JP3576183B2 - Packaging equipment - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a packaging device for sealing and packaging a foil tube.
[0002]
[Prior art and its problems]
A device of this kind is described , for example, in DE 38 41 945 A1. In this known device, the flat foil path, the casting apparatus is modified to the front end is open foil tube, and that the foil tube is filled with a hot liquid substance as cheese melted. The foil tube filled with hot material is directed to a rejection station where the rejection webs move closer together, so that the fluid material collected in this area is rejected and the rejection web traversing the foil tube is rejected. Had formed. This preformed foil tube is led to a sealing station where a sealing seam is applied to the foil tube in the area of the reject web.
Sealing seams are applied to each side. That is, it is applied first to the front of the foil tube and then to the rear. As a result, the amount of work increases. A disadvantage of the aforementioned methods, the soluble mass is filled into the foil tube, a point which is separated into individual sections within the foil tube in the hot state. The thermal shock from mass has heat foil has disadvantages such changes expands longitudinally. Thus, the foil length will change between the hot mass filling station and the subsequent sealing station. For this, there is a drawback that it is necessary a wide sealing seam relatively wide in order to seal the respective foil portions. That is, a wide sealing seam is required to fully guarantee accurate sealing quality.
[0003]
Furthermore, for example, by using the sealing seam of the relatively wide 16 mm, it is not easy to fully and sufficiently reject hot mass from the sealing area, thus sealing performance is disadvantageously lowered. There was the danger that the sealing seam would be contaminated by residues of the material and that parts would not be properly sealed. In other words, hermetic sealing was not guaranteed, and the food contained in the foil tube could easily be unusable.
[0004]
Applying a relatively wide sealing seam inevitably involves relatively high foil consumption, and if you have conventional production facilities and normal production capacity, this consumption results in extra costs for 500,000 DM Reached. Moreover, this kind of sealing is heat-resistant foil to withstand the relatively high temperature of hot foods 80-90 ° C, for example, so required the use of foil without showing a modification that can not be extreme tolerance, this The foil used in the method was quite costly.
[0005]
Furthermore, when using wide sealing seams, a so-called "foil tail" occurs at the front end of each cut packet, which can be lengthened or shortened, thus affecting the subsequent stacking of individual packets. There was a disadvantage of doing so.
[0006]
[Problems to be solved by the invention]
An object of the present invention, for forming with accuracy that above considerably toward the exclusion web of the foil tube filled with goods quality and the accuracy of Shishirigu with improved, in order to obtain the robustness of the improved sealing, A further development of the rejection and sealing stations of the type described above. Sealing seam is configured residual substances hardly adhere by pasty filling.
[0007]
Summary of the Invention
An important feature of the present invention is that the foil tube is filled with a material that is difficult to flow, for example, which is already hard to flow at the time of production, such as cooled or dough or the like.
[0008]
Further features of the present invention, the foil tube filled with flowing hard material, there is also a point to be sent to the expulsion station having essentially two rollers you face to form a gap therebetween. These rollers are characterized by exclusion web that extends towards the radial direction, one exclusion webs of the upper portion rollers are tuned rotates so as to be in contact with one exclusion web of the lower roller, between exclusion web Strong contact is made. Additionally, expulsion since advance spring force towards the web radially outwardly is imparted, the opposite direction exclusion web rotary combine with the applied force to the fixed and the shape of the fixing takes place together. This ensures a reliable division of the contents of the foil tube. Due to the operation of this roller, the material in the foil tube is repelled in the longitudinal direction of the foil tube, forming a narrow sealing seam, for example, only 6 mm wide. In contrast, the conventional rejection station uses a sealing seam with a width of 16 mm, which is far from the basic concept of the present invention.
[0009]
Through the reject station, a foil strand molded in advance with a web-like division is followed to sealing station. Essentially sealing station performs a similar operation as expulsion station. That is, it has two rollers forming a gap and facing each other. Roller is divided in the outer periphery, and wherein the heated sealing web will suited in the radial direction.
[0010]
Also advance the spring force toward the radially these sealing webs are granted, with a sealing station, by rotating in opposite directions to engage the sealing webs are arranged so as to face each other, sealing the web A fixed contact between the applied force and the shape is performed. As a result, the material inserted into the foil tube is subjected to reliable and strong sealing, and high sealing performance is obtained. In the case where the sealing width is 5 mm, obtained reliable hermetic sealing seam, there is a special advantage of being able to use recyclable foil at relatively low cost.
[0011]
According to the invention, after the material has been sent to the rejection station in the cold state, it is also sealed in the cold state, so that it is not necessary to use a high quality foil. Conventionally, by the hot food flows, deformed effect, we had to use high-performance foil. Therefore, albeit at risk no longer exists in the present invention, it required a high quality foil to prevent deformation definitive in the region between the expulsion station and sealing station.
[0012]
It is important to note that, according to the present invention, all materials can be rejected and sealed as described above. For example, a fusible substance, any chilled substance, bath shampoo, peanut butter, grease or any other substance can be treated to be packaged and sealed in each section.
[0013]
It is not necessary to arrange the sealing station horizontally after the rejection station. As a further development of the invention, it is also possible to arrange the both devices so as to be perpendicular directly above each other, thus the foil strand, upper Noborumata from expulsion station can be directed to the sealing station to drop.
[0014]
Rather than using only one rejection station as shown, it is also possible to arrange the two rejection stations one behind the other, for example, the first rejection station is the pre-rejection station in the foil tube. While the second rejection station performs the final shaping of the rejection web sealed at the sealing station.
[0015]
Rather than using just one sealing station, it is also possible to use two sealing stations arranged one behind the other, in which case the first sealing station is a separate one of the foil tubes. The pre-sealed web is then sealed, while a second sealing station then performs the final sealing. This allows sufficient consideration of the foil properties so that even low quality sealing foils can be used. For example, by providing a sufficient sealing time, even made available by the thick Foy Le.
[0016]
A further development of the present invention does not use the above-mentioned rollers in a rejection station having repulsion webs that are equally spaced radially around the circumference and a sealing station having a sealing web, and as a further development of the invention, only one rejection web for a particular roller Alternatively, only one sealing web is engaged, and the synchronized drive of the specified rollers ensures a predetermined rotation angle of one of the rejection webs at all times. That is, there is always a contact between one of the rejected webs of one roller and the rejected web or sealing web of the other roller for fixing the applied force and the shape.
[0017]
In both embodiments, it is important to note that rejection processing occurs along the line of blade operation. That is, there is a rejecting web in contact with the foil tube and a subsequent rotational movement of the sealing web, and in a repelling action similar to a knife blade, the mutually specified rejecting webs or sealing webs are stacked so as to inhibit the formation of the material. The rotation angle of each roller increases until the rotation of the roller and the sealing of the foil tube are ensured. In other words, when the specified parts overlap, the gap in this area becomes zero, and the two specified parts have springs built in and press each other to suppress the applied force.
[0018]
After the sealed foil tube has passed through the sealing station, to straighten the foil tube at the tip of the flakes when viewed from the packaging or moving direction to even out the bumps caused by rejection, can you to add a finishing station to the sealing station.
[0019]
This results in a completely horizontal, smooth, sliced packaged material.
In width and length , the thickness of the flakes of material is substantially uniform.
[0020]
【Example】
Hereinafter, an embodiment according to the present invention will be described with reference to the accompanying drawings. As shown in the figure, the processing device comprises the basic elements of the machine, which can process two different food substances and, if appropriate, two different foil tubes 27, 27a. , Reject, seal and cut.
[0021]
For the sake of simplicity, only one processing step will be described below. The other parallel processing steps are the same. In other words, a simple concept of the invention is in the form of an apparatus having one processing step for processing one foil tube, for example a foil tube 27.
[0022]
Essentially, the foil station 1 has a single foil roller 14 arranged in a so-called single foil changer 17. This makes it possible to arrange the spare roller 16 in the foil changing machine 17 in case the material is fed out from the foil roller 14 and runs out. Similarly, this also applies to the foil roller 15 of the second processing step, which is arranged on an equivalent foil changer 17, and an equivalent spare roller 16 is also arranged on the exchanger of the second processing step. Foil 18 and 19 to move in two process steps, passes through the array station 20 foil strands Ru are arranged in order to obtain the precise shape of the foil tube following the tube forming station 2. The tube forming station 2 transforms the previous flat foils 18, 19 into open foil tubes. As a result, the flat foils 18 and 19 in front of them are formed into a tube shape and sealed vertically. As a result, the shape of the foil tubes 27 and 27a is obtained. The foodstuffs are led to open foil tubes in the area of the tube forming station 2.
[0023]
After passing through the tube forming station, the foil tubes 27, 27a first pass through a forming station 3 consisting of parallel belts 34 filled with the substance to be packed and having a gap. Foil tubes 27, 27a pass through the gap and are formed into rectangular foil tubes 27, 27a from the circular or oval preformed foil tubes of tube forming station 2. After passing through the tube forming station 3 as described above, it is desirable to fill the tube forming station with a fusible substance and then send it to the cooling station 4.
[0024]
The cooling station 4 does not need to have a water tank as described later. Other cooling methods can also be adopted. For example, an air cooling method, a cooling method using heat sink cooling corresponding to a cooling disk, or the like can be considered.
[0025]
The illustrated cooling station 4 comprises a tank of essentially dynamic fluid, in which rectangular foil tubes 27, 27a filled with hot substance circulate in the tank of dynamic fluid until the required cooling is achieved. A series of guide rollers are arranged in the tank so as to be moved back and forth.
[0026]
As illustrated, the foil tube, when away from the molding station 3, initially sent by the upper conveyor 28 consisting of parallel longitudinal direction of the belt 28, 29 is guided to the tank of the dynamic fluid. The foil tubes 27, 27a reach an area of the upper longitudinal belt 28 which faces the lower horizontal conveyor 30. The conveyor 30 ensures additional guiding and shaping of the foil tube during the cooling process. The foil tube 27 is guided by a guide roller 31 in an eight-shape and guided along the bottom of the dynamic fluid tank 5 to another guide roller 35.
[0027]
The other foil tubes 27a are likewise fed by guide rollers 31, 35, 36, and the two foil tubes 27, 27a are superimposed on each other as soon as they leave the tank 5 and are passed through the drying station 6 in this state. You. In front of the drying station 6, a wiper for removing water from the tank 5 is provided. Both foil tubes 27, 27a are dried in the area of the drying station 6 by hot or cold air.
[0028]
Both foil tubes are guided by two parallel guide rollers and to the transfer station 7. The purpose of the transfer station 7 is to drive the foil tubes 27, 27a continuously and to guide it to the rejection station 8 thereafter. The driving speed of the transfer station 7 and the driving speed of the molding station 3 match.
[0029]
Details of the rejection station 8 and the sealing station 9 are shown in FIG.
[0030]
Foil tube 27,27a are expelled station 8 each, and the subsequent sealing station 9 introduced into a flat row together. That is, each foil tube 27,27a is, their respective expulsion station 8 and sealing station 9 is assigned. Therefore, FIG. 2 shows only the process of one foil tube, for example, foil tube 27. As shown in FIG. 2, after passing through the transfer station 7, the foil tube 27 reaches the area of the rejection station 8.
[0031]
The rejection station comprises an upper roller 38 having a rejection web 39 essentially radially disposed on the outer peripheral surface, and a lower roller 40 on which a chain or ratchet belt 41 with a support web 42 is hung and opposed to the upper roller. ing. As a result, the chain or ratchet belt 41 drives the roller 40.
[0032]
As soon as the rectangular foil tube 27 filled with cooled material reaches the area between the two rollers 38, 40, a radially outwardly directed repulsion web 39 spreads over the entire width of the foil tube. In a small area, the material is repelled both inside and outside, ie in the longitudinal direction of the foil tube. The support web 42 serves to support the chain or ratchet belt 41 so that the processed foil 27 ′ does not slack between the ejection station 8 and the sealing station 9. Furthermore, the rejection web 39 directed radially outward is disposed in a region in contact with the lower roller 40, and the two rollers 38, 40 are arranged such that the rejection web 39 of the upper roller 38 hits the rejection web 39 of the lower roller 40. Has been adjusted. Thus, the desired shaping of the foil tube with the web is achieved.
[0033]
The foil tube 27 ′ separated in web form and not yet sealed reaches the area of the sealing station 9. Again, there are two rollers arranged opposite one another having a heated sealing web 45 directed radially outward, so as to impart a desired narrow sealing seam in the area of the rejection web. Both rollers 43, 44 are heated as required.
[0034]
It is important that the sealing station 9 is located close to the rear of the rejection station 8 in order to prevent the pre-separated web from accidentally opening by the material that can flow back in the foil tube. Opening parts of the web may affect sealing performance. In effect, the material is cooled to such an extent that it becomes a viscous glue that delays backflow into the separated web area.
[0035]
In the area between the rejecting station 8 and the sealing station 9, no deformation of the cooled foil tube 27 'will be possible, so that for the first time a relatively narrow sealing seam with high sealing performance is obtained. It becomes possible. As a result, a high-performance sealing (strong sealing seam) is ensured despite the narrow sealing area.
[0036]
After passing through the sealing station 9, sealed foil tube reaches the region of the smoothing station 10, where both tubes 27,27a includes a long smoothing loop 22 Ri good, it is divided into a shorter smoothing loop 21. Each loop consists of portions of the foil tube that are in continuous contact but are separated from each other by a seal, so that each portion is filled with material. The purpose of the smoothing station 10 is to connect the continuous transportation of the transfer station 7, to the next cutting and cyclical transport that has been used in the assembly station 12. For this purpose, there are foil transport stations 11, 11a which undertake cyclic transport. In other words, the smoothin groups 21, 22 form a kind of vertically long buffer which guarantees the subsequent circulation operation of the foil transport stations 11, 11a.
[0037]
At the cutting and assembly station 12, each sealed portion is cut into individual foil tubes, and two different packages from the separated foil tubes are placed in a stack tray 33 after they have been cut by the cutting station 32. Are stacked. The stacking trays 33 form stacks 25, 26, which are conveyed by conveyor belts 23, 24 to a packaging station.
[0038]
The above description describes two different production lines of the device according to the invention. The invention can be used with only one production line or more than two production lines.
[Brief description of the drawings]
FIG. 1 is a side view of an apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged side view showing details of an exclusion processing unit in the apparatus of FIG. 1;
[Explanation of symbols]
2 Tube forming station 4 Cooling station 5 Tank 6 Drying station 7 Transfer station 8 Rejection station 9 Sealing station 10 Finishing station 11 Foil transfer station 12 Assembly station 27 Foil tube 32 Cutting station 33 Assembly station 39 Rejection web 41 Chain 45 Sealing web

Claims (10)

A packaging device for packaging a liquid, semi-fluid, or soft substance in a sealed foil tube,
A cooling station for cooling the foil tube into which the substance has been introduced;
A rejection station for rejecting the substance from a web-like rejection area across the width of the foil tube;
A sealing station for sealing the foil tube in which the exclusion area is formed in the exclusion area in the exclusion area,
The rejection station includes at least two rollers that rotate in opposite directions, facing each other to form a gap, through which the foil tube passes, wherein the rollers substantially match the width of the foil tube. A rejection web that divides the outer circumference in the radial direction, wherein the rejection web of one of the rollers contacts the rejection web of the other roller when rotating,
The sealing station includes at least two rollers that rotate in opposite directions, opposing each other to form a gap, through which the foil tube passes, wherein the rollers are heated radially facing sealing webs. At the outer circumference, the sealing web of one of the rollers contacts the sealing web of the other roller during rotation,
The cooling station includes a tank of fluid and a plurality of guide rollers disposed in the tank, and moves the foil tube, into which the substance is introduced, back and forth multiple times in the tank using the guide rollers. Cooling equipment. In claim 1,
The packaging device, wherein the rejection station receives the foil tube cooled in the cooling station and rejects the substance from a rejection area of the foil tube. A packaging device for packaging cheese in a sealed foil tube,
A tube forming station in which a flat foil is wound and the overlapping edges are sealed to form a continuous long seal;
At the tube forming station, supply means for supplying a melted cheese to the foil tube,
A cooling station disposed after the tube forming station and comprising cooling means for cooling the cheese in the foil tube to a viscous glue state;
At least two rollers disposed after the cooling station and rotating in opposite directions opposite to each other to form a gap, the foil tube passing through the gap, wherein the rollers have a width equal to the width of the foil tube; A rejection web comprising a substantially coincident rejection web that divides a radially outward periphery, wherein the rejection web of one of the rollers contacts the rejection web of the other roller during rotation; and
At least two rollers disposed opposite the rejection station and rotating in opposition to each other to form a gap, wherein the foil tube passes through the gap and the rollers are heated in a radial direction. A sealing station, wherein the sealing web of one of the rollers contacts the sealing web of the other roller during rotation, the sealing web being divided at the outer circumference by
Packaging device. In any one of claims 1 to 3 ,
Rollers below the rejection station and the sealing station are connected and driven by a chain or a ratchet belt,
The packaging apparatus, wherein the chain or ratchet belt comprises a support web that supports the chain or ratchet belt such that the foil tube does not slack between the rejection station and the sealing station. In any one of claims 1 to 4 ,
A packaging device, wherein the two sealing stations are arranged one behind the other, the first sealing station performing a pre-sealing and the second sealing station performing a final sealing. In any one of claims 1 to 5 ,
The packaging device, wherein the rejection web or the sealing web is disposed on a specific roller in a radial direction, and is movable with a built-in spring. In any one of claims 1 to 6 ,
The packaging device, wherein the rollers below the rejection station and the sealing station are driven by a rotation method. In any one of claims 1 to 7 ,
A packaging device further comprising a transport station, which is disposed before the rejection station in the transport direction of the process and continuously drives the foil tube in the transport direction. In any one of claims 1 to 8 ,
The packaging device, wherein the sealing station is located immediately after the rejection station. In claim 1,
The packaging device, wherein the substance is cheese.

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