Wide-area synchronous negative pressure adsorption device for bagged materials

By designing a wide-area synchronous negative pressure adsorption device, using sponge adsorption cotton and a porous structure, combined with a flow amplification component and a pressurization pipe network, the problem of wrinkling and falling off of bagged silica during transportation was solved, achieving stable gripping and uniform adsorption.

CN121990367APending Publication Date: 2026-05-08BENGBU WANKEGUI MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BENGBU WANKEGUI MATERIAL TECH CO LTD
Filing Date
2026-02-25
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional equipment is prone to causing the bags of silica to wrinkle, be partially ungrabbed, or be torn when handling them. In addition, suction cups can easily damage the bag or cause the material to fall off due to insufficient suction.

Method used

A wide-range synchronous negative pressure adsorption device was designed, which uses block-shaped sponge adsorption cotton and multiple sets of adsorption holes, combined with a flow expander, a direct current channel and a booster pipe mechanism to form a parallel air path network. The uniform distribution and stable regulation of airflow are achieved through a dual-wheel booster, ensuring the rapid establishment of the negative pressure field.

Benefits of technology

It achieves stable material gripping, avoids wrinkling and falling off, ensures uniform dispersion of adsorption force, and quickly establishes a uniform and stable negative pressure field, thereby improving the synchronicity and flexibility of material handling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of chemical packaging, in particular to a wide-area synchronous negative pressure adsorption device for bagged materials. The air purifier comprises an outer shell, adsorption cotton, adsorption holes, an exhaust port, a flow expanding piece, a straight flow channel and a pressurizing pipe mechanism. The bottom face of the outer shell is a hollow face, the adsorption cotton is installed in the outer shell, the multiple sets of adsorption holes are neatly arranged and formed in the bottom face of the adsorption cotton, the set of exhaust ports are formed in one side of the outer shell, the two flow expanding pieces are arranged on the edge of one side of the outer shell side by side, and the straight flow channel is transversely arranged at the bottom ends of the two flow expanding pieces. The straight flow channel is located in an interlayer between the outer shell and the adsorption cotton, and the pressurizing pipe mechanism is arranged in an interlayer reserved between the adsorption cotton and the outer shell. By means of the blocky sponge adsorption cotton and the multiple sets of adsorption holes arranged in order in the surface of the blocky sponge adsorption cotton, a large-area flexible contact surface is provided, adsorption force is evenly dispersed, and damage to a bag body due to stress concentration is avoided.
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Description

Technical Field

[0001] This invention relates to the field of chemical packaging technology, and in particular to a wide-range synchronous negative pressure adsorption device for bagged materials. Background Technology

[0002] Silica is an inorganic compound with the chemical formula SiO2, widely found in nature in minerals such as quartz and sand. In industrial applications, high-purity silica is typically present as a white powder or granules, often packaged in long, flexible bags as a desiccant, filler, or chemical raw material. Due to its flexible packaging and easily sliding surface, automated handling processes require high standards for uniformity, synchronization, and flexibility in adsorption to prevent the bags from wrinkling, breaking, or falling off.

[0003] However, existing equipment often encounters the following problems during use:

[0004] (1) Traditional bagged silica, due to its long and narrow shape, may cause the material bag to wrinkle or be partially not gripped when it is clamped and transported by the column palletizer. In severe cases, the material bag may be torn by the gripper.

[0005] (2) If the conveying end of the column palletizer is changed to a suction cup, the local suction force is too strong and easily damages the bag body because the force area of ​​the adsorption is too small, or the overall suction force is insufficient, causing the material to fall off during the conveying process and failing to quickly establish a uniform and stable negative pressure field on the large adsorption surface. Summary of the Invention

[0006] The main objective of this invention is to provide a wide-range synchronous negative pressure adsorption device for bagged materials. This invention solves at least one of the aforementioned problems to a certain extent.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A wide-range synchronous negative pressure adsorption device for bagged materials, comprising:

[0009] The outer casing has a hollowed-out bottom surface.

[0010] Absorbent cotton is installed inside the outer shell; and an interlayer is left between the absorbent cotton and the outer shell.

[0011] The absorbent cotton has multiple sets of absorbent holes arranged neatly on its bottom surface.

[0012] An exhaust port is provided, and a set of the exhaust ports is provided on one side of the outer casing.

[0013] Two flow amplification components are provided, and the two flow amplification components are arranged side by side on one side edge of the outer casing.

[0014] A DC channel is arranged laterally at the bottom ends of the two current-amplifying components, and the DC channel is located in the interlayer between the outer shell and the absorbent cotton.

[0015] A pressure boosting tube mechanism is built into the interlayer between the absorbent cotton and the outer shell.

[0016] include:

[0017] A dual-wheel booster is installed on the top surface of the outer casing and is connected to the booster pipe mechanism.

[0018] The dual-wheel supercharger includes:

[0019] A pressurized housing, the bottom surface of which extends into the outer shell;

[0020] A baffle is disposed inside the pressurization housing to divide the pressurization housing into two regions of equal area;

[0021] A first turbine component is built into one side of the baffle.

[0022] The second turbine component is built into the other side of the baffle.

[0023] The booster pipe mechanism also includes:

[0024] The booster tube mechanism includes a first tube type and a second tube type. The first tube type is connected to the area where the first turbine component is built, and the second tube type is connected to the area where the second turbine component is built.

[0025] The first tubular type includes:

[0026] The first shunt tube has one end connected to one side of the DC channel, and the other end connected to the area where the first turbine component is built.

[0027] The first boost pipe is located in the extension direction of the other end of the first split pipe, and one end of the first boost pipe is connected to the area where the first turbine component is built, and the other end of the first boost pipe is connected to the exhaust port.

[0028] The second type of tubing includes:

[0029] The second booster tube has the same shape as the first booster tube, and one end of the second booster tube is connected to one side of the DC channel, while the other end of the second booster tube is connected to the area where the second turbine component is built.

[0030] The second splitter pipe has the same shape as the first splitter pipe, and one end of the second splitter pipe is connected to the area where the second turbine component is built, and the other end of the second splitter pipe is connected to the exhaust port.

[0031] Also includes:

[0032] A supply valve, located above the housing;

[0033] A vacuum generator, wherein the vacuum generator is connected to the air inlet of the supply valve;

[0034] A branch pipe, which has two exhaust ports, has an inlet end connected to the vacuum generator;

[0035] The system includes two guide pipes, one end of which is connected to two exhaust ports of the branch pipe, and the other end of which is connected to the top of the two amplification components.

[0036] The absorbent cotton is made of sponge material.

[0037] The overall shape of the two amplification components is narrower at the top and wider at the bottom.

[0038] The baffle is S-shaped.

[0039] The first and second tubular tubes are positioned directly above the adsorption holes, and both the first and second tubular tubes are connected to the adsorption holes below them.

[0040] The first booster pipe is a winding, twisting pipe.

[0041] The first branch pipe is a group of gas pipelines arranged side by side.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] (1) In view of the problem that traditional methods are prone to causing wrinkling, damage or falling off of materials, this design provides a large area of ​​flexible contact surface through block sponge adsorption cotton and multiple sets of adsorption holes arranged neatly on its surface, so that the adsorption force is evenly distributed and stress concentration is avoided to prevent damage to the bag body; at the same time, the first pressure tube and the second pressure tube are arranged alternately on the adsorption surface to form a strong suction skeleton network covering the length and width directions, ensuring the adsorption area and adsorption strength, so that the material is firmly grasped as a whole, which is not easy to fall off and does not require local strong pulling, thus solving the problems of wrinkling, local non-grabbing and easy falling off.

[0044] (2) To address the problem of not being able to quickly establish a uniform and stable negative pressure field on a large adsorption surface, this design achieves initial deceleration and lateral diffusion of the airflow through a diffuser and a direct current channel. Then, a parallel air path network is formed by a booster pipe mechanism (including the first and second split pipes and the booster pipe), combined with a dual-wheel booster (its internal S-shaped baffle and the first and second turbine components) to dynamically equalize and stabilize the airflow. This collaborative working system ensures that the negative pressure airflow can reach each adsorption pore with minimal time difference and almost synchronously, thereby instantly establishing a uniform and stable negative pressure field on the entire adsorption surface, achieving a rapid, synchronous, and balanced adsorption effect. Attached Figure Description

[0045] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the detailed embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0046] Figure 1 This is a schematic diagram of the overall shape of the invention.

[0047] Figure 2 This is a schematic diagram of the bottom of the present invention.

[0048] Figure 3 This is a schematic diagram of a dual-wheel supercharger.

[0049] Figure 4 This is a diagram of the booster pipe mechanism of the present invention.

[0050] Figure 5 This is a schematic diagram of the booster tube mechanism of the present invention.

[0051] The following are the labels in the diagram: 1. Outer shell; 2. Absorbent cotton; 3. Absorbent hole; 4. Exhaust port; 5. Flow amplifier; 6. Direct current channel; 7. Pressure boosting pipe mechanism; 8. Dual-wheel pressure boosting component; 81. Pressure boosting shell; 82. Baffle; 83. First turbine component; 84. Second turbine component; 71. First tube type; 72. Second tube type; 711. First branch pipe; 712. First pressure boosting pipe; 721. Second pressure boosting pipe; 722. Second branch pipe; 9. Supply valve; 10. Vacuum generator; 11. Branch pipe; 12. Guide pipe. Detailed Implementation

[0052] 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.

[0053] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] like Figures 1-5 As shown, the present invention provides a wide-area synchronous negative pressure adsorption device for bagged materials. The wide-area synchronous negative pressure adsorption device for bagged materials includes an outer shell 1, adsorption cotton 2, adsorption holes 3, exhaust port 4, flow diffuser 5, direct current channel 6, and pressure boosting pipe mechanism 7.

[0055] The bottom surface of the outer shell 1 is perforated, and the absorbent cotton 2 is a block-shaped sponge installed inside the outer shell 1. There is an interlayer between the absorbent cotton 2 and the outer shell 1. Due to the uniform distribution of adsorption force and the fact that the absorbent cotton 2 is made of sponge material, the bag body is subjected to gentle force, without local stress concentration, avoiding pulling damage. The elastic deformation of the absorbent cotton 2 adapts to the unevenness of the bag body surface, increasing the contact area and reducing the pressure per unit area. Multiple sets of adsorption holes 3 are opened, and the multiple sets of adsorption holes 3 are neatly arranged and opened on the bottom surface of the absorbent cotton 2. All adsorption holes 3 are interconnected with the pressurization pipe through the interlayer space to form a parallel air path network. When the airflow enters the interlayer from the direct flow channel 6, due to the similar flow channel resistance and symmetrical path length, the pressure wave is transmitted to each adsorption hole 3 almost simultaneously. A set of exhaust ports 4 is provided, and a set of exhaust ports 4 is opened on one side of the outer shell 1. Two flow diffusers 5 are provided, and the two flow diffusers 5 are placed side by side on one side edge of the outer shell 1. The overall shape of the two flow diffusers 5 is narrow at the top and wide at the bottom. Through their gradually expanding cross section, the airflow is decelerated, pressurized and smoothly introduced into the downstream flow channel, reducing flow loss.

[0056] In this invention, such as Figure 4As shown, the DC channel 6 is arranged laterally at the bottom of the two flow diffusers 5, and the DC channel 6 is located in the interlayer between the outer shell 1 and the absorbent cotton 2; the flow diffuser structure with a narrow top and wide bottom reduces the flow velocity and increases the static pressure. The lateral arrangement of the DC channel 6 allows the airflow to spread rapidly laterally in the interlayer, forming a preliminary pressure balance. The pressurization pipe mechanism 7 is built into the interlayer left between the absorbent cotton 2 and the outer shell 1. The dual-wheel pressurization component 8 is installed on the top surface of the outer shell 1; the dual-wheel pressurization component 8 is connected to the pressurization pipe mechanism 7.

[0057] In this invention, such as Figure 3 The dual-wheel supercharger 8 shown includes: a supercharger housing 81 whose bottom surface extends into the outer casing 1; an S-shaped baffle 82 disposed within the supercharger housing 81, dividing the supercharger housing 81 into two regions of equal area; the S-shaped baffle 82 divides the airflow into two paths, driving two turbines to rotate independently. Its design purpose is to split the inlet airflow in two and guide it to impact the turbine blades at a specific angle and direction, thereby improving energy conversion efficiency; the S-shaped baffle 82 divides the airflow into two paths, driving two turbines to rotate independently, the first turbine... The first tube 83 is built into one side of the baffle 82; the second turbine 84 is built into the other side of the baffle 82. The booster pipe mechanism 7 includes a first tube 71 and a second tube 72. The first tube 71 is connected to the area where the first turbine 83 is built, and the second tube 72 is connected to the area where the second turbine 84 is built. The first branch pipe 711 + the first booster pipe 712 of the first tube 71 and the second booster pipe 721 + the second branch pipe 722 of the second tube 72 are arranged symmetrically and in an alternating manner, covering the entire area of ​​the adsorption hole 3.

[0058] In this invention, the first pipe type 71 includes: a first branch pipe 711, which is a group of gas transmission pipes arranged side by side, with one end of the first branch pipe 711 connected to one side of the direct current channel 6; the other end of the first branch pipe 711 connected to the area where the first turbine component 83 is built; and a first booster pipe 712, which is a meandering pipe, located in the extension direction of the other end of the first branch pipe 711; with one end of the first booster pipe 712 connected to the area where the first turbine component 83 is built, and the other end of the first booster pipe 712 connected to the exhaust port 4; the meandering booster pipe design increases the flow channel length, and the pressure of each branch is naturally adjusted by the fluid resistance to ensure that the pressure of the end adsorption hole 3 is consistent. The second tube type 72 includes a second booster tube 721, which has the same shape as the first booster tube 712, and one end of the second booster tube 721 is connected to one side of the direct current channel 6; the other end of the second booster tube 721 is connected to the area where the second turbine component 84 is built-in. The second splitter tube 722 has the same shape as the first splitter tube 711, and one end of the second splitter tube 722 is connected to the area where the second turbine component 84 is built-in, while the other end of the second splitter tube 722 is connected to the exhaust port 4. The first tube type 71 and the second tube type 72 are positioned directly above the adsorption hole 3, and both the first tube type 71 and the second tube type 72 are connected to the adsorption hole 3 below.

[0059] In this invention, the supply valve 9 is located above the outer casing 1. The vacuum generator 10 is connected to the air inlet of the supply valve 9. The branch pipe 11 has two exhaust ports 4. The air inlet of the branch pipe 11 is connected to the vacuum generator 10. There are two guide pipes 12. One end of the two guide pipes 12 is connected to the two exhaust ports 4 of the branch pipe, and the other end of the two guide pipes 12 is connected to the top of the two diffusers 5. The first pressure boosting pipe 712 and the second pressure boosting pipe 721 are single-pipe type, so the pressure is stronger. Therefore, the distribution of the two pressure boosting pipes forms the suction range of the adsorption cotton 2 in the inclined space. This suction range includes the length of the adsorption cotton 2, so that the adsorption area is large enough and the material will not fall off easily. The staggered arrangement also makes the suction range include the width of the adsorption cotton 2, ensuring the balance of the overall suction force, that is, there will be no situation where the material is sucked up on one side and falls off on the other side. The remaining parts are filled with a multi-pipeline configuration, consisting of the first diversion pipe 711 and the second diversion pipe 722, ensuring that the entire absorbent cotton 2 can generate suction, mainly playing an auxiliary role.

[0060] It should be noted that, in using the wide-area synchronous negative pressure adsorption device for bagged materials designed in this invention, the device should be placed on a flat workbench or fixed support, ensuring that the bottom perforated surface of the outer shell 1 faces downwards. Check whether the surface of the adsorption cotton 2 is clean and whether the adsorption holes 3 are blocked; confirm that the exhaust port 4 is securely connected to the external pipeline. Lay the long strip of bagged silica flat directly below the adsorption mechanism, adjusting its position to cover the area of ​​the adsorption holes 3. Connect the air source and open the supply valve 9. The supply valve 9 delivers compressed air to the vacuum generator 10. The vacuum generator 10 operates, generating a negative pressure airflow, which is split into two guide pipes 12 via the branch pipe 11. The negative pressure airflow enters the top of the two diffusers 5 through the guide pipes 12. The negative pressure airflow diffuses from top to bottom in the diffusers 5 and enters the direct current channel 6. The direct current channel 6 distributes the airflow laterally and evenly to the interlayer space between the outer shell 1 and the adsorption cotton 2. The pressurization mechanism 7 in the interlayer receives airflow through the first diversion pipe 711 and the second pressurization pipe 721, and the pressure is regulated by the dual-wheel pressurization component 8: the airflow enters the pressurization housing 81 of the dual-wheel pressurization component 8, is guided by the S-shaped baffle 82, and drives the first turbine component 83 and the second turbine component 84 to rotate respectively. The turbine rotation further increases the pressure, making the overall airflow pressure more uniform. Specifically, in the first tube type 71, the first diverter tube 711 will first receive the airflow, thereby driving the adsorption hole 3 below it to generate negative pressure. After the airflow enters the dual-wheel pressurizing component 8, the first turbine component 83 rotates to increase the negative pressure, which is introduced into the first pressurizing tube 712 and the adsorption hole 3 at its bottom, thus making the adsorption force of half of the adsorption cotton 2 more uniform. At the same time, the second pressurizing tube 721 in the second tube type 72 will also receive the airflow first. However, since the second pressurizing tube 721 only has one pipeline, the airflow pressure received is greater. After it enters the second turbine component 84, it drives the second turbine component 84 to rotate, causing the second diverter tube 722 to generate negative pressure and drive the adsorption hole 3 below it to generate suction. In this way, the entire square adsorption cotton 2 generates suction, and all adsorption holes 3 generate negative pressure suction almost simultaneously, stably adsorbing the bagged silica below onto the bottom surface of the adsorption cotton 2.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wide-range synchronous negative pressure adsorption device for bagged materials, characterized in that, include: The outer shell (1) has a hollow bottom surface; The absorbent cotton (2) is installed inside the outer shell (1); and a sandwich layer is left between the absorbent cotton (2) and the outer shell (1). Adsorption holes (3), multiple sets of adsorption holes (3) are provided, and multiple sets of adsorption holes (3) are neatly arranged and provided on the bottom surface of the adsorption cotton (2); Exhaust port (4), a set of exhaust ports (4) is provided, and a set of exhaust ports (4) is opened on one side of the outer shell (1); Two flow diffusers (5) are provided, and the two flow diffusers (5) are placed side by side on one side edge of the outer casing (1); DC channel (6), the DC channel (6) is arranged laterally at the bottom end of the two amplification components (5), and the DC channel (6) is located in the interlayer between the outer shell (1) and the absorbent cotton (2); The pressurization tube mechanism (7) is built into the interlayer between the absorbent cotton (2) and the outer shell (1).

2. The wide-range synchronous negative pressure adsorption device for bagged materials according to claim 1, characterized in that, include: A dual-wheel booster (8) is installed on the top surface of the outer casing (1) and is connected to the booster pipe mechanism (7). The dual-wheel booster (8) includes: A pressurized housing (81), the bottom surface of which extends into the outer casing (1); A baffle (82) is disposed inside the pressurization housing (81) to divide the pressurization housing (81) into two regions of equal area; The first turbine component (83) is built into one side of the baffle (82); The second turbine component (84) is built into the other side of the baffle (82).

3. The wide-range synchronous negative pressure adsorption device for bagged materials according to claim 1, characterized in that, The booster pipe mechanism (7) also includes: The booster pipe mechanism (7) includes a first pipe type (71) and a second pipe type (72). The first pipe type (71) is connected to the area where the first turbine component (83) is built, and the second pipe type (72) is connected to the area where the second turbine component (84) is built. The first tubular type (71) includes: The first shunt tube (711) has one end connected to one side of the direct current channel (6), and the other end of the first shunt tube (711) is connected to the area where the first turbine component (83) is built. The first booster pipe (712) is located in the extension direction of the other end of the first split pipe (711), and one end of the first booster pipe (712) is connected to the area built into the first turbine component (83), and the other end of the first booster pipe (712) is connected to the exhaust port (4). The second type of tube (72) includes: The second booster tube (721) has the same shape as the first booster tube (712), and one end of the second booster tube (721) is connected to one side of the DC channel (6), and the other end of the second booster tube (721) is connected to the area where the second turbine component (84) is built. The second split pipe (722) has the same shape as the first split pipe (711), and one end of the second split pipe (722) is connected to the area where the second turbine component (84) is built, and the other end of the second split pipe (722) is connected to the exhaust port (4).

4. The wide-range synchronous negative pressure adsorption device for bagged materials according to claim 1, characterized in that, Also includes: Supply valve (9), the supply valve (9) is located above the housing (1); A vacuum generator (10) is connected to the air inlet of the supply valve (9); A branch pipe (11) has two exhaust ports (4), and the air inlet of the branch pipe (11) is connected to the vacuum generator (10). The guide pipe (12) is provided in two parts. One end of the two guide pipes (12) is connected to two exhaust ports (4) of the diverter pipe, and the other end of the two guide pipes (12) is connected to the top of the two diverter components (5).

5. A wide-range synchronous negative pressure adsorption device for bagged materials according to claim 1, characterized in that, The absorbent cotton (2) is made of sponge material.

6. A wide-range synchronous negative pressure adsorption device for bagged materials according to claim 1, characterized in that, The overall shape of the two flow-expanding components (5) is narrow at the top and wide at the bottom.

7. A wide-range synchronous negative pressure adsorption device for bagged materials according to claim 3, characterized in that, The baffle (82) is S-shaped.

8. A wide-range synchronous negative pressure adsorption device for bagged materials according to claim 3, characterized in that, The first tube type (71) and the second tube type (72) are positioned directly above the adsorption hole (3), and both the first tube type (71) and the second tube type (72) are connected to the adsorption hole (3) below.

9. A wide-range synchronous negative pressure adsorption device for bagged materials according to claim 3, characterized in that, The first booster pipe (712) is a winding pipe.

10. A wide-range synchronous negative pressure adsorption device for bagged materials according to claim 3, characterized in that, The first branch pipe (711) is a group of gas transmission pipes arranged side by side.