Powdered explosive feeding device

Abstract

The application discloses a powder explosive feeding device, which only needs manual pushing of a material receiving container loaded with materials to a specified position, and the rest of actions are completed by the device, so that the labor intensity of manual work is reduced, the contact between people and explosives is avoided, and the safety is improved. The explosive feeding process is carried out in a sealed state, so that the occurrence of floating explosives is effectively reduced. The efficiency and precision of feeding can be ensured. The feeding process can ensure that the material proportion in the mixed materials does not change greatly, and the stability of the materials is ensured. The powder explosive accumulation angle can be effectively reduced, and the effective use volume of the container is improved.

Description

Technical Field

[0001] This invention relates to the field of ammunition production technology, and in particular to a powder explosive feeding device that can realize functions such as quantitative material dispensing, automatic feeding of powder explosives in a single channel, and automatic uniform distribution of powder material during its fall. Background Technology

[0002] In the ammunition industry, explosives often need to be weighed quantitatively. Manual weighing of explosives is detrimental to the safety of on-site operators, and the spillage of materials creates floating explosives that constantly endanger the occupational health of on-site operators. To free up workers, automatic explosive feeding mechanisms have emerged.

[0003] In existing technologies, feeding mechanisms for heavy explosives typically use simple vibratory feeders, which have several drawbacks. For example, when using vibratory feeders, excessive vibration amplitude makes it impossible to control feeding accuracy, while insufficient vibration amplitude leads to long feeding times and fails to meet cycle time requirements. Additionally, the feeder's receiving end is connected to the hopper, and the vibration can cause the powder in the hopper to vibrate, easily resulting in stratification of the mixture. Furthermore, the feeder lacks a distribution structure at the bottom, and the accumulation angle formed when the material falls will occupy most of the vertical space of the receiving container, resulting in an excessively large receiving device volume.

[0004] It is evident that the existing technology using simple vibration feeding has problems such as inability to control feeding accuracy, easy to cause material stratification, and inability to eliminate the accumulation angle formed when the material falls. This results in problems such as long weighing time, unqualified materials, and excessively large receiving device volume during automatic weighing.

[0005] Therefore, how to provide a feeding device that can realize the functions of quantitative material feeding, automatic feeding of powdered explosives in a single channel, and automatic uniform distribution of powdered material during its fall is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of the above problems, the present invention provides a powder explosive feeding device to overcome or at least partially solve the above problems. This powder explosive feeding device, which meets the requirements for large weights, can realize functions such as quantitative material dispensing, automatic feeding of powder explosives in a single channel, and automatic uniform distribution of powder material during its descent, thereby achieving more efficient and stable feeding of powder explosives and a higher effective volume ratio of the receiving container.

[0007] This invention provides the following solution:

[0008] A powdered explosive feeding device, comprising:

[0009] The feeding unit includes a temporary storage component for temporarily storing powdered explosives in a sealed manner.

[0010] A vibrating feeding unit, wherein the feed inlet of the vibrating feeding unit is connected to the temporary storage unit through a first conductive flexible metal tube;

[0011] The feeding unit is connected to the discharge port of the vibrating feeding unit. The feeding unit includes a lifting and distributing cone assembly. The lifting and distributing cone assembly includes a lifting drive assembly and a distributing cone. During the feeding process of the vibrating feeding unit, the lifting drive assembly is used to drive the distributing cone to move up and down reciprocally so that the falling material is evenly distributed into the receiving container.

[0012] Preferably, the temporary storage assembly includes a tubular body, a first butterfly valve, and a second butterfly valve; both the first butterfly valve and the second butterfly valve are connected to the tubular body; a temporary storage cavity is formed between the first butterfly valve and the second butterfly valve; and the lower end of the tubular body is connected to the first conductive flexible metal tube.

[0013] Preferably, the feeding unit includes a storage bin for storing powdered explosives; the storage bin is connected to the upper end of the tubular body.

[0014] Preferably, the vibrating feeding unit includes a feeding channel, which is equipped with a figure-eight channel switch and a pen-shaped cylinder; the pen-shaped cylinder is used to drive the opening and closing of the figure-eight channel switch to adjust the flow rate of material flowing through the feeding channel per unit time.

[0015] Preferably, the receiving container is disposed on the upper part of the weighing component, and the pen-shaped cylinder is used to drive the opening and closing size of the figure-eight channel switch door according to the weight value fed back by the weighing component.

[0016] Preferably, the feeding unit includes a feeding funnel, and the distribution cone passes through the feeding funnel and is connected to the lifting drive assembly.

[0017] Preferably, the feeding funnel is connected to a second conductive flexible metal tube, the second conductive flexible metal tube is connected to a movable cover plate, the movable cover plate is provided with a hollow structure, and the distribution cone passes through the hollow structure and the feeding funnel and is connected to the lifting drive assembly.

[0018] Preferably, the receiving container is provided with a sealing cover, and the inner contour structure of the sealing cover is adapted to the outer contour structure of the movable cover.

[0019] Preferably, the lower end of the feeding funnel is provided with a flared opening, and the distribution cone can move upward under the action of the lifting drive assembly to block the channel of the flared opening.

[0020] Preferably, the lifting drive assembly includes an electric cylinder.

[0021] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0022] This application provides a powdered explosive feeding device. The entire process requires only manual pushing of the material-filled receiving container to the designated position; all other actions are completed autonomously by the equipment. This reduces labor intensity, avoids contact between personnel and the explosive, and improves safety. The explosive feeding process is conducted in a sealed state, effectively reducing the occurrence of floating explosives. This ensures feeding efficiency and accuracy. The feeding process ensures that the material ratio in the mixture does not change significantly, guaranteeing material stability. It effectively reduces the angle of repose of the powdered explosive, increasing the effective usable volume of the container.

[0023] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a powder explosive feeding device provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the vibrating feeding unit provided in an embodiment of the present invention;

[0027] Figure 3 This is a top view of the vibrating feeder unit provided in an embodiment of the present invention.

[0028] In the diagram: feeding unit 1, tubular body 11, first butterfly valve 12, second butterfly valve 13, storage hopper 14, vibrating feeding unit 2, feeding channel 21, figure-eight channel switch door 22, pen-shaped cylinder 23, first conductive flexible metal tube 3, unloading unit 4, lifting drive assembly 41, distribution cone 42, unloading funnel 43, second conductive flexible metal tube 44, movable cover plate 45, sealing cover plate 46, receiving container 5, weighing assembly 6. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0030] See Figure 1 , Figure 2 , Figure 3 This invention provides a powdered explosive feeding device, such as... Figure 1 , Figure 2 , Figure 3 As shown, the device may include:

[0031] The feeding unit 1 includes a temporary storage component, which is used to temporarily store the powdered explosive in a sealed manner.

[0032] Vibrating feeding unit 2, the feed inlet of the vibrating feeding unit 2 is connected to the temporary storage unit through the first conductive flexible metal tube 3;

[0033] The feeding unit 4 is connected to the discharge port of the vibrating feeding unit 2. The feeding unit 4 includes a lifting distribution cone assembly. The lifting distribution cone assembly includes a lifting drive assembly 41 and a distribution cone 42. During the feeding process of the vibrating feeding unit 2, the lifting drive assembly 41 is used to drive the distribution cone 42 to move up and down reciprocally so that the falling material is evenly distributed into the receiving container 5.

[0034] The powder explosive feeding device provided in this application embodiment has a vibrating feeding unit 2 whose inlet is connected to a temporary storage unit via a first conductive flexible metal tube 3. This first conductive flexible metal tube 3 isolates the material, preventing material stratification caused by vibration transmission. The unloading unit 4 is designed with a lifting distribution cone assembly at its outlet, which distributes the falling material more evenly into the receiving container 5, reducing the material's accumulation angle and minimizing its occupation of most of the receiving container 5's volume.

[0035] The temporary storage component provided in this application embodiment can be used to temporarily store materials. Specifically, this application embodiment can provide the temporary storage component including a tubular body 11, a first butterfly valve 12, and a second butterfly valve 13; both the first butterfly valve 12 and the second butterfly valve 13 are connected to the tubular body 11; a temporary storage cavity is formed between the first butterfly valve 12 and the second butterfly valve 13; the lower end of the tubular body 11 is connected to the first conductive flexible metal tube 3. Further, the feeding unit 1 includes a storage hopper 14, which is used to store powdered explosives; the storage hopper 14 is connected to the upper end of the tubular body 11. The double butterfly valve pipeline mechanism and the vibrating feeding channel 21 are connected by a conductive flexible connection to quantitatively feed materials into the vibrating channel, so that the weight in the vibrating channel is constant, which facilitates the control of feeding accuracy and ensures that the proportion of each material in the mixture remains unchanged. At the same time, the isolation of materials also prevents the vibration from being transmitted through the material and causing material stratification.

[0036] To address the issue that traditional vibratory feeders cannot freely switch between coarse and fine feeding, this embodiment provides a vibratory feeder unit 2 including a feed channel 21. The feed channel 21 is equipped with a channel switch door and a pen-shaped cylinder 23. The pen-shaped cylinder 23 drives the opening and closing of the channel switch door to adjust the flow rate of material passing through the feed channel 21 per unit time. This vibratory feeder unit 2 adopts a "multi-purpose" approach, adding a figure-eight switch valve to the cylinder on a single-channel vibratory feeder, enabling both coarse and fine feeding during the vibratory feeding process, while ensuring that powdered explosives flow out from the middle of the channel for easy distribution by the distributor.

[0037] To allow adjustment of the opening and closing size of the figure-eight channel switch 22 according to the needs of the feeding process, this embodiment of the application may also provide that the receiving container 5 is disposed on the upper part of the weighing component 6, and the pen-shaped cylinder 23 is used to drive the opening and closing size of the figure-eight channel switch 22 according to the weight value fed back by the weighing component 6. In practical applications, at the start of feeding, the figure-eight channel switch 22 can be driven to a large opening state, so that the flow rate is high per unit time, and the feeding speed is accelerated by coarse feeding. After the weight value fed back by the weighing component 6 approaches the target weight, the pen-shaped cylinder 23 can drive the figure-eight channel switch 22 to move towards the closing direction, so that the opening of the figure-eight channel switch 22 is reduced, the flow rate per unit time is reduced, and thus fine feeding is achieved. By using coarse feeding and fine feeding in combination, both feeding efficiency and feeding accuracy can be guaranteed.

[0038] To prevent the powdered explosive from scattering during the feeding process of the feeding unit 4, this embodiment of the application may also provide that the feeding unit 4 includes a feeding funnel 43, and the distribution cone 42 passes through the feeding funnel 43 and is connected to the lifting drive assembly 41. The feeding funnel 43 can guide the powdered explosive as close as possible to the receiving container 5, reducing the possibility of scattering.

[0039] To further reduce the possibility of powdered explosive spillage during the feeding process and achieve sealed transmission, this embodiment of the application may also provide a second conductive flexible metal tube 44 connected to the feeding funnel 43. The second conductive flexible metal tube 44 is connected to a movable cover plate 45, which has a hollow structure. The distribution cone 42 passes through the hollow structure and the feeding funnel 43 and is connected to the lifting drive assembly 41. Furthermore, the receiving container 5 is provided with a sealing cover plate 46, the inner contour structure of which is adapted to the outer contour structure of the movable cover plate 45. The second conductive flexible metal tube 44 ensures that the vibration generated by the feeding unit is not transmitted to the receiving container 5, effectively preventing the possibility of material stratification within the receiving container 5. The movable cover plate 45 designed at the feeding funnel 43 can slide up and down. The lifting distribution cone 42 can lift it to close the feeding channel. Simultaneously, relying on gravity for closure reduces the friction and impact force on the explosive during closure, ensuring safety.

[0040] To prevent residual medicine in the feeding unit 4 from entering the receiving container 5 after weighing, thus affecting the final weighing accuracy, this embodiment of the application may also provide a flared opening at the lower end of the feeding funnel 43. The distribution cone 42 can move upward under the action of the lifting drive assembly 41 to the flared opening and block the channel of the flared opening. After weighing, the lifting drive assembly 41 can drive the distribution cone 42 to move upward and eventually enter the interior of the flared opening, blocking the flared opening and ensuring that residual medicine in the feeding funnel 43 cannot flow out.

[0041] To facilitate control of the lifting speed and amplitude of the distribution cone 42, embodiments of this application may also provide that the lifting drive assembly 41 includes an electric cylinder. Using an electric cylinder allows for precise control of the lifting speed and amplitude of the distribution cone 42.

[0042] The following is a detailed description of the usage and working principle of the powder explosive feeding device provided in the embodiments of this application.

[0043] The powdered explosive is stored in the storage silo 14. Before vibratory feeding, the first butterfly valve 12 is opened and the second butterfly valve 13 is closed. After the first butterfly valve 12 is opened for a period of time, it is closed. These three consecutive actions transfer a fixed amount of powdered explosive from the storage silo 14 into the pipe between the first butterfly valve 12 and the second butterfly valve 13. Since the diameter of the tubular body 11 is fixed after the first butterfly valve 12 is opened, the purpose of quantitative temporary storage can be achieved simply by controlling the opening time of the first butterfly valve 12.

[0044] Meanwhile, the tubular body 11 at one end of the second butterfly valve 13 is connected to the vibrating feeder via a flexible connection. When the feeding device is working, the material obtained from the hopper each time is a fixed quantity. At the same time, the material is blocked by the butterfly valve, isolating the transmission of vibration between materials, ensuring the stability during vibration and the proportion of each material in the mixture. The feeding channel 21 of the vibrating feeder unit is designed with a channel opening and closing door, which can be controlled by a pen-shaped cylinder 23. When the weight fed by the weighing sensor reaches a certain value, the pen-shaped cylinder 23 retracts to close the channel opening and closing door, forming a small channel through which the material flows out, thereby ensuring the efficiency and accuracy of weighing and feeding.

[0045] A discharge funnel 43 is installed at the outlet of the feeding channel 21 of the vibrating feeding unit 2. The discharge funnel 43 is connected to the sealing cover plate 46 via a conductive flexible connection and can be suspended above the receiving container 5 to prevent a large amount of dust from spilling out during the feeding process and reduce the accumulation of floating explosives. At the same time, the lower end of the discharge funnel 43 is designed with a movable cover plate 45, which can slide up and down at the opening of the discharge funnel 43. When weighing is completed, the lifting distribution cone 42 is raised upwards, so that the distribution cone 42 covers the flared end, closing the discharge valve plate and preventing the explosive from falling into the receiving container 5 in the channel, thus affecting the accuracy. When the powdered explosive is transferred from the discharge funnel 43 to the receiving container 5, the lifting distribution cone moves up and down at a certain speed under the action of the electric cylinder, changing the landing point of the powder in the receiving container 5, thereby achieving the purpose of diverting the powdered explosive, reducing the angle of repose of the powdered explosive, and increasing the effective usable volume of the container.

[0046] In summary, the powder explosive feeding device provided in this application requires only manual pushing of the material-filled receiving container to the designated position; all other actions are completed autonomously by the equipment. This reduces labor intensity, avoids contact between personnel and explosives, and improves safety. The explosive feeding process is conducted in a sealed state, effectively reducing the occurrence of floating explosives. This ensures feeding efficiency and accuracy. The feeding process ensures that the material ratio in the mixture does not change significantly, guaranteeing material stability. It effectively reduces the angle of repose of the powder explosive, increasing the effective usable volume of the container.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0049] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A powdered explosive feeding device, characterized in that, include: The feeding unit includes a temporary storage component for temporarily storing powdered explosives in a sealed manner. A vibrating feeding unit, wherein the feed inlet of the vibrating feeding unit is connected to the temporary storage component via a first conductive flexible metal tube; The feeding unit is connected to the discharge port of the vibrating feeding unit. The feeding unit includes a lifting and distributing cone assembly. The lifting and distributing cone assembly includes a lifting drive assembly and a distribution cone. During the feeding process of the vibrating feeding unit, the lifting drive assembly is used to drive the distribution cone to move up and down reciprocally so that the falling material is evenly distributed into the receiving container. The temporary storage assembly includes a tubular body, a first butterfly valve, and a second butterfly valve; both the first butterfly valve and the second butterfly valve are connected to the tubular body; a temporary storage cavity is formed between the first butterfly valve and the second butterfly valve; the lower end of the tubular body is connected to the first conductive flexible metal tube. The vibrating feeding unit includes a feeding channel, which is equipped with a figure-eight channel switch and a pen-shaped cylinder. The pen-shaped cylinder is used to drive the opening and closing of the figure-eight channel switch to adjust the flow rate of material flowing through the feeding channel per unit time. The receiving container is located on the upper part of the weighing component, and the pen-shaped cylinder is used to drive the opening and closing of the figure-eight channel switch according to the weight value fed back by the weighing component.

2. The powder explosive feeding device according to claim 1, characterized in that, The feeding unit includes a storage bin for storing powdered explosives; the storage bin is connected to the upper end of the tubular body.

3. The powder explosive feeding device according to claim 1, characterized in that, The feeding unit includes a feeding funnel, and the distribution cone passes through the feeding funnel and is connected to the lifting drive assembly.

4. The powder explosive feeding device according to claim 3, characterized in that, The feeding hopper is connected to a second conductive flexible metal tube, which is connected to a movable cover plate. The movable cover plate has a hollow structure, and the distribution cone passes through the hollow structure and the feeding hopper to be connected to the lifting drive assembly.

5. The powder explosive feeding device according to claim 4, characterized in that, The receiving container is equipped with a sealing cover, the inner contour structure of which is adapted to the outer contour structure of the movable cover.

6. The powder explosive feeding device according to claim 3, characterized in that, The lower end of the feeding funnel is provided with a flared opening, and the distribution cone can move upward into the flared opening under the action of the lifting drive assembly to block the channel of the flared opening.

7. The powder explosive feeding device according to claim 1, characterized in that, The lifting drive assembly includes an electric cylinder.

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