EP2763825B1 - Cutting device with pivotable and lockable carriage - Google Patents

Description

The invention relates to an electrically operated disc cutting machine for cutting slices of particular stranded cutting material, preferably food, with a cutting device comprising a mounted in a machine housing, rotating in a generally vertical cutting plane circular blade, and with a substantially flat support plate with Support surface for placing the cutting material carrying carriage, which is guided along a slide rigidly connected to the machine housing slide parallel to the cutting plane and parallel to the plane of the support plate linearly movable, wherein the support plate of the carriage for cleaning purposes by at least 90 ° from its working position of the circular blade is pivoted away.

Such a slicing machine is known for example from the DE-A 1 782 009 ,

The cutting material, especially in automatically operated slicing machines for rope-shaped food, such as sausages, ham. Salmon, cheese, etc., is moved by means of a delivery device against the cutting device, usually in the direction perpendicular to the cutting plane, in which usually rotate one or more rotating circular blade to cut off slices from the conveyed cutting material. The drive of the cutting device is carried out by an electric motor, which is completely enclosed to protect against splashing water and pollution and for mechanical protection against external interference from the machine housing.

In order to be able to separate the desired disc from the material to be cut by the rotating blade, the material to be cut on the support surface of the support plate is moved by means of a carriage parallel to the cutting plane and moved towards the rotating knife blade until the rotating blade completely cut through the cutting material and the disc from Cutting material has cut off. Usually, the support plate is rigidly connected to a carriage foot, which leads from the support plate down and is movably supported on a slide rail, which in turn is rigidly connected to the machine housing.

Such a construction is for example in the DE 200 20 065 U1 described. The carriage foot is supported here with an outer slide guide from above on the slide rail, wherein sliding surfaces are also provided on the machine housing for receiving the occurring torques, on which the slide foot is slidably seated from above.

For the purpose of cleaning the platen - which is essential in particular for slicing machines for food use for hygienic reasons and therefore must be done frequently at regular, relatively short intervals - a mechanism is required by means of which the platen moved out of the cutting area of the circular blade and possible in a tilted cleaning position can be brought.

The DE 103 07 084 A1 describes a disc cutting machine in which the support plate is guided parallel to the cutting plane and Paratt to the plane of the support plate is linearly movable, wherein the support plate of the carriage can be tilted to obtain a stable support for smaller diameters of the slices to be cut. However, for geometric reasons, a tilting of the support plate is only possible here at most by an acute angle relative to the plane of the plate in its working position in the cutting operation. Therefore, handling is cumbersome and a thorough cleaning of the support plate in this pivoted position very difficult, if not impossible, at least not provided.

In contrast, the cited above DE-A1 782 009 a generic disc cutting machine with a movement mechanism that allows the support plate in a cleaning position by more than 90 ° from its working position away from the circular blade to a parallel to the direction of travel of the carriage pivot axis so that the plate can be cleaned easier and more thorough. However, the pivoting of the support plate takes place in a space area next to the slicing machine, in which the loading of sliced material takes place. There then inevitably constantly free space be held, which significantly increases the total effective footprint of the machine at the site.

Object of the present invention is in contrast to improve a generic disc cutting machine with the features described above cost and with little technical effort to the extent that the machine requires no additional space on its load side with the most compact design and optimal safety at work, which permanently for the required Cleaning work must be kept free, whereby the handling is further improved and occupational safety is further increased.

According to the invention this object is achieved in a surprisingly simple and effective manner in that the support plate of the carriage in a driven out of the working position along the slide out end position or cleaning position of the carriage about a pivot axis, the pivot axis φ between 60 ° and 85 ° strikes the cutting plane, is pivotally mounted, wherein the support plate is mechanically locked in all other positions, including the working position against pivoting.

The geometric choice of the final position or cleaning position of the carriage at the end of the linear travel allows easy access from virtually all sides to the support plate, which due to the inventively provided locking in all other operating positions the necessary protection against unintentional pivoting is achieved. In this way, the design effort in the manufacture of the disc cutting machine is significantly reduced with cost-effective means, due to It can no longer be kept permanently free in the area of the loading side of the machine, so that the machine can be used very space-saving even in confined spaces.

Advantageous in handling and operation are embodiments of the disc cutting machine according to the invention, which are characterized in that the pivot axis angle φ between 70 ° and 85 °, preferably between 72 ° and 82 °. The carriage can be pivoted away from the conventional stop plate for cutting thickness adjustment and tilted to the horizontal at forward tilted pivot axis to gain even more space for cleaning the carriage.

A class of advantageous embodiments of the disc cutting machine according to the invention is characterized in that the support plate of the carriage is mounted on a pivot shaft through which the pivoting takes place about the pivot axis. In particular, it can be provided that the pivot shaft has a locking device which releases or locks the pivot shaft in response to the linearly moved position of the carriage for pivoting.

An alternative or additional protection against unwanted pivoting of the support plate provide embodiments in which the backup is done twice. The locking device comprises as the first securing device a locking of the pivot axis by being mechanically locked against rotation. As a result, an effective barrier of the carriage is achieved against pivoting. Especially can be provided that with the first fuse an improved accident protection is achieved by the pivot axis is only released when the circular blade is safely covered or in a cleaning position. The locking device comprises, as a second securing device, a support bolt, with which the pivotable part of the carriage is slidably supported against a surface of the machine housing during a linear movement of the carriage along the slide rail or sliding axis, wherein this surface is geometrically designed such that the support bolt only in the End position of the carriage out of contact with the surface device. This ensures that the platen can only be pivoted at an end position.

Particularly preferred embodiments of the invention, in which Schlittenfuß is constructed in two parts, which enormously increases the number of design options for the design of the carriage. In particular, it can be provided that the two parts of the carriage foot are rotatably mounted to each other. In this case, an inner part of the carriage foot which is arranged towards the machine housing is firmly connected to the machine housing and the second part of the carriage foot, which is remote from the machine housing, is firmly connected to the carriage or the support surface. The second or outer part of the carriage foot is rotatably connected to the pivot axis. By blocking the pivot axis is achieved so that pivoting of the carriage or the support plate is effectively prevented.

Very particularly advantageous developments of these embodiments are characterized in that the two parts of the slide foot adjoin one another via an inclined surface at an angle α = 90 ° -φ to the cutting plane and are retarded relative to one another Axis perpendicular to this surface, namely the pivot axis are pivotable. This inclined surface acts during the entire pivoting movement as a guide surface for the parts of the carriage foot to be pivoted.

In further particularly preferred embodiments of the disc cutting machine according to the invention a locking bolt is provided, with which the pivotable part of the carriage is additionally lockable against pivoting. In the normal load case, this additional locking bolt absorbs a large part of the torque which is produced during an attempt to pivot the blocked carriage. Even with this simple measure, a considerable increase in reliability is achieved.

Advantageous developments of these embodiments are characterized in that the locking bolt is loaded with a compression spring or lockable by a thread, which causes a further increase in safety during operation and in particular the handling.

In an alternative class of embodiments of the invention, the support plate of the carriage is also mounted on a pivot shaft through which the pivoting about the pivot axis, but the pivot shaft is constructed in two or more parts, so that the pivot shaft is not the entire linear travel of the carriage must join on the slide. Rather, only the short front part of the carriage is moved, whereby a larger space below the platen is free, where else the relatively bulky pivot shaft would have to be moved. This liberated space can be used, for example, for the accommodation of elements of the drive electronics, which is an overall considerable allows more compact construction of the disc cutting machine according to the invention.

In a preferred and easy to manufacture development of this class of embodiments, the split pivot shaft on a coupling portion which engages with a pin or a spring in the end position of the carriage in a recess or groove and thus an otherwise rotationally fixed connection for rotating the pivot shaft and thus to Pivoting of the support plate releases.

In practice, also proves a further development, which can be realized in both classes of the embodiments described above and which is characterized in that a stop plate is provided for cutting thickness adjustment, which is linearly displaceable perpendicular to the cutting plane, and that the stop plate, the pivot shaft only in a linearly moved position of the carriage for pivoting releases, in which the disc cutting machine has a cutting thickness setting less than zero. In this position, the stop plate hides the circular blade in the cutting plane on the front side towards the operator geometrically, which contributes significantly to passive accident protection.

Preferably, the support plate in the support surface for the cutting material on a juice groove for draining liquid. This juice groove prevents the uncontrolled leakage of meat juice from the support surface while cutting sausage or meat products by catching the juice and drains defined and thus increases the hygiene when using the slicer in the food sector.

A further advantageous embodiment of the disc cutting machine according to the invention is characterized in that a compression spring is provided, and that the carriage can be moved linearly in the end position only after overpressure of the compression spring on the sliding axis or slide, in which then a pivoting of the pivotable part of the carriage around the pivot axis is possible. By only to be overcome counter pressure of the compression spring reaching the end position, in which a tilting of the support plate is even possible, mechanically difficult, creating an additional safeguard against unintentional pivoting of the support plate is achieved.

The slicing machine according to the invention can be designed both as a vertical cutter and in the form of a slanted cutter.

Further features and advantages of the invention will become apparent from the following detailed description of embodiments of the invention with reference to the figures of the drawing, which shows details essential to the invention, and from the claims. The individual features may be implemented individually for themselves or for a plurality of combinations in variants of the invention.

In the schematic drawing embodiments of the invention are shown, which are explained in more detail in the following description.

Fig. 1

einen schematische, teilweise transparente Draufsicht auf eine Ausführungsform der erfindungsgemäßen Scheibenschneidemaschine in einer Richtung parallel zur Schneidebene des Kreismessers und senkrecht zur Ebene der Auflageplatte, wobei im oberen Teil der Figur die Auflageplatte in ihrer Arbeitsstellung vor dem Kreismesser und im unteren Teil verschwenkt in der linear heraus gefahrenen Endposition des Schlittens dargestellt ist;

Fig. 2a

einen schematische Seitenansicht mit Blickrichtung senkrecht zur Schneidebene des Kreismessers bei der Ausführungsform nach Fig. 1 mit kurz vor die Endposition verfahrenem Schlitten, aber gerade noch nicht heruntergeklappter Auflageplatte;

Fig. 2b

die Ausführungsform nach Fig. 2a in einer schematischen Vertikalschnittansicht in einer Ebene senkrecht zur Schneidebene des Kreismessers mit Blickrichtung vom Bediener der Maschine parallel zur Ebene der Auflageplatte;

Fig. 2c

wie Fig. 2a, aber mit herunter geschwenkter Auflageplatte in der Endposition des Schlittens;

Fig. 2d

die Ausführungsform nach Fig. 2c in einer teilweise transparenten Vorderansicht mit Blickrichtung vom Bediener der Maschine längs der Achse der Gleitschiene;

Fig. 3a

einen schematische Seitenansicht wie in Fig. 2a, aber bei einer Ausführungsform mit zweigeteilter Schwenkwelle;

Fig. 3b

die Ausführungsform nach Fig. 3a in einer schematischen Vertikalschnittansicht wie in Fig. 2b;

Fig. 3c

wie Fig. 3a, aber mit herunter geschwenkter Auflageplatte in der Endposition des Schlittens; und

Fig. 3d

die Ausführungsform nach Fig. 3c in einer teilweise transparenten Vorderansicht mit Blickrichtung wie in Fig. 2d.

Show it:

Fig. 1

a schematic, partially transparent plan view of an embodiment of the disc cutting machine according to the invention in a direction parallel to the cutting plane of the circular blade and perpendicular to the plane of the support plate, wherein in the upper part of the figure, the support plate pivoted in its working position in front of the circular blade and in the lower part in the linear out is shown driven end position of the carriage;

Fig. 2a

a schematic side view with a view perpendicular to the cutting plane of the circular blade in the embodiment according to Fig. 1 with sledge moved shortly before the end position, but not yet folded down support plate;

Fig. 2b

the embodiment according to Fig. 2a in a schematic vertical sectional view in a plane perpendicular to the cutting plane of the circular blade as viewed from the operator of the machine parallel to the plane of the support plate;

Fig. 2c

as Fig. 2a but with the support plate swung down in the final position of the carriage;

Fig. 2d

the embodiment according to Fig. 2c in a partially transparent front view as viewed from the operator of the machine along the axis of the slide rail;

Fig. 3a

a schematic side view as in Fig. 2a but in an embodiment with a two-part pivot shaft;

Fig. 3b

the embodiment according to Fig. 3a in a schematic vertical sectional view as in Fig. 2b ;

Fig. 3c

as Fig. 3a but with the support plate swung down in the final position of the carriage; and

Fig. 3d

the embodiment according to Fig. 3c in a partially transparent front view looking like in Fig. 2d ,

In the figures of the drawing are details of two embodiments (with one-piece pivot shaft in the Fig. 1 and 2a to 2d or with two-part pivot shaft in the Fig. 3a to 3d the invention, electrically operated, usually automatic

Slicing machine 10; 30 for cutting slices of particular stranded cutting material, preferably food, represented.

The slicing machine 10; 30 each has a cutting device which comprises a rotatably mounted in a machine housing 11 , rotating in a cutting plane E circular blade 12 . Next belongs to the slicing machine 10; 30 a substantially flat support plate 13 with support surface for laying the Schneideguts, which is supported by a carriage 14, which is guided via a slide 14a along a rigidly connected to the machine housing 11 slide rail or sliding axis 15 parallel to the cutting plane E and parallel to the plane A of Platen 13 is linearly movable, wherein the support plate 13 of the carriage 14 by at least 90 ° from its working position away from the circular blade 12 is pivotally mounted.

As in the upper part of Fig. 1 it can be seen, the support plate 13 is in the illustrated vertical cutting machine 10 in the working position of a horizontal position in which it, for example via a screw, rigidly attached to the carriage 14. In the lower part of Fig. 1 as well as in the Fig. 2a or 3a, this attachment is in each case solved and the support plate 13 - tilted about a horizontal pivot axis s relative to the carriage 14 - usually for cleaning or maintenance purposes.

Alternatively, the disc cutting machine according to the invention, however, can also be embodied as an oblique cutting machine with a different tilt angle-in the case of embodiments which are not specifically shown in the drawing-there likewise being the possibility of pivoting the support plate there.

According to the invention, the support plate 13 of the carriage 14 is pivotally mounted in an out of the working position along the slide rail 15 driven out end position of the carriage 14 about the pivot axis s, which meets at a Verschwenkachsenwinkel φ between 60 ° and 90 ° to the cutting plane E, wherein the support plate 13 is locked in all other positions including the working position against pivoting. The Verschwenkachsenwinkel φ may in particular be between 70 ° and 85 °, preferably between 72 ° and 82 °.

As a rule, carriage foot 14a will be constructed in two parts. The carriage foot has an inner part 14b facing the machine housing and an outer part 14c facing away from the machine housing on. The two parts 14b and 14c of the slide foot 14a adjoin one another via an obliquely at an angle α = 90 ° - φ to the cutting plane E extending surface F and are relative to each other about the pivot axis s perpendicular to the surface F pivoted. In addition, usually a - not shown in the drawing - pressure spring be arranged so that the carriage 14 can be moved linearly in the end position only after overpressing this compression spring on the slide rail 15, in which then a pivoting of the pivotable part of the Carriage 14 about the pivot axis s is possible.

By means of a support pin 16 , the pivotable part of the carriage 14 is supported during the entire linear movement of the carriage 14 on the slide rail 15 against a surface B of the machine housing 11 slidably, said surface B is geometrically designed so that the support pin 16 only in the End position of the carriage 14 out of contact with the surface B device to release a pivoting of the support plate 13. This is especially good in the Fig. 2a to 2c and 3a to 3c recognizable.

Furthermore, a locking bolt 17 is provided, with which the pivotable part of the carriage 14 can be locked against pivoting. Not shown in particular in the drawing are embodiments in which the locking bolt 17 loaded with a compression spring: or can be determined by a thread.

The in the Fig. 1 and 2a to 2d illustrated embodiment is characterized in that the support plate 13 of the carriage 14 is mounted on a one-piece pivot shaft 18 through which the pivoting about the pivot axis s occurs, and that the Pivoting shaft 18 has a locking device which releases the pivot shaft 18 in response to the position of a stop plate 19 for pivoting or locked.

In contrast, in the Fig. 3a to 3d an embodiment of the invention shown in which the support plate 13 of the carriage 14 is mounted on a two-part pivot shaft 38 , through which the pivoting about the pivot axis s occurs. Not specifically shown are possible embodiments in which the pivot shaft comprises more than two parts. The two-part pivot shaft 38 has a coupling portion 38a , which engages with a pin or a spring in the end position of the carriage 14 in a recess or groove and thus an otherwise rotatable connection for rotation of the pivot shaft 38 releases.

Further, a stop plate 19 is provided for cutting thickness adjustment, which is linearly displaceable perpendicular to the cutting plane E, wherein the stop plate 19, the pivot shaft 18; 38 only in a linearly moved position of the carriage 14 geometrically releases for pivoting, in which the disc cutting machine 10; 30 has a cutting thickness setting smaller than zero, so that the stop plate 19, the circular blade 12 in the cutting plane E front side to the operator out towards geometrically concealed.

For this purpose, the pivot shaft 18 has a cam 181 which cooperates directly with the stop plate 19. The stop plate 19 is supported in the interior of the machine housing on a guide. Via a rotary knob 191, the stop plate 19 can be moved linearly perpendicular to the cutting plane to adjust a cutting gap between the cutting blade 12 and the stop plate 19 whose width corresponds to a desired slice thickness. The cam 181 is fixedly connected to the pivot shaft 18 and protrudes at the end thereof at a right angle from the longitudinal axis of the pivot shaft 18 from the side. In the in the Fig. 3a and 3b illustrated position of the stop plate 19, which corresponds to a slice thickness setting greater than zero, ie in which the cutting edge of the circular blade 12 is exposed, the cam 181 comes into direct contact with the Anschtagplatte 19 and a holder of the stop plate 19 and thereby blocks a pivoting of the pivot shaft 18th Only when the stop plate 19 is moved in front of the cutting edge of the circular knife 12, so at a slice thickness setting less than or equal to zero, as in the Fig. 2c and 2d shown, the stop plate 19, the cam 181 free and the pivot shaft 18 can be rotated.

The stop plate 19 can be actuated via an adjusting device by means of a rotary knob 191, wherein the passage region of this device 18 is sealed by the machine housing 11 at least splash-proof. For this purpose - in the drawing only schematically illustrated - sealing elements D may be provided.

Not specifically shown in the drawing are embodiments in which the Auffageplatte 13 has a juice groove for draining liquid in the support surface for the cutting material.

Claims (13)

1. Electrically driven cutting device (10; 30) for cutting slices of product, comprising a cutting arrangement including a circular knife (12) rotating in a cutting plane (E) and mounted in a machine housing (11), a carriage (14) carrying a support plate (13) with a support surface for depositing the cut product, which carriage (14) is guided parallel to the cutting plane (E) via a carriage foot (14a) along a slide rail (15) connected to the machine housing (11) and is linearly movable parallel to the plane (A) of the support plate (13), wherein the support plate (13) of the carriage (14) is mounted so as to be pivotable through at least 90° from its working position away from the circular knife (12), wherein the support plate (13) of the carriage (14) is mounted so as to be pivotable about a pivot axis (s) in an end position of the carriage (14) to which it has been moved linearly from the working position along the slide rail (15), and wherein support plate (13) is locked against pivoting in all other positions including the working position, characterised in that
   the pivot axis (s) intersects the cutting plane (E) at a pivot axis angle ϕ from 60° to 85°.
2. Cutting device according to Claim 1, characterised in that the pivot axis angle ϕ is from 70° to 85°, preferably from 72° to 82°.
3. Cutting device according to either of the preceding claims, characterised in that the carriage foot (14a) is constructed in two parts, preferably having an outer part (14c) and an inner part (14b).
4. Cutting device according to Claim 3, characterised in that the outer part (14c) of the carriage foot (14a) is connected non-rotatably to a pivot shaft (18) disposed along the pivot axis (s).
5. Cutting device according to Claim 3 or 4, characterised in that the two parts of the carriage foot (14a) abut one another via a face (F) disposed obliquely at an angle of α = 90°- ϕ to the cutting plane (E) and are pivotable relative to one another perpendicularly to the face (F) about the pivot axis (s).
6. Cutting device according to any one of the preceding claims, characterised in that a compression spring is provided and in that the carriage (14) can be moved linearly to the end position on the slide rail (15) only after bridging the compression spring, in which end position pivoting of the pivotable part of the carriage (14) about the pivot axis is possible.
7. Cutting device according to any one of the preceding claims, characterised in that a support pin (16) with which the pivotable part of the carriage (14) on the slide rail (15) is supported slidingly against a face (B) of the machine housing (11) is provided, this face (B) being configured geometrically such that the support pin (16) moves out of contact with the face (B) only in the end position of the carriage (14).
8. Cutting device according to any one of the preceding claims, characterised in that a locking pin (17) with which the pivotable part of the carriage (14) can be locked against pivoting is provided.
9. Cutting device according to Claim 8, characterised in that the locking pin (17) is biased with a compression spring or can be fixed by means of a thread.
10. Cutting device according to any one of the preceding claims, characterised in that the support plate (13) of the carriage (14) is mounted on a pivot shaft (18) by means of which pivoting about the pivot axis (s) is effected, and a locking device is provided which releases the pivot shaft (18) to pivot, or locks the pivot shaft (18), in dependence on a position of the abutment plate (19).
11. Cutting device according to either of Claims 4 and 10, characterised in that the pivot shaft (18) has at an end a catch (181) which cooperates directly with the abutment plate (19) or directly with a guide of the abutment plate in order to lock or release the pivot shaft.
12. Cutting device according to any one of Claims 4, 10 and 11, characterised in that the pivot shaft (38) is of two-part or multi-part construction.
13. Cutting device according to Claim 12, characterised in that the pivot shaft (38) has a coupling section (38a) which, in the end position of the carriage (14), engages with a dog or a key in a recess or groove, thereby connecting two parts of the pivot shaft (38) non-rotatably to one another.

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