Suction device and suction system

Abstract

This utility model discloses a material suction device and a material suction system. The material suction device includes a suction pipe and a support frame. The suction pipe has a suction port and a discharge port at its two ends, respectively. The support frame is disposed on the outer wall of the suction pipe and surrounds the perimeter of the suction port. The support frame is used to open the bag opening of the material bag and form a suction space communicating with the suction port at the bag opening. At least one arc-shaped chamfer is provided at the end of the support frame away from the discharge port. A first guide slope is also provided at the end of the support frame away from the discharge port. The support frame includes a first connecting surface and a second connecting surface arranged opposite each other along the radial direction of the suction pipe. The first guide slope is connected to the first connecting surface and / or the second connecting surface by an arc-shaped chamfer. The first guide slope is inclined towards the central axis of the suction pipe from the discharge port to the suction port, thereby preventing the support frame from obstructing the suction port and improving the material conveying effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of material conveying, and in particular to a material suction device and a material suction system. Background Technology

[0002] Existing material suction devices often have suction guns that can easily suck up material bags, causing the suction gun to fail to pick up the material inside the bag and interrupting the suction operation. Furthermore, powder can easily clog the suction nozzle of the suction gun, thereby reducing the material conveying effect and efficiency. Utility Model Content

[0003] In view of this, one objective of this utility model is to provide a material suction device and a material suction system to solve the technical problems in the prior art where the suction gun in the material suction device easily sucks up the material bag, causing the suction gun to fail to suck up the material in the material bag and interrupting the material suction operation, and powder easily blocks the suction nozzle of the suction gun, thereby reducing the material conveying effect and conveying efficiency.

[0004] In a first aspect, this utility model provides a material suction device, including a suction tube and a support frame. The suction tube has a suction port and a discharge port at its two ends. The support frame is disposed on the outer wall of the suction tube and surrounds the periphery of the suction port. The support frame is used to open the opening of a material bag and form a suction space communicating with the suction port at the opening of the material bag. The end of the support frame away from the discharge port has at least one arc-shaped chamfer, and the end of the support frame away from the discharge port also has a first guiding slope. The support frame includes a first connecting surface and a second connecting surface disposed opposite each other along the radial direction of the suction tube. The first guiding slope is connected to the first connecting surface and / or the second connecting surface through the arc-shaped chamfer. The first guiding slope is inclined towards the central axis of the suction tube from the discharge port to the suction port.

[0005] In conjunction with the first aspect, in some implementations of the first aspect, the end of the support frame away from the discharge port is further provided with a second guide slope, the second guide slope being connected to the first guide slope through the arc-shaped chamfer, and the inclination direction of the second guide slope being opposite to the inclination direction of the first guide slope.

[0006] In conjunction with the first aspect, in some implementations of the first aspect, the support frame includes a plurality of support members, which are spaced apart along the circumferential direction of the suction pipe, and the plurality of support members are constructed as at least one of a support plate and a support rod.

[0007] In conjunction with the first aspect, in some implementations of the first aspect, the suction pipe includes a conveying pipe and an air supply pipe. The air supply pipe is disposed on the outer side wall of the conveying pipe, and the conveying pipe is provided with a conveying channel connecting the suction port and the discharge port. The air supply pipe is provided with an air supply channel located between the inner side wall of the air supply pipe and the outer side wall of the air supply pipe along the axial direction of the suction pipe; or, an air supply channel is formed between the inner side wall of the air supply pipe and the outer side wall of the conveying pipe, one end of the air supply channel is connected to the suction space, and the other end of the air supply channel is connected to an external air supply device.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the end of the air supply pipe away from the discharge port is provided with a plurality of air supply holes that communicate with the air supply channel and the suction space, and the plurality of air supply holes are spaced apart along the circumferential direction of the suction pipe around the periphery of the suction port.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, the suction device further includes a bushing tube, which is sleeved on the outer wall of the air supply pipe. The bushing tube is provided with an air pressure balance channel located between the inner wall of the bushing tube and the outer wall of the bushing tube along the axial direction of the suction pipe; or, an air pressure balance channel is formed between the inner wall of the bushing tube and the outer wall of the air supply pipe, one end of the air pressure balance channel is connected to the suction space, and the other end of the air pressure balance channel is connected to the outside air.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the bushing tube includes a tube body and a connecting end cap disposed at at least one end of the tube body, each of the connecting end caps being provided with a plurality of air pressure balance holes communicating with the air pressure balance channel and the suction space.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the area of ​​the outer contour of the cross-section of the connecting end cap along the radial direction of the suction tube gradually decreases from the tube body to the connecting end cap.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, each of the support members is connected to the outer wall of the connecting end cap and the outer wall of the air supply pipe, and at least one of the air pressure balance holes is provided between two adjacent support members.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, the support member includes a first support portion and a second support portion, the first support portion and the second support portion being sequentially connected along the axial direction of the suction pipe, the first support portion being connected to the bushing pipe, and the second support portion being connected to the air supply pipe; or, the first support portion abutting against the bushing pipe, and the second support portion being connected to the air supply pipe; or, the first support portion being connected to the bushing pipe, and the second support portion abutting against the air supply pipe.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the bushing includes a tube body and a connecting end cap disposed on the tube body near the suction port, and the first support portion is connected to or abuts the connecting end cap; or, the bushing includes only a tube body, and the first support portion is disposed between the bushing and the air supply pipe, and is fixedly connected to at least one of the bushing and the air supply pipe.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the suction pipe further includes a filter screen installed at the suction port.

[0016] Secondly, this utility model provides a material suction system, including a material bag, a frame, and a material suction device as described above. The material suction device is installed on the frame and is used to transport the material in the material bag.

[0017] The suction device and suction system provided in this embodiment of the utility model, in a first aspect, are based on the addition of a support frame. The support frame is disposed on the outer wall of the suction tube and surrounds the perimeter of the suction port. The support frame is used to open the opening of the material bag and form a suction space at the opening that communicates with the suction port. The support frame is disposed on the outer wall of the suction tube, thereby preventing the support frame from obstructing the suction port and improving the suction efficiency of the suction port. In a second aspect, the support frame can be inserted into the material bag and open the opening of the material bag, thereby preventing material from clogging the suction port. This improves the material conveying effect and efficiency. Thirdly, the curved chamfer prevents debris from contaminating the material bag due to the support frame scraping against it, improving material quality. Furthermore, the curved chamfer eliminates sharp edges, reducing the risk of scratches or punctures during operation, enhancing safety, and improving the overall aesthetics of the suction device. Fourthly, the first guide slope guides the support frame as it is inserted into the material bag opening, facilitating quick and reliable insertion and improving conveying efficiency. Specifically, in the radial direction of the suction pipe, the distance between the first guide slope and the central axis of the suction pipe gradually decreases from the discharge port to the suction port. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the material suction system provided in an embodiment of the present invention.

[0020] Figure 2 yes Figure 1 A schematic diagram of the first embodiment of the material suction device of the material suction system.

[0021] Figure 3 yes Figure 2 Enlarged view of a portion of the material suction device.

[0022] Figure 4 yes Figure 1 A schematic diagram of a partial structure of the suction device of the suction system in the second embodiment.

[0023] Figure 5 yes Figure 2 A cross-sectional view of the material suction device in the diagram.

[0024] Figure 6 yes Figure 1 A first-view structural schematic diagram of the third embodiment of the material suction device of the material suction system.

[0025] Figure 7 yes Figure 6 A schematic diagram of the material suction device from a second perspective.

[0026] Figure 8 yes Figure 6 A cross-sectional view of the material suction device in the diagram.

[0027] Main reference numerals: Suction system - 1000; Material bag - 100; Bag body - 110; Bag opening - 120; Frame - 300; Suction device - 500; Suction pipe - 10; Suction port - 101; Discharge port - 102; Suction space - 103; Conveying pipe - 11; Conveying channel - 1101; Air supply pipe - 12; Air supply channel - 1201; Air supply hole - 1202; Air supply port - 1203; Sensor - 13; Filter screen - 15; Support Support frame - 30; Chamfered corner - 301; First guide slope - 302; Second guide slope - 303; First connecting surface - 305; Second connecting surface - 306; Support component - 31; First support part - 311; Second support part - 312; Bushing tube - 40; Air pressure balance channel - 401; Air pressure balance hole - 402; Tube body - 41; Connecting end cap - 42; Central axis - P; Axial direction - X; Radial direction - Y; Circumferential direction - Z.

[0028] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] It is understood that the terminology in the specification, claims, and accompanying drawings of this utility model is for describing specific embodiments only and is not intended to limit the utility model. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Unless the context clearly states otherwise, the singular forms "a" and "described" are also intended to include the plural forms. The term "comprising," and any variations thereof, are intended to cover non-exclusive inclusion. Furthermore, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of this utility model, wherein terms indicating direction such as up, down, left, and right refer only to the position of the illustrated structure in the corresponding drawings. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set on" 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The following description describes preferred embodiments of the present invention; however, the foregoing description is intended to illustrate the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.

[0032] Please see Figure 1 , Figure 1 This is a schematic diagram of the material suction system 1000 provided in this embodiment of the present invention. The material suction system 1000 includes a material bag 100, a frame 300, and a material suction device 500. The material suction device 500 is mounted on the frame 300 and is used to transport the material inside the material bag 100. Specifically, the material suction system 1000 also includes a negative pressure generator. The negative pressure generator is connected to the material suction device 500 and is used to drive the material suction device 500 to suck the material inside the material bag 100 from the suction port 101 into the inner cavity of the material suction device 500, and then discharge it from the discharge port 102 to a preset station, thereby realizing the extraction of material from the material bag 100. The negative pressure generator can be, but is not limited to, a negative pressure fan.

[0033] The material bag 100 is used to store materials. The material bag 100 includes a bag body 110 and a bag opening 120 disposed on the bag body 110. The bag body 110 can be cylindrical, cubic, cuboid, etc. The bag opening 120 can be cylindrical, elliptical, square, etc. In some embodiments, the material bag 100 also includes a cover. The cover is disposed at a position corresponding to the bag opening 120 and is used to close or open the bag opening 120. The cover is detachably connected to the bag body 110, for example, the cover and the bag body 110 can be detachably connected together by a zipper structure, Velcro structure, or other mounting structure. Of course, in some other embodiments, the cover and the bag body 110 can also be integrally formed.

[0034] Understandably, the suction system 1000 can open the bag opening 120 by operating the cover cloth with external force; or, the material bag 100 can open the bag opening 120 by piercing the cover cloth and / or the bag body 110 with a knife. Thus, the suction device 500 can convey the material inside the material bag 100 after being inserted into the bag opening 120.

[0035] For example, in this embodiment, the material can be a battery material. Battery materials include a variety of materials, such as, but not limited to, positive electrode materials, negative electrode materials, conductive agents, etc. In this embodiment, the material is illustrated as a battery material. It can be understood that the material can also be other materials, such as food materials, pharmaceutical materials, fertilizer materials, building materials, etc., and the category of the material is not limited here.

[0036] It should be noted that, Figure 1 The purpose is merely to illustrate the arrangement of the material bag 100, the frame 300 and the suction device 500, and is not to make specific limitations on the connection positions, connection relationships and specific structures of each component. Figure 1 This illustration of the material suction system 1000 is merely a structural representation of an embodiment of the present invention and does not constitute a specific limitation on the material suction system 1000. In other embodiments of the present invention, the material suction system 1000 may include... Figure 1 The system may include more or fewer components, or combinations of certain components, or different components. For example, the suction system 1000 may also include, but is not limited to, a bag-tapping device, a lifting device, etc. The bag-tapping device is used to tap the material bag 100 to shake off the material adhering to the material bag 100, thereby improving the feeding efficiency and feeding effect of the suction system 500. The lifting device is used to drive the suction system 500 or the material bag 100 to move up and down.

[0037] Please refer to the following: Figure 2 and Figure 3 , Figure 2 yes Figure 1 A schematic diagram of the structure of the suction device 500 of the suction system 1000 in the first embodiment; Figure 3 yes Figure 2 The image shows an enlarged view of a partial structure of the suction device 500. The suction device 500 includes a suction pipe 10 and a support frame. The suction pipe 10 has a suction port 101 and a discharge port 102 at its two ends, respectively. The support frame 30 is disposed on the outer wall of the suction pipe 10 and surrounds the perimeter of the suction port 101. The support frame 30 is used to open the bag opening 120 of the material bag 100 and forms a suction space 103 at the bag opening 120 that communicates with the suction port 101. The end of the support frame 30 away from the discharge port 102 has at least one arc-shaped chamfer 301. The end of the support frame 30 away from the discharge port 102 also has a first guide slope 302. Along the radial direction Y of the suction pipe 10, the support frame 30 includes a first connecting surface 305 and a second connecting surface 306 disposed opposite to each other. The first guide slope 302 is connected to the first connecting surface 305 and / or the second connecting surface 306 by an arc chamfer 301. The first guide slope 302 is inclined towards the central axis P of the suction pipe 10 from the discharge port 102 to the suction port 101.

[0038] The suction device 500 provided in this embodiment of the present invention, in a first aspect, is based on the addition of a support frame 30. The support frame 30 is disposed on the outer wall of the suction tube 10 and surrounds the periphery of the suction port 101. The support frame 30 is used to open the bag opening 120 of the material bag 100 and forms a suction space 103 with the material bag 100 at the bag opening 120, which is connected to the suction port 101. The support frame 30 is disposed on the outer wall of the suction tube 10, thereby preventing the support frame 30 from blocking the suction port 101 and improving the suction efficiency of the suction port 101. In a second aspect, the support frame 30 can be inserted into the material bag 100 and open the bag opening 120 of the material bag 100, thereby preventing the material from being blocked. Material blockage at the suction port 101 improves the material conveying effect and efficiency. Thirdly, the curved chamfer 301 prevents debris from contaminating the material bag 100 caused by the support frame 30 scraping against it, improving material quality. Furthermore, the curved chamfer 301 eliminates sharp edges, reducing the risk of scratches or punctures during operation, enhancing safety, and improving the overall aesthetics of the suction device 500. Fourthly, the first guide slope 302 guides the support frame 30 as it is inserted into the bag opening 120 of the material bag 100, facilitating quick and reliable insertion and improving conveying efficiency. Specifically, in the radial direction Y of the suction pipe 10, the distance between the first guide slope and the central axis P of the suction pipe 10 gradually decreases from the discharge port 102 to the suction port 101.

[0039] For the sake of accuracy, all references to direction in this article should be expressed in terms of direction. Figure 2For reference, the term "axial direction X" as used in the embodiments and claims herein refers to the direction parallel to the central axis P of the suction tube 10, wherein the extension direction of the X-axis is the up-down direction (where the positive X-axis is up); the term "radial direction Y" refers to the direction perpendicular to the central axis P of the suction tube 10, i.e., along the radial direction of the cross-section of the suction tube 10, wherein the extension direction of the Y-axis is the left-right direction (where the positive Y-axis is right); the term "circumferential direction Z" refers to the circumferential direction of the suction tube 10, i.e., the direction surrounding the central axis P of the suction tube 10, wherein the extension direction of the Z-axis is the front-back direction (where the positive Z-axis is back). The axial direction X, radial direction Y, and circumferential direction Z together constitute the three orthogonal directions of the suction tube 10. For ease of description, the up-down, left-right, and front-back orientations in this utility model are relative positions and do not constitute a limitation on implementation. The length, width, and height directions of the suction tube 10 can be customized according to the specific structure of the product and the perspective presented in the accompanying drawings, and this utility model does not impose specific limitations.

[0040] For example, in this embodiment, the support frame 30 extends higher than the suction pipe 10 in the axial direction X. Therefore, the portion of the support frame 30 protruding relative to the suction pipe 10 can support the material bag 100, preventing the material bag 100 from blocking the suction port 101 and preventing material from clogging at the suction port 101, thereby improving the material conveying effect and efficiency. Specifically, in the axial direction X of the suction pipe 10, the end of the support frame 30 away from the discharge port 102 extends outward relative to the suction pipe 10. Of course, in some embodiments, the support frame 30 is flush with the suction pipe 10 in the axial direction X or recessed inward relative to the side of the suction pipe 10 towards the discharge port 102; this embodiment of the present invention does not impose specific limitations.

[0041] In some embodiments, a second guide slope 303 is further provided at the end of the support frame 30 away from the discharge port 102. The second guide slope 303 is connected to the first guide slope 302 by an arc-shaped chamfer 301. The inclination direction of the second guide slope 303 is opposite to that of the first guide slope 302. Thus, the provision of the second guide slope 303 can guide the material into the suction port 101, and can increase the space on the side of the suction port 101, preventing material blockage in the suction port 101, and improving the reliability and smoothness of material conveying.

[0042] In this embodiment, both the first guide slope 302 and the second guide slope 303 are constructed as planes, thereby reducing the processing difficulty. Of course, in some embodiments, the first guide slope 302 and the second guide slope 303 can also be constructed as curved surfaces, thereby reducing material accumulation, improving the aesthetics of the appearance, eliminating sharp edges, reducing the risk of scratches or punctures during operation, and improving safety.

[0043] In some embodiments, the support frame 30 includes a plurality of support members 31. The plurality of support members 31 are spaced apart along the circumferential direction Z of the suction pipe 10. Thus, on the one hand, material can enter the suction space 103 evenly from the gaps between adjacent support members 31, preventing material from clogging the suction port 101, thereby improving the material conveying effect and efficiency; on the other hand, it ensures that the support frame 30 can open the bag opening 120 of the material bag 100, while reducing the contact area between the support frame 30 and the material bag 100, reducing wear caused by the support frame 30 on the material bag 100. Of course, in some embodiments, the support frame 30 also includes connectors, and the plurality of support members 31 are connected by connectors to form an integral structure, thereby improving the overall structural strength of the support frame 30.

[0044] Please refer to the following: Figure 3 and Figure 4 , Figure 4 yes Figure 1 A schematic diagram of a partial structure of the suction device 500 in the second embodiment of the suction system 1000. Multiple support members 31 are configured as at least one of a support plate and a support rod. (As shown...) Figure 3 As shown, in the first embodiment, all the multiple support members 31 are constructed as support rods, thereby reducing the air resistance within the suction space 103 and improving the material conveying efficiency. The support rods are constructed as cylindrical rods. Specifically, the radial cross-section of the support rod perpendicular to its extension direction is circular. The radial cross-section of the support rod perpendicular to its extension direction can also be elliptical, rectangular, polygonal, etc., and this embodiment of the present invention does not impose specific limitations.

[0045] In the first embodiment, each support member 31 is provided with two arc-shaped chamfers 301. One arc-shaped chamfer 301 is connected to the first guide slope 302 and the first connecting surface 305 of the support member 31; the other arc-shaped chamfer 301 is connected to the first guide slope 302 and the second connecting surface 306 of the support member 31. Of course, in some embodiments, the arc-shaped chamfers 301 may be set to one or more, and this embodiment of the present invention does not make specific limitations.

[0046] like Figure 4 As shown, in the second embodiment, all the multiple support members 31 are constructed as support plates, thereby improving the structural strength of the support frame 30 and the stability and reliability of the connection between the support frame 30 and the suction pipe 10. Exemplarily, in this embodiment, the plane of the support plate is parallel to the axial direction X of the suction pipe 10, thereby reducing air resistance within the suction space 103 and improving material conveying efficiency. Of course, in some embodiments, the plane of the support plate may also be set at an angle to the axial direction X of the suction pipe 10.

[0047] In the second embodiment, each support member 31 is provided with an arc-shaped chamfer 301. The arc-shaped chamfer 301 is connected to the first guide slope 302 and the second connecting surface 306 of the support member 31. Of course, in some embodiments, there may be multiple arc-shaped chamfers 301, and this embodiment of the present invention does not specifically limit the number of arc-shaped chamfers 301. For example, the arc-shaped chamfer 301 may also be connected to the first guide slope 302 and the first connecting surface 305 of the support member 31.

[0048] Please refer to the following: Figure 2 , Figure 3 and Figure 5 , Figure 5 yes Figure 2 A cross-sectional view of the suction device 500. Exemplarily, in this embodiment, the suction pipe 10 includes a conveying pipe 11 and an air supply pipe 12. The air supply pipe 12 is disposed on the outer wall of the conveying pipe 11. The conveying pipe 11 is provided with a conveying channel 1101 connecting the suction port 101 and the discharge port 102. The air supply pipe 12 is provided with an air supply channel 1201 located between the inner wall and the outer wall of the air supply pipe 12 along the axial direction X of the suction pipe 10; or, an air supply channel 1201 is formed between the inner wall of the air supply pipe 12 and the outer wall of the conveying pipe 11. One end of the air supply channel 1201 communicates with the suction space 103, and the other end of the air supply channel 1201 communicates with an external air supply device. Therefore, the air supply device provides positive pressure gas through the air replenishment channel 1201, which blows the material inside the material bag 100 into the suction port 101, thus preventing the material from accumulating at the suction port 101 and improving the material conveying effect and efficiency. In addition, it keeps the pressure inside the material bag 100 balanced, facilitating the smooth operation of the suction device 500.

[0049] Exemplarily, in this embodiment, an air supply port 1203 is provided at the end of the air supply pipe 12 away from the suction port 101. In some embodiments, the suction device 500 further includes a sensor 13. The sensor 13 is used to detect the pressure in the air supply channel 1201, thereby determining whether the suction device 500 is blocked. Exemplarily, the sensor 13 is located at the air supply port 1203. Of course, in some embodiments, the sensor 13 may also be located near the air supply port 1203 or at other locations in the air supply channel 1201, and this embodiment of the present invention does not specifically limit the location. It can be understood that when the suction port 101 of the conveying pipe is blocked, the pressure in the air supply channel 1201 measured by the sensor 13 is greater than or equal to a preset pressure value; when the suction port 101 of the conveying pipe is not blocked, the pressure in the air supply channel 1201 measured by the sensor 13 is less than the preset pressure value. Thus, the suction device 500 can intervene in the blocked conveying pipe in a timely manner according to the detection result of the sensor 13, thereby improving the material conveying effect and conveying efficiency.

[0050] The end of the air supply pipe 12 furthest from the discharge port 102 is provided with multiple air supply holes 1202 that communicate with the air supply channel 1201 and the suction space 103. These multiple air supply holes 1202 are spaced Z-intervals around the suction port 101. Therefore, having multiple air supply holes 1202 ensures that gas is evenly distributed around the suction port 101, resulting in a wider airflow coverage area and more stable suction effect. This prevents material from clogging the suction port 101 and improves the material conveying effect and efficiency.

[0051] In this embodiment, a plurality of air replenishing holes 1202 are evenly and spaced apart along the circumferential direction Z of the suction pipe 10. In some embodiments, the plurality of air replenishing holes 1202 are arranged radially from the center of the suction port 101. Thus, on the one hand, the radial arrangement of the plurality of air replenishing holes 1202 enables uniform airflow distribution, which reduces the possibility of material accumulation or blockage at the suction port 101, ensuring continuous and stable material conveying; on the other hand, it ensures that the air replenishing holes 1202 have good air replenishing efficiency, while avoiding the problem of excessive dust generation during material conveying caused by excessively large openings of the air replenishing holes 1202. In some other embodiments, the air replenishing hole 1202 may also be a single hole.

[0052] The number of air supply channels 1201 corresponds one-to-one with the number of air supply holes 1202. Of course, in some embodiments, the number of air supply channels 1201 may be less than the number of air supply holes 1202; for example, one air supply channel 1201 may communicate with multiple air supply holes 1202. This embodiment of the present invention does not impose a specific limitation. Exemplarily, in this embodiment, the number of air supply channels 1201 can be set to multiple. Multiple air supply channels 1201 can be set independently of each other; in other words, two adjacent air supply channels 1201 are isolated from each other, thereby improving the stability of the uniform distribution of airflow. In some embodiments, the air supply channel 1201 may also be set to one.

[0053] In some embodiments, the suction device 500 further includes a bushing 40. The bushing 40 is sleeved on the outer wall of the air supply pipe 12. An air pressure balance channel 401 is provided in the bushing 40 along the axial direction X of the suction pipe 10, located between the inner wall of the bushing 40 and the outer wall of the bushing 40; or, an air pressure balance channel 401 is formed between the inner wall of the bushing 40 and the outer wall of the air supply pipe 12. One end of the air pressure balance channel 401 communicates with the suction space 103, and the other end of the air pressure balance channel 401 communicates with the outside air. Therefore, on the one hand, the air guide channel can adjust the amount of air replenishment in the air replenishment channel 1201 to meet the different feeding requirements of the suction device 500; on the other hand, the air guide channel can form a positive pressure under the negative pressure in the suction pipe 10 and replenish air to the bag opening 120 side of the ton bag, thus playing a passive air replenishment role, saving energy consumption, reducing production costs, and at the same time making the pressure inside the material bag 100 equal to the outside, which facilitates the smooth operation of the suction device 500.

[0054] The bushing 40 includes a pipe body 41 and a connecting end cap 42 disposed at at least one end of the pipe body 41. Each connecting end cap 42 is provided with a plurality of pressure balancing holes 402 communicating with the pressure balancing channel 401 and the suction space 103. As a result, the gas provided by the auxiliary channel can be evenly distributed around the suction port 101, thereby preventing material from clogging the suction port 101 and improving the material conveying effect and conveying efficiency.

[0055] For example, in this embodiment, the number of connecting end caps 42 is set to two. Two connecting end caps 42 are respectively provided at both ends of the tube body 41, thereby increasing the connection area between the bushing tube 40 and the air supply tube 12, and improving the reliability and stability of the connection between the bushing tube 40 and the air supply tube 12. In some embodiments, the number of connecting end caps 42 is set to one, and the tube body 41 is only provided with a connecting end cap 42 at the end near the suction port 101, thereby avoiding the problem of increased air resistance due to blockage of the air pressure balance channel 401 between the bushing tube 40 and the air supply tube 12 on the side near the suction port 101. Of course, in other embodiments, the tube body 41 may also be provided with a connecting end cap 42 only at the end near the discharge port 102.

[0056] For example, in this embodiment, a plurality of pressure balancing holes 402 are spaced apart along the circumferential direction Z of the suction pipe 10. Of course, in some embodiments, the plurality of pressure balancing holes 402 are spaced apart along the radial direction Y of the suction pipe 10. Naturally, the plurality of pressure balancing holes 402 can also be randomly distributed; this embodiment of the present invention does not impose specific limitations. The shape of the pressure balancing holes 402 can be, but is not limited to, arc-shaped, trapezoidal, rectangular, triangular, circular, elliptical, etc.

[0057] The number of pressure balancing channels 401 corresponds one-to-one with the number of pressure balancing holes 402. Of course, in some embodiments, the number of pressure balancing channels 401 may be less than the number of pressure balancing holes 402; for example, one pressure balancing channel 401 may be connected to multiple pressure balancing holes 402. This embodiment of the invention does not impose a specific limitation. Exemplarily, in this embodiment, the number of pressure balancing channels 401 can be set to multiple. Multiple pressure balancing channels 401 can be set independently of each other; in other words, two adjacent pressure balancing channels 401 are isolated from each other, thereby improving the stability of the uniform distribution of airflow. In other embodiments, the pressure balancing channel 401 may also be set to one.

[0058] In some embodiments, the area of ​​the outer contour of the cross-section of the connecting end cap 42 along the radial direction Y of the suction pipe 10 gradually decreases from the pipe body 41 to the connecting end cap 42. Therefore, on the one hand, the conical connecting end cap 42 can better withstand pressure, thereby reducing the risk of deformation or damage to the connecting end cap 42 under air pressure; on the other hand, the conical shape of the connecting end cap 42 can increase the area of ​​the regulating hole, thereby improving the air replenishment effect and efficiency; furthermore, the conical shape of the connecting end cap 42 helps gas to naturally accumulate at the top of the connecting end cap 42, allowing gas to be quickly discharged from the regulating hole. Of course, in some embodiments, the area of ​​the outer contour of the cross-section of the connecting end cap 42 along the radial direction Y of the suction pipe 10 remains unchanged from the pipe body 41 to the connecting end cap 42.

[0059] Each support member 31 is connected to the outer wall of the connecting end cap 42 and the outer wall of the air supply pipe 12. At least one air pressure balancing hole 402 is provided between two adjacent support members 31. Thus, the support member 31 can guide the gas discharged from the regulating hole, preventing material from clogging the suction port 101, thereby improving the material conveying effect and efficiency. Exemplarily, in this embodiment, two air pressure balancing holes 402 are provided between two support members 31.

[0060] For example, in this embodiment, the shape of the bushing 40 is adapted to the shape of the bag opening 120. In other words, the dimension of the bushing 40 in the radial direction Y of the suction pipe 10 is equal to or slightly smaller than the dimension of the bag opening 120 in the radial direction Y. The dimension of the support frame 30 in the radial direction Y of the suction pipe 10 is equal to the dimension of the bushing 40 in the radial direction Y of the suction pipe 10. Thus, after the support frame 30 is inserted into the bag opening 120, it can open the bag opening 120, while the bushing 40 can seal the bag opening 120, thereby preventing dust from the bag opening 120 from polluting the external environment.

[0061] Please refer to it again. Figure 3 and Figure 4The support frame 30 and the suction pipe 10 can be integrally formed, thereby improving the reliability and stability of the connection between the support frame 30 and the suction pipe 10. Of course, in some embodiments, the support frame 30 and the suction pipe 10 are independently arranged and fixedly connected, thereby reducing the processing difficulty of the support frame 30 and the suction pipe 10, and facilitating the replacement, cleaning, and maintenance of the support frame 30 and the suction pipe 10. The support frame 30 and the suction pipe 10 can be directly fixedly connected, or they can be indirectly fixedly connected.

[0062] The support member 31 includes a first support portion 311 and a second support portion 312. The first support portion 311 and the second support portion 312 are sequentially connected along the axial direction X of the suction pipe 10. In some embodiments, the first support portion 311 is connected to the bushing pipe 40, and the second support portion 312 is connected to the air supply pipe 12. In other embodiments, the first support portion 311 rests against the bushing pipe 40, and the second support portion 312 is connected to the air supply pipe 12. In still other embodiments, the first support portion 311 is connected to the bushing pipe 40, and the second support portion 312 rests against the air supply pipe 12.

[0063] For example, such as Figure 3 As shown, when the support member 31 is constructed as a support rod, both ends of the support member 31 are connected to the bushing tube 40 and the air supply tube 12, respectively. Specifically, the first support part 311 and the second support part 312 are connected to the bushing tube 40 and the air supply tube 12, respectively. This improves the reliability and stability of the connection between the support rod and the bushing tube 40 and the air supply tube 12; it also avoids the problem of the support rod tearing the material bag 100, reduces the risk of scratches or punctures during operation, enhances safety, and improves the overall aesthetics of the suction device 500. The first support part 311 and the second support part 312 are detachably connected to the bushing tube 40 and the air supply tube 12, facilitating the assembly, processing, maintenance, and replacement of the bushing tube 40, the air supply tube 12, and the conveying tube 11, etc. Of course, at least one of the first support part 311 and the second support part 312 is non-detachably connected to the bushing tube 40 and the air supply tube 12, thereby improving the stability and reliability of the connection between the support frame 30 and the suction tube 10 or the bushing tube 40.

[0064] like Figure 4As shown, when the support member 31 is constructed as a support plate, the first support portion 311 is connected to the bushing tube 40, and the second support portion 312 is connected to the air supply pipe 12; or, the first support portion 311 is attached to the bushing tube 40, and the second support portion 312 is connected to the air supply pipe 12, thereby reducing the assembly difficulty of the support frame 30 with the air supply pipe 12 or the bushing tube 40. For example, the support plate can be integrally formed with the bushing tube 40 or the air supply pipe 12, thereby avoiding the problem of material accumulation at the connection gap and improving the connection stability. Of course, in some embodiments, the support plate can also be fixedly connected to the bushing tube 40 or the air supply pipe 12 by means of snap-fit, installation structure, etc., and this utility model embodiment does not make specific limitations. When the support member 31 is constructed as a support plate, the first support portion 311 and the second support portion 312 can be connected to the bushing tube 40 and the air supply pipe 12 respectively.

[0065] In some embodiments, the bushing 40 includes a tube body 41 and a connecting end cap 42 disposed at one end of the tube body 41 near the suction port 101. A first support portion 311 is connected to or abuts against the connecting end cap 42. This reduces the precision requirements for the alignment and assembly of the bushing 40 and the support 31, facilitating operation. Figure 4 As shown, at least a portion of the sidewall of the support plate, parallel to its thickness direction, abuts against the outer wall of the suction pipe 10, thereby preventing material accumulation in the gap between the support plate and the suction pipe 10. Specifically, the support plate abuts against the end face of the connecting end cap 42 and the outer wall of the air supply pipe 12.

[0066] Please refer to the following: Figures 6 to 8 , Figure 6 yes Figure 1 A first-view structural schematic diagram of the suction device 500 of the suction system 1000 in the third embodiment; Figure 7 yes Figure 6 A structural schematic diagram of the material suction device 500 from a second perspective; Figure 8 yes Figure 6 A cross-sectional view of the material suction device 500. In the third embodiment, the arrangement of the support frame 30 differs from that in the first and second embodiments.

[0067] In the third embodiment, the bushing 40 includes only the tube body 41, and the first support 311 is disposed between the bushing 40 and the air supply pipe 12, and is fixedly connected to at least one of the bushing 40 and the air supply pipe 12. Thus, the bushing 40 and the air supply pipe 12 can be fixedly connected together by the support frame 30, thereby reducing the number of components in the suction device 500, improving the overall compactness of the suction device 500, and reducing product manufacturing costs.

[0068] The first support 311 is inserted into the air pressure balance channel 401. The first support 311 abuts against the bushing 40 and the air supply pipe 12. Specifically, the first connecting wall of the support 31 abuts against the inner wall of the bushing 40, and the second connecting wall of the support 31 abuts against the outer wall of the air supply pipe 12. The multiple support members 31 of the support frame 30 divide the end of the air pressure balance channel 401 near the suction port 101 into multiple air pressure balance holes 402.

[0069] In some embodiments, the suction pipe 10 further includes a filter screen 15. The filter screen 15 is installed at the suction port 101. Thus, on the one hand, the filter screen 15 can prevent large, agglomerated particles from entering the conveying channel 1101, thereby increasing the air resistance of the conveying channel 1101 and improving the conveying effect and efficiency; on the other hand, the large, agglomerated particles can be dispersed into smaller particles under the action of the filter screen 15, improving the smoothness of material conveying. It should be noted that the structure and arrangement of the filter screen 15 are applicable to the suction device 500 of the first and second embodiments, and this utility model embodiment does not impose specific limitations.

[0070] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A material suction device (500), characterized in that, include: The suction pipe (10) has a suction port (101) and a discharge port (102) at its two ends respectively. A support frame (30) is disposed on the outer wall of the suction pipe (10) and surrounds the periphery of the suction port (101). The support frame (30) is used to open the bag opening (120) of the material bag (100) and form a suction space (103) with the material bag (100) at the bag opening (120) that is connected to the suction port (101). The end of the support frame (30) away from the discharge port (102) is provided with at least one arc-shaped chamfer (301). The end of (102) is also provided with a first guide slope (302). The support frame (30) includes a first connecting surface (305) and a second connecting surface (306) arranged opposite to each other along the radial direction (Y) of the suction pipe (10). The first guide slope (302) is connected to the first connecting surface (305) and / or the second connecting surface (306) through the arc chamfer (301). The first guide slope (302) is inclined towards the central axis (P) of the suction pipe (10) from the discharge port (102) to the suction port (101).

2. The material suction device (500) as described in claim 1, characterized in that, The supporting frame (30) is provided with a second guide slope (303) at the end away from the discharge port (102). The second guide slope (303) is connected to the first guide slope (302) through the arc chamfer (301). The inclination direction of the second guide slope (303) is opposite to the inclination direction of the first guide slope (302).

3. The material suction device (500) as described in claim 1, characterized in that, The support frame (30) includes a plurality of support members (31), which are spaced apart along the circumferential direction (Z) of the suction pipe (10), and the plurality of support members (31) are constructed as at least one of a support plate and a support rod.

4. The material suction device (500) as described in claim 3, characterized in that, The suction pipe (10) includes a conveying pipe (11) and an air supply pipe (12). The air supply pipe (12) is located on the outer side wall of the conveying pipe (11). The conveying pipe (11) is provided with a conveying channel (1101) that connects the suction port (101) and the discharge port (102). The air supply pipe (12) is provided with an air supply channel (1201) located between the inner side wall of the air supply pipe (12) and the outer side wall of the air supply pipe (12) along the axial direction (X) of the suction pipe (10). Alternatively, an air supply channel (1201) is formed between the inner side wall of the air supply pipe (12) and the outer side wall of the conveying pipe (11). One end of the air supply channel (1201) is connected to the suction space (103), and the other end of the air supply channel (1201) is connected to an external air supply device.

5. The material suction device (500) as described in claim 4, characterized in that, The end of the air supply pipe (12) away from the discharge port (102) is provided with a plurality of air supply holes (1202) that are connected to the air supply channel (1201) and the suction space (103). The plurality of air supply holes (1202) are arranged at intervals along the circumferential direction (Z) of the suction pipe (10) around the periphery of the suction port (101).

6. The material suction device (500) as described in claim 4, characterized in that, The suction device (500) further includes a bushing (40), which is sleeved on the outer wall of the air supply pipe (12). The bushing (40) is provided with an air pressure balance channel (401) between the inner wall of the bushing (40) and the outer wall of the bushing (40) along the axial direction (X) of the suction pipe (10); or, an air pressure balance channel (401) is formed between the inner wall of the bushing (40) and the outer wall of the air supply pipe (12). One end of the air pressure balance channel (401) is connected to the suction space (103), and the other end of the air pressure balance channel (401) is connected to the outside air.

7. The suction device (500) as described in claim 6, characterized in that, The bushing (40) includes a tube body (41) and a connecting end cap (42) disposed at at least one end of the tube body (41). Each connecting end cap (42) is provided with a plurality of air pressure balance holes (402) communicating with the air pressure balance channel (401) and the suction space (103).

8. The material suction device (500) as described in claim 7, characterized in that, The area of ​​the outer contour of the cross section of the connecting end cap (42) along the radial direction (Y) of the suction tube (10) gradually decreases from the tube body (41) to the connecting end cap (42).

9. The suction device (500) as described in claim 7, characterized in that, Each of the support members (31) is connected to the outer side wall of the connecting end cap (42) and the outer side wall of the air supply pipe (12), and at least one of the air pressure balance holes (402) is provided between two adjacent support members (31).

10. The suction device (500) as described in claim 6, characterized in that, The support member (31) includes a first support part (311) and a second support part (312). The first support part (311) and the second support part (312) are connected sequentially along the axial direction (X) of the suction pipe (10). The first support part (311) is connected to the bushing pipe (40), and the second support part (312) is connected to the air supply pipe (12). Alternatively, the first support part (311) is attached to the bushing pipe (40), and the second support part (312) is connected to the air supply pipe (12). Alternatively, the first support part (311) is connected to the bushing pipe (40), and the second support part (312) is attached to the air supply pipe (12).

11. The suction device (500) as described in claim 10, characterized in that, The bushing (40) includes a tube body (41) and a connecting end cap (42) disposed on the tube body (41) near the suction port (101), and the first support part (311) is connected to or abuts the connecting end cap (42); or, the bushing (40) includes only the tube body (41), and the first support part (311) is disposed between the bushing (40) and the air supply pipe (12), and is fixedly connected to at least one of the bushing (40) and the air supply pipe (12).

12. The feeding device (500) as described in any one of claims 1-11, characterized in that, The suction pipe (10) also includes a filter screen (15), which is installed at the suction port (101).

13. A material suction system (1000), characterized in that, It includes a material bag (100), a frame (300), and a suction device (500) as described in any one of claims 1-12, the suction device (500) being mounted on the frame (300) and used to convey material in the material bag (100).

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