A method of vacuum suction bagged material handling

Abstract

The application discloses a kind of vacuum adsorption bagged material handling method, to be handled by vacuum chuck with bagged material from stacking position to target position, including the steps of first lifting bagged material, bagged material is put back and second lifting bagged material.Wherein, vacuum chuck first adsorbs and lifts bagged material, and bagged material is lifted along vertical direction, can make part of hard material be broken by material self weight and packing bag upper traction force, and material will gather to the lower surface bag of packing bag and the excess bag around to the vicinity of vacuum chuck when lifting.Bagged material is put back to stacking position by vacuum chuck, and bagged material is adsorbed and lifted again, at this time, the excess part of lower surface bag and the excess bag around of packing bag have been gathered to the upper surface of packing bag due to first lifting, and more bag is inhaled into the cavity of vacuum chuck by the negative pressure of vacuum chuck due to the excess bag, increase adsorption area, and then increase the firmness of adsorption.

Description

Technical Field

[0001] This invention relates to the field of vacuum suction cup adsorption technology, and more particularly to a vacuum adsorption method for handling bagged materials. Background Technology

[0002] In existing vacuum suction cup adsorption technology for bagged materials, the adsorption process involves the vacuum suction cup being positioned on the surface of the bagged material using coordinates, and a vacuum pump generating a specified negative pressure between the vacuum suction cup and the bagged material, thereby lifting the bagged material and transporting it to a designated location.

[0003] The following problems exist during this process: Due to material compaction, the excess material around the packaging bag is supported by the compacted material. Because the bagged material is stacked on the support, the excess material on the bottom surface of the bag is compacted by the weight of the material and the support (material platform or plane supporting the bagged material), resulting in a smaller area that the vacuum suction cup can hold the packaging bag. During the acceleration and deceleration of the vacuum suction cup, the bagged material is prone to falling due to its large inertia.

[0004] Therefore, how to prevent the vacuum suction cup from adsorbing bagged materials due to material caking and resulting in weak adsorption is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a vacuum adsorption bagged material handling method, which uses a vacuum suction cup to transport the bagged material from the stacking position to the target position, thereby increasing the adsorption area between the vacuum suction cup and the packaging bag and improving the reliability of the adsorption.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A vacuum suction method for handling bagged materials, which uses a vacuum suction cup to move bagged materials from a stacking position to a target position, includes the following steps:

[0008] The bagged material is lifted for the first time, and the vacuum suction cup adsorbs the bagged material, lifting it vertically.

[0009] The vacuum suction cup returns the bagged material to its stacking position.

[0010] The vacuum suction cup picks up the bagged material a second time, then picks it up again and moves it to the target location.

[0011] Optionally, in the above-described vacuum adsorption bagged material handling method, the step of first lifting the bagged material specifically includes:

[0012] The vacuum suction cup adsorbs the bagged material, creates a preset negative pressure between the vacuum suction cup and the bagged material, and lifts the bagged material vertically.

[0013] Optionally, in the above-described vacuum suction bagged material handling method, during the first lifting step of the bagged material, the vacuum suction cup moves in a straight line along the vertical direction to lift the bagged material to a preset height.

[0014] Optionally, in the above-described vacuum adsorption bagged material handling method, in the first step of lifting the bagged material, the bagged material is adsorbed by the vacuum suction cup and lifted vertically to a preset height and maintained for a preset time before the step of putting the bagged material back is performed.

[0015] Optionally, in the above-described vacuum adsorption bagged material handling method, the second step of lifting the bagged material specifically comprises:

[0016] After the vacuum suction cup returns the bagged material to the stacking position, the vacuum suction cup re-adsorbs the bagged material and maintains the adsorption time for at least 2 seconds before lifting the bagged material and transporting it to the target location.

[0017] Optionally, in the above-described vacuum adsorption bagged material handling method, in the second step of lifting the bagged material, the vacuum suction cup transports the bagged material to the target position along a preset Bezier curve.

[0018] Optionally, in the above-described vacuum adsorption bagged material handling method, the preset Bezier curve is preset according to the stacking position and target position of the bagged material.

[0019] Optionally, in the above-described vacuum suction bagged material handling method, the vacuum suction cup is connected to a vacuum pump, and the vacuum pump is used to generate a preset negative pressure value between the vacuum suction cup and the bagged material, so that the vacuum suction cup adsorbs the bagged material.

[0020] The present invention provides a vacuum suction method for handling bagged materials, which uses a vacuum suction cup to transport bagged materials from a stacking position to a target position. The method includes the steps of first lifting the bagged material, placing the bagged material back, and second lifting the bagged material. Specifically, the vacuum suction cup first suctions the bagged material and lifts it vertically. This first lifting process breaks up some of the clumps of material due to the material's own weight and the upward traction force of the packaging bag. Furthermore, during lifting, the material's own weight causes the lower surface of the packaging bag and any excess bag material around it to gather near the vacuum suction cup.

[0021] After the initial lifting of the bagged material, the vacuum suction cup returns the bagged material to its stacking position. The vacuum suction cup then again picks up and lifts the bagged material. At this point, the initial lifting has gathered excess material from the bottom and sides of the bag onto the top surface. The vacuum suction cup then picks up the bagged material again, and due to the negative pressure, more excess material is drawn into the vacuum suction cup cavity, resulting in better adhesion and increased adhesion strength. Simultaneously, because the excess material is gathered at the vacuum suction cup, a soft connection between the vacuum suction cup and the bagged material is achieved. During the instantaneous acceleration and deceleration of the vacuum suction cup, the shaking of the bagged material itself reduces the impact inertia, preventing gaps from forming at the adhesion point and causing the bag to fall off due to inertia. The adhesion method provided by this invention breaks up some of the compacted material, increasing the adhesion area between the vacuum suction cup and the bagged material, and improving the adhesion strength. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 The flowchart of the vacuum adsorption bagged material handling method disclosed in the embodiments of the present invention is as follows. Figure 1 ;

[0024] Figure 2 The flowchart of the vacuum adsorption bagged material handling method disclosed in the embodiments of the present invention is as follows. Figure 2 . Detailed Implementation

[0025] The core of this invention is to provide a vacuum adsorption bagged material handling method, which uses a vacuum suction cup to transport the bagged material from the stacking position to the target position, thereby increasing the adsorption area between the vacuum suction cup and the packaging bag and improving the reliability of the adsorption.

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figure 1As shown, this invention discloses a vacuum suction bagged material handling method, which uses a vacuum suction cup to move bagged materials from a stacking position to a target position, including:

[0028] Step S10: First lift the bagged material;

[0029] The vacuum suction cup adsorbs and lifts the bagged material vertically. It's important to note that the bagged material, when stacked on a support, may clump during stacking. For example, powdered feed may clump due to the weight of the material above, and salt may clump due to humidity. The excess material around the bag is supported by this clump. Because the bagged material is stacked on the support, the excess material on the bottom surface of the bag is compacted by its own weight, resulting in a smaller area that the vacuum suction cup can adsorb. During acceleration and deceleration in the handling process, the bagged material, due to its significant inertia, is prone to falling. The first lift of the bagged material by the vacuum suction cup, moving vertically, causes it to detach from the support surface. This lifting process breaks up some of the clumped material due to its own weight and the upward traction of the bag. Furthermore, the weight of the material during lifting causes the excess material on the bottom surface of the bag and around the edges to gather near the vacuum suction cup. Vacuum suction cups are commonly used suction cup devices in the prior art. Their specific adsorption principle will not be elaborated here. The focus of this application is not to improve the structure of vacuum suction cups.

[0030] Step S20: Return the bagged material;

[0031] The vacuum suction cup first lifts the bagged material and moves vertically. Then, it descends vertically, returning the bagged material to its stacking position. It should be noted that the vacuum suction cup uses positioning control to return the bagged material to its stacking position, ensuring there is no tension between the vacuum suction cup and the bag.

[0032] Step S30: Lift the bagged material for the second time;

[0033] After the bagged material is returned to its original position, the vacuum suction cup re-adheres and lifts the bagged material, transporting it to the target location. During the first lift, excess bag material from the bottom and sides is gathered onto the top surface of the packaging bag. This second suction increases the suction area, thus enhancing the adhesion. Simultaneously, the gathering of excess bag material at the suction cup creates a soft connection between the suction cup and the bagged material. During the instantaneous acceleration and deceleration of the suction cup, the bag's own movement reduces impact inertia, preventing gaps from forming at the suction point and causing the bag to fall out.

[0034] The adsorption method provided by this invention breaks down some of the clumped material, increases the adsorption area between the vacuum suction cup and the bagged material, and improves the reliability of the adsorption.

[0035] like Figure 2 As shown in the embodiment of the present invention, the vacuum suction bagged material handling method, specifically step S10, the first lifting of the bagged material, involves: adsorbing the bagged material using a vacuum suction cup, creating a preset negative pressure value between the vacuum suction cup and the bagged material, and then lifting the bagged material vertically. The vacuum suction cup is positioned to the surface of the bagged material using coordinates, creating a preset negative pressure value between them, thereby allowing the vacuum suction cup to adsorb the bagged material. After the vacuum suction cup has adsorbed the bagged material for the first time, the bagged material is lifted and moved vertically. It should be noted that the specific value of the preset negative pressure value is not limited here; it can be set according to the actual situation, as long as it is sufficient for the vacuum suction cup to adsorb the bagged material.

[0036] Based on the above embodiment, in step S10, during the first lifting of the bagged material, the vacuum suction cup moves linearly in the vertical direction to lift the bagged material to a preset height. Specifically, the preset height is pre-set by software, and the specific height value is not limited here; it can be set according to the actual situation, but it must be sufficient to allow the bagged material to detach from the surface of the support.

[0037] The vacuum suction bagged material handling method disclosed in this invention involves, in step S10 (first lifting of the bagged material), a vacuum suction cup adsorbs the bagged material and lifts it vertically to a preset height, maintaining this height for a preset time, before proceeding to step S20 (replacing the bagged material). After the vacuum suction cup lifts the bagged material to the preset height for the first time and maintains it for a certain preset time, the vacuum suction cup then descends vertically, placing the bagged material back to its stacking position. It should be noted that the specific value of the preset time is not limited here; those skilled in the art can set it according to actual conditions.

[0038] The vacuum suction bagged material handling method disclosed in this invention includes step S30, the second lifting of the bagged material, which specifically involves: after the vacuum suction cup returns the bagged material to the stacking position, step S21, the vacuum suction cup adsorbs the bagged material again and maintains the adsorption time for at least 2 seconds before lifting the bagged material and transporting it to the target position. At this point, because of the first lifting, the excess bag material on the lower surface and around the edges has gathered on the upper surface of the bag. Due to the negative pressure of the vacuum suction cup, more of the excess bag material is drawn into the vacuum suction cup cavity, resulting in better adsorption and increased adhesion.

[0039] The vacuum adsorption bagged material handling method disclosed in this embodiment of the invention, in step S30, when the bagged material is lifted for the second time, the vacuum suction cup transports the bagged material to the target position along a preset Bezier curve.

[0040] Based on the above embodiments, a preset Bézier curve is pre-set according to the stacking position of the bagged material and the target position. After the Bézier curve is set by software, when the vacuum suction cup lifts the bagged material for the second time, the vacuum suction cup moves according to the preset Bézier curve to transport the bagged material to the target position.

[0041] The vacuum adsorption bagged material handling method disclosed in this invention involves a vacuum suction cup connected to a vacuum pump. The vacuum pump is used to generate a preset negative pressure value between the vacuum suction cup and the bagged material, so that the vacuum suction cup adsorbs the bagged material.

[0042] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0043] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0044] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0045] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A method of vacuum suction bagged material handling to handle a bagged material by a vacuum suction cup from a stacking position to a target position, characterized by, The method comprises the following steps: lifting the bagged material for the first time, adsorbing the bagged material by the vacuum chuck, lifting the bagged material along the vertical direction to a preset height, and maintaining for a preset time, so that the bagged material is broken under the action of its own gravity; putting back the bagged material, and the vacuum chuck puts the bagged material back to the stacking position; lifting the bagged material for the second time, adsorbing and lifting the bagged material again by the vacuum chuck, maintaining the adsorption time for at least 2s, then lifting the bagged material again, and carrying the bagged material to the target position, wherein the carrying path is a Bezier curve preset according to the stacking position and the target position of the bagged material.

2. The vacuum suction bagging method according to claim 1, wherein The first lifting step of the bagged material is specifically: adsorbing the bagged material by the vacuum chuck, and generating a preset negative pressure value between the vacuum chuck and the bagged material, and lifting the bagged material along the vertical direction.

3. The vacuum suction bagging method according to claim 1, wherein In the first lifting step of the bagged material, the vacuum chuck moves linearly along the vertical direction to lift the bagged material to a preset height.

4. The vacuum suction bagging method according to any one of claims 1 to 3, wherein The vacuum chuck is connected to a vacuum pump, and the vacuum pump is used to generate a preset negative pressure value between the vacuum chuck and the bagged material, so that the vacuum chuck adsorbs the bagged material.

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