DE8806926U1 - Shredder for plastic film webs - Google Patents
Shredder for plastic film websInfo
- Publication number
- DE8806926U1 DE8806926U1 DE8806926U DE8806926U DE8806926U1 DE 8806926 U1 DE8806926 U1 DE 8806926U1 DE 8806926 U DE8806926 U DE 8806926U DE 8806926 U DE8806926 U DE 8806926U DE 8806926 U1 DE8806926 U1 DE 8806926U1
- Authority
- DE
- Germany
- Prior art keywords
- shredder
- film web
- rollers
- capsule
- plastic film
- 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.)
- Expired
Links
- 239000002985 plastic film Substances 0.000 title claims description 3
- 229920006255 plastic film Polymers 0.000 title claims description 3
- 239000002775 capsule Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 244000309464 bull Species 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 238000003856 thermoforming Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- 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
- 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
- B02C18/16—Details
- B02C18/22—Feed or discharge means
- B02C18/2225—Feed means
- B02C18/2283—Feed means using rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- 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
- B02C18/16—Details
- B02C18/22—Feed or discharge means
- B02C2018/2208—Feed or discharge means for weblike material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/044—Knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/008—Wide strips, e.g. films, webs
-
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
Description
Die Erfindung betrifft einen Zerkleinerer nach der Gattung des Hauptanspruches. Solche Zerkleinerer werden Thermoformmaschinen nachgeschaltst, um das Restgitter zu zermahlen. Bekannt sind solche Zerkleinerer z. B. aus der Deutschen Patentschrift 32 16 092. Die Anmelderin selbst vertreibt solche Zerkleinerer seit Jahren z. B. unter der Typenbezeichnung RS 75, die auch mit einer Kapsel zur Schalldämmung versehen sind.The invention relates to a shredder according to the type of the main claim. Such shredders are connected downstream of thermoforming machines in order to grind the residual skeleton. Such shredders are known, for example, from German patent specification 32 16 092. The applicant itself has been selling such shredders for years, for example under the type designation RS 75, which are also equipped with a capsule for sound insulation.
Ein Problem bei solchen Zerkleinerern ist die Geräuschentwicklung, insbesondere wenn Vollmaterial, also kein ausgestanztes Restgittew, zugeführt wird. Dies ist immer der Fall beim Wechseln einer Folienbahn in der Thermoformmaschine bzw. beim Anfahren. Dann entsteht trotz Jer Kapsel ein Schalldruckpegel je nach Material von Ober 100 dB (A), die vom Bedienungspersonal das Tragen von Schallschutzmitteln erfordert. Das Führen der Folienbahn durch einen geraden Tunnel, ausgekleidet mit Schalldämmmaterial, bringt keine wesentliche Reduzierung des Schalldruckpegels, wie sich in der Praxis gezeigt hat.One problem with such shredders is the noise they generate, especially when solid material, i.e. not punched-out scrap mesh, is fed in. This is always the case when changing a film web in the thermoforming machine or when starting up. In this case, despite the capsule, a sound pressure level of over 100 dB (A) is generated, depending on the material, which requires the operating personnel to wear soundproofing equipment. Feeding the film web through a straight tunnel lined with soundproofing material does not significantly reduce the sound pressure level, as has been shown in practice.
Der Erfindung lag die Aufgabe zugrunde, die Geräuschabetrahlung eine« Zerkleinerer« wesentlich zu verringern.The invention was based on the task of significantly reducing the noise radiation of a "shredder".
Zur Lösung der Erfindung werden die kennzeichnenden Merkmale des Hauptanspruches vorgeschlagen» Durch die Umlenkung der Folienbahn innerhalb der Kapsel zwischen Einlauf und Zuführeinrichtung des Zerkleinerers wird die Resonanz der Folienbahn und damit die übertragung der Schwingungen zwischen Rotor und der sich noch außerhalb der Kapsel befindlichen Folienbahn wesentlich verringert'. Damit strählt die außerhalb der Kapsel.befindliche Folienbahn wesentlich weniger Schall ab und der Zerkleinerer ist deutlich leiser.To solve the invention, the characterizing features of the main claim are proposed: "By deflecting the film web inside the capsule between the inlet and feed device of the shredder, the resonance of the film web and thus the transmission of vibrations between the rotor and the film web still outside the capsule is significantly reduced. The film web outside the capsule therefore emits significantly less sound and the shredder is significantly quieter.
In der Praxis wurden je nach Folienart und Foliendicke Schallreduzierungen bis 20 dB(A) erzielt.In practice, depending on the type and thickness of the film, noise reductions of up to 20 dB(A) were achieved.
* Ein Ausführungsbeispiel der Erfindung ist anhand der schema- ''■ tischen Zeichnungen näher beschrieben. Es zeigt:* An embodiment of the invention is described in more detail with reference to the schematic drawings. It shows:
j: Figur 1 - einen Querschnitt durch den Zerkleinerer im Einführungs- : zustand der Folienbahn (anfahren)j: Figure 1 - a cross-section through the shredder in the infeed state of the film web (starting up)
Figur 2 - denselben Schnitt im Betrieb des Zerkleinerers Figur 3 - eine Seitenansicht der Umlenkwalzen (teilweise).Figure 2 - the same section during operation of the shredder Figure 3 - a side view of the deflection rollers (partial).
Der Zerkleinerer besteht aus einem starren Stator 1 mit festen Schneidmessern 2, in dem sich der Rotor 3 mit mehreren Schneid- - messern 4 dreht. Eine Zufuhreinrichtung, bestehend aus Walzen 7, 8, führt die von einer vorgeschalteten, nicht dargestellten Thermoformmaschine ankommende Folienbahn 9, direkt in den Spalt zwischen Stator 1 und Rotor 3, dient also dem Vorschub der Folienbahn 9. Bei Folienmangel stoppen die Transportwalzen 7, 8. Die zermahlene Folienbahn 9 wird als Granulat über ein Sieb 5 und den Schlauch 6 abgeführt.The shredder consists of a rigid stator 1 with fixed cutting blades 2, in which the rotor 3 rotates with several cutting blades 4. A feed device consisting of rollers 7, 8 guides the film web 9 arriving from an upstream thermoforming machine (not shown) directly into the gap between stator 1 and rotor 3, thus serving to advance the film web 9. If there is a shortage of film, the transport rollers 7, 8 stop. The ground film web 9 is discharged as granulate via a sieve 5 and the hose 6.
Ferner weist der Zerkleinerer ringsum eine Kapsel 10 auf, die mit Schalidämmaterial ausgekleidet ist. Eine Türe 11 dient dem Zugang zum Zuführen des Anfangs einer neuen Folienbahn 9. Oben ist die Kapsel 10 mit einem schmalen Schlitz 12 zum Einführen der Folienbahn 9 versahen. Innerhalb der Kapsel 10 sind mehrere Walzen 13 bis 18 vorgesehen, die zur Umlenkung der Folienbahn 9 vor dem Erfassen durch die Transportwalze 7.8 dienen. Diese Umlenkung hat sich als entscheidend erwiesen, weil durch dieses Umlenken und durch das Aufliegen der Folienbahn 9 auf den Walzen 13 bis die Weiterleitung von Schwingungen innerhnlb der Folienbahn 9 verringert wird.The shredder also has a capsule 10 all around, which is lined with soundproofing material. A door 11 provides access for feeding in the beginning of a new film web 9. The capsule 10 is provided with a narrow slot 12 at the top for inserting the film web 9. Several rollers 13 to 18 are provided inside the capsule 10, which serve to deflect the film web 9 before it is caught by the transport roller 7.8. This deflection has proven to be crucial because this deflection and the fact that the film web 9 rests on the rollers 13 to 18 reduce the transmission of vibrations within the film web 9.
In besonderer Ausbildung der Erfindung werden die Walzen 13 bis 18 mit einem plastischen, schwingiingedämpfe/vSen Material Überzogen .In a special embodiment of the invention, the rollers 13 to 18 are coated with a plastic, vibration-damping material.
If II· · · · ·If II· · · · ·
In weiterer Ausbildung der Erfindung wird vorgeschlagen, die der Umlenkung dienenden Walzen 14, 15, 16, 17 paarweise auf Laschen 19, 20 zu setzen, die um je einen Drehpunkt 21, 22 schwenkbar ausgebildet sind. Als Schwenkantrieb dient je ein Zylinder 23, 24. Auf diese Weise ist es möglich, die Walzen 14 bis 17 aus der in Figur 2 gezeigten Betriebsstellung in den Einführungszustand (Figur 1) zu überführen, in dem ein gerader Durchgang der Folienbahn 9 vom Schlitz 12 zu den Transportwalzen 7, 8 gegeben ist. Dies erleichtert das Einführen des Anfange einer neuen Fclienbahn 9.In a further development of the invention, it is proposed that the rollers 14, 15, 16, 17 used for deflection be placed in pairs on brackets 19, 20, each of which is designed to pivot about a pivot point 21, 22. A cylinder 23, 24 serves as the pivot drive. In this way, it is possible to transfer the rollers 14 to 17 from the operating position shown in Figure 2 to the insertion state (Figure 1), in which a straight passage of the film web 9 from the slot 12 to the transport rollers 7, 8 is provided. This facilitates the insertion of the beginning of a new film web 9.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8806926U DE8806926U1 (en) | 1988-05-27 | 1988-05-27 | Shredder for plastic film webs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8806926U DE8806926U1 (en) | 1988-05-27 | 1988-05-27 | Shredder for plastic film webs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8806926U1 true DE8806926U1 (en) | 1989-09-28 |
Family
ID=6824457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8806926U Expired DE8806926U1 (en) | 1988-05-27 | 1988-05-27 | Shredder for plastic film webs |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8806926U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19642459A1 (en) * | 1996-10-15 | 1998-04-16 | Illig Maschinenbau Adolf | Method for controlling the feed rollers of a cutting mill for comminuting the residual lattice of an upstream thermoforming machine and cutting mill for carrying out the method |
| EP3560599A1 (en) * | 2018-04-27 | 2019-10-30 | Rapid Granulator AB | Accumulation device operable in a feeding arrangement of a granulator, feeding arrangement for a granulator and granulator comprising such a feeding arrangement |
-
1988
- 1988-05-27 DE DE8806926U patent/DE8806926U1/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19642459A1 (en) * | 1996-10-15 | 1998-04-16 | Illig Maschinenbau Adolf | Method for controlling the feed rollers of a cutting mill for comminuting the residual lattice of an upstream thermoforming machine and cutting mill for carrying out the method |
| EP0836887A1 (en) * | 1996-10-15 | 1998-04-22 | Adolf Illig Maschinenbau GmbH & Co | Method for controlling the feed rollers of a granulating mill for comminuting the scrap plastic film of a thermoforming machine and granulating mill for implementing such method |
| EP3560599A1 (en) * | 2018-04-27 | 2019-10-30 | Rapid Granulator AB | Accumulation device operable in a feeding arrangement of a granulator, feeding arrangement for a granulator and granulator comprising such a feeding arrangement |
| WO2019206582A1 (en) * | 2018-04-27 | 2019-10-31 | Rapid Granulator Ab | Feeding arrangement for a granulator and granulator comprising such a feeding arrangement |
| AU2019260382B2 (en) * | 2018-04-27 | 2021-03-04 | Rapid Granulator Ab | Feeding arrangement for a granulator and granulator comprising such a feeding arrangement |
| US10981179B2 (en) | 2018-04-27 | 2021-04-20 | Rapid Granulator Ab | Feeding arrangement for a granulator and granulator comprising such a feeding arrangement |
| RU2752097C1 (en) * | 2018-04-27 | 2021-07-22 | Рэпид Грэнюлэйтор Аб | Loading device for granulator and granulator containing such loading device |
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