A gunpowder weighing device with multiple weighing function

Abstract

The present invention discloses a gunpowder weighing device with a re-weighing function, comprising: a supporting device, the supporting device is provided with an initial weighing area and a re-weighing area; a feeding device, used for adding gunpowder; a transmission device, the transmission device is provided with a gunpowder cup, the gunpowder cup is used to receive the gunpowder discharged by the feeding device in the initial weighing area, the transmission device drives the gunpowder cup to be transported from the initial weighing area to the re-weighing area, so as to weigh the gunpowder cup loaded with gunpowder multiple times; an electrostatic eliminator, so as to eliminate the static electricity of the gunpowder in the gunpowder cup that is initially weighed and / or re-weighed. The invention can reduce the influence of static electricity on gunpowder weighing and improve the accuracy of gunpowder weighing. The present invention is applied to the field of gunpowder and explosive weighing equipment.

Description

Technical Field

[0001] The invention relates to the field of explosive weighing equipment, in particular to an explosive weighing device with a multiple weighing function. Background Art

[0002] Gunpowder is in powder form. During its transportation and production, it is easy to rub against other equipment and generate static electricity, which makes the gunpowder carry static electricity. For example, in the weighing process of gunpowder, nowadays, most of the gunpowder is weighed by automatic gunpowder weighing devices. However, during weighing, the gunpowder will rub against the contact part of the weighing device, which can be the wall of the feed hopper, the wall of the transmission pipeline, etc. During the transportation process, the gunpowder rubs against the wall of the hopper or the wall of the pipeline, which then generates static electricity, which makes the gunpowder carry static electricity during weighing.

[0003] Gunpowder weighing requires high precision, which needs to reach milligrams. However, when the weighing machine is affected by static electricity, its weighing precision will change, which will eventually lead to inaccurate measurement results and affect the weighing results of gunpowder. Moreover, after weighing gunpowder many times, the weighing machine for gunpowder may malfunction, causing its precision to change, and finally obtaining defective products that are shown to have met the standards but actually have not met the standards. However, when the weighing machine fails, it is difficult for the production line staff to directly detect it, resulting in the production line continuing to produce defective products, which seriously affects production quality. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a gunpowder weighing device with a multiple weighing function, which can reduce the influence of static electricity on gunpowder weighing and improve the accuracy of gunpowder weighing.

[0005] According to an embodiment of the present invention, a gunpowder weighing device with a re-weighing function comprises: a supporting device, wherein the supporting device is provided with an initial weighing area and a re-weighing area; a feeding device for adding gunpowder; a transmission device, wherein a gunpowder cup is provided on the transmission device, and the gunpowder cup is used to receive the gunpowder discharged by the feeding device in the initial weighing area, and the transmission device drives the gunpowder cup to be transferred from the initial weighing area to the re-weighing area, so as to weigh the gunpowder cup loaded with gunpowder multiple times.

[0006] The gunpowder weighing device with a multiple weighing function according to the embodiment of the present invention has at least the following beneficial effects:

[0007] 1. In the re-weighing area, the gunpowder after the initial weighing is measured twice or multiple times to reduce the error of gunpowder weighing and improve the accuracy of gunpowder weighing;

[0008] 2. At the same time, the weighing results of the re-weighing area can be compared with the weighing results of the initial weighing area to better monitor whether the weighing machine in the initial weighing area is operating normally, and can accurately measure the actual weight of the gunpowder after eliminating static electricity to ensure the accuracy of the weighing results and improve production quality.

[0009] According to some embodiments of the present invention, a static electricity elimination device is further included to eliminate static electricity of the gunpowder in the gunpowder cup that is initially weighed and / or re-weighed.

[0010] According to some embodiments of the present invention, the static eliminator comprises at least one of a stirring device and a feeding pipe:

[0011] The stirring device is arranged between the initial weighing area and the re-weighing area, and includes a stirring part and a lifting device. The stirring part is transmission-connected with the lifting device, and extends into or out of the gunpowder cup under the drive of the lifting device. The stirring part is used to stir the gunpowder in the gunpowder cup to generate an electric charge opposite to the charge carried by the gunpowder.

[0012] The feeding device is connected to the outlet of the feeding pipe. When the gunpowder passes through the feeding pipe, it rubs against the feeding pipe to generate an electric charge opposite to the electric charge carried by the gunpowder, so as to eliminate the static electricity of the gunpowder.

[0013] According to some embodiments of the present invention, the feeding device includes a coarse feeding structure and a fine feeding structure, wherein the coarse feeding structure is used to roughly add gunpowder into the gunpowder cup, and the fine feeding structure is used to accurately add gunpowder into the gunpowder cup.

[0014] According to some embodiments of the present invention, it also includes a first shock absorbing device and a second shock absorbing device, the first shock absorbing device is arranged between the initial weighing area and the re-weighing area and the supporting device, the supporting device is provided with two oppositely arranged mounting surfaces and shock absorbing surfaces, the initial weighing area is installed on the mounting surface, and the second shock absorbing device is installed on the shock absorbing surface.

[0015] According to some embodiments of the present invention, both the first shock absorbing device and the second shock absorbing device are rubber pads.

[0016] According to some embodiments of the present invention, the transmission device includes a rotating table and a rotating drive device, the rotating table is provided with a plurality of evenly distributed first mounting positions for placing the powder cup, the rotating table is transmission-connected to the rotating drive device to drive the first mounting position to rotate from the initial weighing area to the re-weighing area.

[0017] According to some embodiments of the present invention, the transmission device includes a conveyor belt, a driving wheel, a driven wheel and a transmission drive device. The conveyor belt is provided with a plurality of second installation positions for placing the gunpowder cups. The driving wheel and the driven wheel are respectively arranged at both ends of the conveyor belt and are transmission-connected to the conveyor belt. The driving wheel is transmission-connected to the transmission drive device to drive the second installation position to move from the initial weighing area to the re-weighing area.

[0018] According to some embodiments of the present invention, the transmission device is a robot arm, and the robot arm can clamp the gunpowder cup to move the gunpowder cup from the initial weighing area to the re-weighing area.

[0019] According to some embodiments of the present invention, a plurality of reweighing stations are provided in the reweighing area.

[0020] According to some embodiments of the present invention, the rough feeding structure includes a rough feeding pipe and a rough feeding bin, the rough feeding bin is connected with the gunpowder cup through the rough feeding pipe, and a first perforated draw plate, a rough feeding adjustment rod and a second perforated draw plate are sequentially arranged on the rough feeding pipe, and all three are slidably arranged along the radial direction of the rough feeding pipe, the first perforated draw plate and the second perforated draw plate are used to open or close the rough feeding pipe, and the rough feeding adjustment rod is used to adjust the gunpowder flow in the rough feeding pipe.

[0021] According to some embodiments of the present invention, the fine material discharge structure includes a rotating tube, a rotating drive device and a discharge bin, the rotating tube includes a feed end and a discharge end, the feed end is connected to the discharge bin, the discharge end is used to add gunpowder to the gunpowder cup, and the rotating drive device is transmission-connected to the rotating tube to drive the rotating tube to rotate.

[0022] According to some embodiments of the present invention, it also includes an axis-swinging device, which is transmission-connected to the rotating tube, and the swinging end of the axis-swinging device corresponds to the feed end, and the axis-swinging end corresponds to the discharge end, so as to raise or lower the feed end of the rotating tube relative to the discharge end of the rotating tube.

[0023] According to some embodiments of the present invention, the axial swinging device includes a fixed plate, a movable plate and a swinging driving device, one side of the movable plate is hinged to the fixed plate, and the other side of the movable plate is transmission-connected to the swinging driving device. The movable plate rotates around its hinged side under the drive of the swinging driving device, and the rotating tube is arranged on the movable plate.

[0024] According to some embodiments of the present invention, an anti-sticking coating is provided on the inner wall of the rotating tube.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 It is a schematic diagram of a gunpowder weighing device with a multiple weighing function according to an embodiment of the present invention;

[0028] Figure 2 It is a cross-sectional schematic diagram of a gunpowder weighing device with a multiple weighing function according to an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of a static eliminator of a gunpowder weighing device with a re-weighing function according to an embodiment of the present invention;

[0030] Figure 4 The schematic diagram of the rough material feeding structure of the gunpowder weighing device with a multiple weighing function according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] 100-support device; 110-initial weighing area; 120-re-weighing area;

[0033] 200-feeding device; 210-rotating pipe; 220-rotation driving device; 230-axis swinging device; 240-feeding bin; 250-roughing pipe; 251-first perforated pumping plate; 252-roughing adjustment rod; 253-second perforated pumping plate; 260-roughing bin;

[0034] 300-transmission structure; 310-gunpowder cup;

[0035] 400 - static electricity elimination device; 410 - stirring device; 411 - stirring part; 412 - lifting device. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] Reference Figure 1 , Figure 2 and Figure 3 In some specific embodiments of the present invention, the gunpowder weighing device with a multiple weighing function includes:

[0042] A supporting device 100, wherein the supporting device 100 is provided with an initial weighing area 110 and a re-weighing area 120;

[0043] A feeding device 200, for adding gunpowder;

[0044] The transmission device 300 is provided with a gunpowder cup 310, and the gunpowder cup 310 is used to receive the gunpowder discharged by the unloading device 200 in the initial weighing area 110. The transmission device 300 drives the gunpowder cup 310 to be transferred from the initial weighing area 110 to the re-weighing area 120, so as to weigh the gunpowder cup 310 loaded with gunpowder multiple times.

[0045] Specifically, the gunpowder cup 310 is moved to the bottom of the unloading device 200 through the transmission device 300, and the unloading device 200 adds gunpowder into the gunpowder cup 310 according to a certain amount. The weighing machine in the initial weighing area 110 confirms the weight of the gunpowder in the gunpowder cup. When the specified amount is reached, the addition of gunpowder is stopped, and the gunpowder cup 310 is transferred to the re-weighing area 120 through the transmission device 300, and the mass of the gunpowder is further weighed to reduce the weighing error.

[0046] The re-weighing area 120 can measure the gunpowder after the initial weighing for a second time or multiple times to reduce the error in gunpowder weighing, and at the same time compare the weighing results of the initial weighing area 110. When the results differ greatly, it can be determined that a weighing machine in the initial weighing area 110 or the re-weighing area 120 has a fault and needs to be inspected and repaired, thereby monitoring whether the weighing machines in the initial weighing area 110 or the re-weighing area 120 are operating normally, ensuring the accuracy of the results after gunpowder weighing, and improving production quality.

[0047] Reference Figure 1 and Figure 3 In some specific embodiments of the present invention, a static elimination device 400 is also included to eliminate static electricity from the gunpowder in the gunpowder cup 310 that is initially weighed and / or re-weighed.

[0048] Specifically, after the static electricity of the gunpowder in the gunpowder cup 310 is eliminated by the static electricity elimination device 400, the weighing result can be made more accurate. Since the static electricity elimination device 400 can eliminate the static electricity of the gunpowder in the gunpowder cup 310 before the initial weighing or eliminate the static electricity of the gunpowder in the gunpowder cup 310 after the initial weighing, it is divided into the following two cases:

[0049] 1. When the gunpowder is de-staticized by the static eliminator 400 during the initial weighing, the weighing results of the initial weighing area 110 and the re-weighing area 120 are free from the interference of static electricity, and the measurement is more accurate. The re-weighing can detect the initial weighing, and the failure of the initial weighing can be discovered in time, thereby improving the production quality.

[0050] 2. When the static electricity of the gunpowder in the gunpowder cup 310 is removed by the static electricity eliminator 400 during reweighing, the gunpowder with static electricity eliminated is measured by reweighing to obtain the accurate weight of the gunpowder after static electricity elimination, and then it can be accurately judged whether the actual weight of the gunpowder meets the standard to improve the quality of the product.

[0051] The static eliminator 400 can discharge the static electricity in the gunpowder by grounding, or neutralize the static electricity in the gunpowder by using a material with metal dissimilarities. The metal dissimilar material refers to a material that generates two completely opposite charges when rubbed with the gunpowder, so as to eliminate the static electricity. The initial weighing area 110 and the re-weighing area 120 are both provided with a weighing machine, and the gunpowder in the gunpowder cup 310 is weighed by the weighing machine to obtain the weight of the gunpowder. The weighing machine can use the same model of weighing machine, and the weighing machine belongs to the conventional technical means in this field, which will not be described in detail here.

[0052] In addition, the materials with metal dissimilarities can be selected according to the material electrostatic sequence. The material electrostatic sequence refers to the sequence of various substances according to the polarity of static electricity generated when two substances come into contact with each other. According to this sequence, when the front and back two substances come into contact, the former is positively charged and the latter is negatively charged. This can be explained by the different work functions of various substances or the different polar groups of substances. In actual use, the materials with metal dissimilarities can be selected according to this material electrostatic sequence.

[0053] Reference Figure 1 and Figure 3 In some specific embodiments of the present invention, the static eliminator 400 includes at least one of a stirring device and a feeding pipe:

[0054] The stirring device is arranged between the initial weighing area 110 and the re-weighing area 120, and includes a stirring portion 411 and a lifting device 412. The stirring portion 411 is transmission-connected to the lifting device 412, and extends into or out of the gunpowder cup 310 under the drive of the lifting device 412. The stirring portion 411 is used to stir the gunpowder in the gunpowder cup 310 to generate an electric charge opposite to the electric charge carried by the gunpowder.

[0055] The feeding device 200 is connected to the outlet of the feeding pipe. When the gunpowder passes through the feeding pipe, it rubs against the feeding pipe to generate a charge opposite to the charge carried by the gunpowder, so as to eliminate the static electricity of the gunpowder.

[0056] Taking the stirring device as an example, during the process of gunpowder feeding, the gunpowder and the feeding device 200 rub against each other and generate static electricity. This static electricity can be positively charged static electricity or negatively charged static electricity. The stirring part 411 can be made of a material that rubs against the gunpowder to generate a charge opposite to the charge carried by the gunpowder, or a coating is provided on the surface of the stirring part 411, and the coating can rub against the gunpowder to generate a charge opposite to the charge carried by the gunpowder.

[0057] After the initial weighing of the gunpowder with static electricity, the gunpowder without static electricity is weighed again to accurately measure the weight of the gunpowder, so that the weighing result of the gunpowder is more accurate. When the weighing result of the repeated weighing meets the standard, the gunpowder weighed this time is qualified. When it does not meet the standard, it is unqualified. The unqualified products will be poured back into the feeding device 200 and fed again.

[0058] Taking the feeding tube as an example, during the process of gunpowder feeding, the gunpowder and the feeding device 200 rub against each other and generate static electricity, which can be positively charged static electricity or negatively charged static electricity. When the gunpowder passes through the feeding tube, the gunpowder and the feeding tube rub against each other and generate a charge opposite to the charge carried by the gunpowder, so as to achieve static neutralization. The feeding tube can be made of a material that rubs against the gunpowder to generate a charge opposite to the charge carried by the gunpowder, or an A coating is provided on the contact surface with the gunpowder, and the A coating can rub against the gunpowder to generate a charge opposite to the charge carried by the gunpowder.

[0059] Taking the example of the stirring device and the feeding pipe being arranged together, when the feeding pipe is not sufficient to completely eliminate the static electricity generated by the friction between the gunpowder and the feeding device 200, the stirring device can be used for supplementary elimination to completely remove the static electricity in the gunpowder.

[0060] By generating an electric charge opposite to the static charge of the gunpowder, the static electricity generated during the gunpowder weighing process is neutralized, and uncharged gunpowder is obtained, thereby reducing the possibility of explosion of the gunpowder, making the gunpowder safer in the subsequent production and storage process, and the measurement results are more accurate, thereby improving product quality.

[0061] In some specific embodiments of the present invention, a first shock absorbing device and a second shock absorbing device are further included. The first shock absorbing device is arranged between the initial weighing area 110 and the re-weighing area 120 and the supporting device 100. The supporting device 100 is provided with two oppositely arranged mounting surfaces and shock absorbing surfaces. The initial weighing area 110 is installed on the mounting surface, and the second shock absorbing device is installed on the shock absorbing surface.

[0062] Specifically, the first shock absorbing device is provided to isolate the initial weighing area 110 and the re-weighing area 120 from the supporting device 100, so as to reduce the influence of vibration of the unloading device or other devices during operation on the weighing, and further improve the weighing accuracy.

[0063] The second shock absorbing device is arranged on the shock absorbing surface to reduce the influence of the vibration of the gunpowder weighing device with the re-weighing function on the weighing, thereby further improving the weighing accuracy.

[0064] In some specific embodiments of the present invention, the first shock absorbing device and the second shock absorbing device are both rubber pads. The rubber pads are low in cost and have good shock absorbing performance.

[0065] In some specific embodiments of the present invention, the transmission device 300 includes a rotating table and a rotating drive device. The rotating table is provided with a plurality of evenly distributed first installation positions for placing the gunpowder cup 310. The rotating table is transmission-connected to the rotating drive device to drive the first installation position to rotate from the initial weighing area 110 to the re-weighing area 120.

[0066] Specifically, the powder cup 310 on the first installation position is rotated from the initial weighing area 110 to the re-weighing area 120 by rotating the rotating table, and the transfer of the powder cup 310 is completed. Compared with the transfer by conveyor belt, the transfer by rotation saves more space and has a higher space utilization rate.

[0067] In some specific embodiments of the present invention, the transmission device 300 includes a conveyor belt, a driving wheel, a driven wheel and a transmission drive device. The conveyor belt is provided with a plurality of second installation positions for placing the gunpowder cup 310. The driving wheel and the driven wheel are respectively arranged at both ends of the conveyor belt and are transmission-connected to the conveyor belt. The driving wheel is transmission-connected to the transmission drive device to drive the second installation position to move from the initial weighing area 110 to the re-weighing area 120.

[0068] Specifically, the powder cup 310 is transferred by a transmission belt, and the structure is simple.

[0069] In some specific embodiments of the present invention, the transfer device 300 is a robot arm, which can clamp the gunpowder cup 310 to move the gunpowder cup 310 from the initial weighing area 110 to the re-weighing area 120 .

[0070] Specifically, the powder cup 310 is directly clamped by a manipulator for transfer, which makes it more convenient to transfer the powder cup 310 to the next workstation after the weighing is completed, thereby improving efficiency.

[0071] In some specific embodiments of the present invention, a plurality of reweighing stations are provided in the reweighing area 120 .

[0072] Specifically, the powder cup 310 is weighed through a plurality of re-weighing stations, so that the re-weighing result is more accurate.

[0073] Reference Figure 1 , Figure 2 and Figure 4 In some specific embodiments of the present invention, the feeding device 200 includes a coarse feeding structure and a fine feeding structure. The coarse feeding structure is used to roughly add gunpowder to the gunpowder cup 310, and the fine feeding structure is used to accurately add gunpowder to the gunpowder cup 310.

[0074] Specifically, the coarse feeding structure can add gunpowder to the gunpowder cup 310 relatively quickly, but the adding precision is not enough and defective products are prone to occur, while the fine feeding structure adds gunpowder relatively slowly but with high adding precision. The coarse feeding structure adds gunpowder to the gunpowder cup 310 to a weight close to the target value, and then the fine feeding structure adds gunpowder to the target value, so that the gunpowder can be added relatively quickly and accurately.

[0075] Reference Figure 1 , Figure 2 and Figure 4In some specific embodiments of the present invention, the rough feeding structure includes a rough feeding pipe 250 and a rough feeding bin 260. The rough feeding bin 260 is connected to the gunpowder cup 310 through the rough feeding pipe 250. The first perforated pumping plate 251, the rough feeding adjustment rod 252 and the second perforated pumping plate 253 are sequentially arranged on the rough feeding pipe 250, and all three are slidably arranged along the radial direction of the rough feeding pipe 250. The first perforated pumping plate 251 and the second perforated pumping plate 253 are used to open or close the rough feeding pipe 250, and the rough feeding adjustment rod 252 is used to adjust the gunpowder flow in the rough feeding pipe 250.

[0076] The specific working process is as follows: a first perforated pumping plate 251 and a second perforated pumping plate 253 are arranged in the rough feeding pipe 250. The gunpowder must pass through the holes on the first perforated pumping plate 251 and the second perforated pumping plate 253 to enter the gunpowder cup 310 through the rough feeding pipe 250, so the gunpowder can be added to the gunpowder cup 310 at a certain flow rate at a faster speed. When the target value of the rough feeding structure is approaching, the rough feeding adjustment rod 252 located between the first perforated pumping plate 251 and the second perforated pumping plate 253 is extended to reduce the flow rate of the gunpowder in the pipe. When the target value of the rough feeding structure is reached, the rough feeding structure is closed. In the process of reducing the flow rate of the gunpowder in the pipe, errors are prone to occur, resulting in inaccurate addition results.

[0077] Reference Figure 1 and Figure 2 In some specific embodiments of the present invention, the fine material discharge structure includes a rotating tube 210, a rotating drive device 220 and a discharge bin 240. The rotating tube 210 includes a feed end and a discharge end. The feed end is connected to the discharge bin 240, and the discharge end is used to add gunpowder to the gunpowder cup 310. The rotating drive device 220 is transmission-connected to the rotating tube 210 to drive the rotating tube 210 to rotate.

[0078] Specifically, after the rough feeding structure completes the feeding, the fine feeding structure adds gunpowder to the gunpowder cup 310, and the gunpowder in the feeding bin 240 enters the rotating tube 210. The rotating tube 210 rotates around its own axial direction to move the gunpowder from the feeding end to the discharging end, and slowly adds it to the gunpowder cup 310 in the initial weighing area 110. It can add gunpowder in small amounts and quantitatively to achieve accurate addition of gunpowder until the target value is reached and the fine feeding is completed.

[0079] Reference Figure 1 and Figure 2 In some specific embodiments of the present invention, an axial swinging device 230 is further included. The axial swinging device 230 is transmission-connected to the rotating tube 210, and the swinging end of the axial swinging device 230 corresponds to the feeding end, and the axial end corresponds to the discharging end, so as to raise or lower the feeding end of the rotating tube 210 relative to the discharging end of the rotating tube 210.

[0080] Specifically, by lifting the swinging end of the axial swinging device 230, the rotating tube 210 is in an inclined state, so that the gunpowder in the rotating tube 210 can move faster from the feeding end to the discharging end, thereby improving the adding efficiency of gunpowder during the fine feeding process, and by lowering the swinging end of the axial swinging device 230, the feeding can be quickly stopped, and the control is more convenient.

[0081] Reference Figure 1 and Figure 2 In some specific embodiments of the present invention, the axial swinging device 230 includes a fixed plate, a movable plate and a swinging driving device. One side of the movable plate is hinged to the fixed plate, and the other side of the movable plate is transmission-connected to the swinging driving device. The movable plate rotates around its hinged side under the drive of the swinging driving device, and the rotating tube 210 is arranged on the movable plate.

[0082] Specifically, the swing drive device drives the movable plate to rotate around the fixed plate, so that the rotating tube 210 on the movable plate is tilted, and then the gunpowder in the rotating tube 210 slowly enters the gunpowder cup 310 under the action of gravity, which can better achieve the precise feeding of gunpowder. Figure 2 The swing drive device can be a screw drive structure.

[0083] In some specific embodiments of the present invention, an anti-sticking coating is provided on the inner wall of the rotating tube 210 .

[0084] Specifically, by providing an anti-adhesion coating, the transfer tube 210 is more convenient when transferring gunpowder, and the gunpowder is not easy to adhere to the side wall of the transfer tube 210, so that the gunpowder can be better discharged.

[0085] In addition, the anti-adhesion coating can be arranged on the inner wall of the rotating tube 210 at intervals from the A coating, so that the rotating tube 210 has both anti-adhesion and anti-static functions, making it more convenient to use.

[0086] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A gunpowder weighing device with a multiple weighing function, characterized in that: include: A supporting device (100), wherein the supporting device (100) is provided with an initial weighing area (110) and a re-weighing area (120); A feeding device (200) for adding gunpowder; A transmission device (300), wherein a gunpowder cup (310) is provided on the transmission device (300), and the gunpowder cup (310) is used to receive the gunpowder discharged by the unloading device (200) in the initial weighing area (110). The transmission device (300) drives the gunpowder cup (310) to be transported from the initial weighing area (110) to the re-weighing area (120) so as to weigh the gunpowder cup (310) loaded with gunpowder multiple times; It also includes a static electricity elimination device (400) to eliminate static electricity from the gunpowder in the gunpowder cup (310) that is initially weighed and / or reweighed; The static eliminator (400) comprises at least one of a stirring device and a feeding pipe: The stirring device is arranged between the initial weighing area (110) and the re-weighing area (120), and comprises a stirring portion (411) and a lifting device (412). The stirring portion (411) is transmission-connected to the lifting device (412) and extends into or out of the gunpowder cup (310) under the drive of the lifting device (412). The stirring portion (411) is used to stir the gunpowder in the gunpowder cup (310) to generate an electric charge opposite to the electric charge carried by the gunpowder. The feeding device (200) is connected to the outlet of the feeding pipe. When the gunpowder passes through the feeding pipe, it rubs against the feeding pipe to generate an electric charge opposite to the electric charge carried by the gunpowder, thereby eliminating the static electricity of the gunpowder.

2. The gunpowder weighing device with a multiple weighing function according to claim 1, characterized in that: The support device (100) is provided with a mounting surface and a support surface that are arranged opposite to each other, the initial weighing area (110) is installed on the mounting surface, a first shock absorbing device is provided between the initial weighing area (110) and the support device (100) and between the re-weighing area (120) and the support device (100), and the support surface is provided with a second shock absorbing device.

3. The gunpowder weighing device with a multiple weighing function according to claim 2, characterized in that: The first shock absorbing device and the second shock absorbing device are both rubber pads.

4. The gunpowder weighing device with a multiple weighing function according to claim 1, characterized in that: The transmission device (300) comprises a rotating table and a rotating drive device. The rotating table is provided with a plurality of evenly distributed first installation positions for placing the gunpowder cups (310). The rotating table is transmission-connected to the rotating drive device to drive the first installation positions to rotate from the initial weighing area (110) to the re-weighing area (120).

5. The gunpowder weighing device with a multiple weighing function according to claim 1, characterized in that: The transmission device (300) comprises a conveyor belt, a driving wheel, a driven wheel and a transmission drive device. The conveyor belt is provided with a plurality of second installation positions for placing the gunpowder cup (310). The driving wheel and the driven wheel are respectively arranged at two ends of the conveyor belt and are drivingly connected to the conveyor belt. The driving wheel is drivingly connected to the transmission drive device to drive the second installation position to move from the initial weighing area (110) to the re-weighing area (120).

6. The gunpowder weighing device with a multiple weighing function according to claim 1, characterized in that: The transmission device (300) is a manipulator, and the manipulator can clamp the gunpowder cup (310) to move the gunpowder cup (310) from the initial weighing area (110) to the re-weighing area (120).

7. The gunpowder weighing device with a multiple weighing function according to any one of claims 1 to 6, characterized in that: A plurality of reweighing stations are provided in the reweighing area (120).

8. The gunpowder weighing device with a multiple weighing function according to any one of claims 1 to 6, characterized in that: The feeding device (200) comprises a rough feeding structure and a fine feeding structure, wherein the rough feeding structure is used to roughly add gunpowder into the gunpowder cup (310), and the fine feeding structure is used to accurately add gunpowder into the gunpowder cup (310).

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