A device for loading a nail gun and a method of loading the same

Abstract

The present application relates to the technical field of nail shooting bullet, disclose a kind of for the filling method of nail shooting bullet loading and firing drug, comprising: step 1, sleeve plate and medicine plate are respectively transported to the medicine guiding unit of medicine guiding equipment, and centering and positioning is fixed, medicine guiding equipment has two groups of medicine guiding unit, with the center of medicine plate as origin to establish medicine guiding coordinate system, medicine plate is located in XOY plane, and the conveying direction of medicine plate is Y axis positive direction;Step 2, at the first group of medicine guiding unit, the first sleeve plate is guided for the first time, and the medicine plate is moved along the X axis positive direction distance b, along Y axis negative direction distance b;Step 3, the first sleeve plate is transported to the second group of medicine guiding unit, and guided for the second time, and the medicine plate is moved along the X axis negative direction distance b, along Y axis positive direction distance b;Step 4, step 5 guides medicine to second sleeve plate, and the medicine plate is unchanged along the X axis position, and moves along Y axis in the opposite direction of step 2 and step 3;It improves the efficiency of medicine guiding filling.

Description

Technical Field

[0001] This invention relates to the field of nail gun cartridge technology, and more specifically to a device and a loading method for loading nail gun cartridges with propellant. Background Technology

[0002] Nail gun cartridges, as specialized ammunition for nail guns (also known as nailers), play a crucial role in modern industrial production and various construction scenarios. They generate high-pressure gas through explosion, enabling high-speed and precise insertion of nails into target objects to achieve fastening and connection functions. Therefore, they are widely used in numerous fields such as construction, interior decoration, and furniture manufacturing, becoming an important tool for improving work efficiency and ensuring construction quality.

[0003] In the production of nail gun cartridges, the propellant loading process has evolved from traditional manual loading to mechanically assisted loading. Specifically, the currently common mechanically assisted loading method involves: a propellant plate with several evenly arranged through holes, into which propellant is pre-filled; simultaneously, a sleeve plate with several evenly arranged mounting holes. The nail gun cartridge is placed with its opening facing upwards into these mounting holes, and then the through holes of the propellant plate are aligned with the mounting holes of the sleeve plate to complete the propellant loading operation. Compared to traditional manual loading, this improvement successfully achieves single-batch propellant loading, thus increasing production efficiency to a certain extent.

[0004] However, the improvement in production efficiency offered by this method is relatively limited, and it still falls short when facing large-scale production demands. While using multiple machines simultaneously can meet production efficiency requirements to some extent, it comes with high equipment costs and requires more production space, undoubtedly further increasing overall production costs and leading to low economic efficiency. Furthermore, the existing mechanical equipment-assisted loading process suffers from unstable propellant loading accuracy, which may affect the consistency of nail gun cartridge performance. This deficiency is particularly prominent in applications with extremely high requirements for nail gun cartridge quality. At the same time, equipment maintenance and debugging are also relatively complex, and downtime for maintenance further reduces actual production efficiency and increases the company's operating costs. Summary of the Invention

[0005] The present invention aims to provide an apparatus and a method for loading propellant into nail gun cartridges, so as to solve the problems of low production efficiency and high production cost in the existing nail gun cartridge propellant loading process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a loading method for loading propellant into nail gun cartridges, comprising the following steps:

[0007] Step 1: The sleeve plate containing the nail gun cartridge and the propellant plate filled with the firing charge are respectively conveyed to the propellant unit of the propellant-feeding device. The propellant-feeding device has two sets of propellant-feeding units. The sleeve plate and the propellant plate are respectively centered and fixed. The propellant-feeding coordinate system is established with the center of the propellant plate as the origin. The propellant plate is located in the XOY plane, and the conveying direction of the propellant plate is the positive Y-axis direction.

[0008] Among them, the spacing 'a' between two adjacent rows or columns of mounting holes on the sleeve plate is twice the spacing 'b' between two adjacent rows or columns of through holes on the medicine plate;

[0009] Step 2: At the first set of priming units, the first priming plate is primed for the first time. The priming plate is moved a distance b along the positive X-axis and a distance b along the negative Y-axis. Then the priming unit is loaded with the firing charge.

[0010] Step 3: The first propellant plate leaves the first propellant unit and is transported to the second propellant unit. The first propellant plate is propelled a second time by moving the propellant plate a distance b along the negative X-axis and a distance b along the positive Y-axis. Then the propellant unit loads the firing propellant, thus completing the loading of the first propellant plate.

[0011] Step 4: At the first set of priming units, the second sleeve plate is primed for the first time. The priming plate remains in the X-axis position and moves a distance b along the positive Y-axis. Then the priming unit loads the firing charge.

[0012] Step 5: The second propellant plate leaves the first propellant unit and is transported to the second propellant unit. The second propellant plate is propelled for the second time. The propellant plate remains in the X-axis position and moves a distance b in the negative Y-axis direction. Then the propellant unit loads the firing propellant, thus completing the loading of the second propellant plate.

[0013] The principle and advantages of this scheme are:

[0014] 1. Production efficiency doubles:

[0015] In the nail gun cartridge loading process, the unique 2:1 spacing ratio (a=2b) between the cartridge plate and the propellant plate, combined with the alternating operation of two sets of propellant units, successfully establishes a highly efficient loading mode of "one propellant plate and two cartridge plates". In the actual operation process of steps 2 to 5, the propellant plate achieves precise displacement in the plane with the help of a precisely constructed X / Y axis coordinate system.

[0016] Specifically, the blister pack moves precisely along the X and Y axes according to a pre-set program, with the movement distance strictly set to 'b'. This allows a single blister pack to systematically complete the filling of two sets of blister packs. The two sets of drug-feeding units cooperate closely, achieving continuous and uninterrupted operation. In the traditional single-equipment, single-filling mode, assuming 100 blister packs can be filled per hour, this solution increases production to over 200 blister packs per hour, achieving a significant increase in production efficiency of over 100%, as it can complete twice the number of blister packs per unit time.

[0017] The above solution not only significantly improves production efficiency but also effectively avoids the space occupation problems caused by the traditional multi-equipment parallel production mode. Through optimized design of the spacing between the blister pack and the packaging plate, production area can be reduced by more than 30%. This is undoubtedly a major benefit for companies with limited production space and high rental costs, achieving a substantial increase in production capacity without expanding the site size. At the same time, equipment procurement costs are also effectively controlled, eliminating the need to purchase multiple machines and reducing significant capital investment.

[0018] 2. Improved filling accuracy:

[0019] In step 1, a three-dimensional coordinate system is established with the center of the propellant plate as the origin, providing a precise positioning reference for the entire loading process. In steps 2 and 4, the propellant plate is precisely displaced (distance b) along the X and Y axes. Combined with the multiple relationship of the spacing between the mounting holes of the sleeve plate, it can be ensured that the axial deviation between the propellant and the opening of the nail gun cartridge is less than 0.1mm each time it is loaded. This makes the distribution of the propellant in the nail gun cartridge more uniform and significantly improves the uniformity of the propellant loading.

[0020] 3. Optimize equipment utilization:

[0021] This solution employs a dual-feeder unit collaborative working mechanism, which is key to improving equipment utilization. In steps 3 and 5, after the first set of feeding units successfully completes the first filling of the sleeve, the second set of feeding units can immediately and seamlessly connect to perform the secondary filling operation. This closely coordinated working mode greatly optimizes the production cycle time.

[0022] Meanwhile, during the entire filling process, the blister pack only needs to perform regular coordinate displacement according to a pre-set program, such as moving a distance b along the Y-axis in step 4. This simple and regular operation method avoids the complicated process of frequently changing positioning molds in traditional equipment, which greatly shortens the equipment debugging time.

[0023] 4. Enhanced quality control:

[0024] By establishing a standardized coordinate system, all parameters of the entire loading process are digitally controlled, enabling real-time and precise monitoring of X / Y axis displacement deviations. The double-loading process in steps 2-3 or 4-5 also effectively eliminates edge effects that may occur during a single loading process through a unique misalignment compensation mechanism. In actual production, this ensures that the propellant charge in each nail gun cartridge is nearly identical, greatly improving the consistency and stability of product quality.

[0025] 5. Reduced production costs:

[0026] This solution uses a dual-priming unit and displacement adjustment at each priming unit to load the propellant, significantly improving the production efficiency of the priming equipment. A single priming unit can meet the production capacity requirements, eliminating the need for multiple units and effectively reducing equipment and energy costs. At the same time, the displacement adjustment at each priming unit reduces the overall loading operation space requirement, so the equipment does not occupy too much plant space, reducing plant costs and improving the overall economic benefits of the enterprise.

[0027] 6. Reduce manual labor and lower production safety risks:

[0028] The propellant is a flammable and explosive hazardous chemical. Frequent human contact with it can easily lead to serious safety accidents, such as explosions and fires, if not handled carefully. These accidents not only pose a significant threat to the lives of operators but can also cause severe damage to production facilities, resulting in substantial economic losses for the company. The loading method in this solution automates the propellant introduction process. Workers only need to perform initial settings before starting the equipment and conduct simple monitoring during operation. This greatly reduces the time and frequency of direct contact between workers and the propellant, fundamentally lowering the possibility of safety accidents caused by human error. In the production workshop, even in the event of equipment failure or other unforeseen circumstances, the isolation of workers from the propellant effectively prevents major safety accidents, ensuring the safety and stability of the entire production environment.

[0029] Furthermore, the sleeve plate is located below the propellant plate. In step 2, the rear half of the nail gun cartridge in the sleeve plate of the first set of propellant units is covered by the propellant plate for loading the firing propellant; in step 4, the front half of the nail gun cartridge in the sleeve plate of the second set of propellant units is covered by the propellant plate for loading the firing propellant.

[0030] Beneficial effects: In step 2, the rear half of the nail gun cartridge in the first set of priming units is covered by the priming plate for loading the firing propellant. In step 4, the front half of the nail gun cartridge in the second set of priming units is covered by the priming plate for loading the firing propellant. This minimizes the priming plate conveying distance and time, makes the rhythm between the two priming loadings compact, improves the priming loading efficiency of a single priming plate, further improves the production efficiency of the equipment, and reduces production costs.

[0031] The layout, with the packing plate positioned below the blister pack, makes full use of the equipment's vertical space. In limited production areas, this vertical arrangement reduces the horizontal footprint. For example, in a workshop with high ceilings but limited horizontal space, this vertical layout can increase production capacity without increasing the horizontal footprint, saving valuable production space, and is particularly suitable for space-constrained production environments. This loading method also makes the internal structure more compact. Since the two sets of drug delivery units can operate the front and rear halves of the packing plate separately, the overall layout of the equipment can be optimized, reducing redundant space between internal components and enabling more efficient production operations within a limited space.

[0032] Furthermore, in steps 2-5, each firing charge loading process of the priming unit is divided into two loading and pressing processes, and the pressing amplitude of the first pressing is greater than that of the second pressing.

[0033] Beneficial effects: Each loading process of the propellant unit is divided into two stages. The first stage, with a larger displacement, initially fills the propellant to approximately the position near the opening of the nail gun cartridge, laying the foundation for subsequent precise positioning. The second stage, with a smaller displacement, fine-tunes the propellant based on the first stage, allowing it to reach the ideal loading position more accurately. This step-by-step loading mode effectively avoids the risk of positional deviation or even explosion caused by uneven instantaneous force on the propellant due to excessive pressure and difficulty in precise control when loading to the desired position in one go.

[0034] The aperture and shape of the nail gun cartridge may have a certain tolerance range, and there may be slight differences between different batches and even within the same batch. The first, larger-amplitude loading ensures that a sufficient amount of propellant enters, while the second, smaller-amplitude loading can organize and compact the excess propellant, achieving high-precision loading while ensuring safety.

[0035] Furthermore, the diameter of the mounting hole in the sleeve is larger than the diameter of the through hole in the medicine plate.

[0036] Beneficial effects: The mounting hole diameter of the sleeve is larger than the through hole diameter of the propellant plate, providing more precise positioning guidance for the propellant during the loading process. When the propellant from the propellant plate is extruded through the through hole, the larger mounting hole of the sleeve allows the propellant to enter the target position more smoothly, reducing deviation caused by hole diameter mismatch issues.

[0037] Larger mounting holes in the cartridge plate allow for better reception of the propellant as it is extruded from the through-holes in the propellant plate, reducing propellant spillage and ensuring more concentrated propellant loading into the nail gun cartridge. This results in a more stable propellant loading amount for each nail gun cartridge, reduces quality variations caused by propellant spillage, further narrows the fluctuation range of propellant combustion efficiency, and improves the stability of nail gun cartridge product quality.

[0038] Furthermore, after the propellant plate completes two firing charge loadings at the first set of propellant loading units, it continues to be transported to the second set of propellant loading units to complete two more firing charge loadings.

[0039] Beneficial Effects: The propellant blister pack undergoes four consecutive loading cycles between two sets of propellant-feeding units, fully utilizing the equipment's operating time and space resources. In traditional methods, the equipment may experience periods of idle time or underutilization of space. This loading method ensures that all components of the equipment operate efficiently throughout the entire production process, eliminating unnecessary waiting time and significantly improving production efficiency. Furthermore, it allows for the loading of more propellant onto a single blister pack, enabling multiple loading cycles, reducing the frequency of blister pack changes, shortening intermediate non-working time, and further increasing equipment capacity.

[0040] Furthermore, the number of through holes on the medicine plate is twice the number of mounting holes on the sleeve plate.

[0041] Beneficial effects: The above configuration allows for more propellant to be loaded onto a single propellant plate, enabling multiple loadings, reducing the frequency of propellant plate replacements, shortening intermediate non-working time, and further improving equipment productivity. Furthermore, during long-term use, the through holes on the propellant plate will wear down due to frequent propellant compression and friction. When the number of through holes on the propellant plate is twice the number of mounting holes on the sleeve plate, the usage frequency of each through hole is relatively reduced, extending the service life of the propellant plate, reducing the replacement frequency of the propellant plate, and further saving production material costs.

[0042] The present invention also provides a technical solution: a device for loading propellant into nail gun cartridges, used to implement the above-mentioned loading method for loading propellant into nail gun cartridges, wherein the frame is provided with a propellant plate conveying unit and a propellant loading unit, the propellant plate conveying unit is used to transport a propellant plate containing propellant, and the propellant loading unit is used to load the propellant on the propellant plate into the nail gun cartridge; the propellant plate conveying unit includes a conveying structure, a positioning structure, and a lifting and moving structure; the propellant loading unit includes a propellant loading structure and a driving structure.

[0043] The principles and beneficial effects of this solution:

[0044] 1. Improve production efficiency:

[0045] The conveying structure, positioning structure, and lifting and moving structure of the medicine blister conveying unit enable precise conveying and positioning of the medicine blister, reduce material position deviation during the filling process, and improve the accuracy and efficiency of medicine introduction.

[0046] The propellant loading unit, driven by a drive mechanism, efficiently loads the propellant from the propellant plate into the nail gun cartridge. The drive mechanism provides stable power to the propellant loading mechanism, ensuring uniform loading force and speed, and works closely with the material conveying and positioning system to make the entire loading process smooth and orderly. In large-scale production, this smooth propellant loading operation maintains a stable production rhythm, further improving production efficiency.

[0047] 2. Improve production quality:

[0048] The coordinated operation of each unit structure ensures the stability of the loading process. Precise positioning of the propellant plate and stable operation of the priming structure allow the propellant to be loaded evenly and accurately into the nail gun cartridge. In traditional equipment, unstable material conveying or dynamic fluctuations in the priming structure can lead to significant deviations in the propellant loading, affecting the performance of the nail gun cartridge. This equipment, however, can control the propellant loading deviation within an extremely small range.

[0049] Precise material positioning and stable propellant loading significantly reduce the number of defective products due to loading errors. In traditional loading methods, misalignment of the cartridge or propellant plate can prevent accurate loading of the firing propellant, resulting in a high defect rate. This equipment, through its optimized structural design, reduces the defect rate to less than half that of traditional equipment, minimizing material waste and production costs associated with defective products and improving overall product quality.

[0050] 3. Achieve safe production:

[0051] The propellant is a flammable and explosive hazardous chemical. Frequent human contact with it can easily lead to serious safety accidents, such as explosions and fires, if not handled carefully. These accidents not only pose a significant threat to the lives of operators but can also cause severe damage to production facilities, resulting in substantial economic losses for the company. With this propellant ignition equipment, the ignition process is primarily automated. Workers only need to perform initial settings before starting the equipment and conduct simple monitoring during operation. This greatly reduces the time and frequency of direct contact between workers and the propellant, fundamentally lowering the possibility of safety accidents caused by human error. In the production workshop, even in the event of equipment malfunctions or other unexpected situations, the isolation of workers from the propellant effectively prevents major safety accidents, ensuring the safety and stability of the entire production environment.

[0052] 4. Reduce production costs:

[0053] Automated propellant feeding and efficient propellant loading processes enable the propellant loading equipment to load more nail gun cartridges per unit of time. Increased equipment efficiency means that companies can produce more qualified products within the same production time. This not only reduces depreciation costs per unit of product but also increases the return on investment. Reducing equipment downtime allows for full utilization of production capacity. Companies can meet the growing market demand for nail gun cartridges without increasing the number of machines, avoiding the cost of additional investment in equipment due to insufficient stock.

[0054] Furthermore, the conveying structure includes a conveyor belt and a motor that drives the conveyor belt; the positioning structure includes a forward positioning structure arranged along the conveying direction and two transverse centering structures symmetrically arranged along the conveying direction; the lifting and moving structure includes a support frame, a guide frame inside the support frame, a fixed frame inside the guide frame, a fixed groove at the bottom of the fixed frame for accommodating the medicine plate, and a lifting and fixing structure symmetrically arranged along the conveying direction inside the support frame. The lifting and fixing structure includes a lifting cylinder and a fixing block at the end of the lifting cylinder, and the fixing block has an inwardly facing receiving groove.

[0055] Furthermore, the guide frame is slidably connected within the support frame, and the fixed frame is slidably connected within the guide frame. The fixed frame is equipped with a transverse moving cylinder connected to the guide frame and a longitudinal moving cylinder connected to the fixed frame. There are two sets of drug-guiding units, with the transverse moving cylinders in the two drug-guiding units positioned opposite each other and the output shafts of the two transverse moving cylinders moving in opposite directions. There are two sets of drug plate conveying units, which share a common conveying structure. The conveying structure has multiple independent conveyor belt lines.

[0056] Furthermore, the drug-guiding structure includes a support column and a first support plate slidably sleeved on the support column. A second support plate is connected to the bottom of the first support plate. Mounting blocks are connected around the second support plate and enclose it at the bottom to form a mounting frame. A fixing plate is detachably installed inside the mounting frame, and several drug-guiding needles are detachably connected to the fixing plate. The driving structure includes a driving cylinder, which is a double-stroke cylinder. A top plate is provided at the top of the support column and connected to the driving cylinder. The output shaft of the driving cylinder is connected to the first support plate. A connecting plate is provided between the drug-guiding unit and the support frame. The drug-guiding unit is fixed on the connecting plate. One end of the connecting plate is hinged to the support plate, and the other end is connected to a connecting block fixed on the support frame. A slot is opened on the connecting block, and an insert block is provided in the slot. Insert holes are provided on the insert block, the connecting block, and the connecting plate. The insert holes of the three correspond to each other and are installed with fixing pins. The drug-guiding unit is also connected to a vertical lifting structure, which includes a lifting column fixed to the connecting plate and a vertical lifting cylinder fixed to the support frame. A support shaft is provided at the top of the vertical lifting cylinder, and the top of the lifting column is rotatably connected to the support shaft.

[0057] This solution also has the following beneficial effects:

[0058] 1. The conveyor structure uses a belt conveyor paired with a motor, providing stable and precise power output and preventing material displacement.

[0059] The conveyor belt and motor configuration provides stable and precise power output. Compared to other transmission methods, the belt drive is characterized by smooth transmission and low noise, effectively preventing relative displacement between the nail gun cartridge and the cartridge plate, or between the propellant and the propellant plate due to vibration or impact during the conveying process.

[0060] 2. The positioning structure enables rapid and accurate positioning of the medicine blister pack, improving equipment efficiency:

[0061] The positioning structure enables rapid and precise positioning of medicine blister packs, eliminating the need for repeated adjustments, reducing idle time, improving equipment efficiency, and further enhancing production efficiency. Secondly, the forward positioning and lateral centering structures of the positioning system offer excellent versatility. The positioning components of the forward positioning structure can be adjusted according to the length and shape of different medicine blister packs, ensuring effective blocking and positioning for various types of packs. The sensors and control mechanisms of the lateral centering structure automatically adjust the centering force and method based on the width and material characteristics of the medicine blister pack, adapting to the positioning needs of different types of packs; thus effectively enhancing the equipment's versatility.

[0062] 3. The lifting structure provides a rapid response, enabling precise positioning and reducing positioning time:

[0063] The lifting cylinder has an extremely fast response speed, enabling it to complete lifting and lowering actions in a short time and achieve rapid positioning adjustments, greatly reducing the time required for blister pack positioning. Compared to traditional positioning methods, this solution can complete more drug-feeding operations per unit time, improving the equipment's working rhythm and meeting the company's demand for high-efficiency production. Furthermore, the precise lifting and positioning structure reduces equipment idle time caused by inaccurate positioning, improving equipment utilization efficiency and further enhancing production efficiency.

[0064] The propellant is a flammable and explosive substance. Shaking or displacement of the propellant plate during transport and positioning may cause leakage of the propellant. If exposed to a source of ignition or static electricity, this could easily trigger an explosion. The precise positioning and fixing function of the lifting and moving structure ensures that the propellant plate remains stable throughout the entire propellant ignition process, reducing the possibility of leakage due to plate movement and providing a crucial guarantee for safe production.

[0065] 4. Modular design, simple equipment maintenance:

[0066] Each conveying structure, positioning structure, and lifting structure adopts a modular design, allowing individual components to be maintained or replaced independently in the event of a malfunction, without the need for large-scale disassembly of the entire equipment.

[0067] 5. The design of the spacing and number of holes in the pneumatic tube sheet, combined with the adjustment of horizontal and vertical cylinders, enables efficient completion of multiple drug loading processes:

[0068] The spacing between adjacent rows or columns of mounting holes on the sleeve plate is twice the spacing between adjacent rows or columns of through holes on the medicine plate, and the number of through holes on the medicine plate is twice the number of mounting holes on the sleeve plate. This design, combined with the position control of the medicine plate by the lateral and longitudinal moving cylinders, allows for two medicine loading cycles at each medicine loading unit, and a total of four medicine loading cycles for the two medicine loading units. The lateral and longitudinal moving cylinders can quickly and accurately adjust the position of the medicine plate. During the medicine loading process, after the first medicine loading is completed, the cylinder quickly moves the medicine plate to a new position based on the hole spacing relationship between the medicine plate and the sleeve plate, in order to perform the next medicine loading. This position control greatly shortens the interval time between each medicine loading cycle. Compared with manual adjustment of the medicine plate position, or the slow adjustment of the medicine plate position by relying on complex mechanical structures in traditional equipment, the cylinder, combined with the hole characteristics of the medicine plate and the sleeve plate, can complete the position change in a very short time, ensuring a compact and efficient medicine loading process, further improving production efficiency, and achieving higher production capacity within a limited space.

[0069] 6. The equipment has a compact structure within a limited space, increasing production capacity:

[0070] The design of the hole spacing and number of the sleeve plate and the medicine plate, combined with the flexible adjustment of the medicine plate position by the horizontal and vertical moving cylinders, eliminates the need for additional equipment floor space for multiple medicine priming operations. Within the existing guide frame and fixed frame structure, the medicine plate can complete multiple priming operations by adjusting its position according to the hole characteristics using cylinders. This means that the equipment can perform more production tasks in the same space, reducing internal space redundancy and making the equipment structure more compact.

[0071] 7. Simplified maintenance and operation of the drug delivery structure reduces safety risks:

[0072] When the drug-feeding needle needs replacement or repair, the vertical lifting cylinder plays a crucial role. Its output shaft moves upward, driving the support column to rotate upward via the support shaft. This design quickly moves the fixed plate and drug-feeding needle, originally located inside the equipment, to the outside, exposing them to the air. Compared to traditional methods that require complete removal of the drug-feeding unit to access the needle, this significantly saves maintenance time. This rotation method allows maintenance personnel to more easily access the drug-feeding needle and fixed plate, eliminating the need for complex operations within the confined space of the equipment. Maintenance personnel can directly inspect, replace, or repair the drug-feeding needle or fixed plate, making the operation more intuitive and convenient. This not only reduces the difficulty of maintenance but also minimizes maintenance errors caused by operational inconvenience, improving maintenance quality.

[0073] The simplified maintenance process reduces the need for maintenance personnel to perform complex operations inside the equipment, lowering safety risks during maintenance. In traditional complete disassembly maintenance methods, maintenance personnel must operate within the confined space inside the equipment, potentially coming into contact with hazardous components and posing a risk of injury. The improved structure allows maintenance personnel to perform most operations from outside the equipment, reducing these safety hazards and ensuring their personal safety. Attached Figure Description

[0074] Figure 1 This is a schematic diagram of the overall structure of the drug delivery device according to an embodiment of the present invention.

[0075] Figure 2 This is a schematic diagram of the structure of the sleeve and medicine plate according to an embodiment of the present invention (the medicine plate and the sleeve overlap vertically).

[0076] Figure 3 This is a schematic diagram of the drug-introducing device according to an embodiment of the present invention (structure after removing the drug-introducing unit).

[0077] Figure 4 This is a schematic diagram of the first and second transmission structures according to an embodiment of the present invention.

[0078] Figure 5 This is a schematic diagram of the first positioning structure and the first lifting structure according to an embodiment of the present invention.

[0079] Figure 6 This is a partial structural schematic diagram of the drug delivery device according to an embodiment of the present invention.

[0080] Figure 7 for Figure 6 A magnified view of part A in the middle.

[0081] Figure 8 This is a schematic diagram of the first lifting structure according to an embodiment of the present invention. Figure 1 .

[0082] Figure 9 This is a schematic diagram of the lifting and fixing structure according to an embodiment of the present invention.

[0083] Figure 10 This is a schematic diagram of the first lifting structure according to an embodiment of the present invention. Figure 2 .

[0084] Figure 11 This is a schematic diagram of the drug-introducing unit in an embodiment of the present invention. Figure 1 .

[0085] Figure 12 This is a schematic diagram of the drug-introducing unit in an embodiment of the present invention. Figure 2 .

[0086] Figure 13 This is a schematic diagram of the drug-introducing unit in an embodiment of the present invention. Figure 3 .

[0087] Figure 14 This is a schematic diagram of the support structure according to an embodiment of the present invention. Figure 1 .

[0088] Figure 15 This is a schematic diagram of the support structure according to an embodiment of the present invention. Figure 2 . Detailed Implementation

[0089] The following detailed description illustrates the specific implementation method:

[0090] The reference numerals in the accompanying drawings include: sleeve 100, mounting hole 101, positioning groove 102, medicine plate 200, through hole 201, sleeve conveying unit 1, first conveying structure 11, first conveyor belt 111, first conveyor motor 112, first positioning structure 12, positioning cylinder 121, positioning block 122, positioning protrusion 123, first lifting and moving structure 13, first lifting cylinder 131, lifting plate 132, connecting cylinder 133, medicine plate conveying unit 2, second conveying structure 21, second conveyor belt 22, and second conveyor belt 23. Belt conveyor 211, second transmission motor 212, second positioning structure 22, forward positioning cylinder 221, forward positioning plate 222, lateral centering cylinder 223, U-shaped centering frame 224, centering block 225, second lifting and moving structure 23, support frame 231, guide frame 232, fixing frame 233, first fixing plate 2331, second fixing plate 2332, first notch 2333, second notch 2334, limit plate 234, lifting and fixing structure 235, second lifting cylinder 2351, fixing Block 2352, receiving groove 2353, guide block 236, lateral moving cylinder 24, longitudinal moving cylinder 25, drug guiding unit 3, drug guiding structure 31, support column 311, first support plate 312, second support plate 313, transmission column 314, mounting frame 315, fixing plate 316, drug guiding needle 317, drive cylinder 32, transition support unit 4, pushing cylinder 41, support seat structure 42, support block 421, U-shaped groove block 422, support block 423, rotating shaft 424, limiting column 425, guide Frame 426, receiving unit 5, receiving lifting cylinder 51, receiving support plate 52, plate distribution unit 6, first vertical distribution cylinder 61, plate separation conveyor plate 62, first horizontal distribution cylinder 63, first push plate 64, medicine plate distribution unit 7, second vertical distribution cylinder 71, medicine plate separation conveyor plate 72, second horizontal distribution cylinder 73, second push plate 74, connecting plate 81, connecting block 82, slot 83, insert block 84, fixing pin 85, lifting column 86, vertical lifting cylinder 87, support shaft 88.

[0091] Example 1

[0092] A loading method for loading propellant into nail gun cartridges includes the following steps:

[0093] Step 1: The sleeve plate 100 containing the nail gun cartridge and the propellant plate 200 containing the firing charge are respectively conveyed to the propellant unit 3 of the propellant guiding device. The propellant guiding device has two sets of propellant guiding units 3. The sleeve plate 100 and the propellant plate 200 are respectively centered and fixed. The propellant guiding coordinate system is established with the center of the propellant plate 200 as the origin. The propellant plate 200 is located in the XOY plane, and the conveying direction of the propellant plate 200 is the positive Y-axis direction.

[0094] Among them, such as Figure 2As shown, the spacing a between two adjacent rows or columns of mounting holes 101 on the sleeve 100 is twice the spacing b between two adjacent rows or columns of through holes 201 on the medicine plate 200; the number of through holes 201 on the medicine plate 200 is twice the number of mounting holes 101 on the sleeve 100.

[0095] Step 2: At the first drug-initiating unit 3, the first sleeve plate 100 is introduced with the first drug-initiating action. The drug plate 200 is moved a distance b along the positive X-axis and a distance b along the negative Y-axis. Then, the drug-initiating unit 3 is loaded with the firing propellant.

[0096] Step 3: The first sleeve plate 100 leaves the first group of drug-feeding units 3 and is transported to the second group of drug-feeding units 3. The first sleeve plate 100 is drug-feeded for the second time. The drug plate 200 is moved a distance b along the negative X-axis and a distance b along the positive Y-axis. Then the drug-feeding unit 3 loads the firing charge. The loading of the first sleeve plate 100 is now complete.

[0097] Step 4: At the first set of drug-initiating unit 3, the second sleeve plate 100 is introduced with the first drug-initiating action. The drug plate 200 remains in the X-axis position and moves a distance b along the positive Y-axis. Then, the drug-initiating unit 3 is loaded with the firing propellant.

[0098] Step 5: The second sleeve plate 100 leaves the first group of drug-feeding units 3 and is transported to the second group of drug-feeding units 3. The second sleeve plate 100 is drug-feeded for the second time. The drug plate 200 remains in the X-axis position and moves a distance b in the negative Y-axis direction. Then the drug-feeding unit 3 loads the firing charge, thus completing the loading of the second sleeve plate 100.

[0099] After the propellant plate 200 completes two firing charge loadings at the first set of propellant-feeding units 3, it continues to be conveyed to the second set of propellant-feeding units 3 for two more firing charge loadings. That is, after completing steps 2 and 4, one propellant plate 200 leaves the first set of propellant-feeding units 3 and continues to be conveyed to the second set of propellant-feeding units 3, repeating the centering and positioning process, and then completing the propellant loading process in steps 3 and 5. The propellant plate 200 continuously performs four firing charge loadings between the two sets of propellant-feeding units 3, making full use of the equipment's operating time and space resources. In traditional modes, the equipment may experience periods of idle time or underutilization of space. This loading method ensures that all components of the equipment operate efficiently throughout the entire production process, with no unnecessary waiting time, greatly improving the equipment's production efficiency.

[0100] Preferably, the mounting hole 101 of the sleeve 100 has a larger diameter than the through hole 201 of the propellant plate 200, so as to provide clearer positioning guidance for the propellant during the loading process. When the propellant in the propellant plate 200 is extruded through the through hole 201, the larger mounting hole 101 of the sleeve 100 allows the propellant to enter the target position more smoothly, reducing the deviation caused by the hole diameter mismatch.

[0101] Preferably, the sleeve plate 100 is located below the propellant plate 200. In step 2, the rear half of the nail gun cartridge in the sleeve plate 100 at the first propellant unit 3 is covered by the propellant plate 200 for loading the firing propellant. In step 4, the front half of the nail gun cartridge in the sleeve plate 100 at the second propellant unit 3 is covered by the propellant plate 200 for loading the firing propellant. This minimizes the conveying distance and time of the sleeve plate 100, makes the rhythm between the two propellant loading operations compact, improves the propellant loading efficiency of a single sleeve plate 100, further improves the production efficiency of the equipment, and reduces production costs.

[0102] In steps 2-5, each loading process of the propellant in the priming unit 3 is divided into two loading and pressing operations, with the first pressing operation being larger than the second. The larger first pressing operation initially fills the propellant to a general position near the opening of the nail gun cartridge, laying the foundation for subsequent precise positioning. The smaller second pressing operation, based on the first, fine-tunes the propellant, allowing it to reach the ideal loading position more accurately. This step-by-step pressing mode effectively avoids the risk of positional deviation or even explosion caused by uneven instantaneous force on the propellant due to excessive pressure and difficulty in precise control when pressing it into place all at once.

[0103] Example 2

[0104] A device for loading propellant into nail gun cartridges, combined with Figures 1-2 As shown, the device includes a frame, on which are mounted a plate conveying unit 1, a propellant plate conveying unit 2, and a propellant loading unit 3. The plate conveying unit 1 is used to transport a plate 100 containing a nail gun cartridge, the propellant plate conveying unit 2 is used to transport a propellant plate 200 containing a firing propellant, and the propellant loading unit 3 is used to load the firing propellant from the propellant plate 200 into the nail gun cartridge. The propellant plate 200 has several evenly arranged through holes 201, which are filled with firing propellant. The plate 100 has several evenly arranged mounting holes 101, and the nail gun cartridge is inserted into the mounting holes 101 with its opening facing upward. In this embodiment, the mounting holes 101 on the plate 100 correspond one-to-one with the through holes 201 on the propellant plate 200.

[0105] Combination Figure 3 , Figure 4 , Figure 5As shown, the plate conveying unit 1 includes a first conveying structure 11, a first positioning structure 12, and a first lifting and moving structure 13. The first conveying structure 11 conveys the plate 100 filled with nail gun cartridges to the first positioning structure 12. The first positioning structure 12 determines the position of the plate 100 to facilitate accurate loading of the firing propellant. The first lifting and moving structure 13 moves the plate 100 up and down to load the firing propellant on the plate 100. The propellant plate conveying unit 2 includes a second conveying structure 21, a second positioning structure 22, and a second lifting and moving structure 23. The second conveying structure 21 conveys the propellant plate 200 filled with firing propellant to the second positioning structure 22. The second positioning structure 22 centers and positions the propellant plate 200. The second lifting and moving structure 23 moves the propellant plate 200 up and down in conjunction with the propellant loading unit 3 to achieve the loading of the firing propellant.

[0106] Combination Figure 3 , Figure 4 The diagram shows that the first conveying structure 11 includes a first conveyor belt 111 and a first conveyor motor 112 that drives the first conveyor belt 111; the second conveying structure 21 includes a second conveyor belt 211 and a second conveyor motor 212 that drives the second conveyor belt 211. The top of the second conveyor belt 211 is higher than the first conveyor belt 111, and the first conveyor belt 111 is located inside the second conveyor belt 211. This ensures that the transport of the medicine plate 200 and the sleeve plate 100 is not interfered with each other, improving the synchronous transport efficiency. Both the first conveyor belt 111 and the second conveyor belt 211 use circular belts, which prevent the accumulation of floating medicine and reduce the risk of explosion.

[0107] Combination Figure 5 As shown, the first positioning structure 12 includes two sets of opposing side positioning structures arranged along the conveying direction. The sleeve plate 100 is provided with positioning grooves 102 at both ends along the conveying direction. The side positioning structure includes positioning blocks 122 and vertically arranged positioning cylinders 121. The positioning blocks 122 are provided with positioning protrusions 123 that cooperate with the positioning grooves 102 on the side facing the positioning grooves 102. The positioning protrusions 123 on both sides are inserted into the positioning grooves 102 to fix the sleeve plate 100 and prevent it from moving with the first conveying structure 11.

[0108] Combination Figure 6 , Figure 7As shown, the second positioning structure 22 includes a forward positioning structure arranged along the conveying direction and two transverse centering structures symmetrically arranged along the conveying direction. The forward positioning structure includes forward positioning plates 222 and forward positioning cylinders 221 symmetrically distributed on both sides of the frame. The forward positioning plates 222 are formed by multiple bends and include a first positioning plate connected to the forward positioning cylinder 221, a third positioning plate for intercepting the medicine plate 200, and a second positioning plate connecting the first positioning plate and the third positioning plate. The forward positioning cylinder 221 drives the forward positioning plates 222 to move perpendicular to the conveying direction. The transverse centering structure includes a transverse centering cylinder 223 and a U-shaped centering frame 224. The two ends of the U-shaped centering frame 224 are vertically bolted with L-shaped centering blocks 225. The bottoms of the third positioning plate and the centering blocks 225 are higher than the second conveyor belt line 211, so as to ensure that there is no movement interference with the second lifting and moving structure 23 when the medicine plate 200 is transversely positioned.

[0109] like Figure 5 As shown, the first lifting and moving structure 13 includes a first lifting cylinder 131 and a lifting plate 132. The lifting plate 132 is bolted to the top of the first lifting cylinder 131. The bottom ends of the lifting plate 132 are also symmetrically bolted with horizontally arranged connecting cylinders 133. The connecting cylinders 133 are connected to the adjacent side positioning structure, thereby driving the side positioning structure to move along the conveying direction.

[0110] Combination Figure 8 , Figure 9 , Figure 10As shown, the second lifting and moving structure 23 includes a support frame 231 connected to the frame. A guide frame 232 is provided inside the support frame 231, and a fixing frame 233 is provided inside the guide frame 232. The fixing frame 233 consists of two opposing first fixing plates 2331 and two second fixing plates 2332. A limiting plate 234 is provided on the inner wall of the first fixing plate 2331. The limiting plate 234 and the fixing frame 233 form a fixing groove for accommodating the medicine blister pack 200. A lifting and fixing structure 235 is symmetrically arranged inside the fixing frame 233 along the conveying direction. The lifting and fixing structure 235 is located outside the second conveyor belt 211. The lifting and fixing structure 235 includes a second lifting cylinder 2351 and a fixing block 2352 located at the end of the second lifting cylinder 2351. The fixing block 2352 has a groove. The receiving groove 2353 faces inward. The second fixing plate 2332 has a first notch 2333 and a second notch 2334 arranged sequentially along the height direction. The two are connected. The first notch 2333 faces the inside of the fixing frame 233 and does not penetrate the fixing frame 233. The second notch 2334 penetrates the fixing frame 233 laterally and downward. The second lifting cylinder 2351 is located in the first notch 2333, and the fixing block 2352 is located in the second notch 2334. The bottom of the first fixing plate 2331 and the second fixing plate 2332 are provided with guide blocks 236. The inner wall of the guide block 236 is wedge-shaped, so that the bottom of the fixing groove is a wedge-shaped flared opening that gradually widens downward. The medicine plate 200 has a larger fault tolerance space, reduces the difficulty of operation and improves the accuracy of the equipment when it is lifted.

[0111] Combination Figure 11 , Figure 12As shown, the drug-guiding unit 3 includes a drug-guiding structure 31 and a driving structure. The drug-guiding structure 31 includes four support columns 311 and a first support plate 312 that is slidably sleeved on the support columns 311. A second support plate 313 is provided at the bottom of the first support plate 312. Transmission columns 314 are connected between the two at the four corners. Mounting blocks are bolted around the second support plate 313 and the mounting blocks and the second support plate 313 enclose each other to form a mounting frame 315. Two mounting blocks in any direction have folded edges at the bottom to provide vertical support and limit the fixed block 2352. A fixed plate 316 is bolted and fixed inside the mounting frame 315. Several drug-guiding needles 317 are detachably connected to the fixed plate 316. The drive structure includes a drive cylinder 32, which is a double-stroke cylinder. A top plate connected to the drive cylinder 32 is located at the top of the support column 311. The output shaft of the drive cylinder 32 is connected to the first support plate 312. The double-stroke cylinder can precisely control the descent force of the lead needle 317, achieving two-stage lead loading. First, the drive cylinder 32 quickly pushes the lead needle 317 close to the propellant plate 200, improving work efficiency. Second, the drive cylinder 32 switches to a slow stroke, precisely controlling the insertion of the lead needle 317 into the propellant plate 200 and the loading of the firing propellant. This effectively avoids safety hazards caused by excessive force damaging the propellant plate 200 or excessive pressure on the firing propellant, and also prevents insufficient force from failing to effectively load the firing propellant into the nail gun cartridge, further improving the safety and reliability of the lead loading process.

[0112] Combination Figure 1 , Figure 3 As shown, the initial end of the sleeve conveying unit 1 is provided with a transition support unit 4 for receiving the sleeve 100, including a horizontally arranged push cylinder 41 and support structures 42 symmetrically distributed on the two inner walls of the frame. There are three support structures 42 on each side. Figure 14 , Figure 15As shown, the support structure 42 includes a support block 421 bolted to the frame. A U-shaped groove 422 is provided in the middle of the support block 421, with the groove opening facing the inside of the frame. A guide frame 426 is fitted around the outside of the U-shaped groove 422, with the bottom of the guide frame 426 being a wedge surface. A limiting post 425 is provided at the upper part of the groove opening of the U-shaped groove 422, and a rotating shaft 424 is provided at the lower part of the groove opening, through which a support is rotatably connected. Block 423 has a connecting hole on the upper part facing the limiting post 425. The connecting hole is arc-shaped. The front end of the limiting post 425 is located in the connecting hole, forming a triangular protrusion on the side opposite to the limiting post 425. The triangular protrusion makes the top of the supporting block 423 heavier. When there is no sleeve plate 100 to hold it in place, under the action of gravity, the supporting block 423 rotates downward around the rotating shaft 424 into the frame until the connecting hole abuts against the limiting post 425. In actual operation, the sleeve plate 100 is conveyed from the previous process conveyor line to the underside of the transition support unit 4 and gradually moves upward. During the upward movement, the sleeve plate 100 comes into contact with the support block 423. The support block 423 rotates upward around the rotating shaft 424 towards the outside of the frame until the sleeve plate 100 completely passes through the transition support unit 4. Under the action of gravity, the support block 423 rotates downward around the rotating shaft 424 to reset. The sleeve plate 100 is placed on the support block 423 and is officially positioned on the drug-feeding device.

[0113] Combination Figure 1 , Figure 3 As shown, the initial end of the blister pack conveying unit 2 is provided with a receiving unit 5 for receiving blister packs 200. The receiving unit 5 includes a receiving lifting cylinder 51 and a receiving support plate 52. The receiving support plate 52 is bolted to the output shaft of the receiving lifting cylinder 51. In actual operation, the blister pack 200 is conveyed to the receiving unit 5 from the previous process conveyor line. The receiving lifting cylinder 51 moves the receiving support plate 52 upward so that the blister pack 200 is located on the receiving support plate 52. Then, the receiving lifting cylinder 51 drives the receiving support plate 52 and the blister pack 200 downward so that the blister pack 200 is located on the second conveyor belt line 211. Then, the receiving support plate 52 separates from the blister pack 200.

[0114] Combination Figure 3 , Figure 6As shown, the drug-feeding equipment in this scheme also includes a plate distribution unit 6 and a drug plate distribution unit 7. The plate distribution unit 6 includes a first vertical distribution cylinder 61 and a plate separation conveyor plate 62 connected thereto, as well as a first horizontal distribution cylinder 63 and a first pusher plate 64 connected thereto. The drug plate distribution unit 7 includes a second vertical distribution cylinder 71 and a drug plate separation conveyor plate 72 connected thereto, as well as a second horizontal distribution cylinder 73 and a second pusher plate 74 connected thereto. The driving directions of the first horizontal distribution cylinder 63 and the second horizontal distribution cylinder 73 are opposite. The plate distribution unit 6 and the drug plate distribution unit 7 transfer the plate 100 and drug plate 200, which have completed the drug-feeding operation, to the next process equipment, completing intelligent and automated transfer and reducing manual labor intensity.

[0115] Specific working principle:

[0116] After completing the previous process, the sleeve plate 100 and the medicine plate 200 are received and transferred to the medicine guiding device by the transition support unit 4 and the receiving unit 5, respectively. The sleeve plate 100 is pushed onto the first conveyor belt 111 by the push cylinder 41. The positioning cylinder 121 located at the front drives the positioning block 122 to move upward until the positioning protrusion 123 is flush with the positioning groove 102 of the sleeve plate 100. The first drive motor drives the first conveyor belt 111 to transport the sleeve plate 100 to the first positioning structure 12 so that the positioning protrusion 123 is inserted into the positioning groove 102. The side positioning structure located at the rear is first driven by the connecting cylinder 133 to move laterally. The positioning cylinder 121 then drives the positioning block 122 to move upward. The connecting cylinder 133 then drives the side positioning structure to reset as a whole. The positioning cylinder 121 then drives the positioning plate to move downward to cooperate with the positioning groove 102. The sleeve plate 100 achieves the position positioning during the filling process.

[0117] The blister pack 200 is located on the second conveyor belt 211. The second drive motor drives the second conveyor belt 211 to transport the blister pack 200 to the second positioning structure 22. The second lifting cylinder 2351 drives the fixing block 2352 to move downward so that the receiving groove 2353 of the fixing block 2352 is flush with the second conveyor belt 211. The forward positioning cylinder 221 drives the forward positioning plate 222 to be positioned above the second conveyor belt 211. During the transport process, the blister pack 200 first enters the fixing block 2352. Inside the receiving groove 2353 of 52, it contacts the forward positioning plate 222 to achieve the positioning of the conveying direction; then, the transverse centering cylinders 223 on both sides synchronously drive the U-shaped centering frame 224 and the centering block 225 to move towards each other, and the two centering blocks 225 press the medicine plate 200 together to achieve transverse centering. Then, the transverse centering cylinder 223 and the forward positioning cylinder 221 are reset and retracted, and the second lifting cylinder 2351 drives the medicine plate 200 to move upward until the medicine plate 200 is located in the fixed groove and presses against the limiting plate 234.

[0118] The first lifting cylinder 131 drives the lifting plate 132 and the sleeve plate 100 on it to move upward until the sleeve plate 100 is in close contact with the propellant plate 200. The first lifting cylinder 131 provides bottom support for the sleeve plate 100. After the positioning treatment, the mounting holes 101 and through holes 201 on the sleeve plate 100 and the propellant plate 200 are aligned. The driving cylinder 32 drives the fixing plate 316 with the propellant needle 317 to move downward. The propellant needle 317 passes through the through hole 201 of the propellant plate 200 and presses the propellant loaded therein into the nail cartridge of the sleeve plate 100. The downward pressing process is carried out in two pressing operations.

[0119] After the explosive charge is loaded, the drive cylinder 32 moves the lead needle 317 upward to reset, and the first lifting cylinder 131 moves the sleeve plate 100 downward so that the sleeve plate 100 falls back onto the first conveyor belt 111. The positioning cylinder 121 and the connecting cylinder 133 move the positioning block 122 away from the sleeve plate 100 to reset, releasing the limiting fixation of the sleeve plate 100. The sleeve plate 100 continues to be transported by the first conveyor structure 11 to the sleeve plate distribution unit 6. The first vertical distribution cylinder 61 drives the sleeve plate separation conveyor plate 62 to lift the sleeve plate 100 upward so that it is separated from the first conveyor belt 111. Then, its first horizontal distribution cylinder 63 drives the first pusher plate 64 to push the sleeve plate 100 horizontally to the next process conveyor line.

[0120] After the explosive charge is filled, the cartridge 200 is driven downward by the first lifting cylinder 131. The cartridge 200 falls onto the second conveyor belt 211 for transport to the cartridge distribution unit 7. The second vertical distribution cylinder 71 drives the cartridge separation conveyor plate 72 to move upward to lift the cartridge 200. The second horizontal distribution cylinder 73 drives the second pusher plate 74 to push the cartridge 200 horizontally to the next process conveyor line.

[0121] Example 3

[0122] Due to space constraints in the production environment, the equipment occupies limited space, making it impossible to use multiple machines simultaneously. To further improve production efficiency, the spacing 'a' between adjacent rows or columns of mounting holes 101 on the sleeve 100 is twice the spacing 'b' between adjacent rows or columns of through holes 201 on the medicine plate 200; the number of through holes 201 on the medicine plate 200 is twice the number of mounting holes 101 on the sleeve 100. Combined with... Figure 8 As shown, in this embodiment, the sleeve plate 100 has 1000 mounting holes 101, and the medicine plate 200 has 2000 through holes 201.

[0123] Combination Figure 8 , Figure 9As shown, the guide frame 232 is slidably connected to the support frame 231, and the fixed frame 233 is slidably connected to the guide frame 232. The fixed frame 233 is provided with a transverse moving cylinder 24 connected to the guide frame 232 and a longitudinal moving cylinder 25 connected to the fixed frame 233. There are two sets of drug-guiding units 3. The transverse moving cylinders 24 in the two drug-guiding units 3 are set in opposite positions, and the moving directions of the output shafts of the two transverse moving cylinders 24 are opposite. There are two sets of medicine plate conveying units 2, and they share a set of second conveying structure 21. There are two sets of sleeve conveying units 1, and they share a set of first conveying structure 11. The first conveying structure 11 has multiple independent first conveyor belts 111, and the second conveying structure 21 has multiple independent second conveyor belts 211. The design of multiple independent belts ensures that the medicine plate 200 and the sleeve plate 100 are conveyed to the first group of medicine-inducing units 3 and the second group of medicine-inducing units 3, and that the distribution units do not interfere with each other when conveying after medicine-inducing. The division of labor among the parts is clear, avoiding the shutdown of the entire medicine-inducing equipment and reducing subsequent maintenance costs.

[0124] Specific working principle:

[0125] Based on Example 2, the sleeve 100 is first transferred to the first group of drug-guiding units 3, and the rear half of the sleeve 100 is aligned with the drug plate 200. The drug plate 200 is also first transferred to the first group of drug-guiding units 3, and is centered by the second positioning structure 22 and moved upward into the fixed groove under the drive of the second lifting cylinder 2351. Since the spacing between two adjacent rows or columns of mounting holes 101 on the sleeve 100 is twice the spacing between two adjacent rows or columns of through holes 201 on the drug plate 200, the through holes 201 on the aligned drug plate 200 and the mounting holes 101 on the sleeve 100 are staggered in both the horizontal and vertical directions. Therefore, the horizontal movement cylinder 24 drives the guide frame 232 and its internal fixed frame 233 and the drug plate 200 to move horizontally to the right by a distance b and forward by a distance b. Then the sleeve 100 is driven upward by the first lifting structure to fit tightly against the drug plate 200. The driving cylinder 32 then drives the drug-guiding needle 317 to move downward to complete the drug-guiding process.

[0126] Then, the sleeve plate 100 moves downward and lands on the first conveyor belt line 111, continuing to be conveyed forward to the second group of priming units 3. At this time, the front half of the sleeve plate 100 is aligned with the priming unit 3. The second sleeve plate 100 is conveyed to the first group of priming units 3 and positioned and moved upward. Due to the previous priming, the through hole 201 above the priming plate 200 is aligned with the nail gun cartridge on the sleeve plate 100. Therefore, the longitudinal movement cylinder 25 drives the fixed frame 233 and the priming plate 200 to move backward a distance b, while the lateral position remains unchanged. The through hole 201 containing the firing charge is aligned with the nail gun cartridge on the sleeve plate 100 again, completing the priming process.

[0127] The first group's lead-in unit 3 completed two lead-in loading operations, one for 500 holes, totaling 1000 holes. At this point, the lead plate 200 still had 1000 holes of firing propellant remaining. The lead plate 200 was then transported from the first group's lead-in sheet to the second group's lead-in unit 3 for positioning and fixation. Before the first lead-in operation in this lead-in unit 3, the lateral movement cylinder 24 drove the guide frame 232, its internal fixed frame 233, and the lead plate 200 to move laterally to the left by a distance b and backward by a distance b, the opposite of the first lead-in operation of the first group's lead-in unit 3. The first half of the first sleeve plate 100 is loaded with propellant. After the first sleeve plate 100 is loaded, the second sleeve plate 100 is conveyed to the second propellant unit 3. Before the second propellant loading, the longitudinal moving cylinder 25 drives the fixed frame 233 and the propellant plate 200 to move forward a distance b, while the lateral position remains unchanged. Then the second propellant loading is performed so that all the nail gun cartridges on the second sleeve plate 100 are loaded with propellant. At this time, all the propellant in the 2000 holes on the propellant plate 200 is also fully loaded. The propellant plate 200 is conveyed to the propellant plate distribution unit 7 for recycling.

[0128] Example 4

[0129] Based on Example 2, such as Figure 13 As shown, in this embodiment, a connecting plate 81 is provided between the drug-guiding unit 3 and the support frame 231. The drug-guiding unit 3 is fixed on the connecting plate 81. One end of the connecting plate 81 is connected to the support plate at a hinge point, and the other end is connected to a connecting block 82 fixed on the support frame 231. The connecting block 82 has a slot 83, and a plug 84 is provided in the slot 83. The plug 84, the connecting block 82, and the connecting plate 81 are all provided with insertion holes. The insertion holes of the three are corresponding and fixed pins 85 are installed. The drug-guiding unit 3 is also connected to a vertical lifting structure. The vertical lifting structure includes a lifting column 86 fixed to the connecting plate 81 and a vertical lifting cylinder 87 fixed to the support frame 231. The top of the vertical lifting cylinder 87 is provided with a support shaft 88, and the top end of the lifting column 86 is rotatably connected to the support shaft 88.

[0130] When the drug-guiding needle 317 needs to be replaced or repaired, the output shaft of the vertical lifting cylinder 87 moves upward and drives the support column 311 to rotate upward through the support shaft 88. Then, the connecting plate 81 rotates around the hinge point through the connecting block 82, exposing the fixing plate 316 and the drug-guiding needle 317 to the air. This makes it easy to repair or replace the drug-guiding needle 317 or the fixing plate 316 without having to completely remove the drug-guiding unit 3. The overall operation is simple and quick.

[0131] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A loading method for loading propellant into nail gun cartridges, characterized in that: Includes the following steps: Step 1: The sleeve plate containing the nail gun cartridge and the propellant plate filled with the firing charge are respectively conveyed to the propellant unit of the propellant-feeding device. The propellant-feeding device has two sets of propellant-feeding units. The sleeve plate and the propellant plate are respectively centered and fixed. The propellant-feeding coordinate system is established with the center of the propellant plate as the origin. The propellant plate is located in the XOY plane, and the conveying direction of the propellant plate is the positive Y-axis direction. Among them, the spacing 'a' between two adjacent rows or columns of mounting holes on the sleeve plate is twice the spacing 'b' between two adjacent rows or columns of through holes on the medicine plate; Step 2: At the first set of priming units, the first priming plate is primed for the first time. The priming plate is moved a distance b along the positive X-axis and a distance b along the negative Y-axis. Then the priming unit is loaded with the firing charge. Step 3: The first propellant plate leaves the first propellant unit and is transported to the second propellant unit. The first propellant plate is propelled a second time by moving the propellant plate a distance b along the negative X-axis and a distance b along the positive Y-axis. Then the propellant unit loads the firing propellant, thus completing the loading of the first propellant plate. Step 4: At the first set of priming units, the second sleeve plate is primed for the first time. The priming plate remains in the X-axis position and moves a distance b along the positive Y-axis. Then the priming unit loads the firing charge. Step 5: The second propellant plate leaves the first propellant unit and is transported to the second propellant unit. The second propellant plate is propelled for the second time. The propellant plate remains in the X-axis position and moves a distance b in the negative Y-axis direction. Then the propellant unit loads the firing propellant, thus completing the loading of the second propellant plate.

2. The loading method for loading propellant into a nail gun cartridge according to claim 1, characterized in that: The sleeve is located below the propellant plate. In step 2, the rear half of the sleeve at the first propellant unit is covered by the propellant plate for loading the firing propellant. In step 4, the front half of the nail gun cartridge at the second set of priming units is covered by the propellant plate for loading the firing charge.

3. A loading method for loading propellant into a nail gun cartridge according to claim 2, characterized in that: In steps 2-5, each firing charge loading process of the priming unit is divided into two loading and pressing processes, with the first pressing amplitude being greater than the second pressing amplitude.

4. A loading method for loading propellant into a nail gun cartridge according to claim 3, characterized in that: The mounting hole diameter of the sleeve plate is larger than the through hole diameter of the medicine plate.

5. A loading method for loading propellant into a nail gun cartridge according to claim 4, characterized in that: After the propellant plate is loaded with propellant twice at the first propellant priming unit, it continues to be transported to the second propellant priming unit to be loaded with propellant twice more.

6. A loading method for loading propellant into a nail gun cartridge according to claim 5, characterized in that: The number of through holes on the medicine plate is twice the number of mounting holes on the sleeve plate.

7. An apparatus for loading propellant into nail gun cartridges, for implementing the loading method according to any one of claims 1-6, comprising a frame, characterized in that: The frame is equipped with a plate conveying unit, a propellant plate conveying unit, and a propellant loading unit. The propellant plate conveying unit is used to transport the propellant plate containing the firing propellant, and the propellant loading unit is used to load the firing propellant on the propellant plate into the nail gun cartridge. The propellant plate conveying unit includes a conveying structure, a positioning structure, and a lifting and moving structure. The propellant loading unit includes a propellant loading structure and a driving structure.

8. The device for loading firing propellant into a nail gun cartridge according to claim 7, characterized in that: The conveying structure includes a conveyor belt and a motor that drives the conveyor belt; the positioning structure includes a forward positioning structure arranged along the conveying direction and two transverse centering structures symmetrically arranged along the conveying direction; the lifting and moving structure includes a support frame, a guide frame inside the support frame, a fixed frame inside the guide frame, a fixed groove at the bottom of the fixed frame for accommodating the medicine plate, and a lifting and fixing structure symmetrically arranged along the conveying direction inside the support frame. The lifting and fixing structure includes a lifting cylinder and a fixing block at the end of the lifting cylinder, and the fixing block has an inwardly facing receiving groove.

9. The device for loading firing propellant into a nail gun cartridge according to claim 8, characterized in that: The guide frame is slidably connected to the support frame, and the fixed frame is slidably connected to the guide frame. The fixed frame is equipped with a transverse moving cylinder connected to the guide frame and a longitudinal moving cylinder connected to the fixed frame. There are two sets of drug-guiding units. The transverse moving cylinders in the two drug-guiding units are positioned opposite each other, and the output shafts of the two transverse moving cylinders move in opposite directions. There are two sets of drug plate conveying units, which share a common conveying structure. The conveying structure has multiple independent conveyor belt lines.

10. The device for loading firing propellant into a nail gun cartridge according to claim 9, characterized in that: The drug-guiding structure includes a support column and a first support plate slidably sleeved on the support column. A second support plate is connected to the bottom of the first support plate. Mounting blocks are connected around the second support plate and enclose its bottom to form a mounting frame. A fixing plate is detachably installed inside the mounting frame, and several drug-guiding needles are detachably connected to the fixing plate. The driving structure includes a driving cylinder, which is a double-stroke cylinder. A top plate is provided at the top of the support column and connected to the driving cylinder. The output shaft of the driving cylinder is connected to the first support plate. A connecting plate is provided between the drug-guiding unit and the support frame. The drug-guiding unit is fixed on the connecting plate. One end of the connecting plate is hinged to the support plate, and the other end is connected to a connecting block fixed on the support frame. A slot is opened on the connecting block, and an insert block is provided in the slot. Insert holes are provided on the insert block, the connecting block, and the connecting plate. The insert holes of the three are corresponding and fixed pins are installed. The drug-guiding unit is also connected to a vertical lifting structure, which includes a lifting column fixed to the connecting plate and a vertical lifting cylinder fixed to the support frame. A support shaft is provided at the top of the vertical lifting cylinder, and the top of the lifting column is rotatably connected to the support shaft.

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