EP0827816A1 - Slicing machine - Google Patents

Abstract

The cutter machine has a circular blade and the distance of the material rest (23) at right angles to the cutting plane (6) is adjustable by an adjustment device between a minimum distance and further distance. The setting device for the stop plate (7) is coupled to this adjustment device; so that when the stop plate is moved into the safety position, the distance of the material rest from the cutting plane is changed to the further distance and when the stop plate is moved into the cutting position the distance is changed to the minimum distance. The minimum distance of the material rest from the cutting plane is constant in each cutting position of the stop plate.

Description

The invention relates to a slicer, especially for cutting food, with a Machine housing, one mounted on the machine housing and circular knives driven by a knife drive unit, one for adjusting the slice thickness of the to be processed Cutting material perpendicular to the cutting plane of the Circular knife adjustable with an adjusting device Stop plate and one on the machine housing parallel to the Carriage slidably mounted to the cutting plane with a cutting material support, the stop plate made of a safety position in which the stop plate Cutting edge of the circular knife covers, in a cutting position is adjustable for cutting the material to be cut.

Slicers of this type require through appropriate protective measures cut injuries the operator during cutting and To prevent cleaning if possible. The handling should the machine remains simple and optimal Cutting conditions can be guaranteed.

A cutting machine is known from DE 44 29 628 A1, which has a locking device which pivots of the clippings slide from its working position only allows out into a cleaning position if at the same time the stop plate for the slice thickness adjustment to a value "below zero" (safety position) is set with the cutting edge of the circular knife covered by the front edge of the stop plate and so that it is protected against careless contact.

Since the stop plate in the safety position "under Zero the knife in the direction beyond the cutting plane of the slide, the one adjacent to the knife Sledge support for the material to be cut must be at least 2 to 3 mm apart to have this to touch the fixed Stop plate with the to and fro carriage or to avoid its cutting material support. This distance leads to deterioration of soft clippings Cut quality.

It is also a solution with a fixed cutting support known, which is fixed to the machine housing or the knife guard ring is attached, the upper edge of the material support lies flush with the sliced material support of the slide. Limit the circular knife diameter and a recessed side For reasons of space, the stop plate only has a small area Product support. That's why she just got over a supporting part for a small part of the total slide stroke Effect on the material to be cut. It is also only with Carriage with horizontal cutting material support can be used and not suitable for sled versions with V-shaped Cutting material supports that are self-centering Allow guidance of the material to be cut.

The invention has for its object an optimized Cutting material support with the smallest possible distance to Cutting plane of the circular knife over the entire stroke of the Can be reached without using the machine and worsen the safety aspects during cleaning.

This object is achieved in that the Distance of the material support perpendicular to the cutting plane by means of an adjusting device between a minimum distance and a further distance is adjustable, and that the adjustment device of the stop plate with the adjustment device is coupled so that when moving the stop plate in the safety position the distance the cutting material support to the cutting plane to the further distance and when the stop plate moves into one Cutting position the distance of the product support to Cutting plane is changed to the minimum distance.

It is crucial in the present invention that a Adjustment movement of the stop plate with an adjustment movement the adjustment device for adjusting the distance between the product support and the cutting level or circular knife level is made so that it is ensured that when the stop plate is moved into the safety position the distance of the product support to the cutting plane is enlarged and so a collision with the sled Cutting material support that can be moved back and forth parallel to the cutting plane is excluded with the stop plate.

According to the invention, the distance between Cutting material support and cutting level back to the minimum distance reduced as soon as the stop plate from the Safety position disengages and the collision described above can no longer occur.

At a minimum distance between the product support and the circular knife level or cutting plane becomes as small as possible Understand distance with the economically justifiable Measures ensure a trouble-free sliding back and forth Cutting material support parallel to the cutting plane allowed if the stop plate is in a cutting position and the slicer for making sliced meat is ready for operation.

The further distance that the product support from the Cutting level must be observed when the stop plate in the security position engages, just have to make sure that a collision of a reciprocating sled with sliced goods support with the stop plate is avoided. Further requirements are on the others Distance not to be judged. Of course, one is preferred keep the further distance as small as possible Too large displacement movements of the components against each other to avoid.

It is also not decisive for the present invention primarily whether the minimum distance and the further distance two precisely defined distances for each machine to the cutting plane, or whether these distances still slightly with a further movement of the Stop plate over the entire pane thickness setting range change for the possible snow positions. Crucial is in any case that with a position of the stop plate a small one in the respective cutting position Distance of the product support with respect to the cutting plane is produced, the sufficient support of the meat to be sliced can ensure.

To achieve the change in distance between the material support and separation level are two basic solutions to disposal. In a first embodiment the product to be sliced is placed on the circular knife or its Cutting plane moved and in a second embodiment the material support remains in its position during the circular knife moves towards the cutting material support once the stop plate is out of the safety position disengages and is brought into a cutting position.

The minimum distance of the product support to the cutting plane is preferred in spite of the above Cutting position of the stop plate is essentially constant be.

Choosing the first embodiment in which the cutting material support is moved relative to the circular knife to the distance Magnifying perpendicular to the cutting plane is preferred the cutting material support together with the slide between a position with the minimum distance and one Position with the specified further distance using the Adjustment device can be moved back and forth. This embodiment leaves simpler coupling mechanisms of the adjusting device and the adjusting device.

It is particularly important to remember that the adjustment device for the cutting material support one with respect to their Eccentrically pivotable longitudinal guide rail which includes the slide parallel to the cutting plane slidably mounted. Through a pivoting movement the eccentrically mounted guide rail can simultaneously an approach or a moving away of the product support together with the slide from the cutting plane in be accomplished in a simple manner. Here, the Guide rail in particular have a cylindrical shape, which are arranged eccentrically at both ends Pin is rotatably mounted in the machine housing.

A particularly simple coupling or transmission of the movement the stop plate on the product support over a lever mounted on the guide rail, when the stop plate is moved into the safety position from a driver of the adjusting device of the stop plate is operated and the cutting material support together with the slide at a further distance from the cutting plane emotional. The lever turns the eccentrically mounted guide rail and thus ensures movement of the slide including the cutting material support perpendicular to the Cutting plane.

The aforementioned driver can be part of a cam be designed to control the cutting position the stop plate is used. This can be provided be that the driver as a radially arranged groove, for example in the cam, is formed in which lever can be engaged. When the Adjustment device, the lever is then over the driver led to the position to be taken. The swivel movement the lever can be limited by a stop be.

In a preferred embodiment of the invention the lever after release by the driver on the scope the cam disc. The lever is preferred fit elastically biased against the circumference.

A particularly preferred geometry can then be assumed if the pivot axis of the guide rail and its central axis with a medium slice thickness setting the Stop plate in one to the cutting plane essentially parallel plane. The guide rail is only between swings two defined positions back and forth, this geometry should, of course, essentially prevail every slice thickness setting of the stop plate.

As an alternative to the previously described embodiment the driver also has a fang on the circumference of the cam include.

The advantages that can be achieved with the invention are in particular in that the cutting conditions over the whole Slice thickness setting range through the minimum distance between the cutting plane of the circular knife and the product support are optimized. This particularly affects soft cuttings such as sausage, cheese, fish, cheap on the Cut quality. It is avoided that the material to be cut one-sided during the cutting process due to the cutting pressure bent downwards or into a gap between them that is too wide Cutting material support and circular knife retracted and that Knife is pushed sideways. This will make one unclean Avoid formation of corners on the cut slices. In addition, the more favorable cutting conditions Drive energy saved on circular knife.

Coupling the slice thickness adjustment device with the positioning of the material to be sliced or the carriage another advantage. The cutting gap optimization thus achieved between circular knife and cutting material support achieved without additional manipulations by the operator.

In addition, the invention is universal on all vertical and Bevel cutting machines can be used.

Regarding the cutting material support and the lateral guidance of the material to be cut on the carriage can be any known Shapes such as L-shape, U-shape or V-shape can be used. At the invention proposes a solution for the V-shape for the first time, because with this the known, at the state of Technology already mentioned, attached to the machine housing Cuttings support cannot be used because of the lower edge of the material to be cut depending on the diameter of the material to be cut Height is fixed.

Fig. 1

Eine Vorderansicht der erfindungsgemäßen Schneidemaschine;

Fig. 2

eine Vorderansicht gemäß Fig. 1 mit aufgeschnittenem Maschinengehäuse - Anschlagplatte in der Scheibendicken-Einstellposition "unter Null" (Sicherheitsposition);

Fig. 2a

Einzelheit aus Fig. 2, vergrößert gezeichnet;

Fig. 3

Teilvorderansicht wie Fig. 2, jedoch in der Scheibendicken-Einstellposition "über Null";

Fig. 4

Teilansicht in Pfeilrichtung "X" gemäß Fig. 3;

Fig. 5

Vorderansicht eines 2. Ausführungsbeispiels in der Scheibendicken-Einstellposition "unter Null"; und

Fig. 6

Vorderansicht des 2. Ausführungsbeispiels in der Scheibendicken-Einstellposition "über Null".

The following description of preferred embodiments of the invention serves in conjunction with the accompanying drawings for further explanation. Show it:

Fig. 1

A front view of the cutting machine according to the invention;

Fig. 2

a front view of Figure 1 with a cut open machine housing - stop plate in the slice thickness setting position "below zero" (safety position);

Fig. 2a

Detail from Figure 2, drawn enlarged.

Fig. 3

Partial front view as Figure 2, but in the slice thickness setting position "above zero".

Fig. 4

Partial view in the direction of arrow "X" according to FIG. 3;

Fig. 5

Front view of a second embodiment in the slice thickness setting position "below zero"; and

Fig. 6

Front view of the second embodiment in the slice thickness setting position "above zero".

1 for food, e.g. Sausage, cheese, fish or the like a machine housing 2, on which a motor-driven Circular knife 3 is rotatably mounted. On the machine housing 2 is a spoke wheel-shaped knife protection ring 4 stationary attached, the cutting edge of the circular knife 3 for security reasons with the exception of the front cutting area 5 encloses in a ring. In the cutting area 5, one is parallel to the cutting plane 6 of the circular knife 3 extending stop plate 7 for adjusting the slice thickness relative to the knife or cutting plane using a slice thickness adjustment device 8 arranged. The well-known Slice thickness adjustment device 8 can be in an extreme setting to a slice thickness "below zero" (for example approx. -0.5 to -2 mm) can be set (safety position).

In this position, the front edge of the stop plate covers 7 the cutting edge of the circular knife 3 in the front Cutting area 5 and together with the knife protection ring 4 protection against accidental contact over the entire circumference the circular knife 3.

A carriage 9 for receiving a not shown Material to be cut can be pushed back and forth along the circular knife 3, parallel to the knife or cutting plane. The The material to be sliced is lying on the carriage 9, rotating Circular knife 3 fed and abutting the stop plate 7 sliced.

The cutting plane 6 of the circular knife 3 can be inclined to the installation surface the cutting machine 1 at a certain angle be inclined to the vertical, as shown in Fig. 1 (Bevel cutter), or arranged perpendicular to the installation surface be (vertical cutter).

The carriage 9 is rigidly connected to a carriage foot 10 and can be attached to a sled base 10 Swivel axis 11 from its working position shown in Fig. 1 in a cleaning position indicated by dash-dotted lines 9 'can be pivoted away.

From Fig. 2 it can be seen that the sled base 10 with a Carriage guide 12 is articulated, which perpendicular to the image plane on one on the machine housing 2 Guide rail mounted on both sides in the machine housing 2 or axis 13 is slidably guided and by means of one also rigidly attached to the machine housing 2 Track 14 between a roller 15 and a locking pin 16 is secured against rotation.

The swiveling away of the carriage 9 is generally for safety reasons only in the slice thickness setting position shown in FIG. 2 "below zero" (security position) possible at which the front edge of the stop plate 7 covers the cutting edge of the circular knife 3. In the Slice thickness setting position "above zero" (cutting positions), i.e. over the entire pane thickness setting range, e.g. from 0.1 to 25 mm slice thickness, the swinging away of the carriage 9 by means of a known and locking device, not shown, prevented.

The movement of the stop plate 7 for setting the In the exemplary embodiment, the disk thickness is a cam disk 17 arranged with a known end face Spiral groove 18 determined. The stop plate 7 is with a stop plate guide 19 firmly connected and fixed to the housing attached guide axes 20 perpendicular to Cutting plane 6 of the circular knife 3 is slidably mounted. A driver pin fastened in the stop plate guide 19 21 slides positively in the spiral groove 18.

The cam disc 17 is together with the disc thickness adjusting device 8 on a common axis with the Pivotal point 22 attached.

The slope of the spiral groove 18 with respect to the pivot point 22 the slice thickness adjusting device 8 is designed that when turning the adjusting device 8 against Clockwise, from the position shown in Fig. 2, the stop plate 7 moves to the left, i.e. from the sledge 9 moved away and first the cutting edge of the Circular knife 3 releases and then an ever increasing Distance between the cutting edge of the circular knife 3 and the stop plate 7 arises, corresponding to the one to be set Section thickness. An example with a slice thickness setting 3 shows "above zero".

The cutting material support 23 of the carriage 9 is in the safety position "below zero" of the stop plate 7, according to Fig. 2a distance "c", at least 2 to 3 mm from the cutting plane 6 of the circular knife 3 removed. This minimum distance is made up of the minimum overlap "a" of the knife cutting edge through the stop plate 7 with min. 1 to 1.5 mm and the minimum gap "b" with 1 to 1.5 mm between Stop plate 7 and the reciprocating material support 23 of the carriage 9 to touch the two Parts taking into account manufacturing tolerances and To prevent deformation forces during the cutting process.

The distance c leads to softer material to be cut, e.g. Sausage and cheese to a deterioration in cut quality, because the material to be cut passes through during the cutting process the cutting pressure is bent on one side, or the material to be cut drawn into the gap and the knife 3 pushed sideways becomes. This creates disadvantageous lubrication when cutting, or an unclean tip formation in the cut Slices.

In order to prevent this, according to the invention, the pane thickness adjusting device is used 8 an adjusting device coupled, in which the product support 23 in the setting range "over zero" e.g. from 0.1 to 25 mm slice thickness an optimal minimum distance c ', e.g. 0.5 mm to the cutting plane 6 of the circular knife 3 is brought. The adjustment device is visible in Figs. 3 and 4.

The guide axis 13 is at its ends by means of eccentric pins 24 rotatably supported in the machine housing 2. In the axial direction the guide axis is virtually free of play and is in contact the inside of the machine housing 2. A lever 25 is firmly connected to the guide axis 13. The cam 17 has a radial groove 26 on its circumference, in which the lever 25 engages positively as long as the Slice thickness adjusting device 8 in the safety position "below zero", according to FIG. 2, is set.

The circumference of the cam disc which is concentric with the fulcrum 22 17 points directly next to the radial groove 26 a fang 27. When turning the slice thickness adjustment device 8 counterclockwise from the in Fig. 2 shown position moves out in the radial groove 26 positively engaging lever 25 as long with until it reaches its position shown in Fig. 3 and strikes a stop pin 28. Doing so simultaneously the guide axis firmly connected to the lever 25 13 pivoted and caused by the eccentric journal bearing 24 an approximately vertical movement of the slide 9 in Direction to cutting plane 6 of circular knife 3.

The eccentric pin 24 are in their position to the center the guide axis 13 placed so that at a medium Slice thickness setting between the "below zero" position and the max. Slice thickness, an imaginary connecting line from the center of the guide axis 13 to the center the eccentric pin 24 approximately parallel to the cutting plane 6 of the Circular knife 3 runs.

Approximately at the same time as the slice thickness setting changes to a value "above zero", e.g. 0.1 mm slice thickness, the lever 25 reaches the stop pin 28 and retains it for the remaining angle of rotation of the pane thickness adjustment device up to the max. adjustable slice thickness 3, with the free end of the Lever 25 with little play on the circumference of the cam disk 17th slides along and the lever 25 this position, due to the cam disc 17 acting as an upper stop, inevitably maintains.

When turning back the pane thickness adjustment device 8 clockwise to the safety position of the stop plate 7 "below zero" the free end of the lever 25 becomes approximately at cutting thickness "zero" detected by the canine 27 and the Lever 25 can be immersed in the radial groove 26 and Swivel upwards until the slice thickness adjustment device 8 again the end position "below zero" according to Fig. 2 has reached. At the same time, the sled gives way 9 again to the predetermined further distance c between Cutting plane 6 of the circular knife 3 and cutting material support back.

A second exemplary embodiment of the invention is shown in FIG. 5 and 6. The following description is limited the main differences from the first execution 2 and 3.

In the second embodiment, the carriage 9 is in the direction not adjustable perpendicular to the cutting plane 6 of the circular knife 3. The circular knife 3, however, is perpendicular to Cutting level 6 adjustable. The adjustment is with the Slice thickness adjustment device 8 coupled.

5 shows a cutting machine in the safety position with the slice thickness setting "below zero". The cam disc modified on the circumference compared to the 1st version 117 now has a cam 130. One in the machine housing 102 in a storage 131 pivotally mounted Lever 132 lies on one side on cam 130 on. The other side of the lever 132 is articulated over one Storage 133 connected to the linkage 134, which in turn articulated with a toggle mechanism 135 is. A compression spring acting on the linkage 134 136 ensures the non-positive contact of the lever 132 on cam 117. The toggle mechanism 135 is supported on one side in a bearing 137 in Machine housing 102 from. On the other hand, he's in a bearing 138 connected to the knife drive unit 139. The knife drive unit 139 consists of a drive motor 140, for the circular knife 3, a knife storage 141, the circular knife 3 and the knife protection ring 4 and is perpendicular to the cutting plane 6 in the machine housing 102 of the circular knife 3 slidably mounted.

When turning the adjusting device 8 counterclockwise out of the position shown in Fig. 5 6 moves the stop plate 7, as in the first embodiment to the left. At the same time the lever 132 slides down from the cam 130 onto the deeper concentric outer contour 142 of the cam 117. The pivoting movement of the lever 132 is from the compression spring 136 supports and via the linkage 134 transferred to the toggle mechanism 135. This will pressed up to a stop 143 and causes one axial displacement of the knife drive unit 139 in the direction of the slide 9 perpendicular to the product support 23.

The cam 130 of the cam plate 117 is designed that about the same time as the transition of the slice thickness setting to a value "above zero", e.g. 0.1 mm slice thickness, the lever 132 leave the cam 130 and the has reached concentric outer contour 142. Via the toggle mechanism 135 has the knife drive unit at the same time 139 moved towards carriage 9, see above that there is a minimal cutting gap c 'between the Cutting plane 6 of the circular knife 3 and the cutting material support 23 of the carriage 9 adjusts.

When turning the slice thickness adjusting device 8 up to the max. Slice thickness remains the minimum cutting gap c 'constant between circular knife 3 and product support 23 receive.

Claims (12)

Slicer with a machine housing (2), a circular knife (3) mounted on the machine housing (2) and driven by a knife drive unit (139), one to adjust the slice thickness of the material to be processed perpendicular to the cutting plane (6) of the circular knife (3) with an adjusting device adjustable stop plate (7) and a slide (9) mounted on the machine housing (2), which can be pushed back and forth parallel to the cutting plane (6), with a cutting material support (23), the stop plate (7) being adjustable from a safety position in which the stop plate (7) covers the cutting edge of the circular knife (3) into a cutting position for cutting the material to be cut,
characterized in that the distance between the material support (23) perpendicular to the cutting plane (6) can be adjusted by means of an adjusting device between a minimum distance (c ') and a further distance (c), and that the adjusting device of the stop plate (7) is coupled to the adjusting device in such a way that when the stop plate (7) moves into the safety position, the distance of the product support (23) from the cutting plane (6) to the further distance (c) and at one Movement of the stop plate (7) into a cutting position the distance of the product support (23) to the cutting plane (6) is changed to the minimum distance (c '). Slicer according to claim 1, characterized characterized in that the minimum distance (c ') of the Cutting material support (23) from the cutting plane (6) in every cutting position of the stop plate (7) constant is. Slicing machine according to claim 1 or 2, characterized in that the cutting material support (23) if necessary together with the slide (9) between a position with the minimum distance (c ') and one Position with the further distance (c) using the adjustment device can be moved back and forth. Slicer according to one of claims 2 or 3, characterized in that the adjusting device for the cutting material support (23) with respect its longitudinal axis is mounted so that it can be pivoted eccentrically Guide rail (13) comprising the carriage (9) slidably mounted parallel to the cutting plane (6). Slicer according to claim 4, characterized characterized in that the eccentrically mounted guide rail (13) has a lever (25) which at Engage the stop plate (7) in the safety position from a driver of the adjusting device (8) the stop plate (7) is actuated and the cutting material support (23) together with the carriage (9) in the moved further distance (c) to the cutting plane (6). Slicer according to claim 5, characterized characterized in that the driver as part of a cam (17) is formed. Slicer according to claim 6, characterized characterized in that the driver as a radial arranged groove (26) is formed. Slicer according to one of claims 4 to 7, characterized in that the pivot axis of the Guide rail (13) and its central axis at one middle slice thickness setting of the stop plate (7) in a substantially parallel to the cutting plane (6) Level. Slicer according to one of claims 5 to 8, characterized in that the lever (25) in its pivoting movement is limited by a stop (28) is. Slicer according to one of claims 5 to 9, characterized in that the lever (25) after Approval by the driver on the circumference of the cam disc (17) is present. Slicer according to one of claims 5 to 10, characterized in that the driver a Catch tooth (27) on the circumference of the cam disc (17) comprises. Slicing machine according to claim 1 or 2, characterized in that the circular knife (3), if necessary together with the knife drive unit (139) compared to the product support (23) between a position with the minimum distance (c ') of the product support (23) to the cutting plane (6) and a position the product support (23) to the cutting plane (6) with the further distance (c) by means of the adjusting device is adjustable.

Images