suction device

Abstract

The utility model discloses a kind of suction devices. Suction device includes rack, suction gun, lifting structure and buffer structure. Suction gun is movably mounted on rack, to supply the free end of the suction gun can be inserted into material bag and suction material in material bag;Lifting structure is set on rack, and lifting structure includes driving part and transmission part, driving part is connected with transmission part transmission, and for driving transmission part drives suction gun to lift relative to rack;Buffer structure includes first buffer plate, second buffer plate and elastic element, first buffer plate is fixedly connected with suction gun, second buffer plate is movably connected with suction gun, and is fixedly connected with transmission part, and elastic element is elastically arranged between first buffer plate and second buffer plate. Adopt the suction device provided by the utility model, avoid the problem that suction gun is damaged due to the reaction force that material or material bag exerts is too large in lifting process, and improve the suction efficiency and suction effect of suction gun.

Description

Technical Field

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

[0002] In the existing material suction device, if the suction gun comes into contact with the material or material bag during the lifting process, causing the lifting to be obstructed, the suction gun will be subjected to the reaction force exerted by the material or material bag. When the reaction force on the suction gun is too large, it is easy to cause damage to the suction gun and blockage of the suction port of the suction gun. Utility Model Content

[0003] In view of this, one objective of this utility model is to provide a material suction device to solve the technical problem that the material suction gun in the prior art is easily damaged and the suction port of the material suction gun is blocked when subjected to excessive reaction force from the material or material bag.

[0004] This utility model provides a material suction device, including a frame, a suction gun, a lifting structure, and a buffer structure. The suction gun is movably mounted on the frame; the lifting structure is disposed on the frame so that the free end of the suction gun can extend into a material bag and suck up the material inside the bag. The lifting structure includes a driving component and a transmission component. The driving component is pulsatorically connected to the transmission component and is used to drive the transmission component to move the suction gun up and down relative to the frame. The buffer structure includes a first buffer plate, a second buffer plate, and an elastic element. The first buffer plate is fixedly connected to the suction gun, the second buffer plate is movably connected to the suction gun, and fixedly connected to the transmission component. The elastic element is elastically disposed between the first buffer plate and the second buffer plate.

[0005] In some implementations, the suction device further includes a detector, which is fixedly connected to at least one of the suction gun, the transmission component, and the first and second buffer plates. The detector is used to detect whether the distance between the first and second buffer plates is less than or equal to a preset distance.

[0006] In some implementations, the drive unit stops working when the distance between the first buffer plate and the second buffer plate is equal to or greater than a preset distance.

[0007] In some implementations, the buffer structure further includes a guide rod, which is fixedly connected to one of the first buffer plate and the second buffer plate, and movably connected to the other of the first buffer plate and the second buffer plate, with the elastic element sleeved on the outside of the guide rod.

[0008] In some implementations, the central axis of the guide rod is parallel to the lifting direction of the suction gun.

[0009] In some implementations, multiple elastic elements are provided, and these multiple elastic elements are spaced apart around the central axis of the suction gun.

[0010] In some implementations, the driving component includes a lifting frame, a driving part, and a lifting part. The lifting frame is fixed to the machine frame and is provided with a slide rail. The transmission component includes a transmission frame and a slider. The transmission frame is fixedly connected to the second buffer plate and the slider. The slider slides in cooperation with the slide rail and is drivenly connected to the lifting part. The driving part is mounted on the lifting frame and / or the machine frame and is used to drive the lifting part to drive the slider together with the suction gun to slide on the slide rail.

[0011] In some implementations, at least one end of the slide rail is provided with a limiting structure, which is used to limit the travel of the suction gun relative to the frame.

[0012] In some implementations, there are two lifting frames, the suction gun is located between the two lifting frames, and there are two sliders. The two sliders are respectively connected to both ends of the transmission frame and slide in cooperation with the two slide rails corresponding to the two lifting frames.

[0013] In some implementations, the suction device further includes a detector, and the transmission frame is connected to the second buffer plate to form a receiving groove; or, the transmission frame is provided with a receiving groove, the suction gun passes through the receiving groove, at least a portion of the elastic element and the detector are housed in the receiving groove, and the detector is used to detect whether the distance between the first buffer plate and the second buffer plate is less than or equal to a preset distance.

[0014] The material suction device provided in this embodiment of the utility model has two advantages. First, it incorporates a buffer structure, which includes a first buffer plate, a second buffer plate, and an elastic element. One of the first and second buffer plates is fixedly connected to the suction gun, while the other is fixedly connected to a transmission component and movably connected to the suction gun. The elastic element is elastically positioned between the first and second buffer plates. This reduces the distance between the first and second buffer plates when the suction gun's lifting and lowering relative to the frame is obstructed, compressing the elastic element and providing a buffering effect. This prevents damage to the suction gun due to excessive reaction force from the material or material bag during lifting and lowering, extending the service life of the suction device and preventing material blockage at the suction port of the suction tube. Second, the lifting mechanism's drive component drives the transmission component to lift and lower the suction gun relative to the frame, thereby improving the suction efficiency and effect of the suction gun on the material bag. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the material suction device provided in an embodiment of the present invention.

[0017] Figure 2 yes Figure 1 The top view of the frame of the suction device is omitted.

[0018] Figure 3 yes Figure 2 The material suction device in the middle is shown in a cross-sectional view along II.

[0019] Figure 4 yes Figure 1 A schematic diagram of a portion of the material suction device.

[0020] Figure 5 yes Figure 1 A schematic diagram of another part of the material suction device.

[0021] Key reference numerals in the attached drawings: Suction device - 100; Frame - 10; Suction gun - 20; Air supply channel - 201; Air supply port - 202; Air pressure balance channel - 203; Suction pipe - 21; Air supply pipe - 22; Auxiliary pipe - 23; Lifting structure - 30; Drive component - 31; Lifting frame - 311; Slide rail - 3111; Limiting structure - 3112; Drive unit - 312; Lifting unit - 313; Linkage unit - 314; Transmission component - 32; Receiving groove - 3201; Hole - 320 2; Transmission frame - 321; Slider - 322; Buffer structure - 50; First buffer plate - 51; Movable hole - 5101; Second buffer plate - 52; Clearance hole - 5201; Through hole - 5202; Fixing hole - 5203; Elastic element - 53; Guide rod - 54; Rod body - 541; Rod head - 542; Locking body - 543; Locking part - 5431; Extension part - 5432; Reinforced body - 544; Detector - 60; Length direction - X; Width direction - Y; Height direction - Z.

[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Please see Figure 1 , Figure 1This is a schematic diagram of the material suction device 100 provided in this embodiment of the present invention. This embodiment of the present invention provides a material suction device 100, including a frame 10, a suction gun 20, a lifting structure 30, and a buffer structure 50. The suction gun 20 is movably mounted on the frame 10. The lifting structure 30 is disposed on the frame 10 so that the free end of the suction gun 20 can extend into a material bag and suck up the material inside the bag. The lifting structure 30 includes a driving member 31 and a transmission member 32. The driving member 31 is connected to the transmission member 32 and is used to drive the transmission member 32 to lift the suction gun 20 relative to the frame 10. The buffer structure 50 includes a first buffer plate 51, a second buffer plate 52, and an elastic member 53. The first buffer plate 51 is fixedly connected to the suction gun 20, and the second buffer plate 52 is movably connected to the suction gun 20 and fixedly connected to the transmission member 32. The elastic member 53 is elastically disposed between the first buffer plate 51 and the second buffer plate 52.

[0027] The suction device 100 provided in this embodiment of the utility model, on the one hand, is based on the addition of a buffer structure 50. The buffer structure 50 includes a first buffer plate 51, a second buffer plate 52, and an elastic member 53. One of the first buffer plate 51 and the second buffer plate 52 is fixedly connected to the suction gun 20, and the other of the first buffer plate 51 and the second buffer plate 52 is fixedly connected to the transmission member 32 and movably connected to the suction gun 20. The elastic member 53 is elastically disposed between the first buffer plate 51 and the second buffer plate 52, thereby preventing the suction gun 20 from being obstructed when rising and falling relative to the frame 10. At the same time, the gap between the first buffer plate 51 and the second buffer plate 52 is reduced, and the elastic element 53 is compressed to play a buffering role, thereby avoiding the problem of damage to the suction gun 20 due to excessive reaction force applied by the material or material bag during the lifting process, extending the service life of the suction device 100, and preventing the suction port of the suction pipe 21 from being blocked; on the other hand, the driving component 31 based on the lifting mechanism drives the transmission component 32 to drive the suction gun 20 to lift relative to the frame 10, thereby improving the suction efficiency and suction effect of the suction gun 20 on the material bag.

[0028] For example, in this embodiment, the material can be a battery slurry. Battery slurry includes various materials, such as, but not limited to, solvents, conductive agents, liquids, solids, or powders, etc., which are mixed to form the battery slurry. In this embodiment, battery slurry is used as an illustration; it is understood that the material can also be other slurries, such as food, pharmaceutical, fertilizer, or building materials, etc., and the category of the material is not limited here.

[0029] It should be noted that, Figure 1 The purpose is only to schematically describe the arrangement of the frame 10, suction gun 20, lifting structure 30 and buffer structure 50, and not to make specific limitations on the connection position, connection relationship and specific structure of each component. Figure 1 The illustration of the material suction device 100 in this embodiment is merely a structural representation and does not constitute a specific limitation on the material suction device 100. In other embodiments of this utility model, the material suction device 100 may include components that are more advanced than those described above. Figure 1 The components shown may include more or fewer components, or combinations of certain components, or different components. For example, the suction device 100 may also include, but is not limited to, a pressure sensor, a battery management system, a wiring harness, etc.

[0030] For the sake of accuracy, all references to direction in this article should be expressed in terms of direction. Figure 1 For reference, the term "length direction X" as used herein refers to the arrangement direction of the two lifting frames 311 of the lifting structure 30, i.e., the left-right direction of the suction device 100 (where the positive X-axis is to the right). The term "width direction Y" refers to the arrangement direction of the lifting structure 30 and the frame 10, i.e., the front-back direction of the suction device 100 (where the positive Y-axis is forward). The term "height direction Z" refers to the direction parallel to the lifting direction of the suction gun 20, i.e., the up-down direction (where the positive Z-axis is upward). The length direction X, width direction Y, and height direction Z together constitute the three orthogonal directions of the suction device 100. 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. The length direction X, width direction Y, and height direction Z of the suction device 100 can be customized according to the specific structure of the product and the perspective of the accompanying drawings; this utility model does not impose specific limitations.

[0031] In this embodiment, the elastic element 53 can be configured as a spring. Of course, in some embodiments, the elastic element 53 can also be configured as an elastic structure such as a sheet, a plastic body, or a sponge.

[0032] The inner cavity of the suction gun 20 is connected to the negative pressure generator. The negative pressure generator is used to drive the suction gun 20 to suck the material in the material bag into the inner cavity of the suction gun 20, and then discharge it to the preset station, thereby realizing the suction of the material bag. The negative pressure generator can be, but is not limited to, a negative pressure fan.

[0033] Please refer to the following: Figures 1 to 3 , Figure 2 yes Figure 1 The top view of the suction device 100 in the figure is omitted, which is not shown in the frame 10. Figure 3 yes Figure 2The suction device 100 is shown in a cross-sectional view along section II. In some embodiments, the suction gun 20 includes a suction pipe 21 and an air supply pipe 22. The air supply pipe 22 is sleeved on the outside of the suction pipe 21. The air supply pipe 22 is provided with an air supply channel 201, or an air supply channel 201 is formed between the air supply pipe 22 and the suction pipe 21. The side wall of the air supply pipe 22 is provided with an air supply port 202 that communicates with the air supply channel 201. The air supply port 202 is used to communicate with an external air supply device. Thus, the air supply device provides positive pressure gas through the air supply channel 201 and blows it onto the material bag, thereby blowing the material in the material bag up, thereby assisting the material in the material bag to enter the suction pipe 21, preventing the material from accumulating at the suction end of the suction pipe 21, and improving the material conveying effect and conveying efficiency. In addition, it keeps the pressure inside the material bag balanced, which facilitates the smooth operation of the suction device 100.

[0034] In some embodiments, the suction gun 20 further includes an auxiliary tube 23. The auxiliary tube 23 is sleeved on the outer wall of the air supply tube 22. The auxiliary tube 23 is provided with an air pressure balance channel 203, or an air pressure balance channel 203 is formed between the auxiliary tube 23 and the air supply tube 22. The two ends of the air pressure balance channel 203 are respectively connected to the outside air. Thus, on the one hand, the air pressure balance channel 203 can adjust the air supply amount of the air supply channel 201 to meet the different feeding requirements of the suction device 100; on the other hand, the air pressure balance channel 203 can form a positive pressure under the negative pressure in the suction tube 21 and supply air to the bag opening side of the ton bag, thus playing a passive air supply role, saving energy consumption, reducing production costs, and at the same time making the pressure inside the material bag equal to the outside, which facilitates the smooth operation of the suction device 100.

[0035] For example, in this embodiment, the first buffer plate 51 is located below the second buffer plate 52 in the height direction Z of the suction device 100. The second buffer plate 52 is provided with a clearance hole 5201 that avoids the suction gun 20. The suction gun 20 is movably inserted into the clearance hole 5201, thereby improving the compactness of the structure of the suction device 100. The outer wall of the suction gun 20 is spaced apart from the hole wall of the second buffer plate 52 at the clearance hole 5201, thereby reducing wear between the suction gun 20 and the second buffer plate 52. Of course, in some embodiments, the outer wall of the suction gun 20 and the hole wall of the second buffer plate 52 at the clearance hole 5201 can slide against each other, thereby avoiding the problem of the suction gun 20 deflecting relative to the second buffer plate 52 after being obstructed. The first buffer plate 51 may also be located above the second buffer plate 52, which is not specifically limited in this embodiment of the present invention.

[0036] The first buffer plate 51 can be fixedly connected to the suction gun 20 in a non-detachable manner or in a detachable manner. The first buffer plate 51 is fixed to the outer wall of the suction gun 20. The second buffer plate 52 can be fixedly connected to the transmission component 32 in a non-detachable manner or in a detachable manner. The non-detachable fixed connection method includes, but is not limited to, adhesive bonding, integral molding, welding, etc. For example, the first buffer plate 51 is detachably fixed to the outer wall of the suction gun 20. The second buffer plate 52 is integrally molded with the transmission component 32.

[0037] Please participate as well. Figure 3 and Figure 4 , Figure 4 yes Figure 1 This is a schematic diagram of a portion of the suction device 100. In some embodiments, the suction device 100 further includes a detector 60. The detector 60 is fixedly connected to at least one of the suction gun 20, the transmission member 32, and the first buffer plate 51 and the second buffer plate 52. The detector 60 is used to detect whether the distance between the first buffer plate 51 and the second buffer plate 52 is less than or equal to a preset distance. Thus, by providing real-time feedback on the distance between the first buffer plate 51 and the second buffer plate 52 through the detector 60, the obstruction status of the suction gun 20 can be detected. This allows for timely intervention when the suction gun 20 encounters obstruction during its lifting and lowering movement, improving the accuracy and safety of the lifting and lowering movement control of the suction gun 20 and extending its service life.

[0038] For example, in this embodiment, the detector 60 is configured as a position sensor. The position sensor may include, but is not limited to, contact detection structures and non-contact detection structures. Non-contact detection structures include, but are not limited to, photoelectric switches, Hall effect sensors, or proximity switches, etc. Specifically, the detector 60 is configured as a contact detection structure. When the suction gun 20 is obstructed during its descent, the second buffer plate 52 moves closer to the first buffer plate 51 and presses against the detector 60, thereby triggering the detector 60 to generate a detection signal. The user or the suction device 100 can intervene in the obstruction of the suction gun 20 in a timely manner based on the detection signal, improving the accuracy and safety of the lifting and lowering movement control of the suction gun 20 and extending its service life.

[0039] Of course, in some embodiments, the detector 60 may also be configured as, but is not limited to, a distance sensor, a pressure sensor, or a vision sensor. Distance sensors include, but are not limited to, infrared sensors, ultrasonic sensors, laser sensors, electromagnetic sensors, radar sensors, etc.

[0040] For example, in this embodiment, the detector 60 is disposed between the first buffer plate 51 and the second buffer plate 52, and is arranged to avoid contact with the elastic member 53. Therefore, by positioning the detector 60 between the first buffer plate 51 and the second buffer plate 52, and avoiding contact with the elastic member 53, the risk of the detector 60 being falsely triggered is reduced, and the structural compactness and aesthetic appearance of the suction device 100 are improved. When the downward movement of the suction gun 20 is obstructed, the elastic member 53 deforms, and the detector 60 comes into contact with the first buffer plate 51 or the second buffer plate 52, triggering the generation of a detection signal. When the downward movement of the suction gun 20 removes the obstruction, the elastic member 53 gradually returns to its original deformation.

[0041] Of course, in some embodiments, the detector 60 may also be located in the area of ​​the first buffer plate 51 facing away from the second buffer plate 52; or, in the area of ​​the second buffer plate 52 facing away from the first buffer plate 51. This embodiment of the present invention does not make specific limitations.

[0042] When the distance between the first buffer plate 51 and the second buffer plate 52 is less than or equal to a preset distance, the drive unit 31 stops working. Therefore, by cutting off the power to the drive unit 31 when the lifting of the suction gun 20 relative to the frame 10 is obstructed, on the one hand, the risk of stalling and overload can be reduced, extending the service life of the lifting structure 30; on the other hand, it avoids the problem of the suction gun 20 being damaged by impact due to excessive reaction force applied by the material.

[0043] In some embodiments, the suction device 100 further includes a control structure. The control structure is connected to the drive unit 31 and the detector 60. The control structure is used to receive the detection signal generated by the detector 60, and to control the drive unit 31 to stop working when the detection signal meets a preset condition.

[0044] In some other embodiments, the suction device 100 also includes an on / off switch. The on / off switch is connected to the drive unit 31. Thus, a user can manually control the on / off switch based on a detection signal to stop the drive unit 31 from operating. The detection signal can be displayed on the suction device 100 or on a control base station or mobile device communicatively connected to the suction device 100.

[0045] The material suction device 100 may also include an alarm structure. The alarm structure is used to issue an alarm message when the detection signal generated by the detector 60 does not meet preset conditions. The alarm signal can be, but is not limited to, at least one of sound, vibration, light, or graphics. Thus, the user can manually control the on / off switch based on the alarm message to stop the drive unit 31 from operating.

[0046] In some embodiments, the buffer structure 50 further includes a guide rod 54. The guide rod 54 is fixedly connected to one of the first buffer plate 51 and the second buffer plate 52, and movably connected to the other of the first buffer plate 51 and the second buffer plate 52. The elastic member 53 is sleeved on the outside of the guide rod 54. Thus, on the one hand, the guide rod 54 can restrict the movement of the elastic member 53 in the radial direction of the guide rod 54, avoiding lateral displacement, torsion, or instability of the elastic member 53 when compressed or stretched; on the other hand, the guide rod 54 can define the installation position of the elastic member 53 and can withstand part of the radial force under dynamic load, protecting the elastic member 53 from the influence of non-axial forces and extending its service life; furthermore, the guide rod 54 can connect the first buffer plate 51 and the second buffer plate 52 together, improving the reliability and stability of the connection between the first buffer plate 51 and the second buffer plate 52.

[0047] In this embodiment, for example, the guide rod 54 includes a rod body 541, a rod head 542, and a locking body 543. One end of the rod body 541 is fixedly connected to the rod head 542 and movably passes through one of the first buffer plate 51 and the second buffer plate 52. The other end of the rod body 541 is fixedly connected to the locking body 543 and is fixedly connected to the other of the first buffer plate 51 and the second buffer plate 52 via the locking body 543. The first buffer plate 51 and the second buffer plate 52 are defined between the rod head 542 and the locking body 543. Thus, the rod head 542 and the locking body 543 can guide the rod 54 and the spring to perform positioning and assembly relative to the first buffer plate 51 and the second buffer plate 52.

[0048] Please participate as well. Figure 2 , Figure 3 and Figure 5 , Figure 5 yes Figure 1 This is a schematic diagram of another part of the suction device 100. The guide rod 54 is movably connected to the first buffer plate 51 and fixedly connected to the second buffer plate 52. Specifically, the first buffer plate 51 is provided with a movable hole 5101. The guide rod 54 is movably inserted into the movable hole 5101. The second buffer plate 52 is provided with a through hole 5202. The guide rod 54 is fixedly inserted into the through hole 5202. Of course, in some embodiments, the guide rod 54 is fixedly connected to the first buffer plate 51 and movably connected to the second buffer plate 52; this embodiment of the present invention does not impose specific limitations.

[0049] In some embodiments, the locking body 543 includes a locking portion 5431 and an extension portion 5432. The locking portion 5431 is bent and connected to the extension portion 5432, and is fixedly connected to the second buffer plate 52. The locking portion 5431 and the second buffer plate 52 can be fixedly connected by means of bonding, snap-fitting, or mounting structure. Exemplarily, in this embodiment, the second buffer plate 52 further includes a fixing hole 5203. The locking portion 5431 is fixed to the second buffer plate 52 by a locking structure. The extension portion 5432 is fixedly connected to the rod body 541. The extension portion 5432 and the rod body 541 can be fixedly connected by means of bonding, screwing, snap-fitting, or other methods. Thus, one end of the guide rod 54 is fixedly connected to the second buffer plate 52.

[0050] In some embodiments, the locking body 543 further includes a reinforcing body 544. The reinforcing body 544 is fixedly connected to the end of the rod 541 away from the rod head 542 and the end of the extension 5432 away from the extension 5432, thereby achieving a fixed connection between the extension 5432 and the rod 541. This improves the reliability and stability of the connection between the extension 5432 and the rod 541.

[0051] In some embodiments, the central axis of the guide rod 54 is parallel to the lifting direction of the suction gun 20. Thus, on the one hand, the elastic element 53 can provide controllable buffering force to the suction gun 20 in the direction of its movement axis, avoiding damage caused by uneven force on the suction gun 20; on the other hand, the parallel extension and retraction direction of the elastic element 53 to the central axis of the suction gun 20 also prevents the elastic element 53 from applying a lateral component force to the suction gun 20, which could cause the suction gun 20 to jam or wear during lifting relative to the frame 10.

[0052] Please refer to it again. Figure 1 and Figure 3 In some embodiments, multiple elastic elements 53 are provided, and the multiple elastic elements 53 are spaced apart around the central axis of the suction gun 20. Thus, on the one hand, the multiple elastic elements 53 work together to evenly distribute the reaction force exerted by the material or material bag on the suction gun 20, and limit the lateral swaying or rotation of the suction gun 20 during its lifting and lowering movement relative to the frame 10, thereby reducing motion swaying; on the other hand, the multiple elastic elements 53 share the load, reduce the fatigue rate of the individual elastic element 53, and extend the service life of the buffer structure 50.

[0053] The number of guide rods 54 corresponds one-to-one with the number of elastic elements 53. Each elastic element 53 is sleeved on the corresponding guide rod 54, thereby facilitating the alignment and assembly of the elastic element 53 with the first buffer plate 51 and the second buffer plate 52. Of course, in some embodiments, the number of guide rods 54 may be greater than or less than the number of elastic elements 53, and this embodiment of the present invention does not impose a specific limitation.

[0054] Please participate again. Figure 1 and Figure 5 In some embodiments, the drive component 31 includes a lifting frame 311, a drive unit 312, and a lifting unit 313. The lifting frame 311 is fixed to the frame 10 and is provided with a slide rail 3111. The transmission component 32 includes a transmission frame 321 and a slider 322. The transmission frame 321 is fixedly connected to the second buffer plate 52 and the slider 322. The slider 322 is slidably engaged with the slide rail 3111 and is drively connected to the lifting unit 313. The drive unit 312 is mounted on the lifting frame 311 and / or the frame 10, and drives the lifting unit 313 to drive the slider 322 and the suction gun 20 to slide on the slide rail 3111. Therefore, the transmission motion of the slide rail 3111 and the slider 322 drives the suction gun 20 to move up and down relative to the frame 10. On the one hand, it can improve the straightness of the motion trajectory of the suction gun 20 relative to the frame 10, thereby improving the positioning accuracy of the suction gun 20. On the other hand, it reduces the sway and vibration of the suction gun 20 during the movement, improves the smooth operation of the suction gun 20, and facilitates assembly, replacement and maintenance.

[0055] In some embodiments, at least one end of the slide rail 3111 is provided with a limiting structure 3112, which limits the travel of the suction gun 20 relative to the frame 10. Thus, the limiting structure 3112 prevents the suction gun 20 from impacting the frame 10, material bags, or other components due to overtravel, and eliminates the need to rely on complex algorithms to predict the stop position, thereby improving the safety and reliability of the lifting movement of the suction gun 20 in the suction device 100. Exemplarily, in this embodiment, two limiting structures 3112 are provided at each of the two ends of the slide rail 3111 in the lifting direction. The limiting structures 3112 are detachably or non-detachably connected to the lifting component.

[0056] For example, in this embodiment, two lifting frames 311 are provided, and the suction gun 20 is located between the two lifting frames 311. The transmission component 32 includes a transmission frame 321 and two sliders 322. The two sliders 322 are respectively connected to both ends of the transmission frame 321 and are slidably engaged with the two slide rails 3111 corresponding to the two lifting frames 311. The transmission frame 321 is fixedly connected to the second buffer plate 52. Thus, based on the transmission frame 321 being rigidly connected to the slide rails 3111 on both sides through the two sliders 322 to form a closed frame structure, on the one hand, it can effectively resist the torsional torque of the moving body during movement, and the double slide rails 3111 support and distribute the force, avoiding bending deformation caused by the force on a single slide rail 3111; on the other hand, the parallel arrangement of the double slide rails 3111 and the sliders 322 force the suction gun 20 to move in a straight line, compensate for the installation deviation or wear of a single slide rail 3111, and improve the movement accuracy of the suction gun 20.

[0057] In this embodiment, for example, a single drive unit 312 is fixedly mounted on the frame 10. Two lifting units 313 are provided. Two sliders 322 are respectively connected to the two lifting units 313. The drive unit 31 also includes two linkage units 314. The two linkage units 314 are respectively connected to the two lifting units 313. The drive unit 31 drives the two linkage units 314 to rotate the two lifting units 313, and the rotation of the two lifting units 313 drives the two sliders 322 to move up and down relative to the two slide rails 3111. Thus, the two lifting units 313 share a single drive unit 312, thereby achieving synchronous lifting and lowering of the two sliders 322, which improves the stability and reliability of the transmission unit 32 driving the suction gun 20 to move up and down; on the other hand, it reduces the number of components and saves costs.

[0058] For example, in this embodiment of the present invention, the lifting structure 30 is configured as a worm gear screw jack. Of course, in some embodiments, the lifting structure 30 may also be configured as, but is not limited to, a belt jack, a chain jack, etc.

[0059] Of course, in some embodiments, there may be two drive units 312. Each drive unit 312 may be mounted on the frame 10; or on the lifting frame 311; or on both the frame 10 and the lifting frame 311. The two drive units 312 are independently arranged and are respectively connected to the lifting unit 313, thereby simplifying the transmission path of the lifting structure 30 and facilitating maintenance, assembly and other operations.

[0060] Exemplarily, in this embodiment, the transmission frame 321 and the second buffer plate 52 are connected to form a receiving groove 3201. Specifically, the transmission frame 321 and the second buffer plate 52 are integrally formed, thereby improving the stability and reliability of the connection between the transmission frame 321 and the second buffer plate 52. Of course, the transmission frame 321 and the second buffer plate 52 can also be independently arranged and fixedly connected. In some other embodiments, the transmission frame 321 is provided with a receiving groove 3201. The second buffer plate 52 can be located inside the receiving groove 3201; or, it can be located outside the receiving groove 3201. The connection arrangement of the transmission frame 321 and the second buffer plate 52 can be set according to the actual situation, and this embodiment of the utility model does not make specific limitations.

[0061] Please participate again. Figure 2 , Figure 3 and Figure 5The suction gun 20 is inserted into the receiving groove 3201. At least a portion of the elastic element 53 and the detector 60 are housed within the receiving groove 3201. Thus, by concealing at least a portion of the elastic element 53 and the detector 60 within the receiving groove 3201, the risk of the positioning detection structure being falsely triggered is reduced, and the structural compactness and aesthetic appearance of the suction device 100 are improved.

[0062] In some embodiments, the transmission frame 321 is further provided with perforated holes 3202, thereby saving costs and reducing the weight of the suction device 100. The perforated holes 3202 penetrate through both end faces of the transmission frame 321 in the lifting direction, thereby reducing material accumulation. In this embodiment, the transmission frame 321 is provided with two perforated holes 3202 on both sides of the receiving groove 3201. The number of perforated holes 3202 can be one or more, and this embodiment of the present invention does not make a specific limitation.

[0063] Please refer to the following: Figures 1 to 3 The material suction working principle of the suction device 100 is as follows: The driving part 312 of the lifting structure 30 drives the lifting part 313 to drive the transmission component 32, together with the suction gun 20 and the buffer structure 50, to move downwards towards one side of the ton bag so that the suction chamber can suck up the material in the material bag. During the descent, if the suction gun 20 is obstructed near the front end of the material bag, the driving part 312 drives the lifting part 313 to drive the transmission component 32, together with the second buffer plate 52, to move towards the side closer to the first buffer plate 51. At this time, the elastic element 53 is gradually compressed, and the distance between the first buffer plate 51 and the second buffer plate 52 gradually decreases. When the detector 60 contacts the second buffer plate 52, a first detection signal is generated and sent to the control center of the suction device 100. The control center of the suction device 100 controls the driving part 31 to stop driving the suction gun 20 downwards according to the first detection signal. Thus, the buffer structure 50 can apply a buffering force when the suction gun 20 is obstructed from descending, thereby avoiding the problem of the suction gun 20 being damaged by excessive reaction force. When the descending motion of the suction gun 20 removes the obstruction, the elastic element 53 gradually recovers its deformation. When the detector 60 disengages from the second buffer plate 52, a second detection signal is generated and sent to the control center of the suction device 100. Based on the second detection signal, the control center of the suction device 100 controls the drive unit 31 to continue driving the suction gun 20 downwards, thereby achieving automatic material suction by the suction device 100. Of course, in some embodiments, after the descending motion of the suction gun 20 removes the obstruction, the user manually controls the suction device to control the drive unit 31 to continue driving the suction gun 20 downwards.

[0064] 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 (100), characterized in that, include: Rack (10); Suction gun (20), which is movably mounted on the frame (10) so that the free end of the suction gun (20) can extend into the material bag and suck up the material in the material bag; The lifting structure (30) is mounted on the frame (10). The lifting structure (30) includes a driving component (31) and a transmission component (32). The driving component (31) is connected to the transmission component (32) and is used to drive the transmission component (32) to lift the suction gun (20) relative to the frame (10). The buffer structure (50) includes a first buffer plate (51), a second buffer plate (52) and an elastic element (53). The first buffer plate (51) is fixedly connected to the suction gun (20), the second buffer plate (52) is movably connected to the suction gun (20) and fixedly connected to the transmission element (32), and the elastic element (53) is elastically disposed between the first buffer plate (51) and the second buffer plate (52).

2. The material suction device (100) as described in claim 1, characterized in that, The suction device (100) further includes a detector (60), which is fixedly connected to at least one of the suction gun (20), the transmission component (32), the first buffer plate (51), and the second buffer plate (52). The detector (60) is used to detect whether the distance between the first buffer plate (51) and the second buffer plate (52) is less than or equal to a preset distance.

3. The material suction device (100) as described in claim 2, characterized in that, When the distance between the first buffer plate (51) and the second buffer plate (52) is equal to or greater than a preset distance, the drive unit (31) stops working.

4. The material suction device (100) as described in claim 1, characterized in that, The buffer structure (50) further includes a guide rod (54), which is fixedly connected to one of the first buffer plate (51) and the second buffer plate (52) and movably connected to the other of the first buffer plate (51) and the second buffer plate (52). The elastic element (53) is sleeved on the outside of the guide rod (54).

5. The material suction device (100) as described in claim 4, characterized in that, The central axis of the guide rod (54) is parallel to the lifting direction of the suction gun (20).

6. The suction device (100) as described in claim 1, characterized in that, The elastic element (53) is provided in multiple ways, and the multiple elastic elements (53) are spaced apart around the central axis of the suction gun (20).

7. The suction device (100) as described in claim 1, characterized in that, The driving component (31) includes a lifting frame (311), a driving part (312), and a lifting part (313). The lifting frame (311) is fixed on the frame (10) and is provided with a slide rail (3111). The transmission component (32) includes a transmission frame (321) and a slider (322). The transmission frame (321) is fixedly connected to the second buffer plate (52) and the slider (322). The slider (322) slides with the slide rail (3111) and is connected to the lifting part (313). The driving part (312) is installed on the lifting frame (311) and / or the frame (10) and is used to drive the lifting part (313) to drive the slider (322) and the suction gun (20) to slide on the slide rail (3111).

8. The suction device (100) as described in claim 7, characterized in that, At least one end of the slide rail (3111) is provided with a limiting structure (3112), which is used to limit the travel of the suction gun (20) relative to the frame (10).

9. The suction device (100) as described in claim 7, characterized in that, Two lifting frames (311) are provided, and the suction gun (20) is located between the two lifting frames (311). Two sliders (322) are provided, and the two sliders (322) are respectively connected to the two ends of the transmission frame (321) and respectively slidingly engaged with the two slide rails (3111) corresponding to the two lifting frames (311).

10. The suction device (100) as described in claim 9, characterized in that, The suction device (100) further includes a detector (60), and the transmission frame (321) is connected to the second buffer plate (52) to form a receiving groove (3201); or, the transmission frame (321) is provided with a receiving groove (3201), the suction gun (20) passes through the receiving groove (3201), at least part of the structure of the elastic member (53) and the detector (60) are housed in the receiving groove (3201), and the detector (60) is used to detect whether the distance between the first buffer plate (51) and the second buffer plate (52) is less than or equal to a preset distance.

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