A kind of method of manufacturing package with packing
Patent application of the present invention is based on the dividing an application of application for a patent for invention that application name that the applicant proposes for the first time is called a kind of method of folding package piece bottom end plate folding, the applying date of original application is on December 6th, 2011, application number is 201110398829.8, and the applicant has received the Grant Patent Right for Invention notice of the original application that State Intellectual Property Office sent on October 09th, 2013.
Technical field
The present invention relates to a kind of method of manufacturing package with packing, relate in particular to a kind of method that there is the package of longitudinal sealing band, end folds, flap with the packing manufacture.
Background technology
At present, on market, there are many pourable food products to be sold in the collation package part of being made by the packing of sterilizing as milk, beverage, fruit juice etc. are filled to.The exemplary of this collation package part is the collation package part of parallelepiped shape, and it is made by the banded packing that fold and seal lamination.Packing have multiple-structure, and it comprises one deck fibrous material layer, such as paper; And two-layerly be coated with the thermoplastic material layer at this layer simultaneously, such as polyethylene; And also comprise one deck barrier layer in final contact food one side of packing, such as aluminium foil; And apply one or more layers heat-seal plastic material on this barrier layer, thereby the inner face of the package of final formation and Food Contact.
As everyone knows, the package of the above-mentioned type is produced in full automatic wrapping machine, at the upper packing of supplying with from belt-like form of wrapping machine, forms continuous body.These band shape packing are by such as applying chemosterilant, superoxol and being sterilized on wrapping machine for example, and this superoxol is removed after processing, and the surface evaporation by heating from packing is fallen.And the packing after sterilization are maintained in environment sealing, that sterilized, and end wise is folded and sealing, thereby forms vertical body.
Then packaging material tube is filled the food as package object, in the sealing of the transverse part office of equi-spaced apart, and cut into many pillow-like packages 3 (Fig. 1) along these lateral parts, then it is delivered to folding device, at this place, it is folded with mechanical means and forms corresponding package, such as the package that is essentially parallelepiped.
As illustrated in fig. 1 and 2, each package 3 has longitudinal sealing band 4, a side along each package 3 is extended, and this package is sealed in relative end by corresponding transverse sealing band 5,6, this transverse sealing band 5,6 perpendicular to and be connected on longitudinal sealing band 4.
Each package 3 has the axis that is parallel to longitudinal sealing band 4, and comprises the principal part 7 of parallelepiped-shaped; And relative end, top 8 and the bottom end 9 of difference, it is tapered towards corresponding transverse sealing band 5,6 from principal part 7.
More particularly, the principal part 7 of each package 3 is by two planar rectangular walls 10 that are parallel to each other and parallel to the axis, and by two planar rectangular walls 11 that vertically extend between planar rectangular wall 10 and laterally restriction.
Each end sections 8,9 becomes the wall 12 of isosceles trapezoid to limit by a pair of basically, this a pair of wall 12 tilts slightly with respect to the plane vertical with axis A toward each other, and there is the square limit that the respective edges by the wall 10 of principal part 7 limits, with by the interconnected long limit of corresponding potted line 5,6.
Longitudinal sealing band 4 extends between transverse sealing band 5 and transverse sealing band 6, and correspondingly keeps away 12 and extend along a planar rectangular wall 10 whole and along what with planar rectangular wall 10, be positioned at the same side.
Each transverse sealing band 5,6 forms corresponding elongated rectangle end folds 13,14 basically, and this end folds 13,14 direction along axis A from relative package 3 is outstanding; And form two and be essentially leg-of- mutton flap 15,16, this flap 15,16 is laterally outstanding on the opposite side of principal part 7, and is limited by the end of relative wall 12.
In order to form packing container 2, folding device flattens the end of relative package 38,9 downwards opposite to each other, and corresponding end folds 13,14 is folded on end 8,9.
Chinese invention patent specification sheets CN1105667C discloses the high-speed folding unit that a kind of machine of packing pourable food product is used, as shown in Figure 3, this device comprises: supply with station 22 for one, for supplying with the pillow-like package 3 of a series of sealings containing described food, each package has a plurality of folded parts 15,16, prepares to fold and be sealed in the corresponding wall 12 of package 3, on 11, with the package 2 that forms corresponding parallelepiped-shaped; Conveying mechanism 21, for along the described package 3 of forming path B feeding, this forming path B extends to output station 23 from described supply station 22; Fold mechanism 24,25,26, arrange and coordinate with each described package 3 along described forming path B, in order to complete the respective folded operation to package 3; Heating arrangements 27, act on the described folded part 15,16 of each described package 3, to melt described folded part 15,16 and it is sealed on corresponding described wall 12,11; Last hold-down mechanism 28, coordinate with each described package 3, when cooling with convenient folded part 15,16, corresponding described folded part 15,16 is fixed on corresponding described wall 12,11; Described conveying mechanism 21 is continuous, by a cyclic conveyor, formed, comprise a plurality of push mechanism for corresponding described package 3 32, one for the conveying segmentation 33 along the described push mechanism 32 of described forming path B feeding and described package 3,35a, 36a, and one returned to segmentation 34 for what described push mechanism 32 was fed into to described supply station 22 from described output station 23,35b, 36b; And described fold mechanism 24,25,26 and described hold-down mechanism 28 comprise the interactional interaction parts 44,50 of a plurality of and described package 3,55,58,70,71,72, they have fixing size, and coordinate with package 3 by means of the motion of described conveying mechanism 21; Also be provided with parts 90 on frame, when package 3 slides facing to parts 90, fin 14 is folded on end sections 7, and end sections 7 is driven plain.The conveying mechanism 21 of this folding device only plays the effect of bull ladle piece installing 3, and the function that fin 14 folds on end sections 7 needs parts 90 to complete, complex structure.
Chinese invention patent specification sheets CN100556760C discloses a kind of folding unit for dumpable food product packaging machine, as shown in Figure 4, for the packing 2 from hermetically sealed package 3 production pourable food products, it has longitudinal axis A and has at least one treats folding end folds 14, and end folds 14 is outstanding on the aforementioned axis direction, folding unit 1 has at least one transfer unit 35,28, transfer unit 35,28 is by the end relative with end folds 14, and with the coaxial direction of the supply C of described longitudinal axis A on, receive circularly relative packing material 3, and the forming path B that intersects along the longitudinal axis A with packing material 3 of transfer unit 35,28 and supply with packing material 3, and fold mechanism 24, it interacts with each packing material 3 along described forming path B, with the end folds 14 by relative, folds on the end, bottom 9 of packing material 3, fold mechanism 24 comprises shock surface 43, shock surface 43 receives each packing material 3 by the end corresponding with end folds 14, and shock surface 43 is by transfer unit 35, 28 carryings, to move between the first run location and the second run location, in the first run location, shock surface 43 forms the angle of opening more than 90 degree of forming path B direction with the direction of the supply C of relative packing material 3, thereby the impact according to the end folds 14 to relative, make opposed end tabs 14 along forming path B and fold on packing material 3 at the direct of travel of packing material, in the second run location, shock surface 43 rotates towards packing material 3, and cooperate with packing material 3, to complete relative end folds 14 folding on described packing material 3.This folding unit belongs to a kind of chain delivery machanism, the process that packing material is transported to the output station from the feeding station, the shock surface of fold mechanism completes end folds is folded into to the operation on end sections, yet, mechanism's complexity of fold mechanism is set on transfer unit, and end folds is to fold into forward on end sections, in packing material continues to advance and carries out the operating process of folding wing, end folds after folded easily and the folding device effect dug and affected subsequent operation, thereby affect the forming effect of package.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of method of manufacturing package with packing, package is transported to output station process from the feeding station, the end folds of package is folded back onto on end sections, guarantee can not dug at follow-up folding wing operation medial end portions tabs, make the folding wing operation smooth and easy, the package forming effect is good.
For solving the problems of the technologies described above, the invention provides a kind of method of manufacturing package with packing, comprise the following steps:
A, packing are disinfected;
B, will be through the packing of sterilization longitudinal folding and sealing form body, sealing place forms the longitudinal sealing band;
C, sealed tube body lower end, the transverse sealing band forms end folds, and lower vertex angle part forms flap;
D, to pouring in liquid food in body;
E, sealed tube body upper end form the package of sealing, and the transverse sealing band forms end folds, and the bight, upper end forms flap;
F, will not complete folding package and deliver to folding device, and end folds will be folded and is sealed on end, then flap will be folded and will be sealed to the complete package of formation on sidewall;
It is characterized in that: the folding device of described step F comprises by the hinged annular articulated link chain formed of a plurality of stations chain link, this annular articulated link chain comprises the C shape section of the horizontal top branch of straight line, bottom branch and two bendings, and C shape section is positioned at respectively the two ends of top branch and bottom branch; The middle part of this C shape section defines respectively supply system and output stage;
On the bearing surface of this station chain link, be fixed with for clamping and promote the blade of package, this blade chain link of standing divides orthogonal front support section and rear support section; At linear portion, the distance between the blade of two-phase neighboring station chain link equals the width L of package; The bearing surface length L 5 of front support section is slightly less than described end folds to described package trailing flank distance L 1; The aft end face of described rear support section forms the folding guide surface of guiding end folds; Step F comprises:
F1, the package that has end folds from the supply system feeding, make end folds enter the gap of two-phase neighboring station chain link;
F2, rotate annular articulated link chain, along with the top branch motion process of station chain link from C shape section to linearity, the blade of a rear station chain link promotes package and moves to top branch, makes:
The guiding parts of F3, the C of supply system place shape section top flattens the end of package;
The aft end face guiding end folds of F4, rear support section progressively folds on end.
As a modification of the present invention, the bearing surface length L 4 of described rear support section is slightly larger than the height H of described end folds and it is to described package leading flank distance L 2 sums.
As another kind of improvement the of the present invention, rear support section bearing surface and aft end face are by arc transition or chamfered transition.
As another kind of improvement the of the present invention, described rear support section bearing surface is vertical with aft end face, and this aft end face height equals or be slightly larger than the height H of described end folds.
As another kind of improvement the of the present invention, the aft end face of rear support section, to tilting away from described direction blade, forms the spigot surface of folded end tabs.
As another kind of improvement the of the present invention, rear support section bearing surface and aft end face angle are 90 °-135 °.
As another kind of improvement the of the present invention, rear support section aft end face equals or is slightly larger than the height H of described end folds perpendicular to the standoff height of bearing surface.
As another kind of improvement the of the present invention, the bearing surface of rear support section and aft end face form acute angle.
As another kind of improvement the of the present invention, the front end face of front support section is parallel to the aft end face of described rear support section.
The present invention compared with prior art, in folding process, because the bearing surface length L 5 of front support section is equal to or slightly less than end folds to described package trailing flank distance L 1, package is after the supply system feeding, package can be entered the gap of station chain link by the support of the blade of a rear station chain link and its end folds, along with the top branch motion process of station chain link from C shape section to linearity, the blade of a rear station chain link promotes package and draws close to the blade of last station chain link, the aft end face of rear support section forms the folding guide surface of guiding end folds, make end folds be exited in gap gradually and be folded back onto end sections by front, therefore, the present invention is without additional components or device are set, only rely on station chain link itself to complete the folding operation of folding part tabs, guarantee can not dug at follow-up folding wing operation medial end portions tabs, make the folding wing operation smooth and easy, simply, the package forming effect is good.
The accompanying drawing explanation
Fig. 1 is the schematic perspective view of the package before folding.
Fig. 2 is the schematic diagram of the side-looking of Fig. 1.
Fig. 3 is the schematic perspective view of a kind of folding device of folding bag piece installing in prior art.
Fig. 4 is the schematic diagram of a kind of chain-linked conveyer of folding package piece bottom end plate folding in prior art.
Fig. 5 is the schematic diagram for a kind of chain-linked conveyer of the present invention.
Fig. 6 is the schematic diagram for the first station chain link of a kind of chain-linked conveyer of the present invention.
Fig. 7 is the schematic diagram for the second station chain link of a kind of chain-linked conveyer of the present invention.
Fig. 8 is the view of package from the supply system supply.
Fig. 9 is the view that the end folds of package enters chain link gap, station.
Figure 10 is the folding view of the end folds of package.
Figure 11 is the view that the end folds of package folds into end.
The specific embodiment
Refer to Fig. 5, chain-linked conveyer of the present invention, along being mainly linearity and horizontal forming path B, be supplied to (both are all schematically illustrated) output stage 22 by packing material 3 from supply system 21 for continuously.
Chain-linked conveyer comprises driven wheel 25, driven gear 26, annular articulated link chain 27; Annular articulated link chain 27, by the hinged closed chain that forms of a plurality of stations chain link 35, around driven wheel 25 and driven gear 26, and meshes with driven wheel 25 and driven gear 26.
Annular articulated link chain 27 comprises the horizontal top branch of straight line 30; Be arranged essentially parallel to the bottom branch 31 of top branch 30; And the C shape section 32,33 of two bendings, C shape section 32,33 lays respectively at the two ends of top branch 30 and bottom branch 31, be arranged to make its concave face to top branch 30 and bottom branch 31, and top branch 30 and bottom branch 31 station chain links are got up to form annular shape chain, and the middle part of C shape section 32,33 defines respectively supply system 21 and output stage 22.
Path B comprises the principal part B1 of the linearity that the top branch 30 by annular articulated link chain 27 limits, and supply accordingly end B2 and export end B3, corresponding top 32a, 33a limited by C shape section 32,33 for supply end B2 and output end B3, and top 32a, 33a extend between corresponding supply system 21 and output stage 22 and top branch 30.The top 33a of the top 32a of C shape section 32, top branch 30, C shape section 33 defines the delivery section of annular articulated link chain 27, so that packing material 3 is carried and is supplied to output stage 22 from supply system 21.The remainder 33b of the remainder 32b of C shape section 32, bottom branch 31, C shape section 33 defines the section that returns of annular articulated link chain 27, standing, chain link 35 turns back to supply system 21 from output stage 22, so annular articulated link chain 27 cycle operation, package 3 is constantly carried and is supplied to output stage 22 from supply system 21, the end folds 14 of package 3 bottoms is folded on end sections 9, and the end folds 13 on package 3 tops is folded on end sections 8 under guiding parts 40 effects of folding device 23.
As shown in Figure 5 and Figure 6, station chain link 35 lateral surfaces of annular articulated link chain 27 are smooth rectangular surfaces, form the bearing surface of support package piece installing 3, vertically be fixed with blade 28 on the lateral surface of station chain link 35, this blade 28 is for the planar rectangular wall 10 that clamps package 3 and promote package 3, along path B, to supply with packing material, when the top branch 30 of linear portion, the distance between the blade 28 of two adjacent links 35 equals distance between the planar rectangular wall 10 of package 3 shown in width L(Fig. 2 of package 3).
The blade 28 35 minutes orthogonal section of the front support for support package piece installing 3 37 and the rear support sections 36 of chain link of standing, front support section 37 refers to the position in annular articulated link chain 27 bull ladle piece installing direct of travel upstreams (the place ahead) of same station chain link 35, and rear support section 36 refers to the position in annular articulated link chain 27 bull ladle piece installing direct of travel downstreams (rear) of same station chain link 35, the front end face of front support section 37 is parallel to the aft end face of described rear support section 36, and the bearing surface of the bearing surface of rear support section 36 and front support section 37 is in same plane, rear support section 36 bearing surfaces are vertical with aft end face and, by arc transition or chamfered transition, this aft end face height equals or be slightly larger than the height H of described end folds 14, form the guide surface of folded end tabs 14, front support section 37 is different along the length of path B with rear support section 36: the bearing surface length L 5 of front support section 37 is equal to or slightly less than described end folds 14 to package 3 trailing flank distance L 1, be convenient to like this when supply system 21 place's supply package 3, end folds 14 can enter in the gap 43 of 35 of two-phase neighboring station chain links, correspondingly, the bearing surface length L 4 of rear support section 36 equals or is slightly larger than the height H of end folds 14 and it is to package 3 leading flank distance L 2 sums, after adopting the structure that such length is different, 32a place, top due to the C shape section 32 in supply system 21 correspondences, as shown in Fig. 8 to 11, have and there is gap 43 between the front support section 37 of two station chain links 35 of annular articulated link chain 27 and rear support section 36, when package 3 after supply system 21 feedings, package 3 is supported by the blade 28 of a rear station chain link 35 and its end folds 14 can enter this gap 43, along with top branch 30 motion processes of station chain link 35 from C shape section 32 to linearity, the blade 28 of a rear station chain link 35 promotes package 3 and draws close to the blade 28 of last station chain link, this gap 43 dwindles gradually, end folds 14 is exited and is folded back onto end sections 9 gradually by the aft end face barrier effect of last station chain link 35 rear support sections 36 in gap 43 simultaneously.
According to the structure of chain-linked conveyer, blade 28 goes out to be rendered as at the principal part B1 of path B and is placed vertically, in the position of supplying with platform 21, output stage 22 and go out to present approximate horizontal.
Each package 3 is placed on conveyer and end 9 contacts with the delivery section of annular articulated link chain 27, and after one of them side in planar rectangular wall 10 is shelved on the blade 28 of a station chain link 35, and axis A is parallel to this blade 28, and intersects with path B.
At supply system 21 places, each package 3 is supplied on chain-linked conveyer on direction of the supply C and at the horizontal input position place of supply system 21, this direction of the supply C is coaxial with the axis A of package 3, at this horizontal supply position place, end 9 and relative end folds are towards the conveying position section of annular articulated link chain 27 and place.Similarly, each packing container 2 after having folded removes from conveyer in the horizontal output position of output stage 22.
For the end folds 14 that prevents package 3 is extruded damage, when linear portion, be formed with gap between the aft end face of the front end face of the front support section 37 of described station chain link 35 and the rear support section 36 of phase neighboring station chain link 35, the width in gap is equal to or greater than the thickness of end folds 14, and the degree of depth in gap equals or be slightly larger than the height of end folds 14.
As another embodiment of the present invention, be different from above-described embodiment: as shown in Figure 7, the aft end face of rear support section 36 is to tilting away from described blade 28 directions, form the spigot surface of folded end tabs 14, the inclined degree of aft end face is that rear support section 36 bearing surfaces and aft end face angle are 90 °-135 °, and rear support section 36 aft end faces equal or be slightly larger than the height H of end folds 14 perpendicular to the standoff height of bearing surface, end folds 14 can all be contained in gap 43.
Certainly, the bearing surface of rear support section 36 and aft end face form acute angle, also can realize purpose of the present invention.