WO2021233274A1 - 一种用于瓶盖的夹持装置 - Google Patents

一种用于瓶盖的夹持装置 Download PDF

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Publication number
WO2021233274A1
WO2021233274A1 PCT/CN2021/094273 CN2021094273W WO2021233274A1 WO 2021233274 A1 WO2021233274 A1 WO 2021233274A1 CN 2021094273 W CN2021094273 W CN 2021094273W WO 2021233274 A1 WO2021233274 A1 WO 2021233274A1
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WIPO (PCT)
Prior art keywords
clamping
seat
groove
inner cavity
cylindrical
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PCT/CN2021/094273
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English (en)
French (fr)
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沈军
赵斌
钱飞虎
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江苏新美星包装机械股份有限公司
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Publication of WO2021233274A1 publication Critical patent/WO2021233274A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/0033—Gripping heads and other end effectors with gripping surfaces having special shapes
    • B25J15/0038—Cylindrical gripping surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/08—Gripping heads and other end effectors having finger members

Definitions

  • the invention relates to the technical field of caps, in particular to a clamping device for bottle caps.
  • lids of various irregular shapes are often encountered, such as top bevels, spherical surfaces, patterns, etc. It is difficult to grasp the lid, which seriously affects the sealing efficiency.
  • the purpose of the present invention is to provide a clamping device for bottle caps, which can be suitable for clamping and sealing caps of different shapes, fast clamping and stable clamping, and high cap sealing efficiency.
  • a clamping device for bottle caps which is characterized in that it comprises a mounting seat with a cylindrical inner cavity, a sliding seat slidable up and down through the cylindrical inner cavity, and the cylindrical inner cavity is The sliding direction of the sliding seat penetrates the mounting seat, and the lower end opening of the cylindrical inner cavity is used for receiving a bottle cap;
  • the device further includes second grooves arranged in the mounting seat at intervals along the circumferential direction, and the second grooves communicate with the cylindrical cavity;
  • the device also includes a clamping jaw disposed in the second groove that is rotatable relative to the mounting seat. There are at least two clamping jaws for clamping the bottle cap in cooperation with each other.
  • the device also includes a ring An elastic hoop arranged on the outside of at least two of the clamping jaws and used for driving the clamping jaws to rotate to the cylindrical cavity synchronously;
  • the sliding seat is used for driving the clamping jaws to synchronously rotate in a direction away from the cylindrical inner cavity.
  • the clamping jaw includes a tightened state and an opened state
  • the sliding seat is located at the upper part of the cylindrical cavity, and the elastic force of the elastic hoop makes at least part of the clamping jaws remain in the cylindrical cavity , To clamp the bottle cap;
  • the device further includes first grooves arranged in the mounting seat at intervals along the circumferential direction, and the first grooves are in communication with the cylindrical inner cavity; the device further includes an elastic mechanism;
  • the elastic mechanism also includes a spring seat with one end connected to the side surface of the mounting seat, a spring cover provided on the other end of the spring seat, and a spring seat that can extend and retract along the length of the spring seat.
  • the cover and the guide shaft in the first groove, a limit ring arranged on the guide shaft, a spring sleeved on the guide shaft and located between the spring cover and the limit ring The two ends of the guide shaft respectively penetrate the spring seat and the spring cover, and the other end of the connecting rod is rotatably connected to the end of the guide shaft that penetrates the first groove.
  • first grooves and the second grooves respectively, which are arranged alternately and arranged in the mounting seat at even intervals.
  • both the first groove and the second groove penetrate the mounting seat along the sliding direction of the sliding seat.
  • both the first groove and the second groove extend in the radial direction of the cylindrical inner cavity.
  • the sliding seat includes a protrusion protruding from the outer periphery of the sliding seat and passing through the first groove, and one end of the connecting rod is rotatably connected to the protrusion.
  • the clamping jaw is rotatably connected to the second groove through its upper end, and the elastic hoop is arranged outside the lower end of the clamping jaw.
  • the sliding seat includes a cylindrical upper end, a tapered lower end connected below the cylindrical upper end and tapered downward, and the inner upper part of the clamping jaw is provided with abutment for cooperation.
  • the device further includes a mounting ring provided on the top of the mounting seat for cooperating installation.
  • the present invention has the following advantages compared with the prior art:
  • the present invention is a clamping device for bottle caps.
  • the clamping jaws are opened by rotating under the action of the sliding seat and the elastic hoop.
  • the switch between the state and the tightened state can be applied to bottle caps of different outer diameters and different shapes.
  • the elastic mechanism exerts a radial elastic pressing force on the sliding seat, so that the jaws can be stably maintained in the open state and
  • the tightening state of different angles ensures stable clamping and high sealing efficiency.
  • Figure 1 is a cross-sectional view of the device of the present invention (the jaws are in a tightened state);
  • Figure 2 is a structural schematic diagram 1 of the device of the present invention.
  • Figure 3 is a second structural diagram of the device of the present invention.
  • Figure 4 is a schematic diagram of the structure of the mounting seat
  • Figure 5 is a cross-sectional view of the device of the present invention (the jaws are in an open state).
  • a clamping device for bottle caps which is connected to the lower end of the capping base 1.
  • the capping base 1 is provided with a top rod 2 which can move up and down relative to it.
  • the top rod 2 slides through.
  • the device includes a mounting base 3 with a cylindrical inner cavity, and a mounting ring 15 arranged at the top of the mounting base 3 to cooperate with the cover base 1 for installation.
  • the cylindrical inner cavity is cylindrical
  • the mounting ring 15 is ring-shaped.
  • the ejector pin 2 and the mounting ring 15 are arranged coaxially with the cylindrical cavity, and the ejector pin 2 can pass through the central through hole of the mounting ring 15 into the cylindrical cavity.
  • the outer periphery of the mounting ring 15 is provided with external threads, which can be threaded internally into the capping seat 1 with internal threads.
  • the above-mentioned clamping device for bottle caps also includes a sliding seat 4 that can slide up and down and penetrates through a cylindrical inner cavity.
  • the sliding seat 4 includes a cylindrical upper end 41, a tapered lower end 42 connected below the cylindrical upper end 41 and tapered downward, the cylindrical upper end 41 is cylindrical, and the tapered lower end 42 is a cone.
  • the cylindrical upper end 41 abuts against the mounting seat 3 to guide the up and down sliding of the sliding seat 4;
  • the sliding seat 4 also includes a blind hole 44 which is provided in the cylindrical upper end 41 and opens upward, and the ejector rod 2 Push down into the blind hole 44.
  • the inner periphery of the mounting seat 3 is protrudingly provided with a limiting convex ring 19 for limiting the upper end of the sliding seat 4, and the limiting convex ring 19 is used to prevent the sliding seat 4 from sliding upwards out of the mounting seat 3.
  • the above-mentioned clamping device for bottle caps further includes a first groove 5 and a second groove 6 arranged in the mounting seat 3 at intervals along the circumferential direction, the first groove 5 and the second groove 6 are connected with the cylindrical cavity.
  • the groove walls on both sides of the second groove 6 are provided with first mounting holes 21 for penetrating the third pin 18, and the second groove 6 is provided with a concave recess 22 on one side of the groove wall.
  • the first mounting hole 21 penetrates through the groove wall and communicates with the recessed portion 22, and the third pin shaft 18 passes through the first mounting hole 21 on this side and enters the recessed portion 22, and is sleeved by a fixing nut 23 located in the recessed portion 22 And fix the third pin shaft 18.
  • the outer end surface of the first groove 5 is a flat surface, and a second mounting hole 24 is provided on the flat surface for mounting the spring seat 10. Specifically, through the mounting member 25 sleeved on the spring seat 10 and the fixing bolt 26 passing through the mounting member 25 and the second mounting hole 24, the spring seat 10 is fixed outside the first groove 5 through the mounting member 25 End face.
  • first grooves 5 and three second grooves 6, which are arranged in the mounting seat 3 alternately and evenly spaced. Both the first groove 5 and the second groove 6 penetrate the mounting seat 3 along the sliding direction of the sliding seat 4 (ie, the up-and-down direction).
  • the first groove 5 and the second groove 6 both extend along the radial direction of the cylindrical cavity and communicate with the cylindrical cavity in the radial direction.
  • the three first grooves 5 form an angle of 120° with each other in pairs, and the three second grooves 6 form an angle of 120° with each other.
  • the second groove 6 and the two adjacent first grooves 5 respectively form an included angle of 60°.
  • the above-mentioned clamping device for bottle caps also includes an elastic mechanism provided on the mounting seat 3.
  • the elastic mechanism includes a right end provided in the first groove 5 (see Figure 1 , The right in FIG. 1 is the right here)
  • the connecting rod 7 connected to the sliding seat 4 is rotated by the first pin 16.
  • the elastic mechanism is used to apply a radial elastic abutment force to the sliding seat 4 through the connecting rod 7.
  • the elastic mechanism further includes a spring seat 10 connected to the side of the mounting seat 3 at its right end, a spring cover 11 covering the left end of the spring seat 10, a spring seat 10 that can extend and retract along its length, and a spring
  • the left end of the above-mentioned connecting rod 7 is rotatably connected to the right end of the guide shaft 12 through the second pin shaft 17.
  • the second pin shaft 17 and the first pin shaft 16 are parallel to each other and parallel to the horizontal plane, and perpendicular to the first groove 5.
  • the sliding seat 4 includes a protruding portion 43 protruding from its outer periphery and passing through the first groove 5.
  • the right end of the connecting rod 7 is rotatably connected to the protruding portion through a first pin 16 43 on.
  • the protruding portion 43 is protrudingly provided on the side of the cylindrical upper end portion 41.
  • the above-mentioned clamping device for bottle caps further includes a clamping jaw 8 arranged in the second groove 6 that can rotate about a third pin 18 relative to the mounting seat 3, and a third pin 18 is parallel to the horizontal plane and perpendicular to the second groove 6.
  • the clamping jaw 8 is used to abut the sliding seat 4 through its inner side.
  • the device also includes an elastic hoop 9 arranged around the outside of the three jaws 8.
  • the elastic hoop 9 provides a drive for the three jaws 8 to clamp inward. Tighten the clamping force of the cap 20.
  • the three clamping jaws 8 are arranged in the three second grooves 6 in one-to-one correspondence. According to the shape of the bottle cap 20, the inner surface of the clamping jaw 8 is provided with corresponding concave-convex lines to better clamp the bottle cap 20.
  • the clamping jaw 8 is rotatably connected to the second groove 6 through its upper end, and an elastic band 9 is arranged around the outside of the lower end of the clamping jaw 8.
  • the lower end of the clamping jaw 8 is located below the mounting seat 3, and the outer side of the lower end of the clamping jaw 8 is provided with a groove 82 for clamping the elastic hoop 9, and the elastic hoop 9 is located below the mounting seat 3.
  • the upper part of the inner side of the clamping jaw 8 is provided with an inclined surface 81 for mating and abutting on the tapered surface of the tapered lower end 42.
  • the inclined surface 81 extends obliquely from top to bottom in a direction close to the sliding seat 4.
  • the above-mentioned clamping jaw 8 is in a tightened state, the sliding seat 4 is located in the upper part of the cylindrical inner cavity, and a plurality of clamping jaws 8 tighten and clamp the bottle cap 20 under the action of the elastic band 9;
  • the ejector rod 2 drives the sliding seat 4 to move downward and gradually enters the gap between the plurality of clamping jaws 8.
  • the sliding seat 4 slides down and slides down against the inclined surface 81 through the tapered lower end 42 to drive the clamping jaws 8 to rotate away from the cylindrical shape. Inner cavity, and open the three clamping jaws 8 synchronously, so that the clamping jaws 8 are switched to the open state;
  • clamping jaws 8 are in an open state, the sliding seat 4 is located in the lower part of the cylindrical inner cavity, and the plurality of clamping jaws 8 are opened under the action of the sliding seat 4 to release the bottle cap 20;
  • the bottle cap 20 drives the sliding seat 4 to move upward and gradually withdraw from the gap between the plurality of clamping jaws 8.
  • the sliding seat 4 slides upwards until the tapered lower end 42 slides upwards against the inclined surface 81, that is, the cylindrical upper end 41 rises three upwards.
  • the elastic hoop 9 drives the clamping jaw 8 to rotate close to the cylindrical cavity, so that the inclined surface 81 always abuts against the conical surface of the tapered lower end 42.
  • the sliding seat 4 rises, the three clamps
  • the jaws 8 are gradually retracted synchronously, so that the clamping jaws 8 are switched to the tightened state.
  • the rising height of the sliding seat 4 is different, and the tightening angle of the clamping jaw 8 is also different.
  • the clamping jaw 8 can be stabilized in the open state and prevent its shaking from affecting the stability of the clamping.
  • the connecting rod 7 extends in the upper left to lower right direction, it also provides a force to drive the sliding seat 4 to move downward, and the sliding seat 4 is pressed against the gap between the plurality of clamping jaws 8 to balance the elastic band.
  • the inward elastic force of the ring 9 enables the clamping jaw 8 to be stabilized in the open state.
  • the top rod 2 drives the sliding seat 4 to move downward and gradually enters the clamping jaw 8.
  • the sliding seat 4 first abuts the inclined surface 81 inside the clamping jaw 8 through the tapered lower end 42.
  • the clamping jaw 8 continues to move downward. Open until the tapered lower end 42 slides down and away from the inclined surface 81, and after the cylindrical upper end 41 is squeezed down between the three clamping jaws 8, the clamping jaws 8 are opened to the maximum angle;

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Jars (AREA)

Abstract

一种用于瓶盖的夹持装置，包括具有柱形内腔的安装座（3）、可上下滑动的穿设于柱形内腔中的滑动座（4），柱形内腔沿滑动座（4）的滑动方向贯穿安装座（3），柱形内腔的下端开口用于接收瓶盖（20）；装置还包括沿圆周方向间隔排列的设于安装座（3）中的且与柱形内腔连通的第二槽（6）、可相对安装座（3）转动的设于第二槽（6）中的夹爪（8），夹爪（8）至少有两个，用于相互配合的夹持瓶盖（20），装置还包括环设于至少两个夹爪（8）外侧的且用于驱动夹爪（8）同步向柱形内腔转动的弹性箍圈（9）；滑动座（4）用于驱动夹爪（8）同步向远离柱形内腔的方向转动。该装置能够适用于不同形状瓶盖的夹持封盖，夹持快速且夹持稳定，封盖效率较高。

Description

一种用于瓶盖的夹持装置 技术领域
本发明涉及封盖技术领域，特别涉及一种用于瓶盖的夹持装置。
背景技术
在封盖过程中，经常会遇到各种形状不规则的盖子，比如顶部斜面、球面、花纹等。导致盖子抓取困难，严重影响封盖效率。
发明内容
本发明的目的是提供一种用于瓶盖的夹持装置，能够适用于不同形状瓶盖的夹持封盖，夹持快速且夹持稳定，封盖效率较高。
为达到上述目的，本发明采用的技术方案是：
一种用于瓶盖的夹持装置，其特征在于：包括具有柱形内腔的安装座、可上下滑动的穿设于所述柱形内腔中的滑动座，所述柱形内腔沿所述滑动座的滑动方向贯穿所述安装座，所述柱形内腔的下端开口用于接收瓶盖；
所述装置还包括沿圆周方向间隔排列的设于所述安装座中的第二槽，所述第二槽与所述柱形内腔连通；
所述装置还包括可相对所述安装座转动的设于所述第二槽中的夹爪，所述夹爪至少有两个，用于相互配合的夹持瓶盖，所述装置还包括环设于至少两个所述夹爪外侧的且用于驱动所述夹爪同步向所述柱形内腔转动的弹性箍圈；
所述滑动座，用于驱动所述夹爪同步向远离所述柱形内腔的方向转动。
优选地，所述夹爪包括收紧状态和张开状态，
所述夹爪处于所述收紧状态时，所述滑动座位于所述柱形内腔的上部，所述弹性箍圈的弹性力使得至少部分所述夹爪保持于所述柱形 内腔内，以夹持所述瓶盖；
所述夹爪自所述收紧状态向所述张开状态切换时，驱动所述滑动座向下滑动进而推动所述夹爪转动远离所述柱形内腔；
所述夹爪处于所述张开状态时，至少两个所述夹爪彼此远离，以释放所述瓶盖。
优选地，所述装置还包括沿圆周方向间隔排列的设于所述安装座中的第一槽，所述第一槽与所述柱形内腔连通；所述装置还包括弹性机构；
所述弹性机构还包括一端连接在所述安装座侧面的弹簧座、盖设于所述弹簧座另一端的弹簧盖、可沿自身长度延伸方向伸缩的穿设于所述弹簧座、所述弹簧盖和所述第一槽中的导向轴、环设于所述导向轴上的限位环、套设于所述导向轴上的且位于所述弹簧盖和所述限位环之间的弹簧，所述导向轴的两端分别穿出所述弹簧座和所述弹簧盖，所述连杆的另一端转动连接在所述导向轴穿入所述第一槽的一端上。
更优选地，所述第一槽和所述第二槽分别有多个，依次交替且间隔均匀排列的设于所述安装座中。
更优选地，所述第一槽和所述第二槽均沿所述滑动座的滑动方向贯穿所述安装座。
更优选地，所述第一槽和所述第二槽均沿所述柱形内腔的径向方向延伸。
更优选地，所述滑动座包括凸设于其外侧周部的且穿设于所述第一槽中的凸起部，所述连杆的一端转动连接在所述凸起部上。
优选地，所述夹爪通过其上端部转动连接在所述第二槽中，所述弹性箍圈环设于所述夹爪下端部外侧。
更优选地，所述滑动座包括柱形上端部、连接在所述柱形上端部下方且向下锥形收缩的锥形下端部，所述夹爪的内侧上部设有用于配合的抵设所述锥形下端部锥面的斜面。
优选地，所述装置还包括设于所述安装座顶端的用于配合安装的 安装环。
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：本发明一种用于瓶盖的夹持装置，夹爪在滑动座和弹性箍圈的作用下，通过转动在张开状态和收紧状态之间切换，能够适用于不同外径大小以及不同形状的瓶盖，通过弹性机构对滑动座施加径向的弹性抵紧力，使夹爪能够稳定的维持在张开状态以及不同角度的收紧状态，夹持稳定，封盖效率较高。
附图说明
附图1为本发明装置的剖视图(夹爪处于收紧状态)；
附图2为本发明装置的结构示意图一；
附图3为本发明装置的结构示意图二；
附图4为安装座的结构示意图；
附图5为本发明装置的剖视图(夹爪处于张开状态)。
其中：1、封盖座；2、顶杆；3、安装座；4、滑动座；41、柱形上端部；42、锥形下端部；43、凸起部；44、盲孔；5、第一槽；6、第二槽；7、连杆；8、夹爪；81、斜面；82、凹槽；9、弹性箍圈；10、弹簧座；11、弹簧盖；12、导向轴；13、限位环；14、弹簧；15、安装环；16、第一销轴；17、第二销轴；18、第三销轴；19、限位凸环；20、瓶盖；21、第一安装孔；22、凹陷部；23、固定螺帽；24、第二安装孔；25、安装件；26、固定螺栓。
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1-5所示，一种用于瓶盖的夹持装置，连接在封盖座1下端，封盖座1中设有可相对其上下运动的顶杆2，顶杆2滑动的穿设于封盖座1中。该装置包括具有柱形内腔的安装座3、设于安装座3顶端的用于配合封盖座1进行安装的安装环15，柱形内腔为柱形， 安装环15为环形。顶杆2、安装环15与柱形内腔同轴排列，顶杆2可穿过安装环15的中心通孔进入柱形内腔中。具体的，安装环15外侧周部设有外螺纹，可螺纹内接于具有内螺纹的封盖座1中。
参见图1所示，上述一种用于瓶盖的夹持装置还包括可上下滑动的穿设于柱形内腔中的滑动座4，柱形内腔沿滑动座4的滑动方向(即上下方向)贯穿安装座3。在本实施例中，滑动座4包括柱形上端部41、连接在柱形上端部41下方且向下锥形收缩的锥形下端部42，柱形上端部41为柱形，锥形下端部42为锥形。柱形上端部41环抵于安装座3中，对滑动座4的上下滑动起到了导向的作用；滑动座4还包括设于柱形上端部41中的且向上开口的盲孔44，顶杆2向下顶入该盲孔44中。安装座3的内侧周部凸设有用于对滑动座4上端进行限位的限位凸环19，限位凸环19用于阻止滑动座4向上滑出安装座3。
参见图4所示，上述一种用于瓶盖的夹持装置还包括沿圆周方向间隔排列的设于安装座3中的第一槽5和第二槽6，第一槽5和第二槽6均与柱形内腔连通。
第二槽6两侧槽壁上设有用于穿入第三销轴18的第一安装孔21，第二槽6一侧槽壁外设有内凹的凹陷部22，该侧槽壁上的第一安装孔21贯穿槽壁与该凹陷部22连通，第三销轴18穿出该侧的第一安装孔21并进入凹陷部22中，通过位于凹陷部22中的固定螺帽23套设并固定第三销轴18。
第一槽5外端面为平面，该平面上设有第二安装孔24，用于安装弹簧座10。具体的，通过套设于弹簧座10上的安装件25、以及穿设于安装件25和第二安装孔24中的固定螺栓26，将弹簧座10通过安装件25固定在第一槽5外端面上。
在本实施例中，第一槽5和第二槽6均有三个，依次交替且间隔均匀排列的设于安装座3中。第一槽5和第二槽6均沿滑动座4的滑动方向(即上下方向)贯穿安装座3。第一槽5和第二槽6均沿柱形内腔的径向方向延伸，并在径向方向上与柱形内腔连通。三个第一槽 5两两之间互成120°夹角，三个第二槽6两两之间互成120°夹角，第一槽5与相邻的两个第二槽6分别互成60°夹角，第二槽6与相邻的两个第一槽5分别互成60°夹角。
参见图1-3所示，上述一种用于瓶盖的夹持装置还包括设于安装座3上的弹性机构，弹性机构包括设于第一槽5中的且右端(参见图1所示，图1中的右即为这里的右)通过第一销轴16转动连接在滑动座4上的连杆7。弹性机构用于通过该连杆7对滑动座4施加径向的弹性抵紧力。
在本实施例中，弹性机构还包括右端连接在安装座3侧面的弹簧座10、盖设于弹簧座10左端的弹簧盖11、可沿自身长度延伸方向伸缩的穿设于弹簧座10、弹簧盖11和第一槽5中的导向轴12、环凸于导向轴12上的限位环13、套设于导向轴12上的且位于弹簧盖11和限位环13之间的弹簧14，导向轴12的两端分别穿出弹簧座10和弹簧盖11，即导向轴12的左端(参见图1所示，图1中的左即为这里的左)向左穿出弹簧盖11，导向轴12的右端向右穿出弹簧座10，并伸入第一槽5中。上述连杆7的左端通过第二销轴17转动连接在导向轴12的右端上。第二销轴17和第一销轴16相互平行并平行于水平面，且垂直于第一槽5。
在本实施例中，滑动座4包括凸设于其外侧周部的且穿设于第一槽5中的凸起部43，连杆7的右端通过第一销轴16转动连接在凸起部43上。凸起部43凸设于柱形上端部41侧部。在滑动座4升降过程中，第一槽5的两侧槽壁对凸起部43起到限位和引导作用，该凸起部43同样起到了导向的作用。
参见图1-3所示，上述一种用于瓶盖的夹持装置还包括可绕第三销轴18相对安装座3转动的设于第二槽6中的夹爪8，第三销轴18平行于水平面，且垂直于第二槽6。该夹爪8用于通过其内侧抵接滑动座4，该装置还包括环设于三个夹爪8外侧的弹性箍圈9，通过该弹性箍圈9提供驱动三个夹爪8向内夹紧瓶盖20的夹持力。三个夹爪8一一对应的设于三条第二槽6中。根据瓶盖20的形状，夹爪8 的内侧面设有相应的凹凸纹路，以更好的夹持瓶盖20。
在本实施例中，夹爪8通过其上端部转动连接在第二槽6中，弹性箍圈9环设于夹爪8下端部外侧。参见图1所示，夹爪8下端位于安装座3下方，夹爪8下端外侧设有用于卡入弹性箍圈9的凹槽82，弹性箍圈9位于安装座3下方。夹爪8的内侧上部设有用于配合的抵设于锥形下端部42锥面上的斜面81。参见图1所示，该斜面81从上往下沿靠近滑动座4的方向倾斜延伸。
参见图1所示，上述夹爪8处于收紧状态，滑动座4位于柱形内腔的上部，多个夹爪8在弹性箍圈9的作用下收紧并夹紧瓶盖20；
顶杆2驱动滑动座4向下运动并逐渐进入多个夹爪8之间的空隙，滑动座4向下滑动并通过锥形下端部42向下滑抵斜面81，驱动夹爪8转动远离柱形内腔，并同步撑开三个夹爪8，使夹爪8切换至张开状态；
参见图5所示，上述夹爪8处于张开状态，滑动座4位于柱形内腔的下部，多个夹爪8在滑动座4的作用下张开并释放瓶盖20；
瓶盖20驱动滑动座4向上运动并逐渐退出多个夹爪8之间的空隙，滑动座4向上滑动直至锥形下端部42向上滑抵斜面81，即柱形上端部41向上高出三个夹爪8斜面81的最低点，弹性箍圈9驱动夹爪8转动靠近柱形内腔，使斜面81始终抵紧锥形下端部42的锥面，随着滑动座4的上升，三个夹爪8逐渐同步收拢，使夹爪8切换至收紧状态。滑动座4上升的高度不同，夹爪8收紧的角度亦不相同。
参见图1所示，瓶盖20被夹紧后，部分顶入安装座3的柱形内腔中。
当凸起部43与导向轴12等高时，弹簧14压缩程度最大。当夹爪8处于收紧状态时(图1)，连杆7沿左下至右上的方向倾斜延伸；当夹爪8处于张开状态时(图5)，连杆7沿左上至右下的方向倾斜延伸。不管夹爪8处于收紧状态还是张开状态，弹簧14均处于压缩状态，以通过导向杆和连杆7为滑动座4提供径向的弹性抵紧力。
由于顶杆2将夹爪8顶至张开状态后会缩回，通过这个设置，能够将夹爪8稳定在张开状态，防止其晃动影响夹持的稳定性。具体的，连杆7沿左上至右下的方向延伸时，还提供驱动滑动座4向下运动的力，将滑动座4抵紧在多个夹爪8之间的间隙中，以平衡弹性箍圈9向内的弹性力，使夹爪8能够稳定在张开状态。
以下具体阐述下本实施例的工作过程：
当需要夹持瓶盖时：
顶杆2驱动滑动座4向下运动并逐渐进入夹爪8，滑动座4首先通过锥形下端部42抵触夹爪8内侧的斜面81，随着滑动座4继续向下运动，夹爪8不断张开，直至锥形下端部42向下滑离斜面81，柱形上端部41向下挤入三个夹爪8之间后，夹爪8张开至最大角度；
将安装座3对准瓶盖20下压，同时顶杆2复位，瓶盖20向上顶入三个夹爪8之间，并顶起滑动座4使其向上运动，当柱形上端部41底部高出斜面81底部后，滑动座4通过锥形下端部42向上滑抵斜面81，夹爪8在弹性箍圈9的驱动下逐渐合拢，使斜面81始终抵紧锥形下端部42的锥面，随着滑动座4的上升，三个夹爪8逐渐同步收拢，直至完全夹紧瓶盖20。
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 (11)

  1. 一种用于瓶盖的夹持装置，其特征在于：包括具有柱形内腔的安装座、可上下滑动的穿设于所述柱形内腔中的滑动座，所述柱形内腔沿所述滑动座的滑动方向贯穿所述安装座，所述柱形内腔的下端开口用于接收瓶盖；
    所述装置还包括沿圆周方向间隔排列的设于所述安装座中的第二槽，所述第二槽与所述柱形内腔连通；
    所述装置还包括可相对所述安装座转动的设于所述第二槽中的夹爪，所述夹爪至少有两个，用于相互配合的夹持瓶盖，所述装置还包括环设于至少两个所述夹爪外侧的且用于驱动所述夹爪同步向所述柱形内腔转动的弹性箍圈；
    所述滑动座，用于驱动所述夹爪同步向远离所述柱形内腔的方向转动；
    所述夹爪包括收紧状态和张开状态，
    所述夹爪处于所述收紧状态时，所述滑动座位于所述柱形内腔的上部，所述弹性箍圈的弹性力使得至少部分所述夹爪保持于所述柱形内腔内，以夹持所述瓶盖；
    所述夹爪自所述收紧状态向所述张开状态切换时，驱动所述滑动座向下滑动进而推动所述夹爪转动远离所述柱形内腔；
    所述夹爪处于所述张开状态时，至少两个所述夹爪彼此远离，以释放所述瓶盖；
    所述装置还包括沿圆周方向间隔排列的设于所述安装座中的第一槽，所述第一槽与所述柱形内腔连通；所述装置还包括弹性机构；
    所述弹性机构还包括一端连接在所述安装座侧面的弹簧座、盖设于所述弹簧座另一端的弹簧盖、可沿自身长度延伸方向伸缩的穿设于所述弹簧座、所述弹簧盖和所述第一槽中的导向轴、环设于所述导向轴上的限位环、套设于所述导向轴上的且位于所述弹簧盖和所述限位环之间的弹簧，所述导向轴的两端分别穿出所述弹簧座和所述弹簧盖， 所述连杆的另一端转动连接在所述导向轴穿入所述第一槽的一端上；
    所述第一槽和所述第二槽分别有多个，依次交替且间隔均匀排列的设于所述安装座中；
    所述第一槽和所述第二槽均沿所述滑动座的滑动方向贯穿所述安装座；
    所述第一槽和所述第二槽均沿所述柱形内腔的径向方向延伸；
    所述滑动座包括凸设于其外侧周部的且穿设于所述第一槽中的凸起部，所述连杆的一端转动连接在所述凸起部上；
    所述夹爪通过其上端部转动连接在所述第二槽中，所述弹性箍圈环设于所述夹爪下端部外侧；
    所述滑动座包括柱形上端部、连接在所述柱形上端部下方且向下锥形收缩的锥形下端部，所述夹爪的内侧上部设有用于配合的抵设所述锥形下端部锥面的斜面；
    所述装置还包括设于所述安装座顶端的用于配合安装的安装环。
  2. 一种用于瓶盖的夹持装置，其特征在于：包括具有柱形内腔的安装座、可上下滑动的穿设于所述柱形内腔中的滑动座，所述柱形内腔沿所述滑动座的滑动方向贯穿所述安装座，所述柱形内腔的下端开口用于接收瓶盖；
    所述装置还包括沿圆周方向间隔排列的设于所述安装座中的第二槽，所述第二槽与所述柱形内腔连通；
    所述装置还包括可相对所述安装座转动的设于所述第二槽中的夹爪，所述夹爪至少有两个，用于相互配合的夹持瓶盖，所述装置还包括环设于至少两个所述夹爪外侧的且用于驱动所述夹爪同步向所述柱形内腔转动的弹性箍圈；
    所述滑动座，用于驱动所述夹爪同步向远离所述柱形内腔的方向转动。
  3. 根据权利要求2所述的一种用于瓶盖的夹持装置，其特征在于：所述夹爪包括收紧状态和张开状态，
    所述夹爪处于所述收紧状态时，所述滑动座位于所述柱形内腔的上部，所述弹性箍圈的弹性力使得至少部分所述夹爪保持于所述柱形内腔内，以夹持所述瓶盖；
    所述夹爪自所述收紧状态向所述张开状态切换时，驱动所述滑动座向下滑动进而推动所述夹爪转动远离所述柱形内腔；
    所述夹爪处于所述张开状态时，至少两个所述夹爪彼此远离，以释放所述瓶盖。
  4. 根据权利要求2所述的一种用于瓶盖的夹持装置，其特征在于：所述装置还包括沿圆周方向间隔排列的设于所述安装座中的第一槽，所述第一槽与所述柱形内腔连通；所述装置还包括弹性机构；
    所述弹性机构还包括一端连接在所述安装座侧面的弹簧座、盖设于所述弹簧座另一端的弹簧盖、可沿自身长度延伸方向伸缩的穿设于所述弹簧座、所述弹簧盖和所述第一槽中的导向轴、环设于所述导向轴上的限位环、套设于所述导向轴上的且位于所述弹簧盖和所述限位环之间的弹簧，所述导向轴的两端分别穿出所述弹簧座和所述弹簧盖，所述连杆的另一端转动连接在所述导向轴穿入所述第一槽的一端上。
  5. 根据权利要求4所述的一种用于瓶盖的夹持装置，其特征在于：所述第一槽和所述第二槽分别有多个，依次交替且间隔均匀排列的设于所述安装座中。
  6. 根据权利要求4所述的一种用于瓶盖的夹持装置，其特征在于：所述第一槽和所述第二槽均沿所述滑动座的滑动方向贯穿所述安装座。
  7. 根据权利要求4所述的一种用于瓶盖的夹持装置，其特征在于：所述第一槽和所述第二槽均沿所述柱形内腔的径向方向延伸。
  8. 根据权利要求4所述的一种用于瓶盖的夹持装置，其特征在于：所述滑动座包括凸设于其外侧周部的且穿设于所述第一槽中的凸起部，所述连杆的一端转动连接在所述凸起部上。
  9. 根据权利要求2所述的一种用于瓶盖的夹持装置，其特征在 于：所述夹爪通过其上端部转动连接在所述第二槽中，所述弹性箍圈环设于所述夹爪下端部外侧。
  10. 根据权利要求9所述的一种用于瓶盖的夹持装置，其特征在于：所述滑动座包括柱形上端部、连接在所述柱形上端部下方且向下锥形收缩的锥形下端部，所述夹爪的内侧上部设有用于配合的抵设所述锥形下端部锥面的斜面。
  11. 根据权利要求2所述的一种用于瓶盖的夹持装置，其特征在于：所述装置还包括设于所述安装座顶端的用于配合安装的安装环。
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