DE3617480A1 - Machine for removing the rind from bacon - Google Patents

Abstract

A machine (1) for removing the rind from bacon has a drawing roller (5) which conveys the material from which the rind is to be removed towards a cutting edge (7). The cutter is seated in a cutter holder (8) which is held by angular rockers (12). The rockers have a pivot bearing (13) which is situated below and upstream of the drawing roller (5) in the conveying direction, so that the cutter (9) is moved closer to the drawing roller (5) when the rockers (12) are pivoted in the conveying direction of the material from which the rind is to be removed. The rockers (12) are loaded by means of restoring springs (14) in the direction opposite to the conveying direction of the material from which the rind is to be removed. This results in the formation of an automatic first cutting device, in the case of which the unloaded cutting edge adopts a position further away from the drawing roller (5) and is brought by the material from which the rind is to be removed into an operating position which is closer to the drawing roller (5). The pivot bearing (13) is mounted so as to be vertically adjustable transversely to the conveying direction of the material from which the rind is to be removed and is loaded in the direction of pressure exerted on the cutter, towards the drawing roller. This means that the cutter can follow different rind-removing sequences virtually automatically when it is in its operating position. The rockers (12) take the form of inherently rigid connections between the pivot bearing (13) and a cutter holder bearing. Direct connection of the following device for this pivot bearing results in a compact design which can be easily accommodated in the machine casing and also the possibility of a ... Original abstract incomplete. <IMAGE>

Description

The invention relates to a bacon derinding machine or the like. with a good to be dewaxed against a knife edge conveyor roller and an adjustable knife holder (cf. esp. the preamble of the 1st claim).

Such machines are used for derinding bacon, for ent skinning meat or fish, for cutting bacon plates etc., but especially used for derinding bacon and therefore below also "bacon derinding machine" or called "machine" for short.

Such machines have been known for a long time, but they do significant disadvantages. So is through DE-PS 12 93 635 a bacon derinding machine of the type mentioned be knows, in which a standing in the gate position, unbela constant cutting edge in the crown area of the draw roller so far above the rind to be separated indicates that the cutting edge is initially in the softer layer of bacon compared to the rind can. The debris advancing with the help of the pull roller presses then the edge of the chill knife against one on one adjustable knife holder acting restoring force backwards as well as closer to the pull roller jacket in the downward position.  The knife edge is cut from the gate position led closer to the pull roller jacket and the derinding operation carried out. A major disadvantage of this measure machine consists in that the strength of the black to be observed layer does not automatically move during derinding process controls, but one of the desired strength of the De-anticipation of the respective setting of the knife Hand must be done.

To avoid disadvantages this machine is also already a bacon derinding machine with an adjustable measuring water holder as well as a pull roller, in which the Knife holder designed as a seesaw and at the swiveling end a lever arm pair loaded with actuating force is mounted, whereby the knife edge is approximately below the rocker pivot point and to fix the front, lower cutting edges position on a feed table facing rocker stops are provided, which are on at least one bearing surface of the Bacon derinding machine or on at least one setting support the lever (see DE-PS 12 78 873). Such a machine has the advantage that the knife edge at over the Feed direction of changing skin thickness better in each case automatically adjust the transition zone between bacon and rind can. The rind is used to control the location of the rocker-like knife used. In addition, the The aforementioned adjustment lever on the front, the feeder table-facing rocker part acts that this machine so probably work with a well-adjustable "rind pull" as well as for cutting bacon plates can and the rocker-like knife holder is comparative easy to install and remove, what a cleaning of the Bacon derinding machine is essential. This in itself partial construction, however, points to the practical hand have also disadvantages. It should be noted that the Good to be treated is a natural product with accordingly different dimensions and properties. For example  is the thickness of the bacon rind usually neither over the Length of the piece of bacon (i.e. in the feed direction) still over its width (i.e. in the direction of the longitudinal axis of the pull roller) evenly. The resistance, the older one, is also deposited opposes the entry of the knife edge different from fresh bacon and older, aged Bacon can be the layer of rind when adjusting the offshoot break strength easier. Concerning. this problem may ver Avoid repetitions on the introduction of the description referenced DE-PS 12 78 873. Described there bene machine has u.a. the advantage that each arm of the lever arm pair, in which the rocker-like knife holder with laterally projecting bolts la against the action of two different resets forces can be pivoted independently of one another, so that the knife holder also extends across the width of the bacon rind, i.e., tilting about along the apex line of the pull roller and therefore good at different thicknesses of bacon rind can adjust. On the other hand, the machine has according to DE-PS 12 78 873 also with regard to their mode of operation and operation Noticeable disadvantages. In particular there are two different the control lever required; one is used to adjust the Pivot point of the pair of lever arms, which also indirectly from the knife holder or the knife edge to the chilled material exerted forces are influenced or a lever position is adjustable in which the knife holder from the machine can be removed, another lever is necessary for setting the thickness of the rind train or the thickness of sides of bacon to be cut.

You also already have a bacon derinding machine with a conveyor roller and a swiveling knife holder create that with the underside of the rind also supported on the separated rind and the just if it is held down by spring-loaded swivel arms.  

This machine has a guide for the knife holder seen the cutting edge of the cutting knife along a cure ve leads, which is constant from the gate position and in same sense of curvature as the jacket of the conveyor roller this nä hert and this knife holder is at the upper ends of the swivel arms held by suspensions, one by the conveyor roller Allow directional movement against the contact pressure of springs (see DE-PS 22 09 605). This way you can reach also a fe Adjusted knife holder or cutting knife to a different black across the width of the decay material thickness and it should also be the height of the knife automatically cut the thickness of the rind and its lengths Seen expansion, adjust and a clean and enable reliable gate. However, this also points Bacon derinding machine still has several disadvantages. So is to remove the knife holder from the pull roller special lever and associated adjustment mechanism necessary, weh rend additional adjustment means are required to regulate the forces with which the knife holder on the Ab attacking food. Thereby is the attitude or the change len the forces in the latter process by comparison of course, since it is independent with the help of nuts and lock nuts dependent on each other on two different sleeve-like openings Suspensions for the knife holder must be carried out. About this is what these sleeve-like suspensions stand in the area of Top of the machine in the manner of horns in working position diagonally upwards, which e.g. when cleaning the entire machine, but may also be a hindrance to their operation. Also will the area of the conveyor roller by the one folded down for cleaning Knife holder not easily accessible because of the knife holder too When folded down, it is still close to the pull roller det. However, thorough and frequent cleaning is a must Bacon derinding machines, and especially in the area of whose pull roller is very desirable.

There is therefore the task of a bacon derinding machine or the like. to create the type mentioned at the beginning under largely avoiding the disadvantages of known machines clean, economical cutting and subsequent Wait and see, if necessary work with a rind train or a cut that of bacon plates with ease of use and good rice possibility of cleaning the machine is possible, duly the peculiarities of the product to be awaited (under different skin thickness, different hardness depending on Storage time etc.) is taken into account.

The solution according to the invention consists of a bacon machine according to the preamble of the first claim in particular the fact that the swing arm storage for additional ver change the distance between the knife edge and the Traction roller movable and for a movement of the knife edge is acted upon by the pull roller. By such Training the machine in terms of knife holder the pull roller well the different needs of each adapted to abwart goods to be processed and it can at the same time by spring or restoring forces from Knife holder or from the knife edge on the material forces are set. The remains possibility known from the machine according to DE-PS 12 78 873 received with an influence on the swing arm bearing Adjusting lever to set a lifting position at the same time, in which the entire rocker-like knife holder can be removed from the machine so that this, named easily accessible for cleaning in the area of the pull roller is quickly ready for operation again.

A method and a device are already known to control the knife position on a derinding machine ne (DE-OS 32 13 730). There are however for the change of  Knife position from the drive to the operating position or Conversely, special, controllable control units such as pneu Switching units that can be actuated either matically or electrically Lich. These can be especially in the case of repairs or Adjustment in the rough butcher shop and the main one there Personally employed people raise problems with the fat removal machine should be avoided.

According to a development of the invention, the swing arm is storage connected to an adjustment device for adjustment the knife or its knife holder into a recess order and different, possibly spring-loaded jobs lungs. The different working positions gen serve in particular to adapt to different Abnachwartgut and also for the setting of the so-called rind pulled and in the raised position is the removal of the whole Knife holder with knife, e.g. B. for cleaning purposes, possible. According to one embodiment, the adjustment device also has one end engaging the swing arm pivot lever open at the other end by means of return springs in the In the sense of a movement of the knife towards the pulling roller are struck. Such an adjustment device is constructive easy to implement and it can also be used with the Connect "automatic cut" as a compact unit.

The He attacking the pivot bearing expediently runs cover the swivel lever approximately parallel to the lever position to the feed level of the decaying material. From this arrangement he desirably arises approximately across the plane of the Abstellgut or its feed level adjustment direction especially for practically automatic adjustment of the knife to the course of the rind.  

Advantageously, the rockers point out from their below and in the direction of transport of the material to be quenched before Pull roller arranged pivot bearing, one in front of the train roll upward extending arm part and there then run an angled one towards the knife holder another swing arm part. With this arrangement the Swingarms carrying knife holders are the available space conditions well exploited and this is also a Convenient connection to the swivel lever of the adjustment device possible, this facility then also in one place the machine is easily accessible for an operator is.

Additional embodiments of the invention are in the others Subclaims listed. Below is the invention in Embodiments explained in more detail. It shows:

Fig. 1 is a side view of a bacon derinder,

Fig. 2 is a side view in the region of the Abschwartstelle with provided for a gate Automatic and Nachstellautoma tik functional parts,

Fig. 3 is a partial view in FIG. 2 shown arrangement, but seen here in the direction of arrow Pf 4 from FIG. 2,

Fig. 4 is a side view of a union in befind gate position with draw roller diameter and swinging holder for the knife,

Fig. 5 is a perspective view of the automatic to a gate and a Nachführautomatik associated functional parts,

FIGS. 6 to 8 are side views of an adjustment device in difference current operating positions,

FIG. 9 is a somewhat schematic illustration of a portion of a Derinding with tioned in different Stellun gen befindlichem knife as well as different posi pressure roller,

Fig. 10 is a side view of a pull roller with a knife and indicated, acting on the knife forces and

Fig. 11 is a view of a locking device for fixing an adjusting device.

A bacon derinding machine 1 shown in FIG. 1 has a feed level 3 , vzw on the top of its machine frame 2 . with a conveyor belt 4 , at the feed end of a pull roller 5 connects. In this draw roller 5 , a piece of bacon 6 to be de-saused is guided against the cutting edge 7 of a knife 9 held by a knife holder 8 . Above the pull roller 5 there is still a pressure roller 10 which presses the piece of bacon 6 in the bend area against the pull roller 5 . The de-anticipated piece of bacon can, as can also be clearly seen in FIG. 2 , be removed at the rear end of the machine via a further conveyor belt 4 a , while the bacon rind 11 is transported away between the knife holder 8 and the pull roller 5 .

The bacon derinding machine 1 is equipped with a so-called automatic gating, by means of which the knife cutting edge de is brought into a gating position prior to the beating process, where the cutting edge 7 is at an increased distance from the outside of the draw roller 5 , as is also good in FIG. 4 and 9 is recognizable. For this purpose, the knife holder 8 is mounted in laterally engaging wings 12 , which in turn have a lower, lower than the draw roller 5 , common pivot bearing 13 . To this rotary bearing 13 , the knife 9 or its knife holder 8 can perform a swiveling movement, in the starting position shown in FIG. 4, the knife edge 7 approaches steadily and in the same direction of curvature as the jacket of the pull roller 5 .

As a result, the knife 9 moves from the gate position into a stop mode. The position of the knife 9 adjusts itself automatically to the rind thickness.

In order to bring the knife 9 back into the cut position after the beating process, return springs 14 engage the rockers 12 .

As already mentioned, the knife 9 automatically adapts to the course of the bacon rind 11 during the swarting process. This requires a suitable pressurization of the knife 9 towards the pull roller 5 . This is according to the invention. thereby achieved that the swing arm bearing 13 movable gem. the double arrow Pf 1 in Fig. 2 is mounted, at the same time for the operating position of the knife a force application for a movement of the knife edge 7 to the train roller 5 is provided. In the exemplary embodiment, the rotary bearing 13 is attached to the ends of pivoting levers 15 , which in turn have wrestling devices 16 connected to the machine frame 2 . The attacking the pivot bearing 13 lever end of the pivot lever 15 extends up to the lever bearing 16 approximately horizontally or parallel to the feed plane of the bend well, so that when pivoting the lever 15 ent speaking stroke movement acc. the double arrow Pf 1 . The swivel levers 15 are designed to be angled in their longitudinal extent, the outer lever part 17 remote from the bearing in relation to the lever bearing 16 being angled downward. Through this design, especially favorable space conditions are also sufficient for a still to be described, attacking the pivoting levers 15 adjusting device 18 . As can be seen in Fig. 5, the parts shown in Fig. 2, in particular the rocker arms 12 , the pivot lever 15 and. Like. The train roller 5 arranged on both sides. The knife holder is thus mounted on the side and, if necessary, can also perform lateral tilting movements, tilting from a parallel position to the pull roller.

The end of the pivot lever 15 facing away from the pivot bearing 13 is acted upon by springs 19 in the direction of the arrow Pf 2 , so that pressure is exerted on the knife 9 in the direction of the pull roller 5 via the lever 15 and the rockers 12 . As a result of this pressurization, the position of the knife 9 automatically adapts to the course of the bacon rind 11 , so that a largely residue-free, clean separation of the bacon rind 11 from the bacon piece 6 takes place. The knife can adapt well to the rind thickness in both the longitudinal and transverse directions.

The preloading of the springs 19 can be changed by the adjusting device 18 in order to adapt to different pieces of bacon. In Figs. 6 to 8 different positions of the adjuster 18 with different spring preloads and positions of the pivot lever 15 are shown. FIG. 7 corresponds to the neutral sectional position also shown in FIG. 2, while FIG. 8 shows a position with increased spring preload acting on the pivoting lever 15 . Fig. 6 finally shows a position in which the knife holder 8 is so far from the pull roller 5 that it z. B. can be removed for cleaning purposes. In addition, between the cutting position according to FIG. 7 and the lifting position according to FIG. 6, one or more intermediate positions, either fixed or stepless, can be provided, in which the knife is a fixed distance from the pull roller for cutting bacon plates and the like. The like. In particular, the Fig. 3 u. 5 show that the rotary bearing 13 , the lever bearing 16 and also an eccentric bearing 20 to be described are formed by shafts 21 to 23 which extend approximately over the width of the draw roller 5 . The lever bearing shaft 22 and also the eccentric bearing shaft 23 are attached to the machine frame 2 , while the rotary bearing shaft 21 is connected to the lower ends of the rockers 12 . The rotary bearing shaft 21 can serve as a rigid bearing connection between the rockers 12 or as free bearing points for each rocker 12 .

The adjusting device 18 has the eccentric bearing shaft 23 in a rotationally fixed and eccentrically connected eccentric disks 24 , which are rotatably mounted in sliding pieces 25 . The sliding pieces 25 are connected to the push rods 26 , which in turn reach through the ends of the pivot levers 15 remote from the pivot bearing in the pivot direction. The pivot levers 15 here have a sliding guide so that the push rods 26 and the pivot levers 15 can be displaced relative to one another in this region. The connection in the direction of actuation takes place via the springs 19 which are supported on the one hand on the free ends of the push rods 26 facing away from the eccentric discs 24 and on the other hand on the pivot levers 15 . In the exemplary embodiment is screwed as Abstützauflage for the springs 19 on the free end of the push rods 26, a nut 27, to be made by the basic prestress of the springs 19 and can be adjusted.

In the position of the adjusting device 18 shown in FIG. 5, also corresponding to FIG. 8, the sliding piece 25 is in its uppermost position according to the arrow Pf 3 , so that the springs 19 accordingly act on the pivot levers 15 with increased pretension from the underside . Correspondingly, the knife 9 also has an increased pressure on a bacon rind 11 in the direction of the pull roller 5 . For presetting the spring preload, for setting different operating positions u. The like. A hand adjusting lever 28 is provided on an eccentric disk 24 . As shown in FIG. 11, this can be provided with a locking device 29 , so that the setting device 18 is fixed in the respectively selected position. For actuation, the lever can be pulled outwards transversely to the pivoting direction, then brought into the desired position, and the locking then takes place by releasing the lever.

In the position of the adjusting device 18 shown in FIG. 6, the pivot levers 15 and thus also the rockers 12 are pivoted to such an extent that the knife holder 8 can be removed. In Fig. 5 it can be seen that the knife holder is tiltably mounted in the upper rocker arm parts 30 . The knife holder 8 , which is also referred to as a blade bar, has protruding bearing bolts 31 on its lateral front ends, which engage in approximately L-shaped, an upper open edge insertion opening 32 with a bearing opening adjoining it to the rear. This design of the knife holder mounting ensures that the latter is held securely in the operating position, in particular also by the backward force acting on it by the piece of bacon to be removed, but at the same time, in the raised position ( FIG. 6), removal of the Knife holder 8 with knife 9 is possible by pushing it slightly forward and then removing it upwards. Furthermore, in this storage, a desired tiltability of the knife holder 8 is advantageously also possible at the same time, as a result of which it can adapt well to differences in thickness in the width of the bacon rind. A tilt stop 34 is provided to limit the tilting movement. The wings 12 are formed as an angle lever and have, starting from its underneath, and in the transport direction (arrow Pf 4) of the Abschwartgutes before the drawing roller 5 arranged rotary bearing 13 a first, in front of the draw roller upwardly extending Schwingenarmteil 30 a on to which the connected to the knife holder 8 swing arm part 30 connected. This configuration and arrangement of the rockers 12 results in favorable space conditions also in connection with the adjusting device with the pivot levers 15 and the adjusting device 18 that follows in the rotary bearing 13 . Thus, in the bacon derinding machine 1 according to the invention, the automatic tracking system for adapting the knife to the course of the bacon rind 11 and also the automatic gating are combined in a compact assembly and used at one point on the machine that is largely free of other assemblies, so that there is also a clear overview Construction results.

FIG. 9 also schematically indicates how the position of the pressure roller 10 arranged above the pull roller 5 can be changed. This is indicated by the arrows Pf 5 and 6 . The force relationships which arise on the knife 9 under the action of the pressure roller 10 and a piece of bacon 6 to be removed are indicated in FIG. 10 by the force vectors shown.

Due to the inventive design with the intended design assignment of "automatic bleed" and "After automatic guidance" there is the considerable advantage that from one point (lever 28 ) from both different tactile sensitivity with different spring preloads (downward position), as well as different operating positions for cutting of bacon plates of different thicknesses (rind pull) are adjustable. In addition, a so-called lifting position can also be set for removing the cutter bar. All of these settings can be made in one-hand operation with the actuating lever 28 .

The locking device 29 ( FIG. 11) has tensioning disks 36 which can be acted upon by the guide sleeve 35 and which can be axially displaced by the adjusting lever 28 and which, in the locked position shown in FIG. 11, fix the shaft 23 against the fixed part 37 . By actuating the actuating lever 28 in the direction of arrow Pf 7 , the guide sleeve 35 is pulled outward against the restoring force of disc springs 38 and relieves the tensioning disks 36 so that the shaft 23 can be rotated in this position.

All shown in the description, the claims and the drawing Features can be used individually as well as in any combination each other be essential to the invention.

Claims (11)

1. Bacon derinding machine or the like. with a roller to the ent to be rinsed against a knife-edge promoting train as well as an adjustable knife holder, a spring acting on this or the like. Resetting force automatically presses the unloaded cutting edge into the gate position and the cutting material loading the cutting edge moves this cutting edge backwards against the restoring force and closer to the pulling roller jacket into the cutting position, whereby a guide is provided for the knife holder which removes the cutting edge from the gate Lung leads closer to the pull roller jacket, and further the guide of the knife holder has rockers, the lower rotary bearing of which is lower than the pull roller and where the rockers between the knife holder bearing and the rotary bearing are formed as rigid parts, characterized in that the rockers - Rotary storage ( 13 ) for additional change in the distance between the knife edge ( 7 ) and the pull roller ( 5 ) be movable and for a movement of the knife edge to the pull roller is applied. 2. Machine according to claim 1, characterized in that the rocker pivot bearing ( 13 ) is connected to an adjusting device for adjusting the knife ( 9 ) or of the knife holder ( 8 ) in a lifting position and different union, possibly spring-loaded Working positions. 3. Machine according to claim 1 or 2, characterized in that the adjusting device with one end on the swing-pivot bearing ( 13 ) engaging pivot lever ( 15 ) at the other end by means of return springs ( 19 ) in the sense of a movement of the knife ( 9 ) are applied to the pull roller ( 5 ). 4. Machine according to claim 3, characterized in that when the pivot bearing ( 13 ) engaging lever end of the pivot lever ( 15 ) to the lever bearing ( 16 ) extends approximately parallel to the feed plane ( 3 ) of the material to be quenched. 5. Machine according to one of the preceding claims, characterized in that the swivel levers ( 15 ) are angled in their longitudinal extension and that the rotation of the outer lever part remote from the lever bearing ( 17 ) abge downwards and is adjustable at its end with Springs ( 19 ) is connected. 6. Machine according to one of claims 1 to 5, characterized in that on the outer lever part ( 17 ) acts a setting device ( 18 ) for adjusting the pivoting lever ( 15 ) in un different pivoting positions, the vzw. has an eccentric ( 24 ) which is connected via springs ( 19 ) to the outer lever part ( 17 ). 7. Machine according to one of claims 1 to 6, characterized in that the rotary bearing ( 13 ) and / or the Hebella movement ( 16 ) and / or the eccentric bearing ( 20 ) by itself approximately over the width of the draw roller ( 5 ) or . The machine extending shafts ( 21 to 23 ) are formed, at the ends of which a rocker arm ( 12 ) or a pivot lever ( 15 ) or an eccentric ( 24 ) are mounted. 8. Machine according to claim 6 or 7, characterized in that the adjusting device ( 18 ) with the eccentric shaft ( 23 ) rotatably and eccentrically connected eccentric disc ben ( 24 ) which are rotatably supported in sliding pieces ( 25 ) and that with the sliding pieces ( 25 ) at the ends of the swivel levers ( 15 ) attacking pull rods ( 26 ) are provided, on which there are on the one hand at the free end of the push rods and on the other hand on the swiveling levers supporting return springs ( 19 ). 9. Machine according to claim 8, characterized in that on at least one eccentric ( 24 ) or the like. a hand lever ( 28 ) is attached, the vzw. is connected to a locking device for setting the setting device or the pivoting lever in different positions. 10. Machine according to one of claims 1 to 9, characterized in that the rockers ( 12 ), starting from their below and in the transport direction of the Abwart good in front of the pull roller ( 5 ) arranged rotary bearing ( 13 ), one in front of the pull roller extending above the first swing arm part ( 30 a ) and then a further swing arm part ( 30 ) angled towards the knife holder ( 8 ). 11. Machine according to one of claims 1 to 10, characterized in that the knife holder ( 8 ) is tiltably mounted in the upper rocker arm parts ( 30 ) and that this is approximately L-shaped, an upper, open edge insertion opening ( 32 ) with it to the rear adjoining bearing opening ( 33 ) has receptacles for laterally on the knife holder in front of bearing bolts ( 31 ) and that, if necessary. A stop ( 34 ) limiting the tilting movement is provided.