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WO2013083042A1 - 站链节、链式输送机、灌装机以及折叠包装件折片方法 - Google Patents

站链节、链式输送机、灌装机以及折叠包装件折片方法 Download PDF

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Publication number
WO2013083042A1
WO2013083042A1 PCT/CN2012/085931 CN2012085931W WO2013083042A1 WO 2013083042 A1 WO2013083042 A1 WO 2013083042A1 CN 2012085931 W CN2012085931 W CN 2012085931W WO 2013083042 A1 WO2013083042 A1 WO 2013083042A1
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WO
WIPO (PCT)
Prior art keywords
package
support portion
chain
chain conveyor
flap
Prior art date
Application number
PCT/CN2012/085931
Other languages
English (en)
French (fr)
Inventor
朱双海
Original Assignee
台州市珠叶机械科技有限公司
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
Priority claimed from CN 201110397843 external-priority patent/CN102490936B/zh
Priority claimed from CN2011103988298A external-priority patent/CN102514773B/zh
Priority claimed from CN2011104023263A external-priority patent/CN102491058A/zh
Application filed by 台州市珠叶机械科技有限公司 filed Critical 台州市珠叶机械科技有限公司
Priority to EP12855478.9A priority Critical patent/EP2789546B1/en
Priority to JP2014545080A priority patent/JP6063955B2/ja
Priority to AU2012349488A priority patent/AU2012349488B2/en
Publication of WO2013083042A1 publication Critical patent/WO2013083042A1/zh
Priority to US14/296,482 priority patent/US20140283489A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/12—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element
    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • 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
    • B65B49/00—Devices for folding or bending wrappers around contents
    • B65B49/14—Folders forming part of, or attached to, conveyors for partially-wrapped articles
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap
    • B65B7/08—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap and folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/32—Individual load-carriers
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/28—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for discharging completed packages from machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0235—Containers
    • B65G2201/025—Boxes

Definitions

  • the present invention relates to a chain link of a chain conveyor, and more particularly to a chain conveyor for conveying a packaging unit having end flaps and folding the end flaps onto the end wall of the package to form a package Station chain link.
  • the invention also relates to a chain conveyor, and more particularly to a chain conveyor hinged by a plurality of station links to form an endless chain.
  • the invention also relates to a filling machine, in particular to a filling machine with a chain conveyor,
  • the invention also relates to a method of folding a package, and more particularly to a method of folding a bottom end flap of a package.
  • a typical example of such a package is a parallelepiped-shaped package made by folding and sealing a laminated tape-like packaging material.
  • the ribbon packaging material is sterilized on the filling machine by, for example, applying a chemical disinfectant such as a hydrogen peroxide solution, the hydrogen peroxide solution is removed after the treatment, and the packaging material is heated by heating. The surface evaporates.
  • the sterilized packaging material is maintained in a closed, sterilized environment and longitudinally folded and sealed to form a vertical tubular body.
  • the packaging material tube is then filled with food as a packaging object, sealed at equidistantly spaced lateral portions, and cut along these lateral portions into a plurality of pillow-shaped packages 3 (shown in Figure 1), It is then sent to a folding device where it is mechanically folded to form a corresponding package, such as a substantially parallelepiped package.
  • the package 3 has longitudinal sealing strips 4 extending along one side of each of the packages 3, the packages being sealed at opposite ends by respective transverse sealing strips 5, 6, the transverse direction
  • the sealing strips 5, 6 are perpendicular to and connected to the longitudinal sealing strip 4.
  • the package 3 has an axis parallel to the longitudinal sealing strip 4 and comprises a parallelepiped main portion 7; and a respective opposite top end 8 and bottom end 9 from the main portion 7 towards the respective transverse sealing strip 5, 6 and gradually become thinner. More specifically, the main portion 7 of each package 3 is flanked by two planar rectangular walls 10 that are parallel to each other and parallel to the axis, and two planar rectangular walls 11 that extend perpendicularly between the planar rectangular walls 10 Restricted to the ground.
  • Each end portion 8, 9 is defined by a pair of substantially isosceles trapezoidal walls 12 that are slightly inclined relative to each other with respect to a plane perpendicular to the axis A and have a wall 10 from the main portion 7.
  • the opposite edges defined by the respective edges, and the long sides interconnected by the respective seal lines 5, 6.
  • the longitudinal sealing strip 4 extends between the transverse sealing strip 5 and the transverse sealing strip 6 and extends along all of a planar rectangular wall 10 and along a corresponding circumscribing 12 on the same side as the planar rectangular wall 10.
  • Each of the transverse sealing strips 5, 6 forms a respective substantially elongated rectangular end flap 13, 14 which projects from the opposite package 3 in the direction of the axis A; and forms two The substantially triangular shaped flaps 15, 16 project laterally on opposite sides of the main portion 7 and are defined by the ends of the opposing walls 12.
  • the folding device flattens the ends 8, 9 of the opposing packages 3 towards each other and folds the respective end flaps 13, 14 onto the ends 8, 9.
  • FIG. 3 and 4 disclose a folding unit for a pourable food product packaging machine.
  • the folding unit 1 has at least one conveying member 35, 28 which passes through the end opposite the end flap 14 and which circulates in the supply direction C coaxial with the longitudinal axis A Receiving the opposite package 3, and the conveying members 35, 28 are supplied to the package 3 along a forming path B crossing the longitudinal axis A of the package 3; and a folding mechanism 24 along which the each is formed
  • the wrapper 3 interacts to fold the opposing end flaps 14 onto the bottom end 9 of the wrapper 3;
  • the folding mechanism 24 includes a movable plate 42, each movable plate 42 having two pins 49, pins 49 protrudes outwardly from opposite side sides of the movable plate
  • the conveying unit 35 of such a folding unit belongs to a station link of a chain conveying mechanism, and the impact surface of the folding mechanism on the conveying member 5-5 in the process of conveying the package from the feeding station to the output station.
  • the operation of folding the end flap onto the end portion is completed, however, the mechanism for providing the folding mechanism on the conveying member is complicated, and the end flap is folded forward to the end portion, and the package continues to travel for folding During the operation of the flaps, the folded end flaps are easily flipped up by the folding device to affect subsequent operations, thereby affecting the forming effect of the package.
  • the technical problem to be solved by the present invention is to provide a station chain link of a chain conveyor, wherein the hinged annular chain folds the end of the package during the process of transporting the package from the feeding station to the output station.
  • the sheet is folded back to the end portion to ensure that the end flaps are not flipped during subsequent folding flap operations, allowing the folding flaps to operate smoothly and the package forming effect is good.
  • the present invention provides a station link of a chain conveyor, comprising a hinge for hinged, and a support portion fixed on the hinge for supporting the package; the support portion is fixed with Holding and pushing the blade of the package; the blade will support a portion of the rectangular front support portion and the rear support portion; a plurality of the chain links can be hinged to form an endless chain, in a straight line segment, the blades of two adjacent station links The distance between the two is equal to the width L of the package; the length L5 of the support surface of the front support portion is equal to or slightly smaller than the distance L1 from the end flap to the rear side of the package; the rear end surface of the rear support portion forms a leading end The guide surface of the folded piece.
  • the station link of the present invention is compared with the prior art due to
  • the length L5 of the support surface of the front support portion is equal to or slightly smaller than the distance L1 from the end flap to the rear side of the package, and after being hinged into an endless chain, after the package is fed from the supply platform, the package is followed by the chain link.
  • the blade supports and its end flaps can enter the gap of the station link, along with the station link During the movement of the C-shaped portion toward the linear top branch, the blades of the latter station link push the package forward of the blade of the one-stop link, and the rear end surface of the rear support portion forms a guiding surface for guiding the end flap folding.
  • the present invention does not require the provision of additional components or means, and the operation of folding the folded flap is completed by merely relying on the station link itself, and the structure is simple.
  • the invention further provides a chain conveyor comprising the above-described station link.
  • the present invention also provides a filling machine having the above-described chain conveyor.
  • the present invention also provides a method of folding a bottom end flap of a package, comprising an annular chain hingedly formed by a plurality of said station links, the circular chain comprising a horizontally horizontal top branch, a bottom branch and two curved C a C-shaped portion respectively located at both ends of the top branch and the bottom branch; the central portion of the C-shaped portion respectively defines a supply platform and an output platform; the method comprises the following steps: A, feeding from the supply platform has an end fold The package of the piece causes the end flap to enter the gap of the links of two adjacent stations; B.
  • the blade of the last station link pushes the package to move to the top branch, so that: C, The guide member above the C-shaped portion of the supply platform flattens the end of the package; D, the rear end of the rear support portion guides the end flaps to be gradually folded onto the ends.
  • Figure 1 is a perspective view of the package before folding.
  • Figure 2 is a schematic side view of Figure 1.
  • FIG 3 is a schematic view of a station link of a chain conveyor in the prior art.
  • Figure 4 is a schematic view of the chain link of Figure 3 hinged to form a chain conveyor.
  • Figure 5 is a schematic illustration of a first type of station link of a chain conveyor of the present invention.
  • Figure 6 is a schematic illustration of a chain conveyor hinged from the station link of Figure 5.
  • Figure 7 is a schematic illustration of a second station link of a chain conveyor of the present invention.
  • Figure 8 is a schematic view of the state in which the package is supplied from the supply platform.
  • Figure 9 is a schematic view showing the state in which the end flap of the package enters the gap of the station link.
  • Figure 10 is a schematic view showing the state in which the end flaps of the package are folded.
  • Figure 11 is a schematic view showing a state in which the end flap of the package is folded to the end.
  • a preferred embodiment of the present invention is an endless chain 27 hinged by a station link 35 of a chain conveyor for continuously along a predominantly linear and horizontal forming path B.
  • the package 3 is supplied from the supply platform 21 to the output platform 22 (both shown schematically).
  • the chain conveyor includes a drive gear 25, a driven gear 26, and an endless chain 27; the endless chain 27 is hinged by a plurality of station links 35 to form an endless chain
  • the drive gear 25 and the driven gear 26 are wound around the drive gear 25 and the driven gear 26.
  • the endless chain 27 includes a straight horizontal top branch 30; a bottom branch 31 substantially parallel to the top branch 30; and two curved C-shaped portions 32, 33 located at the top branch 30 and the bottom branch, respectively.
  • the two ends of 31 are disposed such that their recesses face the top branch 30 and the bottom branch 31, and the top branch 30 and the bottom branch 31 are chained to form a loop-shaped chain, and the central portions of the C-shaped portions 32, 33 respectively define a supply platform 21 and output platform 22.
  • the path B includes a linear main portion B1 defined by the top branch 30 of the endless chain 27, and a corresponding supply end portion B2 and output end portion B3, the supply end portion B2 and the output end portion B3 being composed of C-shaped portions 32, 33
  • the top portions 32a, 33a are defined by corresponding tops 32a, 33a extending between the respective supply platform 21 and the output platform 22 and the top branch 30.
  • the top portion 32a of the C-shaped portion 32, the top branch 30, and the top portion 33a of the C-shaped portion 33 define a delivery portion of the endless chain 27 to deliver the wrapper 3 from the supply platform 21 to the output platform 22.
  • the remaining portion 32b of the C-shaped portion 32, the bottom branch 31, and the remaining portion 33b of the C-shaped portion 33 define the return portion of the endless chain 27 to
  • the station link 35 is returned from the output platform 22 to the supply platform 21, so that the endless chain 27 is circulated, and the package 3 is continuously fed from the supply platform 21 to the output platform 22, at the bottom of the package 3.
  • the end flaps 14 are folded onto the end portions 9, and the end flaps 13 at the top end of the package 3 are folded onto the end portions 8 by the guide members 40 of the folding device 23.
  • the station link 35 includes a hinge portion 38 for hinged, and a support portion 39 fixed to the hinge portion 38 for supporting the package member 3; the outer side surface of the support portion 39 is a flat rectangular surface, forming a support for supporting the package member 3.
  • the distance between the blades 28 of the two adjacent links 35 is equal to the width L of the package 3 (the distance between the planar rectangular walls 10 of the package 3 shown in Figure 2).
  • the blade 28 divides the support portion 39 into a rectangular front support portion 37 and a rear support portion 36 for supporting the package 3;
  • the front support portion 37 refers to the same station link 35
  • the endless chain 27 transports the upstream (front) portion of the package in the traveling direction
  • the rear support portion 36 refers to the portion of the same station link 35 that is downstream (rearward) in the traveling direction of the endless chain 27 of the transport package;
  • the front end surface of the front support portion 37 is parallel to the rear end surface of the rear support portion 36, and the support surface of the rear support portion 36 is in the same plane as the support surface of the front support portion 37;
  • the support surface of the rear support portion 36 is perpendicular to the rear end surface and transitions through a circular arc or a slope, the height of the rear end surface being equal to or slightly larger than the height H of the end flap 14, forming a guiding surface of the folded end flap 14;
  • the length of the support portion 37 and the rear support portion 36 are different along the path B: the length
  • the package member 3 After the package member 3 is fed from the supply platform 21, the package member 3 is supported by the blades 28 of the rear station link 35 and its end The flap 14 can enter the gap 43 along with the station link 35 During the movement of the C-shaped portion 32 toward the linear top branch 30, the blades 28 of the latter station link 35 push the package 3 toward the blade 28 of the previous station link, the gap 43 is gradually reduced, and the end flaps are simultaneously folded. 14 was The rear end face of the front support link 35 rear support portion 36 blocks and gradually withdraws from the inside of the gap 43 and is folded back to the end portion 9.
  • the blades 28 are placed vertically in the main portion B1 of the path B, and the supply platform 21 and the output platform 22 are presented in a substantially horizontal position.
  • Each package 3 is placed on the conveyor and the end 9 is in contact with the conveying portion of the endless chain 27, a rectangular rectangular wall 10
  • One of the sides rests on the blade 28 of the rear station link 35, and the axis A is parallel to the blade 28 and intersects the path B.
  • each package 3 is fed onto the chain conveyor in the supply direction C and at the horizontal input position of the supply platform 21, which is coaxial with the axis A of the package 3, at this level
  • the end portion 9 and the opposite end flap faces The transport position of the endless chain 27 is placed.
  • each of the folded packaging containers 2 is removed from the conveyor at the horizontal output position of the output platform 22.
  • the front end face of the front support portion 37 of the station link 35 and the rear end face of the rear support portion 36 of the adjacent station link 35 are in a straight line segment.
  • a gap is formed therebetween, the width of the gap being equal to or greater than the thickness of the end flaps 14, the depth of the gap being equal to or slightly greater than the height of the end flaps 14.
  • the difference from the above embodiment is as follows:
  • the rear end surface of the rear support portion 36 is inclined away from the blade 28 to form a guide surface of the folded end flap 14, and the rear end surface is inclined to an angle of 90°-135° between the support surface and the rear end surface of the rear support portion 36.
  • the projection height of the rear end surface of the rear support portion 36 perpendicular to the support surface is equal to or slightly larger than the height H of the end flap 14, so that the end flaps 14 can all be accommodated in the gap 43.
  • the support surface of the rear support portion 36 forms an acute angle with the rear end surface, and the object of the present invention can also be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Chain Conveyers (AREA)
  • Closing Of Containers (AREA)

Abstract

公开了一种站链节、链式输送机、灌装机以及折叠包装件折片方法。该站链节包括铰接部(38)、支撑部(39)；该支撑部上固定有用于夹持并推动包装件的叶片(28)；该叶片将支撑部分成矩形的前支撑部(37)和后支撑部(36)；多个该站链节可铰接形成的环形铰接链，在直线段，两相邻站链节的叶片之间的距离等于包装件的宽度(L)；前支撑部的支撑面长度(L5)等于或略小于端部折片到包装件后侧面距离(L1)；后支撑部的后端面形成引导端部折片折叠的引导面。包装件从环形铰接链的供应平台处进给后，随着站链节从C形部向直线状的顶部分支运动过程中，后一站链节的叶片推动包装件向前一站链节的叶片靠拢，后支撑部的后端面使端部折片向后折叠到端部部分上。

Description

站链节、链式输送机、灌装机以及折叠包装件折片方法 技术领域
本发明涉及一种链式输送机的站链节，尤其涉及一种用于输送具有端部折片的包装单元并将该端部折片折叠到包装件端壁上形成包装件的链式输送机的站链节。
本发明还涉及一种链式输送机，尤其涉及一种由多个站链节铰接形成环形链的链式输送机。
本发明还涉及一种灌装机，尤其涉及一种具有链式输送机的灌装机，
本发明还涉及一种折叠包装件的方法，尤其涉及一种折叠包装件底端端部折片的方法。
背景技术
目前，市场上有许多可灌装食品如牛奶、饮料、果汁等灌装到由消毒过的包装材料制成的包装件中进行销售的。这种包装件的典型例子是平行六面体形状的包装件，其通过折叠并密封层压的带状包装材料而制成。包装件在全自动的灌装机 （又称包装机）中生产，带状包装材料通过比如施加化学消毒剂，例如过氧化氢溶液而在灌装机上被消毒，该过氧化氢溶液在处理后被去掉，通过加热而从包装材料的表面蒸发掉。而消毒后的包装材料被维持在封闭的、消毒过的环境中，并纵向地被折叠并密封，从而形成垂直的管体。包装材料管然后被填充作为包装对象的食品，在等距间隔的横向部分处密封，并沿这些横向部分切割成许多个枕头形包装件3(如图1所示)， 然后将其送至折叠装置，在该处将其用机械方法折叠而形成相应的包装件，比如基本上为平行六面体的包装件。
如图1和2所示，包装件3具有纵向密封带4，沿每个包装件3的一侧延伸，该包装件被相应的横向密封带5、6密封在相对的端部处，该横向密封带5、6垂直于并且连接到纵向密封带4上。包装件3具有平行于纵向密封带4的轴线，并且包括平行六面体形的主部7；以及分别相对的顶部端部8及底部端部9，其从主部7朝向相应的横向密封带5、6而逐渐变细。更具体地说，每个包装件3的主部7被两个相互平行并且平行于轴线的平面矩形壁10，以及被两个在平面矩形壁10之间垂直地延伸的平面矩形壁11而侧向地限制。每个端部部分8、9由一对基本上成等腰梯形的壁12限定，这一对壁12彼此相向地相对于与轴线A垂直的平面稍许倾斜，并具有由主部7的壁10的相应边缘限定的矩边，和由相应的密封线5、6互相连接的长边。纵向密封带4在横向密封带5和横向密封带6之间延伸，并且沿一个平面矩形壁10的全部及沿与平面矩形壁10位于同一侧的对应避12而延伸。每个横向密封带5、6形成相应的基本上细长的矩形端部折片13、14，该端部折片13、14从相对的包装件3上沿轴线A的方向突出；并且形成两个基本上为三角形的折翼15、16，该折翼15、16侧向地在主部7的相对侧上突出，并且由相对壁12的端部所限定。为了形成包装容器，折叠装置将相对的包装件3的端部8、9相向地向下压平，并且将相应的端部折片13、14折叠到端部8、9上。
中国发明专利说明书CN100556760C公开了一种用于可倾倒的食品产品包装机的折叠单元， 如图3、4所示，用于从密封包装物3生产可倾倒食品产品的包装2，其具有纵向轴线A且具有至少一个待折叠的端部折片14，端部折片14在前述轴线方向上突出；折叠单元1具有至少一个输送部件35、28，输送部件35、28通过与端部折片14相对的端部，并且在与所述纵向轴线A同轴的供给方向C上，循环地接收相对的包装物3，且输送部件35、28沿与包装物3的纵向轴线A交叉的成形路径B而供给包装物3；以及折叠机构24，其沿所述成形路径B而与每个包装物3相互作用，以将相对的端部折片14折叠到包装物3的底端端部9上；折叠机构24包括可移动板42，每个可移动板42具有两个销钉49，销钉49从可移动板42的相对侧侧向向外突出；可移动板42限定了冲击表面43，冲击表面43通过与端部折片14相对应的端部接收每个包装物3，并且冲击表面43由输送部件35、28承载，以在第一运行位置与第二运行位置之间移动，在第一运行位置内，冲击表面43与相对的包装物3的供给方向C形成开口朝向成形路径B方向的90度以上的角度，从而根据对相对的端部折片14的冲击，使相对端部折片14沿成形路径B而在包装物的行进方向折叠到包装物3上，在第二运行位置内，冲击表面43朝向包装物3而转动，并与包装物3协作，以完成相对的端部折片14在所述包装物3上的折叠。这种折叠单元的输送部件35属于一种链式输送机构的站链接，在将包装物从进给工位输送到输出工位的过程中，输送部件---5上的折叠机构的冲击表面完成将端部折片折叠到端部部分上的操作，然而，在输送部件上设置折叠机构的机构复杂，且端部折片是向前折叠到端部部分上，在包装物继续行进进行折叠折翼的操作过程中，被折叠后的端部折片容易与折叠装置作用被翻起而影响后续操作，从而影响包装件的成形效果。
发明内容
本发明所要解决的技术问题是提供一种链式输送机的站链节，其铰接形成的环形链在将包装件从进给工位输送到输出工位过程中，将包装件的端部折片向后折叠到端部部分上，确保在后续折叠折翼操作中端部折片不会被翻起，使折叠折翼操作顺畅，包装件成形效果好。
为解决上述技术问题，本发明提供一种链式输送机的站链节，包括用于铰接的铰接部、固定在该铰接部上用于支撑包装件的支撑部；该支撑部上固定有用于夹持并推动包装件的叶片；该叶片将支撑部分成矩形的前支撑部和后支撑部；多个该站链节可铰接形成的环形链，在直线段，两相邻站链节的叶片之间的距离等于包装件的宽度L；前支撑部的支撑面长度L5等于或略小于所述端部折片到所述包装件后侧面距离L1；所述后支撑部的后端面形成引导端部折片折叠的引导面。
本发明的站链节与现有技术相比，由于 前支撑部的支撑面长度L5等于或略小于端部折片到所述包装件后侧面距离L1，铰接成环形链后，包装件从供应平台处进给后，包装件被后一站链节的叶片支撑并且其端部折片可以进入站链节的间隙，随着站链节从 C 形部向直线状的顶部分支运动过程中，后一站链节的叶片推动包装件向前一站链节的叶片靠拢， 后支撑部的后端面形成引导端部折片折叠的引导面，使端部折片被 前 逐渐从间隙内退出并向后折叠到端部部分上，因此，本发明无需设置额外部件或装置，仅仅依靠 站链节本身 即完成了折叠部折片折叠的操作，结构简单。
本发明进一步提供一种链式输送机，该链式输送机包括上述站链节。
本发明还提供一种灌装机，该灌装机具有上述的链式输送机。
本发明还提供一种折叠包装件底端端部折片的方法，包括多个上述站链节铰接形成的环形链，该环形链包括直线水平状的顶部分支、底部分支以及两个弯曲的C形部，C形部分别位于顶部分支和底部分支的两端；该C形部的中部分别限定了供应平台及输出平台；所述方法包括以下步骤：A、从供应平台进给具有端部折片的包装件，使端部折片进入两相邻站链节的间隙；B、转动环形链，后一站链节的叶片推动包装件向顶部分支移动，使：C、 供应平台处 C 形部上方的导向部件压平包装件的端部；D、后支撑部的后端面引导端部折片逐步折叠到端部上。
附图说明
图1是折叠前的包装件的立体示意图。
图2是图1的侧视的示意图。
图3是现有技术中一种链式输送机的站链节的示意图。
图4是图3中站链节铰接形成链式输送机的示意图。
图5是本发明一种链式输送机的第一种站链节的示意图。
图6是图5中的站链节铰接形成的一种链式输送机的示意图。
图7是本发明一种链式输送机的第二种站链节的示意图。
图8是包装件从供应平台供应的状态示意图。
图9是包装件的端部折片进入站链节间隙的状态示意图。
图10是包装件的端部折片折叠的状态示意图。
图11是包装件的端部折片折叠到端部的状态示意图。
具体实施方式
请参阅图5、6，本发明最佳的实施例是一种链式输送机的站链接35铰接形成的环形链27，用于连续地沿主要为直线状及水平状的成形路径B，将包装物3从供应平台21供给到输出平台22上（两者均示意性地示出）。
链式输送机包括驱动齿轮25、从动齿轮26、环形链27；环形链27由多个 站链节35铰接形成环状链 ，环绕驱动齿轮25和从动齿轮26，并且与驱动齿轮25和从动齿轮26啮合。
环形链27包括直线水平状的顶部分支30；基本上平行于顶部分支30的底部分支31；以及两个弯曲的C形部32、33，C形部32、33分别位于顶部分支30和底部分支31的两端，设置成使其凹陷面向顶部分支30和底部分支31，并且将顶部分支30和底部分支31站链节起来形成环形状链，C形部32、33的中部分别限定了供应平台21及输出平台22。
路径B包括由环形链27的顶部分支30所限定的直线状的主部B1，以及相应的供应端部B2和输出端部B3，供应端部B2和输出端部B3由C形部32、33相对应的顶部32a、33a所限定，顶部32a、33a在对应的供应平台21及输出平台22及顶部分支30之间延伸。C形部32的顶部32a、顶部分支30、C形部33的顶部33a限定了环形链27的输送部，以将包装物3从供应平台21输送供给到输出平台22。而C形部32的剩余部32b、底部分支31、C形部33的剩余部33b则限定了环形链27的返回部，以将 站链节35从 输出平台22返回到供应平台21，因此环形链27循环运转，将包装件3不断地从供应平台21输送供给到输出平台22上，包装件3底端的 端部折片14被折叠到端部部分9上 ，包装件3顶端的 端部折片13在折叠装置23的导向部件40作用下被折叠到端部部分8上 。
站链节35包括用于铰接的铰接部38、固定在该铰接部38上用于支撑包装件3的支撑部39；该支撑部39外侧面为平坦的矩形面，形成支撑包装件3的支撑面，其上固定有用于夹持并推动包装件3的叶片28，该叶片28用于夹持包装件3的平面矩形壁10并推动包装件3，以沿路径B供给包装物，在直线段的 顶部分支30时 ，两相邻链接35的叶片28之间的距离等于包装件3的宽度L（图2中所示包装件3的平面矩形壁10之间距离）。
叶片28将支撑部39分成矩形的用于支撑包装件3的前支撑部37和后支撑部36；前支撑部37是指同一站链节35的处于 环形链27输送包装件行进方向上游（前方）的部位， 后支撑部36是指同一站链节35的处于 环形链27输送包装件行进方向下游（后方）的部位； 前支撑部37的前端面平行于所述后支撑部36的后端面，后支撑部36的支撑面与前支撑部37的支撑面处于同一平面内 ； 后支撑部36支撑面与后端面垂直且通过圆弧过渡或斜面过渡，该后端面高度等于或略大于所述端部折片14的高度H，形成折叠端部折片14的引导面；前支撑部37和后支撑部36沿路径B的长度不同：前支撑部37的支撑面长度L5等于或略小于所述端部折片14到包装件3后侧面距离L1，这样便于在 供应平台21处供应包装件3时， 端部折片14可以进入两相邻站链节35间的间隙43中；相应地，后支撑部36的支撑面长度L4等于或略大于端部折片14的高度H与其到包装件3前侧面距离L2之和，采用这样长度不同的结构后，由于在 供应平台21对应的C形部32的顶部32a处，如图8至11所示，环形链27的两 支撑部39的前支撑部37和后支撑部36之间有具有间隙43，当包装件3从供应平台21处进给后，包装件3被后一站链节35的叶片28支撑并且其端部折片14可以进入该间隙43，随着站链节35从 C 形部32向直线状的顶部分支30运动过程中，后一站链节35的叶片28推动包装件3向前一站链节的叶片28靠拢，该间隙43逐渐缩小，同时 端部折片14被 前一站链节35 后支撑部36的后端面阻挡作用而逐渐从间隙43内退出并向后折叠到端部部分9上。
根据链式输送机的结构，叶片28在路径B的主部B1出呈现为垂直地放置，在供给平台21、输出平台22出呈现大致水平的位置。
每个包装件3放置在输送机上且端部9与 环形链27的输送部接触， 平面矩形壁 10 中的其中一个侧面搁置在后一站链节35的叶片28上，并且轴线A平行于该叶片28，而与路径B交叉。
在供应平台21处，每个包装件3在供给方向C上并且在供应平台21的水平输入位置处供给到链式输送机上，该供给方向C与包装件3的轴线A同轴，在该水平供应位置处，端部9及相对的端部折片面向 环形链27的输送位部而放置。类似地，每个折叠完成后的包装容器2在输出平台22的水平输出位置处从输送机上移除。
为了防止包装件3的端部折片14被挤压损坏，在直线段时，所述站链节35的前支撑部37的前端面与相邻站链节35的后支撑部36的后端面之间形成有间隙，间隙的宽度等于或大于端部折片14的厚度，间隙的深度等于或略大于端部折片14的高度。
作为本发明的另一实施例，与上述实施例不同在于：如图7所示， 后支撑部36的后端面向远离所述叶片28方向倾斜，形成折叠端部折片14的导向面，后端面的倾斜程度为后支撑部36支撑面与后端面夹角为90°-135°，且后支撑部36后端面垂直于支撑面的投影高度等于或略大于端部折片14的高度H，使端部折片14可以全部容纳在间隙43内。
当然，后支撑部36的支撑面与后端面形成锐角，也能实现本发明的目的。

Claims (1)

  1. 1 、一种链式输送机的站链节（35） , 包括用于铰接的铰接部（38）、固定在该铰接部（38）上用于支撑包装件（3）的支撑部（39）；该支撑部（39）上固定有用于夹持并推动包装件（3）的叶片（28）；该叶片（28）将支撑部（39）分成矩形的前支撑部（37）和后支撑部（36）；多个该站链节（35）可铰接形成的环形铰接链（27），在直线段，两相邻站链节（35）的叶片（28）之间的距离等于包装件（3）的宽度L；其特征在于：所述前支撑部（37）的支撑面长度L5等于或略小于所述端部折片(14)到所述包装件（3）后侧面距离L1；所述后支撑部（36）的后端面形成引导端部折片(14)折叠的引导面。
    2 、根据权利要求1所述的一种链式输送机的站链节，其特征在于：所述后支撑部（36）的支撑面长度L4略大于所述端部折片(14)的高度H与其到所述包装件（3）前侧面距离L2之和。
    3 、 根据权利要求2所述的一种链式输送机的站链节，其特征在于：所述后支撑部（36）支撑面与后端面通过圆弧过渡或斜面过渡。
    4 、根据权利要求2所述的一种链式输送机的站链节，其特征在于：所述后支撑部（36）支撑面与后端面垂直，该后端面高度等于或略大于所述端部折片(14)的高度H。
    5 、根据权利要求2所述的一种链式输送机的站链节，其特征在于：所述后支撑部（36）的后端面向远离所述叶片（28）方向倾斜，形成折叠端部折片(14)的导向面。
    6 、根据权利要求5所述的一种链式输送机的站链节，其特征在于：所述后支撑部（36）支撑面与后端面夹角为90°-135°。
    7 、根据权利要求5所述的一种链式输送机的站链节，其特征在于：所述后支撑部（36）后端面垂直于支撑面的投影高度等于或略大于所述端部折片(14)的高度H。
    8 、根据权利要求1所述的一种链式输送机的站链节，其特征在于：所述后支撑部（36）的支撑面与后端面形成锐角。
    9 、根据权利要求1-8中任一项所述的一种链式输送机的站链节，其特征在于：所述前支撑部（37）的前端面平行于所述后支撑部（36）的后端面。
    10 、 一种链式输送机，包括权利要求1至9中任一项所述的站链节。
    11 、一种灌装机，包括权利要求10中所述的链式输送机。
    12 、一种折叠包装件底端端部折片的方法，包括多个权利要求1-9中任一项所述的站链节（35）铰接形成的环形铰接链（27），该 环形铰接链（27）包括直线水平状的顶部分支（30）、底部分支（31）以及两个弯曲的C形部（32、33），C形部（32、33）分别位于顶部分支（30）和底部分支（31）的两端；该C形部（32、33）的中部分别限定了供应平台（21）及输出平台（22） ；
    所述方法包括以下步骤：
    A 、从供应平台（21）进给具有端部折片（14）的包装件（3），使端部折片（14）进入两相邻站链节（35）的间隙（43）；
    B 、转动 环形铰接链（27），后一 站链节（35）的叶片（28）推动 包装件（3）向顶部分支（30）移动，使：
    C 、 供应平台（21）处 C 形部（32）上方的导向部件（40）压平包装件（3）的端部（8、9）；
    D 、 后支撑部（36）的后端面引导端部折片(14)逐步折叠到端部（9）上。
PCT/CN2012/085931 2011-12-05 2012-12-05 站链节、链式输送机、灌装机以及折叠包装件折片方法 WO2013083042A1 (zh)

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