Ton barrel connection table and method

Abstract

The invention relates to the technical field of tungsten carbide powder production, in particular to a ton barrel connection table and method, the ton barrel connection table comprises a base, a bearing frame, a material receiving pipe and a control system, the base is provided with a weighing mechanism, and the bearing frame is installed on the base and provided with a vibration mechanism; the material receiving pipe is elastically installed on the bearing frame and connected with a discharging opening of the ton barrel and the feeding pipe. A gas explosion device, a cover replacing device and a ton barrel locking mechanism can be additionally arranged, and all the components are electrically connected with the control system. The ton barrel connection method comprises the steps of parameter setting, ton barrel butt joint valve opening, weighing vibration triggering and empty weighing valve closing barrel changing, and full-process automation of ton barrel fixing, discharging, residue cleaning and cover changing is achieved. Intelligent linkage of weighing and discharging is achieved, material loss is reduced, the residue cleaning efficiency and the equipment universality are improved, the device is matched with an AGV and an upper-layer production system, and the continuous operation requirement of an intelligent tungsten carbide powder production line is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tungsten carbide powder production, in particular to a ton barrel docking platform and method. BACKGROUND

[0002] At present, in the field of tungsten carbide powder production, the ton barrel as the core transfer container between material storage and production line, the efficiency, automation degree and adaptability of its docking link directly determine the continuity of material circulation and product quality stability.

[0003] However, the current traditional ton barrel docking equipment and process have many targeted technical bottlenecks: first, the weighing mechanism is disconnected with the unloading control, which needs manual intervention to start and stop unloading, which easily leads to material waste or excessive residue, and the data cannot be synchronized to the upper system, making it difficult to realize precise tracing; second, relying on gravity unloading, material is easy to agglomerate and bridge, the residue problem is prominent, and the effect of part of the vibration mechanism is limited, which needs manual cleaning, increasing the loss and labor intensity; third, the connection mode of the receiving pipe is rigidly fixed, which cannot adapt to different specifications of ton barrels, and the insufficient sealing easily leads to dust overflow; finally, the ton barrel fixing needs manual operation, which is easy to shift when vibrating, the cover changing device is separated from the docking platform, the process is broken, leading to transfer delay, and poor adaptability. These problems together lead to low efficiency, high loss, weak automation and poor adaptability of the ton barrel docking link, which cannot meet the collaborative and unmanned needs of the intelligent production line of tungsten carbide powder. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a ton barrel docking platform and method, which realizes the linkage of weighing and unloading to reduce material loss.

[0005] Therefore, on the one hand, the present application provides a ton barrel docking platform, which comprises:

[0006] a base provided with a weighing mechanism for weighing the weight of the ton barrel;

[0007] a receiving frame installed on the upper end face of the base, provided with a vibration mechanism for carrying and vibrating the ton barrel;

[0008] a receiving pipe elastically installed on the receiving frame, one end of the receiving pipe being connected with the ton barrel through a discharging valve, and the other end being inserted into a feeding pipe and moving axially along the feeding pipe;

[0009] a control system electrically connected with the weighing mechanism, the vibration mechanism and the discharging valve respectively.

[0010] According to some embodiments of the present application, the ton drum connection platform further comprises a valve opening mechanism, including a valve opening claw, a motor and a valve opening cylinder, the motor drives the valve opening claw to rotate, and the valve opening cylinder pushes the valve opening claw to move; the motor and the valve opening cylinder are respectively electrically connected with the control system.

[0011] According to some embodiments of the present application, the material receiving pipe is elastically mounted on the receiving frame through elastic devices; the elastic devices include an elastic air bag, one end of the elastic air bag is fixed to the material receiving pipe, and the other end abuts against the receiving frame; a limiting rod for limiting the axial direction of the material receiving pipe is arranged between the material receiving pipe and the receiving frame.

[0012] According to some embodiments of the present application, supports are welded around the ton drum, the supports are mounted on the receiving frame, the base is provided with a locking mechanism for fixing the supports, and the locking mechanism is electrically connected with the control system.

[0013] According to some embodiments of the present application, the ton drum connection platform further comprises a gas explosion device, the gas explosion device includes a gas explosion steel pipe, a gas storage tank in communication with one end of the gas explosion steel pipe and used for providing compressed air, and a lifting mechanism used for lifting the gas explosion steel pipe, the lifting mechanism is fixed on the base, and the other end of the gas explosion steel pipe is arranged in the ton drum.

[0014] According to some embodiments of the present application, an electromagnetic pulse valve is arranged at the connection position between the gas explosion steel pipe and the gas storage tank, and the electromagnetic pulse valve is electrically connected with the control system.

[0015] According to some embodiments of the present application, the lifting mechanism includes a fixed platform, a lifting platform, a lifting cylinder and a lifting pipe, the lifting cylinder is arranged between the lifting platform and the fixed platform and used for controlling the lifting of the lifting platform, the lifting pipe is fixedly connected with the lifting platform and is driven to ascend or descend by the lifting platform, and the gas explosion steel pipe penetrates through and is fixed on the side wall of the lifting pipe and is driven to ascend or descend by the lifting pipe.

[0016] In another aspect, a ton drum connection method is provided, which uses the ton drum connection platform, and includes the following steps:

[0017] S100, setting the vibration duration threshold of the vibration mechanism through the parameter setting interface of the control system, and setting the calibration empty weighing value and the calibration weight value through the setting interface of the weighing mechanism;

[0018] S200, placing the ton drum on the receiving frame, and abutting the discharge port of the ton drum with the material receiving pipe;

[0019] S300, starting the valve opening program of the control system to open the discharge valve, and stopping the valve opening program when the discharge valve is opened to the position, and ton drum discharging;

[0020] S400, start the vibration program, control the system to open the vibration mechanism to make the ton barrel vibrate; after reaching the vibration duration threshold, close the vibration program and stop the vibration; the start valve closing program signal is fed back to the control system, and the control system closes the discharge valve;

[0021] S500, start the weighing program, and lift the weighing mechanism to detect the weight in the ton barrel; if it is detected that the weight of the ton barrel reaches the sum of the calibrated empty scale value and the calibrated weight value, then lower the weighing mechanism, initialize the control system, and wait for the ton barrel to be taken away; if it is detected that the weight in the ton barrel is greater than the sum of the calibrated empty scale value and the calibrated weight value, then repeat S300 to S400;

[0022] S600, take away the ton barrel.

[0023] According to some embodiments of the present application, in the S100, the parameter setting of the control system further includes setting the opening time, closing time and frequency threshold of the electromagnetic pulse valve; in the S300, after stopping the valve opening program, the lifting mechanism is controlled by the control system to lift the gas explosion steel pipe into the ton barrel; in the S400, after starting the vibration program, the gas explosion program is started synchronously, the electromagnetic pulse valve enters compressed air into the ton barrel in the form of pulses through the gas explosion steel pipe according to the set opening time, closing time and frequency threshold; at the same time of stopping the vibration, the gas explosion program is closed, and the lifting mechanism lowers the gas explosion steel pipe to the initial position.

[0024] According to some embodiments of the present application, in the S200, after the ton barrel is placed on the receiving frame, the control system controls the locking mechanism to automatically lock the support; in the S400, after the discharge valve is closed, the control system controls the locking mechanism to automatically unlock.

[0025] According to the ton barrel connection table and method of the present application, at least the following technical effects are achieved:

[0026] 1. The present application realizes the closed-loop linkage of ton barrel unloading through the PLC control system. After AGV sends the "bucket completion signal", the control system automatically starts the valve opening cylinder to push the valve opening claw and drive the motor to rotate the butterfly valve 311, without manual operation of the unloading valve. Further optimize the automatic logic, automatically close the unloading valve when the vibration time is reached, no manual supervision is required throughout the process, reducing manual operation links; compatible with AGV automatic transfer and forklift manual transfer scenarios, AGV transfer triggers the control system through wireless signals, forklift transfer can be manually assisted, and supports "automatic valve opening" and "manual handwheel valve opening" switching, adapts to different automation levels of different workshops, reduces the cost of scenario switching; after the unloading valve is closed, the remaining material is detected by the weighing mechanism to ensure that the remaining material falls into the feeding pipe completely, avoiding the material residue caused by manual early unlocking in traditional processes; at the same time, the "valve closing completion" signal is fed back to the AGV, realizing seamless connection from "unloading to transfer", improving the workshop turnover efficiency; intelligent and automatic cooperation greatly reduces the cost of manual intervention.

[0027] 2. The receiving pipe in the present application is elastically connected with the receiving frame through an elastic air bag, cooperates with an O-shaped rubber sealing ring and an air-tight sealing design, adapts to the height deviation of different ton barrels caused by manufacturing tolerance and loading capacity difference, ensures that the flange of the ton barrel discharge port and the flange of the receiving pipe are always closely matched, and avoids the overflow of tungsten carbide dust from the joint gap from the root; the receiving pipe and the feeding pipe are connected with a polyurethane organ cover or an extendable dustproof sleeve, which extends and retracts synchronously with the receiving pipe, and always isolates the dust from entering the joint gap; at the same time, the upper segment of the receiving pipe is designed as a conical funnel structure, which expands the joint area with the ton barrel discharge port and reduces the alignment accuracy requirement; the inner diameter of the funnel is mirror polished to reduce powder adhesion and residue, and reduce the loss of valuable tungsten carbide powder; the whole process is closed and protected to prevent dust overflow and material loss.

[0028] 3. The ton barrel connection table of the present application is designed to be compatible with conventional ton barrel specifications on the market, and the base is provided with anchor bolts at the bottom to ensure the levelness of the top bearing surface through leveling, avoiding the instability of ton barrel placement caused by the inclination of the base; for coarse and fine tungsten carbide powder, the vibration frequency is adjusted through the control system to ensure that powders of different particle sizes can be effectively loosened; further add a gas explosion device to scatter the agglomerated powder through pulse airflow, adapt to the characteristics of fine powder easy to agglomerate, and avoid blockage of the discharge port; support high and low switching installation, ton barrel is lifted and transferred by AGV or forklift, the lower end of ton barrel is connected with low-position process equipment, realizing the integration of "high-position storage and low-position conveying"; conventional low-position installation adapts to the traditional workshop layout without the need to modify the existing site height; strong adaptability in multiple scenes, compatible with different specifications of ton barrels and material characteristics.

[0029] 4. The present application synchronously works with the gas explosion device through the vibration mechanism, and the pulse airflow is sprayed out by the gas explosion nozzle while the vibration mechanism loosens the bulk material, so that the agglomerated powder in the ton barrel and the receiving pipe is scattered, the unloading efficiency is greatly improved, the discharge port is prevented from being blocked due to agglomeration, and the downtime cleaning time is reduced; the gas explosion steel pipe realizes lifting stroke through the lifting mechanism, so that the airflow accurately acts on the agglomeration area; the lifting guide rod cooperates with the linear bearing to reduce the radial deviation, and the collision between the gas explosion steel pipe and the inner wall of the ton barrel is avoided; the lifting pipe is sleeved outside the receiving pipe and inserted into the inside of the feeding pipe, which not only assists the lifting and positioning of the gas explosion steel pipe, but also provides axial guidance for the receiving pipe, so that the receiving pipe is not jammed during lifting, and the gap design of the feeding pipe and the receiving pipe further ensures the smoothness of the unloading channel.

[0030] 5. The present application adopts three groups of parallel weighing mechanisms which are liftable and installed at four corners of the base and are padded with silicone rubber damping pads to absorb the vibration energy transmitted by the vibration mechanism and avoid the influence of vibration on the weighing accuracy; by setting the "calibration empty weighing value" and the "calibration weight value", if the weight does not meet the standard, the unloading process is repeated to avoid insufficient material for subsequent processes due to incomplete unloading.

[0031] 6. The present application buffers the impact load when the ton barrel is docked through the elastic connection between the receiving pipe and the receiving frame, avoids the hard collision between the discharge port of the ton barrel and the flange of the receiving pipe; the limiting rod limits the axial movement distance of the receiving pipe to prevent the elastic air bag from being excessively compressed or stretched and broken, and improves the service life of the elastic air bag; in the automatic mode, the vibration mechanism and the gas explosion device are started only when needed to avoid the idling energy consumption of the ton barrel docking table; the elastic coefficient of the elastic air bag is adjusted by air pressure, which is more energy-saving than the traditional mechanical spring, and does not need to be replaced frequently, greatly reducing the replacement cost.

[0032] 7. In the present application, a dustproof sleeve is sleeved at the connection between the receiving pipe and the feeding pipe, due to the compressibility of the receiving pipe, the dustproof sleeve follows the contraction or expansion, always isolates the dust from the outside into the joint gap, at the same time, guarantees the axial movement of the receiving pipe is not hindered, perfectly cooperates with its elastic compression characteristics, adapts to the height deviation of different ton barrels. Similarly, a dustproof sleeve is sleeved between the upper part of the fixed plate on the outer wall of the receiving pipe and the outer wall of the lifting pipe, and a dustproof sleeve is sleeved between the lower part of the fixed plate on the outer wall of the lifting pipe and the outer wall of the feeding pipe, which are used to prevent dust from overflowing.

[0033] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a ton container docking platform according to Embodiment 1 of the present invention;

[0036] Figure 2 for Figure 1 Cross-sectional view;

[0037] Figure 3 for Figure 1 A schematic diagram of the base and valve opening mechanism in the diagram;

[0038] Figure 4 for Figure 1 A schematic diagram of the ton container structure;

[0039] Figure 5 for Figure 1 A schematic diagram of the valve opening mechanism in the diagram;

[0040] Figure 6 for Figure 1 A schematic diagram of the central feed tube and the elastic airbag;

[0041] Figure 7 for Figure 1 Schematic diagram of the intermediate material pipe and the supporting frame;

[0042] Figure 8 for Figure 7 Longitudinal cross-section;

[0043] Figure 9 This is a schematic diagram of a ton container docking platform structure according to Embodiment 2 of the present invention;

[0044] Figure 10 for Figure 9 Schematic diagram of the gas explosion device;

[0045] Figure 11 for Figure 9 Schematic diagram of the structure of the base and the gas explosion device;

[0046] Figure 12 for Figure 9 Schematic diagram of the lifting mechanism;

[0047] Figure 13 for Figure 12 Longitudinal cross-section;

[0048] Figure 14 Structure diagram of the air explosion device and the material receiving pipe

[0049] Figure 15 Structure diagram of S300 in a ton barrel connection method of embodiment 3 of the present application

[0050] Figure 16 Structure diagram of S400 in a ton barrel connection method of embodiment 3 of the present application

[0051] Figure 17 Structure diagram of Figure 1 Partial enlarged view of 1-A of

[0052] Figure 18 Structure diagram of a cover changing device of embodiment 4 of the present application

[0053] BRIEF DESCRIPTION OF THE DRAWINGS

[0054] 100, base; 110, weighing mechanism; 120, locking mechanism; 121, support rod; 122, pressing plate; 123, roller; 124, moving cylinder; 130, limiting baffle

[0055] 200, receiving frame; 210, vibration mechanism; 220, damping device

[0056] 300, material receiving pipe; 301, inner pipe; 302, outer pipe; 310, discharging valve; 311, butterfly valve; 312, hand wheel; 313, valve opening mechanism; 3131, valve opening claw; 3132, motor; 3133, valve opening cylinder; 320, elastic device; 321, elastic air bag; 322, limiting rod; 330, dustproof sleeve; 340, mounting flange; 350, nitrogen inlet; 360, breather valve

[0057] 400, feeding pipe

[0058] 500, control system

[0059] 600, air explosion device; 610, air explosion steel pipe; 620, gas storage tank; 630, lifting mechanism; 631, fixed platform; 632, lifting platform; 633, lifting cylinder; 634, lifting material pipe; 635, lifting guide rod; 636, guide rod fixing seat; 637, linear bearing; 640, electromagnetic pulse valve

[0060] 700, cover changing device; 710, frame body; 720, sliding rail; 730, grabbing mechanism; 740, barrel cover

[0061] 800, ton barrel; 810, support; 820, discharging port

[0062] The object, features and advantages of the drawings will be further illustrated in conjunction with embodiments, with reference to the drawings. DETAILED DESCRIPTION

[0063] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0064] Embodiment 1

[0065] In one aspect, referring to Figure 1 and Figure 2 , a ton bucket connection platform of the present application comprises a base 100, a receiving frame 200, a material receiving pipe 300, a material feeding pipe 400 and a control system 500;

[0066] The base 100 is provided with a weighing mechanism 110 for weighing the weight of the ton bucket 800; the receiving frame 200 is installed on the upper end surface of the base 100 and is provided with a vibration mechanism 210 for carrying the ton bucket 800 and vibrating the ton bucket 800; the material receiving pipe 300 is elastically installed on the receiving frame 200, one end of the material receiving pipe 300 is connected with the discharge port 820 of the ton bucket 800 through a discharge valve 310, the other end is inserted into the material feeding pipe 400 and moves axially along the material feeding pipe 400; the control system 500 is electrically connected with the weighing mechanism 110, the vibration mechanism 210 and the discharge valve 310 respectively.

[0067] Specifically, referring to Figure 3As shown, the base 100 is a square frame structure, the lower end is fixed on the working platform; the base 100 is welded by high-strength carbon steel to ensure that it can stably bear the ton barrel 800 filled with tungsten carbide powder; the upper end surface of the frame of the base 100 is a carbon steel plate structure, which is used to arrange other mechanisms of the ton barrel docking platform, such as the weighing mechanism 110 and the damping device 220. The weighing mechanism 110 is composed of weighing sensors, which are uniformly embedded in the mounting slots on the upper end surface of the base 100. The top of the weighing sensor is attached to the bottom of the receiving frame 200 to collect the total weight of the ton barrel 800 and the material in the ton barrel 800 in real time. The data of the total weight is transmitted to the control system 500 through an analog signal. The vibration mechanism 210 is a vibration motor 3132 installed on the side of the receiving frame 200. Its vibration frequency can be adjusted through the control system 500 to ensure that the ton barrel 800 is uniformly stressed during vibration and to avoid local material accumulation. The material receiving pipe 300 is a hollow tubular structure. The end close to the ton barrel 800 is designed in a funnel shape and is connected to the discharge port of the ton barrel 800, which makes it more convenient to discharge the ton barrel 800 and effectively prevents material overflow. The upper end port of the material receiving pipe 300 is screwed with a mounting flange 340, which constitutes a transition structure for the elastic connection of the material receiving pipe 300 and the receiving frame 200. When the flange of the discharge port of the ton barrel 800 is connected to the mounting flange 340 at the upper end of the material receiving pipe 300, the weight of the ton barrel 800 itself and the tungsten carbide material inside will exert an axial downward pressure on the mounting flange 340. Because the material receiving pipe 300 and the receiving frame 200 are elastically connected and have compressibility, the material receiving pipe 300 will move downward along its own axis. This elastic deformation can not only adapt to the height deviation of different ton barrels 800 due to manufacturing tolerances and differences in material loading, but also ensure that the flange of the discharge port of the ton barrel 800 and the mounting flange 340 of the material receiving pipe 300 are always tightly attached, preventing dust-like material from overflowing from the joint gap during discharge. It can also buffer the impact load during the connection of the ton barrel 800, reducing the hard collision between the discharge port of the ton barrel 800 and the mounting flange 340 of the material receiving pipe 300, effectively protecting the sealing surface of the mounting flange 340 and the structural integrity of the material receiving pipe 300, and prolonging the service life of the equipment. The feeding pipe 400 is made of stainless steel seamless steel pipe and is fixed on the working platform of the ton barrel docking platform. It is connected to other low-level process equipment and is used to send the material in the ton barrel 800 to other low-level process equipment. The other end of the material receiving pipe 300 (the end away from the ton barrel 800) is inserted into one end of the feeding pipe 400 and moves axially along the feeding pipe 400 to cooperate with the compressibility of the material receiving pipe 300. The diameter of the feeding pipe 400 is matched with that of the material receiving pipe 300, which not only ensures the smooth movement of the material receiving pipe 300, but also forms a closed channel for material conveying. A discharge valve 310 is provided at the lower end of the discharge port of the ton barrel 800 to control the communication between the material receiving pipe 300 and the ton barrel 800.The control system 500 adopts a PLC controller with a touch screen operation interface. It is electrically connected to the frequency converters of the weighing mechanism 110 and the vibration mechanism 210 and the actuator of the feeding valve 310 through signal lines. It can receive the weight data of the ton 800 fed back by the weighing mechanism 110 in real time, and automatically send start and stop frequency adjustment signals to the vibration mechanism 210 and open and close commands to the feeding valve 310 according to preset logic, so as to realize intelligent linkage control of the feeding process of the ton 800 without manual intervention.

[0068] Moreover, see Figure 2 As shown, a dustproof sleeve 330 is fitted at the connection between the receiving pipe 300 and the feeding pipe 400. The telescopic dustproof sleeve 330, made of polyurethane bellows, is fitted at the connection between the receiving pipe 300 and the feeding pipe 400, with hose clamps at both ends. When the ton containers 800 are connected, the receiving pipe 300 moves downwards along the axial direction under pressure, and the dustproof sleeve 330 contracts simultaneously. When the ton containers 800 are removed, due to the compressibility of the receiving pipe 300, it resets, and the dustproof sleeve 330 extends accordingly, always preventing external dust from entering the connection gap, while ensuring that the axial movement of the receiving pipe 300 is unimpeded. This perfectly utilizes its elastic compression characteristics to adapt to the height deviations of different ton containers 800.

[0069] Additionally, see Figure 3 As shown, a shock-absorbing device 220 is provided between the supporting frame 200 and the base 100. The shock-absorbing device 220 is a rubber shock absorber, which is installed on the base 100. The damping coefficient is adjustable and can absorb the vibration energy generated by the vibration mechanism 210, so as to avoid the vibration being transmitted to the base 100 and affecting the measurement accuracy of the weighing mechanism 110.

[0070] Further, see Figure 1 , Figure 4 and Figure 5 As shown, it also includes a valve opening mechanism 313, which includes a valve opening claw 3131, a motor 3132 and a valve opening cylinder 3133. The motor 3132 drives the valve opening claw 3131 to rotate, and the valve opening cylinder 3133 drives the valve opening claw 3131 to move. The motor 3132 and the valve opening cylinder 3133 are electrically connected to the control system 500 respectively.

[0071] Specifically, see Figure 3As shown, a butterfly valve 311 is installed at the discharge port of the ton barrel 800, the butterfly valve 311 is a flange type butterfly valve made of stainless steel, and the sealing surface is made of polytetrafluoroethylene material to ensure that the tungsten carbide powder does not leak. The butterfly valve 311 includes a valve body and a valve core, the valve core is rotatably arranged in the middle of the valve body, and can rotate by 0-90° to complete the communication and isolation between the receiving pipe 300 and the ton barrel 800. A hand wheel 312 is arranged on the valve body, the hand wheel 312 is fixedly connected with the valve core and has an included angle of 90°, and the rotation of the hand wheel 312 drives the rotation of the valve core. Referring to Figure 1 As shown, the hand wheel 312 is matched with an opening valve mechanism 313, and the rotation of the hand wheel 312 is controlled through the opening valve mechanism 313. The opening valve mechanism 313 is fixed on the side edge of the base 100 through a shelf, and the opening valve mechanism 313 includes an opening valve claw 3131, a motor 3132 and an opening valve cylinder 3133. Referring to Figure 5 As shown, the opening valve claw 3131 is a hand-shaped structure matched with the hand wheel 312, the opening valve claw 3131 can be inserted into the gap on the hand wheel 312, and through rotation adjustment, the opening valve claw 3131 can be tightly attached to the rim of the hand wheel 312 to avoid slipping during rotation; the motor 3132 is a servo motor, which drives the opening valve claw 3131 to rotate accurately through a gear reduction mechanism, and realizes the 0-90° opening and closing control of the butterfly valve 311; when the opening valve claw 3131 needs to control the hand wheel 312, the opening valve cylinder 3133 pushes the opening valve claw 3131 to move towards the hand wheel 312, and after successful docking, the motor 3132 is started to rotate, and after the valve core is opened and closed to the position, the opening valve cylinder 3133 is reset, and the opening valve claw 3131 is separated from the hand wheel 312. The motor 3132 and the opening valve cylinder 3133 are respectively electrically connected with the digital output module of the control system 500 through shielded signal lines, and are electrically connected with the control system 500 to form a stable instruction transmission link. The control system 500 is wirelessly connected with the AGV, and when the ton barrel 800 is placed in the ton barrel docking table by the AGV and is docked with the receiving pipe 300, the AGV sends a "barrel entering completion signal" wireless trigger signal to the control system 500, and the control system 500 receives the signal and starts or stops the opening valve cylinder 3133 and the motor 3132 in sequence, thereby automatically realizing the opening and closing of the discharge valve 310.

[0072] Moreover, according to the actual situation, the staff can also rotate the hand wheel 312 to drive the opening and closing of the butterfly core, instead of using the opening valve mechanism 313.

[0073] In addition, when the ton barrel 800 is placed in the ton barrel docking table by the ordinary forklift, manual control of the control system 500 is needed to assist in controlling the butterfly valve 311 by the opening valve mechanism 313.

[0074] Further, referring to Figures 6 to 8As shown, the receiving pipe 300 is elastically mounted on the receiving frame 200 through the elastic device 320; the elastic device 320 includes an elastic air bag 321, one end of the elastic air bag 321 is fixed to the receiving pipe 300, and the other end is in abutment with the receiving frame 200; a limiting rod 322 for limiting the axial direction of the receiving pipe 300 is arranged between the receiving pipe 300 and the receiving frame 200.

[0075] Specifically, a horizontal annular mounting plate one is welded on the side wall of the receiving pipe 300 close to the upper end, and a vertical annular mounting plate two parallel to the mounting plate one is welded on the top support platform of the receiving frame 200, and the annular elastic air bag 321 is fixed between the mounting plate one and the mounting plate two, the upper end and the lower end of the elastic air bag 321 are respectively matched with the sealing grooves of the mounting plate one and the mounting plate two, O-shaped rubber sealing rings are embedded in the grooves, and the air tightness is completed by the bolt pre-tightening force to avoid air leakage after inflation and realize the elastic connection between the receiving pipe 300 and the receiving frame 200. The elastic air bag 321 is made of oil-resistant rubber material, and a nitrogen inlet 350 is arranged below the elastic air bag 321 for inflating or discharging compressed air in the interior, adjusting the elastic coefficient through air pressure, and adapting to the height deviation of different specifications of ton barrels 800. The limiting rods 322 are uniformly distributed between the mounting plate one and the mounting plate two, the upper end of the limiting rod 322 is fixedly connected with the mounting plate one of the receiving pipe 300, and the other end is vertically directed to the mounting plate two, which can limit the axial movement distance of the receiving pipe 300 and prevent the elastic air bag 321 from being damaged due to excessive compression or stretching. When the ton barrel 800 is docked, the receiving pipe 300 is driven to move downward by the pressure, the elastic air bag 321 is compressed, and the limiting rod 322 is in contact with the mounting plate two, at this time, the maximum downward movement of the receiving pipe 300 is limited within a safe range, avoiding the rupture of the elastic air bag 321 due to excessive compression; after the ton barrel 800 is removed, the elastic air bag 321 is reset under the action of air pressure, the receiving pipe 300 moves upward, and the limiting rod 322 moves upward synchronously with the mounting plate one, since the initial distance between the mounting plate one and the mounting plate two is greater than the free length of the elastic air bag 321, the upward limit of the receiving pipe 300 can be naturally limited, preventing the elastic air bag 321 from being excessively stretched, thereby effectively protecting the service life of the elastic air bag 321.

[0076] Further, referring to Figure 1 and Figure 17 As shown, supports 810 are welded around the ton barrel 800, the supports 810 are mounted on the receiving frame 200, and the base 100 is provided with a locking mechanism 120 for fixing the supports 810, and the locking mechanism 120 is electrically connected with the control system 500.

[0077] Specifically, the support 810 is a rectangular frame of angle steel welded on the outside of the bottom of the ton barrel 800 to evenly transmit the weight of the ton barrel 800 to the receiving frame 200; the upper end surface of the receiving frame 200 is provided with a positioning groove matched with the support 810, and the support 810 is placed into the positioning groove to realize the preliminary positioning of the ton barrel 800; the locking mechanism 120 is composed of two groups of locking units symmetrically distributed around the base 100, and each group of locking units is composed of a support rod 121 arranged in the longitudinal direction and a pressing plate 122 perpendicular to the support rod 121 and movable radially along the support rod 121. The lower end of the support rod 121 is welded on the side of the base 100 and additionally reinforced with expansion bolts, so as to ensure that the support rod 121 does not bend and deform when bearing radial pressure; a guide hole is formed in the position close to the top end of the support rod 121 to provide movement guidance for the pressing plate 122. The pressing plate 122 is provided with movement power by a hydraulic rod or a moving cylinder 124 arranged on the side of the support rod 121; the lower end surface of the pressing section is polished smooth and then pasted with a nitrile rubber anti-skid pad to avoid scratching the surface of the support 810 during pressing and to improve the static friction; the pressing plate 122 passes through the guide hole of the mounting seat of the support rod 121, and the pressing plate 122 is movable radially (towards the support 810) along the support rod 121 until the rubber pad on the lower end surface of the pressing plate 122 tightly abuts against the upper end surface of the support 810. A roller 123 is installed on the inner lower end surface of the guide hole of the support rod 121 (in contact with the upper end surface of the pressing plate 122), and the pressing plate 122 is rollingly connected with the inner guide hole of the support rod 121 through the roller 123 to reduce the friction of the contact surface and improve the smoothness of movement. Further, the pressing plate 122 moves forward and backward through the moving cylinder 124, and the moving cylinder 124 is fixed on the lower end surface of the pressing plate 122; the moving cylinder 124 is electrically connected with the control system 500 and controlled by the control system 500 to work, so that the pressing plate 122 moves.

[0078] In addition, limit baffles 130 are arranged at the four corners of the receiving frame 200 as positioning grooves to abut against the supporting legs of the support 810 of the ton barrel 800; during the vibration of the ton barrel 800, the stability of the ton barrel 800 is ensured.

[0079] Furthermore, a breather valve 360 is arranged on the receiving pipe 300.

[0080] On the other hand, a ton barrel connection method of the present application adopts the above-mentioned ton barrel connection platform and comprises the following steps:

[0081] S100, setting the vibration duration threshold of the vibration mechanism 210 through the parameter setting interface of the control system 500 and setting the calibration empty weighing value and the calibration weight value through the setting interface of the weighing mechanism 110;

[0082] S200, placing the ton barrel 800 on the receiving frame 200, and abutting the discharge opening of the ton barrel 800 against the receiving pipe 300;

[0083] S300, the control system 500 starts the opening valve program, opens the discharge valve 310, and stops the opening valve program when the discharge valve 310 is opened to the position, and the ton barrel 800 is discharged;

[0084] S400, start the vibration program, control system 500 opens the vibration mechanism 210, makes the ton barrel 800 vibrate; stop vibrating after the vibration duration threshold; start the valve closing program signal feedback to the control system 500, control system 500 closes the discharge valve 310;

[0085] S500, start the weighing program, lift the weighing mechanism 110 to detect the weight in the ton barrel 800; if the detected weight of the ton barrel 800 reaches the calibrated empty scale value, lower the weighing mechanism 110, initialize the control system 500, and wait for the ton barrel 800 to be taken away; if the detected weight in the ton barrel 800 is greater than the calibrated empty scale value, repeat S300;

[0086] S600, take away the ton barrel 800.

[0087] Specifically, the modern tungsten carbide powder production line has established a WMS warehouse system through the ton barrel 800 as a storage medium, and the WMS warehouse system completely obeys the instructions of the upper MES production scheduling and assigns specific tasks to the RCS system for specific implementation. The functions of automatic conveying, transfer, weighing, cap changing, warehousing and de-warehousing from the warehouse to each station are realized by using forklifts or AGVs.

[0088] Further, in S200, after the ton barrel 800 is placed on the receiving frame 200, the control system 500 controls the locking mechanism 120 to automatically lock the support 810, and in S400, after the discharge valve 310 is closed, the control system 500 controls the locking mechanism 120 to automatically unlock.

[0089] Specifically, after the ton barrel 800 is placed in position in S200, the weighing mechanism 110 detects that the weight is stable, i.e. sends a "in position signal" to the control system 500, and the control system 500 then controls the movement of the two locking mechanisms 120 to press down the support 810 of the ton barrel 800. After pressing, a "locking signal" is fed back to the control system 500, and the control system 500 only starts the opening valve program in S300. After the discharge valve 310 is closed to the position in S400, the control system 500 delays for 5s to ensure that the remaining material falls into the feeding pipe 400, and then controls the movement of the locking mechanism 120 to disengage the support 810 of the ton barrel 800. After unlocking, a "unlocking signal" is fed back to avoid equipment damage caused by forced movement when not unlocked. Moreover, in S200, after the locking mechanism 120 locks the support 810 of the ton barrel 800, the elastic air bag 321 is inflated to support between the receiving frame 200 and the receiving pipe 300, so that the ton barrel 800 is stably installed.

[0090] In addition, in S300, the discharging valve 310 can be opened by manual operation or by the valve opening mechanism 313.

[0091] Embodiment 2

[0092] The workbench of the ton barrel connection platform is arranged at a high position, for example, a high position platform 5 meters away from the ground. The ton barrel 800 at the upper end of the ton barrel connection platform is lifted and transferred to the receiving frame 200 by a forklift or an AGV, so that the ton barrel 800 is connected with the material receiving pipe 300. The lower end of the ton barrel 800 connection platform is communicated with a low-position process equipment, so as to complete the integrated discharging link of the ton barrel 800, improve the automation, and reduce the transportation cost.

[0093] In one aspect, the ton barrel connection platform comprises a base 100, a receiving frame 200, a material receiving pipe 300, a feeding pipe 400 and a control system 500.

[0094] The base 100 is provided with a weighing mechanism 110 for weighing the weight of the ton barrel 800. The receiving frame 200 is installed on the upper end surface of the base 100 and is provided with a vibration mechanism 210 for carrying the ton barrel 800 and vibrating the ton barrel 800. The material receiving pipe 300 is elastically installed on the receiving frame 200. One end of the material receiving pipe 300 is connected with a discharge port of the ton barrel 800, and the other end is inserted into the feeding pipe 400 and moves axially along the feeding pipe 400. The material receiving pipe 300 is provided with a discharging valve 310 at the connection position with the ton barrel 800. The control system 500 is electrically connected with the weighing mechanism 110, the vibration mechanism 210 and the discharging valve 310 respectively.

[0095] The base 100 is an integral square frame structure of 1800 mm x 1500 mm x 300 mm, which is fixed on the hardened high platform in the workshop by bolts; it meets the bottom support requirements of the conventional 1000L-1200L ton barrel 800 on the market. The base 100 is welded and formed by Q355B high-strength carbon steel, the cross-sectional size of the main frame beam and the longitudinal beam is 80 mm x 40 mm x 5 mm, the top of the main frame is fully paved with a 12 mm thick hot-rolled carbon steel plate as a bearing surface, the surface of the hot-rolled carbon steel plate is treated by sand blasting and then sprayed with epoxy resin anti-rust paint with a dry film thickness of ≥60 μm, which not only improves wear resistance but also resists the dust and slight corrosive environment in the tungsten carbide powder production workshop; the overall bearing capacity of the base 100 is not less than 2 tons. In order to adapt to the installation of the weighing mechanism 110, four groups of symmetrical installation grooves are provided on the top hot-rolled carbon steel plate of the base 100, which are located at the four corner regions of the square frame of the base 100, 300 mm away from the edges of the square frame, each group of installation grooves has a size of 150 mm x 100 mm x 20 mm, and M12 internal thread holes are provided at the bottom of the grooves for fixing the weighing sensor. At the same time, foot assemblies with adjusting bolts are welded at the bottom four corners of the base 100, the foot bolts have a diameter of M16 and an adjusting stroke of 50 mm, and when installing, the base 100 can be leveled by rotating the adjusting bolts to ensure that the horizontal error of the top bearing surface is ≤0.1° / m, avoiding the influence of the inclination of the base 100 on the weighing accuracy.

[0096] The weighing mechanism 110 selects three groups of high-precision resistance strain type weighing sensors of the same specification, which effectively isolates the workshop dust and a small amount of splashing water. Each group of weighing sensors is installed in the installation groove of the base 100 by a pneumatic cylinder, and a 2 mm thick nitrile rubber buffer pad is provided between the top of the weighing sensor and the bottom of the receiving frame 200, which not only avoids damage to the sensor caused by metal hard contact, but also can absorb slight vibration interference on weight detection. The three groups of weighing sensors are connected in parallel, the total weight signal is converted into a 4mA-20mA analog signal by a matching weighing transmitter, and then transmitted to the analog input module of the control system 500 through a shielded cable, realizing real-time collection of the total weight of the ton barrel 800 and the internal material, the data update frequency is 1 Hz, ensuring the dynamic monitoring accuracy of the weight change during unloading, and the measurement accuracy can reach ±0.33 kg.

[0097] The vibration mechanism 210 is a horizontal vibration motor installed in the middle of the side edge of the receiving frame 200. The vibration motor is fixed on the side reinforcement plate of the receiving frame 200 by four M10 flange bolts. A 5mm thick silicone rubber damping pad is placed between the vibration motor and the reinforcement plate to reduce the transmission of vibration to the base 100, with a damping rate of ≥60%, to avoid affecting the detection stability of the weighing mechanism 110. The power circuit of the vibration motor is connected in series with a frequency converter, which is connected with the digital output module of the control system 500. The vibration frequency is set by the control system 500, and the vibration frequency adjustment range is 20Hz-50Hz. For tungsten carbide coarse powder (particle size ≥5μm), the vibration frequency is usually set to 25Hz-30Hz; for tungsten carbide fine powder (particle size <5μm), the vibration frequency is set to 35Hz-40Hz, to ensure that powders of different particle sizes can be effectively loosened and avoid local accumulation and blockage of the discharge port 820 of the ton barrel 800.

[0098] A 10mm thick positioning steel plate is also welded at the part of the bottom of the receiving frame 200 that contacts the weighing sensor. The thickness of the positioning steel plate can be adjusted according to the actual situation. A 5mm diameter guide hole is provided in the center of the positioning steel plate, which cooperates with the positioning pin in the mounting groove of the base 100 to limit the horizontal displacement of the receiving frame 200, ensuring that the receiving frame 200 always stays in the center area of the base 100 during vibration, further improving the stability of the equipment operation.

[0099] The receiving pipe 300 is a hollow tubular structure made of a 304 stainless steel seamless steel pipe, with a total length of 800 mm. The upper 300 mm section of the pipe near the ton barrel 800 is designed as a funnel-shaped transition structure. The upper opening diameter of the funnel matches the discharge port 820 of the ton barrel 800, which is generally 254 mm. The lower opening diameter of the funnel is consistent with the main pipe diameter of the receiving pipe 300, which is generally 180 mm. The taper is set to 30°, which not only ensures that the tungsten carbide powder can smoothly slide down by gravity, especially for fine powder with a particle size of ≤5 μm, but also reduces the alignment accuracy requirement of the discharge port 820 of the ton barrel 800 and the receiving pipe 300 by expanding the butt joint area. The inner diameter of the funnel is mirror polished to reduce powder adhesion and residues. A 10 mm high flange is welded on the edge of the funnel to further prevent dust from spilling out of the edge during discharge. The upper end port of the receiving pipe 300 is equipped with a 400X400 square mounting flange 340 through an M16 bolt. The thickness of the mounting flange 340 is 16 mm, which matches the flange of the discharge port 820 of the ton barrel 800. The elastic air bags 321 are circular double-layer elastic air bags, with two air bags symmetrically placed on both sides of the receiving pipe 300. The upper end surface of each air bag is fixed to the lower end surface of the mounting flange 340, and the lower end surface of each air bag abuts against the support platform of the receiving frame 200, forming an adjustable elastic support. Each air bag is provided with a compressed air inlet and outlet at the lower end for compression and rebound of the air bag. The diameter of the air bag is 220 mm, and the height of each layer is 50 mm. The material of the air bag is nitrile rubber. When the flange of the discharge port of the ton barrel 800 is aligned and connected with the mounting flange 340 of the receiving pipe 300, the total weight of the ton barrel 800 and the material inside is 1500-2000 kg, which exerts an axial downward pressure on the mounting flange 340. At this time, the air bag is compressed, and the receiving pipe 300 moves downward along the axial direction by 0-50 mm. The elastic deformation of the air bag can adapt to the height deviation of different ton barrels 800 due to manufacturing tolerances and differences in material loading, ensuring that the two flanges are always in close communication, preventing dust-like material from spilling out from the root cause, effectively protecting the structural integrity of the receiving pipe 300, and prolonging the replacement cycle of the vulnerable parts.

[0100] The feeding pipe 400 is made of 316L stainless steel seamless pipe, which is more corrosion resistant than 304, and is suitable for the trace amount of acidic impurities in tungsten carbide powder. The pipe diameter of the feeding pipe 400 is matched with the receiving pipe 300. The outer diameter of the lower end of the receiving pipe 300 is 180 mm, the outer diameter of the feeding pipe 400 is 219 mm, and the inner diameter of the feeding pipe 400 is 213 mm. The single-side gap between the outer diameter of the receiving pipe 300 and the inner diameter of the feeding pipe 400 is 16.5 mm, which ensures that the receiving pipe 300 does not jam when it is lifted, and reduces the overflow of dust from the gap. The feeding pipe 400 is horizontally fixed on the high platform, and one end of the feeding pipe 400 extends to the position directly below the receiving pipe 300. The receiving pipe 300 is inserted into the feeding pipe 400 by a depth of 80-100 mm to ensure that there is still an overlapping section when the receiving pipe 300 is lowered to the limit position. The other end of the feeding pipe 400 is connected with the low process equipment to form a completely sealed material conveying channel. The outer sleeve (with an outer diameter of 219 mm and an inner diameter of 213 mm) of the receiving pipe 300 is also sleeved with an extendable dust-proof sleeve 330 at the connection position with the feeding pipe 400. The dust-proof sleeve 330 is made of polyurethane material, has a length of 200 mm, and an extension amount of 50 mm. The two ends of the sleeve are fixed on the outer wall of the outer sleeve of the receiving pipe 300 and the flange of the feeding pipe 400 by stainless steel throat clamps, respectively, and are synchronously extended and retracted with the movement of the receiving pipe 300, thereby completely isolating the intrusion of external dust.

[0101] A feeding valve 310 is arranged between the flange 340 on the upper end of the receiving pipe 300 and the discharge port 820 of the ton barrel 800. The control system 500 includes a PLC and a touch screen, which are fixed on the base 100. The PLC receives the 4mA-20mA weight signal of the weighing mechanism 110 through an analog input module, and the sampling frequency is 10 Hz. The PLC controls the start and stop of the frequency converter of the vibration mechanism 210 and the actuator of the feeding valve 310 through a digital output module. The touch screen displays the weight of the ton barrel 800, the opening degree of the feeding valve 310, and the vibration frequency in real time, and supports switching between manual mode and automatic mode. In the automatic mode, the control system 500 has the following preset logic: when the weight of the ton barrel 800 decreases to 30% of the full barrel weight, the vibration mechanism 210 is automatically started; when the weight decreases to the value of the empty barrel weight+5 kg, the feeding valve 310 is closed, and the vibration is maintained for 10 seconds to remove the residual material during the closing process. The whole process does not require manual intervention, and realizes intelligent closed-loop control of the ton barrel 800.

[0102] The butterfly valve 311 is a flange type butterfly valve made of stainless steel, and the sealing surface is made of polytetrafluoroethylene material to ensure that the tungsten carbide powder does not leak; the motor 3132 is a servo motor with a rated torque of 5 N·m, which drives the valve jaw 3131 to rotate precisely through a gear reduction mechanism to realize the 0-90° opening and closing control of the butterfly valve 311; when the hand wheel 312 needs to be rotated, the valve opening cylinder 3133 pushes the valve jaw 3131 to move towards the hand wheel 312, and when the valve jaw 3131 is inserted into the gap of the hand wheel 312, the motor 3132 starts to rotate, and after the butterfly valve 311 is opened and closed, the valve opening cylinder 3133 is reset, and the valve jaw 3131 is retracted to disengage the hand wheel 312.

[0103] In another aspect, a ton barrel connection method of the present application adopts the above-mentioned ton barrel connection platform, comprising the following steps:

[0104] S100, set the vibration duration threshold of the vibration mechanism 210 to 10 min, 15 min or 20 min through the parameter setting interface of the control system 500, and set the calibration empty weighing value to 300 kg and the calibration weight value to 305 kg through the setting interface of the weighing mechanism 110;

[0105] S200 includes S201 and S202; S201, the docking of the ton barrel 800 is realized by AGV transfer, the AGV places the ton barrel 800 in the four limiting baffles 130 of the receiving frame 200, when the AGV carrying the ton barrel 800 moves to above the ton barrel connection platform, the ton barrel 800 is accurately placed in the four limiting baffles 130 of the receiving frame 200 through laser positioning, and after the discharge port 820 of the ton barrel 800 is aligned with the mounting flange 340 at the upper end of the material receiving pipe 300, the AGV sends a wireless trigger signal of "barrel entering completion signal" to the control system 500;

[0106] S202, after the control system 500 receives the signal, the opening and closing of the discharge valve 310 is started again;

[0107] S300 includes S301, S302 and S303; S301, when the discharge valve 310 is opened, the control system 500 first sends a "extension" instruction to the valve opening cylinder 3133, the piston rod of the valve opening cylinder 3133 pushes the valve jaw 3131 to move towards the hand wheel 312 of the discharge port 820 of the ton barrel 800, at this time the valve jaw 3131 may not be able to extend into the hand wheel 312, a magnetic switch is set in the control system 500 to determine whether the jaw extends into the hand wheel 312; if the valve jaw 3131 does not move to the position, the valve jaw 3131 is retracted, rotated by an angle of 3° and then extended, and the cycle is repeated, and when the repeated action exceeds 12 times, the control system 500 alarms and displays an abnormality;

[0108] S302, when the valve claw 3131 is extended to the position, the feedback "move to the position" signal is sent to the control system 500; the control system 500 immediately sends the "forward rotation" instruction to the motor 3132, the motor 3132 drives the valve claw 3131 to rotate synchronously through the gear reduction mechanism, drives the hand wheel 312 to rotate to open the butterfly core, when the motor 3132 encoder detects that the rotation angle reaches 90°, that is, the butterfly core full open position, or the travel switch of the discharge valve 310 triggers the "full open signal" to the control system 500, stop the valve opening program;

[0109] S303, the control system 500 immediately stops the motor 3132 from running, and sends the "retraction" instruction to the valve opening cylinder 3133, the valve claw 3131 is separated from the hand wheel 312 reset, completes the discharge valve 310 opening action tons barrel 800 discharge;

[0110] S400 includes S401, S402 and S403; S401, the control system 500 immediately starts the vibration mechanism 210, the vibration frequency is set according to the material characteristics, for example, for tungsten carbide coarse powder, the vibration frequency of the vibration mechanism 210 is set to 30 Hz; for tungsten carbide fine powder, the vibration frequency of the vibration mechanism 210 is set to 40 Hz; after the vibration duration threshold, stop vibration; the start valve closing program signal feedback to the control system 500, the control system 500 closes the discharge valve 310;

[0111] S402, when closing the valve, the process is reversed: the control system 500 first controls the valve opening cylinder 3133 to push the valve claw 3131 to move to the hand wheel 312 of the discharge port 820 of the tons barrel 800, at this time the valve claw 3131 may not be able to extend into the hand wheel 312, set the valve claw 3131 moving to the magnetic open in the control system 500, to determine whether the claw extends into the hand wheel 312; if the valve claw 3131 does not move to the position, retract the valve claw 3131, rotate an angle of 1°-5° and then extend, repeat the cycle, when the control system 500 alarms for more than 12 times, display abnormality;

[0112] S403, drive the motor 3132 to reverse, until the encoder detects the rotation angle back to 0° or the travel switch triggers the "full close signal", then the motor 3132 stops rotating, the valve opening cylinder 3133 retracts, at the same time the control system 500 feedbacks the "valve closing completion" signal to the AGV, ready for subsequent tons barrel 800 transfer;

[0113] S500, start the weighing procedure, the control system 500 controls the lifting of the weighing mechanism 110, the weighing mechanism 110 detects the weight in the ton barrel 800 and transmits the weight data to the control system 500; if it is detected that the weight in the ton barrel 800 reaches the calibrated empty weighing value 305 kg, the weighing mechanism 110 is lowered, the control system 500 is initialized, and the ton barrel 800 is taken away; if it is detected that the weight in the ton barrel 800 is greater than the calibrated empty weighing value 305 kg, S301 is repeated;

[0114] S600, the AGV takes away the ton barrel 800.

[0115] Embodiment 3

[0116] The difference between this embodiment and embodiment 1 is that, on the one hand, as shown in Figures 9 to 16 The ton barrel docking platform in this embodiment further comprises a gas explosion device 600, the gas explosion device 600 comprises a gas explosion steel pipe 610, a gas storage tank 620 in communication with one end of the gas explosion steel pipe 610 and used for providing compressed air, and a lifting mechanism 630 used for lifting the gas explosion steel pipe 610, the lifting mechanism 630 is fixed on the base 100, and the other end of the gas explosion steel pipe 610 is arranged inside the material receiving pipe 300.

[0117] For example, the gas explosion steel pipe 610 is a stainless steel pipe, a gas explosion nozzle is mounted on the end of the gas explosion steel pipe 610 close to the ton barrel 800, and the other end is in communication with the gas storage tank 620. The gas storage tank 620 is a vertical stainless steel gas storage tank 620, which ensures stable supply of compressed air. The gas explosion steel pipe 610 is lifted by the lifting mechanism 630, the lifting mechanism 630 is mounted on one side of the base 100 close to the ton barrel 800, drives the gas explosion steel pipe 610 to realize a lifting stroke of 200 mm, and is suitable for ton barrels 800 of different heights. When the ton barrel 800 is loaded, the gas explosion steel pipe 610 is lowered to the lowest position to avoid interfering with the placement of the ton barrel 800, and is raised to the material area inside the ton barrel 800 after the docking is completed.

[0118] Further, an electromagnetic pulse valve 640 is arranged at the connection between the gas explosion steel pipe 610 and the gas storage tank 620, and the electromagnetic pulse valve 640 is electrically connected with the control system 500.

[0119] Specifically, the electromagnetic pulse valve 640 is a two-position five-way electromagnetic valve, the response time is ≤0.1 s, and the working pressure is 0.2 MPa-0.8 MPa. The opening and closing frequency of the electromagnetic pulse valve 640 is controlled by the control system 500. For example, when the gas explosion is started, the electromagnetic pulse valve 640 is periodically opened according to the set frequency, each opening time is 0.2 s-0.5 s, and the interval is 5 s-10 s. The compressed air in the gas storage tank 620 is sent into the gas explosion steel pipe 610 in the form of pulses, is sprayed out through the gas explosion nozzle, and scatters the agglomerated tungsten carbide powder in the ton barrel 800 and the material receiving pipe 300. The gas explosion nozzle is a downward tapered surface, and a gas injection hole is arranged on the downward tapered surface.

[0120] Further, referring to Figure 12 As shown in the figure, the lifting mechanism 630 includes a fixed platform 631, a lifting platform 632, a lifting cylinder 633, and a lifting pipe 634, wherein the lifting cylinder 633 is arranged between the lifting platform 632 and the fixed platform 631 for controlling the lifting of the lifting platform 632; the lifting pipe 634 is fixedly connected with the lifting platform 632 and is driven to rise or fall by the lifting platform 632; the gas explosion steel pipe 610 passes through and is fixed on the side wall of the lifting pipe 634 and is driven to rise or fall by the lifting pipe 634.

[0121] Specifically, the fixed platform 631 is fixed on the base 100 by expansion bolts to ensure the overall stability of the lifting mechanism 630; the lifting platform 632 is a rectangular steel plate, which is fixedly connected with the top end of the piston rod of the lifting cylinder 633; the lifting cylinder 633 is two, which are respectively arranged on the two sides of the lifting pipe 634 of the built-in gas explosion steel pipe 610. The lifting cylinder 633 is equipped with a magnetic ring and a proximity switch to detect the position of the lifting platform 632 in real time and feedback to the control system 500 to realize accurate positioning. The lifting pipe 634 is a stainless steel pipe, the inner diameter of which is 18 mm larger than the outer diameter of the receiving pipe 300 and the outer diameter of which is 9 mm smaller than the inner diameter of the feeding pipe 400. The lifting pipe 634 is driven to rise or fall by the lifting platform 632, and at the same time, it plays a role of auxiliary guiding the receiving pipe 300; the pipe wall at the corner of the gas explosion steel pipe 610 is fixed on the side wall of the lifting pipe 634 by a pipe clamp, and the two are arranged in parallel to ensure the stability of the position of the gas explosion steel pipe 610 during lifting.

[0122] Moreover, in the embodiment, referring to Figure 14 As shown in the figure, the receiving pipe 300 is a jacket, which includes an inner pipe 301 and an outer pipe 302. The upper end of the inner pipe 301 is connected with the discharge port 820 of the ton barrel 800, and the lower end is inserted into the lifting pipe 634. The upper end of the outer pipe 302 is fixedly connected with the outer wall of the inner pipe 301 through a flange, and the lower end of the outer pipe 302 is sleeved on the outer side wall of the lifting pipe 634. In other words, one end of the lifting pipe 634 is sleeved on the outer side wall of the receiving pipe 300, and the other end is inserted into the inside of the feeding pipe 400.

[0123] Further, referring to Figure 12 As shown in the figure, the fixed platform 631 is longitudinally fixed with a lifting guide rod 635, which is installed on the fixed platform 631 through a guide rod fixing seat 636. The lifting guide rod 635 passes through the lifting platform 632 and is slidably connected with the lifting platform 632 through a linear bearing 637. The lifting guide rod 635 is used for limiting the lifting platform 632 to make the lifting platform 632 stably lift.

[0124] Specifically, the length of the lifting guide rod 635 matches the stroke of the lifting cylinder 633; the lifting guide rod 635 is fixed on the fixed platform 631 through a guide rod fixing seat 636. The guide rod fixing seat 636 is a flange type fixing seat, which is connected with the fixed platform 631 through bolts to ensure that the lifting guide rod 635 is vertically fixed; the linear bearing 637 is a linear bearing, which is embedded in the mounting hole of the lifting platform 632 and is in clearance fit with the lifting guide rod 635, and has a small friction coefficient, which ensures that the lifting platform 632 does not jam during lifting, and ensures that the gas explosion steel pipe 610 can accurately extend into the ton barrel 800, avoiding collision with the inner wall of the ton barrel 800.

[0125] Further, a dustproof sleeve is sleeved between the outer wall of the outer pipe 302 of the material receiving pipe 300 and the upper part of the fixed plate of the lifting material pipe 634, and a dustproof sleeve is sleeved between the lower part of the fixed plate of the outer wall of the lifting material pipe 634 and the outer wall of the feeding pipe 400, which are used to prevent dust from overflowing.

[0126] Moreover, a breather valve 360 is arranged on the lifting material pipe 634.

[0127] On the other hand, the ton barrel connection method in the embodiment is shown in Figures 12 to 16 The gas explosion device 600 is installed, and in S100, the parameter setting of the control system 500 further includes setting the opening time, closing time and frequency threshold of the electromagnetic pulse valve 640; in S300, after stopping the valve opening program, the lifting mechanism 630 is controlled by the control system 500 to drive the gas explosion steel pipe 610 to rise into the ton barrel 800; in S400, after starting the vibration program, the gas explosion program is started synchronously, and the electromagnetic pulse valve 640 enters the compressed air into the ton barrel 800 through the gas explosion steel pipe 610 in the form of pulse according to the set opening time, closing time and frequency threshold; the vibration is stopped, and the gas explosion program is closed, and the lifting mechanism 630 drives the gas explosion steel pipe 610 to descend to the initial position.

[0128] Specifically, based on the ton barrel connection table with the gas explosion device 600, the embodiment optimizes the discharging process of tungsten carbide powder, improves the discharging efficiency through synergistic effect, and prevents the discharging channel from being blocked, and the specific steps are as follows:

[0129] S100: The operator enters the parameter setting interface through the touch screen of the control system 500, sets the vibration duration threshold of the vibration mechanism 210 through the parameter setting interface of the control system 500, sets the calibration empty weighing value and the calibration weight value through the setting interface of the weighing mechanism 110, and sets the electromagnetic pulse working parameter and the lifting position of the gas explosion steel pipe 610 through the gas explosion parameter setting interface:

[0130] Set the working parameters of the electromagnetic pulse valve 640: according to the particle size of the tungsten carbide powder, select the preset mode, select the fine powder mode (1-3 μm) as "on and off time interval 8 s", frequency 6 times / min; medium coarse powder mode (3-5 μm) is set as "on and off time interval is 12 s", frequency is 4 times / min; ensure that the pulse energy matches the powder agglomeration strength.

[0131] Lifting position of air explosion steel pipe 610: set the rising end position, 600 mm away from the bottom of ton barrel 800.

[0132] S200: AGV transports the ton barrel 800 full of tungsten carbide powder to the docking platform, and accurately places the ton barrel 800 in the limiting baffle 130 of the receiving frame 200 through the laser positioning system, and the discharge port 820 of the ton barrel 800 is aligned with the funnel-shaped upper end of the receiving pipe 300; the AGV sends a "bucket entering signal" signal to the control system 500:

[0133] The control system 500 starts the locking mechanism 120, and the two sets of locking devices press the support 810 of the ton barrel 800, and feedback "locking complete";

[0134] S300: manually rotate the hand wheel 312 of the discharge valve 310 by 90°, and open the discharge valve 310; at the same time, raise the air explosion device 600: control the piston rod of the lifting cylinder 633 of the lifting mechanism 630 to synchronously extend through the control system 500, drive the lifting platform 632, the lifting pipe 634 and the air explosion steel pipe 610 to rise, and stably move along the lifting guide rod 635 (radial deviation ≤2 mm), until the air explosion nozzle reaches the preset position away from the bottom of the ton barrel 800, and feedback "rising to position" signal to the control system 500; make the air explosion nozzle placed in the ton barrel 800; the powder in the ton barrel 800 relies on gravity to enter the lifting pipe 634 along the receiving pipe 300, and then enters the feeding pipe 400, and the discharging starts.

[0135] S400: start the vibration program, the control system 500 opens the vibration mechanism 210, and makes the ton barrel 800 vibrate; simultaneously start the air explosion device 600, the control system 500 sends a trigger signal to the electromagnetic pulse valve 640, the valve acts periodically according to the interval time and frequency set in S100, forms a pulse airflow to impact the powder agglomeration bridge area; after the vibration duration threshold, stop the vibration, start the stop air explosion program, the electromagnetic pulse valve 640 is immediately closed, at the same time, the piston rod of the lifting cylinder 633 is retracted, drives the air explosion steel pipe 610 to descend to the initial position, avoids interfering with the subsequent ton barrel 800 transportation, the pulse airflow is interrupted, the powder naturally settles under the action of vibration, avoids the continuous air jet leading to the powder splashing; the control system 500 closes the discharge valve 310;

[0136] Process monitoring is also included: the control system 500 collects the air explosion steel pipe 610 position signal, electromagnetic pulse valve 640 state and ton barrel 800 weight change in real time, if the abnormality such as "air explosion steel pipe jam" or "gas tank pressure is lower than 0.4 MPa" occurs, immediately trigger the sound and light alarm and suspend the air explosion process.

[0137] S500: start the weighing program, lift the weighing mechanism 110 to detect the weight in the ton barrel 800; when the weighing mechanism 110 detects that the total weight of the ton barrel 800 decreases to 305 kg (the calibrated empty weighing value is 300 kg + 5 kg redundancy), feedback "unloading complete" signal to the control system 500, then lower the weighing mechanism 110, initialize the control system 500; otherwise, repeat S300;

[0138] S600: the control system 500 controls the release of the pressing plate 122 of the locking mechanism 120, sends "unloading complete" signal to the AGV, the AGV transfers the empty ton barrel 800 to the cover changing station, the new ton barrel 800 is sent to the docking table by another AGV, and the process of S100-S400 is repeated.

[0139] Embodiment 4

[0140] The difference between this embodiment and embodiment 1 is that, as shown in Figure 18 The ton barrel docking table of the application further comprises a cover changing device 700 installed on the base 100, which comprises a frame body 710, a slide rail 720 transversely arranged at the upper end of the frame body 710, and a grabbing mechanism 730 for slidingly arranging a barrel cover 740 on the slide rail 720.

[0141] Specifically, the cover changing device 700 is divided into single barrel cover changing and double barrel cover changing, and is distributed at a specific position in the workshop. The number of cover changing devices 700 is a single digit. The difference is that when single barrel cover changing, a ton barrel 800 with a cover enters the cover changing device 700, the barrel cover 740 is taken out by the grabbing mechanism 730 and is always grabbed, at this time the ton barrel 800 is removed, until another ton barrel 800 without a cover enters the cover changing device 700 and the barrel cover 740 is put on the ton barrel 800 without a cover; while double barrel cover changing, two ton barrels 800 are placed side by side, one is a ton barrel 800 with a barrel cover 740, and the other is a ton barrel 800 without a barrel cover 740, the barrel cover 740 of the ton barrel 800 with a cover is taken off and changed to the ton barrel 800 without a cover to complete the cover changing, and then the AGV or forklift takes the barrel to the receiving frame 200. Further, usually the ton barrel 800 with a cover is an empty barrel, which needs to have the barrel cover 740 removed to receive material, and the ton barrel 800 without a cover is a barrel filled with material, which needs to have the barrel cover 740 put on to unload or enter the warehouse. In cooperation with other parts of the ton barrel docking table, the overall process flow time is greatly shortened, and the slide rail 720 in the cover changing device 700 can adapt to the cover grabbing of ton barrels 800 with different diameters, and flexibly cope with the single barrel or double barrel switching demand.

[0142] The above merely illustrates or supplements the structure of the present application or replaces it with similar ways, as long as it does not deviate from the structure of the present application or beyond the scope defined in the present claims, and shall belong to the protection scope of the present application.

Claims

1. A ton container docking platform, characterized in that, include: The base is equipped with a weighing mechanism for weighing the ton drum; The supporting frame is installed on the upper end face of the base and is equipped with a vibration mechanism for supporting the ton container and causing the ton container to vibrate. A receiving pipe is flexibly installed on the receiving frame. One end of the receiving pipe is connected to the ton barrel through a discharge valve, and the other end is inserted into the feeding pipe and moves axially along the feeding pipe. The control system is electrically connected to the weighing mechanism, the vibration mechanism, and the feeding valve, respectively.

2. The ton container docking platform according to claim 1, characterized in that, It also includes a valve opening mechanism, comprising a valve opening claw, a motor, and a valve opening cylinder. The motor drives the valve opening claw to rotate, and the valve opening cylinder pushes the valve opening claw to move. The motor and the valve opening cylinder are electrically connected to the control system.

3. The ton container docking platform according to claim 1, characterized in that, The receiving tube is elastically mounted on the receiving frame via an elastic device; the elastic device includes an elastic airbag, one end of which is fixed to the receiving tube and the other end of which abuts against the receiving frame; a limiting rod for limiting the receiving tube along its axial direction is provided between the receiving tube and the receiving frame.

4. The ton container docking platform according to claim 1, characterized in that, A bracket is welded around the ton container, and the bracket is mounted on the receiving frame. The base is provided with a locking mechanism for fixing the bracket, and the locking mechanism is electrically connected to the control system.

5. A ton container docking platform according to claim 1, characterized in that, It also includes a gas explosion device, which includes a gas explosion steel pipe, a gas storage tank connected to one end of the gas explosion steel pipe and used to provide compressed air, and a lifting mechanism for lifting the gas explosion steel pipe. The lifting mechanism is fixed on the base, and the other end of the gas explosion steel pipe is placed inside the ton container.

6. A ton container docking platform according to claim 5, characterized in that, An electromagnetic pulse valve is installed at the connection between the gas explosion steel pipe and the gas storage tank, and the electromagnetic pulse valve is electrically connected to the control system.

7. A ton container docking platform according to claim 5, characterized in that, The lifting mechanism includes a fixed platform, a lifting platform, a lifting cylinder, and a lifting material pipe. The lifting cylinder is arranged between the lifting platform and the fixed platform and is used to control the lifting of the lifting platform. The lifting material pipe is fixedly connected to the lifting platform and is driven to rise or fall by the lifting platform. The pneumatically operated steel pipe passes through and is fixed to the side wall of the lifting material pipe and is driven to rise or fall by the lifting material pipe.

8. A method for connecting ton containers, using a ton container connecting platform as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S100. Set the vibration duration threshold of the vibration mechanism through the parameter setting interface of the control system, and set the calibration empty weighing value and calibration weight value through the setting interface of the weighing mechanism. S200. Place the ton container on the receiving frame and connect the discharge port of the ton container to the receiving pipe. S300: The control system starts the valve opening procedure and opens the discharge valve. When the discharge valve is fully opened, the valve opening procedure stops and the ton container discharges. S400: Start the vibration program, the control system starts the vibration mechanism to make the ton container vibrate; after the vibration duration threshold is reached, the vibration program is turned off and the vibration stops; the valve closing program signal is fed back to the control system, and the control system closes the discharge valve. S500: Start the weighing program, raise the weighing mechanism to detect the weight inside the ton container; if the detected weight of the ton container reaches the calibrated empty weighing value, lower the weighing mechanism, initialize the control system, and wait for the ton container to be removed; if the detected weight inside the ton container is greater than the calibrated empty weighing value, repeat S300 to S400. S600, take away the ton container.

9. A method for connecting ton containers according to claim 8, characterized in that, In step S100, the parameter settings of the control system also include setting the opening time, closing time, and frequency threshold of the electromagnetic pulse valve; in step S300, after the valve opening procedure is stopped, the control system controls the lifting mechanism to raise the air-exploding steel pipe into the ton container; in step S400, after the vibration procedure is started, the air-exploding procedure is started simultaneously, and the electromagnetic pulse valve, according to the set opening time, closing time, and frequency threshold, allows compressed air to enter the ton container in a pulse form through the air-exploding steel pipe; at the same time as the vibration stops, the air-exploding procedure is closed, and the lifting mechanism lowers the air-exploding steel pipe to the initial position.

10. A method for connecting ton containers according to claim 9, characterized in that, In step S200, after the ton container is placed on the receiving frame, the control system controls the locking mechanism to automatically lock the bracket. In step S400, after the discharge valve is closed, the control system controls the locking mechanism to automatically unlock.

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