JP2911085B2 - Cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine comprising first and second conveyor belts arranged in a common conveying direction and a cutting device arranged next to the first conveyor belt. In the case of a cutting machine for cutting food, the stacks of articles are placed in a straight, relatively cubic or overlapping manner, i.e., individual slices of the product are placed on a conveyor belt located at the exit side of the cutting machine. When shingle must be superimposed on either.

[0002]

2. Description of the Prior Art It is conventionally known to use two conveyor belts which are aligned on a common conveying surface, one belt being arranged next to a circular knife and acting as a discharge belt. The slices of the product cut with a knife fall onto the belt and depending on whether the belt is driven during the cutting process (when the discharge belt is stationary) or a straight cubic stack or (when the discharge belt is driven) Form one of the roof shingles.

However, it is known in the prior art to provide a constant transport length for a discharge belt which is arranged next to a circular knife and through which the slices of the product fall. This has disadvantages. If the discharge belt is given a fixed transport length, the cutting power cannot be optimized. For example, if it is desired to form a straight cubic stack of products, the discharge belt is initially quiescent and the slices are superimposed to form a straight stack until the desired height is reached. Next, the drive of the first belt (discharge belt) is turned on, and the straight overlap is transferred to the adjacent second conveyor belt disposed downstream in the transport direction of the discharge belt.

[0004] If the discharge belt is of fixed length, the stack of products is transported from the first belt to the second belt until it is transported.
It is necessary to wait while traveling from the first belt to the second belt before a new stack of products can be formed. During this time,
Cutting is not possible, i.e. circular knives make many idle cuts, which adversely affects the productivity of the cutting machine. Another disadvantage is that the first conveyor belt (discharge belt) located next to the circular knife, even when the stacks of products are placed one on top of the other, does not have a long roofing stack of products but a short roofing stack. Must be made relatively long transport length, which is sufficient to form either of

[0005] Therefore, the conveyor belt must be designed to its maximum length so that long shingles can also be formed. If only a short shingle lap is desired, the cutting is performed because the short shingle lap at the beginning of the relatively long conveyor belt needs time to be transferred to the second belt downstream in the transport direction. Power is wasted.

[0006] Even during this transfer time, the circular knife must make an idle cut, which also reduces power.

[0007]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to improve the output of a cutting machine of the above-mentioned type irrespective of the desired lap size of the product.

[0008]

SUMMARY OF THE INVENTION The present invention comprises a first conveyor belt having a transport length, a second downstream conveyor belt having a transport length, and a cutting device, wherein the first conveyor belt comprises a cutting belt. Disposed adjacent to the apparatus, aligned in a common transport direction with the second conveyor belt, and at least the first
The present invention is realized by providing a cutting machine for cutting a food product in which the conveyor length of the conveyor belt is adjustable.

One important feature of the present invention is that the transport length of at least the first belt (discharge belt) is adjustable. Thus, in a preferred embodiment of the present invention, the transport length of the second downstream conveyor belt is also adjustable. The first belt must be adjustable in length according to the present invention, as this technical teaching can substantially improve the output of the cutting machine. For example, if a straight square stack of products is to be formed, the first belt can be of a minimum transport length so that as soon as the stack is formed, it can be transported very quickly to the second downstream belt. This means that only the short breaks in the cutting which are necessary for transferring the just formed lap from the relatively long first belt to the second belt, during the short time, after which the next lap of the product is now It can be formed immediately on the free first belt.

[0010] For the same application, in the case of a shingle stack of products, the same features can be given, since the transport length of the first belt (discharge belt) is always adjusted for use in an optimal way, That is, in the case of a shingle stack, there is just space on the conveyor belt for the desired length of shingle, i.e. the shingle length is adjusted to the belt and the belt is not made longer than the desired shingle length. The length of the first belt is adjusted. It takes less time to transfer the shingle stack of product from the first belt to the second belt downstream, thus also substantially increasing the cutting capacity.

Preferably, the transport length of the downstream second belt is adjusted in a complementary manner to the transport length of the first belt such that the two belts form an aligned substantially continuous transport surface. . Thus, when the transport length of the first belt is reduced, the transport length of the downstream second belt is correspondingly reduced and formed to obtain an aligned flat substantially continuous transport surface. Avoid the risk of tilting product stacks.

In another embodiment, when a first belt having a variable transport length overlaps a second belt, the transport length of the second belt may be constant. There is a risk that the lap transferred from the first belt to the second belt may tilt and possibly be accidentally displaced. However, this risk is acceptable in the case of low or roof shingles. Thus, according to the invention, it is necessary for the transport length of the first belt to be adjustable, while in another preferred embodiment of the inventive concept this is merely a desirable feature, The transport length of the belt can be adjusted complementarily.

Thus, in a structural embodiment of the inventive concept, a transport zone is formed between the first belt and the second belt, and the guide rollers parallel to the transport surface are displaceable in the transport direction and in the opposite direction. Provided as is. When the guide rollers are adjusted, the length of the transport path of the belt is lengthened or reduced and provided so as to be displaceable with a suitable guide and thus a compensating roller is provided, whereby the compensating rollers can be adjusted at the same time and the belt of the transport belt is adjusted. Always ensure that a constant tension is maintained. Therefore, the compensating roller compensates for the aforementioned change in the transport path length of the transport belt on the transport surface. FIGS. 3 to 5 show a second embodiment of a cutting machine comprising two conveyor belts. The total length of the two belts is not adjustable.
Instead, the two belts cross each other, i.e., overlap. As a result of the superposition, a superposition area can be defined, and the material of the transfer is transferred from the first belt arranged next to the cutting machine to the second belt via the superposition area between the two belts.

In the overlapping area, two conveyor belts are overlapped,
It is characterized in that they are arranged at an angle to one another, i.e. the conveying surface of the first belt is arranged at a slight angle to the conveying surface of the second belt. This covers many embodiments of the present invention. In the first embodiment, the transport angle of the first belt is adjustable to change the position of the overlap area between the two intersecting conveyor belts. By changing the position of the overlapping area, the transport length of the first belt is adjusted.

In a second embodiment (not shown), the second
Belt transfer angle is the mutual coupling between belts (overlapping area)
Can be adjusted to change simultaneously. In a preferred embodiment, the mechanism for adjusting the angles of the conveying surfaces of the first and second belts is substantially configured such that one guide roller disposed in the second conveyor belt is pivotally displaceable. You. Preferably, for pivoting, the last-mentioned roller is pivotally mounted on a corresponding pivotally mounted lever, the pivoting direction of the lever itself being adjustable by suitable spindle means.

Of course, instead of manual spindle adjustment, the lever can be pivoted by pivoting via another mechanism, such as an electromagnetically actuated pivoting device or a suitable eccentric drive. An important feature of all the examples of the second embodiment is that the two belts intersect and the guide rollers of the first belt are arranged in the second belt and are displaceable such that they can pivot about a horizontal axis. Is to be provided.

In this way, the area of overlap between the interconnecting belts can be changed. This has the advantage that the transport length can be adjusted in an optimal manner by a relatively simple and compact structure.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS Other objects and advantages of the present invention will be apparent from the following description in conjunction with the drawings. FIG. 1 shows a cutting machine consisting essentially of a drive unit 1 consisting of a drive shaft 2 which is rotationally driven by a drive (not shown). The shaft 2 is non-rotatably connected to an eccentric plate 3 which supports the shaft 5 eccentrically with respect to the drive shaft 2, to which a circular knife 4 is mounted and driven to rotate.

A through hole 6 for a product to be cut is formed in the base 26 of the cutting machine. The product is in a forwardly inclined surface 7 and is guided in the direction of the arrow 8 towards the through opening 6.
Thus, it comes within the scope of the circular knife 4 which cuts in cooperation with the stationary opposite knife 9. In a known manner, the circular knife 5 moves in planetary orbit as a result of the rotational drive of the eccentric 3.

The entire device is a pivot 1 of the base frame 10.
1 is held at an adjustable angle. A first conveyor belt 15 in the form of a discharge belt is arranged below the opposite knife 9. The belt 15 has upper guide rollers 17 and 18, and the entire belt is acted on by a drive 23. Belt 1
When 5 is stationary, the product cut by the circular knife 4 is sliced down on the conveying surface 14 of the belt 15, thus forming a straight cubic stack 12.

When the stack 12 has reached a predetermined height, it is conveyed in the direction of the arrow 13 to an adjacent second conveyor belt 16. To this end, the drive 23 of the first belt 15 is turned on, so that the product stack is transferred to the second conveyor belt 16 in the direction of the arrow 13. The second belt 16 also has guide rollers 19 and 20 on the transport surface 14 and is driven by another drive 24.

A scale, another conveyor belt, or other transport means (not shown) may be connected behind the second conveyor belt 16. One important feature is that the transport length 21 of the first belt 15 is shortened so that the product stack 12 substantially fills the entire transport length of the belt 15 and thus the stack 12
Is only required to be a short distance for transporting in the direction of arrow 13 to the downstream second belt 16.

This substantially reduces the productivity of the cutting machine during the rapid transfer of the stack 12 from the first belt 15 to the second belt 16 since the circular knife only has to make a short idle cut. After the first belt 15 is vacated, a new overlap 12 can be formed immediately. Since the transport length 21 of the first belt 15 is relatively shortened,
The belt 16 is compensated for by a relatively long transport length 22, which does not affect the output of the cutter. On the other hand, FIG.
If a relatively long roof shingle 12 'is required, as in the above, the productivity of the machine is that the transport length 21' is increased so that the roof shingle exactly meets the transport length 21 'of the belt 15. Is similarly improved. This means that the length of the first belt 15 is correctly adjusted to the length of the roof shingle 12 ', so that only a relatively short time is required to transport the lap 12' to the second belt 16 downstream. This has the other important advantage of requiring

Therefore, according to an important feature, the guide rollers 17, 20 in the discharge area between the first belt 15 and the second belt 16 are provided with the conveying lengths 21, 21 of the two belts 15, 16.
As 21 'and 22, 22' are made adjustable,
It is made adjustable by sliding on the guide in the transport direction and in the opposite direction (the direction of arrow 13). Therefore, the guide rollers 17, 20 are adjustable at positions 17 ', 20' in the direction of arrow 25.

In order to compensate for the change in the belt length, it is proposed that the compensating rollers 27, 28 be moved to movable positions 27 ', 28'. According to another feature of the invention, two belts 1
The transport part 29 receiving the 5 and 16 is removably connected to the base frame 10 of the cutting machine by a suitable connection 30. This has the advantage that the entire transport component 29 can be replaced by another transport component having, for example, only one belt. An additional conveying part with a single belt is only required to form, for example, a roof shingle 12 ', and is used if its length is always constant.

In FIG. 3, the first conveyor belt 35
Is placed next to the cutting machine and then guided on rollers 18;
It is made up of individual parallel bands 51 which are guided on a front roller 17 which is axially displaceable. Similar belt 36
Are made from individual parallel bands 50. Rear guide roller 18
Runs on a drive (not shown) and is rotationally driven by a belt 52 looping around a drive wheel non-rotatably connected to the rear drive roller 18.

FIG. 3 also shows the three turning positions of the full cutting machine, the positions being shown schematically with different turning positions of the opposite knives 9, 9 ', 9 ". It has a guide roller 20 and a front guide roller 19. The rear roller 20 is similarly driven by a belt 53 running on a drive motor (not shown).

The guide rollers 18, 19, 20 are provided with side parts 33,
It is rotatably provided in a region 34. A fixed shaft 37 is also provided to fix all units, that is, the side plates 33 and 34 and the guide roller, to the substrate 31. The substrate 31 has one side covered 32
Covered with. The fixed shaft 37 extends through the recess into the one-sided part 34, where it is non-rotatably connected to a pivot knob 38.
On the other hand, the fixed shaft 37 likewise extends through the recess to the side part 33 and engages via a threaded bolt 39 in a threaded hole matching the recess in the substrate 31.

Guide rollers are provided on the appropriate bearings 40 at the side portions 33,34. The guide roller 17 of the first conveyor belt 35 is provided inside the second conveyor belt 36.
That is, the belt 35 is disposed below the conveying surface of the second belt 36 and overlaps in the overlapping area 54 between the belts 35 and 36. The guide roller 17 of the first belt 35 arranged inside the second belt 36 is coaxial with the guide roller 18 so as to be rotatable in the directions of arrows 55 and 56, and the pivot of the pivot within the area is provided. It is provided around.

The first lever 42 is rotatably provided on the guide roller 18, and forms a groove 44 in which the shaft of the guide roller engages with the gap to the second lever 43 formed at its front free end. Connected. The adjustment lever 45 is located on the side
Is provided so as to operate vertically in the concave portion 49 in the region of. It has a groove 44 surrounding the axis of the guide roller 17. The spindle 48 is engaged with the bottom of the adjustment lever 45 and is adjustably received by a spindle nut 57. On the opposite side from the spindle nut 57, the spindle 48 can be fixed by a fixing nut 47. Spindle 48 is also non-rotatably connected to handle 46. When the handle 46 is actuated, the spindle 48 can be adjusted substantially vertically to the stationary spindle nut 57, thus adjusting the lever 45 along a vertical axis. By this means, the lever 43 moves around the center of rotation of the shaft of the guide roller 18 by arrows 55 and 56.
, So that the entire guide roller 17 is slightly rotated in the area of the second conveyor belt 36.

FIG. 3 shows that the transport length 60 is made relatively long.
FIG. 4 shows the two conveyor belts when the overlap area 54 is away from the cutting machine, while FIG. 4 shows that the overlap area 54 'is near the cutter and therefore a short conveyance between the first belt and the second belt. Shown is the adjustment position with the guide roller pivoted downward in the direction of arrow 56 to be a length 60 '.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a cutting machine for forming a straight stack of products according to a first embodiment of the present invention.

FIG. 2 shows the same device as in FIG. 1 in which the conveyor belt with the adjusted length and the straight stack have been replaced by a roof shingle stack.

FIG. 3 is a schematic side view of a conveyor belt device according to a second embodiment of the present invention in a first position.

FIG. 4 shows the conveyor belt device shown in FIG. 3 in a second position.

FIG. 5 is a plan view of the device shown in FIGS. 3 and 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Drive unit 2 Drive shaft 3 Eccentric disk 4 Circular knife 5 Axis 6 Through-hole 7 Surface 8, 13, 25, 55, 56 Direction of arrow 9 Opposite knife 10 Base frame 11 Pivot 12, 12 'Stack of products 14 Transport surface 15, 35 First conveyor belt 16, 36 Second conveyor belt 17, 17 ', 18, 19, 20, 20' Guide roller 21, 21 ', 22, 22' Transport length 23, 24 Drive 26, 31 Substrate 27, 27 ', 28, 28' Compensating roller 29 Conveying part 30 Coupling 32 Cover 33, 34 Side part 37 Fixed shaft 38 Rotating knob 39 Screwed bolt 40 Bearing 41 Bolt 42, 43 Lever 44 Groove 45 Adjusting lever 46 Handle 47 Fixing nut 48 Spindle 49 Recess 50, 51 Band 52, 53 Drive belt 54, 54 'Overlap area 57 Spindle Tsu door

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Herbert Adler 8998 Lindenberg Sonnenstrasse, Germany (56) References JP-A-3-3796 (JP, A) JP-A-3-73294 (JP) (A) JP-A-4-69196 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B26D 3/28 610 B26D 7/18 B65G 21/14

Claims (6)

(57) [Claims] 1. A first conveyor belt having a conveying length, a second downstream conveyor belt having a conveying length, and a cutting device, wherein the first conveyor belt is disposed adjacent to the cutting device; A cutting machine that cuts food items that are aligned in a common conveyance direction with a second conveyor belt and in which the conveyance length of at least the first conveyor belt is adjustable. 2. The cutting machine according to claim 1, wherein the conveying length of the second downstream conveyor belt is also adjustable. 3. The conveyance length of the second conveyor belt can be adjusted complementarily to the conveyance length of the first conveyor belt.
The two conveyor belts form an aligned conveyor surface, and the length of the second conveyor belt is complementarily elongated with the reduction of the first conveyor belt to maintain a substantially continuous conveyor surface. The cutting machine described. 4. The cutting machine according to claim 1, wherein the transport length of the second conveyor belt is not adjustable, and the first conveyor belt overlaps with the second conveyor belt. 5. A guide roller located in a transfer area between a first conveyor belt and a second conveyor belt and provided on a common transport surface so as to be displaceable in a transport direction and a reverse direction. 2. The cutting machine according to claim 1, further comprising a compensating roller that can be repositioned to compensate for the movement of the cutting machine. 6. Each conveyor belt is composed of a plurality of band-like parts, the belts of the two belts being interleaved, adjusting the point of intersection of the two belts, thereby changing the transport length of the two conveyor belts. The cutting machine according to claim 1, further comprising belt roller displacement means.