EP0574694A1 - Outil de coupe pour machine à hacher des substances pâteuses - Google Patents

Outil de coupe pour machine à hacher des substances pâteuses Download PDF

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Publication number
EP0574694A1
EP0574694A1 EP93107515A EP93107515A EP0574694A1 EP 0574694 A1 EP0574694 A1 EP 0574694A1 EP 93107515 A EP93107515 A EP 93107515A EP 93107515 A EP93107515 A EP 93107515A EP 0574694 A1 EP0574694 A1 EP 0574694A1
Authority
EP
European Patent Office
Prior art keywords
adjusting
cutting set
set according
axial
cutter heads
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
EP93107515A
Other languages
German (de)
English (en)
Other versions
EP0574694B1 (fr
Inventor
Alfred Sziede
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.)
Karl Schnell Maschinenfabrik
Karl Schnell GmbH and Co Maschinenfabrik
Original Assignee
Karl Schnell Maschinenfabrik
Karl Schnell GmbH and Co Maschinenfabrik
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 Karl Schnell Maschinenfabrik, Karl Schnell GmbH and Co Maschinenfabrik filed Critical Karl Schnell Maschinenfabrik
Publication of EP0574694A1 publication Critical patent/EP0574694A1/fr
Application granted granted Critical
Publication of EP0574694B1 publication Critical patent/EP0574694B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B02C18/30—Mincing machines with perforated discs and feeding worms
    • B02C18/301—Mincing machines with perforated discs and feeding worms with horizontal axis
    • B02C18/304—Mincing machines with perforated discs and feeding worms with horizontal axis with several axially aligned knife-perforated disc units

Definitions

  • the invention relates to a cutting set of a very fine comminution machine for pasty masses, in particular meat masses, with at least two rotating cutter heads, each of which is individually assigned to a fixed perforated plate and arranged on a cutter shaft driven by a motor, and with an adjusting device for adjusting the axial position of the cutter heads.
  • the cutting set must be set so that both cutter heads lie evenly on the perforated disks or are at a defined, even distance from the perforated disks. Wear and regrinding of the perforated plates and the knife blades can always result in different distances between the cutter head and the perforated plate.
  • two cutter heads arranged opposite a respective perforated plate can be adjusted together by displacing the cutter shaft in the axial direction.
  • the different distances between the respective cutter head and the associated perforated plate resulting from different thicknesses of the perforated plates and from grinding the knife blades have previously been compensated for by an adjusting nut outside the machine in an adjusting device. After installing the cutting set in the machine, the distance from the cutter head to the perforated plate must be adjusted.
  • the known machine only allows a joint adjustment of the axial position of the cutter heads dependent on the load on the drive motor by means of adjustment of the cutter shaft.
  • a temperature change occurs when the distance between the cutter head and the respective perforated plate is changed.
  • a small distance between cutter head and perforated plate means high throughput and low Temperature increase, while a larger distance between cutter head and perforated plate results in a smaller throughput and a larger temperature increase.
  • the adjusting device has separate adjusting elements for each cutter head, which adjust the axial positions of the cutter heads separately and automatically, depending on at least one operating parameter.
  • the main advantage of this is that the axial positions of the cutter heads in relation to the fixed perforated plates assigned to them can be carried out automatically in the machine even after the cutting set has been installed in the machine.
  • a preferred embodiment has two cutter heads, two perforated plates and two adjusting bushes.
  • two adjusting spindles running in parallel are provided per adjusting bushing, which bring about a more favorable force transmission to the adjusting bushes than would be possible with only one adjusting spindle.
  • the adjustment gear is equipped with a sliding hub with adjustable torque.
  • the adjustment gear is preferably designed as a toothed belt gear.
  • a rotary pulse generator is preferably connected to the adjusting spindles in a rotationally fixed manner, and the knife setting motor is switched off at the moment when the rotary pulse generator no longer emits pulses.
  • the adjustment device In order to achieve an exact adjustment of the cutter heads to the perforated plate, it is also necessary that the adjustment device has no axial play.
  • the adjusting device preferably has an axial play compensation device which engages on bearing flanges of the adjusting bush axial bearings.
  • the latter preferably has a spring assembly that generates a preload between a housing of the microfinishing machine and the bearing flanges of the axial bearings of the adjusting bushes.
  • the adjustment device preferably has a position encoder which indicates the axial position of the cutter heads, and an electronic control device is provided for controlling the adjustment device and is connected at least to the knife adjustment motor, the rotary pulse encoder and the travel encoder.
  • the temperature in the outlet of the micro-shredder is recorded as an operating parameter for actuating the adjusting device
  • a temperature sensor is provided at least in the outlet area of the micro-shredder and the electronic control device is set up so that it depends on the distance between the cutter heads and the associated perforated plates of at least the temperature in the outlet area.
  • Another temperature sensor can preferably also detect the temperature in the inlet area, so that the difference between outlet temperature and inlet temperature can be determined by the electronic control device as an operating parameter for actuating the adjusting device.
  • a knife shaft 5 coupled to a motor shaft is located within a machine housing 9.
  • the motor shaft is driven by a knife motor 6, not shown.
  • the cutting set has a first cutter head 1 and a second cutter head 2, which, driven by the cutter shaft 5, are each arranged opposite fixed perforated plates 3 and 4.
  • the cutting set for adjusting the cutter heads 1 and 2 has two adjusting bushes 11, 12 which are connected to the cutter shaft in a rotationally fixed manner but are axially displaceable coaxially to the cutter shaft 5.
  • the adjusting bushes 11, 12 are each mounted in axial bearings 14 and 13, which are each held in bearing flanges 32 and 31.
  • Two adjusting spindles 17, 18 jointly engage on the bearing flange 31 and two adjusting spindles 15, 16 jointly engage on the bearing flange 32.
  • the adjusting spindles are driven by a knife adjusting motor 20 via an adjusting gear, which is further described with reference to FIG. 2, for adjusting the cutting set.
  • the cutter heads 1, 2 and their associated fixed perforated plates 3, 4 are surrounded all around by an annular holder 48 which holds two baffle rings 46 and 47 serving as wipers.
  • the cutter heads 1 and 2 are fixed on the adjusting bushes 11 and 12 by clamping nuts 42 and 43, respectively.
  • an outlet housing 8 is clamped onto the end of the cutting set opposite the first perforated disk 3 and tightened with a handwheel 44.
  • a temperature sensor 41 is attached to an extension piece of the outlet housing 8 and measures the temperature of the outgoing, comminuted material to be cut.
  • On the wall of an inlet housing 7, a further temperature sensor 40 is provided, which detects the temperature of the incoming material to be cut.
  • the first perforated plate 4 seen in the flow direction of the latter is coarse and the second perforated plate 3 is finely perforated.
  • the thicknesses of the two perforated plates 3 and 4 can be different due to different wear or due to design.
  • the second, fine perforated plate 3 is thinner than the first, rough perforated plate 4. Due to the separate adjustability of the cutter heads 1 and 2 according to the invention, such a different thickness of the perforated plate can be automatically taken into account when adjusting the cutter heads.
  • the preferably used toothed belt transmission 21 is shown schematically.
  • the four adjusting spindles 15 - 18 are each driven by the knife setting motor 20 via toothed belts 24, 26 and 27.
  • the spindle axes are provided with slip hubs 22, not shown, which slip when the respective cutter head hits the associated perforated plate.
  • a toothed belt 25 which is connected to the spindle axis 18 and drives a rotary pulse generator 23, comes to a standstill, whereupon the rotary pulse generator 23 no longer generates any pulses.
  • a control device (not shown) is provided for controlling the adjustment device and is connected at least to the knife setting motor 20, the rotary pulse generator 23 and the temperature guides 40, 41 in the inlet and outlet housings 7 and 8. Furthermore, the axial actual position of the cutter heads 1 and 2 are provided, which is also connected to the control device. Furthermore, the control device has a keyboard, also not shown, for entering control commands.
  • the setting process is as follows: Pressing a specific key on the keyboard initiates the setting.
  • the knife setting motor is started.
  • the four adjusting spindles 15-18 are driven via the slip hubs, which adjust the bearing flanges 32 and 31 with the adjusting bushes 11, 12 until the cutter heads 1, 2 abut the perforated plates 3, 4.
  • the corresponding slip hub 22 slips.
  • the second adjustment unit continues to run until the other cutter head also lies against the assigned perforated plate and the second slip hub slips.
  • the rotary pulse generator 23 then no longer outputs pulses, the knife setting motor 20 switches off.
  • the control device takes this position, in which the distances between the two cutter heads 1, 2 from the associated perforated plates 3, 4 are assumed to be zero, and then moves to the preselected knife distance by reversing the direction of rotation of the knife setting motor.
  • the keyboard of the control device also has separate keys for forward and reverse operation of the knife setting motor.
  • a display unit then shows the knife distance. If the knives were still in the working position, the knife distance is displayed immediately.
  • the keyboard has separate forward / backward keys for the knife setting motor. By pressing one of the two buttons, the knife spacing can also be changed by hand while the fine grinding machine is in operation.
  • the preferred temperature-dependent control of the position of the cutter heads is as follows: When the meat is chopped, the aim is to achieve an outlet temperature that is as uniform as possible.
  • the inlet temperature can be determined by the temperature sensor 40 in the inlet housing 7 and, in combination with the outlet temperature determined by the temperature sensor 41 in the outlet housing 8, the adjusting device can be actuated in order to automatically increase the distance of the cutter heads 1, 2 from their opposing perforated plates 3, 4 change that the outlet temperature reaches the desired value and then maintains.
  • only an outlet temperature-dependent regulation of the knife distances can be achieved by detecting the outlet temperature.
  • the operating parameter outlet temperature influencing the knife adjustment is preferably used, but that the adjusting device of the cutting set designed according to the invention also allows other operating parameters such as load due to the electronic control device of the knife motor, degree of fineness of the material to be shredded, throughput, etc. to be used alternatively or additionally for the regulated adjustment of the cutting set.
  • the adjusting device has no axial play and that an axial play compensating device shown in detail in FIG. 3 can absorb axial forces of such a strength that the cutter heads 1 and 2 can keep their set distance despite the back pressure exerted by the material to be cut.
  • the axial play compensation device has four spring assemblies, of which one spring assembly is shown in FIG. 3, which comprises a compression spring 33 acting between the bearing flange 31 for the adjusting bush 12 and the machine housing 9 and one between the bearing flange 32 for the bearing bush 11 and the other bearing flange 31 acting second compression spring 34.
  • the first-mentioned compression spring 33 has an approximately twice as high spring constant as the second compression spring 34, which is, for example, approximately 400 Newtons. Furthermore, the axial bearings 13 and 14 are designed as double angular contact ball bearings to absorb the axial forces.
  • the cutting set according to the invention and the adjustment device designed according to the invention have two cutter heads and two perforated plates lying opposite them, the axial adjustment of the cutter heads being able to be effected separately by means of two adjusting bushes connected to the cutter shaft in a rotationally fixed manner.
  • the invention is The cutting set is not limited to two cutting heads, but can also have a larger number of cutter heads and perforated plates.
  • the cutting set according to the invention is preferably used in a very fine comminution machine with an essentially horizontal knife shaft. Instead, the principle of the invention can also be applied to an obliquely lying or vertical knife shaft.
  • the position of the cutter heads can also be adjusted by means of pneumatic and / or hydraulic adjusting drives via the adjusting bushes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP93107515A 1992-05-12 1993-05-08 Outil de coupe pour machine à hacher des substances pâteuses Expired - Lifetime EP0574694B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9206333U DE9206333U1 (fr) 1992-05-12 1992-05-12
DE9206333U 1992-05-12

Publications (2)

Publication Number Publication Date
EP0574694A1 true EP0574694A1 (fr) 1993-12-22
EP0574694B1 EP0574694B1 (fr) 1997-01-02

Family

ID=6879365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107515A Expired - Lifetime EP0574694B1 (fr) 1992-05-12 1993-05-08 Outil de coupe pour machine à hacher des substances pâteuses

Country Status (2)

Country Link
EP (1) EP0574694B1 (fr)
DE (2) DE9206333U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001007165A1 (fr) * 1999-07-26 2001-02-01 Eduard Fedorovich Syrovatsky Procede de traitement de viande, hachoir a viande, unite de coupe du hachoir a viande (2 mode de realisation), separateur de viande et paire de coupe du hachoir a viande
CN106509043A (zh) * 2016-11-04 2017-03-22 中农众创众投电子科技有限公司 一种多功能高效肉丸制浆机
EP2987557B1 (fr) 2014-08-22 2017-05-03 Karl Schnell GmbH & Co. KG Machine de broyage d'un produit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960409A1 (de) * 1999-12-15 2001-06-21 Inotec Gmbh Maschinenentwicklu Vorrichtung zum Zerkleinern eines Zerkleinerungsgutes
AT503389B1 (de) * 2006-03-24 2008-03-15 Laska Maschf Gmbh Fleischwolf
AT506721B1 (de) 2008-05-06 2011-11-15 Laska Maschf Gmbh Fleischwolf

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249840A2 (fr) * 1986-06-19 1987-12-23 Karl Schnell GmbH & Co. Maschinenfabrik Dispositif pour le réglage automatique des couteaux d'un hache-viande
DE3915409A1 (de) * 1989-05-11 1990-11-15 Inotec Gmbh Maschinenentwicklu Zerkleinerungsmaschine, insbesondere fuer die fleischverarbeitende industrie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249840A2 (fr) * 1986-06-19 1987-12-23 Karl Schnell GmbH & Co. Maschinenfabrik Dispositif pour le réglage automatique des couteaux d'un hache-viande
DE3915409A1 (de) * 1989-05-11 1990-11-15 Inotec Gmbh Maschinenentwicklu Zerkleinerungsmaschine, insbesondere fuer die fleischverarbeitende industrie

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001007165A1 (fr) * 1999-07-26 2001-02-01 Eduard Fedorovich Syrovatsky Procede de traitement de viande, hachoir a viande, unite de coupe du hachoir a viande (2 mode de realisation), separateur de viande et paire de coupe du hachoir a viande
EP2987557B1 (fr) 2014-08-22 2017-05-03 Karl Schnell GmbH & Co. KG Machine de broyage d'un produit
US10682650B2 (en) 2014-08-22 2020-06-16 Karl Schnell Gmbh & Co. Kg Mincing machine for mincing a product
CN106509043A (zh) * 2016-11-04 2017-03-22 中农众创众投电子科技有限公司 一种多功能高效肉丸制浆机

Also Published As

Publication number Publication date
DE9206333U1 (fr) 1992-08-27
EP0574694B1 (fr) 1997-01-02
DE59304945D1 (de) 1997-02-13

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