NL2017777B1 - An assembly for producing a semi-finished product from newspapers as well as a corresponding method. - Google Patents

An assembly for producing a semi-finished product from newspapers as well as a corresponding method. Download PDF

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Publication number
NL2017777B1
NL2017777B1 NL2017777A NL2017777A NL2017777B1 NL 2017777 B1 NL2017777 B1 NL 2017777B1 NL 2017777 A NL2017777 A NL 2017777A NL 2017777 A NL2017777 A NL 2017777A NL 2017777 B1 NL2017777 B1 NL 2017777B1
Authority
NL
Netherlands
Prior art keywords
newspaper
individual
sheets
sheet
stack
Prior art date
Application number
NL2017777A
Other languages
Dutch (nl)
Inventor
Van Den Brandt Joost
Albertus Leonardus Van Den Brandt Pieter
Willem Jozef Letterlé Roy
Van Raadshooven Arjan
Original Assignee
Newspaperwood B V
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Newspaperwood B V filed Critical Newspaperwood B V
Priority to NL2017777A priority Critical patent/NL2017777B1/en
Priority to PCT/NL2017/050729 priority patent/WO2018088902A1/en
Application granted granted Critical
Publication of NL2017777B1 publication Critical patent/NL2017777B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0272—Mixing the material with binding agent by bringing the material into contact with a rotating roll provided with a layer of binding agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/04—Attaching together sheets, strips or webs; Reinforcing edges by exclusive use of adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B32B38/1858—Handling of layers or the laminate using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B32B38/1866—Handling of layers or the laminate conforming the layers or laminate to a convex or concave profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

An assembly for producing a semi-finished product from newspapers, said assembly comprising a storage platform, adhesive applicator means, a stacking preform, newspaper transportation means, a compacting tool and a control unit for controlling said newspaper transportation means, said adhesive applicator means and said compacting tool as well as a corresponding method.

Description

Title: An assembly for producing a semi-finished product from newspapers as well as a corresponding method.
Description
The present invention is related to an assembly for producing a semi-finished product from newspapers.
Many assemblies for producing semi-finished products from regular paper sheets are already known in the art. One of those assemblies is directed to a binder device, in which a stacked pile of paper sheets are perforated, either individually or in the stack, and are subsequently binded together. Here, each of the paper sheets may be removed from the stack of paper sheets individually, may subsequently be perforated and transported to a binder. The binder is actuated once each of the sheets in the stack have been perforated and have been transported to the binder such that a booklet or the like is created. A drawback of the known assemblies in the art, is that they are not well equipped for handling newspaper sheets.
It is therefore an object of the present invention to provide for an assembly for producing a semi-finished product from newspapers, as well as a corresponding method, which is able to cope with newspaper sheets.
In order to achieve that object, the invention provides, in a first aspect thereof, in an assembly for producing a semi-finished product from newspapers, said assembly comprising: a storage platform for storing a plurality of individual newspaper sheets; adhesive applicator means for applying an adhesive to an individual newspaper sheet; a stacking preform arranged for receiving and stacking said individual newspaper sheets having said applied adhesive, wherein said preform has a substantially convex form, wherein said individual newspapers are to be received on a convex side of said preform; newspaper transportation means arranged for transporting an individual newspaper sheet from said stored plurality of individual newspaper sheets on said storage platform via said adhesive applicator means to said stacking preform, wherein said transportation means are arranged to position said individual newspaper sheet on top of said convex side of said stacking preform, wherein said adhesive applicator means are arranged to apply said adhesive to an individual newspaper sheet during said transporting thereof from said storage platform to said stacking preform; a compacting tool for compacting said stack of individual newspaper sheets on said stacking preform, wherein said compacting tool has a substantially concave form complementary to said convex form of said stacking preform thereby forming a semi-finished product from newspapers; a control unit for controlling said newspaper transportation means, said adhesive applicator means and said compacting tool.
It was the insight of the inventors that individual newspaper sheets should be handled differently compared to paper sheets. Individual newspaper sheets are much thinner compared to regular paper sheets. The weight of a newspaper sheet varies, typically, from 40 to 65 grams per square meter. The weight of regular paper sheets is typically much higher, usually above 100 grams per square meter. Newspaper sheets are usually made from mechanical pulp. That is pulp which is obtained by grinding, or milling, woodchips. Based on the above, the inventor has found that the handling of newspaper sheets is much more delicate compared to regular sheets.
The inventors have found that the stacking preform, arranged for receiving and stacking said individual newspaper sheets having said applied adhesive, should have a substantially convex form. This ensures that the newspaper sheets stay in their place, i.e. it simplifies the aligning of the sheets with respect to each other.
In the context of the present invention, the plurality of individual newspaper sheets should be aligned with respect to each other such that the newspaper transportation means handle each of the individual newspaper sheets in the same way. In order to do so, the storage platform may be moveable in the vertical direction to compensate for each individual newspaper sheet that has been taken from the stack. As such, the transportation means always face the plurality of individual newspaper sheets in the same way.
The adhesive applicator means, for applying an adhesive to an individual newspaper sheet, are arranged to uniformly distribute the adhesive over the newspaper sheet. This ensures that the stacked said individual newspaper sheets on the stacking preform stack up in a same way. That is, the form of the stacking preform is substantially maintained by the stack of the individual newspaper sheets on top thereof.
The newspaper transportation means transport individual newspaper sheets from the storage platform to the stacking preform. As such, the newspaper transportation means grip, pick or take a single, individual, newspaper sheet from the plurality of individual newspaper sheets at the storage platform, move that sheet to the stacking preform, and, subsequently, release the individual newspaper sheet at the stacking preform in such a way that each of the released individual newspaper sheets are aligned with respect to each other.
In accordance with the present invention, the assembly may be used for producing a semi-finished product from newspapers. The assembly may also be used for producing a semi-finished product from any other type of paper, such as regular sheet paper.
In an example, said assembly further comprises: a pressing unit arranged for pressing one to ten newly stacked newspaper sheets on said stacking preform.
The pressing unit is thus arranged to make sure that each newspaper sheet is pressed, at least a little bit, to the stack of newspaper sheets. This ensures that the curvature of the stacking preform is maintained in the curvature of the stack of newspaper sheets. The pressing unit further ensures that any air between the newspaper sheets is pushed away and that the adhesive is distributed fairly uniform over a sheet.
In an example, the adhesive applicator means comprise: two parallel and adjacent to each other orientated elongated rolls arranged to rotate along its elongated axis, wherein said adhesive is applied to an individual newspaper sheet by contacting said individual newspaper sheet with one of said two rolls during transportation thereof, wherein a contact speed of said one of said two rolls deviates from a speed at which said newspaper transportation means transport said individual newspaper sheet, wherein said deviation is between 0,1% - 6% of said contact speed, preferably between 3% - 5%. Typically, and preferably, the newspaper sheets are transported a bit faster compared to the speed of said one of said two rolls.
The advantage of using two elongated rolls adjacent to each other for applying the adhesive, is that the adhesive is applied substantially uniformly over the newspaper sheet. The deviation in speed between the contact speed of the one of the two rolls and the speed at which the newspaper transportation means transport the individual newspaper sheet should not be zero, but should also not be above 6% for best performance. This ensures that only a thin layer of adhesive is applied to the sheet, thereby reducing the risk of any deformations in the newspaper sheet.
In an alternative example, the adhesive applicator means comprise: adhesive spraying means comprising a plurality of nozzles, wherein said adhesive is applied to said individual newspaper sheet by spraying said adhesive, using said plurality of nozzles, during transportation of the individual newspaper sheet by the newspaper transportation means.
The advantage of this example is that a predefined amount of adhesive can be selected, which predefined amount of adhesive is to be applied to a single sheet of a newspaper.
In an example, a cross section of said stacking preform resembles a circular segment of a circle, wherein a chord length of said circular segment is between 50% - 100%, preferable between 65% - 85%, of a diameter of said circle.
As mentioned above, the shape of the stacking preform is of importance for correctly aligning the newspaper sheets on top of each other. The inventor has found that a chord length of the circular segment 50% - 100%, preferable between 65% - 85%, of a diameter of said circle represented by said stacking preform, provides good results.
In a further example, the newspaper transportation means comprise: an elongated pickup bar comprising a plurality of suction nozzles, wherein said elongated pickup bar is arranged to pick up said individual newspaper sheet from said stored plurality of individual newspaper sheets by activating said plurality of suction nozzles. The elongated pickup bar may further comprise clamping means for clamping an individually picked up newspaper sheets such that it can be reliably transported by the newspaper transportation means.
More specifically, the elongated pickup bar may be arranged to pivot around its elongated axis, wherein said newspaper transportation means are arranged to: pivot said elongated pickup bar in such a way that said suction nozzles are oriented perpendicular to said individual newspaper sheet for picking up said individual newspaper sheet, and to pivot said elongated pickup bar in such a way that said suction nozzles are oriented perpendicular to a surface of said stack of individual newspaper sheets to position said single newspaper sheet on top thereof.
The advantage of this example is that the robustness of the assembly is improved. That is, this example ensures that the individual newspaper sheets are robustly gripped, and released, by the newspaper transportation means.
In another example, the control unit is arranged to control said assembly in such a way that said compacting tool compresses said stack of newspaper sheets, wherein an amount of newspaper sheets in said stack is between 50 - 400 sheets, preferably between 100 - 300 sheets.
The above entails that it is not required to compress the newspaper sheets in the stack each time a sheet is placed on top of the stack. It is sufficient that the stack of newspaper sheets is compressed when the amount of newspaper sheets in the stack is between 50 - 400 sheets. It is possible to compress the stack of newspaper sheets sufficiently, even with that many newspaper sheets.
In an another example, the assembly further comprises at least one air blower, oriented above said stacking preform, wherein said at least one air blower is arranged to blow air onto said stack of individual newspaper sheets for holding said individual newspaper sheets in place on said stacking preform.
The advantage of this example is that the stack of newspaper sheets on the stacking preform is rigid. That is, by blowing air on top of the stack, the top sheets of the stack remain on their place.
In a second aspect, the invention provides for a method of producing a semi-finished product from newspapers, said method using an assembly according to any of the previous examples, said method comprising the steps of: storing a plurality of individual newspaper sheets on said storage platform; transporting, by said newspaper transportation means, an individual newspaper sheet from said stored plurality of individual newspaper sheets on said storage platform via said adhesive applicator means to said stacking preform applying, during said transporting, by said adhesive applicator means, said adhesive to said individual newspaper sheet; positioning, by said transportation means, said individual newspaper sheet on top of said convex side of said stacking preform; compacting, by said compacting tool, said stack of individual newspaper sheets on said stacking preform thereby forming a semi-finished product from newspapers.
The expressions, i.e. the wording, of the different aspects comprised by the assembly and/or the method according to the present invention should not be taken literally. The wording of the aspects is merely chosen to accurately express the rationale behind the actual function of the aspects.
In accordance with the present invention, different aspects applicable to the above mentioned examples of the assembly, including the advantages thereof, correspond to the aspects which are applicable to method according to the present invention.
In an example, the adhesive applicator means comprise two parallel and adjacent to each other orientated elongated rolls arranged to rotate along its elongated axis, wherein said adhesive is applied to an individual newspaper sheet by contacting said individual newspaper sheet with one of said two rolls during transportation thereof, wherein said method comprises the steps of: - rotating said one of said two rolls such that a contact speed of said one of said two rolls deviates from a speed at which said newspaper transportation means transport said individual newspaper sheet, wherein said deviation is between 0,1% - 6% of said contact speed, preferably between 3% - 5%.
In an alternative example, the adhesive applicator means comprise adhesive spraying means comprising a plurality of nozzles, wherein said method comprises the step of: applying said adhesive to said individual newspaper sheet by spraying said adhesive, using said plurality of nozzles, during transportation of the individual newspaper sheet by the newspaper transportation means.
In a further example, the newspaper transportation means comprise an elongated pickup bar comprising a plurality of suction nozzles, wherein said method comprises the step of: - picking up said individual newspaper sheet from said stored plurality of individual newspaper sheets by activating said plurality of suction nozzles.
In another example, the elongated pickup bar is arranged to pivot around its elongated axis, wherein said method further comprises the steps of: pivoting, by said newspaper transportation means, said elongated pickup bar in such a way that said suction nozzles are oriented perpendicular to said individual newspaper sheet for picking up said individual newspaper sheet, and to pivoting, by said newspaper transportation means, said elongated pickup bar in such a way that said suction nozzles are oriented perpendicular to a surface of said stack of individual newspaper sheets to position said single newspaper sheet on top thereof.
In a further example, the assembly further comprises at least one air blower, oriented above said stacking preform, said method further comprising the step of: blowing, by said at least one air blower, air onto said stack of individual newspaper sheets for holding said individual newspaper sheets in place on said stacking preform.
In yet another example, the method further comprises the step of: cutting said semi-finished product from newspapers to layers of predefined thickness.
The above-mentioned and other features and advantages of the invention will be best understood from the following description referring to the attached drawings. In the drawings, like reference numerals denote identical parts or parts performing an identical or comparable function or operation.
Brief description of the drawings
Figure 1 is a schematic diagram of an assembly for producing a semi-finished product from newspapers according to the present invention.
Figure 2 is a flow chart of a method of producing a semi-finished product from newspapers according to the present invention.
Detailed description
Figure 1 is a schematic diagram of an assembly 1 for producing a semi-finished product from newspapers according to the present invention. The assembly produces as semi-finished product as at least one finishing step is to be performed to finalize the product. That it, the assembly 1 construes a relatively large, but compact, stack of individual newspaper sheets glued together. In order to obtain small layers of newspaper material, the stack of individual newspaper sheets it to be cut into slices. Each slice of newspaper material, for example having a thickness of 0.5mm - 2mm, is sufficiently rigid and robust to be used for a variety of applications.
The assembly 1 comprises a storage platform 7 for storing a plurality of individual newspaper sheets 5. The plurality of newspaper sheets 5 are referred to as individual newspaper sheets as sheets are not stapled, or binded, together. Each newspaper sheet can be removed separately, i.e. individually, from the stack comprising the plurality of individual newspaper sheets 5. As mentioned before, the handling of newspaper sheets 5 is, in practice, much more delicate compared to regular paper sheets. As such, taking a single, individual, sheet from the plurality of individual newspaper sheets 5 is to be performed much more accurately, and much more steady.
In order to create the same circumstances each time an individual newspaper sheet is to be taken from the plurality of newspaper sheets 5, the platform 7 comprises translation means 6 for moving the platform 7 in a vertical direction to compensate for each, or for a couple of, individual newspaper sheets that have been taken from the stack of plurality of newspaper sheets 5. As such, the top newspaper sheet, i.e. the sheet on top of the stack of the plurality of newspaper sheets 5 is then always oriented at the same height level, irrespective of the amount of newspaper sheets that have already been taken from the stack of the plurality of newspaper sheets 5. The translation means 6 may be controlled by the control unit 14.
The assembly 1 further comprises adhesive applicator means 15, 3, 4 for applying an adhesive to an individual newspaper sheet. In order to improve the binding of two newspaper sheets to each other, the applied adhesive to an individual newspaper sheet should be distributed as uniformly as possible, and the thickness of the layer of the applied adhesive should be relatively small. That is, only a small amount of adhesive is to be used for an individual newspaper sheet.
In the present situation, the adhesive applicator means 15, 3, 4 comprise two parallel and adjacent to each other orientated elongated rolls 3, 4 arranged to rotate 10 along its elongated axis, wherein said adhesive is applied to an individual newspaper sheet by contacting said individual newspaper sheet with one of said two rolls during transportation thereof, wherein a contact speed of said one of said two rolls 3, 4 deviates from a speed at which said newspaper transportation means 16 transport said individual newspaper sheet, wherein said deviation is between 0,1% - 6% of said contact speed, preferably between 3% - 5%.
In order to efficiently apply the adhesive to an individual newspaper sheet, the inventors have found that the contact speed of the roll 4, i.e. the speed of the roll 4 at its outer surface, should deviate from the speed at which the individual layer passes that roll 4. As only a small amount of adhesive is to be applied, i.e. a small layer of adhesive, the deviation should be made relatively small. Practical trials have revealed that a deviation between 0,1% - 6%, more specifically a deviation between 3% - 5% provides improved results.
According to figure 1, the adhesive is applied to the rolls 3, 4 via the adhesive providing means 15, which adhesive providing means 15 provide the adhesive in between the two rolls 3, 4. A stacking preform 9 is provided within the assembly 1, which stacking preform 9 is used for receiving and stacking the individual newspaper sheets having the applied adhesive. As shown in figure 1, the preform 9 has a substantially convex form, wherein the newspapers are to be received on the convex side 18 of the preform 9. The convex shape of the preform 9 ensures that the individual newspaper sheets received on the preform 9 stay on their place. That is, the received newspaper sheets stay aligned with respect to each other on the stacking preform 9.
The assembly 1 further comprises newspaper transportation means 16, 2 for transporting an individual newspaper sheet from the stored plurality of individual newspaper sheets 5 on the storage platform 7 via the adhesive applicator means 15, 3, 4 to the stacking preform 9, i.e. in the transport direction 11. The transportation 16, 2 are arranged to position the individual newspaper sheet on top of the convex side 18 of the stacking preform 9.
In the present situation, the newspaper transportation means 16 are construed as a an elongated pickup 16 bar comprising a plurality of suction nozzles 8, wherein said elongated pickup 16 bar is arranged to pick up said individual newspaper sheet from said stored plurality of individual newspaper sheets 5 by activating said plurality of suction nozzles 8. That is, the suction force by the plurality of suction nozzles 8 ensures that a single, individual, newspaper sheet is lifted up from the plurality of newspaper sheets 5.
In order to improve the robustness and accuracy of the working principle of the assembly 1, the inventor has found that the elongated pickup bar 16 is to pivot around its elongated axis via pivoting means 17.
The control unit 14 may control the elongated pickup bar 16 in such a way that the elongated pickup bar 16 is pivoted such that said suction nozzles 8 are oriented perpendicular to said individual newspaper sheet of said plurality of newspaper sheets 5 for picking up said individual newspaper sheet, and in such a way that the suction nozzles 8 are oriented perpendicular to the surface of the stack of individual newspaper sheets to position the single newspaper sheet on top thereof. That is, in case no newspaper sheets have been laid down on the stacking preform 9, the nozzles should be pivoted in such a way that they are perpendicular to the convex surface of the stacking preform. In case a plurality of individual newspaper sheets has already been received by the stacking preform 9, the shape of the top newspaper sheet should be used for orienting the nozzles 8 perpendicular thereto.
The above can be realised, for example, by using camera’s and/or lasers for determining the mentioned perpendicular direction and for providing the measurements to the control unit 14. The control unit 14 may, based on these measurement, control the pivoting movement of the elongated bar 16.
As shown in figure 1, the adhesive is applied during transportation of an individual newspaper sheet from the plurality of newspaper sheets 5 to the stacking preform 9. That is, during transportation thereof, the individual newspaper sheets contact the second roll 4, rotating 10 along its elongated axis, via which contact adhesive is transferred between the roll 4 and the individual newspaper sheet.
The assembly further comprises a compacting tool 12 for compacting said stack of individual newspaper sheets on said stacking preform 9, wherein said compacting tool 12 has a substantially concave form 19 complementary to said convex form 18 of said stacking preform 9 thereby forming a semi-finished product from newspapers. A control unit 17 is provided for controlling said newspaper transportation means 2, 16, said adhesive applicator means 15, 3, 4 and said compacting tool 12.
Figure 2 is a flow chart 51 of a method of producing a semi-finished product from newspapers according to the present invention, the method using an assembly according to any of the examples provided above, said method comprising the steps of: storing 52 a plurality of individual newspaper sheets on said storage platform; transporting 53, by said newspaper transportation means, an individual newspaper sheet from said stored plurality of individual newspaper sheets on said storage platform via said adhesive applicator means to said stacking preform applying 54, during said transporting, by said adhesive applicator means, said adhesive to said individual newspaper sheet; positioning 55, by said transportation means, said individual newspaper sheet on top of said convex side of said stacking preform; compacting 56, by said compacting tool, said stack of individual newspaper sheets on said stacking preform thereby forming a semi-finished product from newspapers.
The present invention is not limited to the embodiments as disclosed above, and can be modified and enhanced by those skilled in the art beyond the scope of the present invention as disclosed in the appended claims without having to apply inventive skills.

Claims (16)

1. Samenstel voor het produceren van een half afgemaakt product van kranten, waarbij het samenstel omvat: een opslagplatform voor het opslaan van een veelheid individuele krantvellen; kleefmiddeltoepassingsmiddelen voor het toepassen van een kleefmiddel aan een individueel krantvel; een stapelvoorvorm ingericht voor het ontvangen en stapelen van de individuele krantvellen met het toegepaste kleefmiddel, waarin de voorvorm een substantiële convexe vorm heeft, waarin de individuele kranten ontvangen dienen te worden op een convexe zijde van de voorvorm; kranttransportmiddelen ingericht voor het transporteren van een individueel krantvel van de opgeslagen veelheid van individuele krantvellen op het opslagplatform via de kleefmiddeltoepassingsmiddelen naar de stapelvoorvorm, waarin de transportmiddelen zijn ingericht voor het positioneren van het individuele krantvel op de convexe zijde van de stapelvoorvorm, waarin de kleefmiddeltoepassingsmiddelen zijn ingericht voor het toepassen van het kleefmiddel op een individueel krantvel gedurende het transport daarvan van het opslagplatform naar de stapelvoorvorm; samenperswerktuig voor het samenpersen van de stapel van individuele krantvellen op de stapelvoorvorm, waarin het samenperswerktuig een substantiële concave vorm heeft die complementair is aan de convexe vorm van de stapelvoorvorm, daarbij het vormen van een half afgemaakt product van kranten; een stuureenheid voor het sturen van de kranttransportmiddelen, de kleefmiddeltoepassingsmiddelen en het samenperswerktuig.An assembly for producing a semi-finished newspaper product, the assembly comprising: a storage platform for storing a plurality of individual newspaper sheets; adhesive application means for applying an adhesive to an individual newspaper sheet; a stacking preform adapted to receive and stack the individual newspaper sheets with the applied adhesive, wherein the preform has a substantial convex shape, wherein the individual newspapers are to be received on a convex side of the preform; newspaper transport means adapted to transport an individual newspaper sheet from the stored plurality of individual newspaper sheets on the storage platform via the adhesive application means to the stack preform, wherein the transport means are arranged to position the individual newspaper sheet on the convex side of the stack preform, wherein the adhesive application means are adapted to apply the adhesive to an individual newspaper sheet during its transportation from the storage platform to the stack preform; compression tool for compressing the stack of individual newspaper sheets on the stack preform, wherein the compression tool has a substantial concave shape that is complementary to the convex shape of the stack preform, thereby forming a semi-finished product from newspapers; a control unit for controlling the newspaper transport means, the adhesive application means and the compression tool. 2. Samenstel volgens conclusie 1, waarin het samenstel verder omvat: een drukeenheid ingericht voor het drukken van één tot tien nieuw gestapelde krantvellen op de stapelvoorvorm.An assembly according to claim 1, wherein the assembly further comprises: a printing unit adapted to print one to ten newly stacked newspaper sheets on the stack preform. 3. Samenstel volgens een van de voorgaande conclusies, waarin de kleefmiddeltoepassingsmiddelen omvatten: twee parallel en naast elkaar georiënteerde uitgestrekte rollen ingericht voor het roteren over diens uitgestrekte as, waarin het kleefmiddel is toegepast op een individueel krantvel door het contacteren van het individuele krantvel met een of meer van de twee rollen gedurende het transport daarvan, waarin een contactsnelheid van de ene van de twee rollen afwijkt van een snelheid op welke de kranttransportmiddelen het individuele krantvel transporteert, waarin de afwijking tussen 0,1% - 6% van de contactsnelheid, bij voorkeur tussen 3% - 5% is.An assembly according to any one of the preceding claims, wherein the adhesive application means comprises: two parallel rollers oriented parallel to each other and arranged for rotation about its extended axis, wherein the adhesive is applied to an individual newspaper sheet by contacting the individual newspaper sheet with a or more of the two rollers during transport thereof, wherein a contact speed of one of the two rollers deviates from a speed at which the newspaper transport means transports the individual newspaper sheet, wherein the deviation between 0.1% - 6% of the contact speed, at is preferably between 3% and 5%. 4. Samenstel volgens een van de conclusies 1-2, waarin de kleefmiddeltoepassingsmiddelen omvatten: kleefmiddelsproeimiddelen omvattende een veelheid van ventielen, waarin het kleefmiddel is toegepast op het individuele krantvel door het sproeien van het kleefmiddel, gebruikmakende van de veelheid van ventielen, gedurende transport van het individuele krantvel door de kranttransportmiddelen.An assembly according to any of claims 1-2, wherein the adhesive application means comprises: adhesive spray means comprising a plurality of valves, wherein the adhesive is applied to the individual newspaper sheet by spraying the adhesive using the plurality of valves during transport of the individual newspaper sheet through the newspaper transport means. 5. Samenstel volgens een van de voorgaande conclusies, waarin een doorsnede van de stapelvoorvorm een cirkelsegment van een cirkel voorstelt, waarin een koordlengte van het cirkelsegment tussen 50% - 100%, bij voorkeur tussen 65% - 85%, van een diameter van de cirkel is.Assembly as claimed in any of the foregoing claims, wherein a cross-section of the stacking preform represents a circle segment of a circle, wherein a cord length of the circle segment is between 50% - 100%, preferably between 65% - 85%, of a diameter of the circle is. 6. Samenstel volgens een van de voorgaande conclusies, waarin de kranttransportmiddelen omvatten: een uitgestrekte oppikbar omvattende een veelheid van zuigventielen, waarin de uitgestrekte oppikbar ingericht is voor het oppikken van het individuele krantvel van de opgeslagen veelheid van individuele krantvellen door het activeren van de veelheid van zuigventielen.An assembly according to any one of the preceding claims, wherein the newspaper transport means comprises: an extended pick-up bar comprising a plurality of suction valves, wherein the extended pick-up bar is adapted to pick up the individual newspaper sheet from the stored plurality of individual newspaper sheets by activating the plurality of suction valves. 7. Samenstel volgens conclusie 6, waarin de uitgestrekte oppikbar is ingericht om te zwenken over diens uitgestrekte as, waarin de kranttransportmiddelen zijn ingericht voor het: zwenken van de uitgestrekte oppikbar op een dusdanige manier dat de zuigventielen loodrecht georiënteerd zijn ten opzichte van het individuele krantvel voor het oppikken van het individuele krantvel, en voor het zwenken van de uitgestrekte oppikbar op een dusdanige manier dat de zuigventielen loodrecht georiënteerd zijn ten opzichte van een oppervlak van de stapel van individuele krantvellen voor het positioneren van het enkele krantvel daar bovenop.7. Assembly as claimed in claim 6, wherein the extended pick-up bar is adapted to pivot about its extended axis, wherein the newspaper transport means are arranged for: pivoting the extended pick-up bar in such a way that the suction valves are perpendicular to the individual newspaper sheet for picking up the individual newspaper sheet, and for pivoting the extended picking bar in such a way that the suction valves are perpendicular to a surface of the stack of individual newspaper sheets for positioning the single newspaper sheet on top of it. 8. Samenstel volgens een van de voorgaande conclusies, waarin de stuureenheid is ingericht voor het sturen van het samenstel op een dusdanige manier dat het samenperswerktuig de stapel van krantenvellen samenperst, waarin een hoeveelheid van krantvellen in de stapel tussen 300 - 700 vellen, bij voorkeur tussen 400 - 600 vellen is.An assembly according to any one of the preceding claims, wherein the control unit is adapted to control the assembly in such a way that the compression tool compresses the stack of newspaper sheets, wherein an amount of newspaper sheets in the stack is between 300 - 700 sheets, preferably between 400 and 600 sheets. 9. Samenstel volgens een van de voorgaande conclusies, waarin het samenstel verder omvat ten minste een luchtblaasorgaan, gelegen boven de stapelvoorvorm, waarin het ten minste ene luchtblaasorgaan is ingericht voor het blazen van lucht op de stapel van individuele krantvellen voor het behouden van de individuele krantvellen op diens plaats op de stapelvoorvorm.An assembly according to any one of the preceding claims, wherein the assembly further comprises at least one air blower, located above the stack preform, wherein the at least one air blower is adapted to blow air onto the stack of individual newspaper sheets to retain the individual newspaper sheets in place on the stacking preform. 10. Werkwijze voor het produceren van een half afgemaakt product van kranten, welke werkwijze gebruikmaakt van een samenstel volgens een van de voorgaande conclusies, welke werkwijze de stappen omvat van het: opslaan van een veelheid van individuele krantvellen op het opslagplatform; transporteren, door de kranttransportmiddelen, van een individueel krantvel van de opgeslagen veelheid van individuele krantvellen op het opslagplatform via de kleefmiddeltoepasmiddelen naar de stapelvoorvorm; toepassen, gedurende het transporteren, door de kleefmiddeltoepasmiddelen, van het kleefmiddel aan het individuele krantvel; positioneren, door de transportmiddelen, van het individuele krantvel boven op de convexe zijde van de stapelvoorvorm; samenpersen, door het samenperswerktuig, van de stapel van individuele krantvellen op de stapelvoorvorm, daarbij het vormen van een half afgemaakt product van kranten.A method of producing a semi-finished newspaper product, which method utilizes an assembly according to any of the preceding claims, which method comprises the steps of: storing a plurality of individual newspaper sheets on the storage platform; transporting, by the newspaper transport means, an individual newspaper sheet of the stored plurality of individual newspaper sheets on the storage platform via the adhesive application means to the stack preform; applying, during the transport through the adhesive application means, the adhesive to the individual newspaper sheet; positioning, by the conveying means, the individual newspaper sheet on top of the convex side of the stack preform; compressing, by the compression tool, the stack of individual newspaper sheets onto the stack preform, thereby forming a semi-finished product from newspapers. 11. Werkwijze van het produceren van een half afgemaakt product van kranten volgens conclusie 10, waarin de kleefmiddeltoepasmiddelen omvatten twee parallelle en naast elkaar georiënteerde uitgestrekte rollen ingericht voor het roteren over diens uitgestrekte as, waarin het kleefmiddel is toegepast op een individueel krantvel door het contacteren van het individuele krantvel met een van de twee rollen gedurende het transport daarvan, waarin de werkwijze de stappen omvat van het: roteren van de ene van de twee rollen zodanig dat een contactsnelheid van de ene van de twee rollen afwijkt van een snelheid bij welke de kranttransportmiddelen het individuele krantvel transporteren, waarin de afwijking tussen 0,1% - 6% van de contactsnelheid, bij voorkeur tussen 3% - 5% is.A method of producing a semi-finished newspaper product according to claim 10, wherein the adhesive application means comprise two parallel and juxtaposed extended rollers adapted to rotate about its extended axis, wherein the adhesive is applied to an individual newspaper sheet by contacting of the individual newspaper sheet with one of the two rollers during transport thereof, wherein the method comprises the steps of: rotating the one of the two rollers such that a contact speed of the one of the two rollers deviates from a speed at which the newspaper transport means transport the individual newspaper sheet, wherein the deviation is between 0.1% - 6% of the contact speed, preferably between 3% - 5%. 12. Werkwijze van het produceren van een half afgemaakt product van kranten volgens conclusie 10, waarin de kleefmiddeltoepasmiddelen omvatten kleefmiddelsproeimiddelen omvattende een veelheid van ventielen, waarin de werkwijze omvat de stap van het: toepassen van het kleefmiddel op het individuele krantvel door het sproeien van het kleefmiddel, gebruikmakende van de veelheid van ventielen, gedurende het transport van het individuele krantvel door de kranttransportmiddelen.The method of producing a semi-finished newspaper product according to claim 10, wherein the adhesive applicators include adhesive sprayers comprising a plurality of valves, wherein the method comprises the step of: applying the adhesive to the individual newspaper sheet by spraying the newspaper. adhesive, using the plurality of valves, during the transport of the individual newspaper sheet through the newspaper transport means. 13. Werkwijze van het produceren van een half afgemaakt product van kranten volgens een van de conclusies 10 - 12, waarin de kranttransportmiddelen omvatten een uitgestrekte oppikbar omvattende een veelheid van zuigventielen, waarin de werkwijze de stap omvat van het: oppikken van het individuele krantvel van de opgeslagen veelheid van individuele krantvellen door het activeren van de veelheid van zuigventielen.A method of producing a semi-finished newspaper product according to any of claims 10 to 12, wherein the newspaper transport means comprises an extended pick-up bar comprising a plurality of suction valves, wherein the method comprises the step of: picking up the individual newspaper sheet from the stored plurality of individual newspaper sheets by activating the plurality of suction valves. 14. Werkwijze van het produceren van een half afgemaakt product van kranten volgens conclusie 13, waarin de uitgestrekte oppikbar is ingericht om te zwenken over diens uitgestrekte as, waarin de werkwijze verder de stappen omvat van het: zwenken, door de transportmiddelen, van de uitgestrekte oppikbar op een dusdanige manier dat de zuigventielen loodrecht georiënteerd zijn ten aanzien van het individuele krantvel voor het oppikken van het individuele krantvel, en voor het: zwenken, door de kranttransportmiddelen, van de uitgestrekte oppikbar op een dusdanige manier dat de zuigventielen loodrecht georiënteerd zijn ten aanzien van een oppervlak van de stapel van individuele krantvellen voor het positioneren van het enkele krantvel daar bovenop.A method of producing a semi-finished newspaper product according to claim 13, wherein the extended pick-up bar is adapted to pivot about its extended axis, wherein the method further comprises the steps of: pivoting, by the conveying means, the extended pick-up bar in such a way that the suction valves are oriented perpendicularly with respect to the individual newspaper sheet for picking up the individual newspaper sheet, and for pivoting, through the newspaper transport means, the extended pick-up bar in such a way that the suction valves are oriented perpendicularly to facing a surface of the stack of individual newspaper sheets for positioning the single newspaper sheet on top of it. 15. Werkwijze van het produceren van een half afgemaakt product van kranten volgens een van de conclusies 10 - 14, waarin het samenstel verder omvat ten minste een luchtblaasorgaan, georiënteerd boven de stapelvoorvorm, welke werkwijze verder de stap omvat van het: blazen, door het ten minste ene luchtblaasorgaan, van lucht boven op de stapel van individuele krantvellen voor het behouden van de individuele krantvellen op diens plaats op de stapelvoorvorm.A method of producing a semi-finished newspaper product according to any of claims 10 to 14, wherein the assembly further comprises at least one air blower oriented above the stack preform, which method further comprises the step of: blowing through the at least one air blower, of air on top of the stack of individual newspaper sheets to retain the individual newspaper sheets in place on the stack preform. 16. Werkwijze van het produceren van een half afgemaakt product van kranten volgens een van de conclusies 10 - 15, waarin de werkwijze verder de stap omvat van het: snijden van het half afgemaakte product van kranten naar lagen met vooraf bepaalde dikte.The method of producing a semi-finished newspaper product according to any of claims 10 to 15, wherein the method further comprises the step of: cutting the semi-finished newspaper product into predetermined thickness layers.
NL2017777A 2016-11-14 2016-11-14 An assembly for producing a semi-finished product from newspapers as well as a corresponding method. NL2017777B1 (en)

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AT16818U1 (en) * 2019-07-16 2020-09-15 Wilhelm Huellerbrand Multi-layer paper web

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400885A1 (en) * 1994-01-14 1995-07-20 Steinhoff Laminat Gmbh Process and device for the production of laminate panels and the laminate panel molding produced therewith,
DE19535602A1 (en) * 1995-09-25 1997-03-27 Hering Gerhard K Manufacturing honeycomb material from material webs
DE202014102625U1 (en) * 2014-06-05 2015-07-09 Siggset + Print & Media Ag Plant for the production of board material made of paper and board material produced therewith

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400885A1 (en) * 1994-01-14 1995-07-20 Steinhoff Laminat Gmbh Process and device for the production of laminate panels and the laminate panel molding produced therewith,
DE19535602A1 (en) * 1995-09-25 1997-03-27 Hering Gerhard K Manufacturing honeycomb material from material webs
DE202014102625U1 (en) * 2014-06-05 2015-07-09 Siggset + Print & Media Ag Plant for the production of board material made of paper and board material produced therewith

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