WO2014135108A1 - 吹灌封一体机 - Google Patents

吹灌封一体机 Download PDF

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Publication number
WO2014135108A1
WO2014135108A1 PCT/CN2014/073015 CN2014073015W WO2014135108A1 WO 2014135108 A1 WO2014135108 A1 WO 2014135108A1 CN 2014073015 W CN2014073015 W CN 2014073015W WO 2014135108 A1 WO2014135108 A1 WO 2014135108A1
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WO
WIPO (PCT)
Prior art keywords
mold
sealing
seat
sets
blow
Prior art date
Application number
PCT/CN2014/073015
Other languages
English (en)
French (fr)
Inventor
王业洲
詹文中
邓京良
刘焱宇
Original Assignee
楚天科技股份有限公司
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 楚天科技股份有限公司 filed Critical 楚天科技股份有限公司
Priority to BR112015021197-6A priority Critical patent/BR112015021197B1/pt
Priority to DE112014000406.5T priority patent/DE112014000406B4/de
Publication of WO2014135108A1 publication Critical patent/WO2014135108A1/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
    • 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
    • B65B3/022—Making containers by moulding of a thermoplastic material
    • 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
    • B65B3/003—Filling medical containers such as ampoules, vials, syringes or the like
    • 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
    • B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air

Definitions

  • the invention mainly relates to the field of pharmaceutical machinery, and particularly relates to a blow-filling and sealing machine. ⁇ Background technique ⁇
  • the blow-drying and sealing machine is generally used to form plastic ampoules or similar bottles, and the bottle is filled and sealed.
  • the blow-fill and seal machine mainly includes a loading system, an electric control system, a liquid filtering system, a screw extrusion system, a filling system, and a molding die device.
  • the parison head unit of the screw extrusion system is at the parison receiving station, and the filling head unit of the filling system is at the filling and sealing station.
  • the molding die device comprises a carriage and a mold set mounted on the carriage, each set of molds comprises a main mold and a sealing mold, and the carriage carries the mold set in the parison receiver
  • the line reciprocates linearly between the position and the filling and sealing station. After the mold set is taken at the parison receiving station, the blank is moved by the carriage to the filling and sealing station for blow molding, potting and sealing work, and the sealed bottle card is removed by other components. The carriage then returns to the parison receiving station with the mold set and repeats the above actions.
  • This type of blow-fill and seal machine has the following defects: 1. Since the mold is linearly reciprocated by the carriage, it is necessary to provide a longer space for the carriage movement, which improves the frame and clean area of the integrated machine. Manufacturing cost; 2. The mold set must complete a periodic work from the parison receiving station to the filling and sealing station before returning to the parison receiving station to start the next round of work, with long intermittent time and low production efficiency; Production efficiency can only increase the capacity of the mold set, and form a bottle card with more bottles in one time. Accordingly, the filling head also needs to set more filling needles, which will result in the manufacture of the mold set and the filling head. The cost is increased. [Summary of the Invention]
  • the technical problem to be solved by the present invention is that, in view of the deficiencies of the prior art, a blow-fill and seal integrated machine with small occupied space, low manufacturing cost, high production efficiency and high reliability is provided.
  • the present invention adopts the following technical solutions:
  • the utility model relates to a blow-filling and sealing machine, comprising a frame, a parison receiving station, a filling and sealing station, and a rotating seat capable of reciprocatingly swinging 180 degrees along the center of rotation, wherein the rotating seat is provided with two sets of mold sets
  • the two sets of mold sets are arranged at an angle of 180 degrees along the swinging circumferential direction of the rotary seat. During the swinging of the rotary seat, the two sets of mold sets alternately move to the parison receiving station and the filling and sealing station.
  • the frame of the integrated machine is provided for limiting the rotary seat when the rotary seat is swung to two swing limit positions Position limit mechanism.
  • the slewing seat is provided with two gear positions, and the two gear positions are arranged at an angle of 180 degrees along the swinging circumferential direction of the slewing seat, and the limiting mechanism is installed on the frame for cooperating with the gear portion.
  • Limit gears Limit gears.
  • the rotary seat is mounted on the frame of the integrated machine through a slewing bearing with an external gear; or the rotary seat is mounted on the frame of the integrated machine through a combination of a thrust bearing and a radial bearing, and is mounted on the rotary seat There is a driven gear; the frame is provided with a drive gear that meshes with the driven gear or the slewing external gear.
  • Each set of the mold sets includes a tube blank clamp, a seal mold, and a master mold that are sequentially arranged from top to bottom.
  • Each set of the mold set includes a sealing die, and the outer side of the rotary seat is provided with a driving mechanism for locking and opening the sealing die at the filling and sealing station, and the sealing die comprises two oppositely disposed sealing halves.
  • the driving mechanism includes a sealing die driving cylinder for driving the sealing die half near the outer side of the rotating seat to lock or open the corresponding sealing die.
  • Each set of the mold set includes a main mold
  • the main mold includes two main mold halves which are oppositely mounted on the swivel seat and movable on the swivel seat, and are used to drive the opening and closing of the two main mold halves.
  • the clamping mechanism includes a main mold driving cylinder and two sets of connecting rods connected to the driving end of the main mold driving cylinder, and each set of connecting rods is connected with one main mold half.
  • a parison head device for extruding the tube blank and a hot knife device for cutting the tube blank are disposed above the mold set.
  • a filling head device is disposed above the mold set.
  • the pipes and wires connecting the mold sets are taken out from the center of rotation of the turntable.
  • blow-fill and seal integrated machine of the present invention the two sets of molds are assembled on the rotary seat, and the rotary seat drives the revolving center to reciprocate, so that no large movement space is required, and the integrated machine frame and the clean area are reduced. Manufacturing cost;
  • the two sets of mold sets are alternately placed in the parison receiving station and the filling and sealing station, and the production efficiency is greatly improved under the premise of the same number of filling needles. ;
  • FIG. 1 is a schematic view showing the structure of a front view of the present invention.
  • Fig. 2 is a front elevational view showing the mounting structure of the swivel seat and the mold set (with the tube blank jig removed) in the present invention.
  • Figure 3 is a plan view showing the mounting structure of the swivel seat and the die set of the present invention.
  • Fig. 4 is a front elevational view showing the mounting structure of the swivel seat according to another embodiment of the present invention.
  • Figure 5 is a schematic enlarged view of the structure of Figure 2 in Figure 2.
  • Fig. 6 is a schematic enlarged view of the structure at B in Fig. 2.
  • the blow-fill and seal machine of the present invention comprises a loading system (not shown), an electric control system (not shown), a liquid filtering system 53, and a screw extrusion system 54.
  • the filling system 55, the blow molding and filling machine is provided with a parison receiving station 51 and a filling and sealing station 52.
  • the parison head device 56 of the screw extrusion system 54 is located at the parison receiving station 51, and the filling system 55
  • the filling head unit 57 is located at the filling and sealing station 52, and the parison receiving station 51 is further provided with a hot knife device 58 for cutting the tube blank.
  • the blow-drying and sealing machine further includes a rotary seat 1 which can reciprocate 180 degrees.
  • the rotary seat 1 is provided with two sets of mold sets, and the two sets of mold sets are arranged at an angle of 180 degrees along the swinging circumferential direction of the rotary seat 1.
  • the parison head unit 56, the hot knife unit 58 and the filling head unit 57 are both located above the mold set, and the pipes connecting the mold sets and the wires 59 are taken out from the center of rotation 11 of the turntable 1.
  • the two sets of mold sets alternately move to the parison receiving station 51 and the filling and sealing station 52, which greatly improves the production efficiency.
  • the swivel base 1 includes a turntable 13 and a mounting bracket 14 fixed to the turntable 13, and two sets of molds are assembled on the mounting bracket 14.
  • the frame 44 of the integrated machine is provided with a limiting mechanism for limiting the rotating base 1 when the rotating base 1 is swung to two swinging limit positions, so as to prevent the rotating base 1 from rotating too far, thereby ensuring work. reliability.
  • the swing seat 1 is provided with two gear positions 71.
  • the two gear positions 71 are fixed to the bottom of the swing seat 1 and are arranged at an angle of 180 degrees along the swinging circumferential direction of the swing seat 1, the positioning mechanism.
  • a gear member 72 is mounted on the frame 44 for engaging the gear portion 71 to limit the position. When the gear member 72 is engaged with any one of the gear portions 71, the two sets of mold sets are located at the parison receiving station 51 and the filling and sealing station 52, respectively.
  • the slewing seat 1 is mounted on the frame 44 of the integrated machine via a slewing bearing 41 with an external gear.
  • the frame 44 is provided with a drive gear 43 meshing with the external gear of the slewing bearing 41.
  • the drive gear 43 is driven by The motor component 42 drives the rotation.
  • the slewing seat 1 can also pass through a thrust bearing 45 and a radial bearing.
  • the combination of 46 is mounted on the frame 44 of the integrated machine.
  • the frame 44 is fixed with a bearing housing 48 for mounting the thrust bearing 45 and the radial bearing 46.
  • the rotating seat 1 is mounted with a driven gear that meshes with the driving gear 43. 47.
  • each set of mold sets includes a tube blank jig 91, a sealing die 21 and a main mold which are arranged in order from top to bottom.
  • a drive mechanism for locking and opening the sealing die 21 at the filling and sealing station 52 is provided on the outer side of the rotary base 1.
  • each of the sealing dies 21 includes two oppositely disposed sealing mold halves 22 which are arranged in the radial direction of the swivel circumference of the revolving seat 1.
  • the driving mechanism includes a sealing die driving cylinder 25, and when the sealing die 21 is driven by the rotating base 1 to the filling and sealing station 52, the sealing die driving cylinder 25 and the sealing die half 22 of the sealing die 21 near the outer side of the rotating base 1 Connecting, and pushing or pulling the sealing mold half 22 to move along the radial direction of the swivel seat 1 to achieve the locking or opening of the sealing die 21.
  • an arcuate guide groove 23 is provided on the sealing mold half 22 near the outer side of the slewing seat 1, and the guiding trajectory of the arcuate guide groove 23 is coaxial with the trajectory of the slewing seat 1.
  • the driving end of the sealing die drive cylinder 25 is provided with an arc-shaped push-pull block 26 which can be slidably engaged with the curved guide groove 23 with the rotation of the rotary seat 1, and the curved push-pull block 26 is slidably engaged with the curved guide groove 23, corresponding to
  • the sealing mold half 22 is in a connected state with the sealing die driving cylinder 25 and can be driven to move by the sealing die driving cylinder 25.
  • the curved guide groove 23 should be capable of restricting the curved push-pull block 26 in the arcuate guide groove 23 along the sealing die driving cylinder. 25 is moved in the telescopic direction, so the notch of the arcuate guide groove 23 should be placed upward or downward (set downward in this embodiment).
  • annular guide groove 27 coaxial with the rotation circumference of the rotary base 1 is disposed above the sealing die 21, and the sealing die half 22 of each sealing die 21 adjacent to the outer side of the rotary seat 1 is provided with the annular guide groove 27 Roller-fitted roller 24, when the roller 24 is in rolling engagement with the annular guide groove 27, the corresponding sealing die 21 is in an open state, and the annular guide groove 27 is provided on the annular guide groove 27 for the roller 24 to exit the ring guide when the sealing die 21 is locked The recess 27 of the slot 27 is avoided.
  • the sealing die 21 when the sealing die 21 is in the filling and sealing station 52, the curved guide groove 23 on the sealing die 21 is engaged with the curved push-pull block 26, and the roller 24 on the sealing die 21 The avoidance notch 28 of the annular guide groove 27 is aligned; at this time, the sealing mold half 22 of the sealing die 21 near the outer side of the rotary seat 1 can be moved by the sealing die driving cylinder 25 to realize the locking of the sealing die 21. And open the action.
  • the two sealing mold halves 22 of each sealing die 21 are connected by a linkage mechanism, and the sealing mold half 22 near the outer side of the swinging seat 1 is driven by the sealing die driving cylinder 25 to pass.
  • the linkage mechanism drives the other sealing mold half 22 to move synchronously in the opposite direction. SP, the two sealing mold halves 22 can be synchronized to each other or the same by the linkage mechanism
  • the steps are separated from each other to realize the locking and opening of the sealing die 21, and the two sealing die halves 22 are linked by the linkage mechanism, which is easy to ensure the accuracy of opening and closing of the sealing die 21, and is convenient for debugging.
  • the linkage mechanism includes two sets of swing rod groups, and the two sets of swing rod groups are symmetrically arranged at both ends of the seal mold half 22.
  • Each set of swing levers includes an intermediate swing lever 31, a first swing link 32, and a second swing link 33.
  • the middle portion of the intermediate swinging rod 31 is hinged to the rotating base 1
  • one end of the intermediate swinging rod 31 is hinged to one end of the first swinging rod 32
  • the other end of the intermediate swinging rod 31 is close to the second swinging rod 33.
  • the sealing mold halves 22 on the outer side of the slewing seat 1 are connected (wherein one end of the second swing rod 33 is hinged to the intermediate swing rod 31, and the other end of the second swing rod 33 is hinged to the sealing mold half 22 near the outer side of the slewing seat 1),
  • the other end of a swing rod 32 is hinged to the other seal mold half 22.
  • the linkage mechanism may also be a combination of other forms of multiple rods.
  • the seal half mold can be closed by articulating the second swing rod 33 therebetween.
  • the linear movement of 22 is smoothly converted into the arc swing of the intermediate swing lever 31.
  • the two sealing mold halves 22 of the sealing die 21 are mounted on the rail pair 8 which is arranged along the expansion and contraction direction of the sealing die driving cylinder 25.
  • a guide rail of the rail pair 8 corresponding to the sealing mold half 22 near the outer side of the swing base 1 is mounted on the lock template of the main mold half 61.
  • the main mold includes two main mold halves 61 which are oppositely mounted on the swivel base 1 and movable on the swivel mount 1, and are used to drive the two main mold halves 61. Opening and closing of the clamping mechanism.
  • the two main mold halves 61 are slidably disposed on the slide bar 12 of the swing base 1, and the slide bars 12 are horizontally arranged.
  • the clamping mechanism includes a main mold driving cylinder 62 and two sets of link groups connected to the driving end of the main mold driving cylinder 62.
  • the telescopic direction of the main mold driving cylinder 62 is perpendicular to the opening and closing direction of the main mold half 61, and the main body in this embodiment
  • the die drive cylinder 62 is a servo cylinder or a servo electric cylinder or a servo hydraulic cylinder.
  • the two sets of link sets are symmetrically arranged along the telescopic direction of the main die drive cylinder 62, and each set of link sets is connected to a main mold half 61.
  • the two sets of link sets are symmetrically arranged along the telescopic direction of the main die drive cylinder 62, when the main mode drive cylinder 62 is operated, the action trajectories of the two sets of link sets are also symmetrical, thereby driving the two main mold halves 61 to be close to each other or Synchronize away from each other to achieve clamping and mold opening.
  • each set of link sets includes a third swing link 64 and a link 65.
  • a middle portion of the third swing link 64 is hinged to the swing seat 1, and one end of the third swing link 64 is connected.
  • One end of the rod 65 is hinged, and the other end of the third swing rod 64 is connected to the corresponding main mold half 61 and can drive the main mold half 61 to move along the slide rod 12; the other end of the link 65 is hinged to the drive of the main mold drive cylinder 62.
  • the driving end of the main mold driving cylinder 62 is provided with a carrier block for articulating with the link 65.
  • the power of the main mold driving cylinder 62 is transmitted to the main mold half 61 by the cooperation of the third swing lever 64 and the link 65.
  • the linkage set can also be a multi-bar combination of other forms.
  • the other end of the swing lever is connected to the corresponding main mold half 61 through the slider 67, and the third swing rod 64 is hinged.
  • the corresponding main mold half 61 is provided with a chute 69 for mounting the slider 67 and for sliding the slider 67 in a direction perpendicular to the opening and closing direction of the main mold half 61.
  • the slider mounting seat 68 is fixed to the outer side of the main mold half 61, and the sliding groove 69 is formed between the slider mounting seat 68 and the main mold half 61.
  • the movement locus of the end portion of the third swing rod 64 is an arc when the third swing lever 64 is swung, by the above arrangement, the arc motion of the end portion of the third swing link 64 can be decomposed into the linear motion of the slider 67. Linear motion with the main mold half 61. In other embodiments, the above object can also be achieved by articulating a connecting rod between the third rocker 64 and the main mold half 61.
  • the main mold driving cylinder 62 is vertically disposed below the two main mold halves 61, and is fixed to the swivel seat 1 by its flange, and the third swing rod 64 and the connecting rod 65 are arranged in a vertical plane. Inside. This arrangement further reduces the occupation space of the entire main mold in the horizontal direction, and for the blow-drying and sealing machine, the overall length of the integrated machine can be shortened correspondingly, and the manufacturing cost of the frame 44 and the manufacturing cost of the clean area can be reduced. .
  • the telescopic rod 63 of the main mold driving cylinder 62 is retracted, and the lower ends of the two third swing rods 64 are respectively pulled to move toward each other by the two connecting rods 65, and the upper ends of the two third swinging rods 64 are moved away from each other. Further, the two sliders 67 are driven to pull the two main molds 61 away from each other to realize the split mode.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

一种吹灌封一体机，包括机架（44）、型坯接纳工位（51）、灌装封口工位（52）以及一可沿回转中心（11）作180度往复摆动的回转座（1），回转座（1）上装设有两组模具组，两组模具组沿回转座（1）的摆动圆周方向相差180度角布置，在回转座（1）摆动过程中，两组模具组交替运动至型坯接纳工位（51）和灌装封口工位（52）。该一体机具有占用空间小、制造成本低、生产效率高、可靠性高等优点。

Description

吹灌封一体机
【技术领域】
本发明主要涉及制药机械领域， 特指一种吹灌封一体机。 【背景技术】
在制药机械领域， 吹灌封一体机一般用来成型塑料安瓿瓶或类似瓶体， 并对瓶体进行 灌装封口。 吹灌封一体机主要包括上料***、 电控***、 液过滤***、 螺杆挤出***、 灌 装***以及成型模具装置。 螺杆挤出***的型坯头装置处于型坯接纳工位， 灌装***的灌 装头装置处于灌装封口工位。 现有的一种吹灌封一体机， 其成型模具装置包括滑架和装设 于滑架上的模具组， 每组模具组包括主模和封口模， 滑架带着模具组在型坯接纳工位与灌 装封口工位之间作直线式往复运动。 模具组在型坯接纳工位夹取管坯后， 由滑架带着移动 至灌装封口工位进行吹塑成型、 灌封和封口工作， 再通过其他部件将封口后的瓶卡取走， 然后滑架带着模具组又返回到型坯接纳工位， 重复上述动作。
这种形式的吹灌封一体机存在以下缺陷： 1、 由于模具由滑架带着作直线式往复运动， 故需提供较长的空间供滑架运动， 提高了一体机机架和洁净区域的制造成本； 2、 模具组 须完成从型坯接纳工位到灌装封口工位的一个周期性工作才返回型坯接纳工位开始下一 轮工作， 间歇时间长， 生产效率低； 若要提高生产效率， 只能增大模具组的容量， 一次性 成型具有更多瓶体的瓶卡， 相应地， 灌装头也需要设置更多的灌针， 这样就会造成模具组 和灌装头制造成本的提高。 【发明内容】
本发明要解决的技术问题在于： 针对现有技术存在的不足， 提供一种占用空间小、 制 造成本低、 生产效率高、 可靠性高的吹灌封一体机。
为解决上述技术问题， 本发明采用以下技术方案：
一种吹灌封一体机， 包括机架、 型坯接纳工位、 灌装封口工位、 以及一可沿回转中心 作 180度往复摆动的回转座， 所述回转座上装设有两组模具组， 两组模具组沿回转座的摆 动圆周方向相差 180度角布置， 在回转座摆动过程中， 两组模具组交替运动至型坯接纳工 位和灌装封口工位。
作为本发明的进一步改进：
所述一体机的机架上设有用来在回转座摆动至两个摆动极限位置时对回转座进行限 位的限位机构。
所述回转座上装设有两个挡位部， 两个挡位部沿回转座的摆动圆周方向相差 180度角 布置， 所述限位机构包括装设于机架上用来与挡位部配合限位的挡位件。
所述回转座通过一带有外齿轮的回转支承安装于一体机的机架上； 或者， 所述回转座 通过推力轴承和径向轴承的组合安装于一体机的机架上， 且回转座上安装有从动齿轮； 所 述机架上装设有与从动齿轮或回转支承的外齿轮啮合传动的驱动齿轮。
每组所述模具组包括由上至下顺序布置的管坯夹具、 封口模和主模。
每组所述模具组包括封口模， 所述回转座的外侧设有用来对处于灌装封口工位的封口 模进行锁合和打开的驱动机构， 所述封口模包括两个相对布置的封口半模， 所述驱动机构 包括用来驱动靠近回转座外侧的封口半模移动使对应的封口模锁合或打开的封口模驱动 缸。
每组所述模具组包括主模， 所述主模包括呈相对状装设于回转座上并可在回转座上移 动的两个主半模、 以及用来带动两个主半模开合的锁模机构， 所述锁模机构包括主模驱动 缸和连接于主模驱动缸驱动端的两组连杆组， 每组连杆组对应连接一个主半模。
在所述型坯接纳工位，所述模具组的上方设有用以挤出管坯的型坯头装置与用以切断 管坯的热切刀装置。
在所述灌装封口工位， 所述模具组的上方设有灌装头装置。
连接所述模具组的管道、 电线从回转座的回转中心引出。
与现有技术相比， 本发明的优点在于：
1、 本发明的吹灌封一体机， 两组模具组装设于回转座上， 由回转座带动绕回转中心 作往复摆动， 故不需要很大的运动空间， 降低了一体机机架和洁净区域的制造成本；
2、 本发明的吹灌封一体机， 在回转座摆动过程中， 两组模具组交替处于型坯接纳工 位和灌装封口工位， 在灌针数量不变的前提下， 生产效率大大提高；
3、 本发明的吹灌封一体机， 由于回转座只作 180 度往复摆动， 而非单向循环转动， 因此连接模具组的管道、 电线可均从回转座的中心引出， 不需要设置旋转接头、 电刷等结 构， 可靠性高。
【附图说明】
图 1为本发明的主视结构示意图。
图 2为本发明中回转座和模具组 （去掉管坯夹具） 的安装结构主视图。
图 3为本发明中回转座和模具组的安装结构俯视图。
图 4为本发明另一实施例的回转座安装结构主视图。 图 5为图 2中 A处的放大结构示意图。
图 6为图 2中 B处的放大结构示意图。
附图说明： 1、 回转座； 11、 回转中心； 12、 滑杆； 13、 转盘； 14、 安装架； 21、 封 口模； 22、 封口半模； 23、 弧形导槽； 24、 滚子； 25、 封口模驱动缸； 26、 弧形推拉块； 27、 环形导槽； 28、 避让缺口； 31、 中间摆杆； 32、 第一摆杆； 33、 第二摆杆； 41、 回转 支承； 42、 电机部件； 43、 驱动齿轮； 44、 机架； 45、 推力轴承； 46、 径向轴承； 47、 从 动齿轮； 48、 轴承座； 51、 型坯接纳工位； 52、 灌装封口工位； 53、 液过滤***； 54、 螺 杆挤出***； 55、 灌装***； 56、 型坯头装置； 57、 灌装头装置； 58、 热切刀装置； 59、 电线； 61、 主半模； 62、 主模驱动缸； 63、 伸缩杆； 64、 第三摆杆； 65、 连杆； 67、 滑块； 68、 滑块安装座； 69、 滑槽； 71、 挡位部； 72、 挡位件； 8、 导轨副； 91、 管坯夹具。
【具体实施方式】
以下结合附图和具体实施例对本发明作进一步详细说明。
如图 1、 图 2、 图 3所示， 本发明的吹灌封一体机， 包括上料*** （图未示）、 电控系 统 （图未示）、 液过滤*** 53、 螺杆挤出*** 54和灌装*** 55， 吹灌封一体机上设有型 坯接纳工位 51和灌装封口工位 52， 螺杆挤出*** 54的型坯头装置 56位于型坯接纳工位 51， 灌装*** 55的灌装头装置 57位于灌装封口工位 52， 型坯接纳工位 51还设有用于切 断管坯的热切刀装置 58。 吹灌封一体机还包括一可作 180度往复摆动的回转座 1， 回转座 1上装设有两组模具组， 两组模具组沿回转座 1的摆动圆周方向相差 180度角布置。 型坯 头装置 56、 热切刀装置 58和灌装头装置 57均位于模具组的上方， 连接模具组的管道、 电 线 59从回转座 1的回转中心 11引出。 在回转座 1摆动过程中， 两组模具组交替运动至型 坯接纳工位 51和灌装封口工位 52， 大大提高了生产效率。 本实施例中， 回转座 1包括转 盘 13以及固定于转盘 13上的安装架 14， 两组模具组装设于安装架 14上。
本实施例中， 一体机的机架 44上设有用来在回转座 1摆动至两个摆动极限位置时对 回转座 1进行限位的限位机构， 以避免回转座 1转动过头， 从而保证工作可靠性。
本实施例中， 回转座 1上装设有两个挡位部 71， 两个挡位部 71固定于回转座 1的底 部， 并沿着回转座 1的摆动圆周方向相差 180度角布置， 定位机构包括装设于机架 44上 用来与挡位部 71配合限位的挡位件 72。 挡位件 72与任意一个挡位部 71配合时， 两组模 具组刚好分别处于型坯接纳工位 51和灌装封口工位 52。
本实施中， 回转座 1通过一带有外齿轮的回转支承 41安装于一体机的机架 44上， 机 架 44上装设有与回转支承 41的外齿轮啮合传动的驱动齿轮 43， 驱动齿轮 43由电机部件 42带动旋转。 如图 4所示， 在其他实施例中， 回转座 1还可通过推力轴承 45和径向轴承 46的组合安装于一体机的机架 44上， 机架 44上固定有用来安装推力轴承 45和径向轴承 46的轴承座 48， 回转座 1上安装有与驱动齿轮 43啮合传动的从动齿轮 47。
本实施例中， 每组模具组包括由上至下顺序布置的管坯夹具 91、 封口模 21和主模。 回转座 1的外侧设有一用来对处于灌装封口工位 52的封口模 21进行锁合和打开的驱动机 构。
本实施例中， 每个封口模 21包括两个相对布置的封口半模 22， 两个封口半模 22沿回 转座 1回转圆周的径向排列。 驱动机构包括封口模驱动缸 25， 当封口模 21由回转座 1带 动运动至灌装封口工位 52时， 封口模驱动缸 25能够与该封口模 21中靠近回转座 1外侧 的封口半模 22连接， 并推动或拉动该封口半模 22沿着回转座 1回转圆周的径向移动， 实 现封口模 21的锁合或打开。
本实施例中， 靠近回转座 1外侧的封口半模 22上设有一弧形导槽 23， 弧形导槽 23的 导向轨迹与回转座 1的回转轨迹同轴。 封口模驱动缸 25的驱动端装设有可随回转座 1的 转动与弧形导槽 23滑动配合的弧形推拉块 26，弧形推拉块 26与弧形导槽 23滑动配合时， 对应的封口半模 22与封口模驱动缸 25处于连接状态并可由封口模驱动缸 25驱动移动。 为使弧形推拉块 26能够在弧形导槽 23中对封口半模 22施加推力和拉力， 弧形导槽 23应 能够限制弧形推拉块 26在弧形导槽 23中沿封口模驱动缸 25伸缩方向运动， 所以弧形导 槽 23的槽口应朝上或朝下设置 （本实施例中设置为朝下）。
本实施例中， 封口模 21的上方设有与回转座 1回转圆周同轴的环形导槽 27， 各封口 模 21中靠近回转座 1外侧的封口半模 22上设有用来与环形导槽 27滚动配合的滚子 24， 滚子 24与环形导槽 27滚动配合时， 对应的封口模 21处于打开状态， 环形导槽 27上设有 可在封口模 21锁合时供滚子 24退出环形导槽 27的避让缺口 28。
如图 2、 图 6所示， 当封口模 21处于灌装封口工位 52时， 该封口模 21上的弧形导槽 23与弧形推拉块 26配合， 该封口模 21上的滚子 24正好对准环形导槽 27的避让缺口 28 ; 此时， 该封口模 21中靠近回转座 1外侧的封口半模 22便可在封口模驱动缸 25的驱动下 移动， 实现封口模 21的锁合和打开动作。
如图 2、 图 5所示， 当封口模 21离开灌装封口工位 52时， 该封口模 21上的弧形导槽 23与弧形推拉块 26分离， 该封口模 21上的滚子 24处于环形导槽 27内， 该封口模 21处 于打开状态。
如图 3所示， 本实施例中， 每个封口模 21的两个封口半模 22通过一联动机构相连， 靠近回转座 1外侧的封口半模 22由封口模驱动缸 25驱动移动时， 通过联动机构带动另一 个封口半模 22反方向同步移动。 SP， 两个封口半模 22可通过联动机构同步相互靠近或同 步相互远离，从而实现封口模 21的锁合与打开，两个封口半模 22通过联动机构实现联动， 易于保证封口模 21开合的精准性， 便于调试。
本实施例中， 联动机构包括两组摆杆组， 两组摆杆组对称布置于封口半模 22的两端。 每组摆杆组包括中间摆杆 31、 第一摆杆 32和第二摆杆 33。 各摆杆组中， 中间摆杆 31的 中部铰接于回转座 1上， 中间摆杆 31的一端与第一摆杆 32的一端铰接， 中间摆杆 31的 另一端通过第二摆杆 33与靠近回转座 1外侧的封口半模 22相连 （其中， 第二摆杆 33的 一端与中间摆杆 31铰接，第二摆杆 33的另一端铰接于靠近回转座 1外侧的封口半模 22)， 第一摆杆 32的另一端铰接于另一个封口半模 22上。 当然， 在其他实施例中， 为了实现两 个封口半模 22同步相互靠近或同步相互远离， 联动机构也可为其他形式的多杆件组合。
由于中间摆杆 31摆动时中间摆杆 31端部的运动轨迹为弧线， 而封口半模 22的运动 轨迹为直线， 通过在两者之间铰接第二摆杆 33， 就可将封口半模 22的直线移动顺利地转 化为中间摆杆 31的弧线摆动。
如图 2、 图 3所示， 本实施例中， 封口模 21中的两个封口半模 22均装设于沿封口模 驱动缸 25伸缩方向布置的导轨副 8上。 与靠近回转座 1外侧的封口半模 22对应的导轨副 8的导轨安装在主半模 61的锁模板上。
如图 2所示， 本实施例中， 主模包括呈相对状装设于回转座 1上并可在回转座 1上移 动的两个主半模 61、 以及用来带动两个主半模 61开合的锁模机构。 本实施例中， 两个主 半模 61滑设于回转座 1的滑杆 12上， 滑杆 12水平布置。 锁模机构包括主模驱动缸 62和 连接于主模驱动缸 62驱动端的两组连杆组， 主模驱动缸 62的伸缩方向与主半模 61的开 合方向垂直， 本实施例中的主模驱动缸 62 为伺服气缸或伺服电动缸或伺服液压缸。 两组 连杆组沿主模驱动缸 62的伸缩方向对称布置， 每组连杆组对应连接一个主半模 61。 由于 两组连杆组沿主模驱动缸 62的伸缩方向对称布置， 当主模驱动缸 62工作时， 两组连杆组 的动作轨迹也呈对称， 从而带动两个主半模 61 同步相互靠近或同步相互远离， 实现合模 与开模。
本实施例中， 每组连杆组包括第三摆杆 64和连杆 65; 各连杆组中， 第三摆杆 64的中 部铰接于回转座 1上， 第三摆杆 64的一端与连杆 65的一端铰接， 第三摆杆 64的另一端 与对应的主半模 61相连并可带动主半模 61沿滑杆 12移动； 连杆 65的另一端铰接于主模 驱动缸 62的驱动端 （即伸缩杆 63 ) 上， 主模驱动缸 62的驱动端设有用来与连杆 65铰接 的承载块。 通过第三摆杆 64和连杆 65的共同作用将主模驱动缸 62的动力传递给主半模 61。 在其他实施例中， 连杆组也可为其他形式的多杆件组合。
本实施例中， 摆杆的另一端通过滑块 67与对应的主半模 61相连， 第三摆杆 64铰接 于滑块 67上，对应的主半模 61上设有用于安装滑块 67并可供滑块 67沿垂直于主半模 61 开合方向滑动的滑槽 69。 本实施例中， 主半模 61的外侧固定有滑块安装座 68， 滑块安装 座 68与主半模 61之间形成滑槽 69。由于第三摆杆 64摆动时第三摆杆 64端部的运动轨迹 为弧线， 通过上述这种设置， 就可将第三摆杆 64端部的弧线运动分解为滑块 67的直线运 动和主半模 61的直线运动。 在其他实施例中， 也可通过在第三摆杆 64与主半模 61之间 铰接一连接杆来达到上述目的。
本实施例中， 主模驱动缸 62竖直布置于两个主半模 61的下方， 并通过其法兰固定于 回转座 1上， 第三摆杆 64和连杆 65则布置于竖直平面内。 这种设置进一步减小了整个主 模在水平方向上的占用空间，对于吹灌封一体机来说，则可相应地缩短一体机的整体长度， 降低机架 44制造成本和洁净区域的制造成本。
主模的工作过程： 合模时， 主模驱动缸 62的伸缩杆 63伸出， 通过两连杆 65分别推 动两第三摆杆 64的下端作相互背离运动， 两第三摆杆 64的上端则作相互靠近运动， 进而 带动两滑块 67推动两主半模 61相互靠拢， 实现合模。 分模时， 主模驱动缸 62的伸缩杆 63缩回， 通过两连杆 65分别拉动两第三摆杆 64的下端作相互靠近运动， 两第三摆杆 64 的上端则作相互背离运动， 进而带动两滑块 67拉动两主半模 61相互远离， 实现分模。
以上仅是本发明的优选实施方式， 本发明的保护范围并不仅局限于上述实施例， 凡属 于本发明思路下的技术方案均属于本发明的保护范围。 应当指出， 对于本技术领域的普通 技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，应视为本发明的保护范围。

Claims

权 利 要 求
1、 一种吹灌封一体机， 包括机架 （44)、 型坯接纳工位 （51) 和灌装封口工位 （52)， 其特征在于： 还包括一可沿回转中心 （11) 作 180度往复摆动的回转座 （1)， 所述回转座 (1)上装设有两组模具组， 两组模具组沿回转座（1)的摆动圆周方向相差 180度角布置， 在回转座 （1) 摆动过程中， 两组模具组交替运动至型坯接纳工位 （51) 和灌装封口工位 (52)。
2、 根据权利要求 1所述的吹灌封一体机， 其特征在于： 所述机架（44)上设有用来在 回转座 （1) 摆动至两个摆动极限位置时对回转座 （1) 进行限位的限位机构。
3、 根据权利要求 2所述的吹灌封一体机， 其特征在于： 所述回转座 （1) 上装设有两 个挡位部 （71)， 两个挡位部 （71) 沿回转座 （1) 的摆动圆周方向相差 180度角布置， 所 述限位机构包括装设于机架 （44) 上用来与挡位部 （71) 配合限位的挡位件 （72)。
4、 根据权利要求 1或 2或 3所述的吹灌封一体机， 其特征在于： 所述回转座 （1) 通 过一带有外齿轮的回转支承 （41) 安装于一体机的机架 （44) 上； 或者， 所述回转座 （1) 通过推力轴承（45)和径向轴承（46)的组合安装于一体机的机架（44)上， 且回转座（1) 上安装有从动齿轮 （47); 所述机架 （44) 上装设有与从动齿轮 （47) 或回转支承 （41) 的外齿轮啮合传动的驱动齿轮 （43)。
5、根据权利要求 1或 2或 3所述的吹灌封一体机， 其特征在于： 每组所述模具组包括 由上至下顺序布置的管坯夹具 （91)、 封口模 （21) 和主模。
6、根据权利要求 1或 2或 3所述的吹灌封一体机， 其特征在于： 每组所述模具组包括 封口模（21)，所述回转座（1)的外侧设有一用来对处于灌装封口工位（52)的封口模（21) 进行锁合和打开的驱动机构， 所述封口模 （21) 包括两个相对布置的封口半模 （22)， 所 述驱动机构包括用来驱动靠近回转座（1)外侧的封口半模（22)移动使对应的封口模（21) 锁合或打开的封口模驱动缸 （25)。
7、根据权利要求 1或 2或 3所述的吹灌封一体机， 其特征在于： 每组所述模具组包括 主模， 所述主模包括呈相对状装设于回转座 （1) 上并可在回转座 （1) 上移动的两个主半 模 （61)、 以及用来带动两个主半模 （61) 开合的锁模机构， 所述锁模机构包括主模驱动 缸 （62) 和连接于主模驱动缸 （62) 驱动端的两组连杆组， 每组连杆组对应连接一个主半 模 （61)。
8、根据权利要求 1或 2或 3所述的吹灌封一体机， 其特征在于： 在所述型坯接纳工位 (51) ，所述模具组的上方设有用以挤出管坯的型坯头装置 （56) 与用以切断管坯的热切 刀装置 （58)。
9、根据权利要求 1或 2或 3所述的吹灌封一体机， 其特征在于： 在所述灌装封口工位
(52)， 所述模具组的上方设有灌装头装置 （57)。
10、 根据权利要求 1或 2或 3所述的吹灌封一体机， 其特征在于： 连接所述模具组的 管道、 电线 （59) 从回转座 （1) 的回转中心 （11) 引出。
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