CA2430538A1 - Can crusher apparatus and method - Google Patents
Can crusher apparatus and method Download PDFInfo
- Publication number
- CA2430538A1 CA2430538A1 CA 2430538 CA2430538A CA2430538A1 CA 2430538 A1 CA2430538 A1 CA 2430538A1 CA 2430538 CA2430538 CA 2430538 CA 2430538 A CA2430538 A CA 2430538A CA 2430538 A1 CA2430538 A1 CA 2430538A1
- Authority
- CA
- Canada
- Prior art keywords
- area
- crushing
- cans
- rolls
- crushed
- 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
- 238000000034 method Methods 0.000 title claims description 5
- 238000007906 compression Methods 0.000 description 20
- 230000006835 compression Effects 0.000 description 19
- 239000003973 paint Substances 0.000 description 13
- 239000000126 substance Substances 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229940036051 sojourn Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
- B30B9/321—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for consolidating empty containers, e.g. cans
- B30B9/325—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for consolidating empty containers, e.g. cans between rotary pressing members, e.g. rollers, discs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Description
Can crusher apparatus and method Detailed description of a preferred embodiment The can crusher apparatus operates in a continuous mode to cxush or compress cans or small containers of different sizes and shapes, such that the cans or containers are emptied from their contents and therefore reduced to a configuration which greatly improves their ability to be recycled.
In order to be recycled, cans and containers must conform to strict environmental norms which regulate, among other things, the list of materials and substances which can be xecycled and the state into which they can be reintroduced into the recycling loop.
Prior to being recycled, cans and containers may contain multiple types of products in liquid, solid or even gaseous states. When they are recycled, such cans and containers usually still contain leftovers of their original contents.
Paint cans represent the prime interest of this invention, but the principles behind this invention are applicable to multiple types of other containers which can be recycled.
The apparatus includes an introduction area, a crushing axea, a recuperating area, a compression area and an exit area. Throughout a cycle in the apparatus, each can more or less follows a path which progressively and continuously transforms it from its original shape to a crushed state.
The introduction area represents the location where the cans are placed in the apparatus, waiting to be crushed. .Amongst different types of configurations which may be used in the introduction area, the apparatus may include a magazine type dispenser or a manual feed system with a conveyor.
The cans preferably arrive at the introduction area with one of its extremities removed, either the bottom or the cover of the can, or otherwise the can includes at least an opening to facilitate the extraction of the paint or other substances remaining inside the can as it goes through the apparatus. In another embodiment, the apparatus comprises another sub-system, I
physically located before or after the introduction area to remove the bottoms or the covers of the cans or to perform the required openings on at least one of the surfaces of the can.
The cans are introduced in the introduction area with ox without a specific orientation but preferably, with its opened area facing upward, and preferably leave it with a controlled and pre-selected orientation. In the preferred embodiment, the cover of the can is removed and the can enters the introduction area with its opening facing upward and its bottom (or closed surface) resting on a conveyor or other carrying means. However, other can introducing orientations may be used with this invention and will be further described hereinafter.
A guide is located at the junction of the introduction and crushing areas in order to flip the cans, if necessary, in the appropriate orientation for the crushing area, as illustrated in figure 1. When the can's upper edge or side surface starts interfering with the guide, the can is flipped along a lateral direction, such that its cylindrical or side surface now rests on the conveyor and that its bottom surface faces the crushing area. The apparatus also includes lateral supports where the flip of the can takes place, to ensure that the cans keep an adequate longitudinal positioning after being flipped on their side.
The crushing area comprises tu~o adjacent and cooperating members working in conjunction.
The spacing between the adjacent members defines a generally longitudinally extending passage for the cans. In the preferred embodiment, the first cooperating member consists of a longitudinally extending conveyor, preferably located beneath the second cooperating member. The first member acts as the can's support and carrier as soon as it leaves the introduction area.
Among the various types of known conveyors, the "table top conveyor" is preferably selected since it offers an almost continuous carrying surface, which usually ensures greater stability to the objects placed on the conveyor. In the embodiment presented hereinabove, the can has been flipped before entering the crushing area such that the can's side surface rests on the "table top conveyor", or table. The table therefore provides a carrying surface to the cans in this cycle of the apparatus. The can's first moments in the crushing area does not yet involve the second member, even if the can is engaged in the spacing defined by the two adjacent members.
In order to be recycled, cans and containers must conform to strict environmental norms which regulate, among other things, the list of materials and substances which can be xecycled and the state into which they can be reintroduced into the recycling loop.
Prior to being recycled, cans and containers may contain multiple types of products in liquid, solid or even gaseous states. When they are recycled, such cans and containers usually still contain leftovers of their original contents.
Paint cans represent the prime interest of this invention, but the principles behind this invention are applicable to multiple types of other containers which can be recycled.
The apparatus includes an introduction area, a crushing axea, a recuperating area, a compression area and an exit area. Throughout a cycle in the apparatus, each can more or less follows a path which progressively and continuously transforms it from its original shape to a crushed state.
The introduction area represents the location where the cans are placed in the apparatus, waiting to be crushed. .Amongst different types of configurations which may be used in the introduction area, the apparatus may include a magazine type dispenser or a manual feed system with a conveyor.
The cans preferably arrive at the introduction area with one of its extremities removed, either the bottom or the cover of the can, or otherwise the can includes at least an opening to facilitate the extraction of the paint or other substances remaining inside the can as it goes through the apparatus. In another embodiment, the apparatus comprises another sub-system, I
physically located before or after the introduction area to remove the bottoms or the covers of the cans or to perform the required openings on at least one of the surfaces of the can.
The cans are introduced in the introduction area with ox without a specific orientation but preferably, with its opened area facing upward, and preferably leave it with a controlled and pre-selected orientation. In the preferred embodiment, the cover of the can is removed and the can enters the introduction area with its opening facing upward and its bottom (or closed surface) resting on a conveyor or other carrying means. However, other can introducing orientations may be used with this invention and will be further described hereinafter.
A guide is located at the junction of the introduction and crushing areas in order to flip the cans, if necessary, in the appropriate orientation for the crushing area, as illustrated in figure 1. When the can's upper edge or side surface starts interfering with the guide, the can is flipped along a lateral direction, such that its cylindrical or side surface now rests on the conveyor and that its bottom surface faces the crushing area. The apparatus also includes lateral supports where the flip of the can takes place, to ensure that the cans keep an adequate longitudinal positioning after being flipped on their side.
The crushing area comprises tu~o adjacent and cooperating members working in conjunction.
The spacing between the adjacent members defines a generally longitudinally extending passage for the cans. In the preferred embodiment, the first cooperating member consists of a longitudinally extending conveyor, preferably located beneath the second cooperating member. The first member acts as the can's support and carrier as soon as it leaves the introduction area.
Among the various types of known conveyors, the "table top conveyor" is preferably selected since it offers an almost continuous carrying surface, which usually ensures greater stability to the objects placed on the conveyor. In the embodiment presented hereinabove, the can has been flipped before entering the crushing area such that the can's side surface rests on the "table top conveyor", or table. The table therefore provides a carrying surface to the cans in this cycle of the apparatus. The can's first moments in the crushing area does not yet involve the second member, even if the can is engaged in the spacing defined by the two adjacent members.
The second member is preferably a roll type conveyer, or a series of rolls, which are controlled and operated independently from the table. The rolls are preferably laterally extending and longitudinally located next to one another such that a "working surface" is defined above the carrying surface of the table. This working surface is located at an angle with respect to the table. The angle is such that the highest distance between the working surface and the carrying surface is near the entry of the crushing area. In the preferred embodiment, that angle does not have to be set-up, but the crushing area can comprise a angular control to orient the rolls for other modes of operation of the apparatus, for other size or types of cans to be crushed or to get another desired crushing condition.
Each can progressively engages in the spacing between the tal3le and the rolls, on the carrying surface. The carrying surface of the table advances without interference toward the compression area, at a pre-determined speed, until the can's edge of its closed portion gets closer to the working surface of the rolls. The rolls rotate in an opposite direction than the I S rotation direction of the conveyor, at a predetermined speed, which is preferably different than the carrying surface of the table.
If the apparatus is viewed from a lateral view (see figure I) and that the table rolls in a clockwise direction, the can which is carried by the carrying surface is moved in a generally right-hand direction. The rolls roll in a counterclockwise direction such that the working surface directly facing the carrying surface also moves in a generally right-hand direction (with a vertical component due to its angularity).
At that time, the can does not yet interfere with the angled working surface.
The can therefore continues to be carried by the carrying surface toward the compression area and, in this embodiment, in a right-hand side direction. When the bottom surface's edge interferes with the angled working surface, the can is progressively crushed by a shear force.
In a preferred embodiment, the table operates at a highex speed than the roll's speed. The crushing operation starts where the bottom of the can is in contact with the working surface, because the bottom portion of the can resting on the carrying surface goes at a higher speed than the bottom portion of the can in contact with the working surface.
Each can progressively engages in the spacing between the tal3le and the rolls, on the carrying surface. The carrying surface of the table advances without interference toward the compression area, at a pre-determined speed, until the can's edge of its closed portion gets closer to the working surface of the rolls. The rolls rotate in an opposite direction than the I S rotation direction of the conveyor, at a predetermined speed, which is preferably different than the carrying surface of the table.
If the apparatus is viewed from a lateral view (see figure I) and that the table rolls in a clockwise direction, the can which is carried by the carrying surface is moved in a generally right-hand direction. The rolls roll in a counterclockwise direction such that the working surface directly facing the carrying surface also moves in a generally right-hand direction (with a vertical component due to its angularity).
At that time, the can does not yet interfere with the angled working surface.
The can therefore continues to be carried by the carrying surface toward the compression area and, in this embodiment, in a right-hand side direction. When the bottom surface's edge interferes with the angled working surface, the can is progressively crushed by a shear force.
In a preferred embodiment, the table operates at a highex speed than the roll's speed. The crushing operation starts where the bottom of the can is in contact with the working surface, because the bottom portion of the can resting on the carrying surface goes at a higher speed than the bottom portion of the can in contact with the working surface.
The can is progressively crushed and as a result, any remaining paint or other substances are progressively squeezed out of the can, from the closed or preferably bottom surface, up to the opening of the can. Paint is therefore progressively forced out, from the closed end to the open end of the can.
In most prior art crushing systems, the can is usually compres sed along its axial direction and usually comprise a hole near its top or bottom to provide an exit to any remaining contents. In those cases however, multiple circumferentially extending pockets, grooves or recesses are generated on the can's cylindrical or side surface as it gets crushed, such that paint or other substances in the can may accumulate and get stuck in those pockets during the crushing process. The pockets also significantly impair the goal of achieving the optimal crushing thickness of the cans, since even a "completely" crushed can using such prior art devices still includes a plurality of pockets, grooves or recesses located on top of one another and along the circumference of the cans.
The progressive shear force crushing process and the specific can positioning provided by the apparatus of our invention significantly reduces the occurrences of pockets in the crushed can, such that the final thickness of the can and the residual quantities of paint or other substances inside the can is minimized.
The distance between the working surface and the carrying surface is at its minimum near the exit of the crushing area. In another embodiment, this distance can be adjusted and pre-selected for various types of cans in order to put them in a desired pre-crushed state (before the can enters the compression area), with a certain thickness and such that a large portion of paint has had a chance to be removed.
The recuperating area is located in the vicinity of the introduction area, the crushing area, the compression area and the exit area. As paint or other substances starts being expelled from the can at its opening, it is recuperated in the recuperating area, which can be any type of container connected to the apparatus and also preferably located underneath and aligned with the vertical projection of the areas mentioned hereinabove.
After leaving the crushing area, the pre-crashed can enters the compression axea. As shown in Figure l, the compression area includes at Least two generally parallel and laterally rotating toothed rolls. The toothed rolls are preferably located one on top of the other and vertically aligned to be complementary. If more than two toothed rolls are used, they are longitudinally located in rows for complementary.
Each toothed roll comprises gear type section profiles which are repeated along its lateral length. The teeth numbers, the size and the shape of the section profiles depends on the distance between the upper and lowex toothed rolls, the desired compression effect of the can in the compression area and the fact that the can still needs to be moved out of the apparatus, which requires a friction and/or "meshing" grip on the can. Any other teeth or surface configuration of those rolls providing the advantages stated herein could be a substitute to the toothed rolls.
By rotating in opposite directions (the lower toothed roll rotates in a clockwise direction and the upper toothed roll rotates ire a counter-clockwise direction in Figure 1) the rolls "mesh"
with the crushed can in the middle along the compression area, for a final compression stage.
According to the hereinabove described embodiment, the toothed rolls participate in compressing the pre-crushed can to its desired final thickness and to carrying the crushed can in a right-hand direction, toward the exit area.
The "meshing" of corresponding toothed rolls does not physically implicate the complete entry of one toothed roll's tooth inside a cavity in between consecutive teeth in the other toothed roll, but rather acts like claws, at a pre-selected distance from one another "gripping"
on the crushed can and doing a final compression process.
The level of compression is ensured by the distance between the upper and lower rolls. In one embodiment, the upper rolls are connected to a spring system offering an adaptable thickness control of the can going through the compression area.
Any remaining paint is squeezed out from the can at the beginning of the compression area and falls in the recuperating area. The compression area therefore effectuates the final compression of the can with a minimum amount of paint residually left on the toothed rolls.
In most prior art crushing systems, the can is usually compres sed along its axial direction and usually comprise a hole near its top or bottom to provide an exit to any remaining contents. In those cases however, multiple circumferentially extending pockets, grooves or recesses are generated on the can's cylindrical or side surface as it gets crushed, such that paint or other substances in the can may accumulate and get stuck in those pockets during the crushing process. The pockets also significantly impair the goal of achieving the optimal crushing thickness of the cans, since even a "completely" crushed can using such prior art devices still includes a plurality of pockets, grooves or recesses located on top of one another and along the circumference of the cans.
The progressive shear force crushing process and the specific can positioning provided by the apparatus of our invention significantly reduces the occurrences of pockets in the crushed can, such that the final thickness of the can and the residual quantities of paint or other substances inside the can is minimized.
The distance between the working surface and the carrying surface is at its minimum near the exit of the crushing area. In another embodiment, this distance can be adjusted and pre-selected for various types of cans in order to put them in a desired pre-crushed state (before the can enters the compression area), with a certain thickness and such that a large portion of paint has had a chance to be removed.
The recuperating area is located in the vicinity of the introduction area, the crushing area, the compression area and the exit area. As paint or other substances starts being expelled from the can at its opening, it is recuperated in the recuperating area, which can be any type of container connected to the apparatus and also preferably located underneath and aligned with the vertical projection of the areas mentioned hereinabove.
After leaving the crushing area, the pre-crashed can enters the compression axea. As shown in Figure l, the compression area includes at Least two generally parallel and laterally rotating toothed rolls. The toothed rolls are preferably located one on top of the other and vertically aligned to be complementary. If more than two toothed rolls are used, they are longitudinally located in rows for complementary.
Each toothed roll comprises gear type section profiles which are repeated along its lateral length. The teeth numbers, the size and the shape of the section profiles depends on the distance between the upper and lowex toothed rolls, the desired compression effect of the can in the compression area and the fact that the can still needs to be moved out of the apparatus, which requires a friction and/or "meshing" grip on the can. Any other teeth or surface configuration of those rolls providing the advantages stated herein could be a substitute to the toothed rolls.
By rotating in opposite directions (the lower toothed roll rotates in a clockwise direction and the upper toothed roll rotates ire a counter-clockwise direction in Figure 1) the rolls "mesh"
with the crushed can in the middle along the compression area, for a final compression stage.
According to the hereinabove described embodiment, the toothed rolls participate in compressing the pre-crushed can to its desired final thickness and to carrying the crushed can in a right-hand direction, toward the exit area.
The "meshing" of corresponding toothed rolls does not physically implicate the complete entry of one toothed roll's tooth inside a cavity in between consecutive teeth in the other toothed roll, but rather acts like claws, at a pre-selected distance from one another "gripping"
on the crushed can and doing a final compression process.
The level of compression is ensured by the distance between the upper and lower rolls. In one embodiment, the upper rolls are connected to a spring system offering an adaptable thickness control of the can going through the compression area.
Any remaining paint is squeezed out from the can at the beginning of the compression area and falls in the recuperating area. The compression area therefore effectuates the final compression of the can with a minimum amount of paint residually left on the toothed rolls.
At the end of the compression area, the upper and lower rolls automatically push the crushed can to the exit area, which could be any type of container or space for reception of the crushed cans.
The apparatus operates in a continuous mode which does not rE;quire constant repositioning of the can during its sojourn in the apparatus. Therefore the estimated duration of a cycle bettveen the moment where a can leaves the introduction area to the moment where the can enters the exit area can be approximately 5 seconds.
For maintenance of the apparatus, a plurality of fixed and laterally extending scrapers are located near the rolls or any other surface, like conveyors, where paint or other substances can be accumulated and not fall in the recuperating area. For cumbersome or difficult access areas, mobile scrapers are located in the vicinity of some components of the apparatus where paint may need to be removed.
Also, another embodiment of the apparatus includes a mechanism, automated or not, which allows the upper roll in the compression area to be temporarily separated from the lower roll in order to minimize the quantity of debris tike paint or other substances to be stuck at the entry of the compression area. This operation can be introduced after each can has gone trough a full cycle in the apparatus.
The apparatus operates in a continuous mode which does not rE;quire constant repositioning of the can during its sojourn in the apparatus. Therefore the estimated duration of a cycle bettveen the moment where a can leaves the introduction area to the moment where the can enters the exit area can be approximately 5 seconds.
For maintenance of the apparatus, a plurality of fixed and laterally extending scrapers are located near the rolls or any other surface, like conveyors, where paint or other substances can be accumulated and not fall in the recuperating area. For cumbersome or difficult access areas, mobile scrapers are located in the vicinity of some components of the apparatus where paint may need to be removed.
Also, another embodiment of the apparatus includes a mechanism, automated or not, which allows the upper roll in the compression area to be temporarily separated from the lower roll in order to minimize the quantity of debris tike paint or other substances to be stuck at the entry of the compression area. This operation can be introduced after each can has gone trough a full cycle in the apparatus.
Claims (2)
1. A can crushing apparatus comprising:
a) means to receive a can to be crushed;
b) means to flip said can on the side;
c) first gradual crushing means, itself comprising i) a first contacting surface;
ii) a can moving means;
iii) a second can contacting surface.
a) means to receive a can to be crushed;
b) means to flip said can on the side;
c) first gradual crushing means, itself comprising i) a first contacting surface;
ii) a can moving means;
iii) a second can contacting surface.
2. A method for crushing cans comprising the steps of:
a) creating an opening in said can;
b) placing the can on its side on a conveyor having a receiving area and an exit area with said opening generally facing said receiving area;
c) progressively crushing said can using a V-shaped crushing means.
a) creating an opening in said can;
b) placing the can on its side on a conveyor having a receiving area and an exit area with said opening generally facing said receiving area;
c) progressively crushing said can using a V-shaped crushing means.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2430538 CA2430538A1 (en) | 2003-05-30 | 2003-05-30 | Can crusher apparatus and method |
| PCT/CA2004/000830 WO2004106047A1 (en) | 2003-05-30 | 2004-05-31 | Can crusher apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2430538 CA2430538A1 (en) | 2003-05-30 | 2003-05-30 | Can crusher apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2430538A1 true CA2430538A1 (en) | 2004-11-30 |
Family
ID=33480334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2430538 Abandoned CA2430538A1 (en) | 2003-05-30 | 2003-05-30 | Can crusher apparatus and method |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2430538A1 (en) |
| WO (1) | WO2004106047A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20130449A1 (en) * | 2013-06-03 | 2014-12-04 | Advance S R L | COMPRESSION CHAMBER FOR MACHINE FOR DIFFERENTIATED COLLECTION. |
| CN116423905B (en) * | 2023-05-15 | 2024-01-12 | 江苏群达机械科技有限公司 | Hot-pressing treatment system for scrap iron steel slag |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8905352U1 (en) * | 1988-11-03 | 1989-12-14 | Hofmann, Karl | Device for disposing of cans |
| JP2561177B2 (en) * | 1990-12-27 | 1996-12-04 | 小高工業株式会社 | Empty can processor |
| JPH08318396A (en) * | 1995-05-26 | 1996-12-03 | Matsuoka Seisakusho:Kk | Crushing device of throwaway container |
| NO308347B1 (en) * | 1998-05-22 | 2000-09-04 | Tomra Systems Asa | Device for compressing objects |
| US6131509A (en) * | 1999-02-12 | 2000-10-17 | Cp Manufacturing, Inc. | Method and apparatus for perforating and crushing containers |
| DE10055201A1 (en) * | 2000-11-07 | 2002-05-08 | Prokent Ag | Empty drink container compacting device has conveying compressing and compressing devices in forms of rolls driven by drum motors |
-
2003
- 2003-05-30 CA CA 2430538 patent/CA2430538A1/en not_active Abandoned
-
2004
- 2004-05-31 WO PCT/CA2004/000830 patent/WO2004106047A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004106047A1 (en) | 2004-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |