CA2411833C - Procedure and machine to separate cardboard components from bulk waste paper - Google Patents
Procedure and machine to separate cardboard components from bulk waste paper Download PDFInfo
- Publication number
- CA2411833C CA2411833C CA002411833A CA2411833A CA2411833C CA 2411833 C CA2411833 C CA 2411833C CA 002411833 A CA002411833 A CA 002411833A CA 2411833 A CA2411833 A CA 2411833A CA 2411833 C CA2411833 C CA 2411833C
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- Prior art keywords
- components
- conveyor device
- paper
- machine
- receiver device
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/026—Separating fibrous materials from waste
- D21B1/028—Separating fibrous materials from waste by dry methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/023—Cleaning wood chips or other raw materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Sorting Of Articles (AREA)
- Paper (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
For this purpose, a conveyor device (2) is provided on which the bulk is transported to a sorting station (5). At this point, the cardboard components are extracted mechanically. For this, the paper and cardboard components are transported while lying flat, and are only partially supported, for which the conveyor device (2) includes lowered free spaces (7) between the support areas. A receiver device (9) possessing freestanding barbs (11) moves synchronously with the conveyor device (2). These barbs (11) are arranged pointing toward the non-supported sections of the paper and cardboard components, and can extend into the free spaces (7) formed on the conveyor device (2). For this, the cardboard components are transfixed by, and held to the barbs (11) of the receiver device (9), but the paper components are not. The cardboard components are stripped off the receiver device (9) at a point that is spatially separate from the supply end of the conveyor device, at which the paper components, which were not transfixed by the barbs of the receiver device (9), exit.
Description
Docket No.: THIELK-024XX
Rev. 11/01/2002 PROCEDURE AND MACHINE TO SEPARATE CARDBOARD
COMPONENTS FROM BULK WASTE PAPER
TECHNICAL FIELD
00( 01) The invention relates to a procedure and a machine to separate cardboard components from bulk waste paper consisting of softer paper components and stiffer cardboard components.
BACKGROUND INFORMATION
00r 021 Waste paper here means paper collected for recycling that is formed in bulk after coarse sorting that consists of softer paper components and stiffer cardboard components. The paper components are delivered by recycling firms to paper factories that use the paper components for the manufacture of newsprint.
Newspapers nowadays are printed on paper that consists to a large extent of recycled paper. This assumes that the used, recycled paper will undergo a de-inking process in which the color components are extracted from the cellulose material.
This, however, works only with printed paper, but not with colored paper or cardboard. Therefore, the cardboard components must be separated out of the bulk waste-paper to be recycled.
SUMMARY OF THE INVENTION
00[ 03l In practice, it is not possible with justifiable expense to completely extract the cardboard component from a normal mass of waste paper. Therefore, paper factories in which waste paper is used to manufacture newsprint still accept a cardboard content of 2.5%. Therefore, after the coarse sorting process, arriving waste paper undergoes a fine sorting process in which not only colored paper content but also the cardboard content are separated. This fine sorting process is performed manually on moving linear transport devices such as conveyor belts by a large number of workers, and is an activity that must be performed under difficult conditions, and is one whose accuracy decreases as the concentration of the workers decreases in the course of a shift.
001 041 From the old German patent document 637 056 a sorting facility for household trash by means of which softer components such as waste paper and fabric may be extracted is known. For this, a transport belt equipped with barbs is provided onto which the trash components are thrown, and on whose barbs the softer components, including pieces of paper, are transfixed. By means of a drum that engages at the deflection point of the transport belt equipped with barbs, using hooks into slotted teeth of the idler roller as far as below the support area of the transport belt, the transfixed pieces of paper are stripped ..... ........ _....................... _..._........
BOURQUE & ASSOCIATES, P.A.
off the barbs of the transport belt. Discrimination between pieces of softer paper and relatively stiffer cardboard is not provided here.
00( 051 US patent document 5,590,789 describes a procedure and a device to sort thermoplastic components from a stream of materials, whereby a barbed roller is used. The thermoplastic components transfixed on the barbs of this roller are stripped off along the circumference of the barbed roller at a distance from the reception point by a suitable device. The device known in the document does not provide a device to extract cardboard from bulk waste paper, nor is it suitable for this purpose.
10006 The task of the invention is to create a procedure and a machine of the type mentioned at the outset that will enable extraction of cardboard components from bulk waste paper with a constantly high level of accuracy.
10007 The task is solved procedurally by the invention in that the paper and cardboard components are transported flat on a conveyor belt and only partially supported with such a support separation, and in that first, the softer paper components are drawn into the free space below the non-supported sections of the conveyor belt as well as carried further by the conveyor belt by means of ascending barbs of a receiver device over the non-supported sections of the paper and cardboard components, and second, the cardboard components are penetrated and ...... .............. _._._............. _...........
BOURQUE & ASSOCIATES, P.A.
transfixed, after which the cardboard components are stripped off the barbs of the receiver device at a spatial separation from the paper components passing through the conveyor belt.
00r 0s1 Further, this task is solved by a suitable machine by means of a conveyor device transporting the paper and cardboard components lying flat. The conveyor device ends at a sorting station, and includes empty spaces in the end area between supporting areas as well as below it, and the task is further solved by means of a receiver device positioned at the sorting station. This receiver device includes free-standing, projecting barbs, and moves synchronously with the conveyor belt, whereby the barbs of the receiver device are so arranged that they extend down through the lower free spaces of the receiver device and draw along the paper components remaining on the conveyor belt and transfix and extract the cardboard components, and it also includes a stripper device for the cardboard components that is positioned on the one hand in the movement area of the receiver device, and on the other hand, is spatially separated from the exit position for the paper components along the conveyor belt.
LQ0091 Essential to the invention is the consideration that printed paper such as newsprint is relatively soft, and thus presents a high degree of flexibility in comparison with cardboard. Resultantly, cardboard may be transfixed by barbs or BOURQUE & ASSOCIATES, P.A.
spines on the receiver device included as part of the invention under certain conditions, while the flexible paper will not be.
Accordingly, the slot dimension or the diameter of the free spaces on the conveyor belt transporting the bulk waste paper is so selected that the barbs of the receiver device may press the paper lying largely flat into these lower free spaces, and, in contrast, the stiffer cardboard in the bridging area between the support positions at the edge of the free spaces will present such a high resistance to bending to the imposed barbs of the receiver device that they are pierced by the barbs. The barbs are shaped accordingly, and especially thus configured in the area of the barb tips. The cardboard pieces transfixed on the barbs are retained on the receiver device because they are jammed, and are removed from the conveyor device, while the paper components are carried along by the conveyor belt, from which they are expelled. Stripping the cardboard components from the receiver device occurs at another position than where the paper components are expelled from the conveyor device, so that the cardboard components extracted from the receiver device may be spatially separated from the paper components.
0010 With a conveyor device for the transport of bulk waste paper so that the paper and cardboard components are lying flat, the support separations between the support points which allow piercing of the cardboard lying flat, but not of the flexible _.................... --.......... _ _ ___ BOURQUE & ASSOCIATES, P.A.
paper, may be configured in various ways. Thus, the conveyor device may consist of a conveyor belt that has proper apertures whose positions correspond to the arrangement of the projecting barbs in order to enable the desired barb engagement. The conveyor device may also consist of a conveyor belt that includes a large number of projecting humps that form the support positions, and between which the barbs of the receiver device extend.
Longitudinal slots in the conveyor device are also, possible, as will be explained in the following using an embodiment example. In a particularly advantageous embodiment, the barbs of the receiver device may mesh with the roller forming the supply end of the conveyor device that possesses the free spaces to receive the barbs.
[0011] Advantageous embodiments of the invention may be taken from the sub-claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] These and other features and advantages of the present invention will be better understood by reading the following detailed description, taken together with the drawings wherein:
O0I 131 Figure 1 a largely schematic, perspective reproduction of a device to extract the cardboard components from bulk waste paper, as seen obliquely from above the supply station;;
00j 141 Figure 2 is a perspective view of another embodiment of the end of the conveyor device transporting the bulk material in the sorting station of a device positioned as shown in Figure 10015 Figure 3 an oblique view from above the end of the conveyor device shown in Figure 2 with the receiver device omitted-;
00r 1s1 Figure 4 a view of the end of the conveyor device as in Figure 2 viewed along the transport direction;; and 10017 Figure 5 another slightly perspective lateral view of the end of the conveyor device as in Figure 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
0018 Specifically, Figure 1 shows a frame 1, which supports a conveyor device 2 that consists of conveyor belts 3 positioned parallel with one another and at the same height. The conveyor belts 3 are guided over common idler rollers 19 and 20 that are driven by a motor (not shown). The upper outer side of the carrying run of the conveyor belts 3 represent the transport side of the conveyor device 2; the conveyor belts 3 are moving _..._...._._._.._.:...._._._.._._....._._..__..
BOURQUE & ASSOCIATES, P.A.
in the direction of the arrow A. On one end of the frame 1, the transport belts 3 have their transport side free from above, thus forming a supply station 4 at which the paper and cardboard components of bulk waste paper are placed onto the conveyor device 2 lying flat. These paper and cardboard components are transported from the supply station 4 to a sorting station 5.
0019 Another frame 8 is positioned on the frame 1 outside the front supply station 4 that supports a receiver device 9. This receiver device 9 includes circulating belts 10 that are guided over joint idler rollers 21 and 22, of which one is driven by a motor so that the lower carrying runs of the belts 10 move synchronously according to the arrow B with the upper carrying runs of the transport belts 3 of the conveyor device 2 along their supply direction.
00[ 20l The transport belts 3 that are positioned parallel to one another are separated from one another at a specific distance.
One of the belts 10 of the receiver device 9 is positioned to flow along with each gap between two of these transport bands 3.
The receiver device 9 lies with its outer side of its lower carrying run are essentially at the same height as the outer side of the upper carrying runs of the adjacent transport belts 3. In the area of the sorting station 5, the receiver device 9 with its belts 10 overlaps the conveyor device 2 so that, in the rearward area, the receiver device 9 viewed along the transport ,...._....__.._........................
BOURQUE & ASSOCIATES, P.A.
direction extends above the reverse idler end of the conveyor device 2.
00[ 211 Glide rails 6 are positioned between the separated transport belts 3 of the conveyor device 2, against whose upper sides the belts 10 of the receiver device 9 are pressed at at least one point at which entry will subsequently be made. The belts 10 have free-standing barbs 10 on their outer sides that do not collide with the glide rails 6 because the glide rails 6 possess longitudinal slots that form hollow cavities 7 below the transport level or surface for the paper and cardboard components being transported while lying flat on it, into which the projecting barbs 11 of the belts 10 of the receiver device 9 may project. Also, the upper sides of the glide rails 6 are at the same level as the outer sides of the upper carrying runs of the transport belts 3, so that the goods placed onto the transport belts 3 which are carried along the transport direction by means of adequate friction may slide along the upper sides of the glide rails 6.
0022 When the mass consisting of paper and cardboard components arrives to the sorting station 5, the barbs 11 on the circulating belts 10 of the receiver device 9 come into play.
The barbs 11 that lie about the circumference of the belts 10 of the receiver device 9 in a row with the slots or hollow cavities 7 of the glide rails 6 of the conve.yor device 2 press the paper BOURQUE & ASSOCIATES, P.A.
components into the above-mentioned hollow cavities 7 without penetrating the flexible or soft paper. In contrast, the cardboard in the cardboard components bridging the hollow cavities 7 is so stiff that the cardboard is pierced by the barbs 11 on the belts 10, whereby the cardboard components are transfixed on one or more of the barbs 11 on the belts 10. The paper drawn into the hollow cavities 7 and not pierced remains on the conveyor device 2, and is transported further by it.
00[ 23l The paper components move off the conveyor device 2 at the end of the conveyor device 2, i.e., along the transport direction after the idler roller 20, and fall onto a exit point 14. In contrast to this, the cardboard components transfixed on the barbs 11 on the belts 10 and adhering to the outer side of the lower carrying runs are passed along and separated using a separation partition 13 that divides the exit point 14 from a exit point 15 for the cardboard components. Above the exit point 15, the belts 10 move past a stripping device 12 with their outer sides facing it. This stripping device 12 strips the cardboard components from the barbs 11 on the belts 10, so that these cardboard components fall off the rear end of the entire device onto the exit point 15.
0024 The two exit points 14 and 15, one for the paper components and the other for the cardboard components, may be configured as supply stations for further transport devices in BOURQUE & ASSOCIATES, P.A.
order to direct the paper and cardboard components along their separate pathways for further use.
O0t 25i It must be ensured that the belts 10 of the receiver device 9 for the cardboard components move in the area of the lower carrying run at the same speed as the upper carrying runs of the transportbelts 3 of the conveyor device 2. The specific embodiment of the invention shown in the illustration offers the advantage of being able to provide a relative velocity between the belts 10 of the receiver device 9 and the transport belts 3 of the conveyor device 2, since the belts 10 gliding on the glide rails 6, whose barbs 11 extend through the longitudinal slot-shaped free spaces 7 of the glide rails 6, need not come into contact with the transport belts 3 of the conveyor device 2.
-0026 The carrying runs of the belts 10 of the receiver device 9 adjacent to the conveyor device 2 overlap in the area of the input side of the sorting station 5 at their inner sides by means of sensor rollers 16. These sensor rollers 16 may pivot against an elastic resistance. For this, the sensor rolls 10 are mounted on a bracket 17 shaped like a rocker on whose first lever arm is positioned on the sensor roller 16. A tensioning spring 18 engages with the second lever arm of the bracket 17, providing the force onto the particular carrying run of the concerned belt 10. The separation between the lower carrying BOURQUE & ASSOCIATES, P.A.
runs of the belts 10 of the receiver device 9 and the transport side of the conveyor device 2 increases along the transport direction away from the sensor rollers 16.
10027 The belts 10 increase their separation from the conveyor device 2 from each sensor roller 16 up to the input point at the idler roller 21 so that a decreasing angle for the goods to be sorted is formed up to the sensor rollers 10 at the input side of the sorting station 5. If the mass to be sorted lying flat is too thick because of foreign objects such as pieces of wood, then at least one of the sensor rollers 16 pivots along with the concerned run of the belt 10 of the receiver device 9 against the force of the spring 18 to the extent that the entire device stops in order to allow the removal of the foreign object without having to gain access into the separated paper and cardboard components.
10028 It remains to provide a special track at the idler rollers 19 and 20 of the conveyor device 2 in order to guide the transport belts 3, since the lateral displacement of the transport belts 3 is ensured by the glide rails 6 on the one hand, and by additional guide rails 23 on the outer sides of the two transport belts 3 positioned at the outside. Likewise, such guides are not required on the idler rollers 21 and 22 for the belts 10 of the receiver device 9. Guide rollers 24 are provided on both sides of the belts 10 for lateral guiding of the belts ..- - ............._._.._...._.....__._......_.._._.
BOURQUE & ASSOCIATES, P.A.
near the concerned idler rollers 21, 22 that are positioned on cross spars 25 of the frame 8.
10029 The device shown in Figure 1 may be modified in a manner shown in Figures 2 through 5. Instead of individual transport belts 3, the conveyor device 2 includes a supply belt 26 that extends over the entire transport width of the conveyor device 2. In the same manner as the transport belts 3, the supply belt 26 is passed over idler rollers, one of which is shown in Figure 2 near the idler roller 20 at the supply end of the conveyor device 2. At the output end of the supply belt 26 is a roller 28 whose upper edge is at the same level as the upper carrying run 27 of the supply belt 26. Also, the axis of the roller 28 is parallel to the idler roller 20 for the supply belt 26, and the separation between the roller 28 and the output end of the supply belt 26 is so small that the mass to be sorted is fed away from the supply belt 20 via the upper edge area of the roller 28. Additionally, the roller 28 may be driven at a circumferential speed corresponding to the supply speed of the conveyor device 2. The roller 28 forms the supply end of the entire conveyor device 2 from which the paper components exit.
10030 The cardboard components are treated differently here too- they are penetrated and transfixed on the barbs 11 of the receiver device 9, as is the case with the embodiment example in Figure 1. This is why the receiver device 9 is configured the ... --.......__ .............._..........._._...._.
BOURQUE & ASSOCIATES, P.A.
same. The difference from the modified embodiment in Figure 1 is that the free spaces 7 are provided at the roller 28 into which the barbs 11 of the belts 10 of the. receiver device 9 extend or penetrate.
00f 311 Additionally, in particular as Figure 4 shows, the roller 28 consists of a large number of coaxially-arranged disks 29 of the same diameter positioned at regular distances along an axis 30. As a result of these distances, a free space 7 exists between two of the named disks 29 that is free for movement in the circumferential direction of the roller 28. On the transport belts 10, the barbs 11 are arranged in a row aligned along the circulation direction, and such a row of barbs is aligned toward one of these free spaces into which the barbs extend. The flexible paper components here are also pressed in by the barbs 11, and drop off the side of the roller 28 facing away from the supply belt 26. In contrast, the cardboard components bridge over the free spaces 7, and are supported correspondingly by the edges of the disk 29 extending in the circumferential direction of the roller 28. Thus, the cardboard components are also transfixed by the barbs 7 on the belts 10 of the receiver device 9 because of their stiffness, and are carried along by the circulating remover device 9 over the exit side of the roller 28 onto which the paper components are tossed.
............ ._._............. ._..__.....
BOURQUE & ASSOCIATES, P.A.
00~ 321 In contrast to Figures 2 - 5, the receiver device 9 may include a larger number of belts 10 or, instead of this, one or two such belts with greater width in order to increase the number of rows of barbs 11 engaging with the circumferential free spaces 7 of the roller 28. Also, the roller 28 may be formed at those points at which the barbs 11 do not engage without a circumferential contour including the free spaces 7.
[0033] Modifications and substitutions by one of ordinary skill in the art are considered to be within the scope of the present invention which is not to be limited except by the claims which follow.
.......------------- __._._._.-........., BOURQUE & ASSOCIATES, P.A.
Rev. 11/01/2002 PROCEDURE AND MACHINE TO SEPARATE CARDBOARD
COMPONENTS FROM BULK WASTE PAPER
TECHNICAL FIELD
00( 01) The invention relates to a procedure and a machine to separate cardboard components from bulk waste paper consisting of softer paper components and stiffer cardboard components.
BACKGROUND INFORMATION
00r 021 Waste paper here means paper collected for recycling that is formed in bulk after coarse sorting that consists of softer paper components and stiffer cardboard components. The paper components are delivered by recycling firms to paper factories that use the paper components for the manufacture of newsprint.
Newspapers nowadays are printed on paper that consists to a large extent of recycled paper. This assumes that the used, recycled paper will undergo a de-inking process in which the color components are extracted from the cellulose material.
This, however, works only with printed paper, but not with colored paper or cardboard. Therefore, the cardboard components must be separated out of the bulk waste-paper to be recycled.
SUMMARY OF THE INVENTION
00[ 03l In practice, it is not possible with justifiable expense to completely extract the cardboard component from a normal mass of waste paper. Therefore, paper factories in which waste paper is used to manufacture newsprint still accept a cardboard content of 2.5%. Therefore, after the coarse sorting process, arriving waste paper undergoes a fine sorting process in which not only colored paper content but also the cardboard content are separated. This fine sorting process is performed manually on moving linear transport devices such as conveyor belts by a large number of workers, and is an activity that must be performed under difficult conditions, and is one whose accuracy decreases as the concentration of the workers decreases in the course of a shift.
001 041 From the old German patent document 637 056 a sorting facility for household trash by means of which softer components such as waste paper and fabric may be extracted is known. For this, a transport belt equipped with barbs is provided onto which the trash components are thrown, and on whose barbs the softer components, including pieces of paper, are transfixed. By means of a drum that engages at the deflection point of the transport belt equipped with barbs, using hooks into slotted teeth of the idler roller as far as below the support area of the transport belt, the transfixed pieces of paper are stripped ..... ........ _....................... _..._........
BOURQUE & ASSOCIATES, P.A.
off the barbs of the transport belt. Discrimination between pieces of softer paper and relatively stiffer cardboard is not provided here.
00( 051 US patent document 5,590,789 describes a procedure and a device to sort thermoplastic components from a stream of materials, whereby a barbed roller is used. The thermoplastic components transfixed on the barbs of this roller are stripped off along the circumference of the barbed roller at a distance from the reception point by a suitable device. The device known in the document does not provide a device to extract cardboard from bulk waste paper, nor is it suitable for this purpose.
10006 The task of the invention is to create a procedure and a machine of the type mentioned at the outset that will enable extraction of cardboard components from bulk waste paper with a constantly high level of accuracy.
10007 The task is solved procedurally by the invention in that the paper and cardboard components are transported flat on a conveyor belt and only partially supported with such a support separation, and in that first, the softer paper components are drawn into the free space below the non-supported sections of the conveyor belt as well as carried further by the conveyor belt by means of ascending barbs of a receiver device over the non-supported sections of the paper and cardboard components, and second, the cardboard components are penetrated and ...... .............. _._._............. _...........
BOURQUE & ASSOCIATES, P.A.
transfixed, after which the cardboard components are stripped off the barbs of the receiver device at a spatial separation from the paper components passing through the conveyor belt.
00r 0s1 Further, this task is solved by a suitable machine by means of a conveyor device transporting the paper and cardboard components lying flat. The conveyor device ends at a sorting station, and includes empty spaces in the end area between supporting areas as well as below it, and the task is further solved by means of a receiver device positioned at the sorting station. This receiver device includes free-standing, projecting barbs, and moves synchronously with the conveyor belt, whereby the barbs of the receiver device are so arranged that they extend down through the lower free spaces of the receiver device and draw along the paper components remaining on the conveyor belt and transfix and extract the cardboard components, and it also includes a stripper device for the cardboard components that is positioned on the one hand in the movement area of the receiver device, and on the other hand, is spatially separated from the exit position for the paper components along the conveyor belt.
LQ0091 Essential to the invention is the consideration that printed paper such as newsprint is relatively soft, and thus presents a high degree of flexibility in comparison with cardboard. Resultantly, cardboard may be transfixed by barbs or BOURQUE & ASSOCIATES, P.A.
spines on the receiver device included as part of the invention under certain conditions, while the flexible paper will not be.
Accordingly, the slot dimension or the diameter of the free spaces on the conveyor belt transporting the bulk waste paper is so selected that the barbs of the receiver device may press the paper lying largely flat into these lower free spaces, and, in contrast, the stiffer cardboard in the bridging area between the support positions at the edge of the free spaces will present such a high resistance to bending to the imposed barbs of the receiver device that they are pierced by the barbs. The barbs are shaped accordingly, and especially thus configured in the area of the barb tips. The cardboard pieces transfixed on the barbs are retained on the receiver device because they are jammed, and are removed from the conveyor device, while the paper components are carried along by the conveyor belt, from which they are expelled. Stripping the cardboard components from the receiver device occurs at another position than where the paper components are expelled from the conveyor device, so that the cardboard components extracted from the receiver device may be spatially separated from the paper components.
0010 With a conveyor device for the transport of bulk waste paper so that the paper and cardboard components are lying flat, the support separations between the support points which allow piercing of the cardboard lying flat, but not of the flexible _.................... --.......... _ _ ___ BOURQUE & ASSOCIATES, P.A.
paper, may be configured in various ways. Thus, the conveyor device may consist of a conveyor belt that has proper apertures whose positions correspond to the arrangement of the projecting barbs in order to enable the desired barb engagement. The conveyor device may also consist of a conveyor belt that includes a large number of projecting humps that form the support positions, and between which the barbs of the receiver device extend.
Longitudinal slots in the conveyor device are also, possible, as will be explained in the following using an embodiment example. In a particularly advantageous embodiment, the barbs of the receiver device may mesh with the roller forming the supply end of the conveyor device that possesses the free spaces to receive the barbs.
[0011] Advantageous embodiments of the invention may be taken from the sub-claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] These and other features and advantages of the present invention will be better understood by reading the following detailed description, taken together with the drawings wherein:
O0I 131 Figure 1 a largely schematic, perspective reproduction of a device to extract the cardboard components from bulk waste paper, as seen obliquely from above the supply station;;
00j 141 Figure 2 is a perspective view of another embodiment of the end of the conveyor device transporting the bulk material in the sorting station of a device positioned as shown in Figure 10015 Figure 3 an oblique view from above the end of the conveyor device shown in Figure 2 with the receiver device omitted-;
00r 1s1 Figure 4 a view of the end of the conveyor device as in Figure 2 viewed along the transport direction;; and 10017 Figure 5 another slightly perspective lateral view of the end of the conveyor device as in Figure 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
0018 Specifically, Figure 1 shows a frame 1, which supports a conveyor device 2 that consists of conveyor belts 3 positioned parallel with one another and at the same height. The conveyor belts 3 are guided over common idler rollers 19 and 20 that are driven by a motor (not shown). The upper outer side of the carrying run of the conveyor belts 3 represent the transport side of the conveyor device 2; the conveyor belts 3 are moving _..._...._._._.._.:...._._._.._._....._._..__..
BOURQUE & ASSOCIATES, P.A.
in the direction of the arrow A. On one end of the frame 1, the transport belts 3 have their transport side free from above, thus forming a supply station 4 at which the paper and cardboard components of bulk waste paper are placed onto the conveyor device 2 lying flat. These paper and cardboard components are transported from the supply station 4 to a sorting station 5.
0019 Another frame 8 is positioned on the frame 1 outside the front supply station 4 that supports a receiver device 9. This receiver device 9 includes circulating belts 10 that are guided over joint idler rollers 21 and 22, of which one is driven by a motor so that the lower carrying runs of the belts 10 move synchronously according to the arrow B with the upper carrying runs of the transport belts 3 of the conveyor device 2 along their supply direction.
00[ 20l The transport belts 3 that are positioned parallel to one another are separated from one another at a specific distance.
One of the belts 10 of the receiver device 9 is positioned to flow along with each gap between two of these transport bands 3.
The receiver device 9 lies with its outer side of its lower carrying run are essentially at the same height as the outer side of the upper carrying runs of the adjacent transport belts 3. In the area of the sorting station 5, the receiver device 9 with its belts 10 overlaps the conveyor device 2 so that, in the rearward area, the receiver device 9 viewed along the transport ,...._....__.._........................
BOURQUE & ASSOCIATES, P.A.
direction extends above the reverse idler end of the conveyor device 2.
00[ 211 Glide rails 6 are positioned between the separated transport belts 3 of the conveyor device 2, against whose upper sides the belts 10 of the receiver device 9 are pressed at at least one point at which entry will subsequently be made. The belts 10 have free-standing barbs 10 on their outer sides that do not collide with the glide rails 6 because the glide rails 6 possess longitudinal slots that form hollow cavities 7 below the transport level or surface for the paper and cardboard components being transported while lying flat on it, into which the projecting barbs 11 of the belts 10 of the receiver device 9 may project. Also, the upper sides of the glide rails 6 are at the same level as the outer sides of the upper carrying runs of the transport belts 3, so that the goods placed onto the transport belts 3 which are carried along the transport direction by means of adequate friction may slide along the upper sides of the glide rails 6.
0022 When the mass consisting of paper and cardboard components arrives to the sorting station 5, the barbs 11 on the circulating belts 10 of the receiver device 9 come into play.
The barbs 11 that lie about the circumference of the belts 10 of the receiver device 9 in a row with the slots or hollow cavities 7 of the glide rails 6 of the conve.yor device 2 press the paper BOURQUE & ASSOCIATES, P.A.
components into the above-mentioned hollow cavities 7 without penetrating the flexible or soft paper. In contrast, the cardboard in the cardboard components bridging the hollow cavities 7 is so stiff that the cardboard is pierced by the barbs 11 on the belts 10, whereby the cardboard components are transfixed on one or more of the barbs 11 on the belts 10. The paper drawn into the hollow cavities 7 and not pierced remains on the conveyor device 2, and is transported further by it.
00[ 23l The paper components move off the conveyor device 2 at the end of the conveyor device 2, i.e., along the transport direction after the idler roller 20, and fall onto a exit point 14. In contrast to this, the cardboard components transfixed on the barbs 11 on the belts 10 and adhering to the outer side of the lower carrying runs are passed along and separated using a separation partition 13 that divides the exit point 14 from a exit point 15 for the cardboard components. Above the exit point 15, the belts 10 move past a stripping device 12 with their outer sides facing it. This stripping device 12 strips the cardboard components from the barbs 11 on the belts 10, so that these cardboard components fall off the rear end of the entire device onto the exit point 15.
0024 The two exit points 14 and 15, one for the paper components and the other for the cardboard components, may be configured as supply stations for further transport devices in BOURQUE & ASSOCIATES, P.A.
order to direct the paper and cardboard components along their separate pathways for further use.
O0t 25i It must be ensured that the belts 10 of the receiver device 9 for the cardboard components move in the area of the lower carrying run at the same speed as the upper carrying runs of the transportbelts 3 of the conveyor device 2. The specific embodiment of the invention shown in the illustration offers the advantage of being able to provide a relative velocity between the belts 10 of the receiver device 9 and the transport belts 3 of the conveyor device 2, since the belts 10 gliding on the glide rails 6, whose barbs 11 extend through the longitudinal slot-shaped free spaces 7 of the glide rails 6, need not come into contact with the transport belts 3 of the conveyor device 2.
-0026 The carrying runs of the belts 10 of the receiver device 9 adjacent to the conveyor device 2 overlap in the area of the input side of the sorting station 5 at their inner sides by means of sensor rollers 16. These sensor rollers 16 may pivot against an elastic resistance. For this, the sensor rolls 10 are mounted on a bracket 17 shaped like a rocker on whose first lever arm is positioned on the sensor roller 16. A tensioning spring 18 engages with the second lever arm of the bracket 17, providing the force onto the particular carrying run of the concerned belt 10. The separation between the lower carrying BOURQUE & ASSOCIATES, P.A.
runs of the belts 10 of the receiver device 9 and the transport side of the conveyor device 2 increases along the transport direction away from the sensor rollers 16.
10027 The belts 10 increase their separation from the conveyor device 2 from each sensor roller 16 up to the input point at the idler roller 21 so that a decreasing angle for the goods to be sorted is formed up to the sensor rollers 10 at the input side of the sorting station 5. If the mass to be sorted lying flat is too thick because of foreign objects such as pieces of wood, then at least one of the sensor rollers 16 pivots along with the concerned run of the belt 10 of the receiver device 9 against the force of the spring 18 to the extent that the entire device stops in order to allow the removal of the foreign object without having to gain access into the separated paper and cardboard components.
10028 It remains to provide a special track at the idler rollers 19 and 20 of the conveyor device 2 in order to guide the transport belts 3, since the lateral displacement of the transport belts 3 is ensured by the glide rails 6 on the one hand, and by additional guide rails 23 on the outer sides of the two transport belts 3 positioned at the outside. Likewise, such guides are not required on the idler rollers 21 and 22 for the belts 10 of the receiver device 9. Guide rollers 24 are provided on both sides of the belts 10 for lateral guiding of the belts ..- - ............._._.._...._.....__._......_.._._.
BOURQUE & ASSOCIATES, P.A.
near the concerned idler rollers 21, 22 that are positioned on cross spars 25 of the frame 8.
10029 The device shown in Figure 1 may be modified in a manner shown in Figures 2 through 5. Instead of individual transport belts 3, the conveyor device 2 includes a supply belt 26 that extends over the entire transport width of the conveyor device 2. In the same manner as the transport belts 3, the supply belt 26 is passed over idler rollers, one of which is shown in Figure 2 near the idler roller 20 at the supply end of the conveyor device 2. At the output end of the supply belt 26 is a roller 28 whose upper edge is at the same level as the upper carrying run 27 of the supply belt 26. Also, the axis of the roller 28 is parallel to the idler roller 20 for the supply belt 26, and the separation between the roller 28 and the output end of the supply belt 26 is so small that the mass to be sorted is fed away from the supply belt 20 via the upper edge area of the roller 28. Additionally, the roller 28 may be driven at a circumferential speed corresponding to the supply speed of the conveyor device 2. The roller 28 forms the supply end of the entire conveyor device 2 from which the paper components exit.
10030 The cardboard components are treated differently here too- they are penetrated and transfixed on the barbs 11 of the receiver device 9, as is the case with the embodiment example in Figure 1. This is why the receiver device 9 is configured the ... --.......__ .............._..........._._...._.
BOURQUE & ASSOCIATES, P.A.
same. The difference from the modified embodiment in Figure 1 is that the free spaces 7 are provided at the roller 28 into which the barbs 11 of the belts 10 of the. receiver device 9 extend or penetrate.
00f 311 Additionally, in particular as Figure 4 shows, the roller 28 consists of a large number of coaxially-arranged disks 29 of the same diameter positioned at regular distances along an axis 30. As a result of these distances, a free space 7 exists between two of the named disks 29 that is free for movement in the circumferential direction of the roller 28. On the transport belts 10, the barbs 11 are arranged in a row aligned along the circulation direction, and such a row of barbs is aligned toward one of these free spaces into which the barbs extend. The flexible paper components here are also pressed in by the barbs 11, and drop off the side of the roller 28 facing away from the supply belt 26. In contrast, the cardboard components bridge over the free spaces 7, and are supported correspondingly by the edges of the disk 29 extending in the circumferential direction of the roller 28. Thus, the cardboard components are also transfixed by the barbs 7 on the belts 10 of the receiver device 9 because of their stiffness, and are carried along by the circulating remover device 9 over the exit side of the roller 28 onto which the paper components are tossed.
............ ._._............. ._..__.....
BOURQUE & ASSOCIATES, P.A.
00~ 321 In contrast to Figures 2 - 5, the receiver device 9 may include a larger number of belts 10 or, instead of this, one or two such belts with greater width in order to increase the number of rows of barbs 11 engaging with the circumferential free spaces 7 of the roller 28. Also, the roller 28 may be formed at those points at which the barbs 11 do not engage without a circumferential contour including the free spaces 7.
[0033] Modifications and substitutions by one of ordinary skill in the art are considered to be within the scope of the present invention which is not to be limited except by the claims which follow.
.......------------- __._._._.-........., BOURQUE & ASSOCIATES, P.A.
Claims (16)
1. Procedure to extract cardboard components from bulk waste paper that consists of softer paper components and stiffer cardboard components, in which the paper and cardboard components are transported while lying flat on a conveyor device that is only partially supported using a support gap so that, by means of barbs of a receiver device passing over the unsupported sections of the paper and cardboard components, first, the softer paper components are drawn into free spaces below the non-supported sections of the conveyor device, and are then carried along with it, and second, the cardboard components are penetrated and transfixed, after which the cardboard components are stripped from the barbs on the receiver device at a separate location from the paper components falling off the conveyor device.
2. Machine to extract cardboard components from bulk waste paper that consists of softer paper components and stiffer cardboard components, characterized by a conveyor device (2) that transports flat-lying paper and cardboard components and that ends at a sorting station (5) and includes free spaces (7) in the end area between supported areas and below them, and by a receiver device (9) positioned at the sorting station (5) that is provided with free, projecting barbs (11) that move synchronously with the conveyor device (2), whereby the barbs (11) of the receiver device (9) are so configured that they extend through the lowered free spaces (7) of the conveyor device (2) while pulling along the paper components remaining on the conveyor device (2) and while transfixing and reception of the cardboard components, and further by a stripping device (12) for the cardboard components that is positioned in the motion area of the receiver device (9) and is spatially separated from the exit point for the paper components from the conveyor device (2).
3. Machine as in Claim 2, characterized in that the conveyor device (2) consists of parallel, circulating transport belts (3) that are positioned at such a distance from one another that free spaces (7) are formed between them.
4. Machine as in Claim 3, characterized in that fixed glide rails (6) are positioned at the same height between the transport belts (3) of the conveyor device (2) that include longitudinal slots parallel with the transport belts (3) which form free areas (7).
5. Machine as in one of Claims 1 - 4, characterized in that the conveyor device (2) possesses a flat transport side on top, above which the receiver device (9) is positioned.
6. Machine as in one of Claims 1 - 5, characterized in that the receiver device (9) consists of at least one circulating belt (10) that caries the barbs (11) on its outer sides.
7. Machine as in Claim 6, characterized in that at least one belt (10) of the receiver device (9) overlaps the conveyor device (2) in the area of the sorting station (5), and moreover is extended along the transport direction.
8. Machine as in Claim 7, characterized in that a exit point (14) for the paper components being ejected from the conveyor device (2) is located below the extension of the receiver device (9) extending above the conveyor device (2).
9. Machine as in Claim 8, characterized in that a second exit point (15) separate from the first exit point (14) is located below the extension of the receiver device (9) for the cardboard components stripped from the receiver device (9), and correspondingly, the stripper device (12) is positioned on the underside of the receiver device (9) extending above the conveyor device (2).
10. Machine as in one of Claims 6 - 9, characterized in that, viewed along the transport device, at least one belt (10) of the receiver device (9) with its run facing the conveyor device (2) passes under a sharp angle to the end of the conveyor device (2).
11. Machine as in one of Claims 5 - 10, characterized in that, in the area of the sorting station (5), the inner side of the run facing the conveyor device (2) of at least one belt (10) of the receiver device (9) is provided with a sensor roller (16) that is mounted so that it may pivot against the force of a spring (18), and by means of which the drive of the conveyor device (2) and of the receiver device (9) may be stopped as a result of a pre-determined deflection.
12. Machine as in Claim 11, characterized in that the run of at least one belt (10) of the receiver device (9) near the conveyor device (2) diverges from the sensor roller (16) relative to the end of the conveyor device (2) for the purpose of forming an intake angle.
13. _Machine as in one of Claims 4 - 12, characterized in that the conveyor device (2) includes a supply belt (26) covering the entire transport path, to which a roller (28) forming the end of the conveyor device (2) connects along the transport direction, against which the free spaces (7) receiving the barbs (11) of the receiver device (9) are formed.
14. _Machine as in Claim 13, characterized in that the roller (28) with its upper area is positioned at the same height as the upper side of the upper carrying run (27) of the supply belt (26).
15. _Machine as in Claim 13 or 14, characterized in that the roller (28) consists of coaxial disks (29) that form a free space (7) between each pair of them and are separated by a specific distance.
16. _Machine as in one of Claims 13 - 15, characterized in that the roller (28) is driven at a circulation speed synchronously with the supply speed of the supply belt (26).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10143897A DE10143897B4 (en) | 2001-09-07 | 2001-09-07 | Process and machine for separating the cardboard parts from a waste paper batch |
| DK02017176T DK1291092T3 (en) | 2001-09-07 | 2002-07-31 | Method and Machine for Separating Cardboard Parts from a Recycled Paper Blend |
| DE50208686T DE50208686D1 (en) | 2001-09-07 | 2002-07-31 | Method and machine for rejecting the paper parts from a waste paper mixture |
| ES02017176T ES2274932T3 (en) | 2001-09-07 | 2002-07-31 | PROCEDURE AND MACHINE TO SEPARATE CARTON PARTS FROM A USED PAPER MIX. |
| EP02017176A EP1291092B1 (en) | 2001-09-07 | 2002-07-31 | Method and device for removing cardboard from a wastepaper mixture |
| AT02017176T ATE345175T1 (en) | 2001-09-07 | 2002-07-31 | METHOD AND MACHINE FOR SEPARATING THE CARDBOARD PARTS FROM A WASTE PAPER MIXTURE |
| CA002411833A CA2411833C (en) | 2001-09-07 | 2002-11-14 | Procedure and machine to separate cardboard components from bulk waste paper |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10143897A DE10143897B4 (en) | 2001-09-07 | 2001-09-07 | Process and machine for separating the cardboard parts from a waste paper batch |
| CA002411833A CA2411833C (en) | 2001-09-07 | 2002-11-14 | Procedure and machine to separate cardboard components from bulk waste paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2411833A1 CA2411833A1 (en) | 2004-05-14 |
| CA2411833C true CA2411833C (en) | 2009-06-23 |
Family
ID=32963071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002411833A Expired - Lifetime CA2411833C (en) | 2001-09-07 | 2002-11-14 | Procedure and machine to separate cardboard components from bulk waste paper |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1291092B1 (en) |
| AT (1) | ATE345175T1 (en) |
| CA (1) | CA2411833C (en) |
| DE (2) | DE10143897B4 (en) |
| DK (1) | DK1291092T3 (en) |
| ES (1) | ES2274932T3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005017943B4 (en) * | 2005-04-18 | 2008-09-11 | Hartner Maschinen- & Fahrzeugbau GbR (vertretungsberechtigter Gesellschafter: Helmut Hartner, 89441 Obermedlingen) | Sotiervorrichtung for sorting bulk material |
| DE102005036118B3 (en) * | 2005-08-01 | 2006-08-24 | A. Hirschenkrämer Transportanlagenbau Hermann Thießen GmbH | Device for separating flexible paper part from relatively stiff cardboard part has spikes with outer section (10) on its free end and internal section connected with carrier mechanism |
| NL1030406C2 (en) * | 2005-11-14 | 2007-05-15 | Wagensveld B V | Device for separating paper and cardboard. |
| EP2111927A1 (en) * | 2008-04-25 | 2009-10-28 | Wagensveld BV | Device for separating paper and cardboard |
| EP2258489B1 (en) | 2009-06-04 | 2011-11-16 | Grumbach GmbH & Co. KG | Device for parcelling out cardboard sections |
| DE102009056501A1 (en) | 2009-12-02 | 2011-06-09 | Zeno - Zerkleinerungs Maschinenbau Norken G.M.B.H. | Machine for separating e.g. rigid paper parts from waste paper mixture for manufacturing newspaper, has control device controlling conveying device and sensor device such that control device exhibits different circumferential speeds |
| DE102010005338A1 (en) | 2010-01-21 | 2011-07-28 | ZENO - Zerkleinerungs Maschinenbau Norken G.m.b.H., 57629 | Machine for selecting cardboard portions from waste paper mixture during recycling process in paper mill to manufacture newsprint, has pickup device with prickers penetrating through gaps, where device is arranged below back pressure device |
| US8708156B2 (en) | 2011-12-06 | 2014-04-29 | Grumbach GmbH & Co., KG | Device for seperating cardboard components |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE637056C (en) * | 1934-11-24 | 1936-10-22 | Jean Etienne Felix Cambessedes | Processing plant for household garbage, in particular sorting plant arranged on a vehicle |
| DE4207398C1 (en) * | 1992-03-09 | 1993-09-16 | Urban Dipl.-Ing. 1000 Berlin De Stricker | |
| FR2725641A1 (en) * | 1994-10-14 | 1996-04-19 | Lenoir Raoul Ets | System for sorting industrial or household wastes esp. plastics, paper, carton etc |
-
2001
- 2001-09-07 DE DE10143897A patent/DE10143897B4/en not_active Expired - Lifetime
-
2002
- 2002-07-31 DK DK02017176T patent/DK1291092T3/en active
- 2002-07-31 EP EP02017176A patent/EP1291092B1/en not_active Expired - Lifetime
- 2002-07-31 ES ES02017176T patent/ES2274932T3/en not_active Expired - Lifetime
- 2002-07-31 AT AT02017176T patent/ATE345175T1/en active
- 2002-07-31 DE DE50208686T patent/DE50208686D1/en not_active Expired - Lifetime
- 2002-11-14 CA CA002411833A patent/CA2411833C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1291092A3 (en) | 2003-07-02 |
| EP1291092A2 (en) | 2003-03-12 |
| EP1291092B1 (en) | 2006-11-15 |
| DE50208686D1 (en) | 2006-12-28 |
| DE10143897A1 (en) | 2003-04-10 |
| ATE345175T1 (en) | 2006-12-15 |
| CA2411833A1 (en) | 2004-05-14 |
| DK1291092T3 (en) | 2007-03-26 |
| ES2274932T3 (en) | 2007-06-01 |
| DE10143897B4 (en) | 2004-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20221114 |