EP2226168A1 - Plastics shredding unit - Google Patents

Plastics shredding unit Download PDF

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Publication number
EP2226168A1
EP2226168A1 EP10460007A EP10460007A EP2226168A1 EP 2226168 A1 EP2226168 A1 EP 2226168A1 EP 10460007 A EP10460007 A EP 10460007A EP 10460007 A EP10460007 A EP 10460007A EP 2226168 A1 EP2226168 A1 EP 2226168A1
Authority
EP
European Patent Office
Prior art keywords
unit
shredding
sub
cutting wheel
threshold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10460007A
Other languages
German (de)
French (fr)
Other versions
EP2226168B1 (en
Inventor
Andrzej Moraczewski
Jan Wojtysiak
Wladyslaw Podsiedlik
Elzbieta Witczak
Grazyna Redlich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Instytut Technologii Bezpieczenstwa "moratex"
Original Assignee
Instytut Technologii Bezpieczenstwa "moratex"
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 Instytut Technologii Bezpieczenstwa "moratex" filed Critical Instytut Technologii Bezpieczenstwa "moratex"
Publication of EP2226168A1 publication Critical patent/EP2226168A1/en
Application granted granted Critical
Publication of EP2226168B1 publication Critical patent/EP2226168B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/18—Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like
    • B26D3/22—Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like using rotating knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/02—Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/148—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers specially adapted for disintegrating plastics, e.g. cinematographic films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/16—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts

Definitions

  • This invention is a device for shredding plastic materials with diverse length, width, and thickness, in particular multilayer textile waste.
  • the patent application no. P-381390 contains a description of the method of shredding waste from multilayer plastics with low melting point and low hardness, and the shredding unit for waste from multilayer plastics with low melting point and low hardness.
  • the shredding unit consists of a feeder table fitted with feed rollers and serially located clamping elements and a cutting wheel with planetary motion, which cutting wheel rotates together with a roller around its own axis and around the axis of a cranked roller on which it is mounted.
  • the input is periodically fed with the use of two rollers, one of which is periodically rotated by a ratchet mechanism.
  • the input is clamped between the table and the actuator-controlled clamping elements.
  • the invention's design enables shredding of multilayer materials, especially textile waste with the thickness from 0,5 to 40 mm, into cubes with the assumed width and length dimensions not smaller than 5x5mm.
  • the shredding unit consists of two coupled shredding sub-units located perpendicularly to one another, either of which comprises feeding, clamping, cutting, and output removal systems.
  • Both shredding sub-units have separately adjusted speed, pressure, and input protrusion beyond the cutting wheel and are synchronised with one another, and thus keep up the same stream of the shredded material.
  • the first shredding sub-unit has a feeding system that consists of a feeder table and several endless saw chains mounted on self-aligning parallel guides.
  • the clamping system consists of cyclically raised and lowered blocks controlled by pneumatic actuators that also adjust the blocks pressing power. When lowered, the blocks press to the table threshold the material, a part of which protrudes beyond the threshold, where the size of that protrusion is also adjustable.
  • the cutting system comprises a slidable threshold that keeps up the protruding material and is coupled with the cutting wheel in its reciprocating motion so that the threshold slightly forestalls the cutting wheel in the course of the cutting process.
  • the second shredding sub-unit comprises a clamping system that consists of a table and separately controlled clamp blocks and a cutting system with another slidable threshold coupled with the second cutting wheel.
  • the shredding unit enables the input to be cut twice in different directions and helps to produce shredded output with the dimensions that approximate the two assumed dimensions of each element, which is the condition of its further processing.
  • the shredding unit can be applied for shredding soft and thin elements, as well as multilayer materials with diverse structures and different properties of each layer, since such elements are held up tight on the cutting wheel's attack.
  • Fig.1 shows a schematic diagram of the shredding unit
  • Fig.2 - a schematic diagram of the input feeding system in the first shredding sub-unit.
  • the plastics shredding unit consists of two sub-units, the first of which comprises a feeder table 1 onto which fed is the input material to be shredded 2 .
  • the sub-unit employs a chain input guiding system 2 comprised of endless saw chains 3 mounted on self-aligning parallel guides 4 .
  • the saw chains 3 with variable height and length of the links, ensure adequate adherence and stable transport of pieces of the material with variable thickness and softness into the operating zone of the clamping system comprising clamp blocks 5 controlled by a pneumatic actuator 6 .
  • the clamp blocks 5 are raised and then lowered to press the input down to the threshold 7 , at the edge of which there is located the operating zone of the cutting wheel 8 .
  • the input material's protrusion beyond the threshold is adjustable, whereas it has been assumed beneficial for that protrusion to be not smaller than 5 mm.
  • the protruding input material 2 is kept up by a slidable threshold 9 , coupled with the cutting wheel 8 in its reciprocating motion.
  • a slidable threshold 9 is so configured with the cutting wheel 8 that the threshold slightly forestalls the cutting wheel in the course of the cutting process.
  • the pre-shredded output 10 is received by the transporter 11 located under the threshold 7 and carried to the second shredding sub-unit which is set at the right angle to the first sub-unit.
  • the transporter 11 that feeds the second shredding sub-unit is half-pipe shaped, which ensures relatively parallel arrangement and density of the pre-shredded output 10 within the middle part of the transporter. This is important for the further cutting process, because it stiffens the structure of the shredded material by thickening it and prevents scattering.
  • the pre-shredded output 10 is transported to the operating zone of notched feed rollers 12 . Their task is to regularly feed the material into the operating zone of the second clamping system and under the clamp blocks 13 .
  • This system is a reproduction of that in the first shredding sub-unit, save any necessary changes intended to adjust it for cutting the pre-shredded output.
  • Each clamp block 13 in the second system is controlled by a separate pneumatic actuator 14 for accurate adjustment of each unit pressure while the second cutting wheel cuts the pre-shredded output 15 .
  • Both shredding sub-units are synchronised with one another and keep up the same stream of the shredded material.
  • the shredded output with the pre-set width and length dimensions falls down into the chute located under the thresholds and is received by the receiver container.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

This invention is a device for shredding plastic materials with diverse length, width, and thickness, in particular multilayer textile waste.
The shredding unit consists of two sub-units, the first of which comprises a feeder table (1) coupled with a chain conveyor that feeds pieces of the material (2) with variable thickness and softness into the zone of clamp blocks (5) controlled by a pneumatic actuator (6). When lowered, the blocks press the material to the threshold (7) at the edge of which there is located the operating zone of the cutting wheel (8). The material protruding beyond the threshold (7) is held up by a slidable threshold (9) coupled with the cutting wheel (8) in its reciprocating motion. When the material passes through this first unit it is slit into pre-shredded output (10) with fixed width and random length and thickness.
The pre-shredded output (10) is transported into the operating zone of notched feed rollers (12) in the shredding unit's second sub-unit which is set at the right angle to the first unit. Each clamp block (13) in the second unit is controlled by a separate pneumatic actuator (14) for accurate adjustment of each unit pressure while the second cutting wheel cuts the pre-shredded output (15).
Both shredding units are synchronised with one another and keep up the same stream of the shredded material.

Description

  • This invention is a device for shredding plastic materials with diverse length, width, and thickness, in particular multilayer textile waste.
  • The patent application no. P-381390 contains a description of the method of shredding waste from multilayer plastics with low melting point and low hardness, and the shredding unit for waste from multilayer plastics with low melting point and low hardness. The shredding unit consists of a feeder table fitted with feed rollers and serially located clamping elements and a cutting wheel with planetary motion, which cutting wheel rotates together with a roller around its own axis and around the axis of a cranked roller on which it is mounted. The input is periodically fed with the use of two rollers, one of which is periodically rotated by a ratchet mechanism. The input is clamped between the table and the actuator-controlled clamping elements.
  • The invention's design enables shredding of multilayer materials, especially textile waste with the thickness from 0,5 to 40 mm, into cubes with the assumed width and length dimensions not smaller than 5x5mm. The shredding unit consists of two coupled shredding sub-units located perpendicularly to one another, either of which comprises feeding, clamping, cutting, and output removal systems.
  • Both shredding sub-units have separately adjusted speed, pressure, and input protrusion beyond the cutting wheel and are synchronised with one another, and thus keep up the same stream of the shredded material. The first shredding sub-unit has a feeding system that consists of a feeder table and several endless saw chains mounted on self-aligning parallel guides.
  • The clamping system consists of cyclically raised and lowered blocks controlled by pneumatic actuators that also adjust the blocks pressing power.
    When lowered, the blocks press to the table threshold the material, a part of which protrudes beyond the threshold, where the size of that protrusion is also adjustable.
  • The cutting system comprises a slidable threshold that keeps up the protruding material and is coupled with the cutting wheel in its reciprocating motion so that the threshold slightly forestalls the cutting wheel in the course of the cutting process.
  • Under the threshold of the first shredding sub-unit there is a transporter which, together with a couple of notched feed rollers, constitutes the feeding system of the second shredding sub-unit.
  • The second shredding sub-unit comprises a clamping system that consists of a table and separately controlled clamp blocks and a cutting system with another slidable threshold coupled with the second cutting wheel.
  • Under the threshold of the second sub-unit's table there is located a chute which receives the shredded output.
  • The shredding unit enables the input to be cut twice in different directions and helps to produce shredded output with the dimensions that approximate the two assumed dimensions of each element, which is the condition of its further processing.
  • In particular, the shredding unit can be applied for shredding soft and thin elements, as well as multilayer materials with diverse structures and different properties of each layer, since such elements are held up tight on the cutting wheel's attack.
  • The invention is shown in the drawing, where Fig.1 shows a schematic diagram of the shredding unit, Fig.2 - a schematic diagram of the input feeding system in the first shredding sub-unit.
  • The plastics shredding unit consists of two sub-units, the first of which comprises a feeder table 1 onto which fed is the input material to be shredded 2. Apart from the table 1, the sub-unit employs a chain input guiding system 2 comprised of endless saw chains 3 mounted on self-aligning parallel guides 4. The saw chains 3, with variable height and length of the links, ensure adequate adherence and stable transport of pieces of the material with variable thickness and softness into the operating zone of the clamping system comprising clamp blocks 5 controlled by a pneumatic actuator 6. When the input material is moved forward 2, the clamp blocks 5 are raised and then lowered to press the input down to the threshold 7, at the edge of which there is located the operating zone of the cutting wheel 8 . The input material's protrusion beyond the threshold is adjustable, whereas it has been assumed beneficial for that protrusion to be not smaller than 5 mm. The protruding input material 2 is kept up by a slidable threshold 9 , coupled with the cutting wheel 8 in its reciprocating motion. Such a solution ensures effective cutting of even thin and soft material, since it is kept up tight on the cutting wheel's attack 8 , which ensures adequate angle of attack and prevents the material from folding. The slidable threshold 9 is so configured with the cutting wheel 8 that the threshold slightly forestalls the cutting wheel in the course of the cutting process. When the material passes through this first sub-unit it is slit into pre-shredded output (10) with fixed width and random length and thickness.
  • The pre-shredded output 10 is received by the transporter 11 located under the threshold 7 and carried to the second shredding sub-unit which is set at the right angle to the first sub-unit. The transporter 11 that feeds the second shredding sub-unit is half-pipe shaped, which ensures relatively parallel arrangement and density of the pre-shredded output 10 within the middle part of the transporter. This is important for the further cutting process, because it stiffens the structure of the shredded material by thickening it and prevents scattering.
  • The pre-shredded output 10 is transported to the operating zone of notched feed rollers 12 . Their task is to regularly feed the material into the operating zone of the second clamping system and under the clamp blocks 13 . This system is a reproduction of that in the first shredding sub-unit, save any necessary changes intended to adjust it for cutting the pre-shredded output. Each clamp block 13 in the second system is controlled by a separate pneumatic actuator 14 for accurate adjustment of each unit pressure while the second cutting wheel cuts the pre-shredded output 15 . Both shredding sub-units are synchronised with one another and keep up the same stream of the shredded material. The shredded output with the pre-set width and length dimensions falls down into the chute located under the thresholds and is received by the receiver container.

Claims (3)

  1. The device for shredding plastic materials with multilayer structures and diverse dimensions, comprising input feeding systems and clamping systems with pneumatic actuator-controlled clamping elements that immobilise the shredded material while it is cut by the cutting wheel is unique in that it has two shredding sub-units perpendicular to and synchronised with one another, which sub-units keep up the same stream of the input material and have separately adjusted speed, pressure, and input protrusion beyond the cutting wheels (8) and (15), and enable processing of shredded multilayer output materials, especially from textile waste, into cubes with the assumed width and length dimensions.
  2. The shredding unit, pursuant to claim 1, is unique in that the first shredding sub-unit comprises a chain input guiding system comprising at least several spring-loaded endless saw chains (3) with variable height and length of the links and mounted on self-aligning parallel guides (4), as well as a slidable threshold (9) coupled with the cutting wheel (8) in its reciprocating motion in such a manner that the threshold slightly forestalls the cutting wheel in the course of the cutting process.
  3. The shredding unit, pursuant to claim 1, is unique in that the second shredding sub-unit is fed by a half-pipe shaped transporter (11) and fitted with notched feed rollers (12) and clamp blocks (13) controlled by separate pneumatic actuators (14).
EP20100460007 2009-03-02 2010-03-01 Plastics shredding unit Not-in-force EP2226168B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL387376A PL216116B1 (en) 2009-03-02 2009-03-02 Assembly for the disintegration of plastics

Publications (2)

Publication Number Publication Date
EP2226168A1 true EP2226168A1 (en) 2010-09-08
EP2226168B1 EP2226168B1 (en) 2015-05-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100460007 Not-in-force EP2226168B1 (en) 2009-03-02 2010-03-01 Plastics shredding unit

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EP (1) EP2226168B1 (en)
PL (1) PL216116B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20130380A1 (en) * 2013-03-13 2014-09-14 Giorgio Grasselli INDUSTRIAL SLICER
CN104888889A (en) * 2014-12-03 2015-09-09 成都宸鸿科技有限公司 Feeding system of roller cutting mill
CN104960013A (en) * 2015-05-18 2015-10-07 合肥京东方光电科技有限公司 Cutting device for film-laminated paster
CN107363891A (en) * 2017-07-24 2017-11-21 麻大伟 Building material machining workbench automatic fastening device
CN111716591A (en) * 2020-07-01 2020-09-29 林超 Polyethylene foam material recovery processing method
CN113290593A (en) * 2021-07-28 2021-08-24 四川省新禾成中药材有限公司 A slicer for medicinal material processing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959208A (en) * 2014-12-03 2015-10-07 成都宸鸿科技有限公司 Automatic material feeding device suitable for roller cutting grinding mill
CN109955409B (en) * 2019-05-10 2020-12-08 台州精微顺自动化有限公司 Recovery unit of abandonment rubber slab

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1728433A1 (en) * 1966-11-11 1972-08-31 Elimar Wehner Device for dividing panels in color into panel parts, each independently adjustable in length and width
EP0305673A2 (en) * 1987-09-04 1989-03-08 Heinz Nienstedt Recklinghausen Apparatus for separating frozen food cubes into smaller ones
EP0931630A2 (en) * 1998-01-24 1999-07-28 MAGURIT Gefrierschneider GmbH Apparatus for cutting food
PL381390A1 (en) 2006-12-27 2008-07-07 Instytut Technologii Eksploatacji Państwowy Instytut Badawczy The manner of disintegration of wastes of multi-layer materials with low melting temperature and small hardness and disintegrator of wastes of multi-layer materials with low melting temperature and small hardness

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1728433A1 (en) * 1966-11-11 1972-08-31 Elimar Wehner Device for dividing panels in color into panel parts, each independently adjustable in length and width
EP0305673A2 (en) * 1987-09-04 1989-03-08 Heinz Nienstedt Recklinghausen Apparatus for separating frozen food cubes into smaller ones
EP0931630A2 (en) * 1998-01-24 1999-07-28 MAGURIT Gefrierschneider GmbH Apparatus for cutting food
PL381390A1 (en) 2006-12-27 2008-07-07 Instytut Technologii Eksploatacji Państwowy Instytut Badawczy The manner of disintegration of wastes of multi-layer materials with low melting temperature and small hardness and disintegrator of wastes of multi-layer materials with low melting temperature and small hardness

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20130380A1 (en) * 2013-03-13 2014-09-14 Giorgio Grasselli INDUSTRIAL SLICER
EP2777897A1 (en) * 2013-03-13 2014-09-17 Giorgio Grasselli Industrial slicer
CN104044163A (en) * 2013-03-13 2014-09-17 乔治·格拉塞利 Industrial slicer
CN104888889A (en) * 2014-12-03 2015-09-09 成都宸鸿科技有限公司 Feeding system of roller cutting mill
CN104960013A (en) * 2015-05-18 2015-10-07 合肥京东方光电科技有限公司 Cutting device for film-laminated paster
CN107363891A (en) * 2017-07-24 2017-11-21 麻大伟 Building material machining workbench automatic fastening device
CN111716591A (en) * 2020-07-01 2020-09-29 林超 Polyethylene foam material recovery processing method
CN113290593A (en) * 2021-07-28 2021-08-24 四川省新禾成中药材有限公司 A slicer for medicinal material processing

Also Published As

Publication number Publication date
EP2226168B1 (en) 2015-05-06
PL216116B1 (en) 2014-02-28
PL387376A1 (en) 2010-09-13

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