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公开(公告)号：US5873214A
公开(公告)日：1999-02-23
申请号：US751016
申请日：1996-11-15
CPC分类号： B65B11/025 , B65B2210/16 , B65B2210/20
摘要： A load portion is engaged in an infeed area and transported from the infeed area to a wrapping area with rotational, horizontal, and vertical carriers. Those carriers move the portion of the load horizontally along two horizontal degrees of freedom and one vertical degree of freedom by rotating a portion of the load about a vertical axis and translating the portion of the load along a generally linear horizontal direction and a generally linear vertical direction. The load is disengaged in the wrapping area and a stretch wrap packaging material dispenser is engaged and is transported to the wrapping area by the same rotational, horizontal, and vertical carriers to wrap the portion of the load with stretch wrap packaging material by using, once again, the same rotational, horizontal, and vertical carriers to rotate the dispenser around the load.
摘要翻译： 负载部分接合在进料区域中并且从进料区域传送到具有旋转，水平和垂直载体的包裹区域。 那些载体通过使负载的一部分围绕垂直轴线旋转并沿着大致线性的水平方向和大体上线性的垂直方向平移载荷的一部分，沿着两个水平自由度和一个垂直自由度水平地移动载荷的部分 方向。 负载在包装区域中脱离，并且拉伸包装材料分配器被接合并且通过相同的旋转，水平和垂直的运输工具被运输到包装区域，以通过使用一次的方式将拉伸包装材料包裹在一起的拉伸包装材料 再次，相同的旋转，水平和垂直载体以使分配器围绕负载旋转。
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公开(公告)号：US5749206A
公开(公告)日：1998-05-12
申请号：US555824
申请日：1995-11-09
CPC分类号： B65B11/025 , B65B2210/20
摘要： A stretch wrapping apparatus is provided for stretch wrapping a load with a stretch wrapping material. The apparatus includes a dispenser for dispensing stretch wrapping material and a mechanism for rotating the dispenser around an axis of rotation to wrap the stretch wrapping material around the load. A conveyor transfers the load to and from a wrapping area, the conveyor having two sides and defining a centerline therebetween intersecting the axis of rotation. A frame supports the dispenser including at least one upright leg, only one leg of the frame being disposed on one of the sides of the conveyor and being spaced from a line perpendicularly intersecting the conveyor centerline at the axis of rotation.
摘要翻译： 提供一种拉伸包装设备，用于用拉伸包裹材料拉伸包装负载。 该装置包括用于分配拉伸包裹材料的分配器和用于围绕旋转轴线旋转分配器以将拉伸包裹材料包裹在负载周围的机构。 输送机将负载传送到包装区域和从包装区域传送，输送机具有两个侧面并且在其间限定了与旋转轴线相交的中心线。 框架支撑包括至少一个直立腿部的分配器，框架的仅一个腿设置在输送机的一侧上，并且与在旋转轴线处与输送机中心线垂直相交的线间隔开。
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公开(公告)号：US5572850A
公开(公告)日：1996-11-12
申请号：US207467
申请日：1994-03-08
CPC分类号： B65B11/045
摘要： A load of stretch wrap with a sheet of stretch wrap packaging material by feeding a sheet through a stretch wrap dispenser and stretching and dispensing from the dispenser, and providing relative rotation between the dispenser and the load to wrap the stretched sheet around the load. The portion of the sheet is weakened with a sheet weakening device, and sheet is tensioned to break the sheet at the weakened portion.
摘要翻译： 通过将片材通过拉伸包装分配器进给并从分配器进行拉伸和分配，并且提供分配器和负载之间的相对旋转以将拉伸的片材包裹在负载周围的载带拉伸包装材料。 片材的部分被薄弱化装置削弱，并且片材被张紧以在弱化部分断裂片材。
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34.发明授权
公开(公告)号：US5546730A
公开(公告)日：1996-08-20
申请号：US220592
申请日：1994-03-31
CPC分类号： B65B11/585
摘要： A load having top and bottom caps is stretch wrapped at a wrapping station having turntable and a dispenser for dispensing stretch wrap packaging material, and a corner board placer for placing a corner board having tapered top and bottom edges on each corner of the load. With the load positioned on the turntable, the corner board placer is controlled by a controller to perform the steps of forming an acute angle between first and second portions of the corner board, and moving the corner board toward the corner until the first and second portions have been inserted between the top and bottom caps. The controller then causes the corner board placer to perform the steps of opening the corner board to substantially form a right angle, and simultaneously placing the first and second portions of the corner board proximate respective sides of the load by moving the corner board toward the corner in a direction oblique to the respective sides while maintaining the first and second portions generally parallel with the respective sides. A restrainer is provided for holding each corner board in place to allow subsequent corner board placement on another corner of the load. The turntable is rotated to wrap the load with the corner board placed on the corners of the load.
摘要翻译： 具有顶盖和底盖的负载在具有转台和用于分配拉伸包装材料的分配器的包装站处被拉伸包裹，以及角板放置器，用于将具有锥形顶部和底部边缘的角板放置在负载的每个角上。 当负载位于转台上时，角板放置器由控制器控制，以执行在角板的第一和第二部分之间形成锐角的步骤，并且使拐角板朝向拐角移动直到第一和第二部分 已插入顶盖和底盖之间。 然后，控制器使角板放置器执行打开角板以基本形成直角的步骤，并且通过将拐角板朝向角部移动来同时将角板的第一和第二部分靠近负载的相应侧面 在相对于各个侧面倾斜的方向上，同时保持第一和第二部分大致平行于相应的侧面。 提供了一个限制器，用于将每个角板保持在适当的位置，以便随后的角板放置在负载的另一个角上。 转盘旋转以将负载与放置在负载角落上的角板包起来。
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公开(公告)号：US5522203A
公开(公告)日：1996-06-04
申请号：US745208
申请日：1991-08-15
CPC分类号： B29C55/08 , B29C55/18 , B65B11/025 , B65B11/045
摘要： Stretch wrapping packaging material on a load includes introducing such wrapped packaging material onto tips of projecting portions of the first grooved rollers so that the packaging material spans the nonprojecting portions of the first grooved roller. The web of the packaging material on the first grooved roller are transported in the direction generally parallel to the grooves by powering the first grooved roller. The web of the packaging material spanning the nonprojecting portions of the first grooved roller is impinged by the tips of the projecting portions of an idling second grooved roller to stretch the sheet between the projecting portions of the first and second grooved rollers in a direction transverse to the direction in which the sheet is transported. The web is preferably separated from second grooved surface either before or simultaneous with its separation from the first grooved roller.
摘要翻译： 在负载上的拉伸包装材料包括将这种包裹的包装材料引入到第一带槽辊的突出部分的尖端上，使得包装材料跨越第一带槽辊的非投影部分。 通过对第一带槽辊进行供电，第一带槽辊上的包装材料的网沿大致平行于槽的方向输送。 跨越第一带槽辊的非投影部分的包装材料的腹板被空转第二带槽辊的突出部分的尖端撞击，以在第一和第二带槽辊的突出部分之间沿横向于 纸张的运输方向。 在与第一开槽辊分离之前或同时，幅材优选地与第二开槽表面分离。
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公开(公告)号：US5161349A
公开(公告)日：1992-11-10
申请号：US595884
申请日：1990-10-02
CPC分类号： B29C55/08 , B29C55/18 , B65B11/025 , B65B11/045
摘要： Stretch wrapping packaging material on a load includes introducing stretch wrap packaging material onto V shaped tips of projecting portions of a first grooved roller so that the packaging material spans the nonprojecting portions of the first grooved roller. The web of packaging material and the first grooved roller are transported in the direction generally parallel to the grooves. The web of packaging material spanning the nonprojecting portions of the first grooved roller is impinged with V shaped tips of projecting portions of a second grooved roller. The tips of the projecting portions of the second grooved roller are transported at a speed which is less than the speed of the tips of the projecting portions of the first grooved roller. The tips of the projecting portions of the second grooved roller moves at a speed which stretches the web between the first and second grooved surfaces in a direction transverse to the direction in which it is transported and minimizes any stretching of the web in the direction in which the web is transported. The web is stretched between the projecting portions of the first and second grooved rollers in a direction transverse to the direction in which the web is transported. The web is separated from the first and second grooved surfaces and wrapped onto a load by providing relative rotation between the load and a dispensing mechanism for the web.
摘要翻译： 在负载上的拉伸包装材料包括将拉伸包装材料引入到第一带槽辊的突出部分的V形尖端上，使得包装材料跨越第一带槽辊的非投影部分。 包装材料的卷材和第一带槽辊沿着大致平行于凹槽的方向输送。 跨越第一带槽辊的非投影部分的包装材料的卷材冲入第二带槽辊的突出部分的V形尖端。 第二带槽辊的突出部分的尖端以小于第一带槽辊的突出部分的尖端的速度的速度传送。 第二带槽辊的突出部分的尖端以在第一和第二带槽表面之间沿横向于其输送方向的方向延伸纤维网的速度移动，并且使幅材的任何拉伸方向最小化， 网络被运送。 幅材在与第一和第二带槽辊的突出部分沿横向于纸幅传送方向的方向上拉伸。 网与第一和第二沟槽表面分离，并通过在载体和用于网的分配机构之间提供相对旋转而卷绕到负载上。
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公开(公告)号：US4953336A
公开(公告)日：1990-09-04
申请号：US395041
申请日：1989-08-17
CPC分类号： B65B11/008 , B65B11/58 , B65B2210/16 , B65B2210/18
摘要： A film web is dispensed from a film web dispenser and wrapped around a bundle by moving the bundle into an applicator mandrel, revolving the film web dispenser relative to the applicator mandrel, dispensing the film web from the film web dispenser on to the applicator mandrel at a constant supply speed. The film web, wrapped around the applicator mandrel, is transported beyond the downstream end of the applicator mandrel, the bundle is moved beyond the downstream end of the applicator mandrel and the film web is applied from the applicator mandrel onto the bundle so as provide a containment force in the film web after it is applied onto the bundle. A dual stage wrapping system is used in such a manner that each orbiting dispenser is restrained to dispense the film web at a constant supply speed less than the lowest film demand speed at the applicator mandrel and independent of the tension on the film web between the film web dispenser and the applicator mandrel. The applicator mandrel is positioned to resist crushing or disalignment of the bundle or subunits of the bundle within the applicator mandrel and also modifies its position to modify the wrapping cross-section of the bundle so that the web strain elongation varies substantially within a linear wrap force range above the yield point of the stress strain characteristics of the film web between the film web dispenser and the applicator mandrel.
摘要翻译： 薄膜网从薄膜卷筒纸分配器分配并通过将束移动到施加器心轴中而卷绕在捆上，使薄膜卷筒纸分配器相对于涂抹器心轴旋转，将薄膜网从薄膜卷筒纸分配器分配到涂布器心轴上 恒定的供应速度。 缠绕在施加器心轴上的薄膜网被输送超过施加器心轴的下游端，所述束移动超过施加器心轴的下游端，并且薄膜网从施加器心轴施加到束上，从而提供 将其应用于捆束后，胶片网中的收容力。 使用双级包装系统，使得每个绕动分配器被限制以以小于施加器心轴处的最低膜需求速度的恒定供给速度分配薄膜网，并且独立于薄膜上的薄膜之间的张力 纸幅分配器和涂布器芯轴。 施加器心轴被定位成抵抗施加器心轴内的束的束或子单元的破碎或不对准，并且还修改其位置以改变束的包裹横截面，使得腹板应变伸长在线性缠绕力 范围在薄膜幅材分配器和涂布器心轴之间的薄膜网的应力应变特性的屈服点之上。
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公开(公告)号：US4712686A
公开(公告)日：1987-12-15
申请号：US215250
申请日：1980-12-11
CPC分类号： B65B11/045 , A01F15/071 , A01F2015/0725 , A01F2015/0755 , A01F2015/076
摘要： A process and apparatus for pre-stretching a plastic film material above its yield point in a roller assembly comprising at least two rollers connected for rotation at different speeds during a load wrapping operation. The downstream roller is at least partially driven by the film web connected to a turntable while the upstream roller rotates at a predetermined speed slower than that of the downstream roller to induce film elongation between the rollers. The force on the film between the roller assembly and the load is reduced by a powered constant torque device connected to the rollers to bring the force to the load down to a level permitting the film elongation between the roller assembly and the load to be equal to (balanced) or less than the elongation incurred between the rollers. The force from the torque device required to bring elongation on the load in balance with the elongation between the rollers will be equal to the difference between the force required to elongate the film between closely spaced rollers and the force required to hold the elongation after the film leaves the rollers corrected for the mechanical advantage and friction of the pre-stretch device. Since the film has been stretched above its yield point, the relieving of stress from the film between the rollers and the load allows the film to retain a high degree of pre-stretch elongation.
摘要翻译： 一种用于在辊组件中在其屈服点之上预先拉伸塑料膜材料的方法和装置，其包括在负载包装操作期间连接用于以不同速度旋转的至少两个辊。 下游辊至少部分地由连接到转盘的薄膜腹板驱动，而上游辊以比下游辊的预定速度更慢的速度旋转以引起辊之间的膜伸长。 辊组件和负载之间的膜上的力通过连接到辊的动力恒定扭矩装置来减小，以将负载的力降低到允许辊组件和负载之间的膜伸长率等于 （平衡）或小于辊之间产生的伸长。 来自扭矩装置的力量使负载上的伸长与辊之间的伸长率平衡将等于在紧密间隔的辊之间延长膜所需的力与在膜之后保持伸长所需的力之间的差异 使辊子校正了预拉伸装置的机械优点和摩擦力。 由于膜已经被拉伸超过其屈服点，所以减轻辊之间的膜和负载之间的应力使得膜保持高度的预拉伸伸长率。
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公开(公告)号：US4514955A
公开(公告)日：1985-05-07
申请号：US250926
申请日：1981-04-06
CPC分类号： B65B11/045
摘要： A stretch wrapping system including apparatus and process is disclosed in which rotation of a non-cylindrical or off-centered load draws film web at a continually fluctuating speed from a film roll through a prestretching device to wrap the load. The prestretching device includes an upstream roller coupled to a braking device and a downstream roller coupled to a positive torque device. The speed of the downstream roller is proportional to the take-up speed of the web on the load and the feedback device continually senses the speed of both rollers and adjusts the braking device so that the speed ratio of the rollers produces a constant stretch of the film web above its yield point. The feedback device also continually senses the forces contributed by the braking device and the torque device and continually adjusts the torque device so that the force on the web between the downstream roller and the load is held constant at a level below the yield point of the web. The feedback device may be connected to display systems to display the amount of web stretch, the web force to the load, and the amount of film web consumed in a wrapping operation.
摘要翻译： 公开了一种包括装置和方法的拉伸包裹系统，其中非圆柱形或偏心载荷的旋转以连续波动速度从薄膜卷通过预拉伸装置牵引薄膜卷以包裹负载。 预拉伸装置包括联接到制动装置的上游辊和联接到正扭矩装置的下游辊。 下游辊的速度与卷材在负载上的卷取速度成比例，并且反馈装置连续地感测两个辊的速度并调节制动装置，使得辊的速比产生恒定的拉伸 电影网络超过其屈服点。 反馈装置还连续地感测由制动装置和扭矩装置贡献的力并连续地调节扭矩装置，使得下游辊和负载之间的幅材上的力保持恒定在低于幅材的屈服点的水平 。 反馈装置可以连接到显示系统以显示幅材拉伸的量，对负载的纤维网力量以及在卷绕操作中消耗的胶卷的量。
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公开(公告)号：US4497159A
公开(公告)日：1985-02-05
申请号：US344870
申请日：1982-02-01
CPC分类号： B65B11/045
摘要： An apparatus for applying stretchable plastic film to loads for containment of the loads using two frictionally connected rollers which are held together and driven by the film web at different speeds to elongate the plastic film beyond its yield point. After the elongated film has been stretched, it is wrapped around a rotating load. The rollers are cammed apart during the beginning of the wrap so that relatively untensioned film is wrapped around the load at the beginning of the wrap. The cam force is then released and the rollers are pulled together in frictional engagement by the film web being pulled off of the film roll to stretch the film web.
摘要翻译： 使用两个摩擦连接的辊将可拉伸塑料膜施加到用于容纳载荷的装置，该摩擦连接的辊以不同的速度保持在一起并被薄膜幅材驱动，以将塑料膜延伸超过其屈服点。 细长膜被拉伸后，它被卷绕在旋转载荷上。 在包装开始期间，辊子相互分开，使得在包装开始时相对未张紧的膜被卷绕在负载上。 然后释放凸轮力，并且辊被摩擦接合地拉动在一起，使薄膜网被从薄膜辊拉出以拉伸薄膜。
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