Movable weighing and turning device

Abstract

The invention discloses a movable weighing and turning device which comprises a movable bearing vehicle, a turning underframe, a turning frame, a turning cylinder and a controller, the movable bearing vehicle comprises a bearing vehicle underframe, a weighing sensor and a turning bearing frame, moving wheels are installed at the bottom of the bearing vehicle underframe, and the bottom of the weighing sensor is fixed to the upper plane of the bearing vehicle underframe; the top of the weighing sensor is fixedly connected with the bottom of the bag turning bearing frame; the overturning bottom frame is fixedly connected to the bag overturning bearing frame; the first end of the turnover frame is pivotally connected to the top of the turnover bottom frame, and a silicon package is fixedly supported on the turnover frame; a cylinder base of the overturning cylinder is installed on the bag overturning bearing frame, the tail end of a piston of the overturning cylinder is connected with the second end of the overturning frame in a pivoted mode, and the second end is opposite to the first end; the weighing sensor transmits weighing data to the controller, the controller calculates the weighing change rate in unit time according to real-time data, and the telescopic speed of the overturning cylinder is adjusted according to the change rate so that the change rate can be kept stable. The efficiency and precision of pouring operation are improved.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical cooling and forming, and particularly relates to a device that can dynamically acquire bag-flipping information and control bag-flipping actions. Background Technology

[0002] Currently, traditional processes for liquid metal casting in the metallurgical industry have the following problems: Low flow control accuracy. Traditional casting uses a fixed tilting device. After the silicon ladle is delivered to the device, the tilting action needs to be manually controlled by a remote control. The pouring flow rate depends entirely on human experience, which easily leads to over-pouring. Even in linear liquid metal forming systems, existing ladle tilting devices adjust the flow rate by controlling the tilting angle. However, because silicon ladles are reused, the size of the pouring opening varies depending on the degree of cleaning of different ladles. The flow rate fluctuates significantly due to the size of the ladle opening, making precise control impossible.

[0003] Therefore, how to dynamically acquire and control the turning of the bale to improve the efficiency and accuracy of the pouring operation is a technical problem that the industry urgently needs to solve. Summary of the Invention

[0004] A primary objective of this invention is to provide a mobile weighing and turning device capable of dynamically acquiring turning information and controlling the turning action, thereby improving the efficiency and accuracy of pouring operations.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: As in one aspect of the present invention, a movable weighing and tipping device is provided for tipping and tilting silicon packages, comprising: A mobile carrier vehicle includes a carrier vehicle chassis, a weighing sensor, and a bag-flipping carrier frame. The bottom of the carrier vehicle chassis is equipped with moving wheels, the bottom of the weighing sensor is fixed to the upper surface of the carrier vehicle chassis, and the top of the weighing sensor is fixedly connected to the bottom of the bag-flipping carrier frame. A flip-up base frame, which is fixedly connected to the flip-up carrying frame; A flip frame, the first end of which is pivotally connected to the top of the flip base frame, and the silicon package is fixedly supported on the flip frame; A tilting cylinder, wherein the cylinder seat of the tilting cylinder is mounted on the tilting support frame, and the piston end of the tilting cylinder is pivotally connected to the second end of the tilting frame, the second end being opposite to the first end; The controller transmits the weighing data from the weighing sensor to the controller. The controller calculates the rate of change of weighing per unit time based on the real-time data and adjusts the extension and retraction speed of the tilting cylinder according to the rate of change to keep the rate of change stable.

[0006] In one embodiment of the present invention, the moving wheel is a track wheel, and the track wheel moves along a first track.

[0007] As in one embodiment of the present invention, the flipping frame includes a support surface, a barrier, and a locking structure. The support surface is used to support the silicon package, the barrier is installed on the upper part of the support surface and located on the side of the silicon package, and the locking structure is used to lock the silicon package on the support surface.

[0008] As in one embodiment of the present invention, the movable weighing and turning device further includes a second track and a movable silicon bag cart, the movable silicon bag cart moving in coordination with the second track, and the silicon bag loaded on the movable silicon bag cart.

[0009] In one embodiment of the present invention, a third track is provided on the bag-turning support frame, and the third track is connected to the second track.

[0010] As in one embodiment of the present invention, the movement directions of the first track and the second track are perpendicular.

[0011] In one embodiment of the present invention, the top bearing surface of the mobile silicon package cart is provided with a telescopic through structure, the silicon package is disposed on the top of the telescopic through structure, and the lower part of the bearing surface has a gap. When the mobile silicon package cart is engaged with the third track, the telescopic through structure passes through the gap, so that the silicon package is placed on the bearing surface. When the telescopic through structure is retracted, the silicon package is fixed to the bearing surface. After being unloaded, the mobile silicon package cart returns to the second track.

[0012] As in one embodiment of the present invention, when the tilting cylinder tilts and pours the molten material in the silicon bag in a controlled manner, the controller includes the following operation steps: initial weight calibration; real-time weight detection and flow rate calculation; and tilting operation control based on weight deviation.

[0013] As in one embodiment of the present invention, the target flow rate for pouring the silicon package is 5 kg / s.

[0014] As in one embodiment of the present invention, the rate of change is controlled within ±0.5 kg / s.

[0015] As can be seen from the above technical solution, the advantages and positive effects of the movable weighing and turning device of the present invention are as follows: The present invention uses a weighing sensor to measure the weight change information of silicon ladles in real time. The controller calculates the weight change rate per unit time based on the measurement information and controls the extension and retraction speed of the tilting cylinder to keep the change rate stable, thereby improving the efficiency and accuracy of the pouring operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 recorded in this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an embodiment of the movable weighing and turning bag device of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a mobile carrier vehicle in one embodiment of the mobile weighing and turning device of the present invention.

[0019] Figure 3 This is a schematic diagram of a portion of the assembly structure in one embodiment of the movable weighing and flipping device of the present invention.

[0020] Figure 4 This is a schematic diagram of the silicon package being positioned in one embodiment of the movable weighing and flipping device of the present invention.

[0021] Figure 5 This is a schematic diagram of the silicon bag tilting process in one embodiment of the movable weighing and turning device of the present invention. Detailed Implementation

[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0023] In the following description of various examples of the invention, reference is made to the accompanying drawings, which form part of the invention, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of the invention. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the invention. Furthermore, while the terms “top,” “bottom,” “front,” “rear,” “side,” etc., may be used in this specification to describe various exemplary features and elements of the invention, these terms are used herein only for convenience, such as the orientation of the examples as shown in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the invention.

[0024] As in one aspect of the invention, a movable weighing and tipping device is provided for tipping and tilting silicon packages 5. Figure 1 As shown, and refer to Figure 2 and Figure 3 As shown, the mobile weighing and overturning device of this embodiment includes a mobile carrier 1, an overturning base 2, an overturning frame 3, an overturning cylinder 4, and a controller (not shown in the figure).

[0025] The mobile carrier 1 includes a carrier chassis 11, a weighing sensor 12, and a bag-flipping carrier frame 13. The carrier chassis 11 is equipped with casters 14 at its bottom. The bottom of the weighing sensor 12 is fixed to the upper surface of the carrier chassis 11, and the top of the weighing sensor 12 is fixedly connected to the bottom of the bag-flipping carrier frame 13.

[0026] The flipping base frame 2 is fixedly connected to the flipping support frame 13. The first end of the flipping frame 3 is pivotally connected to the top of the flipping base frame 2, and the silicon package 5 is fixedly supported on the flipping frame 3. The cylinder seat of the flipping cylinder 4 is mounted on the flipping support frame 13, and the piston end of the flipping cylinder 4 is pivotally connected to the second end of the flipping frame 3, with the second end opposite to the first end.

[0027] In this embodiment, the weighing sensor 12 transmits the weighing data to the controller, which calculates the rate of change of weighing per unit time based on the real-time data and adjusts the extension and retraction speed of the tilting cylinder 4 according to the rate of change to keep the rate of change stable.

[0028] In one embodiment of the present invention, the movable wheel 14 is a track wheel, and the track wheel moves along a first track 81.

[0029] As in one embodiment of the present invention, the flipping frame 3 includes a support surface, a enclosure, and a locking structure. The support surface is used to support the silicon package 5. The enclosure is installed on the upper part of the support surface and located on the side of the silicon package 5. The locking structure is used to lock the silicon package 5 on the support surface.

[0030] As in one embodiment of the present invention, the movable weighing and turning device further includes a second track 82 and a movable silicon bag trolley 7, the movable silicon bag trolley 7 being movable in conjunction with the second track 82, and the silicon bag 5 being loaded on the movable silicon bag trolley 7.

[0031] In one embodiment of the present invention, a third track 83 is provided on the bag-turning support frame 13, and the third track 83 is connected to the second track 82. In another embodiment of the present invention, the movement directions of the first track 81 and the second track 82 are perpendicular.

[0032] As in one embodiment of the present invention, reference is made to... Figure 4 and Figure 5 As shown. The top bearing surface of the mobile silicon package trolley 7 is provided with a telescopic through-structure 6. The silicon package 5 is disposed on the top of the telescopic through-structure 6. There is a gap in the lower part of the bearing surface. When the mobile silicon package trolley 7 is engaged with the third track 83, the telescopic through-structure 6 passes through the gap, so that the silicon package 5 is placed on the bearing surface. When the telescopic through-structure 6 is retracted, the silicon package is fixed to the bearing surface. After being unloaded, the mobile silicon package trolley 7 returns to the second track 82.

[0033] In one embodiment of the present invention, when the tilting cylinder 4 is tilting and pouring the molten material in the silicon package 5 in a controlled manner, the controller includes the following operating steps: initial weight calibration; real-time weight detection and flow rate calculation; and tilting operation control based on weight deviation. In one embodiment of the present invention, the target flow rate for pouring the silicon package 5 is 5 kg / s. In one embodiment of the present invention, the rate of change is controlled within ±0.5 kg / s.

[0034] As can be seen from the above technical solution, the advantages and positive effects of the movable weighing and turning device of the present invention are as follows: The weighing sensor 12 of this invention measures the weight change information of the silicon package 5 in real time. The controller calculates the weight change rate per unit time based on the measurement information and controls the extension and retraction speed of the tilting cylinder 4 to keep the change rate stable, thereby improving the efficiency and accuracy of the pouring operation.

[0035] In this embodiment, such as Figure 1 As shown, after the silicon bag 5 is filled with molten material, it is hoisted onto the mobile silicon bag trolley 7. The mobile silicon bag trolley 7 is installed on the second track 82, which is a power supply track. The mobile silicon bag trolley 7 can move back and forth along the second track 82.

[0036] like Figure 2 As shown, the bag-flipping support frame 13 is connected to the support vehicle base frame 11 via a weighing sensor 12. The bottom of the weighing sensor 12 is fixed to the upper plane of the support vehicle base frame 11 by bolts, and the upper part of the weighing sensor 12 is fixed to the bottom of the bag-flipping support frame 13 by bolts. The flipping base frame 2 is fixed to the bag-flipping support frame 13 by welding. The moving wheel 14 is installed on the support vehicle base frame 11 by bolts, and the moving wheel 14 moves left and right along the first track 81.

[0037] like Figure 3 As shown, the mobile carrier 1 is installed on the first track 81 and can move forward or backward along the first track 81. The tilting base frame 2 is installed on the mobile carrier 1 by welding. The tilting frame 3 is connected to the tilting base frame 2 by the tilting pin 31 and can rotate around the axis along the tilting base frame 2. One end of the tilting cylinder 4 is connected to the mobile carrier 1 by the hydraulic cylinder pin 41, and the other end is connected to the tilting frame 3 by the hydraulic cylinder pin.

[0038] like Figure 4 and Figure 5 As shown, after the silicon bag 5 is filled with molten material, it is moved by the moving silicon bag cart 7 into the U-shaped groove of the tilting frame 3, so that the lugs on both sides of the silicon bag 5 are engaged and fixed. At this time, the controller starts the tilting cylinder 4, which slowly extends and pushes the tilting frame 3 to rotate around the tilting pin 31. The silicon bag 5 changes from a vertical state to an inclined state with the tilting frame 3. At this time, the moving silicon bag cart 7 is moved from the third track 83 back to the second track 82. The controller starts the tilting cylinder 4 again, which continues to slowly extend, and the molten material flows out from the bag nozzle. During this process, the weighing sensor 12 detects the overall weight in real time and feeds it back to the controller. The controller adjusts the extension speed of the tilting cylinder 4 according to the weight change, and controls the constant flow of material into the ingot mold or molding equipment.

[0039] The weight-adjustable flow rate function achieves a constant flow rate of molten material through a closed-loop process of "real-time weighing → data calculation → dynamic cylinder control". The specific steps are as follows: 1. Initial weight calibration Once the silicon bag 5 is filled with molten material and placed in the U-shaped groove of the tilting frame 4 (the gap between the U-shaped groove and the silicon bag shaft lug is ≤15mm to ensure that the silicon bag is fixed and does not shake), the moving silicon bag cart 7 exits. The controller first reads the initial total weight W0 of the four weighing sensors. This weight includes "the weight of the device itself (tilting support frame 13 + tilting base frame 2 + tilting frame 3 + tilting cylinder 4) + weight of silicon bag 5 + weight of molten material"; At the same time, the target flow rate Q (unit: kg / s, set according to the mold specifications or molding system requirements, for example Q=5kg / s) required for this pouring is determined by the system preset, and the theoretical weight reduction ΔW=Q per unit time is calculated (because the density of the molten material is stable, the flow rate is proportional to the weight reduction rate).

[0040] 2. Real-time weight detection and flow calculation After the pouring begins, the tilting cylinder 4 slowly extends, causing the tilting frame 3 and the silicon bag 5 to tilt, and the molten material flows out from the bag nozzle; during this process, the controller collects the weight data of the four weighing sensors 12 in real time at a frequency of 100ms / time, and calculates the real-time total weight Wt.

[0041] The controller calculates the actual weight reduction per unit time ΔWt = (Wt-1-Wt) / Δt (where Δt is the time interval between the two collections, i.e., 0.1s) based on the weight data collected twice consecutively. Then, it calculates the actual pouring flow rate Qt = ΔWt based on ΔWt (since Δt = 0.1s, Qt = ΔWt × 10, unit: kg / s).

[0042] 3. Hydraulic cylinder control based on weight deviation The controller compares the actual flow rate Qt with the target flow rate Q and calculates the flow deviation ΔQ = Qt - Q: When ΔQ>0, that is, when the actual flow rate is greater than the target flow rate, the controller outputs a signal to control the extension speed of the tilting cylinder 4 to decrease. The extension speed of the tilting cylinder 4 decreases from the initial 10mm / s to 8mm / s. The specific reduction is dynamically adjusted according to the deviation, so that the tilting angle of the silicon package 5 increases and the rate of increase slows down, and the material outflow speed decreases until Qt approaches Q. When ΔQ<0, i.e. the actual flow rate is less than the target flow rate, the system controls the extension speed of the tilting cylinder to increase, the tilt angle of silicon package 5 to increase at a faster rate, and the material outflow speed to increase until Qt is consistent with Q. When ΔQ=0, i.e., the actual flow rate equals the target flow rate, the system maintains the current extension speed of the tilting cylinder 4 to maintain stable pouring.

[0043] 4. Weight compensation control in special scenarios Material Residue Compensation: When the amount of material remaining in silicon package 5 is small (Wt - W_empty ≤ 50kg, where W_empty is the preset value of "the weight of the device itself + the weight of the empty silicon package"), the material outflow rate will slow down due to the decrease in liquid level. The system will dynamically increase the extension speed of the hydraulic cylinder according to the remaining weight to ensure that the actual flow rate remains within the range of ±0.5kg / s until the material is basically poured out (Wt approaches W_empty).

[0044] This embodiment boasts high flow control precision: high-precision weighing sensors 12 distributed at the four corners detect weight changes in real time, and the control system dynamically adjusts the extension and retraction speed of the tilting cylinder 4. Unaffected by differences in the opening size of the silicon ladle 5, it can stably achieve a constant flow rate of molten material, avoiding excessive dumping or flow fluctuations. Furthermore, this embodiment exhibits strong operational stability: the tilting frame 3 engages with the shaft lugs of the silicon ladle 5 via a U-shaped groove, ensuring the silicon ladle 5 remains firmly fixed during tilting; the shell-breaking device addresses the risk of shell formation, preventing equipment damage and ensuring continuous and stable operation.

[0045] Those skilled in the art should understand that the specific structures and processes shown in the above detailed embodiments are merely exemplary and not restrictive. Furthermore, those skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions or make other modifications, all of which fall within the scope of this invention.

Claims

1. A mobile type weighing and tipping device for performing a tipping operation on a silicon bag, characterized in that, The mobile bearing vehicle comprises a bearing vehicle chassis, a weighing sensor and a bag bearing frame, the bottom of the bearing vehicle chassis is provided with mobile wheels, the bottom of the weighing sensor is fixed on the upper plane of the bearing vehicle chassis, and the top of the weighing sensor is fixedly connected with the bottom of the bag bearing frame. The turnover chassis is fixedly connected to the bag bearing frame. The turnover frame is pivotally connected to the top of the turnover chassis at the first end, and the silicon bag is fixedly supported on the turnover frame. The turnover cylinder is installed on the bag bearing frame, and the piston end of the turnover cylinder is pivotally connected to the second end of the turnover frame opposite to the first end. The weighing sensor transmits weighing data to the controller, the controller calculates the weighing change rate per unit time according to real-time data, adjusts the extension and retraction speed of the turnover cylinder according to the change rate, so that the change rate remains stable. The mobile wheels are track wheels, which move along a first track.

2. The mobile weigh and transfer apparatus of claim 1, wherein: The turnover frame comprises a support surface, an enclosure and a locking structure, the support surface is used for supporting the silicon bag, the enclosure is installed on the upper part of the support surface and located on the side of the silicon bag, and the locking structure is used for locking the silicon bag on the support surface.

3. The mobile weigh and transfer apparatus of claim 2, wherein: The movable weighing bag turnover device further comprises a second track and a mobile silicon bag vehicle, the mobile silicon bag vehicle moves along the second track, and the silicon bag is loaded on the mobile silicon bag vehicle.

4. The mobile weigh and transfer apparatus of claim 3, wherein: The bag bearing frame is provided with a third track, and the third track is connected with the second track.

5. The mobile weigh and transfer apparatus of claim 4, wherein: The moving directions of the first track and the second track are perpendicular.

6. The mobile weigh and transfer apparatus of claim 5, wherein: The top bearing surface of the mobile silicon bag vehicle is provided with a telescopic passing structure, the silicon bag is arranged on the top of the telescopic passing structure, the lower part of the bearing surface has a gap, and when the mobile silicon bag vehicle is connected to the third track, the telescopic passing structure passes through the gap, so that the silicon bag is placed on the bearing surface, and when the telescopic passing structure is retracted, the silicon bag is fixed to the bearing surface, and the mobile silicon bag vehicle is returned to the second track after being unloaded.

7. The mobile weigh and transfer apparatus of claim 5, wherein: When the turnover cylinder is controlled to overturn and pour the molten material in the silicon bag, the controller comprises the following operation steps: initial weight calibration, real-time weight detection and flow calculation, and turnover operation control based on weight deviation.

8. The portable weigh and transfer package apparatus of any of claims 1-7, wherein: The target flow of the silicon bag pouring is 5 kg / s.

9. The portable weigh and transfer apparatus of claim 8, wherein: The change rate is controlled within ±0.5 kg / s.

10. The mobile weigh and transfer apparatus of claim 9, wherein: ​

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