Multi-track slicing machine with independently controllable grippers

Abstract

In order that grippers on individual tracks of a multi-track slicing machine can be moved and controlled independently of one another, they are not all mounted on a same gripper slide guided on the only slide guide present. Instead, at least two slide guides may be present, each of which carries at least one gripper slide, which in turn either carries several grippers or several gripper slides.

Claims

1. A multi-track slicing machine for slicing product calibers into slices, the slicing machine comprising: a base frame, a cutting unit, a discharge conveyor for conveying the slices, a feed unit with a feed conveyor for feeding the calibers to the cutting unit comprising: one gripper per track, multiple gripper slides which carry the grippers, first and second parallel slide guides arranged on opposite sides with respect to a longitudinal center of the feed conveyor, as seen in plan view, wherein the multiple gripper slides include a first gripper slide that is movable in a controlled manner in a feeding direction along the first slide guide, and a second gripper slide that is movable in a controlled manner in the feeding direction along the second slide guide, wherein the multiple gripper slides further include a third gripper slide that is movable with respect to the first slide guide, and a fourth gripper slide that is movable with respect to the second slide guide, and a first actuator connected to the first gripper slide and the third gripper slide, and configured to move the third gripper slide relative to the first gripper slide, and a control for controlling moving parts of the slicing machine.

2. The slicing machine according to claim 1, wherein exactly one gripper slide is movably guided on each slide guide, each gripper slide carries at least two grippers, and at least one of the grippers is guided and displaceable in a controlled manner in the feeding direction relative to the gripper slide carrying it.

3. The slicing machine according to claim 1, wherein a plurality of gripper slides are movable independently of one another in a controlled manner along each slide guide.

4. The slicing machine according to claim 3, wherein each gripper slide carries only one gripper.

5. The slicing machine according to claim 1, wherein each of the gripper slides is movable in a controlled manner relative to the base frame in the feeding direction.

6. The slicing machine according to claim 5, wherein each of the gripper slides is movable in a controlled manner directly relative to the base frame in the feeding direction.

7. The slicing machine according to claim 1, wherein the first and second slide guides are identical and/or the gripper slides guided thereon are identical.

8. The slicing machine according to claim 1, wherein the first and second slide guides are arranged symmetrically with respect to the longitudinal center.

9. The slicing machine according to claim 1, wherein the feed conveyor comprises a feed belt.

10. A multi-track slicing machine for slicing product calibers into slices, the slicing machine comprising: a cutting unit; and a feed unit with a feed conveyor for feeding the calibers to the cutting unit comprising: one gripper per track, multiple gripper slides which carry the grippers, first and second parallel slide guides arranged on opposite sides with respect to a longitudinal center of the feed conveyor, as seen in plan view, wherein a first gripper slide of the multiple gripper slides is movable in a controlled manner in a feeding direction along the first slide guide, and a second gripper slide of the multiple gripper slides is movable in a controlled manner in the feeding direction along the second slide guide, wherein the multiple gripper slides include a third gripper slide that is movable with respect to the first slide guide, and a fourth gripper slide that is movable with respect to the second slide guide, and a first actuator connected to the first gripper slide and the third gripper slide, and configured to move the third gripper slide relative to the first gripper slide.

11. The slicing machine according to claim 1, wherein each of the first and third gripper slides is movable independently of each of the second and fourth gripper slides.

12. The slicing machine according to claim 10, wherein the first gripper slide is movable independently of the second gripper slide.

13. The slicing machine according to claim 10, wherein the first gripper slide is spaced away from the second slide guide, and the second gripper slide is spaced away from the first slide guide.

14. The slicing machine according to claim 10, further comprising a second actuator connected to the second gripper slide and the fourth gripper slide, and configured to move the fourth gripper slide relative to the second gripper slide.

15. The slicing machine according to claim 10, wherein the first gripper slide and the third gripper slide are spaced away from the second slide guide, and the second gripper slide and the fourth gripper slide are spaced away from the first slide guide.

16. The slicing machine according to claim 15, further comprising a second actuator connected to the second gripper slide and the fourth gripper slide, wherein the second actuator is configured to move the fourth gripper slide relative to the second gripper slide.

17. A multi-track slicing machine for slicing product calibers into slices, the slicing machine comprising: a cutting unit; and a feed unit with a feed conveyor for feeding the calibers to the cutting unit comprising: one gripper per track, multiple gripper slides which carry the grippers, first and second parallel slide guides arranged on opposite sides with respect to a longitudinal center of the feed conveyor, as seen in plan view, wherein a first gripper slide of the multiple gripper slides is movable in a controlled manner in a feeding direction along the first slide guide, and a second gripper slide of the multiple gripper slides is movable in a controlled manner in the feeding direction along the second slide guide, wherein the multiple gripper slides include a third gripper slide that is movable with respect to the first slide guide, and a fourth gripper slide that is movable with respect to the second slide guide, and wherein an actuator connects the first gripper slide and the third gripper slide and is configured to move the third gripper slide relative to the first gripper slide along the first slide guide, the first gripper slide and the third gripper slide are spaced away from the second slide guide, and the second gripper slide and the fourth gripper slide are spaced away from the first slide guide.

18. The slicing machine according to claim 17, wherein the first gripper slide is spaced away from the second slide guide, and the second gripper slide is spaced away from the first slide guide.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Embodiments according to the disclosure are described in more detail below by way of example. They show:

(2) FIGS. 1a, b: a slicing machine in the form of a slicer according to the prior art in different perspective views, with the feed belt tilted up into the slicing position,

(3) FIG. 1c: the slicing machine of FIGS. 1a, b in side view with the cover parts removed so that the different conveyor belts are better visible,

(4) FIG. 2a: a simplified side view of the slicing machine compared to FIG. 1c, loaded with a caliber of product,

(5) FIG. 2b: a side view as in FIG. 2a, but with the infeed belt tilted down to the loading position and the product caliber cut except for a caliber rest piece,

(6) FIG. 3a: a first embodiment of the disclosure in the top view of the slicing machine of FIGS. 1a, b, viewed perpendicular to the feed belt tilted up into the slicing position, and

(7) FIG. 3b: a second embodiment of the disclosure in a top view of the slicing machine of FIGS. 1a, b, viewed perpendicular to the feed belt tilted up into the slicing position.

DETAILED DESCRIPTION

(8) FIGS. 1a, 1b show different perspective views of a multi-track slicer 1 for simultaneous slicing of several product calibers K on tracks SP1 to SP4 next to each other and depositing in shingled portions P of several slices S each with a general passage direction 10* through the slicer 1 from right to left.

(9) FIG. 1c and FIG. 2a showwithout and with the caliber K inserteda side view of this slicer 1, omitting covers and other parts not relevant to the disclosure, which are attached to the base frame 2 like all other components, so that the functional parts, especially the conveyor belts, can be seen more clearly. The longitudinal direction 10 is the feed direction of the calibers K to the cutting unit 7 and thus also the longitudinal direction of the calibers K lying in the slicer 1.

(10) It can be seen that the basic structure of a slicer 1 according to the state of the art is that to a cutting unit 7 with a blade 3 rotating about a blade axis 3, such as a sickle blade 3, several, in this case four, product calibers K lying side by side transversely to the feeding direction 10 on a feed conveyor 4 with spacers 15 of the feed conveyor 4 between them are fed by this feed unit 20, from the front ends of which the rotating blade 3 cuts off a slice S with its cutting edge 3a in each case in one operation, i.e., almost simultaneously.

(11) For cutting the product calibers K, the feed conveyor 4 is in the cutting position shown in FIGS. 1a-2a, which is oblique in side view with a low-lying front end on the cutting side and a high-lying rear end, from which it can be tilted down about a pivot axis 20 running in its width direction, the first transverse direction 11, which is located in the vicinity of the cutting unit 7, into an approximately horizontal loading position as shown in FIG. 2b.

(12) The rear end of each caliber K lying in the feed unit 20 is held positively by a gripper 14a-d with the aid of gripper claws 16 as shown in FIG. 2a. These grippers 14a-14d, which can be activated and deactivated with respect to the position of the gripper claws 16, are attached to a common gripper slide 13, which can be moved along a gripper guide 18 in the feeding direction 10.

(13) Both the feed of the gripper slide 13 and of the feed conveyor 4 can be driven in a controlled manner, but the actual feed speed of the calibers K is effected by a likewise controllably driven so-called upper and lower product guide 8, 9, which engage on the upper side and lower side of the calibers K to be cut in their front end regions near the cutting unit 7.

(14) The front ends of the calibers K are each guided through a so-called product opening 6a-d of a plate-shaped cutting frame 5, the cutting plane 3 running immediately in front of the front, obliquely downward-pointing end face of the cutting frame 5, in which cutting plane the blade 3 rotates with its cutting edge 3a and thus cuts off the protrusion of the calibers K from the cutting frame 5 as a slice S. The cutting plane 3 runs perpendicular to the upper run of the feed conveyor 4 and/or is spanned by the two transverse directions 11, 12 to the feeding direction 10.

(15) The inner circumference of the product openings 6a-d of the cutting edge 3a of the blade 3 serves as a counter cutting edge.

(16) Since both product guides 8, 9 can be driven in a controlled manner, in particular independently of one another and/or possibly separately for each track SP1 to SP4, they determine thecontinuous or clockedfeed speed of the calibers K through the cutting frame 5.

(17) The upper product guide 8 is displaceable in the second transverse direction 12which is perpendicular to the surface of the upper run of the infeed conveyor 4for adaptation to the height H of the caliber K in this direction. Furthermore, at least one of the product guides 8, 9 can be embodied to pivot about one of its deflection rollers in order to be able to change the direction of the run of its belt resting against the caliber K to a limited extent.

(18) The slices S standing obliquely in space during separation fall onto a discharge unit 17 which begins below the cutting frame 5 and runs in the passage direction 10* and which in this case consists of several discharge conveyors 17a, b, c arranged one behind the other with their upper runs approximately in alignment in the passage direction 10*, of which the first discharge conveyor 17a in the passage direction 10 can be designed as a portioning belt 17a and/or one can also be embodied as a weighing unit.

(19) The slices S can hit the discharge conveyor 17 individually and at a distance from each other in the passage direction 10* or, by appropriate control of the portioning belt 17a of the discharge conveyor 17the movement of which, like almost all moving parts, is controlled by the control 1*form shingled or stacked portions P, by stepwise forward movement of the portioning belt 17a.

(20) Below the feed unit 20 there is usually a roughly horizontally running rest piece conveyor 21, which starts with its front end below the cutting frame 5 and directly below or behind the discharge unit 17 and with its upper run thereonby means of the drive of one of the discharge conveyors 17 against the passage direction 10transports falling rest pieces downwards.

(21) FIG. 3a shows a first embodiment of the drive and the guide of the individual grippers 14.1-14.4 in the feeding direction 10, seen from above, i.e., perpendicular to the feed belt 4 of the feed unit 20:

(22) Here, on both sides of the feed belt 4, in particular symmetrically to the longitudinal center 10 of the feed belt 4, there is a slide guide 18a, 18b in the form of, for example, a guide rod.

(23) Two gripper slides are guided on each of the two slide guides 18a, b, namely the two gripper slides 13.1, 13.2 arranged on this side of the longitudinal center 10 on the slide guide 18a, which are guided with their respective guide part on the guide 18a at a distance in the feed direction 10.

(24) The guide slide 13.1 carries only one gripper 14.1, which is arranged on the track SP1 and holds the caliber K1 shown there by way of example at its rear end, while the slide 13.2 carries only the gripper 14.2, which can be moved along the track SP2 immediately next to it.

(25) Each of the gripper slides 13.1, 13.2 projects from the slide guide 18a only so far in the direction of the longitudinal center 10 that it can carry the gripper 14.1 or 14.2 located on the corresponding track SP1 or SP2.

(26) At the rear end of the slide guide 18a facing away from the cutting unit 7, a slide drive source 22ausually a slide motorfor moving each of the gripper slides 13.1, 13.2 in the feeding direction 10 as well as, where appropriate, a gripper activator 23a for activating and deactivating each gripper 14.1, 14.2 assigned to this slide guide 18a, if the gripper activation does not take place automatically when the caliber, e.g., K1, is contacted by the gripper, e.g., 14.1. In this case, there is preferably a separate slide drive source 22a for each slide and a separate gripper activator 23a for each gripper for their independent operation.

(27) As with the other embodiments, the decisive factor is that the corresponding drive sources for slides and grippers can be arranged as far away as possible from the cutting unit 7 and, above all, in a fixed position, in order to be able to supply power lines and signal lines to thesenot showndrive sources in a simple manner, which do not have to travel with the slides 13.1 to 13.4.

(28) Thus, by means of the slide drive source 22a, each of the two gripper slides 13.1, 13.2 guided on this slide guide 18a can be driven independently of each other in the feed direction 10, except for the fact that the two slides 13.1, 13.2 running on this slide guide 18a cannot overtake each other.

(29) In this case, the gripper slide 13.1 is arranged with its guide part, with which it engages on the slide guide 18a, in front of the slide 13.2 on the slide guide 18a in the direction of the cutting unit 7, which is why the other slide 13.2 has at its gripper-side end a support angle pointing in the feeding direction 10, at the front free end of which the gripper 14.2 is held, so that this gripper 14.2 can certainly also assume positions in the feeding direction 10 still in front of the gripper 14.1, the gripper slide 13.1 of which is guided on the same guide 18a.

(30) If the slide guide 18a is not a guide rod embraced by the guide parts of the slides 13.1, 13.2, individual slide guides, e.g., in the form of guide grooves, can be present on a guide beam on e.g., different sides of its circumference, on each of which one of the gripper slides 13.1, 13.2 can be guided, which can then also overtake each other.

(31) The slide drive train connecting the slide drive source 22a to the respective slide can, for example, be embodied integrally with the slide drive source 22a, for example in the form of a sliding shaft as a slide guide 18a, or, parallel thereto, drive movements can be transmitted along the slide guide 18a into the respective gripper slide 13.1, 13.2 guided thereon, and likewise the gripper drive 23a in each of the two grippers 14.1, 14.2, in order to be able to operate them independently of one another, i.e., to open and close them.

(32) In order to set the two slides 13.1, 13.2 to a respective predetermined position in the feeding direction 10, one slide, here 13.2, is set as master slide by means of the slide drive to its absolute set position relative to the stationary slide drive source 22a, whereas the other slide 13.1, which is assigned to the same slide guide 18a, is set as a slave slide only to a predetermined relative nominal position to the slide 13.2 by means of a actuator 24a, which is preferably variable in length and is connected to the two slides 13.1, 13.2, again controlled by the slide drive source 22a.

(33) The slide drive train for the slave slide thus preferably runs from the corresponding slide drive source 22a along or by means of the slide guide 18a and through or along the master slide 13.2 to the slave slide 13.1.

(34) It is irrelevant which of the two slides serves as the master and is set to the absolute nominal position in the feeding direction 10 and which serves as the slave, whose relative distance is set only relative to the master.

(35) Nevertheless, both slides 13.1, 13.2 are each guided with their guide part directly on the slide guide 18a.

(36) The same applies analogously to the gripper slides 13.3, 13.4 guided on the other side of the longitudinal center 10 on the slide guide 18b there and the gripper 14.3, 14.4 held thereon in each case, which are driven by the analogous slide drive source 22b and gripper activator 23b there.

(37) FIG. 3b shows a second solution according to the disclosure.

(38) In contrast to the solution in FIG. 3a, only one gripper slide is guided on each of the slide guides 18a, b, namely the respective master slide 13.2, 13.3. The respective slave slide 13.1, 13.4, on the other hand, is guided on the respective master slide 13.2, 13.3 by means of a relative guide 25a.

(39) The drive lines for the individual gripper slides 13.1-13.4 are preferably designed as explained for FIG. 3a.

(40) Thus, also in this case, the actuator 24a, b can be controlled from the slide drive source 22a via the respective master slide 13.2, 13.3 in order to bring the gripper 14.1 or 14.4 into the desired position. 1 slicing machine, slicer 1* control 2 base frame 3 blade 3 rotation axis 3 blade plane, cutting plane 3a cutting edge 4 feed conveyor, feed belt 5 cutting frame 6a-d product opening 7 cutting unit 8 upper product guide, upper guide belt 8.1 contact run, lower run 8a cutting side deflection roller 8b deflection roller facing away from the cutting side 9 bottom product guide, lower guide belt 9.1 contact run, upper run 9a cutting side deflection roller 9b deflection roller facing away from the cutting side 10 feeding direction, longitudinal direction, axial direction 10 longitudinal center 10* passage direction 11 1. transverse direction (width slicer) 12 2. transverse direction (height-direction caliber) 13.1-13.4 gripper unit, gripper slide 14,14a-d gripper 15 spacer 16 gripper claw 17 discharge conveyor unit 17a, b, c portioning belt, discharge conveyor 18 slide guide 19 height sensor 20 feed unit 21 end piece conveyor 22a, b slide drive 23a, b gripper drive 24a, b actuator 25a, b relative guide K product, product caliber KR end piece S slice P portion V packaging element