiving area 10.
Vertical frame members 16 extend upwardly from the floor and are secured to upper frame members 18. The overall configuration of the stretch wrapping apparatus is rectangular.
A ring member 20, as may best be seen in Figure 3, has an overall oval configuration and has secured thereto cables 22 antrained about pulleys 24. The other end of the cables 22 are attached to counter weights 26. Mounted on upper frame member 18 is a drive motor 28. Drive motor 28 drives a drive wheel 30 by means of drive belt 32 to thereby raise and/or lower ringer member 20 as required.
A carriage assembly generally designated by reference numeral 34 is adapted to travel along ring member 20 following the outline thereof. Carriage assembly 34 includes a carriage frame 38 onto which are mounted support wheels 36 which ride along the upper surface of ring member 20. Mounted on the lower surface of ring member 20 is an induction strip which cooperates with a linear induction drive means 40 to drive the entire carriage assembly 34 are required along ring member 20.
Also mounted on carriage assembly 20 is a film supply 42. Film supply 42 is initially fed to a pre-10 stretched roll which is driven by a drive motor 46 having drive belt 48 associated therewith. Other stretching rolls 50 are provided in a conventional manner. Also associated with carriage assembly 20 are suitable cutting means for cutting the film as required. Mount~d on upper frame members 18 is a cylinder 56 which is adapted to drive a top platen into contact with the upper surface of load L to stabilize the same during the wrapping operation.
As will be appreciated ring member 20 can be of any desired configuration and indeed, it would be within the scope to change ring member 20 to have different configurations according to the load to be wrapped. As will also be noted, the carriage assembly 34 can thus be closer to the load L to be wrapped and does not have to travel the same distance as in a conventional wrapping machine.
It will be understood that the above described embodiment is for purposes of illustration only and that changes and modifications may be made thereto without departing from the spirit and scope of the invention.
Claims
1. A stretch wrapping apparatus comprising a frame, load receiving means interior of said frame, a ring member exterior of said load receiving means, means for moving said ring member in a vertical direction, and carriage assembly moveable about said ring, said carriage assembly including linear drive means for driving said carriage on said ring member, film supply means mounted on said carriage assembly, film dispensing means and film tensioning means being associated therewith.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2058377 CA2058377A1 (en) | 1991-12-23 | 1991-12-23 | Stretch wrappping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2058377 CA2058377A1 (en) | 1991-12-23 | 1991-12-23 | Stretch wrappping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2058377A1 true CA2058377A1 (en) | 1993-06-24 |
Family
ID=4148984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2058377 Abandoned CA2058377A1 (en) | 1991-12-23 | 1991-12-23 | Stretch wrappping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2058377A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5787691A (en) * | 1995-06-08 | 1998-08-04 | Newtec International S.A. | Apparatus for wrapping articles in plastic film |
| US5950407A (en) * | 1994-06-17 | 1999-09-14 | Rosen; Kjell | Production method for lawn sod rolls and a device to perform the method |
-
1991
- 1991-12-23 CA CA 2058377 patent/CA2058377A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5950407A (en) * | 1994-06-17 | 1999-09-14 | Rosen; Kjell | Production method for lawn sod rolls and a device to perform the method |
| US5787691A (en) * | 1995-06-08 | 1998-08-04 | Newtec International S.A. | Apparatus for wrapping articles in plastic film |
| US5878555A (en) * | 1995-06-08 | 1999-03-09 | Newtec International S.A | Apparatus for wrapping articles in plastic film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |