WO2020098237A1 - 一种用于吹瓶机模架联动的连杆机构 - Google Patents

一种用于吹瓶机模架联动的连杆机构 Download PDF

Info

Publication number
WO2020098237A1
WO2020098237A1 PCT/CN2019/087182 CN2019087182W WO2020098237A1 WO 2020098237 A1 WO2020098237 A1 WO 2020098237A1 CN 2019087182 W CN2019087182 W CN 2019087182W WO 2020098237 A1 WO2020098237 A1 WO 2020098237A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
connecting rod
link
wedge
linkage
Prior art date
Application number
PCT/CN2019/087182
Other languages
English (en)
French (fr)
Inventor
冯志华
倪俊芳
钱志良
王家善
刘丁丁
吴书朋
叶鹏
Original Assignee
江苏新美星包装机械股份有限公司
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 江苏新美星包装机械股份有限公司 filed Critical 江苏新美星包装机械股份有限公司
Publication of WO2020098237A1 publication Critical patent/WO2020098237A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

Definitions

  • the invention relates to the technical field of bottle blowing machines, in particular to a link mechanism used for the linkage of the mold frame of the bottle blowing machine.
  • the bottle blowing machine is the key equipment for producing plastic bottles for various liquid packages (filling).
  • the bottle blowing machine contains left and right mold frames that can be opened and closed in a plane.
  • the left and right mold frames are built with molds respectively.
  • the left and right mold frames swing to form the opening and closing of the mold frame by the opening and closing mold mechanism. Closed, there is a bottom mold controlled by the precession mechanism in another plane perpendicular to the swing motion plane of the left and right mold bases.
  • the wedge card of the built-in molds of the left and right mold bases The ring is gradually embedded into the wedge-shaped ring groove of the bottom mold precessing until it locks and forms a cavity that is consistent with the appearance of the desired processed product (plastic bottle).
  • the preforms processed by the heating process are sent to the aforementioned cavity by the preform feeding mechanism, and the required processed products (plastic bottles) are finally formed by blowing, stretching, cooling and other processes, and then removed by the bottle taking mechanism and sent to the next channel Process.
  • the blow molding machine has strict requirements for each process and high mutual cooperation requirements, especially for the synchronization between the mold frame and the bottom mold.
  • the movement forms of the bottom mold and the mold frame are divided into two types: separation type and linkage type.
  • Separate bottom mold motion control mechanism is limited by factors such as design, manufacturing, and installation due to the opening and closing mold motion control mechanism of the mold frame.
  • the synchronous linkage of the two movements is affected.
  • the dynamic characteristics of the mechanism are poor, resulting in bottle blowing
  • the increase in machine speed is limited.
  • the power of the linked bottom mold motion control mechanism is derived from the rotor arm of the mold opening and closing cam, so the bottom mold and the mold frame movement have good consistency.
  • the linkage between the bottom mold and the mold frame is difficult to be realized by the plane mechanism.
  • the cylindrical cam has a single structure and few moving parts, but the cylindrical cam is a space cam. The design and processing of the cylindrical cam flange or groove profile, especially the installation and positioning of the cylindrical cam center, is difficult.
  • the rotor and the cam profile are easy Stuck or only form point contact, the compressive stress is large, and the amount of wear is relatively large, especially when the bottom die has a large stroke, the pressure angle of the cylindrical convex profile surface restricted by the space size will increase sharply, resulting in more serious wear; space four
  • the design, processing and installation of the compound contour of the connecting rod and the flat cam is simpler than that of the cylindrical cam, but when the space four-bar linkage is compressed, its weak points of poor bearing capacity will be exposed, directly affecting the whole machine of the bottle blowing machine High-speed performance.
  • the purpose of the present invention is to provide a link mechanism for the linkage of the mold frame of a bottle blowing machine, which solves the problem that the bottom mold frame cannot move when the left mold frame and the right mold frame are opened and near the closing stage in the linkage mechanism.
  • a link mechanism used for linkage of the mold frame of the bottle blowing machine is used for linkage of the mold opening and closing mold base and the bottom mold base.
  • the opening and closing mold base includes a left side rotating on a first axis and arranged on the frame A mold base and a right mold base, the bottom mold base is raised and lowered along a bottom mold guide post fixed on the frame, the bottom mold base is provided with a wedge-shaped ring groove, the left mold base and the right
  • Each of the mold frames is provided with a wedge-shaped snap ring for snapping into the wedge-shaped ring groove;
  • the link mechanism includes a second shaft that is rotated on the axis of the shaft and is fixed on one end A first swing arm on the second shaft for driving the rotation of the second shaft, and provided between the second shaft and the mold opening and closing mold holder for rotating the second shaft
  • a first driving mechanism that drives the left mold holder and the right mold holder to cooperate with each other in rotational mold opening or rotational mold clamping, and a cam mechanism for
  • the link mechanism further includes a second drive mechanism and a return spring provided between the bottom mold formwork and the bracket for providing an elastic restoring force that drives the bottom formwork rise;
  • the second drive mechanism includes a first link hinged at one end to the first swing arm, a second link hinged at one end to the bottom mold form, and a third link hinged at one end to the bracket Rod; the other end of the third link is hinged to the other end of the first link and the other end of the second link; the first link, the second link, the The third connecting rod, one of which has only one connecting rod disconnected therefrom and forms a connecting mechanism with at least one redundant degree of freedom;
  • the connecting rod with connecting mechanism includes unstraightened state and straightened state
  • the first swing arm swings forward: Before the wedge-shaped snap ring is detached from the wedge-shaped ring groove, the connecting rod with the connecting mechanism is in an unstraightened state; when the wedge-shaped snap ring is detached from the wedge After the ring groove, the connecting rod with the connecting mechanism is in a straightened state;
  • the bottom mold base rises and resets.
  • the connecting rod with the connecting mechanism is in a straightened state; the bottom mold base stops rising, and the first A swing arm continues to swing in the reverse direction.
  • the connecting rod with the connecting mechanism is in an unstraightened state.
  • the first connecting rod, the second connecting rod, and the third connecting rod, and only one of the three connecting rods is disconnected from the connecting rod at least once, and each opening is formed
  • the connection mechanism is described.
  • connection mechanism is a hinge point with a redundant degree of freedom.
  • connection mechanism is a flexible connection with at least one redundant degree of freedom.
  • the first connecting rod is disconnected therefrom to form a front holding hand and a rear holding hand, and the front holding hand and the rear holding hand are hinged to each other.
  • both the second link and the third link extend in the vertical direction.
  • the bracket is further provided with a limit block, and when the third link extends in the vertical direction, the limit block is pressed against a part of the third link that is away from the first link side.
  • the first driving mechanism includes a second swing arm fixedly connected to the second shaft, and a link of a mold opening and closing mechanism disposed between the second swing arm and the mold opening and closing mold frame .
  • the cam mechanism includes a cam rotor provided on the first swing arm, and a cam guide rail for driving the first swing arm through the cam rotor.
  • the present invention provides a link mechanism for the linkage of the mold frame of a blow molding machine.
  • the connecting mechanism not only makes the left mold frame and the right mold frame open at the beginning, the connecting rod is not straightened to form a redundant amount, and the bottom mold frame cannot be driven to link, so that the wedge-shaped snap ring and the wedge-shaped ring groove can be smoothly disengaged.
  • the connecting rod is straightened, the bottom mold base is lowered synchronously with the mold opening.
  • the connecting rod is straightened, which drives the left mold base and the right mold base to synchronously close the mold.
  • the connecting rod is turned to form a redundant amount, that is, the die frame of the bottom die cannot be driven upward when the mold clamping is continued, so that the wedge-shaped snap ring can be smoothly inserted into the wedge-shaped ring groove.
  • Figure 1 is a schematic structural diagram 1 of the device of the present invention.
  • Figure 2 is a second structural diagram of the device of the present invention.
  • Figure 3 is a schematic diagram of the device of the present invention.
  • the above-mentioned link mechanism for the linkage of the mold frame of the bottle blowing machine is used for linkage of the opening and closing mold frame and the bottom mold frame 5.
  • the mold opening and closing mold base includes a left mold base 3 disposed on the frame 2 rotating around the first axis 1, and a mold base 2 rotating around the first axis 1 disposed on the frame 2 to cooperate with the left mold base 3 to open and close the mold
  • the right mold frame 4; the bottom mold frame 5 moves up and down along the bottom mold guide column 17 fixed on the frame 2 (bracket 10).
  • the bottom mold frame 5 is provided with a wedge-shaped ring groove
  • the left mold frame 3 and the right mold frame 4 are provided with a wedge-shaped snap ring for snapping into the wedge-shaped ring groove.
  • the above-mentioned link mechanism for the linkage of the mold frame of the bottle blowing machine includes a second shaft 6 provided on the frame 2 rotating around its own axis, and one end fixed on the second shaft 6 for driving the second shaft
  • the first swing arm 7 which is rotated by the two shafts 6 and the rotation opening which is provided between the second shaft 6 and the mold opening and closing mold to drive the left mold base 3 and the right mold base 4 to cooperate with each other when the second shaft 6 rotates
  • the frame 2 is provided with a bracket 10 located under the bottom mold frame 5.
  • the frame 2 and the bracket 10 are integrally formed.
  • the first shaft 1 and the second shaft 6 both extend in the vertical direction;
  • the first drive mechanism includes a second swing arm 8 fixedly connected to the second shaft 6, a second swing arm 8 and The opening and closing mechanism connecting rod 9 between the opening and closing mold frames;
  • the cam mechanism includes a cam rotor 16 provided on the first swing arm 7 and a cam guide rail for driving the first swing arm 7 through the cam rotor 16.
  • the above-mentioned link mechanism for the linkage of the mold base of the bottle blowing machine further includes a second driving mechanism, which is provided between the bottom mold base 5 and the bracket 10 and is used to provide an elastic restoring force for driving the bottom mold base 5 upward.
  • Reset spring 11 is provided between the bottom mold base 5 and the bracket 10 and is used to provide an elastic restoring force for driving the bottom mold base 5 upward.
  • the above-mentioned second driving mechanism includes a first link 12 hinged to the first swing arm 7 at one end, a second link 13 hinged to the bottom mold frame 5 at one end, and a third link 14 hinged to the bracket 10 at one end ;
  • the other end of the third link 14 is hinged to the other end of the first link 12 and the other end of the second link 13, respectively;
  • the connecting mechanism may be a hinge point 123 with one redundant degree of freedom, or a flexible connecting piece with at least one redundant degree of freedom.
  • the connecting rod with the connection mechanism includes an unstraightened state and a straightened state.
  • the first link 12 is disconnected therefrom to form a front holding hand 121 and a rear holding hand 122, and the front holding hand 121 and the rear holding hand 122 are hinged to each other.
  • the first swing arm 7 swings forward, and the first driving mechanism drives the mold opening and closing mold holder to open the mold.
  • the first link 12 with the connecting mechanism is not straightened.
  • the bottom mold base 5 does not move, forming a mold-opening idle period for the bottom mold base 5; after the wedge-shaped snap ring leaves the wedge-shaped ring groove, the first connecting rod 12 with the connecting mechanism is in a straightened state, the first swing The arm 7 continues to swing forward, the mold opening and closing mold base continues to open the mold, and the bottom mold base 5 is simultaneously lowered;
  • the bottom mold base 5 rises and resets.
  • the first connecting rod 12 with the connecting mechanism is in a straightened state, and the first swing arm 7 is synchronously reversed and driven to open and close Simultaneous mold clamping of the mold base; the bottom mold base 5 stops rising, and the first swing arm 7 continues to swing in reverse.
  • the first connecting rod 12 with the connecting mechanism is in an unstraightened state.
  • the bottom mold base 5 does not move to form a mold closing idle period for the bottom mold base 5, and the mold opening and closing mold base continues to close the mold until the wedge-shaped snap ring snaps into the wedge-shaped ring groove.
  • the bracket 10 is further provided with a limit block 15.
  • the limit block 15 is pressed against the side of the third link 14 away from the first link 12. That is, the first link 12 and the limit block 15 are located on different sides of the third link 14.
  • the sliding of the bottom mold base 5 on the frame 2 constitutes a sliding pair, and the connections of other components are hinge connections to form a rotating pair or a spherical pair. Therefore, the above-mentioned link mechanism for the linkage of the blowing machine mold base has
  • the low-level mechanism usually has the advantages of simple structure, easy manufacturing, reliable operation, being able to withstand a large load and transmitting large power.
  • the first swing arm 7, the front holding hand 121, the rear holding hand 122, the third link 14, and the bracket 10 constitute a space five-link mechanism.
  • the first swing arm 7 drives the left mold frame 3 and the right mold frame 4 to gradually open until the wedge-shaped snap ring completely disengages from the wedge-shaped ring groove.
  • the space five-bar linkage mechanism is essentially a space four-bar linkage mechanism, and the bottom mold frame 5 No movement, forming an open mold idle period for the bottom mold base 5; the left mold base 3 and the right mold base 4 are gradually closed by the first swing arm 7, and the return spring 11 drives the bottom mold base 5 to reset, since the wedge-shaped snap ring After being inserted into the wedge-shaped ring groove on the bottom mold base 5 in the mold clamping position and locking the bottom mold base 5, the space five-link mechanism is essentially a space four-link mechanism, and the bottom mold base 5 does not move, forming a target The mold clamping idle period of the bottom mold base 5.
  • the cam mechanism drives the first swing arm 7 to swing forward, and the first drive mechanism drives the mold opening and closing mold holder to open the mold.
  • the first link 12 with the connecting mechanism Before the wedge-shaped snap ring comes out of the wedge-shaped ring groove, the first link 12 with the connecting mechanism is in In the non-straightened state, the bottom mold base 5 does not move, forming a mold-opening idle period for the bottom mold base 5; after the wedge-shaped snap ring is detached from the wedge-shaped ring groove, the first link 12 with the connecting mechanism is in the straightened state, The cam mechanism drives the first swing arm 7 to continue to swing forward, the mold opening and closing mold base continues to open the mold, and the bottom mold base 5 is simultaneously lowered;
  • the return spring 11 drives the bottom mold base 5 to rise and reset.
  • the first connecting rod 12 with the connecting mechanism is in a straightened state, and the first swing arm 7 is synchronized to swing in reverse , Driving the mold opening and closing mold base to synchronously close; the bottom mold base 5 stops closing after the mold is in place, and the cam mechanism drives the first swing arm 7 to continue to swing in reverse.
  • the first connecting rod 12 is in an unstraightened state, and the bottom mold base 5 does not move, forming a mold closing idle period for the bottom mold base 5, and the mold opening and closing mold base continues to close the mold until the wedge-shaped snap ring is completely snapped into the wedge-shaped ring In the slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

一种用于吹瓶机模架联动的连杆机构，底模模架（5）上设有楔形环槽，左模架（3）、右模架（4）上均设有楔形卡环；机架（2）上设有位于底模模架（5）下方的支架（10）；连杆机构包括设于机架（2）上的第二轴（6）、固设于第二轴（6）上的第一摆臂（7）、设于第二轴（6）和开合模模架之间的第一驱动机构、用于驱动第一摆臂（7）的凸轮机构、设于底模模架（5）和支架（10）之间的复位弹簧（11）、一端铰接在第一摆臂（7）上的第一连杆（12）、一端铰接在底模模架（5）上的第二连杆（13）、一端铰接在支架（10）上的且另一端分别与第一连杆（12）、第二连杆（13）铰接的第三连杆（14）；三条连杆中有且仅有一根从中断开并形成具有至少一个冗余自由度的连接机构；具有连接机构的连杆包含拉直和未拉直状态。解决了左模架（3）、右模架（4）打开伊始和临近闭合时底模模架（5）不可运动的难题。

Description

一种用于吹瓶机模架联动的连杆机构 技术领域
本发明涉及吹瓶机技术领域，特别涉及一种用于吹瓶机模架联动的连杆机构。
背景技术
吹瓶机是生产各种液体包(灌)装用塑料瓶的关键设备。通常，吹瓶机含在一平面内可开合摆动的左、右模架，左、右模架分别内置模具，通过开合模机构的带动，左、右模架摆动形成模架的开与合，与左、右模架摆动运动平面相垂直的另一平面内有一由进动机构控制的底模，当左、右模合模并接近闭合时，左、右模架内置模具的楔形卡环逐渐嵌入到进动到位的底模楔形环槽内，直至锁死并形成与所需加工产品(塑料瓶)外型一致的型腔。经加热工艺处理的瓶坯由送坯机构送至前述型腔内，经吹压、拉伸、冷却等工序，最终形成所需加工产品(塑料瓶)并经取瓶机构取走送入下道工序。吹瓶机各工序要求严格，相互配合要求高，尤其对模架与底模的同步性要求甚严。
现有技术中，按动力源传递划分，底模与模架运动形式有分离式与联动式两类。分离式底模运动控制机构由于与模架的开合模运动控制机构受设计、制造、安装等因素所限，两者运动的同步联动时有影响，机构的动力学特性欠佳，导致吹瓶机整机速度的提高受到限制。联动式底模运动控制机构动力源于开合模凸轮的转子臂，因此底模与模架运动有较好的一致性。由于开合模摆动运动的平面与底模运动平面相互垂直，故底模与模架的联动难以由平面机构实现。联动式主要有两类：一类是圆柱凸轮式(机构)；另一类是空间四杆与平面凸轮复合式(机构)。圆柱凸轮式结构单一、运动零部件少，但圆柱凸轮属空间凸轮，其柱面凸轮凸缘或沟槽轮廓的设 计、加工尤其是柱面凸轮中心的安装定位难度大，转子与凸轮轮廓间易卡死或只形成点接触，压应力大，磨损量偏大，尤其当底模动程较大时，受空间尺寸限制的圆柱凸轮廓面压力角将陡增，导致更严重的磨损；空间四连杆与平面凸轮复合式就凸轮廓线的设计、加工、安装较圆柱凸轮简单，但当空间四连杆机构受压时，其承载能力差的弱点将暴露无遗，直接影响吹瓶机整机的高速性能。
发明内容
本发明的目的是提供一种用于吹瓶机模架联动的连杆机构，解决了联动机构中，左模架和右模架打开伊始和临近闭合阶段底模模架不可运动的难题。
为达到上述目的，本发明采用的技术方案是：
一种用于吹瓶机模架联动的连杆机构，用于联动开合模模架和底模模架，所述开合模模架包括绕第一轴转动的设于机架上的左模架和右模架，所述底模模架沿固于所述机架上的底模导柱升降，所述底模模架上设有楔形环槽，所述左模架和所述右模架上均设有用于卡入所述楔形环槽中的楔形卡环；所述连杆机构包括绕自身轴心线方向转动的设于所述机架上的第二轴、一端固设于所述第二轴上的用于驱动所述第二轴转动的第一摆臂、设于所述第二轴和所述开合模模架之间的用于在所述第二轴转动时驱动所述左模架和所述右模架相互配合的转动开模或转动合模的第一驱动机构、用于驱动所述第一摆臂摆动的凸轮机构，所述机架上设有位于所述底模模架下方的支架；
所述连杆机构还包括第二驱动机构、设于所述底模模架和所述支架之间的用于提供驱动所述底模模架上升的弹性回复力的复位弹簧；
所述第二驱动机构包括一端铰接在所述第一摆臂上的第一连杆、一端铰接在所述底模模架上的第二连杆、一端铰接在所述支架上的第三连杆；所述第三连杆的另一端分别与所述第一连杆的另一端和所述第二连杆的另一端铰接；所述第一连杆、所述第二连杆、所述第三连 杆，三者中有且仅有一根连杆从中断开并形成具有至少一个冗余自由度的连接机构；
具有连接机构的连杆包括未拉直状态和拉直状态；
开模时，所述第一摆臂正向摆动：在所述楔形卡环脱离所述楔形环槽前，具有连接机构的连杆处于未拉直状态；在所述楔形卡环脱离所述楔形环槽后，具有连接机构的连杆处于拉直状态；
合模时，所述底模模架上升复位，在所述楔形卡环进入所述楔形环槽前，具有连接机构的连杆处于拉直状态；所述底模模架停止上升，所述第一摆臂继续反向摆动，在所述楔形卡环进入所述楔形环槽后，具有连接机构的连杆处于未拉直状态。
优选地，所述第一连杆、所述第二连杆、所述第三连杆，三者中有且仅有一根连杆从中断开至少一次，并在每个断开处均形成所述连接机构。
更优选地，所述连接机构为具有一个冗余自由度的铰接点。
更优选地，所述连接机构为具有至少一个冗余自由度的柔性连接件。
优选地，所述第一连杆从中断开形成前牵手和后牵手，所述前牵手和所述后牵手相互铰接。
优选地，所述底模模架合模到位时，所述第二连杆和所述第三连杆均沿竖直方向延伸。
更优选地，所述支架上还设有限位块，所述第三连杆沿竖直方向延伸时，所述限位块抵紧在所述第三连杆远离所述第一连杆的一侧。
优选地，所述第一驱动机构包括固定连接在所述第二轴上的第二摆臂、设于所述第二摆臂和所述开合模模架之间的开合模机构连杆。
优选地，所述凸轮机构包括设于所述第一摆臂上的凸轮转子、用于通过所述凸轮转子驱动所述第一摆臂的凸轮导轨。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点： 本发明一种用于吹瓶机模架联动的连杆机构，通过在一条连杆上设置具有至少一个冗余自由度的连接机构，不仅使得左模架和右模架在打开伊始阶段，连杆未拉直形成冗余量，无法带动底模模架联动，使楔形卡环和楔形环槽能够顺利脱开，之后连杆拉直，底模模架随着开模同步下降；还使得底模模架上升复位时，连杆拉直，带动左模架和右模架同步合模，并且在左模架和右模架临近闭合阶段，连杆折转形成冗余量，即继续合模时无法带动底模模架上升，使楔形卡环能够顺利嵌入楔形环槽中。
附图说明
附图1为本发明装置的结构示意图一；
附图2为本发明装置的结构示意图二；
附图3为本发明装置的原理示意图。
其中：1、第一轴；2、机架；3、左模架；4、右模架；5、底模模架；6、第二轴；7、第一摆臂；8、第二摆臂；9、开合模机构连杆；10、支架；11、复位弹簧；12、第一连杆；121、前牵手；122、后牵手；123、铰接点；13、第二连杆；14、第三连杆；15、限位块；16、凸轮转子；17底模导柱。
具体实施方式
下面结合附图来对本发明的技术方案作进一步的阐述。
参见图1-3所示，上述一种用于吹瓶机模架联动的连杆机构，用于联动开合模模架和底模模架5。
开合模模架包括绕第一轴1转动的设于机架2上的左模架3、绕第一轴1转动的设于机架2上的用于配合左模架3开模合模的右模架4；底模模架5沿固于机架2(支架10)上的底模导柱17升降。底模模架5上设有楔形环槽，左模架3和右模架4上均设有用于卡入楔形环槽中的楔形卡环。
上述一种用于吹瓶机模架联动的连杆机构包括绕自身轴心线方 向转动的设于机架2上的第二轴6、一端固设于第二轴6上的用于驱动第二轴6转动的第一摆臂7、设于第二轴6和开合模模架之间的用于在第二轴6转动时驱动左模架3和右模架4相互配合的转动开模或转动合模的第一驱动机构、用于驱动第一摆臂7摆动的凸轮机构，机架2上设有位于底模模架5下方的支架10，机架2与支架10一体成型。
在本实施例中，第一轴1和第二轴6均沿竖直方向延伸；第一驱动机构包括固定连接在第二轴6上的第二摆臂8、设于第二摆臂8和开合模模架之间的开合模机构连杆9；凸轮机构包括设于第一摆臂7上的凸轮转子16、用于通过凸轮转子16驱动第一摆臂7的凸轮导轨。
上述一种用于吹瓶机模架联动的连杆机构还包括第二驱动机构、设于底模模架5和支架10之间的用于提供驱动底模模架5上升的弹性回复力的复位弹簧11。
上述第二驱动机构包括一端铰接在第一摆臂7上的第一连杆12、一端铰接在底模模架5上的第二连杆13、一端铰接在支架10上的第三连杆14；第三连杆14的另一端分别与第一连杆12的另一端和第二连杆13的另一端铰接。第一连杆12、第二连杆13、第三连杆14，三者中有且仅有一根连杆从中断开至少一次并形成连接机构，该连接机构具有至少一个冗余自由度，每个断开处均形成一个连接机构。该连接机构可以是具有一个冗余自由度的铰接点123，也可以是具有至少一个冗余自由度的的柔性连接件。通过设置该具有至少一个冗余自由度的连接机构，使得具有连接机构的连杆包括未拉直状态和拉直状态。在本实施例中，第一连杆12从中断开形成前牵手121和后牵手122，前牵手121和后牵手122相互铰接。
开模时，第一摆臂7正向摆动，通过第一驱动机构带动开合模模架开模，在楔形卡环脱离楔形环槽前，具有连接机构的第一连杆12处于未拉直状态，底模模架5不动，形成针对底模模架5的开模空转期；在楔形卡环脱离楔形环槽后，具有连接机构的第一连杆12处于拉直状态，第一摆臂7继续正向摆动，开合模模架继续开模，联动底 模模架5同步下降；
合模时，底模模架5上升复位，在楔形卡环进入楔形环槽前，具有连接机构的第一连杆12处于拉直状态，联动第一摆臂7同步反向摆动，带动开合模模架同步合模；底模模架5停止上升，第一摆臂7继续反向摆动，在楔形卡环进入楔形环槽后，具有连接机构的第一连杆12处于未拉直状态，底模模架5不动，形成针对底模模架5的合模空转期，开合模模架继续合模，直至楔形卡环卡入楔形环槽。
底模模架5合模到位时，第二连杆13和第三连杆14均沿竖直方向延伸，通过调整第二连杆13或第三连杆14的长度可以调整底模模架5的合模高度。在本实施例中，支架10上还设有限位块15，第三连杆14沿竖直方向延伸时，限位块15抵紧在第三连杆14远离第一连杆12的一侧，即第一连杆12和限位块15位于第三连杆14相异的两侧。当第三连杆14与第二连杆13处于合模到位的位置时，易形成第三连杆14的过冲运动，设置限位块15能够限制其过冲运动。
底模模架5在机架2上的滑动构成滑动副，其它部件的连接都是铰链连接，构成转动副或球面副，因此，上述一种用于吹瓶机模架联动的连杆机构有低副机构通常具有的结构简单、制造容易、工作可靠、能承受较大负荷、传递较大动力等优点。
第一摆臂7、前牵手121、后牵手122、第三连杆14、支架10，五者构成空间五连杆机构。由第一摆臂7带动左模架3和右模架4逐渐张开，直至楔形卡环完全脱离楔形环槽前，该空间五连杆机构实质为空间四连杆机构，底模模架5不运动，形成针对底模模架5的开模空转期；由第一摆臂7带动左模架3和右模架4逐渐闭合，复位弹簧11带动底模模架5复位，自楔形卡环嵌入到合模到位的底模模架5上的楔形环槽内并锁定底模模架5始，该空间五连杆机构实质为空间四连杆机构，底模模架5不运动，形成针对底模模架5的合模空转期。巧妙地运用低副空间五连杆机构与低副空间四连杆机构之间的转换，解决了左模架3和右模架4打开伊始和临近闭合阶段底模模架5不可运动的难题。
以下具体阐述下本实施例的工作过程：
开模时，凸轮机构驱动第一摆臂7正向摆动，通过第一驱动机构带动开合模模架开模，在楔形卡环脱离楔形环槽前，具有连接机构的第一连杆12处于未拉直状态，底模模架5不动，形成针对底模模架5的开模空转期；在楔形卡环脱离楔形环槽后，具有连接机构的第一连杆12处于拉直状态，凸轮机构驱动第一摆臂7继续正向摆动，开合模模架继续开模，联动底模模架5同步下降；
合模时，复位弹簧11驱动底模模架5上升复位，在楔形卡环进入楔形环槽前，具有连接机构的第一连杆12处于拉直状态，联动第一摆臂7同步反向摆动，带动开合模模架同步合模；底模模架5合模到位后停止上升，凸轮机构驱动第一摆臂7继续反向摆动，在楔形卡环进入楔形环槽后，具有连接机构的第一连杆12处于未拉直状态，底模模架5不动，形成针对底模模架5的合模空转期，开合模模架继续合模，直至楔形卡环完全卡入楔形环槽中。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (9)

  1. 一种用于吹瓶机模架联动的连杆机构，用于联动开合模模架和底模模架，所述开合模模架包括绕第一轴转动的设于机架上的左模架和右模架，所述底模模架沿固于所述机架上的底模导柱升降，所述底模模架上设有楔形环槽，所述左模架和所述右模架上均设有用于卡入所述楔形环槽中的楔形卡环；所述连杆机构包括绕自身轴心线方向转动的设于所述机架上的第二轴、一端固设于所述第二轴上的用于驱动所述第二轴转动的第一摆臂、设于所述第二轴和所述开合模模架之间的用于在所述第二轴转动时驱动所述左模架和所述右模架相互配合的转动开模或转动合模的第一驱动机构、用于驱动所述第一摆臂摆动的凸轮机构，所述机架上设有位于所述底模模架下方的支架；其特征在于：
    所述连杆机构还包括第二驱动机构、设于所述底模模架和所述支架之间的用于提供驱动所述底模模架上升的弹性回复力的复位弹簧；
    所述第二驱动机构包括一端铰接在所述第一摆臂上的第一连杆、一端铰接在所述底模模架上的第二连杆、一端铰接在所述支架上的第三连杆；所述第三连杆的另一端分别与所述第一连杆的另一端和所述第二连杆的另一端铰接；所述第一连杆、所述第二连杆、所述第三连杆，三者中有且仅有一根连杆从中断开并形成具有至少一个冗余自由度的连接机构；
    具有连接机构的连杆包括未拉直状态和拉直状态；
    开模时，所述第一摆臂正向摆动：在所述楔形卡环脱离所述楔形环槽前，具有连接机构的连杆处于未拉直状态；在所述楔形卡环脱离所述楔形环槽后，具有连接机构的连杆处于拉直状态；
    合模时，所述底模模架上升复位，在所述楔形卡环进入所述楔形环槽前，具有连接机构的连杆处于拉直状态；所述底模模架停止上升，所述第一摆臂继续反向摆动，在所述楔形卡环进入所述楔形环槽后，具有连接机构的连杆处于未拉直状态。
  2. 根据权利要求1所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述第一连杆、所述第二连杆、所述第三连杆，三者中有且仅有一根连杆从中断开至少一次，并在每个断开处均形成所述连接机构。
  3. 根据权利要求1或2所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述连接机构为具有一个冗余自由度的铰接点。
  4. 根据权利要求1或2所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述连接机构为具有至少一个冗余自由度的柔性连接件。
  5. 根据权利要求1所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述第一连杆从中断开形成前牵手和后牵手，所述前牵手和所述后牵手相互铰接。
  6. 根据权利要求1所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述底模模架合模到位时，所述第二连杆和所述第三连杆均沿竖直方向延伸。
  7. 根据权利要求6所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述支架上还设有限位块，所述第三连杆沿竖直方向延伸时，所述限位块抵紧在所述第三连杆远离所述第一连杆的一侧。
  8. 根据权利要求1所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述第一驱动机构包括固定连接在所述第二轴上的第二摆臂、设于所述第二摆臂和所述开合模模架之间的开合模机构连杆。
  9. 根据权利要求1所述的一种用于吹瓶机模架联动的连杆机构，其特征在于：所述凸轮机构包括设于所述第一摆臂上的凸轮转子、用于通过所述凸轮转子驱动所述第一摆臂的凸轮导轨。
PCT/CN2019/087182 2018-11-15 2019-05-16 一种用于吹瓶机模架联动的连杆机构 WO2020098237A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811359009.6 2018-11-15
CN201811359009.6A CN109263023B (zh) 2018-11-15 2018-11-15 一种用于吹瓶机模架联动的连杆机构

Publications (1)

Publication Number Publication Date
WO2020098237A1 true WO2020098237A1 (zh) 2020-05-22

Family

ID=65189274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/087182 WO2020098237A1 (zh) 2018-11-15 2019-05-16 一种用于吹瓶机模架联动的连杆机构

Country Status (2)

Country Link
CN (1) CN109263023B (zh)
WO (1) WO2020098237A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115923093A (zh) * 2022-11-16 2023-04-07 佛山市南海功成塑料有限公司 一种塑料瓶吹塑成型生产设备和塑料瓶吹塑成型方法
WO2024120524A1 (zh) * 2022-12-08 2024-06-13 江苏新美星包装机械股份有限公司 用于驱动模架开合的装置、模架及吹瓶机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109263023B (zh) * 2018-11-15 2023-07-14 江苏新美星包装机械股份有限公司 一种用于吹瓶机模架联动的连杆机构
CN114030169A (zh) * 2021-12-19 2022-02-11 江苏辉河包装机械有限公司 一种限制扭力的模架摆臂机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102862285A (zh) * 2012-10-17 2013-01-09 广州达意隆包装机械股份有限公司 一种吹瓶机联动连杆机构
CN107962762A (zh) * 2017-12-01 2018-04-27 江苏新美星包装机械股份有限公司 一种吹瓶机开合模模架与底模模架的联动装置
CN107984729A (zh) * 2017-12-22 2018-05-04 全冠(福建)机械工业有限公司 一种底模单联动或双联动装置
CN108656502A (zh) * 2018-04-28 2018-10-16 苏州普洽吹瓶科技有限公司 一种底模联动装置
CN109263023A (zh) * 2018-11-15 2019-01-25 江苏新美星包装机械股份有限公司 一种用于吹瓶机模架联动的连杆机构
CN209063527U (zh) * 2018-11-15 2019-07-05 江苏新美星包装机械股份有限公司 一种用于吹瓶机模架联动的连杆机构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2841495B1 (fr) * 2002-06-27 2004-11-12 Sidel Sa Dispositif de moulage, par soufflage ou etirage-soufflage, de recipients en matiere thermoplastique
DE102010039803A1 (de) * 2010-08-26 2012-03-01 Krones Aktiengesellschaft Blasform
US9908278B2 (en) * 2014-07-07 2018-03-06 Chumpower Machinery Corp. Blow molding device for a rotary bottle blowing machine and a method for using the same
CN106217823B (zh) * 2016-08-30 2019-04-02 江苏维达机械有限公司 注吹机开合模升降同步机构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102862285A (zh) * 2012-10-17 2013-01-09 广州达意隆包装机械股份有限公司 一种吹瓶机联动连杆机构
CN107962762A (zh) * 2017-12-01 2018-04-27 江苏新美星包装机械股份有限公司 一种吹瓶机开合模模架与底模模架的联动装置
CN107984729A (zh) * 2017-12-22 2018-05-04 全冠(福建)机械工业有限公司 一种底模单联动或双联动装置
CN108656502A (zh) * 2018-04-28 2018-10-16 苏州普洽吹瓶科技有限公司 一种底模联动装置
CN109263023A (zh) * 2018-11-15 2019-01-25 江苏新美星包装机械股份有限公司 一种用于吹瓶机模架联动的连杆机构
CN209063527U (zh) * 2018-11-15 2019-07-05 江苏新美星包装机械股份有限公司 一种用于吹瓶机模架联动的连杆机构

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115923093A (zh) * 2022-11-16 2023-04-07 佛山市南海功成塑料有限公司 一种塑料瓶吹塑成型生产设备和塑料瓶吹塑成型方法
CN115923093B (zh) * 2022-11-16 2023-11-03 佛山市南海功成塑料有限公司 一种塑料瓶吹塑成型生产设备和塑料瓶吹塑成型方法
WO2024120524A1 (zh) * 2022-12-08 2024-06-13 江苏新美星包装机械股份有限公司 用于驱动模架开合的装置、模架及吹瓶机

Also Published As

Publication number Publication date
CN109263023B (zh) 2023-07-14
CN109263023A (zh) 2019-01-25

Similar Documents

Publication Publication Date Title
WO2020098237A1 (zh) 一种用于吹瓶机模架联动的连杆机构
US7241130B2 (en) Device for blow-molding or stretch blow molding of thermoplastic containers
US3334379A (en) Device for closing and locking molds of a machine for manufacturing plastic containers
EP3718741B1 (en) Openable/closable mold and base mold linkage device of bottle-blowing machine
WO2021068749A1 (zh) 吹瓶机开合模与底模联动的全连杆式组合连杆机构
CN101160200A (zh) 控制吹模开合的方法和用于实现所述方法的吹塑设备
RU2294829C2 (ru) Приводное устройство для пресс-формы, состоящей из двух шарнирно соединенных полуформ
CN113927878A (zh) 一种吹瓶机单开模和底模升降联动机构
CN112109309A (zh) 一种用于吹瓶机单开模的全连杆式底模升降机构
JPH04243919A (ja) モールド閉鎖機構
CN205148879U (zh) 吹塑成型机的单伺服电机开合模装置
CN111645303A (zh) 一种吹瓶机开合模与底模联动的组合连杆机构
CN209063527U (zh) 一种用于吹瓶机模架联动的连杆机构
JPS63116830A (ja) 回転式射出吹込成形機
CN214324149U (zh) 一种吹瓶机单开模机构
WO1997038846A1 (fr) Appareil d'etiquetage dans un moule
WO2022089322A1 (zh) 一种吹瓶机单开模机构
JPS6227333A (ja) インデイビジユアルセクシヨンタイプのガラス製品製造機に使用される移動機構
CN110406076B (zh) 一种用于吹瓶机模架的连杆式联动机构
CN112520981A (zh) 瓶状凸底玻璃制品生产装置
JP2000334820A (ja) 中空成形機の金型駆動方法及びその装置
CN209007918U (zh) 注塑模具及其脱模机构
CN112893675A (zh) 一种避免卡料的汽车零件用可自动顶料模具
CN111844695A (zh) 一种中空吹塑机的模具开合结构及中空吹塑机
CN212331801U (zh) 一种底模升降机构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19883637

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19883637

Country of ref document: EP

Kind code of ref document: A1