WO2015058424A1 - 新型袋成形装置及包装机 - Google Patents

新型袋成形装置及包装机 Download PDF

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Publication number
WO2015058424A1
WO2015058424A1 PCT/CN2013/086496 CN2013086496W WO2015058424A1 WO 2015058424 A1 WO2015058424 A1 WO 2015058424A1 CN 2013086496 W CN2013086496 W CN 2013086496W WO 2015058424 A1 WO2015058424 A1 WO 2015058424A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
steering
bag
packaging
packaging film
Prior art date
Application number
PCT/CN2013/086496
Other languages
English (en)
French (fr)
Inventor
解万鹏
苏立波
解鹏程
Original Assignee
广州市一路高包装机械技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市一路高包装机械技术有限公司 filed Critical 广州市一路高包装机械技术有限公司
Priority to EP13889356.5A priority Critical patent/EP2886468B1/en
Priority to ES13889356.5T priority patent/ES2649471T3/es
Priority to US14/419,858 priority patent/US10392141B2/en
Publication of WO2015058424A1 publication Critical patent/WO2015058424A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/02—Feeding sheets or wrapper blanks
    • B65B41/10—Feeding sheets or wrapper blanks by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/003—Packaging lines, e.g. general layout
    • B65B65/006—Multiple parallel packaging lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/06—Cutting webs along their longitudinal direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/22—Forming shoulders; Tube formers

Definitions

  • the invention relates to the field of packaging equipment, in particular to a novel bag forming device and a packaging machine.
  • the packaging method of the package is generally divided into three sides (as shown in Figure 1, 2), four sides (as shown in Figure 1, 2, B), and back seal (Figure 1, 2, C). ).
  • the multi-row three-side sealing packaging machine has the advantages of high automation and high efficiency, and is favored by people.
  • the existing three-side sealing multi-row packaging machine generally comprises a film feeding mechanism, a slitting mechanism, a feeding mechanism, a bag forming mechanism, a bag-drawing mechanism, a longitudinal sealing mechanism, a transverse sealing mechanism, a cutting mechanism, and the bag forming mechanism is used as a packaging machine.
  • the important components directly affect the function and performance of the packaging machine.
  • Patent Document No. 96197906. 2 discloses a packaging machine with a forming tube in which a roll of deformable material is wound around the forming tube to form a continuous sleeve, through a longitudinal seal, and then laterally. Sealed to obtain a filled and sealed package containing a forming device that produces a gusset on the sleeve along the portion between the later two transverse seams
  • the gusset may constitute the bottom structure of the package, and when the package is rotated and placed on a level ground, it will have the necessary base for standing stably in a vertical state.
  • the packaging film is directly input from the rear of the forming pipe to the forming pipe, when the packaging machine is packed in a multi-row three-side sealing manner (that is, a plurality of forming pipes arranged in the first direction), one piece After the packaging film is slit into a plurality of strip packaging films by the slitting mechanism of the packaging machine, the plurality of packaging films are respectively input from the rear of the forming tube to the forming tubes, and are longitudinally folded by the forming tube; At this time, as shown in FIG. 3, the longitudinal opening of the longitudinally folded packaging film faces a second direction perpendicular to the first direction (that is, toward the front of the forming tube), and is subjected to the folding direction and the longitudinal opening direction of the packaging film.
  • each packaging film needs to use a separate bagging mechanism, vertical sealing mechanism, transverse sealing mechanism, cutting mechanism to carry out bagging, vertical sealing, horizontal sealing, cutting, so that the multi-row three-side sealing packaging machine It is difficult for the strip packaging film to simultaneously realize the drawing, longitudinal sealing, transverse sealing and cutting. Since each of the independent bag-drawing mechanisms includes two rotating shafts and a pulling-bag wheel on the rotating shaft, in order to enable the plurality of packaging films on the multi-row three-side sealing packaging machine to simultaneously realize the drawing, it is necessary to be in all the bag-holding mechanisms.
  • a synchronous control device is connected to the rotating shaft to synchronize the respective rotating shafts to drive the synchronous rotation of the pair of pulling bag wheels, thereby facilitating the simultaneous pulling of the plurality of packaging films on the packaging machine.
  • a synchronous control device is connected to the rotating shaft to synchronize the respective rotating shafts to drive the synchronous rotation of the pair of pulling bag wheels, thereby facilitating the simultaneous pulling of the plurality of packaging films on the packaging machine.
  • one of the objects of the present invention is to provide a novel bag forming device which can solve multiple rows and three sides in order to satisfy that each packaging film can simultaneously pull, longitudinally seal, cross seal, and cut.
  • the structure of the packaging machine is relatively complicated and the production cost is high.
  • Another object of the present invention is to provide a packaging machine.
  • a novel bag forming device comprising at least two bag forming mechanisms, each bag forming mechanism correspondingly for each strip-shaped wrapping film passing; the bag forming mechanism each comprising a turning element and a folding element; the folding element comprising a discharge forming tube , the discharge forming tubes of each bag forming mechanism are sequentially arranged along the first direction;
  • the steering element the packaging film input from the rear of the steering element toward the front end of the steering element, is circulated from a front end of the steering element to a side end of the steering element and then transmitted to the steering element as it passes through the steering element
  • the other side end of the discharge forming tube is transported by a film transport route that is transported downward; wherein the two side ends are left and right side ends of the steering element and are distributed along the width direction of the steering element, the steering element
  • the width direction is consistent with the first direction; the steering element is disposed on the film-traveling path and is used for the film to bypass the film position for turning the packaging film;
  • the folding element, the packaging film that is transported downward is folded in the longitudinal direction when passing through the folding element;
  • the longitudinal openings of the packaging film are all oriented in a first direction; wherein the downwardly transporting packaging film is transported along the axial direction of the discharge forming tube as it passes through the discharge forming tube.
  • the steering element includes a first turning part, a diagonal turning part located above the first turning part, and a second turning part; the front end surface of the oblique turning part is an obliquely disposed inclined surface; the film position includes a package The outer side surface of the second turning part, the outer side surface of the first turning part, and the outer side surface of the second turning part; the outer side surface of the second turning part for wrapping the wrapping film and the first turning part are wrapped around the packaging film The outer side surface of the warp is distributed along the width direction of the steering element; from the one side end of the inclined surface close to the outer side surface of the first turning piece to the other side end close to the outer side surface of the second turning piece, the inclined side surface gradually Tilt back.
  • An orthographic projection of the outer surface of the first corner piece on the reference surface formed by the first direction and the second direction is a first projection
  • an orthographic projection of the oblique plane on the reference surface is a second projection
  • the first projection The outer edge is located on one side of the second projection; wherein the height direction of the steering element is perpendicular to the first direction, and the second direction is perpendicular to the first direction and the height direction of the steering element.
  • the second turning member and the first turning member both extend along the second direction, wherein the height direction of the steering element is perpendicular to the first direction, and the second direction is perpendicular to the first direction and the height direction of the steering element;
  • the turning portion, the first turning member and the second turning member are arranged in order from top to bottom.
  • the bag forming device comprises at least two deflecting plates, each of which is arranged along a first direction; the steering plate is uniformly provided with steering elements at both side ends in the first direction, and the oblique turning portions on the two steering elements are formed On the steering plate, the two obliquely folded surfaces on the steering plate are symmetrically arranged; the steering plate and its corresponding two steering elements are combined into a steering unit, and the steering units are arranged along the first direction, any adjacent The two steering units are staggered in the height direction; the discharge forming tubes corresponding to the two steering elements on the same steering unit are arranged on the adjacent side of the two steering elements.
  • the respective steering elements are sequentially arranged along the first direction, and the adjacent two steering elements are offset from each other in the height direction.
  • the novel bag forming device further includes a path adjusting mechanism, the packaging film first passes through a path adjusting mechanism and then passes through a bag forming mechanism;
  • the path adjusting mechanism includes a mounting bracket and a fixed guiding film shaft mounted on the mounting bracket to be adjustable Positionally mounted to the movable guide shaft on the mounting bracket; the fixed guide shaft extends in the first direction.
  • the folding element further includes a restricting member; the restricting member is formed with a through-membrane passage, and the through-membrane passage includes an arc groove portion through which the discharge forming tube passes, and a limiting portion communicating with the arc groove portion and having a strip shape; The limiting portion extends along the first direction.
  • the packaging machine comprises a film feeding mechanism, a slitting mechanism, a feeding mechanism, a bag pulling mechanism, a longitudinal sealing mechanism, a transverse sealing mechanism, a cutting mechanism, and the above-mentioned new bag forming device; the film feeding mechanism, the slitting mechanism, the bag
  • the forming device, the bag pulling mechanism, the longitudinal sealing mechanism, the transverse sealing mechanism, and the cutting mechanism are sequentially disposed along the conveying direction of the packaging film; and the feeding mechanism is configured to convey the material to the discharge forming tube of the bag forming device.
  • the bag pulling mechanism comprises two mutually parallel rotating shafts, at least two rotating wheel assemblies corresponding to the respective bag forming mechanisms, and a driving mechanism, wherein the axial direction of the rotating shaft is consistent with the first direction;
  • the utility model comprises two pull bag wheels and a compensation wheel which is in contact with one of the pull bag wheels; the drive mechanism is used for driving the compensation wheel and the rotating shaft; the two pull bag wheels on the same rotating wheel assembly respectively correspond to the two rotating shafts And being mounted on the corresponding rotating shaft through the one-way bearing; after the folding film is folded in half, passing between the two pulling bag wheels of the corresponding rotating wheel assembly, and driving the packaging film under the rotation of the two pulling bag wheels shift.
  • the invention can reasonably adjust the direction of the packaging film and the longitudinal opening direction of the longitudinally folded packaging film, and when it is applied to the multi-row three-side sealing packaging machine, the bagging mechanism, the transverse sealing mechanism, the longitudinal sealing mechanism and the cutting mechanism can be reasonable
  • the bagging mechanism, the transverse sealing mechanism, the longitudinal sealing mechanism and the cutting mechanism can be reasonable
  • horizontal sealing, cutting, and the use of synchronous control devices to create a multi-row three-side sealing packaging machine structure is more complex, higher production costs.
  • A shows a packaging method of a three-side sealing
  • B shows a packaging method of a four-side sealing
  • C shows a packaging manner of a back sealing
  • Figure 2 is a plan view of Figure 1;
  • Figure 3 is a schematic view showing the longitudinal opening of the packaging film on the packaging machine in the patent document No. 96197906. 2;
  • Figure 4 is a schematic view showing the structure of the novel bag forming device of the present invention;
  • Figure 5 is a schematic structural view of the bag forming mechanism of Figure 4.
  • Figure 6 is a schematic view showing the orientation of each packaging film in the bag forming device
  • Figure 7 is a schematic view showing the orientation of the packaging film of Figure 6 in a bag forming mechanism
  • Figure 8 is a schematic view showing the longitudinal opening of the longitudinally folded packaging film
  • Figure 9 is a projection view of each steering assembly on a reference surface
  • Figure 10 is a schematic structural view of another novel bag forming device of the present invention.
  • Figure 11 is a schematic view showing the structure of the bag forming mechanism of Figure 10;
  • Figure 12 is a schematic view showing the structure of the length adjustment mechanism in the novel bag forming device of the present invention.
  • Figure 13 is a schematic structural view of the packaging machine of the present invention.
  • Figure 14 is a schematic structural view of a compensation mechanism in a bag pulling mechanism in a packaging machine
  • the present invention is a novel bag forming device comprising at least two bag forming mechanisms. Since a single bag forming mechanism is provided for a single wrapping film, each bag forming mechanism is correspondingly provided on the packaging machine. Each strip of packaging film 8 passes.
  • Each of the bag forming mechanisms includes a steering member 10 and a folding member for sequentially passing the respective corresponding packaging films 8; the folding members include a discharge forming tube 31, as shown in Figs. 6, 7, 8, and 9, each bag forming mechanism
  • the discharge forming tubes 31 are sequentially arranged along the first direction X, and are now described in detail by one of the bag forming mechanisms:
  • the steering member 10, the folded-back member, and the discharge-forming tube 31 located in the same-folding member are located in the same bag forming mechanism;
  • the side end is retransmitted to the film transfer route of the steering member 10 near the other side end of the discharge forming pipe 31 and then ⁇ downward transmission>; the two side ends are the left and right sides of the steering member 10.
  • the width direction of the steering element 10 is aligned with the first direction X; wherein the two side ends of the steering element 10 are only distributed along the width direction of the steering element,
  • the height positions of the both side ends may be set to be the same or may be set to be different, and preferably, the both end portions are staggered in the height direction.
  • the shape of the two side ends can be set to be the same or different according to actual needs.
  • the steering element 10 is provided on the film path and is used for the wrapping film 8 to bypass the filming position that causes the packaging film 8 to turn.
  • the folding film, the downwardly transporting packaging film 8 is folded in a U-shape when being folded over the folded element; the longitudinal opening 81 of the longitudinally folded packaging film 8 is oriented in the first direction X; wherein, downward The transported packaging film 8 is transported in the axial direction of the discharge forming tube 31 as it passes through the discharge forming tube 31.
  • the single packaging film 8 is cut into strip-shaped packaging films by the slitting mechanism 300. 8 , before working, first end of each strip of packaging film 8 from the rear of the steering element 10 along the film path to the corresponding steering element 10, and longitudinally folded on the corresponding folding element; During the continuous transmission of the film 8, the input portions of the respective packaging films 8 are input from the rear direction of the steering member 10 to the corresponding steering member 10, and then traveled through the steering member 10 along the film path, and then transmitted downward through the folded portion.
  • the elements are formed in a longitudinal fold, and the longitudinal openings 81 of the wrapping film 8 passing through the folded elements are all oriented in the first direction X.
  • the invention adjusts the orientation of the packaging film 8 so that the longitudinal opening 81 of the longitudinally folded packaging film 8 faces the first direction X.
  • the two rotating shafts of the bag mechanism 400 can be placed laterally with the direction of the longitudinal opening 81 of the packaging film 8, that is, the extending direction of the rotating shaft is aligned with the first direction X, and thus, the pair of pulling pockets corresponding to the respective bag forming mechanisms
  • the wheel 91 can share the two rotating shafts, and the plurality of pairs of rotating wheels on the rotating shaft can be rotated simultaneously with the rotation of the two rotating shafts, so that each of the packaging films 8 can simultaneously pull the bag; and similarly, the longitudinal sealing mechanism
  • the two longitudinal sealing carriers of the 500 are horizontally arranged along the direction of the longitudinal opening 81 of the packaging film 8, and the pair of longitudinal sealing heating bodies corresponding to the respective bag forming mechanisms can share the two longitudinal sealing carriers, which can be along with the longitudinal sealing carrier
  • the rotation of the plurality of pairs of vertical sealing heating bodies on the longitudinal sealing carrier simultaneously performs longitudinal sealing action on the respective packaging films 8; similarly, the two transverse
  • the pair of transverse sealing heating bodies corresponding to the respective bag forming mechanisms can share the two transverse sealing carriers, and the plurality of pairs of transversely sealed heating bodies on the transversely sealed carrier can be packaged for each strip as the transversely sealed carrier rotates
  • the film 8 simultaneously performs a horizontal sealing operation; and similarly, the two cutter carriers of the cutting mechanism 700 are placed laterally with the direction of the longitudinal opening 81 of the packaging film 8, so that the pairs of cutters corresponding to the respective bag forming mechanisms can be shared.
  • the two cutter carriers can simultaneously cut the respective packaging films 8 by the plurality of pairs of cutters on the cutter carrier as the two cutter carriers rotate.
  • the operation of the bagging mechanism 400, the transverse sealing mechanism 600, the longitudinal sealing mechanism 500, and the cutting mechanism 700 can make the packaging film of each row on the three-side sealing packaging machine.
  • Simultaneous drawing, vertical sealing, horizontal sealing and cutting, without the need of various synchronous control devices, can effectively solve the problem that the structure of the multi-row packaging machine is complicated and the production cost is high. Since the structures of the bagging mechanism 400, the transverse sealing mechanism 600, the longitudinal sealing mechanism 500, and the cutting mechanism 700 are common knowledge in the industry, the bag pulling mechanism 400, the transverse sealing mechanism 600, and the longitudinal sealing mechanism 500 are not mentioned above. The structure is described in detail, but the focus is on the present invention.
  • each of the packaging films 8 is simultaneously pulled, vertically sealed, transversely sealed, and cut.
  • the shape of the discharge forming tube 31 can be set according to actual needs, for example, can be set to a hollow cylindrical shape, or a flat shape.
  • the discharge forming tube 31 can also be set to other shapes, for example, including two. a first face wall; the opposite ends of the two first face walls are connected by a first side wall; the distance between the two first face walls is gradually decreased from top to bottom, and the two first side walls are located at the discharge
  • the forming tubes 31 are on both ends in the first direction to facilitate the formation of the packaging film 8.
  • the packaging film 8 passes through the discharge forming tube 31, the packaging film 8 is wound around the outer surface of the discharge forming tube 31 to form a longitudinal fold.
  • the folding element further includes a restricting member 32; the restricting member 32 is formed with a through-film passage 321, and the through-film passage 321 includes an arc groove portion through which the discharge forming tube 31 passes, and communicates with the arc groove portion. And a limiting portion in the shape of a strip, the limiting portion extending along the first direction X.
  • the end portion of the packaging film 8 is first folded in the longitudinal direction of the film passage 321 , and at this time, the intermediate portion of the packaging film 8 surrounds the outer surface of the discharge forming tube 31, and both sides of the packaging film 8 It is located in the limiting portion; and as the packaging film 8 is continuously conveyed, the packaging film 8 passing through the restricting member 32 is folded in a U-shape in the longitudinal direction. Therefore, the longitudinal folding of the packaging film 8 can be achieved by the design of the limiting member 32. It is smoother, more accurate, and easier for subsequent vertical seals.
  • a forming surface may be disposed above the discharge forming tube 31, the forming surface including two second facing walls, a second side wall connected between the second two facing walls, and a distance between the two second facing walls Gradually decreasing from top to bottom, the second side wall is located at the end of the forming surface in the first direction to facilitate the formation of the packaging film 8.
  • the discharge forming pipe 31 may be directly connected to the feeding mechanism or may be connected to the feeding mechanism through the discharging cylinder to facilitate the conveyance of the material on the feeding mechanism to the discharge forming pipe 31.
  • the forming surface can be formed on the discharge cylinder.
  • the steering element 10 uses the following specific structure: As shown in FIGS. 5 and 9, the steering element 10 includes a first turning member 12, a diagonal turning portion 11 above the first turning member 12, and a second turning.
  • the front end surface of the oblique turning portion 11 is an obliquely disposed inclined surface 111; the film leaving position includes an inclined surface 111 for the wrapping film 8 to sequentially pass through, an outer side surface 121 of the first turning member,
  • Directional distribution, and the outer side surface of the second turning member 13 for wrapping the wrapping film 8 and the outer surface of the first turning member 12 for wrapping the wrapping film may be distributed along the width direction of the turning member 10, as for
  • the height position can be set to be the same, or can be set to be different, and preferably,
  • the second turning member 13 is provided on the outer side of the wrapping film 8 and A turning member 12 is provided for the outer side of the wrapping film to be staggered in the height direction.
  • the inclined surface 111 is gradually inclined rearward.
  • the side adjacent to the second turning member 13 and the first turning member 12 is the inner side
  • the other side is the outer side.
  • the second turning part 13 is parallel to the first turning part 12, and the second turning part 13 and the first turning part 12 all extend along the second direction Y, wherein the height direction of the steering element Z is perpendicular to the first direction X, and the second direction Y is perpendicular to the first direction X and the height direction Z of the steering element 10.
  • the oblique turning portion 11 also extends along the second direction Y, and the oblique turning portion 11, the first turning member 12, and the second turning member 13 are sequentially arranged from top to bottom. As shown in FIG.
  • the front projection of the outer side surface 121 of the first turning member on the reference surface formed by the first direction X and the second direction Y is a first projection, and the oblique surface 111 is positive on the reference surface.
  • the projection is a second projection, and the outer edge of the first projection is located on one side of the second projection.
  • the size of the obliquely folded surface 111 can be set according to the width of the strip-shaped packaging film 8.
  • the obliquely folded surface 111 may be a circular arc surface provided on the oblique turning portion 11, a curved surface of the roller shaft on the oblique turning portion 11, or other structure.
  • the first turning member 12 can be a fixed fixed shaft, a rollable rolling shaft, a flat plate, or other structures.
  • the outer surface of the first turning member 12 for wrapping the wrapping film 8 can be a flat surface, and preferably , for fixing the shaft, rolling axis, or curved surface on the plate to reduce friction.
  • the second turning member 13 can be a fixedly disposed fixed shaft, a rollable rolling shaft, a flat plate, or other structure, and the outer surface of the second turning member 13 for wrapping the wrapping film 8 can be flat, and preferably , for fixing the shaft, rolling axis, or curved surface on the plate to reduce friction.
  • each arrow indicates the direction of the packaging film 8
  • the strip-shaped packaging film 8 is from the corresponding oblique turning portion.
  • the rear of the 11 is respectively transported toward the inclined surface 111, and passes around the inclined surface 111, and the film is removed from the lower side of the oblique turning portion 11 to the outer side surface 121 of the first turning member, and then the film is removed through the lower side of the first turning member 12.
  • To the outer side surface 1 31 of the second turning piece and then transported downward.
  • the bag forming apparatus 100 includes at least two deflecting plates, each of which is sequentially arranged along the first direction X; the deflecting plates are at both sides of the X in the first direction a deflecting member 10 is formed on the steering plate, and the obliquely folded portions 11 on the two inclined turning portions 11 are symmetrically arranged and formed in a V shape;
  • the steering plate and its corresponding two steering elements 10 are combined into a steering unit 50, each steering unit 50 is arranged along the first direction, and any two adjacent steering units 50 are staggered in the height direction to avoid the phase after the slitting.
  • Two adjacent strip-shaped packaging films 8 interfere with each other; as shown in FIG.
  • two discharge forming tubes 31 corresponding to the two steering elements 10 on the steering unit 50 are arranged adjacent to the two steering elements 10 One side is such that the longitudinal openings 81 of the two wrapping films 8 of the two discharge forming tubes 31 face each other.
  • the two restricting members 32 corresponding to the two steering elements 10 on the same steering unit 50 are formed into a rectangular shape. At this time, the through-film passages 321 on the two restricting members 32 are formed.
  • the upper end portions of the discharge forming tubes 31 corresponding to the two steering elements 10 on the same steering unit 50 are connected by a discharge cylinder, and the forming surfaces of the two steering elements 10 are formed. On the discharge cylinder, the space occupied can be reduced while satisfying the conveyance of the material.
  • all of the steering units 50 are arranged in two rows that are offset from each other in the height direction.
  • the arrangement of the bag forming mechanism is not limited to the above, and may be as shown in FIGS. 10 and 11 (wherein the direction of the arrow in FIG. 11 indicates the direction of the single wrapping film 8), and each of the steering elements 10 is along the first One direction X is arranged in order, and the adjacent two steering elements 10 are offset from each other in the height direction to avoid interference of the adjacent two strip-shaped packaging films 8 after slitting, and the opening of each longitudinally folded packaging film 8 is The orientation toward the same side (i.e., the opening of each of the longitudinally folded packaging films 8 is directed to the left side, or the opening of each longitudinally folded packaging film 8 is directed to the right side).
  • all of the steering elements 10 are arranged in two rows that are offset from each other in the height direction.
  • the new bag forming apparatus 100 further includes a path adjusting mechanism 40.
  • the packaging film 8 passes through the path adjusting mechanism 40 and then passes through the bag forming mechanism.
  • the path adjusting mechanism 40 includes a mounting bracket and is installed in the mounting.
  • a fixed guide film shaft 41 on the bracket is attached to the movable guide film shaft 42 on the mounting bracket in an adjustable position; the fixed guide film shaft 41 extends in the first direction X. Since the above-described steering member 10 is provided with a dislocation structure, each of the packaging films 8 can be selectively wound around the fixed guide film shaft 41, or the fixed guide film shaft 41 and the movable guide film shaft 42, so that the respective packaging films 8 can be obtained.
  • the path length is compensated.
  • the packaging film 8 has the same sealing and cutting pattern
  • the packaging film 8, 8a is separated by the fixed guiding film shaft 41, and the packaging film 8 is directly wound onto the steering unit 50 of the upper row, and the packaging film 8a passes through
  • the movable guide film shaft 42 is then wound to the following turn To the unit 50, by adjusting the position of the movable guide film shaft 42, the lengths of the packaging films 8, 8a on the bag forming mechanism from the path adjusting mechanism 40 to the discharge forming tube 31 are made the same, so that the packaging film 8 is made.
  • the sealing and cutting position is consistent.
  • the number of the movable guide film shafts 42 can be set according to the arrangement of the movable guide film shafts 42, and when all the steering units 50 are arranged in two rows which are mutually displaced in the height direction (or all the steering elements 10 are arranged in line).
  • the two rows which are offset from each other in the height direction can limit the number of the movable guide film shafts 42 to at least one, which can effectively reduce the cost.
  • the mounting bracket is provided with a long slot, and the movable guiding film shaft 42 can be locked at different positions of the long slot by screws, so that the movable guiding film shaft 42 is mounted on the mounting bracket in a position to adjust the position.
  • the long groove may extend in a height direction, a horizontal direction, an oblique direction, or the like, so that the movable guide film shaft 42 can be in a height direction, a horizontal direction, an oblique direction, and the like.
  • the movable guide film shaft 42 can also be mounted on the long groove of the mounting bracket by other means such as carding.
  • each of the packaging films 8 is fed from the rear of each of the steering members 10 toward the steering member 10, and is folded in half by each of the folded members.
  • the working process of each bag forming mechanism is the same.
  • the working process of one of the bag forming mechanisms is exemplified: Before working, one end of the packaging film 8 is sequentially wound around the path adjusting mechanism 40, the turning element 10, and the folding element.
  • the rear wrapping film 8 When the packaging film 8 is continuously advanced, the rear wrapping film 8 first enters the path adjusting mechanism 40, then is turned by the turning member 10, and finally folded longitudinally by the folding element.
  • the bag forming device 100 can be applied to various packaging machines, and is mainly applied to a vertical multi-row three-side sealing packaging machine.
  • a vertical multi-row four-side packaging machine in this case, in the four-side packaging process, it is necessary to have two longitudinal ends of the longitudinally folded package (the longitudinal end of the longitudinal opening 81 on one side, the other The side closed longitudinal end) is packaged).
  • the packaging machine of the present invention includes a film supply mechanism 200, a slitting mechanism 300, a feeding mechanism, a bag pulling mechanism 400, a longitudinal sealing mechanism 500, a transverse sealing mechanism 600, a cutting mechanism 700, and further includes the above-mentioned
  • the new bag forming device 100 wherein the film feeding mechanism 200, the slitting mechanism 300, the bag forming device 100, the bagging mechanism 400, the longitudinal sealing mechanism 500, the transverse sealing mechanism 600, and the cutting mechanism 700 are transported along the packaging film 8.
  • the directions are sequentially disposed; the feeding mechanism is for conveying the material to the discharge forming tube 31 of the bag forming apparatus 100. among them,
  • the slitting mechanism 300 is used for slitting the packaging film 8 provided by the film feeding mechanism 200 into a strip packaging film 8;
  • each of the strip-shaped packaging films 8 after cutting is respectively inserted into each bag forming mechanism, and guided by the bag forming mechanism and folded longitudinally;
  • the bagging mechanism 400 the longitudinally folded packaging film is driven to move downward by the bagging mechanism 400;
  • a longitudinal sealing mechanism 500 configured to longitudinally seal the folded packaging film 8
  • a transverse sealing mechanism 600 for transversely sealing the packaging film 8; and in the process of forming a packaging bag, longitudinally slitting the side of the packaging film 8 by the vertical sealing mechanism 500, and transversely sealing by the transverse sealing mechanism 600, To form a container cavity, and the material of the feeding mechanism is filled into the container cavity through the discharge forming tube 31, the packaging film 8 is moved, and then transversely sealed by the transverse sealing mechanism 600 to form a closed packaging bag;
  • the bag pulling mechanism 400 can use a continuous pulling bag or an intermittent bag pulling mechanism according to actual needs;
  • the mechanism 400 is operated in a manner that matches the vertical sealing mechanism 500 and the transverse sealing mechanism 600 in a continuous or intermittent manner.
  • the bag pulling mechanism 400 is a continuous bag pulling mechanism, which comprises two mutually parallel rotating shafts 93, at least two rotating wheel assemblies corresponding to the respective bag forming mechanisms, and driving.
  • a mechanism the axial direction of the rotating shaft 93 is the same as the first direction X;
  • the rotating wheel assembly includes two pulling bag wheels 91, and a compensation wheel 92 contacting one of the bagging wheels 91;
  • the driving mechanism is used for The driving compensation wheel 92 and the rotating shaft 93 rotate;
  • the two pulling bag wheels 91 on the same rotating wheel assembly respectively correspond to the two rotating shafts, and are mounted on the corresponding rotating shaft through the one-way bearing 94; after the packaging film 8 is folded in half Passing between the two bag wheels 91 of the corresponding runner assembly, since the packaging film is sandwiched between the two bag wheels 91, the packaging film 8 can be driven by the rotation of the two bag wheels 91.
  • the rotating shaft 93 rotates in the A direction
  • the pulling roller 91 rotates in the B direction by the one-way bearing 94, thereby driving the packaging film 8 to move in the D direction
  • the driving mechanism drives the compensation wheel 92 to rotate, so that the compensation wheel 92 is Rotating at a linear speed greater than the rotation shaft 93 (that is, the bag wheel 91) to make the compensation wheel 92 pairs of the bag wheel 91 generate friction force.
  • the friction force of the compensation wheel 92 against the bag wheel 91 is greater than the tension of the packaging film 8, the rotation speed of the bag wheel 91 is increased, but the pulling bag can be avoided due to the action of the one-way bearing 94.
  • the wheel 91 has an influence on the rotation speed of the rotating shaft 93.
  • the frictional force of the compensation wheel 92 against the bag wheel 91 is smaller than the tension of the packaging film 8, the compensation wheel 92 and the bag wheel 91 slide, and the bag wheel 91 maintains its own speed. Therefore, during use, when the plurality of packaging films 8 are moved down by the driving of the respective reel assemblies, if the individual packaging films 8 are loose, the tension of the packaging film 8 is small, corresponding to the packaging film 8.
  • the rotation speed of the bag wheel 91 is greater than the rotation speed of the other bag wheels 91, and the packaging film 8 is accelerated forward.
  • the tension of the packaging film 8 increases, and the friction force of the compensation wheel 92 against the bag wheel 91 is smaller than the tension of the packaging film 8, the compensation wheel 92 slides relative to the bag wheel 91 to stop compensation.
  • the friction between the compensating wheel 92 and the bag wheel 91 can be adjusted to achieve the best effect by adjusting the pressure of the compensating wheel 92 against the bag wheel 91.

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Abstract

一种袋成形装置及包装机，该袋成形装置包括至少两个袋成形机构，袋成形机构包括转向元件（10）和对折元件；各个对折元件的出料成形管（31）沿着第一方向依次排列；转向元件（10），包装膜（8）在绕经转向元件（10）时，沿着一走膜路线进行输送；所述转向元件（10）上设置有位于走膜路线上并用于供包装膜（8）绕过使包装膜（8）转向的走膜位。通过合理调节包装膜（8）的走向和纵向对折的包装膜（8）的纵向开口方向，当其运用于多列三边封包装机时，可通过拉袋机构、横封机构、纵封机构、切断机构的合理配合，能够在没有配备各种同步控制装置的情况下，使各包装膜（8）实现同时拉袋、纵封合、横封合、切断，可解决多列三边封包装机结构较为复杂、制作成本较高的问题。

Description

新型袋成形装置及包装机 技术领域
本发明涉及包装设备领域， 具体涉及一种新型袋成形装置及包装机。
背景技术
如图 1、 2所示， 包装的封装方式一般分为三边封（如图 1、 2的 A )、 四边封（如图 1、 2的 B )、 背封（如图 1、 2的 C)。 其中， 多列三边封包装机具备有自动化程度高、 效率高等优 点， 而备受人们的青睐。 现有的三边封多列包装机一般包括供膜机构、 分切机构、 送料机构、 袋成形机构、 拉袋机构、 纵封机构、 横封机构、 切断机构， 而袋成形机构作为包装机的重要 组成部分， 直接影响包装机的功能及使用性能。
申请号为 96197906. 2的专利文献公开了一种带有成形管的包装机器， 其中， 一卷可变 形的材料围绕着该成形管缠绕， 以便形成一个连续的套筒， 通过纵向密封， 接着横向密封， 得到被填充了并被密封了的包装物， 它装有一个成形装置， 该装置在所述套筒上沿着在后来 的两个横向上的接缝之间的部分产生一个角撑件， 该角撑件可以构成该包装物的底部结构， 当把该包装物旋转并放在水平的地面上时， 它将有以竖直状态稳定站立所必须的基件。 由于 包装膜直接从成形管的后方输入至成形管上， 当该包装机器釆用多列三边封包装方式（也就 是釆用沿着第一方向依次排列的多个成形管） 时， 一张包装膜经包装机器的分切机构同时分 切为多条条状包装膜后， 该多条包装膜分别从成形管的后方输入至输送至各成形管上， 并经 过该成形管， 纵向对折； 此时， 如图 3所示， 纵向对折的包装膜的纵向开口朝向于与第一方 向垂直的第二方向（也就是朝向于成形管的前方）， 而受包装膜的对折方向和纵向开口方向限 制， 每条包装膜均需釆用独立的拉袋机构、 纵封机构、 横封机构、 切断机构来进行拉袋、 纵 封、 横封、 切断， 从而使多列三边封包装机上的多条包装膜难以同时实现拉袋、 纵封、 横封、 切断。 而由于每个独立的拉袋机构均包括两个转轴、 位于转轴上的拉袋轮， 为了使多列三边 封包装机上的多条包装膜能够同时实现拉带， 必需在所有拉袋机构的转轴上连接有同步控制 装置， 以使各个转轴同步动作， 驱动各对拉袋轮同步转动， 从而促使包装机上的多条包装膜 能够同时实现拉袋。 而同理的， 为了实现多条包装膜的纵封、 横封、 切断， 也需要配备相应 的同步控制装置， 但如此一来， 造成包装机的结构较为复杂、 制作成本较高。
发明内容
为了克服现有技术的不足， 本发明的目的之一在于提供一种新型袋成形装置， 其可解决 为了满足各包装膜能够同时拉袋、 纵封、 横封、 切断， 而造成多列三边封包装机结构较为复 杂、 制作成本较高的问题。
本发明的目的之二在于提供一种包装机。
为解决上述问题的一， 本发明所釆用的技术方案如下：
新型袋成形装置， 包括至少两个袋成形机构， 各个袋成形机构分别对应地供各条状包装 膜经过； 所述袋成形机构均包括转向元件和对折元件； 所述对折元件包括出料成形管， 各个 袋成形机构的出料成形管沿着第一方向依次排列；
位于同一袋成形机构内的转向元件、 对折元件， 及位于该对折元件内的出料成形管； 其 中，
该转向元件， 从转向元件的后方向着转向元件前端输入的包装膜， 在绕经转向元件时， 沿着一条从转向元件的前端转向至转向元件的一侧端再传输至转向元件上靠近该出料成形管 的另一侧端再向下传输的走膜路线进行输送； 其中， 所述两侧端为转向元件的左右两侧端， 并沿着转向元件的宽度方向分布， 所述转向元件的宽度方向与第一方向一致； 所述转向元件 上设置有位于走膜路线上并用于供包装膜绕过使包装膜转向的走膜位；
该对折元件， 向下传输的包装膜在经过对折元件时， 该包装膜纵向对折； 经过纵向对折 的包装膜的纵向开口均朝向于第一方向； 其中， 向下传输的包装膜在经过出料成形管时沿着 出料成形管的轴向传输。
所述转向元件包括第一转折件、 位于第一转折件上方的斜转折部、 第二转折件； 斜转折 部的前端面为一呈倾斜设置的斜折面； 所述走膜位包括供包装膜依次绕经的斜折面、 第一转 折件的外侧面、 第二转折件的外侧面； 所述第二转折件上供包装膜绕经的外侧面和第一转折 件上供包装膜绕经的外侧面沿着转向元件的宽度方向分布； 从斜折面上靠近第一转折件外侧 面的一侧端至靠近第二转折件外侧面的另一侧端， 所述斜折面逐渐向后倾斜。
第一转折件的外侧面在第一方向与第二方向形成的参考面上的正投影为第一投影， 斜折 面在该参考面上的正投影为第二投影， 所述第一投影的外侧边缘位于第二投影的一侧； 其中， 转向元件的高度方向与第一方向垂直， 第二方向与第一方向、 转向元件的高度方向垂直。
所述第二转折件、 第一转折件均沿着第二方向延伸， 其中， 转向元件的高度方向与第一 方向垂直， 第二方向与第一方向、 转向元件的高度方向垂直； 所述斜转折部、 第一转折件、 第二转折件自上至下依次排布。
袋成形装置包括至少两个转向板， 各个转向板沿着第一方向排列； 转向板在第一方向上 的两侧端处均布设有转向元件， 该两个转向元件上的斜转折部均成型在该转向板上， 转向板 上的两个斜折面呈对称排布； 所述转向板和其对应的两个转向元件组合成一转向单元， 各转 向单元沿着第一方向排列， 任意相邻的两个转向单元沿高度方向错开； 同一转向单元上的两 个转向元件所对应的出料成形管均排布在该两个转向元件上相邻的一侧。
各个转向元件沿着第一方向依次排列， 而相邻的两转向元件沿高度方向相互错开。
新型袋成形装置还包括路径调整机构， 所述包装膜先经过路径调整机构， 然后再经过袋 成形机构； 所述路径调整机构包括安装支架、 安装在安装支架上的固定导膜轴、 以可调节位 置的方式安装在安装支架上的活动导膜轴； 所述固定导膜轴沿第一方向延伸。
该对折元件还包括限制部件； 所述限制部件上形成有穿膜通道， 所述穿膜通道包括供出 料成形管穿过的弧槽部、 与弧槽部连通并呈条形状的限位部； 所述限位部沿着第一方向延伸。
为解决上述问题的二， 本发明所釆用的技术方案如下：
包装机， 包括供膜机构， 分切机构， 送料机构、 拉袋机构， 纵封机构， 横封机构， 切断 机构， 还包括上述的新型袋成形装置； 所述供膜机构、 分切机构、 袋成形装置、 拉袋机构、 纵封机构、 横封机构、 切断机构沿着包装膜的输送方向依次设置； 送料机构用于向着袋成形 装置的出料成形管输送物料。
所述拉袋机构包括两个相互平行的转轴、 与各个袋成形机构——对应的至少两个转轮组 件、 驱动机构， 所述转轴的轴向与第一方向一致； 所述转轮组件均包括两个拉袋轮、 与其中 一个拉袋轮接触的补偿轮； 所述驱动机构用于驱动补偿轮和转轴转动； 同一转轮组件上的两 个拉袋轮分别与两个转轴——对应， 并通过单向轴承安装在与其对应的转轴上； 包装膜经对 折后， 从对应的转轮组件的两个拉袋轮之间经过， 并经由该两拉袋轮的转动而驱动包装膜下 移。
相比现有技术， 本发明的有益效果在于：
本发明通过合理调节包装膜的走向和纵向对折的包装膜的纵向开口方向， 当其运用于多 列三边封包装机时， 可通过拉袋机构、 横封机构、 纵封机构、 切断机构的合理配合， 能够在 没有配备各种同步控制装置的情况下， 使各包装膜实现同时拉袋、 纵封合、 横封合、 切断， 因而， 可解决为了满足各包装膜能够同时拉袋、 纵封、 横封、 切断， 而必需釆用同步控制装 置以造成多列三边封包装机结构较为复杂、 制作成本较高的问题。
附图说明
图 1为现有的各种包装袋的封装方式的比较图， 其中， A示出三边封的封装方式， B示出 四边封的封装方式， C示出背封的封装方式；
图 2为图 1的俯视图； 图 3为申请号为 96197906. 2的专利文献中的包装机器上的包装膜的纵向开口的示意图； 图 4为本发明的新型袋成形装置的结构示意图；
图 5为图 4中的袋成形机构的结构示意图；
图 6示出各包装膜在袋成形装置的走向示意图；
图 7为图 6中的包装膜在袋成形机构的走向示意图；
图 8示出纵向对折的包装膜的纵向开口的示意图；
图 9为各转向组件在参考面的投影视图；
图 10为本发明的另一种新型袋成形装置的结构示意图；
图 11为图 10中的袋成形机构的结构示意图；
图 12为本发明的新型袋成形装置中的调长机构的结构示意图；
图 1 3为本发明的包装机的结构示意图；
图 14为包装机中的拉袋机构中的补偿机构的结构示意图；
其中， 8、 包装膜； 81、 纵向开口； 10、 转向元件； 11、 斜转折部； 11 1、 斜折面； 12、 第一转折件； 121、 第一转折件的外侧面； 1 3、 第二转折件； 1 31、 第二转折件的外侧面； 31、 出料成形管； 32、 限制部件； 321、 穿膜通道； 40、 路径调整机构； 41、 固定导膜轴； 42、 活 动导膜轴； 50、 转向单元； 91、 拉袋轮； 92、 补偿轮； 93、 转轴； 94、 单向轴承； 100、 袋成 形装置； 200、 供膜机构； 300、 分切机构； 400、 拉袋机构； 500、 纵封机构； 600、 横封机构； 700、 切断机构。
具体实施方式
下面， 结合附图以及具体实施方式， 对本发明做进一步描述， 以便于更清楚的理解本发 明所要求保护的技术思路。
如图 4-9所示， 为本发明一种新型袋成形装置， 包括至少两个袋成形机构， 由于单个袋成 形机构供单条包装膜经过， 因此， 各个袋成形机构分别对应地供包装机上的各条状包装膜 8 经过。各个袋成形机构均包括供各自对应的包装膜 8依次经过的转向元件 10和对折元件； 所述 对折元件包括出料成形管 31 , 如图 6、 7、 8、 9所示， 各个袋成形机构的出料成形管 31沿着第 一方向 X依次排列， 现以其中一个袋成形机构进行详细描述：
如图 5、 6所示， 位于同一袋成形机构内的转向元件 10、 对折元件， 及位于该对折元件内 的出料成形管 31 ; 其中，
该转向元件 10 ,从转向元件 10的后方向着转向元件 10前端输入的包装膜 8 ,在绕经转向元 件 10时， 沿着一条从〈转向元件 10的前端〉转向至〈转向元件 10的一侧端〉再传输至〈转向 元件 10上靠近该出料成形管 31的另一侧端〉再〈向下传输〉 的走膜路线进行输送； 所述两侧 端为转向元件 10的左右两侧端， 并沿着转向元件 10的宽度方向分布， 所述转向元件 10的宽度 方向与第一方向 X—致； 其中， 转向元件 10的两侧端只要沿着转向元件的宽度方向分布即可， 至于该两侧端的高度位置可以设置为相同， 也可以设置为不同， 而优选的， 该两侧端部沿高 度方向错开。 该两侧端的形状可依实际需求设置为相同或者不同。 所述转向元件 10上设置有 位于走膜路线上并用于供包装膜 8绕过使包装膜 8转向的走膜位。
该对折元件， 向下传输的包装膜 8在经过对折元件时， 该包装膜 8纵向对折呈 U形； 经过纵 向对折的包装膜 8的纵向开口 81均朝向于第一方向 X； 其中， 向下传输的包装膜 8在经过出料成 形管 31时沿着出料成形管 31的轴向传输。
如图 6、 7所示， 当新型袋成形装置 100应用于多列三边封包装机时， 在包装机的正常使用 过程中， 单张包装膜 8经分切机构 300分切成条状包装膜 8 , 而在工作前， 先将各条状包装膜 8 的一端从转向元件 10的后方沿着走膜路线绕经对应的转向元件 10 , 并纵向对折在对应的对折 元件上； 而在各包装膜 8的不断传输过程中， 各条包装膜 8的输入部分均从转向元件 10的后方 向着对应的转向元件 10输入， 然后沿着走膜路线绕经转向元件 10 ,再向下传输经过对折元件， 形成纵向对折， 而经过对折元件的包装膜 8的纵向开口 81均朝向于第一方向 X。 本发明通过合理调节包装膜 8的走向， 使纵向对折的包装膜 8的纵向开口 81均朝向于第一 方向 X , 当新型袋成形装置 100应用于多列三边封包装机时， 包装机上的拉袋机构 400的两转轴 可随着包装膜 8的纵向开口 81方向而横向摆放， 也就是， 转轴的延伸方向与第一方向 X—致， 因而， 与各袋成形机构对应的各对拉袋轮 91能共用该两转轴， 可随着该两转轴的转动， 而使 转轴上的多对转轮同时转动， 从而使各条包装膜 8能同时实现拉袋； 而同理的， 纵封机构 500 的两纵封承载体随着包装膜 8的纵向开口 81方向而横向摆放，与各袋成形机构对应的各对纵封 加热体能共用该两纵封承载体， 可随着纵封承载体的转动， 使纵封承载体上的多对纵封加热 体对各条包装膜 8同时进行纵封动作； 同理的，横封机构 600的两横封承载体随着包装膜 8的纵 向开口 81方向而横向摆放， 因而， 与各袋成形机构对应的各对横封加热体能共用该两横封承 载体， 可随着横封承载体的转动， 可使横封承载体上的多对横封加热体对各条包装膜 8同时进 行横封动作； 而同理的， 切断机构 700的两切刀载体随着包装膜 8纵向开口 81方向而横向摆放， 因而， 与各袋成形机构对应的各对切刀能共用该两切刀载体， 可随着两切刀载体的转动， 而 使切刀载体上的多对切刀对各条包装膜 8同时进行切断动作。 因此， 当本发明应用于多列三边 封包装机时， 通过该拉袋机构 400、 横封机构 600、 纵封机构 500、 切断机构 700的动作， 可使 三边封包装机上的各列包装膜 8同时拉袋、 纵封合、 横封合、 切断， 而无需配备各种同步控制 装置， 能有效解决多列包装机结构较为复杂， 制作成本较高的问题。 由于拉袋机构 400、 横封 机构 600、 纵封机构 500、 切断机构 700的结构作为本行业内的公知常识， 因而， 上文并未对拉 袋机构 400、横封机构 600、 纵封机构 500的结构进行详细说明， 而是重点描述本发明通过调节 包装膜 8的纵向开口 81 , 可利用拉袋机构 400、 横封机构 600、 纵封机构 500、 切断机构 700的合 理配合， 能够在没有配备各种同步控制装置的情况下， 使各包装膜 8同时拉袋、 纵封合、 横封 合、 切断。
其中， 所述出料成形管 31的形状可依据实际需求而设定， 例如可设置为中空圆柱状， 或 者扁形状， 当然， 该出料成形管 31还可以设置为其他形状， 例如， 包括两第一面壁； 所述两 第一面壁的相对端部之间均通过第一侧壁连接； 所述两第一面壁的距离自上至下逐渐减小， 所述两第一侧壁位于出料成形管 31在第一方向的两端上， 以利于包装膜 8的成形。 当包装膜 8 经过出料成形管 31时， 该包装膜 8围绕在出料成形管 31的外表面， 形成纵向对折。 而优选的， 该对折元件还包括限制部件 32； 所述限制部件 32上形成有穿膜通道 321 , 所述穿膜通道 321包 括供出料成形管 31穿过的弧槽部、与弧槽部连通并呈条形状的限位部，所述限位部沿着第一方 向 X延伸。 在使用过程中， 先将包装膜 8的端部纵向对折放置在穿膜通道 321内， 而此时， 包装 膜 8的中间部分围绕在出料成形管 31外表面， 且包装膜 8的两侧位于限位部内； 而随着包装膜 8 的不断输送， 经过限制部件 32的包装膜 8均被纵向对折呈 U形， 因此， 通过釆用限制部件 32的 设计， 可使包装膜 8的纵向对折更为流畅、 准确， 并便于后续的纵封。 优选的， 还可以在出料 成形管 31的上方设置有成形面， 所述成形面包括两第二面壁、 连接在第二两面壁之间的第二 侧壁， 所述两第二面壁的距离自上至下逐渐减小， 所述第二侧壁位于成形面在第一方向的端 部上， 以利于包装膜 8的成形。 而为了便于输送物料， 所述出料成形管 31可直接连接至送料机 构上， 也可以通过出料筒连接至送料机构上， 以便于送料机构上的物料输送至出料成形管 31 上。 而所述成形面可成型在出料筒上。
为了使包装膜 8可沿着一从转向元件 10的前端转向至转向元件 10的一侧端再传输至转向 元件 10靠近该出料成形管 31的另一侧端再向下传输的走膜路线进行输送， 所述转向元件 10釆 用以下具体结构： 如图 5、 9所示， 所述转向元件 10包括第一转折件 12、 位于第一转折件 12上 方的斜转折部 11、 第二转折件 1 3; 斜转折部 11的前端面为一呈倾斜设置的斜折面 111 ; 所述走 膜位包括供包装膜 8依次绕经的斜折面 111、 第一转折件的外侧面 121、 第二转折件的外侧面 1 31 ; 所述第二转折件 1 3上供包装膜 8绕经的外侧面和第一转折件 12上供包装膜绕经的外侧面 沿着转向元件 10的宽度方向分布，而所述第二转折件 1 3上供包装膜 8绕经的外侧面和第一转折 件 12供包装膜绕经的外侧面只要沿着转向元件 10的宽度方向分布即可， 至于高度位置可以设 置为相同， 也可以设置为不同， 而优选的， 所述第二转折件 1 3上供包装膜 8绕经的外侧面和第 一转折件 12供包装膜绕经的外侧面沿高度方向错开。 如图 5所示， 从斜折面 111上靠近第一转 折件 12外侧面的一侧端至靠近第二转折件 1 3外侧面的另一侧端， 所述斜折面 111逐渐向后倾 斜。 而根据公知常识， 所述第二转折件 1 3和第一转折件 12相邻的一侧为内侧， 而另一侧则为 外侧。
优选的， 所述第二转折件 1 3与第一转折件 12平行， 且所述第二转折件 1 3、 第一转折件 12 均沿着第二方向 Y延伸， 其中， 转向元件的高度方向 Z与第一方向 X垂直， 第二方向 Y与第一方 向 X、 转向元件 10的高度方向 Z垂直。 优选的， 斜转折部 11也沿着第二方向 Y延伸， 所述斜转折 部 11、 第一转折件 12、 第二转折件 1 3自上至下依次排布。 如图 9所示， 所述第一转折件的外侧 面 121在第一方向 X与第二方向 Y形成的参考面上的正投影为第一投影， 斜折面 111在该参考面 上的正投影为第二投影， 所述第一投影的外侧边缘位于第二投影的一侧。 其中， 斜折面 111 的尺寸可依据条状包装膜 8的宽度而设定。
为了减少摩擦力， 所述斜折面 111可为设置在斜转折部 11上的圆弧面，斜转折部 11上的滚 轴的弧面， 或者其他结构。 所述第一转折件 12可为固定设置的固定轴、 可滚动的滚动轴、 平 板，或其他结构， 则第一转折件 12上供包装膜 8绕经的外侧面可为平面， 而优选的， 为固定轴、 滚动轴、 或者平板上的弧面， 以减少摩擦力。 第二转折件 1 3可为固定设置的固定轴、 可滚动 的滚动轴、 平板， 或其他结构， 则第二转折件 1 3上供包装膜 8绕经的外侧面可为平面， 而优选 的， 为固定轴、 滚动轴、 或者平板上的弧面， 以减少摩擦力。
如图 7所示（各箭头示意出包装膜 8的走向）， 在使用过程中， 单张包装膜 8经分切为条状 包装膜 8后，各条状包装膜 8从对应的斜转折部 11的后方分别向着斜折面 111传输， 并绕经斜折 面 111 , 从斜转折部 11的下方走膜至第一转折件的外侧面 121 , 然后再经第一转折件 12的下方 走膜至第二转折件的外侧面 1 31 , 再沿向下传输。
如图 4、 5、 8、 9所示， 袋成形装置 100包括至少两个转向板， 各个转向板沿着第一方向 X 依次排布； 转向板在第一方向上 X的两侧端处均布设有转向元件 10 , 该两个转向元件 10上的斜 转折部 11成型在该转向板上， 该两个斜转折部 11上的斜折面 111呈对称排布， 并形成 V字形； 所述转向板和其对应的两个转向元件 10组合成一转向单元 50 , 各转向单元 50沿着第一方向排 列， 任意相邻的两个转向单元 50沿高度方向错开， 以避免经分切后的相邻两个条状包装膜 8 发生干涉； 如图 8所示， 转向单元 50上的两个转向元件 10所对应的两个出料成形管 31均排布在 该两个转向元件 10上相邻的一侧， 以使该两个出料成形管 31的两包装膜 8的纵向开口 81相向。 为了便于加工， 减小加工成本， 同一转向单元 50上的两个转向元件 10所对应的两个限制部件 32—体成形呈矩形状， 此时， 该两个限制部件 32上的穿膜通道 321呈对称排布， 而同一转向单 元 50上的两个转向元件 10对应的出料成形管 31的上端部通过一出料筒连通在一起， 且该两个 转向元件 10所对应的成形面均成型在该出料筒上， 在满足输送物料的情况下， 可减少占用的 空间。 而优选的， 所有的转向单元 50排成沿高度方向相互错开的两列。
当然， 所述袋成形机构的排列方式并不仅限于上述方式， 还可如图 10、 11所示 （其中， 图 11的箭头方向示意出单条包装膜 8的走向） ， 各个转向元件 10沿着第一方向 X依次排布， 而 相邻的两转向元件 10沿高度方向相互错开， 以避免经分切后的相邻两个条状包装膜 8发生干 涉， 各个纵向对折的包装膜 8的开口则朝向于同一侧 （也就是， 各个纵向对折的包装膜 8的开 口则朝向于左侧， 或者各个纵向对折的包装膜 8的开口则朝向于右侧）。 而优选的， 所有的转 向元件 10排成沿高度方向相互错开的两列。
如图 12所示， 新型袋成形装置 100还包括路径调整机构 40 , 所述包装膜 8先经过路径调整 机构 40 , 然后再经过袋成形机构； 所述路径调整机构 40包括安装支架、 安装在安装支架上的 固定导膜轴 41、 以可调节位置的方式安装在安装支架上的活动导膜轴 42 ; 所述固定导膜轴 41 沿第一方向 X延伸。 由于上述转向元件 10釆用错位结构， 通过将各包装膜 8可选择地绕经在固 定导膜轴 41上， 或为固定导膜轴 41和活动导膜轴 42上， 可使各包装膜 8的路径长度得以弥补。 现举例进行说明： 当包装膜 8有印刷需要封切图案一致时， 包装膜 8、 8a经固定导膜轴 41后分 开路线， 包装膜 8直接绕到上列的转向单元 50上， 包装膜 8a经过活动导膜轴 42再绕到下列的转 向单元 50上， 而通过调节活动导膜轴 42的位置， 可使袋成形机构上的包装膜 8、 8a从路径调整 机构 40至出料成形管 31时的长度均相同， 以使包装膜 8的封切位置保持一致。 其中， 活动导膜 轴 42的数量可依据活动导膜轴 42的排布而设定， 而当所有的转向单元 50排成沿高度方向相互 错开的两列 （或者为所有的转向元件 10排成沿高度方向相互错开的两列） ， 则可将活动导膜 轴 42的数量限定为至少一个， 能有效降低成本。
其中， 所述安装支架上设置有长槽， 而活动导膜轴 42可通过螺丝锁紧在长槽的不同位置 上， 从而实现活动导膜轴 42以调节位置的方式安装在安装支架上。 其中， 所述长槽可沿高度 方向、 水平方向、 倾斜方向等延伸， 以使活动导膜轴 42可沿高度方向、 水平方向、 倾斜方向 等节位置。 当然， 为了满足上述安装要求， 所述活动导膜轴 42还可以通过卡装等其他方式安 装在安装支架的长槽上。
在工作过程中，各条包装膜 8均从各个转向元件 10的后方向着转向元件 10输入， 并经各出 对折元件对折成形。 而各个袋成形机构的工作过程均相同， 现以其中一个袋成形机构的工作 过程进行举例说明： 在工作前， 先将包装膜 8的一端依次绕经路径调整机构 40、 转向元件 10、 对折元件， 而当包装膜 8不断前进时， 牵引后方的包装膜 8先进入至路径调整机构 40, 然后经 转向元件 10转向， 最后经对折元件纵向对折。
其中，所述袋成形装置 100可应用于各种包装机上，主要应用于立式多列三边封包装机上。 当然， 也适用于立式多列四边封包装机上（此时， 在四边封装过程中， 需对已纵向对折的包 装袋的两纵向端部 （一侧有纵向开口 81的纵向端部， 另一侧闭合的纵向端部）进行封装） 。
如图 13所示， 本发明的包装机， 包括供膜机构 200, 分切机构 300, 送料机构、 拉袋机构 400, 纵封机构 500, 横封机构 600, 切断机构 700, 还进一步包括上述的新型袋成形装置 100, 其中， 所述供膜机构 200、 分切机构 300、 袋成形装置 100、 拉袋机构 400、 纵封机构 500、 横封 机构 600、 切断机构 700沿着包装膜 8的输送方向依次设置； 送料机构用于向着袋成形装置 100 的出料成形管 31输送物料。 其中，
供膜机构 200, 用于将卷状包装膜 8进行放卷；
分切机构 300, 用于将供膜机构 200提供过来的包装膜 8进行分切为条状包装膜 8;
袋成形装置 100, 分切后的各个条状包装膜 8分别进入各个袋成形机构上， 并经袋成形机 构导向、 纵向对折；
拉袋机构 400, 经纵向对折后的包装膜经拉袋机构 400驱动其下移；
纵封机构 500, 用于对对折后的包装膜 8进行纵封；
横封机构 600, 用于对包装膜 8进行横封； 而在形成一个包装袋的过程中， 利用纵封机构 500对包装膜 8的侧边进行纵缝， 并利用横封机构 600横封， 以形成一容料腔， 而送料机构的物 料经出料成形管 31填充至容料腔内后， 包装膜 8移动， 再利用横封机构 600进行横封， 形成一 闭合的包装袋；
切断机构 700, 用于将封合好的包装袋切断。
其中， 由于袋成形装置 100可以配合连续式拉袋机构或间歇式拉袋机构使用， 因此， 拉袋 机构 400可依据实际需求， 釆用连续式拉袋或间歇式拉袋机构； 而与拉袋机构 400的动作方式 相匹配， 纵封机构 500、 横封机构 600也跟随拉袋机构 400釆用连续式或间歇式的工作方式。
优选的， 如图 14所示， 所述拉袋机构 400为一连续式拉袋机构， 其包括两个相互平行的 转轴 93、 与各个袋成形机构——对应的至少两个转轮组件、 驱动机构， 所述转轴 93的轴向 与第一方向 X—致； 所述转轮组件均包括两个拉袋轮 91、 与其中一个拉袋轮 91接触的补偿 轮 92; 所述驱动机构用于驱动补偿轮 92和转轴 93转动； 同一转轮组件上的两个拉袋轮 91 分别与两个转轴——对应，并通过单向轴承 94安装在与其对应的转轴上；包装膜 8经对折后， 从对应的转轮组件的两个拉袋轮 91之间经过， 由于所述包装膜夹设在两个拉袋轮 91之间， 可经由该两拉袋轮 91的转动而驱动包装膜 8下移。 在使用过程中， 转轴 93沿 A向转动， 通 过单向轴承 94带动拉袋轮 91沿 B向转动， 从而驱动包装膜 8沿 D向移动， 驱动机构驱动补 偿轮 92转动， 使补偿轮 92以大于转轴 93 (也就是拉袋轮 91 ) 的线速度转动， 以使补偿轮 92对拉袋轮 91产生摩擦力， 当补偿轮 92对拉袋轮 91摩擦力大于包装膜 8的张力时， 拉袋 轮 91转速加快，但由于单向轴承 94的作用， 可避免该拉袋轮 91对转轴 93的转速产生影响； 当补偿轮 92对拉袋轮 91摩擦力小于包装膜 8的张力时， 补偿轮 92与拉袋轮 91之间滑动， 拉袋轮 91保持本身速度。 因此， 在使用过程中， 当多条包装膜 8在各转轮组件的驱动下下移 时， 若有个别包装膜 8较松， 则该包装膜 8的张力较小， 与该包装膜 8对应的拉袋轮 91的转 速大于其他拉袋轮 91的转速， 包装膜 8加速前移。 当该包装膜 8达到张紧状态并与其他包装 膜 8同步前移时， 该包装膜 8的张力增大， 补偿轮 92对拉袋轮 91的摩擦力小于该包装膜 8 的张力， 补偿轮 92相对于拉袋轮 91滑动， 停止补偿。 而优选的， 补偿轮 92与拉袋轮 91之 间的摩擦力大小可以通过调整补偿轮 92对拉袋轮 91的压力， 从而达到最佳效果。 该拉袋机 构通过釆用补偿轮 92的设计， 可使各包装膜 8同步下移，避免出现各包装膜 8松紧不一而相 互绞缠一起导致无法正常成形制袋的现象。
上述实施方式仅为本发明的优选实施方式， 不能以此来限定本发明保护的范围， 本领域 的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的 范围。

Claims

1.新型袋成形装置， 包括至少两个袋成形机构， 各个袋成形机构分别对应地供各条状包 装膜经过； 其特征在于： 所述袋成形机构均包括转向元件和对折元件； 所述对折元件包括出 料成形管， 各个袋成形机构的出料成形管沿着第一方向依次排列；
位于同一袋成形机构内的转向元件、 对折元件， 及位于该对折元件内的出料成形管； 其 中，
该转向元件， 从转向元件的后方向着转向元件前端输入的包装膜， 在绕经转向元件时， 沿着一条从转向元件的前端转向至转向元件的一侧端再传输至转向元件上靠近该出料成形管 的另一侧端再向下传输的走膜路线进行输送； 其中， 所述两侧端为转向元件的左右两侧端， 并沿着转向元件的宽度方向分布， 所述转向元件的宽度方向与第一方向一致； 所述转向元件 上设置有位于走膜路线上并用于供包装膜绕过使包装膜转向的走膜位；
该对折元件， 向下传输的包装膜在经过对折元件时， 该包装膜纵向对折； 经过纵向对折 的包装膜的纵向开口均朝向于第一方向； 其中， 向下传输的包装膜在经过出料成形管时沿着 出料成形管的轴向传输。
2. 如权利要求 1所述的新型袋成形装置， 其特征在于： 所述转向元件包括第一转折件、 位于第一转折件上方的斜转折部、 第二转折件； 斜转折部的前端面为一呈倾斜设置的斜折面； 所述走膜位包括供包装膜依次绕经的斜折面、 第一转折件的外侧面、 第二转折件的外侧面； 所述第二转折件上供包装膜绕经的外侧面和第一转折件上供包装膜绕经的外侧面沿着转向元 件的宽度方向分布； 从斜折面上靠近第一转折件外侧面的一侧端至靠近第二转折件外侧面的 另一侧端， 所述斜折面逐渐向后倾斜。
3. 如权利要求 2所述的新型袋成形装置， 其特征在于： 第一转折件的外侧面在第一方向 与第二方向形成的参考面上的正投影为第一投影，斜折面在该参考面上的正投影为第二投影， 所述第一投影的外侧边缘位于第二投影的一侧； 其中， 转向元件的高度方向与第一方向垂直， 第二方向与第一方向、 转向元件的高度方向垂直。
4. 如权利要求 2所述的新型袋成形装置， 其特征在于： 所述第二转折件、 第一转折件均 沿着第二方向延伸， 其中， 转向元件的高度方向与第一方向垂直， 第二方向与第一方向、 转 向元件的高度方向垂直； 所述斜转折部、 第一转折件、 第二转折件自上至下依次排布。
5. 如权利要求 2所述的新型袋成形装置，其特征在于：袋成形装置包括至少两个转向板， 各个转向板沿着第一方向排列； 转向板在第一方向上的两侧端处均布设有转向元件， 该两个 转向元件上的斜转折部均成型在该转向板上， 转向板上的两个斜折面呈对称排布； 所述转向 板和其对应的两个转向元件组合成一转向单元， 各转向单元沿着第一方向排列， 任意相邻的 两个转向单元沿高度方向错开； 同一转向单元上的两个转向元件所对应的出料成形管均排布 在该两个转向元件上相邻的一侧。
6. 如权利要求 1所述的新型袋成形装置， 其特征在于： 各个转向元件沿着第一方向依次 排列， 而相邻的两转向元件沿高度方向相互错开。
7. 如权利要求 5或 6所述的新型袋成形装置， 其特征在于： 新型袋成形装置还包括路径 调整机构， 所述包装膜先经过路径调整机构， 然后再经过袋成形机构； 所述路径调整机构包 括安装支架、 安装在安装支架上的固定导膜轴、 以可调节位置的方式安装在安装支架上的活 动导膜轴； 所述固定导膜轴沿第一方向延伸。
8. 如权利要求 1所述的新型袋成形装置， 其特征在于： 该对折元件还包括限制部件； 所 述限制部件上形成有穿膜通道， 所述穿膜通道包括供出料成形管穿过的弧槽部、 与弧槽部连 通并呈条形状的限位部； 所述限位部沿着第一方向延伸。
9. 包装机， 包括供膜机构， 分切机构， 送料机构、 拉袋机构， 纵封机构， 横封机构， 切 断机构， 其特征在于： 还包括权利要求 1-8任一项所述的新型袋成形装置； 所述供膜机构、 分切机构、 袋成形装置、 拉袋机构、 纵封机构、 横封机构、 切断机构沿着包装膜的输送方向 依次设置； 送料机构用于向着袋成形装置的出料成形管输送物料。
10. 如权利要求 9所述的包装机， 其特征在于： 所述拉袋机构包括两个相互平行的转轴、 与各个袋成形机构——对应的至少两个转轮组件、 驱动机构， 所述转轴的轴向与第一方向一 致； 所述转轮组件均包括两个拉袋轮、 与其中一个拉袋轮接触的补偿轮； 所述驱动机构用于 驱动补偿轮和转轴转动； 同一转轮组件上的两个拉袋轮分别与两个转轴一一对应， 并通过单 向轴承安装在与其对应的转轴上； 包装膜经对折后， 从对应的转轮组件的两个拉袋轮之间经 过， 并经由该两拉袋轮的转动而驱动包装膜下移。
PCT/CN2013/086496 2013-10-23 2013-11-04 新型袋成形装置及包装机 WO2015058424A1 (zh)

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