Metal powder online conveying and sampling device

Abstract

The invention discloses a metal powder online conveying and sampling device, and belongs to the field of metallurgical equipment.The metal powder online conveying and sampling device comprises two sets of supporting frames installed on the two sides of a metal powder conveying belt, the two sets of supporting frames are connected through a connecting frame, and sampling barrels are hinged to one side of the connecting frame at equal intervals in the length direction of the connecting frame; material guide ports are formed in one side of the upper half part of the sampling barrel at equal intervals in the length direction of the sampling barrel, a splayed feeding port is formed in the bottom of the other side of the sampling barrel, material guide pipes are connected to the material guide ports through flanges, and the other ends of the material guide pipes are connected with discharging pipes; a fixing frame is fixedly connected to one end of the top of the supporting frame, and electric push rods are hinged to the bottom of the fixing frame at equal intervals in the length direction of the fixing frame. According to the metal powder sampling device, sampling is conducted in the width interval, the length interval and the metal powder size interval in the metal powder conveying process, so that sampling diversification is improved, and detection is facilitated.

Description

Technical Field

[0001] The present application relates to the field of metallurgical equipment, and in particular to an online transmission and sampling device for metal powder. Background Art

[0002] At present, when powder is transported, a conveyor belt is used for transmission, and the powder is transported and moved by the rotation of the belt. For example, coal powder and metal powder are used for molding and preparation during the metallurgical process. Due to the different compositions of different metals, trace metal elements need to be mixed inside, and multi-element metallographic phases are produced by heating and melting to enhance the material properties. Therefore, it is necessary to detect the content of different components in the powder.

[0003] As shown in the existing authorization announcement number CN111964977B, a metal powder online transmission sampling device is provided, in which the metal powder to be sampled is placed in a sampling trough, and the metal powder in the placement trough is poured into a collection box by using a transmission mechanism, and the powder pouring positions in the placement troughs at different positions are different, so that zones can be separated in the collection box. However, in this process, it is impossible to sample the width interval and the length interval at the same time during the metal powder transportation process, which reduces the diversification of metal powder sampling. Therefore, the present application provides a metal powder online transmission sampling device. Summary of the Invention

[0004] The main purpose of this application is to provide a metal powder online transmission sampling device, which improves the diversity of sampling and facilitates detection by sampling within the width range, length range and metal powder size range during the metal powder transportation process.

[0005] To achieve the above-mentioned purpose, the present application provides a metal powder online transmission sampling device, comprising two groups of support frames installed on both sides of a metal powder conveyor belt, wherein the two groups of support frames are connected by a connecting frame, one side of the connecting frame is hinged with sampling cylinders at equal intervals along its length direction, and one side of the upper half of the sampling cylinder is provided with material guide ports at equal intervals along its length direction, and an eight-shaped material feed port is provided at the bottom of the other side of the sampling cylinder, the material guide ports are connected to material guide pipes through flanges, and the other ends of the material guide pipes are connected to discharge pipes; One end of the top of the support frame is fixedly connected to a fixing frame, and the bottom of the fixing frame is hinged with electric push rods at equal intervals along its length, and the output end of the electric push rod is hinged to one side of the sampling tube; On the other side of the connecting frame, fixed seats corresponding to the sampling cylinders are fixed at equal intervals along its length direction. The outer sides of the discharge pipes are each sleeved with a limit seat, and the limit seats corresponding to the same sampling cylinder are connected by connecting rods and fixed to the fixed seat.

[0006] Preferably, a screw rod and a slide rod are respectively installed on the top of the inner side of the two groups of support frames, and a driving motor 1 for driving the screw rod to rotate is installed at one end of the screw rod.

[0007] Preferably, a placement rack is slidably connected between the two groups of support racks, and both ends of the placement rack are fixedly connected with a threaded sleeve and a sliding sleeve that cooperate with the screw rod and the sliding rod.

[0008] Preferably, a sampling box is placed on the placement rack, and sampling slots corresponding to the discharge pipe are opened on the top of the sampling box at equal intervals along its length and width directions.

[0009] Preferably, a partition is fixed at the middle position of the lower half of the sampling cylinder, and a rotating cylinder is rotatably connected to the middle position of the partition through a bearing, and a conveying auger is fixed on the outside of the rotating cylinder, and a feed port is opened in the gap of the conveying auger in the middle section of the rotating cylinder, and an inclined plate is fixed on the inner side of the rotating cylinder below the feed port, and a discharge port is opened on the side wall of the sampling cylinder below the partition.

[0010] Preferably, a driving motor 2 is installed on the top of the sampling cylinder, and the output end of the driving motor 2 is connected to a hollow rotating rod, and the other end of the hollow rotating rod is fixed to the inner bottom end of the rotating cylinder, and an air outlet is opened at equal intervals along its circumferential direction at the bottom of the side surface of the hollow rotating rod, and an air inlet is opened at equal intervals along its circumferential direction at the top of the side surface of the hollow rotating rod, and an air guide cover is provided on the outside of the hollow rotating rod at the air inlet position through two sets of upper and lower bearing sleeves, and an air jet is opened on the side of the air guide cover, and an air guide channel is connected to the outside of the air jet, and an air inlet connected to the other end of the air guide channel is opened on the outside of the sampling cylinder, and an exhaust port is opened at equal intervals along its circumferential direction at the top of the sampling cylinder outside the driving motor 2, and a filter is installed at the exhaust port position.

[0011] Preferably, a fixed cylinder is installed between the hollow rotating rod and the rotating cylinder through a bearing, and the top of the outer side of the fixed cylinder is fixed to the inner side of the sampling cylinder through the fixed rod, and protective grilles are arranged at equal intervals along the circumferential direction at the bottom of the side of the fixed cylinder, and a magnet block is fixed on the outer side of the hollow rotating rod inside the fixed cylinder.

[0012] Preferably, a material guide assembly is fixed inside the sampling cylinder at the material guide port, and the material guide assembly is formed by a combination of a tapered portion at the top, a straight cylindrical portion at the middle position, and an inclined portion at the bottom.

[0013] Preferably, vertical rods are fixed at equal intervals along the circumferential direction of the outer side of the hollow rotating rod between the material guide assembly and the rotating cylinder, and fixing rings are fixed at equal intervals along the axial direction of the vertical rods, and hinged blades are hinged on the outer side of the fixing rings.

[0014] The advantages of the present application are as follows: first, by controlling the number of sampling tubes in a vertical state and adjusting the spacing between the two sampling tubes, multiple samples can be collected within a same width interval, thereby improving the diversity of sampling; at the same time, during the metal powder conveying process, when the powder enters the interior of the sampling tube, since the metal powder is always in a conveying state, multiple samples can be collected in the length direction when sampling the metal powder, and since the conveying auger synchronously adopts the same collection method as in the length direction during conveying, the metal powder entering the interior of the sampling tube within a certain interval will not be mixed with the metal powder in another interval, thereby further improving the diversity of sampling; Secondly, due to the different sizes of metal powder particles, air separation is used to sample according to the size of the metal powder particles, thereby further improving the diversity of sampling. At the same time, when the hollow rotating rod drives the rotating cylinder to rotate, since an arc-shaped magnet block is fixed to the outside of the hollow rotating rod, during the rotation of the hollow rotating rod, the magnet block is used to generate magnetic attraction for the metal powder at the feed inlet position, and the metal powder is attracted into the space between the rotating cylinder and the fixed cylinder. At the same time, since the magnet block does not completely wrap the outside of the hollow rotating rod, the position corresponding to the front of the magnet block also changes circumferentially during the rotation of the hollow rotating rod. Therefore, in conjunction with the wind force from bottom to top, the metal powder demagnetized at the previous position is transported upward by wind during the rotation of the magnet block. Finally, during the rotation of the hollow rotating rod, the vertical rod is driven to rotate synchronously, so that the hinged blades are changed from vertical to parallel under the action of centrifugal force. At the same time, a fan is formed between the fixed ring and the vertical rod at the same height in the circumferential direction of the hollow rotating rod. The fans distributed at equal intervals in the axial direction of the hollow rotating rod produce an air suction effect on the lower part of the sampling tube, thereby increasing the air delivery effect on the metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings: Figure 1 It is a schematic diagram of the overall first-perspective structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall second viewing angle structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the overall top structure of the present invention.

[0018] Figure 4It is a schematic diagram of the internal planar structure of the sampling tube of the present invention.

[0019] Figure 5 It is a schematic diagram of the internal bottom structure of the sampling tube.

[0020] Figure 6 It is a schematic diagram of the internal top structure of the sampling tube.

[0021] Figure 7 yes Figure 6 Enlarged structural diagram at point A in the middle.

[0022] Figure 8 It is a schematic diagram of the internal structure of the sampling tube.

[0023] Figure 9 This is a schematic diagram of the coordinated structure of the support frame, sampling tube and metal powder conveyor belt.

[0024] In the figure above, 100, support frame; 101, screw rod; 102, driving motor 1; 103, sliding rod; 200, fixing frame; 201, electric push rod; 300, connecting frame; 301, limit card seat; 302, fixing seat; 303, connecting rod; 400, sampling tube; 401, driving motor 2; 402, guide pipe; 403, discharge pipe; 404, eight-shaped feed port; 405, conveying auger; 406, exhaust port; 407, hollow rotating rod; 408, guide port; 409, tapered portion; 410, straight portion; 411, inclined portion; 412, air inlet ; 413, feed port; 414, rotating cylinder; 415, air inlet; 416, air guide channel; 417, air guide hood; 418, jet nozzle; 419, partition; 420, discharge port; 421, fixed rod; 422, air outlet; 423, protective grille; 424, fixed ring; 425, vertical rod; 426, hinged blade; 427, filter screen; 428, magnet block; 429, inclined plate; 430, fixed cylinder; 500, sampling box; 501, sampling trough; 600, placement rack; 601, threaded sleeve; 602, sliding sleeve; 700, metal powder conveyor belt. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate to describe the embodiments of the present application here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0028] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to express a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0029] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] See also Figures 1-9As shown, this embodiment provides a metal powder online transmission sampling device, comprising two groups of support frames 100 installed on both sides of a metal powder conveyor belt 700, wherein the two groups of support frames 100 are connected by a connecting frame 300, and sampling cylinders 400 are hingedly connected to one side of the connecting frame 300 at equal intervals along its length direction, and one side of the upper half of the sampling cylinder 400 is provided with material guide ports 408 at equal intervals along its length direction, and an eight-shaped material feed port 404 is provided at the bottom of the other side of the sampling cylinder 400, and the material guide ports 408 are connected to the material guide pipe 402 through a flange, and the other end of the material guide pipe 402 is connected to the discharge pipe 403; One end of the top of the support frame 100 is fixedly connected to the fixing frame 200, and the bottom of the fixing frame 200 is hinged with electric push rods 201 at equal intervals along its length, and the output end of the electric push rod 201 is hinged to one side of the sampling cylinder 400; The other side of the connecting frame 300 is fixed with fixed seats 302 corresponding to the sampling cylinder 400 at equal intervals along its length direction, and the outer side of the discharge tube 403 is sleeved with a limit seat 301, and the limit seats 301 corresponding to the same sampling cylinder 400 are connected and fixed on the fixed seat 302 through a connecting rod 303. When in use, it is first fixed to both sides of the metal powder conveyor belt 700 through the support frame 100, and then the sampling cylinder 400 is pushed by the electric push rod 201 to rotate along the hinge axis between 300 and the sampling cylinder 400, so that the sampling cylinder 400 can be in a vertical state. Then, during the metal powder conveying process, it enters the interior of the sampling cylinder 400 through the figure eight feed port 404, and provides power support for the drive motor 2 401 through an external power supply, so that the drive motor 2 401 drives the hollow The rotating rod 407, the rotating cylinder 414 and the conveying auger 405 rotate to convey the metal powder entering the bottom end of the sampling cylinder 400 upward. During this process, the number of sampling cylinders 400 in a vertical state can be controlled to adjust the distance between the two sampling cylinders 400, so that multiple samples in the same width interval can be collected, thereby improving the diversity of sampling. At the same time, during the metal powder conveying process, when the powder enters the sampling cylinder 400, since the metal powder is always in a conveying state, multiple samples can be collected in the length direction when sampling the metal powder. Moreover, since the conveying auger 405 synchronously presents the same collection method as in the length direction during conveying, the metal powder entering the sampling cylinder 400 in a certain interval will not be mixed with the metal powder in another interval, thereby further improving the diversity of sampling.

[0032] In this embodiment, a screw rod 101 and a sliding rod 103 are respectively installed on the top of the inner side of the two groups of support frames 100, and a driving motor 102 for driving the screw rod 101 to rotate is installed at one end of the screw rod 101. When in use, the screw rod 101 is driven to rotate by the driving motor 102, thereby driving the placement frame 600 to move.

[0033] In this embodiment, a placement rack 600 is slidably connected between the two groups of support racks 100, and the two ends of the placement rack 600 are respectively fixedly connected with a threaded sleeve 601 and a sliding sleeve 602 that cooperate with the screw rod 101 and the sliding rod 103. When in use, the threaded sleeve 601 and the sliding sleeve 602 at both ends of the placement rack 600 slide along the screw rod 101 and the sliding rod 103 respectively.

[0034] In this embodiment, a sampling box 500 is placed on the placement rack 600, and sampling grooves 501 corresponding to the discharge pipe 403 are opened at even intervals on the top of the sampling box 500 along its length and width directions. When in use, the metal powder is discharged into the sampling groove 501 inside the sampling box 500 through the discharge pipe 403, thereby sampling the metal powder.

[0035] In this embodiment, a partition 419 is fixed at the middle position of the lower half of the sampling cylinder 400, and the middle position of the partition 419 is rotatably connected to the rotating cylinder 414 through a bearing, and a conveying auger 405 is fixed on the outside of the rotating cylinder 414, and a feed port 413 is provided in the gap of the conveying auger 405 in the middle section of the rotating cylinder 414, and an inclined plate 429 is fixed on the inner side of the rotating cylinder 414 below the feed port 413, and a discharge port 420 is provided on the side wall of the sampling cylinder 400 below the partition 419. When in use,.

[0036] like Figure 6 and Figure 7As shown, in this embodiment, a driving motor 2 401 is installed on the top of the sampling cylinder 400, and the output end of the driving motor 2 401 is connected to a hollow rotating rod 407, and the other end of the hollow rotating rod 407 is fixed to the inner bottom end of the rotating cylinder 414, and the bottom of the side of the hollow rotating rod 407 is provided with air outlets 422 at equal intervals along its circumferential direction, and the top of the side of the hollow rotating rod 407 is provided with air inlet holes 412 at equal intervals along its circumferential direction, and the outer side of the hollow rotating rod 407 at the position of the air inlet hole 412 is provided with an air guide cover 417 through two sets of upper and lower bearing sleeves, and an air jet 418 is provided on the side of the air guide cover 417, and the outer side of the air jet 418 is connected to the air guide channel 416, and a guide hole 422 is provided on the outer side of the sampling cylinder 400. The other end of the air channel 416 is connected to the air inlet 415, and exhaust ports 406 are provided at equal intervals along the circumferential direction of the top of the sampling cylinder 400 outside the second driving motor 401, and a filter screen 427 is installed at the position of the exhaust port 406. When in use, the air is connected to the air inlet 415 through an external air source, so that the gas is introduced into the interior of the air guide cover 417 through the air guide channel 416 and enters the interior of the hollow rotating rod 407 through the air inlet hole 412, and then enters the interior of the fixed cylinder 430 from the air outlet 422 at the bottom of the hollow rotating rod 407, and enters the interior of the rotating cylinder 414 through the protective grille 423, thereby blowing the metal powder entering between the rotating cylinder 414 and the fixed cylinder 430, so that the metal powder moves upward along the interior of the sampling cylinder 400.

[0037] like Figure 5 As shown, in this embodiment, a fixed cylinder 430 is installed between the hollow rotating rod 407 and the rotating cylinder 414 through a bearing, and the top of the outer side of the fixed cylinder 430 is fixed to the inner side of the sampling cylinder 400 through a fixed rod 421, and a protective grille 423 is provided at equal intervals along the circumferential direction of the bottom of the side of the fixed cylinder 430, and a magnet block 428 is fixed to the outer side of the hollow rotating rod 407 inside the fixed cylinder 430. When in use, during the rotation of the hollow rotating rod 407, the magnet block 428 is used to 8 generates magnetic attraction to the metal powder at the position of the feed port 413, and draws the metal powder into the space between the rotating cylinder 414 and the fixed cylinder 430. At the same time, since the magnet block 428 does not completely wrap the outside of the hollow rotating rod 407, the position corresponding to the front of the magnet block 428 also changes in the circle during the rotation of the hollow rotating rod 407. Therefore, in conjunction with the wind force from bottom to top, the magnet block 428 transports the demagnetized metal powder at the previous position upward by wind during its rotation.

[0038] like Figure 4As shown, in this embodiment, a material guide assembly is fixed inside the sampling tube 400 at the position of the material guide port 408. The material guide assembly is composed of a conical portion 409 at the top, a straight cylindrical portion 410 at the middle position, and an inclined portion 411 at the bottom. When in use, the conical portion 409 is used to guide the wind, so that larger metal powder can fall into the interior of the material guide assembly when passing through 409 due to the smaller blowing area of the wind. At the same time, the inclined surface of the inclined portion 411 is used to make the metal powder falling into the interior of the material guide assembly gather at the position of the material guide port 408.

[0039] like Figure 4 and Figure 8 As shown, in this embodiment, vertical rods 425 are fixed at equal intervals along the circumferential direction of the outer side of the hollow rotating rod 407 between the material guide assembly and the rotating cylinder 414, and fixing rings 424 are fixed at equal intervals along the axial direction of the vertical rod 425, and hinged blades 426 are hinged on the outer side of the fixing ring 424. When in use, the vertical rod 425 is driven to rotate synchronously during the rotation of the hollow rotating rod 407, so that the hinged blades 426 are changed from vertical to parallel under the action of centrifugal force. At the same time, a fan is formed between the fixing ring 424 and the vertical rod 425, which are at the same height in the circumferential direction of the hollow rotating rod 407. The fan distributed at equal intervals in the axial direction of the hollow rotating rod 407 produces an air suction effect on the lower part of the sampling cylinder 400, thereby increasing the air delivery effect on the metal powder.

[0040] In summary: Before sampling the metal powder, it is first fixed to both sides of the metal powder conveyor belt 700 through the support frame 100, and then the sampling cylinder 400 is pushed by the electric push rod 201 to rotate along the hinge axis between 300 and the sampling cylinder 400, so that the sampling cylinder 400 can be in a vertical state. Then, during the metal powder conveying process, it enters the interior of the sampling cylinder 400 through the eight-shaped feed port 404, and the external power supply is used to provide power support for the driving motor 2 401, so that the driving motor 2 401 is used to drive the hollow rotating rod 407, the rotating cylinder 414 and the conveying auger 405 to rotate, and the metal powder entering the bottom end of the sampling cylinder 400 is conveyed upward. During this process, the number of sampling cylinders 400 in a vertical state can be controlled and the spacing between the two sampling cylinders 400 can be adjusted to enable the collection of multiple samples within the same width interval, thereby improving the diversity of sampling. At the same time, during the metal powder conveying process, when the powder enters the sampling cylinder 400, since the metal powder is always in a conveying state, the collection of multiple samples in the length direction can be achieved when sampling the metal powder. Moreover, since the conveying auger 405 synchronously presents the same collection method as in the length direction during conveying, the metal powder entering the sampling cylinder 400 within a certain interval will not be mixed with the metal powder in another interval, thereby further improving the diversity of sampling. Then the metal powder enters the interior of the rotating cylinder 414 from the feed port 413. It is explained here that as the metal powder continuously enters the interior of the sampling cylinder 400, the space between the rotating cylinder 414 and the inner side of the sampling cylinder 400 is filled with metal powder. As a result, the metal powder enters the interior of the rotating cylinder 414 along the feed port 413 during the mutual squeezing of the metal powder, and moves upward under the action of the wind from bottom to top. At the same time, as the hollow rotating rod 407 drives the rotating cylinder 414 to rotate, since an arc-shaped magnet block 428 is fixed to the outer side of the hollow rotating rod 407, during the rotation of the hollow rotating rod 407, the magnet block 428 is used to generate magnetic attraction to the metal powder at the feed port 413, and the metal powder is attracted into the rotating cylinder 414. In the space between the hollow rotating rod 407 and the fixed cylinder 430, since the magnet block 428 does not completely wrap the outside of the hollow rotating rod 407, the position corresponding to the front of the magnet block 428 also changes in the circumference during the rotation of the hollow rotating rod 407. Therefore, in conjunction with the wind force from bottom to top, the magnet block 428 transports the demagnetized metal powder at the previous position upward by wind during the rotation. At the same time, the setting of the inclined plate 429 prevents the wind force from blowing directly towards the feed port 413, preventing the metal powder from being blown out from the 413 position under the action of the wind. At the same time, the external air source is connected to the air inlet 415, so that the gas is introduced into the interior of the air guide cover 417 through the air guide channel 416. The metal powder is blown into the space between the rotating cylinder 414 and the fixed cylinder 430 through the air inlet 412, and then blown into the space between the rotating cylinder 414 and the fixed cylinder 430 through the air outlet 422 at the bottom of the hollow rotating cylinder 407, so that the metal powder moves upward along the interior of the sampling cylinder 400. In this process, since the metal powder fills the gap position of the conveying auger 405, the wind force will be upward, and the excess metal powder conveyed by the conveying auger 405 will be discharged from the discharge port 420 and fall back onto the metal powder conveyor belt 700. Under the action of the wind, the metal powder moves upward, and at the same time, during the rotation of the hollow rotating rod 407, it drives the vertical rod 4 25 rotates synchronously, so that under the action of centrifugal force, the hinged blades 426 are changed from vertical to parallel, and at the same time, a fan is formed between the fixed ring 424 and the vertical rod 425 with equal height in the circumferential direction of the hollow rotating rod 407. The fans distributed at equal intervals in the axial direction of the hollow rotating rod 407 produce an air extraction effect on the lower part of the sampling cylinder 400, thereby increasing the air delivery effect on the metal powder. At the same time, it is explained that the space inside the rotating cylinder 414 is smaller than the space inside the sampling cylinder 400 above the rotating cylinder 414. Therefore, when the metal powder enters the internal space of the sampling cylinder 400 above the rotating cylinder 414, it is easy to cause the metal powder to fall on the partition 419 due to insufficient wind force, resulting in metal powder residue. Then, after the metal powder passes through the fan,Thus, the metal powder passes through the equally spaced guide components. It is also explained that, due to the different sizes of the metal powder, under the same wind force, the metal powder falls into the guide components at different heights according to their size, and is then discharged from the guide port 408. During this process, the conical portion 409 is used to guide the wind, so that larger metal powder can fall into the guide components due to the smaller blowing area when passing through 409. At the same time, the inclined surface of the inclined portion 411 is used to collect the metal powder that has fallen into the guide components at the position of the guide port 408, thereby achieving sampling of metal powders of different sizes and further improving the diversity of sampling.

[0041] Then it enters the guide tube 402 from the guide port 408, and is discharged into the sampling slot 501 inside the sampling box 500 through the discharge tube 403, thereby sampling the metal powder. In the process of discharging the metal powder from the discharge tube 403, the lead screw 101 is driven by the driving motor 102 to rotate, so that the threaded sleeve 601 and the sliding sleeve 602 at both ends of the placement rack 600 slide along the lead screw 101 and the sliding rod 103 respectively, thereby ensuring that in the process of sampling the metal powder, the powder entering the sampling slot 501 is in a linear sampling process corresponding to the powder entering the sampling tube 400, forming a linear distribution, which is convenient for detection.

Claims

1. A metal powder online transmission sampling device, comprising two sets of support frames (100) installed on both sides of a metal powder conveyor belt (700), wherein: The two groups of support frames (100) are connected via a connecting frame (300), characterized in that a sampling cylinder (400) is hingedly connected to one side of the connecting frame (300) at equal intervals along its length direction, and a material guide port (408) is opened at equal intervals along its length direction on one side of the upper half of the sampling cylinder (400), and an eight-shaped material feed port (404) is opened at the bottom of the other side of the sampling cylinder (400), and a material guide pipe (402) is connected to the material guide port (408) via a flange, and a discharge pipe (403) is connected to the other end of the material guide pipe (402); One end of the top of the support frame (100) is fixedly connected to a fixing frame (200), and the bottom of the fixing frame (200) is hinged with electric push rods (201) at equal intervals along its length, and the output end of the electric push rod (201) is hinged to one side of the sampling cylinder (400); On the other side of the connecting frame (300), fixed seats (302) corresponding to the sampling cylinders (400) are fixed at equal intervals along its length direction. The outer sides of the discharge tubes (403) are all sleeved with limit clamps (301), and the limit clamps (301) corresponding to the same sampling cylinder (400) are connected by connecting rods (303) and fixed to the fixed seats (302).

2. The metal powder online transmission sampling device according to claim 1, characterized in that: A screw rod (101) and a slide rod (103) are respectively installed on the top of the inner side of the two groups of support frames (100), and a driving motor (102) for driving the screw rod (101) to rotate is installed at one end of the screw rod (101).

3. The metal powder online transmission sampling device according to claim 2, characterized in that: A placement rack (600) is slidably connected between the two groups of support racks (100), and both ends of the placement rack (600) are fixedly connected with a threaded sleeve (601) and a sliding sleeve (602) that cooperate with the screw rod (101) and the sliding rod (103).

4. The metal powder online transmission sampling device according to claim 3, characterized in that: A sampling box (500) is placed on the placement rack (600), and sampling slots (501) corresponding to the discharge pipe (403) are provided at equal intervals on the top of the sampling box (500) along its length and width directions.

5. The metal powder online transmission sampling device according to claim 1, characterized in that: A partition (419) is fixed at the middle position of the lower half of the sampling cylinder (400), and a rotating cylinder (414) is rotatably connected to the middle position of the partition (419) through a bearing, and a conveying auger (405) is fixed on the outside of the rotating cylinder (414), and a feed port (413) is opened at the gap of the conveying auger (405) in the middle section of the rotating cylinder (414), and an inclined plate (429) is fixed on the inner side of the rotating cylinder (414) below the feed port (413), and a discharge port (420) is opened on the side wall of the sampling cylinder (400) below the partition (419).

6. The metal powder online transmission sampling device according to claim 5, characterized in that: A second driving motor (401) is installed on the top of the sampling cylinder (400), and the output end of the second driving motor (401) is connected to a hollow rotating rod (407), and the other end of the hollow rotating rod (407) is fixed to the inner bottom end of the rotating cylinder (414), and the bottom of the side of the hollow rotating rod (407) is provided with air outlets (422) at equal intervals along its circumferential direction, and the top of the side of the hollow rotating rod (407) is provided with air inlet holes (412) at equal intervals along its circumferential direction, and the hollow rotating rod (407) at the position of the air inlet hole (412) is provided. ) is provided with an air guide cover (417) on the outside through the upper and lower sets of bearing sleeves, and an air jet (418) is provided on the side of the air guide cover (417), and the outside of the air jet (418) is connected to an air guide channel (416), and an air inlet (415) connected to the other end of the air guide channel (416) is provided on the outside of the sampling tube (400), and exhaust ports (406) are provided at equal intervals along the circumferential direction of the top of the sampling tube (400) outside the driving motor 2 (401), and a filter (427) is installed at the position of the exhaust port (406).

7. The metal powder online transmission sampling device according to claim 6, characterized in that: A fixed cylinder (430) is installed between the hollow rotating rod (407) and the rotating cylinder (414) via a bearing, and the top of the outer side of the fixed cylinder (430) is fixed to the inner side of the sampling cylinder (400) via a fixed rod (421), and protective grilles (423) are arranged at equal intervals along the circumferential direction at the bottom of the side of the fixed cylinder (430), and a magnet block (428) is fixed to the outer side of the hollow rotating rod (407) inside the fixed cylinder (430).

8. The metal powder online transmission sampling device according to claim 5, characterized in that: A material guide assembly is fixed inside the sampling tube (400) at the material guide port (408), and the material guide assembly is formed by a tapered portion (409) at the top, a straight cylindrical portion (410) at the middle position, and an inclined portion (411) at the bottom.

9. The metal powder online transmission sampling device according to claim 8, characterized in that: Vertical rods (425) are fixed at equal intervals along the circumferential direction of the outer side of the hollow rotating rod (407) between the material guide assembly and the rotating cylinder (414), and fixing rings (424) are fixed at equal intervals along the axial direction of the vertical rod (425), and hinged blades (426) are hingedly connected to the outer side of the fixing ring (424).

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