WO2011079573A1 - 除静电预开袋装置 - Google Patents

除静电预开袋装置 Download PDF

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Publication number
WO2011079573A1
WO2011079573A1 PCT/CN2010/073615 CN2010073615W WO2011079573A1 WO 2011079573 A1 WO2011079573 A1 WO 2011079573A1 CN 2010073615 W CN2010073615 W CN 2010073615W WO 2011079573 A1 WO2011079573 A1 WO 2011079573A1
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WIPO (PCT)
Prior art keywords
bag
opener
roller
bag opener
opening
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PCT/CN2010/073615
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English (en)
French (fr)
Inventor
陈智君
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深圳安吉尔饮水产业集团有限公司
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Application filed by 深圳安吉尔饮水产业集团有限公司 filed Critical 深圳安吉尔饮水产业集团有限公司
Publication of WO2011079573A1 publication Critical patent/WO2011079573A1/zh

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    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks

Definitions

  • the invention relates to an auxiliary device for a bagged water drinking device, in particular to a static pre-opening bag device.
  • Bottled water has gradually gained popularity due to its convenience, hygiene and environmental protection.
  • In the process of producing bagged water due to transportation and sanitary safety requirements, it is common practice to carry out a package outside the finished water bag.
  • Some of the products are packaged in a carton, but the cost of this package is high. It is well adapted to the market demand. Therefore, the current mainstream packaging method is: putting a film outer bag on the outside of the finished water bag, but when the bag is packaged, it is not easy to open the film bag due to electrostatic adsorption between the two pieces of the film bag.
  • the electrostatic adsorption makes the demand for the suction cup opening device higher, the equipment investment also increases, and due to the existence of electrostatic adsorption, the effect of using the suction cup to open the bag is not very high. Ideally, it causes the problem of low bagging efficiency of the packaging equipment, and since the storage mode of the film is mainly taken into a roll, the adsorption force between the films is inevitably increased after the roll, and the film bag is more difficult to open.
  • the technical problem to be solved by the present invention is to solve the problem that the current film bag is difficult to open the bag mouth due to electrostatic adsorption, and provides a simple structure, convenient operation, wide adaptability, and can damage the electrostatic adsorption force between the films, and can be used for continuous loading.
  • the static pre-opening bag device of the bag is to solve the problem that the current film bag is difficult to open the bag mouth due to electrostatic adsorption, and provides a simple structure, convenient operation, wide adaptability, and can damage the electrostatic adsorption force between the films, and can be used for continuous loading.
  • a static pre-opening bag device including a fixing bracket, a bag opener for opening a film bag, and a driving mechanism for driving the film bag to move in one direction
  • the fixing bracket A limit mechanism is provided, and the limit mechanism clamps the bag opener and restricts it from floating only within a certain range.
  • the limiting mechanism is an upper limiter and a lower limiter respectively disposed above and below the bag opener, and the opener is located between the upper limiter and the lower limiter without connection and is subjected to the upper limiter and the lower limiter.
  • the restriction in position makes it only float within a certain range.
  • the upper limiter is provided with two upper limit rollers above the bag opener, and the lower limiter is arranged with three lower limit rollers under the bag opener, and the upper limit roller and the lower limit roller cooperate to limit the opener to float.
  • the fixing bracket comprises two side plates, the two upper limit rollers are relatively fixed on the two side plates of the fixing bracket, and the lower limit roller comprises a long roller at the front of the bag opener and oppositely arranged at the rear of the bag opener.
  • the two short rollers, the lower limit roller are also fixed on the two side plates of the fixed bracket.
  • the bag opener is provided with an opener adjustment mechanism for adjusting the size of the bag opener.
  • the bag opener is a cylinder body with a hollow inner cavity
  • the bag opener adjusting mechanism is an adjustable length support rod
  • the support rod is disposed in the hollow inner cavity of the bag opener and supports the inner wall of the bag opener, and is adjusted The length of the support rod deforms the opener to accommodate different sizes of film bags.
  • the bag opener has a smooth outer surface, and the outer surface shape cooperates with the limiting mechanism to restrict the bag opener from coming out of the limiting mechanism.
  • the bag opener has a hollow flat duckbill shape or an elliptical frustum shape, and the small end of the front end of the bag opener is large, and the rear end height of the bag opener is larger than the limit distance of the limit mechanism so that the bag opener does not come out from the front portion.
  • a guiding mechanism for guiding the film bag is provided after the bag opener.
  • the guiding mechanism includes a pair of relatively rotating rollers, one of which is a fixed roller and the other of which is an adjustment roller that moves up and down to adjust the spacing between it and the fixed roller.
  • the invention adopts the bag opener to be inserted into the undivided film bag, and the driving mechanism drives the film bag to continuously move in one direction, and the film bag is continuously opened when passing through the bag opener. Since the bag opener is located in the film bag, it cannot be connected with other parts of the device, but in order to ensure that the bag opener does not move with the film bag and can continuously open the film bag, the bag opener is limited by the fixing bracket.
  • the mechanism clamps the limit position, and the limit mechanism only limits the random movement of the bag opener, but does not fix the bag opener, so that it can only float in a small range in the film bag without moving with the film bag, and the structure of the invention is simple and adaptable.
  • the strong and open bag has good electrostatic effect and convenient operation, and can be used in equipment for continuous bagging, which improves production efficiency.
  • the device of the invention realizes the function of removing the static pre-opening bag, greatly reduces the production cost, and can adapt to all the film bags which have been subjected to electrostatic treatment and non-electrostatic treatment before leaving the factory, and has wide adaptability.
  • the limit mechanism is limited by the upper limiter and the lower limiter provided above and below the bag opener, the bag opener and the upper limiter There is no connection between the limiter and the lower limiter, but it is restricted by the position of the upper limiter and the lower limiter so that it only floats up and down within a certain range.
  • the upper limiter is provided with two upper limit rollers above the bag opener
  • the lower limiter is provided with three lower limit rollers under the bag opener, and the upper limit roller and the lower limit roller cooperate to limit the opener to float.
  • Both the upper limit roller and the lower limit roller rotate with the movement of the film bag, thereby reducing the resistance of the upper limit roller and the lower limit roller to the movement of the film bag.
  • the upper limiter includes two opposite upper limit rollers to prevent the opener from coming out.
  • the lower limiter includes a long roller at the front of the opener and two short rollers at the rear of the opener.
  • the rollers can smoothly support the bag opener, and the oppositely disposed upper and lower limit rollers also make the bag opener not deviate from the skew, and will not hinder the movement of the film bag, so that the smooth movement, the upper limit roller and the lower limit position
  • the roller cooperates with the guiding mechanism so that the bag opener does not come out from the rear, so that the bag opener floats in a certain space, but does not come out.
  • the bag opener is provided with an opener adjustment mechanism for adjusting the size of the bag opener.
  • the bag opener has a hollow inner cavity, and the bag opener adjusting mechanism is an adjustable length support bar.
  • the support bar is disposed in the hollow inner cavity of the bag opener and supports the inner wall of the bag opener, and the length of the support bar is adjusted to deform the cylinder body.
  • the bag opener should have a smooth outer surface to prevent breakage of the hook film bag, and the outer surface shape of the bag opener cooperates with the limit mechanism to limit the bag opener from the limit mechanism.
  • the bag opener has a hollow flat duckbill shape and an elliptical frustum shape, and the front end of the bag opener has a small rear end, and the rear end height of the bag opener is larger than the limit distance of the limit mechanism, and the film bag is opened during the backward movement.
  • the bag holder is simultaneously restrained by the limit roller and the guiding mechanism without coming out.
  • a guiding mechanism is provided when entering the bag opener, the guiding mechanism is a pair of relatively rotating rollers disposed behind the bag opener, and the two rollers are relatively rotated to guide the film bag to the bag opener .
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • Figure 2 is a perspective view of another direction of the embodiment of the present invention.
  • Figure 3 is a cross-sectional view of a center of symmetry of an embodiment of the present invention.
  • the front and rear orientation of the present invention is defined according to the movement direction of the film bag, and the direction corresponding to the moving direction of the film bag is defined as the rear direction, and the direction opposite to the moving direction of the film bag is defined as the front, that is, the orientation of the device that does not enter the pre-opening bag is the front, The orientation of leaving the pre-opening bag after opening the bag is back.
  • a static pre-opening bag device includes a fixing bracket, a bag opener for opening the film bag, and a driving mechanism (not shown) for moving the film bag in one direction, the fixing.
  • the bracket comprises two side plates 1 , and the two side plates 1 are provided with a limiting mechanism 3 .
  • the limiting mechanism 3 clamps the bag opener 2 and restricts it from floating only within a certain range, and is provided after the bag opener 2 for The film bag guides the guiding mechanism 4.
  • the limiting mechanism 3 is an upper limiter 31 and a lower limiter 32 respectively disposed above and below the bag opener 2, and the opener 2 is located at the upper limiter 31 without connection.
  • the lower limiter 32 is constrained in position by the upper limiter 31 and the lower limiter 32 so as to float only within a certain range.
  • the upper limiter 31 includes two rotatable upper limit rollers 31a, 31b disposed above the bag opener 2, and the lower limiter 32 is provided with three rotatable lower limit rollers 32a, 32b under the bag opener 2, 32c.
  • the upper limit rollers 31a, 31b and the lower limit rollers 32a, 32b, 32c are each composed of a self-rotating wheel body and a fixed shaft, and the two upper limit rollers 31a, 31b are relatively horizontally disposed, and the fixed shaft ends of the upper limit rollers 31a, 31b are fixed.
  • the two lower side plates 1 are fixed by screws, and the lower limit rollers 32a, 32b, 32c include a long roller 32a disposed at the front of the bag opener 2 and two short rollers disposed opposite the rear of the bag opener 2.
  • the long roller 32a, the short rollers 32b, 32c are all horizontally arranged, and the two ends of the fixed roller 32a are fixed to the two side plates 1 of the fixing bracket by screws, and the two short rollers 32b, 32c are fixed to the shaft.
  • the ends are also fixed symmetrically on the two side plates 1 of the fixing bracket by screws, and the supporting surface formed by the tops of the long rollers 32a and the short rollers 32b, 32c is a horizontal plane, and the film bag is kept linearly twisted when the bag is opened.
  • the bag opener 2 has a smooth outer surface, and its outer surface shape cooperates with the upper and lower limiters 31, 32 of the limiting mechanism to restrict the bag opener from coming out of the limiting mechanism.
  • the bag opener 2 has a hollow flat duckbill shape or an elliptical frustum shape, and the front end of the bag opener 2 has a small rear end, and the rear end height of the bag opener 2 is greater than the limit distance of the limit mechanism, so that the bag opener 2 does not come forward. The part is out.
  • the bag opener 2 is a cylinder having a hollow inner cavity, and the bag opener 2 is provided with an opener adjustment mechanism for adjusting the size of the bag opener 2.
  • the bag opener adjusting mechanism is an adjustable length support rod 21, and the support rod 21 is disposed in the hollow inner cavity of the bag opener 2 and supports the inner wall of the bag opener 2, and the support rods 21 are respectively disposed in the hollow of the bag opener 2 One of the front and the rear of the inner cavity is provided.
  • the support rod 21 includes two parts of a screw 21a and a nut 21b which are screwed together, wherein the screw 21a is rotatably connected to the inner wall of the opener 2, and the nut 21b is fixed to the opposite inner wall of the opener 2, this embodiment
  • the screw 21a is rotatably connected to the bottom or top inner wall of the bag opener 2, and the nut 21b is correspondingly fixed on the top or bottom inner wall of the bag opener 2, and the screw 21a is rotated to adjust the length of the support rod 21 to deform the bag opener to adapt to different specifications of the film. bag.
  • the guiding mechanism 4 includes a pair of relatively rotating rollers, wherein one of the lower rollers is a fixed roller 41, and the other roller above is a regulating roller 42, and both ends of the adjusting roller 42
  • the U-shaped groove 12 is provided in the plate 1 on both sides of the fixing bracket, and the regulating roller 42 is moved up and down to adjust the distance between it and the fixed roller 41.
  • the adjustment roller 42 is moved upward, the distance between the adjustment roller 42 and the fixed roller 41 is increased, so that the film bag can be introduced between the adjustment roller 42 and the fixed roller 41.
  • the regulating roller 42 is positioned in the U-shaped groove 12, the regulating roller 42 is fitted to the fixed roller 41 and pressed against each other, at which time the film bag positioned between the regulating roller 42 and the fixed roller 41 can be guided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Apparatuses For Manual Packaging Operations (AREA)

Description

除静电预开袋装置 技术领域
本发明涉及一种袋装水饮水设备的辅助装置，尤其涉及一种除静电预开袋装置。
 背景技术
袋装水由于其便利性、卫生、环保的优点，逐步得到普及。在生产袋装水的过程中，由于运输以及卫生安全性的要求，普遍做法是在成品水袋外再进行一次封装，其中一部分产品采用纸箱封装的方式，但是这种封装方式成本较高，不能很好地适应市场需求，因此目前主流的封装方式为：在成品水袋外面再套装一个薄膜外袋，但在封装套袋时，由于薄膜袋两片之间有静电吸附，不容易打开薄膜袋，由于现有的封装设备采用吸盘开袋，静电吸附作用使得对吸盘开袋装置的要求更高，设备投入也会随之加大，并且由于静电吸附的存在，采用吸盘开袋的效果不是很理想，因此造成封装设备装袋效率低的问题，并且由于薄膜的储存方式主要采取成卷，成卷后势必会增大薄膜之间的吸附力，薄膜袋更不易打开。
 技术问题
本发明要解决的技术问题是针对目前薄膜袋静电吸附造成不易打开袋口的问题，提供一种结构简单、操作方便、适应范围广、能破坏薄膜之间的静电吸附力、可以用于连续装袋的除静电预开袋装置。
 技术解决方案
本发明通过以下技术方案来解决上述技术问题：一种除静电预开袋装置，包括固定支架、撑开薄膜袋的开袋器、带动薄膜袋向一个方向运动的驱动机构，所述固定支架上设有限位机构，限位机构夹持开袋器并限制其只在一定范围内浮动。
所述的限位机构为分别在开袋器上方、下方设置的上限位器、下限位器，开袋器无连接地位于上限位器和下限位器之间并受到上限位器和下限位器在位置上的制约使其只在一定范围内浮动。
所述上限位器为在开袋器上方设置两个上限位滚轮，所述下限位器为在开袋器下方设置三个下限位滚轮，上限位滚轮与下限位滚轮配合限制开袋器浮动。
所述固定支架包括两个侧板，两个上限位滚轮相对固定在固定支架的两个侧板上，下限位滚轮包括在开袋器前部设置一个长滚轮、在开袋器后部相对设置的两个短滚轮，下限位滚轮也固定在固定支架的两个侧板上。
所述开袋器上设有调节开袋器大小的开袋器调节机构。
所述开袋器为带有中空内腔的筒体，所述开袋器调节机构为可调节长度的支撑杆，支撑杆设置在开袋器的中空内腔中并支撑开袋器内壁，调节支撑杆长度使开袋器变形以适应不同规格薄膜袋。
所述开袋器具有光滑的外表面，并且其外表面形状与限位机构配合，限制开袋器从限位机构中脱出。
所述开袋器呈中空的扁鸭嘴形或椭圆锥台形，开袋器前端小后端大，开袋器后端高度大于限位机构的限位距离使开袋器不从前部脱出。
在开袋器后设置有用于对薄膜袋进行导向的引导机构。
所述引导机构包括一对相对转动的辊轮，其中一个辊轮为固定辊轮，另一个为调节辊轮，调节辊轮上下移动以调节其与固定辊轮之间的间距。
 有益效果
本发明采用开袋器***到未分割的薄膜袋中，驱动机构带动薄膜袋连续朝一个方向运动，薄膜袋经过开袋器时被连续撑开。由于开袋器位于薄膜袋中就不能与装置的其他部件具有连接关系，但为了保证开袋器不随薄膜袋移动并能连续撑开薄膜袋，开袋器就被固定支架上设有的限位机构夹持限位，限位机构只是限制开袋器的随意移动，但不固定开袋器，使其只能在薄膜袋内小范围浮动而不随薄膜袋移动，本发明的结构简单、适应性强、开袋除静电效果好、操作方便、可以用于连续装袋的设备中，提高了生产效率。通过本发明的装置实现了除静电预开袋功能，大大降低了生产成本，而且能适应出厂前做过静电处理和未做静电处理的所有薄膜袋，适应范围广。
为了保证开袋器的开袋效果，又不影响薄膜袋的连续运动，限位机构就由开袋器上方、下方设置的上限位器、下限位器来限位，开袋器与上限位器和下限位器之间无连接，但受到上限位器和下限位器在位置上的制约使其只在一定范围内上下浮动。
具体将上限位器为在开袋器上方设置两个上限位滚轮，所述下限位器为在开袋器下方设置三个下限位滚轮，上限位滚轮与下限位滚轮配合限制开袋器浮动，上限位滚轮和下限位滚轮都随薄膜袋的运动而转动，从而减少上限位滚轮和下限位滚轮对薄膜袋运动的阻力。
上限位器包括两个相对的上限位滚轮，防止开袋器从上方脱出，下限位器包括在开袋器前部设置一个长滚轮、在开袋器后部相对设置的两个短滚轮，三个辊轮可以平稳支撑开袋器，并且相对设置的上、下限位滚轮也使开袋器不偏离不歪斜，不会对薄膜袋的运动形成障碍，使其顺畅运动，上限位滚轮、下限位滚轮与引导机构配合，使开袋器不会从后部脱出，从而使开袋器在一定空间内浮动，但不脱出。
为了适应不同规格的薄膜袋，开袋器上设有调节开袋器大小的开袋器调节机构。其中开袋器带有中空内腔，开袋器调节机构为可调节长度的支撑杆，支撑杆设置在开袋器的中空内腔中并支撑开袋器内壁，调节支撑杆长度使筒体变形以适应不同规格薄膜袋。
开袋器要具有光滑的外表面，防止钩挂薄膜袋造成破损，并且开袋器的外表面形状与限位机构配合，能限制开袋器从限位机构中脱出。例如开袋器呈中空的扁鸭嘴形、椭圆锥台形，开袋器前端小后端大，开袋器后端高度大于限位机构的限位距离，在薄膜袋向后运动过程中，开袋器被限位滚轮和引导机构同时限位而不脱出。
为了使薄膜袋平稳运动，在进入开袋器时设置引导机构，引导机构为在开袋器后设置的一对相对转动的辊轮，两个辊轮相对转动将薄膜袋引导至开袋器处。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明实施例的结构示意图；
图2是本发明实施例的另一个方向的立体图；
图3是本发明实施例对称中心的横剖图。
 本发明的最佳实施方式
本发明的前后方位是依据薄膜袋运动方向定义，与薄膜袋运动方向一致的方向定义为后，与与薄膜袋运动方向相反的方向定义为前，即未进入预开袋装置的方位为前、开袋后离开预开袋装置的方位为后。
如图1所示，一种除静电预开袋装置，包括固定支架、撑开薄膜袋的开袋器2、带动薄膜袋向一个方向运动的驱动机构（图中未示出），所述固定支架包括两个侧板1，两个侧板1上设有限位机构3，限位机构3夹持开袋器2并限制其只在一定范围内浮动，在开袋器2后设有用于对薄膜袋进行导向的引导机构4。
如图1、2所示，所述的限位机构3为分别在开袋器2上方、下方设置的上限位器31、下限位器32，开袋器2无连接地位于上限位器31和下限位器32之间并受到上限位器31和下限位器32在位置上的制约使其只在一定范围内浮动。上限位器31包括在开袋器2上方设置两个可自转的上限位滚轮31a、31b，所述下限位器32为在开袋器2下方设置三个可自转的下限位滚轮32a、32b、32c。上限位滚轮31a、31b和下限位滚轮32a、32b、32c都是由自转的轮体和固定轴组成，两个上限位滚轮31a、31b相对水平设置，上限位滚轮31a、31b的固定轴端部通过螺钉固定在固定支架的两个侧板1上，下限位滚轮32a、32b、32c包括在开袋器2前部设置一个长滚轮32a、在开袋器2后部相对设置的两个短滚轮32b、32c，长滚轮32a、短滚轮32b、32c都是水平设置，长滚轮32a固定轴的两端通过螺钉固定在固定支架的两个侧板1上，两个短滚轮32b、32c固定轴的端部也分别通过螺钉对称固定在固定支架的两个侧板1上，并且长滚轮32a、短滚轮32b、32c顶部所形成的支撑面为水平面，在开袋时保持薄膜袋直线运动不扭曲。
如图1、2所示，开袋器2具有光滑的外表面，并且其外表面形状与限位机构的上、下限位器31、32配合，限制开袋器从限位机构中脱出。所述开袋器2呈中空的扁鸭嘴形或椭圆锥台形，开袋器2前端小后端大，开袋器2后端高度大于限位机构的限位距离使开袋器2不从前部脱出。
如图3所示，开袋器2为带有中空内腔的筒体，所述开袋器2上设有调节开袋器2大小的开袋器调节机构。所述开袋器调节机构为可调节长度的支撑杆21，支撑杆21设置在开袋器2的中空内腔中并支撑开袋器2内壁，支撑杆21分别设置在开袋器2的中空内腔前部和后部各设置一个。支撑杆21包括螺接在一起的螺杆21a和螺母21b两部分，其中螺杆21a转动连接在开袋器2的内壁上，螺母21b固定在开袋器2相对的另一侧内壁上，本实施例的螺杆21a转动连接在开袋器2底部或顶部内壁上，螺母21b对应固定在开袋器2顶部或底部内壁上，转动螺杆21a，调节支撑杆21长度使开袋器变形以适应不同规格薄膜袋。
如图1所示，所述引导机构4包括一对相对转动的辊轮，其中下方的一个辊轮为固定辊轮41，上方的另一个辊轮为调节辊轮42，调节辊轮42两端架在固定支架两侧板1上设置的U形槽12内，调节辊轮42上下移动以调节其与固定辊轮41之间的间距。在向上移动调节辊轮42时，增大调节辊轮42与固定辊轮41的间距，这样就可以将薄膜袋引入调节辊轮42与固定辊轮41之间。在调节辊轮42位于U形槽12内时，调节辊轮42贴合固定辊轮41并相互挤压，此时可以对位于调节辊轮42与固定辊轮41之间的薄膜袋导向。

Claims (10)

  1. 一种除静电预开袋装置，其特征在于,包括固定支架、撑开薄膜袋的开袋器、带动薄膜袋向一个方向运动的驱动机构，所述固定支架上设有限位机构，限位机构夹持开袋器并限制其只在一定范围内浮动。
  2. 根据权利要求1所述的除静电预开袋装置，其特征在于，所述的限位机构为分别在开袋器上方、下方设置的上限位器、下限位器，开袋器无连接地位于上限位器和下限位器之间并受到上限位器和下限位器在位置上的制约使其只在一定范围内浮动。
  3. 据权利要求2所述的除静电预开袋装置，其特征在于，所述上限位器为在开袋器上方设置两个上限位滚轮，所述下限位器为在开袋器下方设置三个下限位滚轮，上限位滚轮与下限位滚轮配合限制开袋器浮动。
  4. 根据权利要求3所述的除静电预开袋装置，其特征在于， 所述固定支架包括两个侧板，两个上限位滚轮相对固定在固定支架的两个侧板上，下限位滚轮包括在开袋器前部设置一个长滚轮、在开袋器后部相对设置的两个短滚轮，下限位滚轮也固定在固定支架的两个侧板上。
  5. 根据权利要求1～4任意一项所述的除静电预开袋装置，其特征在于，所述开袋器上设有调节开袋器大小的开袋器调节机构。
  6. 根据权利要求5所述的除静电预开袋装置，其特征在于，所述开袋器为带有中空内腔的筒体，所述开袋器调节机构为可调节长度的支撑杆，支撑杆设置在开袋器的中空内腔中并支撑开袋器内壁，调节支撑杆长度使开袋器变形以适应不同规格薄膜袋。
  7. 根据权利要求6所述的除静电预开袋装置，其特征在于，所述开袋器具有光滑的外表面，并且其外表面形状与限位机构配合，限制开袋器从限位机构中脱出。
  8. 根据权利要求7所述的除静电预开袋装置，其特征在于，所述开袋器呈中空的扁鸭嘴形或椭圆锥台形，开袋器前端小后端大，开袋器后端高度大于限位机构的限位距离使开袋器不从前部脱出。
  9. 根据权利要求1～4任意一项所述的除静电预开袋装置，其特征在于，在开袋器后设置有用于对薄膜袋进行导向的引导机构。
  10. 根据权利要求9所述的除静电预开袋装置，其特征在于，所述引导机构包括一对相对转动的辊轮，其中一个辊轮为固定辊轮，另一个为调节辊轮，调节辊轮上下移动以调节其与固定辊轮之间的间距。
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CN105752406B (zh) * 2016-04-15 2017-12-01 合肥工业大学智能制造技术研究院 一种包装机的自动开袋机构
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CN110626571B (zh) * 2019-10-23 2023-09-05 西安志高罗茨风机技术有限责任公司 一种撑开水平输送薄膜的弹性开膜装置及工作方法

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