Firework inner tube sealing structure, sealing method and inner tube cake charging method

Abstract

The application discloses a firework inner tube sealing structure, a sealing method and an inner tube cake charging method. The firework inner tube sealing structure comprises a firework inner tube and a charge layer filled into the firework inner tube, and a sealing agent layer is filled above the charge layer of the firework inner tube; the sealing agent layer takes lime as a base material, and the sealing agent layer comprises a calcium silicate curing layer; the calcium silicate curing layer is generated by the reaction of the lime and a silicate-containing liquid added later. The sealing structure of the application is formed by the reaction of the cheap lime and the silicate-containing liquid, replaces the reaction method of the soil powder (magnesium oxide) and the halogen powder (magnesium chloride) in the prior art, can save 30% of the material cost, greatly shortens the curing time of the sealing agent, simplifies the process, saves the inner tube transfer warehouse of large amount of charges for the firework factory, and reduces the dangerous source.

Description

Technical Field

[0001] This invention pertains to fireworks production methods, specifically relating to a sealing structure for the inner tube of fireworks, a sealing method, and a method for filling the inner tube with propellant. Background Technology

[0002] Sealing with a sealing agent is an indispensable step in the manufacturing process of fireworks and firecrackers. Currently, the sealing agent commonly used in the fireworks and firecracker industry is also called a priming agent. Before use, it is a white powder in a sealed package, and its main components are clay powder (magnesium oxide), halogen powder (magnesium chloride), and sand powder (silicon dioxide). To use it, the sealed package is opened, and the powdered sealing agent is poured manually or mechanically into the tube of the fireworks or firecrackers that have already been filled with gunpowder. The tube is then shaken manually or mechanically to make the sealing agent more compact, and then it is exposed to air. The halogen powder in the sealing agent absorbs moisture from the air and reacts with the clay powder to solidify and clump together. The sand powder acts as a filler. After a certain period of curing, it meets the process requirements. The curing time of the sealing agent is temperature-dependent. If the room temperature is around 25℃, curing takes about 24 hours; if the temperature is as low as around 10℃, it takes about 48 hours; and if the temperature is as low as around 0℃, it takes more than 72 hours. Furthermore, the curing time of the sealing agent is also related to air humidity; higher humidity results in shorter curing times, and vice versa. Existing sealing methods suffer from long curing times and high costs. Additionally, the preparation of the sealing structure for the inner tube of fireworks using existing methods is time-consuming and costly. Summary of the Invention

[0003] The purpose of this invention is to provide a sealing structure for the inner tube of fireworks. The inner tube of fireworks using this sealing structure has a short curing time and low production cost. The technical solution of this invention is as follows:

[0004] A firework inner tube sealing structure includes a firework inner tube and a gunpowder layer filled into the firework inner tube.

[0005] A sealing agent layer is filled above the gunpowder layer of the inner tube of the fireworks;

[0006] The sealing agent layer uses quicklime as the base material and includes a calcium silicate curing layer.

[0007] The calcium silicate curing layer is formed by reacting quicklime with subsequently added silicate-containing liquid.

[0008] In the above-mentioned sealing structure of the inner tube of fireworks, preferably, the silicate-containing liquid is an aqueous solution of silicate, and the sealing agent layer contains no other materials except for the matrix material and the formed calcium silicate curing layer.

[0009] In the above-mentioned sealing structure of the inner tube of fireworks, preferably, the aqueous solution of silicate is an aqueous solution of sodium silicate, and the sodium silicate concentration of the aqueous solution of sodium silicate is 30-70%, preferably 30-50%.

[0010] Preferably, in the above-mentioned sealing structure of the inner tube of fireworks, the sealing agent layer includes the calcium silicate curing layer located at the top and the isolation layer and / or moisture-proof layer located at the bottom.

[0011] In the above-mentioned sealing structure of the inner tube of fireworks, preferably, both the isolation layer and the moisture-proof layer are made of the matrix material.

[0012] In the above-mentioned sealing structure of the inner tube of fireworks, preferably, the upper and lower materials of the sealing agent layer are formed by the silicate-containing liquid not completely penetrating the matrix material from top to bottom, and only reacting in a certain area at the top.

[0013] Preferably, in the above-mentioned sealing structure of the inner tube of fireworks, the matrix material further includes filler, the filler includes loess and / or red clay, and the mass ratio of quicklime to filler is 1:1 to 1:7 (preferably 1:1 to 1:3); the moisture content of the loess or red clay does not exceed 10%, and the particle size is less than 1 mm.

[0014] Since the filler's function is to fill, its dosage and particle size can be determined according to the existing sealing process requirements. Common fillers include powdered or granular sand, soil, industrial waste, etc. A better practice is to use loess or red clay as filler, which can achieve lower production costs. The moisture content of loess or red clay should not exceed 10%, the particle size should be less than 1 mm, and the mixing ratio of quicklime powder and loess or red clay should be 1:1 to 1:3, with 1:2 being optimal.

[0015] As a general technical concept, the present invention also provides a sealing method for the above-mentioned fireworks inner tube sealing structure, comprising the following steps:

[0016] S1: Use powdered or granular quicklime (calcium oxide), or a mixture of quicklime and filler, as a sealing agent to fill the inner tube of fireworks that have been filled with gunpowder.

[0017] S2: Apply glass glue (sodium silicate) or sodium silicate-containing liquid to the top of the sealant after filling;

[0018] S3: Keep the inner tube of the firework flat (with the guide line facing down and the inner tube opening facing up) until the glass glue or silicate-containing liquid reacts with the quicklime in the sealing agent to form a calcium silicate curing layer.

[0019] Preferably, the sealing agent is compacted using a mold before applying glass glue or silicate liquid to the sealing agent.

[0020] In the above-described technical solution of the present invention, the role of the glass adhesive is to react with quicklime powder during the penetration process to generate calcium silicate, which then solidifies and adheres to the inner cylinder wall, forming a cured layer with a certain strength. More preferably, the sealing agent layer without glass adhesive penetration or containing silicate liquid can serve as an isolation layer and a moisture-proof layer between the sealant and the gunpowder. In this case, the upper and lower structures of the sealing agent layer are formed by the incomplete penetration thickness and reaction area of ​​the silicate liquid in the matrix material (i.e., some areas participate in the reaction, and some areas do not). The amount and concentration of glass adhesive are determined based on the absence of quicklime layer penetration; generally, a glass adhesive with a concentration of 30-70% is preferred, with an optimal concentration of 30%. Using the preferred sodium silicate aqueous solution formula and sealing agent formula, the reaction and curing can be completed in 5-10 minutes.

[0021] In this invention, the amount of sealing agent can be determined according to the customer's requirements for the amount of sealing agent in the prior art. The thickness of the sealing agent is generally 16-20mm when it is not compacted, and 10-14mm when it is compacted with a mold.

[0022] As a general technical concept, the present invention also provides a method for loading the inner tube of a firework, comprising the following steps in sequence: loading the inner tube of the firework, loading the inner tube of the firework with bright beads, loading the inner tube of the firework with the opened explosive, vibrating the opened explosive of the inner tube of the firework, sealing the inner tube of the firework, and unloading the inner tube of the firework. The step of sealing the inner tube of the firework includes:

[0023] S1: Quicklime, or a mixture of quicklime and filler, is used as a sealing agent and filled into the inner tube of fireworks that has been filled with gunpowder;

[0024] S2: Apply glass glue or silicate-containing liquid to the top of the sealing agent after filling;

[0025] S3: Keep the inner tube of the fireworks flat until the glass glue or silicate-containing liquid reacts with the quicklime in the sealing agent to form a calcium silicate curing layer.

[0026] Preferably, the sealing agent is compacted using a mold before applying glass glue or silicate liquid to the sealing agent.

[0027] The preferred method for loading fireworks inner tube cakes according to the present invention includes the following steps in sequence: A cake-loading device transfers the inner tube cake to be processed onto a lifting tray of a tray assembly, completing the cake-loading process; then, the inner tube cake, along with the tray assembly and annular chain, first moves to a bright bead mixing and loading device, and a cake-lifting device raises the inner tube cake on the lifting tray to a corresponding position, completing the bright bead loading process; then, the cake-lifting device descends, and the inner tube cake, along with the tray assembly and annular chain, moves to a powder-opening mixing and loading device, raising the inner tube cake on the lifting tray to a corresponding position, completing the powder-opening and loading process; finally, the cake-lifting device descends, and the inner tube cake, along with the tray assembly and annular chain, moves to a powder-opening vibration device, raising the inner tube cake on the lifting tray to a corresponding position, completing the powder-opening and loading process; and finally, the cake-lifting device descends, and the inner tube cake, along with the tray assembly and annular chain, moves to a powder-opening vibration device, raising the inner tube cake on the lifting tray to a corresponding position, completing the powder-opening and loading process; and finally, the cake-lifting device moves the inner tube cake on the lifting tray to a corresponding position ... completing the powder-opening and loading process; and finally, the cake-lifting device moves the inner tube cake to a corresponding position, raising the inner tube cake on the lifting tray to a corresponding position, completing the powder-opening and loading process; and finally, the cake-lifting device moves the inner tube cake to a corresponding position, raising the inner tube The inner tube cake is raised to the corresponding position, and the opening and vibration process of the inner tube cake is completed by the opening and vibration device. Then, the top cake device descends, and the inner tube cake moves with the tray assembly and the ring chain to the bottom of the sealing agent loading device, where the sealing agent loading device completes the sealing agent loading process. Then, the top cake device descends, and the inner tube cake moves with the tray assembly and the ring chain to the middle of the sealing agent compaction device 7, where the sealing agent compaction device completes the sealing agent compaction process. Then, the inner tube cake moves with the tray assembly and the ring chain to the bottom of the sealing agent dispensing device, and the top cake device raises the inner tube cake on the lifting tray to the corresponding position, where the sealing agent dispensing device completes the sealing agent dispensing process. Then, the top cake device descends, and the inner tube cake moves with the tray assembly and the ring chain to the bottom cake unloading device, where the bottom cake unloading process is completed.

[0028] Beneficial effects

[0029] Compared with the prior art, the present invention has the following significant advantages:

[0030] 1. The sealing agent uses inexpensive quicklime powder reacting with glass glue to replace the existing clay powder (magnesium oxide) and halogen powder (magnesium chloride), which can save 30% of the material cost;

[0031] 2. Since the curing layer in this invention is formed by the reaction of glass glue and quicklime powder to produce calcium silicate, which is unrelated to the moisture in the air, the filler can be inexpensive loess or red clay, which can further reduce the material cost. In contrast, the existing technology can only use sand and gravel with good air permeability. If loess or red clay with stickiness is used, it will not be conducive to the halogen powder absorbing the moisture in the air and reacting with the soil powder.

[0032] 3. When the dispensing method of the present invention is applied to the loading process of the inner tube cake of fireworks, the time for the glass glue to react with quicklime powder to generate calcium silicate is much shorter than the time for the halogen powder to react and solidify by absorbing moisture from the air and soil powder in the prior art. This can greatly shorten the curing time of the sealing agent, thereby simplifying the process, saving fireworks factories from the need for a large amount of inner tube transfer warehouse, and reducing the source of danger.

[0033] The present invention will now be described in detail with reference to the embodiments. Attached Figure Description

[0034] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of the fireworks inner tube cake loading device that applies the present invention.

[0036] Figure 2 This is a schematic diagram of the inner cylinder cake conveying device in this invention.

[0037] Figure 3 , Figure 4 These are schematic diagrams of the tray assembly in different directions in this invention.

[0038] Figure 5 This is a schematic diagram of the topping device and tray assembly in this invention.

[0039] Figure 6 , Figure 7 This is a schematic diagram of the structure of the cake-loading device in this invention.

[0040] Figure 8 yes Figure 7 An enlarged view of the pancake-grabbing mechanism of the pancake-feeding device shown at point A.

[0041] Figure 9 , Figure 10 , Figure 11 These are schematic diagrams of the bright bead mixing and charging device in different directions according to the present invention.

[0042] Figure 12 This is a partial structural schematic diagram of the bright bead mixing and loading device in this invention.

[0043] Figure 13 This is a schematic diagram of the scraper mechanism in the bright bead mixing and charging device.

[0044] Figure 14 This is a schematic diagram of the structure of the medicine opening vibration device in this invention.

[0045] Figure 15 , Figure 16These are schematic diagrams of the sealing agent compaction device in different directions according to the present invention.

[0046] Figure 17 This is a schematic diagram of the sealing agent dispensing device in this invention.

[0047] Figure 18 yes Figure 17 A partial structural diagram of the sealing agent dispensing device shown at point B.

[0048] Figure 19 — Figure 21 These are schematic diagrams of the cake-feeding device in different directions according to the present invention.

[0049] Figure 22 This is a schematic diagram of the dust removal device in this invention.

[0050] Figure 23 This is a schematic diagram of the internal structure of the dust removal device.

[0051] Figure 24 This is a schematic diagram of the sealing structure of the inner tube of fireworks according to an embodiment of the present invention.

[0052] Figure 25 This is a cross-sectional photograph of the inner tube of a firework in an embodiment of the present invention without adhesive.

[0053] Figure 26 This is a cross-sectional photograph of the inner tube of a firework after the adhesive has been applied and cured, according to an embodiment of the present invention.

[0054] Figure 27 This is a flowchart of the fireworks inner tube sealing method according to an embodiment of the present invention.

[0055] Figure 28 The following is a preferred flowchart of the fireworks inner tube sealing method according to an embodiment of the present invention. Detailed Implementation

[0056] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0057] The inner tube cake is well-known in the field and is the basic unit of fireworks production. It is made up of multiple inner tubes that are tightly attached together. The bottom of the inner tube is sealed with a priming agent and a fuse. The inner tube cake is generally hexagonal, and commonly used models contain 61 and 91 inner tubes.

[0058] Example 1:

[0059] See Figure 27The method for sealing the inner tube of fireworks shown includes filling the inner tube of fireworks, which has been filled with gunpowder, with powdered quicklime (calcium oxide) as a sealing agent. Then, glass glue (sodium silicate) is dripped on the quicklime. The inner tube of fireworks is kept flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The amount of quicklime and the amount and concentration of glass glue are determined according to the sealing process requirements.

[0060] Example 2:

[0061] See Figure 27 The method for sealing the inner tube of fireworks shown includes filling the inner tube of fireworks, which has been filled with gunpowder, with powdered quicklime as a sealing agent. Then, glass glue is dripped on the quicklime. The inner tube of fireworks is kept flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The concentration of the glass glue is 30%, the inner tube of fireworks is kept flat for 1 hour, and the thickness of the sealing agent is 16mm.

[0062] Example 3

[0063] See Figure 27 The method for sealing the inner tube of fireworks shown includes filling the inner tube of fireworks, which has been filled with gunpowder, with granular quicklime as a sealing agent. Then, glass glue is dripped on the quicklime. The inner tube of fireworks is kept flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The concentration of the glass glue is 70%, the inner tube of fireworks is kept flat for 5 hours, and the thickness of the sealing agent is 18mm.

[0064] Example 4

[0065] See Figure 27 The method for sealing the inner tube of fireworks shown includes using a mixture of powdered quicklime and a certain amount of powdered filler as a sealing agent, filling the inner tube of fireworks with the sealing agent, then dripping glass glue on the sealing agent, keeping the inner tube of fireworks flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The concentration of the glass glue is 50%, the inner tube of fireworks is kept flat for 3 hours, and the thickness of the sealing agent is 17mm.

[0066] Example 5

[0067] See Figure 28 The method for sealing the inner tube of fireworks shown includes using a mixture of granular quicklime and a certain amount of granular filler as a sealing agent, filling the inner tube of fireworks with the sealing agent, pressing the sealing agent with a mold, then dripping glass glue on the sealing agent, keeping the inner tube of fireworks flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The concentration of the glass glue is 50%, the inner tube of fireworks is left flat for 2 hours, and the thickness of the sealing agent is 10mm.

[0068] Example 6

[0069] See Figure 28 The method for sealing the inner tube of fireworks shown includes mixing granular quicklime (calcium oxide) with a certain amount of filler as a sealing agent, filling the mixture of quicklime and filler into the inner tube of fireworks, compacting the mixture with a mold, then dripping glass glue (sodium silicate) onto the mixture, keeping the inner tube of fireworks flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The concentration of the glass glue is 40%, the inner tube of fireworks is kept flat for 3 hours, and the thickness of the sealing agent is 11mm.

[0070] Example 7

[0071] See Figure 28 The method for sealing the inner tube of fireworks shown includes using a mixture of granular quicklime and a certain amount of powdered filler as a sealing agent, filling the inner tube of fireworks with the sealing agent, pressing the sealing agent with a mold, then dripping glass glue on the sealing agent, keeping the inner tube of fireworks flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The concentration of the glass glue is 60%, the inner tube of fireworks is left flat for 4 hours, and the thickness of the sealing agent is 12mm.

[0072] Example 8

[0073] See Figure 28 The method for sealing the inner tube of fireworks shown includes using a mixture of powdered quicklime and a certain amount of powdered filler as a sealing agent, filling the inner tube of fireworks with the sealing agent, pressing the sealing agent with a mold, then dripping glass glue on the sealing agent, keeping the inner tube of fireworks flat until the glass glue reacts with the quicklime to form calcium silicate and a solidified layer. The concentration of the glass glue is 50%, the inner tube of fireworks is kept flat for 2 hours, and the thickness of the sealing agent is 12mm.

[0074] In the above embodiments, the filler material is powdered or granular sand, soil, industrial waste, etc. When loess or red soil is used, its moisture content does not exceed 10%, the particle size is less than 1 mm, and the mixing ratio of quicklime powder and loess or red soil is 1:1 to 1:3, with 1:2 being optimal.

[0075] Example 9

[0076] The method for loading fireworks inner tube cakes provided by the present invention includes loading continuously conveyed inner tube cakes with explosives using a feeding device, a mixing device and at least one loading device connected in sequence. The feeding device feeds the explosives in batches according to the amount of explosives used in the inner tube of each inner tube cake, and then the mixing device and the loading device mix and load the explosives in batches in sequence.

[0077] See Figure 1The firework inner cylinder cake loading equipment provided by the present invention includes: an inner cylinder cake conveying device 1 arranged in a ring; a tray assembly 105 conveyed by the inner cylinder cake conveying device 1; a cake loading device 11 arranged along each station of the inner cylinder cake conveying device 1 and cooperating with the tray assembly 105 to sequentially complete the processes of cake loading, bright bead loading, opening powder loading, opening powder vibration, sealing agent loading, sealing agent compaction, sealing agent dispensing, cake unloading, and dust removal; a bright bead mixing loading device 2; and an opening powder mixing loading device. 4. Vibrating device for opening the package; 5. Sealing agent loading device; 6. Sealing agent compaction device; 7. Sealing agent dispensing device; 8. Cake dropping device; 9. Dust removal device; 10. Top cake device 3, which works in conjunction with the bright bead mixing loading device 2, the opening package mixing loading device 4, the opening package vibrating device 5, the sealing agent loading device 6, and the sealing agent dispensing device 8 to complete the corresponding process; The bright bead mixing loading device 2, the opening package mixing loading device 4, and the sealing agent loading device 6 are all loading devices with the same structure.

[0078] See Figure 1 — Figure 5 The inner cylinder cake conveying device 1 includes an inner rail 104 and an outer rail 107 arranged horizontally in a ring via a bracket 101, a ring chain and sprocket mechanism arranged along the inner rail 104, and several tray assemblies 105. The chain and sprocket mechanism includes a ring chain 106 supported on the inner rail 104 by rollers 102, and a driving sprocket 103 and a driven sprocket 103' that drive the ring chain 106 to move. The tray assembly 105 includes a fixed tray 1051 fixed on the ring chain 106 and located outside the ring chain 106, and a tray 1051 disposed on the fixed tray 1051. The upper part is a sliding lifting tray 1052. The upper part of the lifting tray 1052 is provided with six hexagonal elastic edging pieces 1055. The lower part of the lifting tray 1052 is provided with a tray top rod 1054 and a tray slide rod 1056. The lower part of the fixed tray 1051 is provided with a tray roller 1053 and a linear bearing 1057 that move along the outer rail 107. The tray top rod 1054 of the lifting tray 1052 passes through the fixed tray 1051 and cooperates with the linear bearing 1057 through the tray slide rod 1056. The tray assembly 105 is provided on the ring chain 106.

[0079] See Figure 1 — Figure 5Under the control of the electronic control system, the active sprocket 103 of the chain and sprocket mechanism drives the annular chain 106 to carry the pallet assembly 105 in a counterclockwise motion along the inner rail 104 and the outer rail 107. The cake loading device 11 transfers the inner cylinder cakes a, which are arranged in a row on the side, to the lifting pallet 1052 of the pallet assembly 105 one by one. Then, the inner cylinder cakes a, along with the pallet assembly 105 and the annular chain 106, first move to the bright bead mixing and loading device 2. After the bright bead mixing and loading device 2 completes the bright bead filling of the inner cylinder cakes a, it moves to the opening and mixing device 4, where the opening and mixing device 4 is used for mixing. The loading device 4 fills the inner cylinder cake a with the opening drug, and then moves it to the opening drug vibration device 5. Vibration ensures the opening drug evenly permeates around the bright beads. After vibration, it moves to the sealing agent loading device 6, which fills the inner cylinder cake a with sealing agent. Then it moves to the middle of the sealing agent compaction device 7, compacts it, and then moves to the sealing agent dispensing device 8. After applying adhesive to the sealing agent, it moves to the cake lowering device 9, which picks up the inner cylinder cake a from the lifting tray 1052 and stacks it on a movable flat belt. Throughout the process, the cake raising device 3 lifts the inner cylinder cake a from the lifting tray 1052 to the appropriate position, cooperating with the bright bead mixing loading device 2, the opening drug mixing loading device 4, the opening drug vibration device 5, the sealing agent loading device 6, and the sealing agent dispensing device 8 to complete their respective processes.

[0080] See Figure 5 The topping device 3 includes a topping cylinder 301 fixed to the inner rail 104 via a cylinder seat 303, and a topping pad 302 disposed on the piston rod of the topping cylinder 301. In this invention, the topping device 3 is respectively mounted below the bright bead mixing and filling device 2, the package opening and mixing and filling device 4, the package opening and vibration device 5, the sealing agent filling device 6, and the sealing agent dispensing device 8.

[0081] See Figure 6 — Figure 8The pancake feeding device 11 includes a downwardly inclined pancake feeding mechanism, a pancake pushing mechanism corresponding to the lower end of the pancake feeding mechanism, a pancake grabbing mechanism and a pancake pressing mechanism disposed on the pushing mechanism; the pancake feeding mechanism includes a pancake feeding frame 1103, a downwardly inclined chute 1104 disposed on the pancake feeding frame 1103, a pancake feeding motor 1101, a conveyor belt 1102 driven by the pancake feeding motor 1101 disposed at the bottom of the chute 1104, and a spring sheet 1105 disposed above the lower end of the chute 1104 and pressing downward; the pancake pushing mechanism includes a pancake pushing mechanism mounting frame 11102 connected to the inner rail 104, a positioning plate base plate 11091 with several through slots mounted on the pancake pushing mechanism mounting frame 11102, and a pancake grabbing mechanism and a pressing mechanism disposed on the positioning plate base plate 11091. The bottom end of the groove 1104 is equipped with a cake-pouring baffle 1106, a cake-pushing cylinder 1107 located at one end of the positioning plate bottom plate 11091, a push plate 1108 connected to the cake-pushing cylinder 1107 and sliding back and forth along the positioning plate bottom plate 11091, a positioning plate 11092 located on the other end of the positioning plate bottom plate 11091 and corresponding to the push plate 1108, a dust collection hopper 1131 located below the positioning plate bottom plate 11091, and a dust collection bucket 1132 placed below the dust collection hopper 1131. The front end of the push plate 1108 and the positioning plate 11092 are respectively provided with openings that match the shape of the inner cylinder cake a. The opening of the positioning plate 11092 and the opening of the push plate 1108 can be closed to form a regular hexagon that matches the shape of the inner cylinder cake a.The pancake-grabbing mechanism includes a pancake-grabbing mechanism mounting bracket 11101 connected to the inner rail 104, a circular rail 1123 fixed on the pancake-grabbing mechanism mounting bracket 11101 and located above the positioning plate base 11091 of the pancake-pushing mechanism, a pancake-grabbing mechanism forward and backward moving cylinder 1122, a pancake-grabbing mechanism moving base plate 1125 that can move forward and backward by means of a linear bearing 1124 cooperating with the circular rail 1123 and driven by the pancake-grabbing mechanism forward and backward moving cylinder 1122, and a pancake-grabbing mechanism upper and lower... Cylinder 1111 and linear bearing 1119, a cake-grabbing claw opening and closing cylinder mounting plate 1121 connected to the upper and lower cylinders 1111 of the cake-grabbing mechanism and cooperating with the linear bearing 1119 via the first guide rod 1120, and a cake-grabbing assembly suspended below the cake-grabbing claw opening and closing cylinder mounting plate 1121, the cake-grabbing assembly including a cake-grabbing claw opening and closing cylinder 1112, a first-stage hexagonal star-shaped base plate 11131 suspended below the cylinder body of the cake-grabbing claw opening and closing cylinder 1112, and a positioning tie rod 11133 fixedly mounted on the first stage. The hexagonal star-shaped base plate 11132 below the hexagonal star-shaped base plate 11131, the hexagonal star-shaped push-pull plate 1114 connected to the piston rod of the grappling claw opening and closing cylinder 1112, the six linear bearings 1115 arranged in a ring on the secondary hexagonal star-shaped base plate 11132, the grappling claw push-pull rod 1116 installed below the hexagonal star-shaped push-pull plate 1114 passing through each linear bearing 1115, and the grappling claw push-pull rod 1116 hinged to the secondary hexagonal star-shaped base plate 11132 and corresponding to the grappling claw push-pull rod 1116. The drive arm has a pancake gripper 1118, and each corresponding pancake gripper push-pull rod 1116 is connected to the drive arm of the pancake gripper 1118 via a pancake gripper connecting rod 1117; the pancake pressing mechanism includes a pancake pressing cylinder 1126 and a linear bearing 1128 installed below the other end of the pancake pressing mechanism moving base plate 1125, a pressing plate connecting plate 1129 connected to the piston rod of the pressing cylinder 1126 and cooperating with the linear bearing 1128 via a second guide rod 1127, and a pressing plate 1130 connected to the pressing plate connecting plate 1129.

[0082] See Figure 6 — Figure 8Workers neatly place several inner cylinder cakes a, which are to be loaded with medicine, on the conveyor belt 1102 in the chute 1104 of the cake feeding mechanism under a force measurement state. The inner cylinder cake a at the bottom is kept in a side-standing state by the clamping of the spring piece 1105. Under the control of the electronic control system, the conveyor belt 1102 moves downward a certain distance. The inner cylinder cake a at the bottom will first detach from the spring clip 1105. Under its own weight, the inner cylinder cake a will first flip over and then completely detach from the conveyor belt 1102. Under the constraint of the cake-turning baffle 1106, the inner cylinder cake a can reliably flip over horizontally and fall onto the positioning plate bottom plate 11091 and in front of the push plate 1108. Since the positioning plate bottom plate 11091 is provided with several through slots, if some soil or tailings fall off the bottom of the inner cylinder cake a during the flipping process, the fallen material can smoothly pass through the through slots on the positioning plate bottom plate 11091 and fall into the ash collection bucket 1132, which is pre-filled with water, through the ash collection hopper 1131. Since the opening of the push plate 1108 and the opening on the positioning plate 11092 together form a shape that perfectly matches the inner cylinder cake a. The inner cylinder cake is a regular hexagon, so under the action of the cake-pushing cylinder 1107, the inner cylinder cake can be accurately pushed to the opening of the positioning plate 11092 by the push plate 1108 each time. Then, the cake-grabbing mechanism forward and backward moving cylinder 1122 drives the cake-grabbing mechanism moving base plate 1125 to move forward so that the cake-grabbing mechanism upper and lower cylinder 1111 on it corresponds to the inner cylinder cake a that has been positioned below. The piston rod of the cake-grabbing mechanism upper and lower cylinder 1111 is connected to the cake-grabbing claw opening and closing cylinder mounting plate 1121. At the same time, four first guide rods 1120 are erected on the cake-grabbing claw opening and closing cylinder mounting plate 1121. The first guide rods 1120 cooperate with the linear bearings 1119 installed on the cake-grabbing mechanism moving base plate 1125. Therefore, when the cake-grabbing mechanism upper and lower cylinder 1111 works, it can drive the entire cake-grabbing mechanism installed under its piston rod to move up and down without rotating.Before the piston rod of the upper and lower cylinder 1111 of the pancake-grabbing mechanism moves downward, the piston rod of the pancake claw opening and closing cylinder 1112 moves downward first, pushing the hexagonal star-shaped push-pull plate 1114 downward, which in turn pushes the pancake claw push-pull rod 1116 downward, and then pushes the pancake claw connecting rod 1117, thereby simultaneously opening the six pancake claws 1118. Then, the piston rod of the upper and lower cylinder 1111 of the pancake-grabbing mechanism begins to move downward, and stops after reaching the set position. The piston rod of the pancake claw opening and closing cylinder 1112 moves upward, causing the six pancake claws 1118 to close to grab the inner cylinder pancake a. After that, the piston rod of the upper and lower cylinder 1111 of the pancake-grabbing mechanism moves upward, and the pancake claws 1118 grab the inner cylinder pancake a and move upward together. After rising to the initial position, the pancake-grabbing mechanism forward and backward moving cylinder 1122 drives the entire pancake-grabbing mechanism and the inner cylinder pancake a to move upward through the pancake-grabbing mechanism moving base plate 1125. After moving to the set position, the piston rod of the upper and lower cylinder 1111 of the pancake grabbing mechanism moves downward again. After reaching the set position, the piston of the pancake grabbing claw opening and closing cylinder 1112 moves down to open the pancake grabbing claw 1118, placing the inner cylinder pancake a on the lifting tray 1052 of the tray assembly 105. Then, the pancake grabbing mechanism moves up and retracts. When the pancake grabbing mechanism is about to move down to grab the next inner cylinder pancake, the pressure plate 1130 is also just above the inner cylinder pancake that was just placed down. When the pancake grabbing mechanism moves down, the pressure plate 1130, under the action of the pancake pressing cylinder 1126, presses the inner cylinder pancake a into the six elastic edges 1055 on the lifting tray 1052. Then, the pressure plate 1130 rises rapidly. At this time, the drive sprocket 103 starts to rotate, driving the entire annular chain 106 and all the tray assemblies 105 above it to move one station. Thus, the entire process of loading one inner cylinder pancake a is completed.

[0083] See Figure 9 — Figure 13The bright bead mixing and charging device 2 includes a frame 202, a feeding device mounted on the frame 202, a mixing device connected to the feeding device, a charging device connected to the mixing device, and a charging dust removal device connected to the charging device. The feeding device includes several hoppers 201 and a screw feeder 213 driven by a batching motor 203 located at the bottom of each hopper 201. The mixing device includes a collecting funnel 214 located below the discharge port of each screw feeder 213, a screen cylinder 204 located below the collecting funnel 214, a power mechanism 205 driving the screen cylinder 204 to rotate, and a transition hopper 210 located at the bottom of the screen cylinder 204. A gate (not shown in the figure) is provided at the bottom of the transition hopper 210, which is controlled by a transition hopper switching cylinder 238. The opening and closing mechanism; the loading device includes a batching mold located below the transition hopper 210, a scraper mechanism cooperating with the batching mold, and an arch-breaking mechanism 209 located above the batching mold; the batching mold includes a distribution base plate 208 fixed on the frame 202, a distribution mold 207 that can move left and right on the distribution base plate 208, a distribution cylinder connecting plate 215 installed on the distribution mold 207, and a distribution cylinder 216 fixed on the distribution base plate 208 and connected to the distribution cylinder connecting plate 215. The distribution mold 207 is located at the bottom of the transition hopper 210. The distribution base plate 208 has a discharge hole 2081 that corresponds to each inner cylinder a1 in the inner cylinder cake a. The distribution mold 207 consists of a distribution template 2071 attached to the distribution base plate 208. The material distribution mold 2071 is composed of a partition plate 2072 on the material distribution template 2071. The material distribution template 2071 is provided with storage holes 2073 that correspond to the material discharge holes 2081 on the material distribution base plate 208. The material distribution mold square rail 229 is fixed on the side of the material distribution base plate 208. The side of the material distribution template 2071 is provided with a left and right sliding slider 230 through a slider connecting plate 231. The material distribution template 2071 slides left and right relative to each other through the cooperation of the left and right sliding slider 230 and the material distribution mold square rail 229 on the material distribution base plate 208. Driven by the material distribution cylinder 216, the material distribution mold 2071 moves left and right on the material distribution base plate 208, so that the material discharge holes 2073 on the material distribution template 2071 correspond to the material discharge holes 2081 on the material distribution base plate 208. The material hole 2081 is aligned and misaligned; the material loading and dust removal device includes a material outlet located below the material distribution base plate 208, a dust collection plate 233 located on the material outlet that can seal and open the material outlet, a dust suction port 232 located on the material distribution base plate 208 that communicates with the material outlet, a dust collection plate cylinder 234 fixed on the frame 202, the piston rod of the dust collection plate cylinder 234 being connected to the dust collection plate 233, the material outlet including dust collection plate sliding grooves 236 located on both sides below the material distribution base plate 208, and a frame-shaped dust collection plate felt sealing strip 235 located between the two dust collection plate sliding grooves 236 below the material distribution base plate 208; the scraper mechanism includes a lifting mechanism fixed on the frame 202, a scraper assembly located on the lifting mechanism, and a screw pair that drives the scraper assembly to move back and forth;The lifting mechanism includes a lifting platform 211 driven by a lifting motor 212 to move up and down. The lifting motor 212 is fixed on a lifting mounting plate 218 with a vertical rail 217 and mounted on a frame 202. The lifting platform 211 is mounted on the vertical rail 217 via a slider 219. The lifting motor 212 is connected to the lifting platform 211 via a lead screw pair (not shown). The scraper assembly includes a scraper 206 located inside the material distribution mold 207, the lower edge of which can contact the material distribution template 2071. A slider seat 223 connected to the scraper 206 via a slide rod 220 is also included. A scraper square rail 228 is mounted on the lifting platform. A lead screw nut connecting plate 227 is connected to the slider seat 223. The slider seat 223 moves left and right via the scraper. A slider 224 engages with the scraper square rail 228. The lead screw pair that drives the scraper assembly to move left and right includes a scraper mounted on the lifting platform 211 via a scraper left and right movement motor seat 225. The scraper screw 226, connected to the scraper left and right moving motor 221, and the scraper screw nut 222, which is mounted on the scraper screw 226 and connected to the screw nut connecting plate 227, are all included in the arch breaking mechanism 209. The arch breaking mechanism 209 includes a material separating mold cover plate 2094 covering the material separating mold 207, an arch breaking cylinder 2096 fixed to the material separating mold cover plate 2094 via an arch breaking cylinder seat 2095, and an arch breaking mechanism connected to the piston rod of the arch breaking cylinder 2096. The system includes a needle pressure plate 2093, a piercing needle positioning plate 2092 fixed below the piercing needle pressure plate 2093, and several arch-breaking needles 2091 positioned on the piercing needle positioning plate 2092 and corresponding to the storage holes 2073 of the material distribution mold 2071. The material distribution mold cover plate 2094 is equipped with a discharge port 239 connected to the bottom of the transition hopper 210 via a cloth bag (not shown in the figure) and a distance sensor 237 for measuring the height of the bright beads inside the material distribution mold 207.

[0084] See Figure 9 — Figure 13 Typically, each inner cylinder a1 in the inner cylinder cake a contains no more than three types of bright beads. Therefore, the bright bead mixing and loading device 2 is equipped with three hoppers 201 and three screw feeders 213. The rotation angle of each batching motor 203 is proportional to the number of bright beads output. According to the process requirements, the electrical control system controls the three batching motors 203 to rotate a specific angle each time, which can accurately complete the preparation of one batch of bright beads. The sieve cylinder 204 contains three layers of sieve plates and forms a certain angle with the horizontal plane. The power mechanism 205 is connected to the motor reducer by a gearbox, a universal joint coupling, and a shaft. While the screw feeders 213 are dispensing, the sieve cylinder 204 is mixing. The mixed bright beads then enter the transition hopper 210. When the gate at the bottom of the transition hopper 210 is open, the previously mixed bright beads can smoothly enter the distribution mold 207 under their own weight. When the gate is closed, the mixed bright beads can only exist at the bottom of the transition hopper and cannot flow into the distribution mold 207.

[0085] See Figure 9 — Figure 13 The distance sensor 237 on the material distribution mold cover plate 2094 is located directly below the middle position of the area where the remaining bright beads accumulate after each scraper 206 scrapes them back from the material distribution template 2071. The distance sensor 237 allows the electronic control system to monitor the accumulation height of the remaining bright beads in the material distribution mold 207 in real time. Generally, to ensure that all the storage holes 2073 on the material distribution template 2071 are filled in one round trip by the scraper 206, the remaining bright beads should be 1-1.5 times the amount filled each time. The electronic control system will automatically dispense 2.25 times the normal filling amount of material for the first inner cylinder cake a. Since the amount supplied by the feeding device each time is not exactly equal to the filling amount, and the error will accumulate, the electronic control system monitors the material balance in real time through the distance sensor 237. If there is an excess, the amount of material will be reduced appropriately next time; if there is a shortage, the amount of material will be increased next time.

[0086] See Figure 9 — Figure 13The scraper mechanism is used to fill the medicine (bright beads) in the dispensing mold 207 into the storage hole 2073 on the dispensing template 2071. The scraper 206 moves left and right and up and down, on the one hand pushing the medicine on the dispensing template 2071 into the storage hole 2073 and filling it, and on the other hand pushing the excess medicine after filling the storage hole 2073 away from the storage hole area, so that when the dispensing mold 207 is opened, the excess medicine can be retained on the dispensing mold 207. When scraper 206 is positioned at the far right of the distributing mold 207 and its bottom surface is attached to the distributing template 2071, a portion of the mixed medicine flows entirely into the distributing mold 207 through the gate opened by the transition hopper switch cylinder 238 below the transition hopper 210. Immediately afterward, the transition hopper switch cylinder 238 closes the gate, and the feeding and mixing devices simultaneously begin operation to prepare material for the next batch. The feeding and mixing devices must complete the preparation of one portion of material within a specified time to ensure it is ready before the next gate opens. The screen barrel 204 has stopped rotating; on the other hand, the scraper left and right movement motor 221 immediately starts driving the scraper screw 226, thereby driving the scraper 206 to move to the left until the scraper 206 reaches the right side of the second vertical row of storage holes 2073 on the far left and stops. Then, the lifting motor 212 drives the lifting platform 211 to rise a certain distance along the vertical track 217 through the screw pair, driving the scraper 206 to a position slightly higher than the remaining material. Then, the scraper 206 continues to move to the far left and stops. Then, the lifting motor 212 drives the lifting platform 211 to fall down, scraping... Plate 206 contacts the material distribution template 2071 again. Then, the scraper left and right movement motor 221 reverses, and scraper 206 scrapes back to the right until it passes the rightmost storage hole 2073 and stops. Then, the electrical control system will check whether the top cake cylinder 301 of the top cake device 3 is in the lifting state. If not, the check continues. If yes, the material distribution cylinder 216 will be activated, driving the material distribution mold 207 to move a certain distance to the left to open the mold, so that the storage hole 2073 is fully aligned with the discharge hole 2081 on the material distribution base plate 208. Under the combined action of the material's own weight and the hole-breaking needle 2091, The material in the storage hole 2073 will reliably flow out from the discharge hole 2081. Then, the distribution cylinder 216 resets and closes the mold. Then, the lifting motor 212 drives the lifting platform 211 to rise a certain distance along the vertical track 217 through the lead screw pair. Similarly, it drives the scraper 206 to rise to a position slightly higher than the remaining material. Then, the scraper continues to move to the far right. Then, the lifting motor 212 drives the lifting platform 211 to fall. The scraper 206 contacts the distribution template 2071 again. At this point, the scraper 206 has completed a complete set of actions and returned to the starting position.

[0087] See Figure 9 — Figure 13When the tray assembly 105, carrying the inner cylinder cake a, moves from the upper cake device 11 to the bright bead mixing and loading device 2, the supporting cake-lifting device 3 at this station lifts the lifting tray 1052 and the inner cylinder cake a together, so that the top surface of the inner cylinder cake a fully contacts the bottom surface of the distributing base plate 208. Then, the distributing cylinder 216 drives the distributing mold 207 to move to the left on the distributing base plate 208 through the distributing cylinder connecting plate 215, so that the storage holes 2073 on the distributing template 2071 are aligned with the discharge holes 2081 on the distributing base plate 208, and the bright beads flow into the inner cylinders a1 of the inner cylinder cake a. To prevent the bright beads from bridging and jamming in the storage hole 2073 of the material distribution template 2071, when the storage hole 2073 is aligned with the discharge hole 2081 on the material distribution base plate 208, the anti-bridging cylinder 2096 drives the anti-bridging pressure plate 2093 to press down until the anti-bridging needle 2091 inserts into the storage hole 2073 and then retracts, ensuring that all the bright beads are injected into the inner cylinder cake a. After that, the material distribution cylinder 216 is reset, and the storage hole 2073 is completely misaligned with the discharge hole on the material distribution base plate 208. Then, the top cake cylinder 301 is reset, and the inner cylinder cake a and the lifting tray 1052 fall down together and detach from 208. At this point, the bright bead mixing and filling process is completed.

[0088] See Figure 9 — Figure 13 When the dust collection device is working, the dust collection plate 233 can slide back and forth in the dust collection plate sliding groove 236 under the push of the piston rod of the dust collection plate cylinder 234. The upper surface of the dust collection plate 233 is tightly fitted with the dust collection plate felt sealing strip 235. The suction port 232 is connected to the explosive dust industrial-grade dust collector (not shown in the figure) through a pipe. When the inner cylinder cake a is about to be lifted by the top cake cylinder 301, the piston rod of the dust collection plate cylinder 234 retracts, driving the dust collection plate 233 to move forward. Since the explosive dust industrial dust collector is always working, the dust collection plate 233 moves forward while the suction port 232 sucks up the dust on the dust collection plate 233. After the inner cylinder cake a is filled with bright beads and falls down after cooperating with the material distribution bottom plate 208, the dust collection plate 233 immediately moves backward, thereby sealing the material drop port under the material distribution bottom plate 208 to prevent dust from drifting.

[0089] The structure and working principle of the drug mixing and filling device 4 and the sealing agent filling device 6 are exactly the same as those of the bright bead mixing and filling device 2. The difference is that, according to the process requirements, the drug mixing and filling device 4 is equipped with five hoppers and corresponding screw feeders, while the sealing agent filling device 6 is equipped with one hopper and corresponding screw feeder.

[0090] See Figure 14The drug opening vibration device 5 includes a vibrator seat 501 fixed inside the inner rail 104, a support 504 suspended on the vibrator seat 501 by a vibration spring 502, and a vibration motor 503 mounted on the support 504. When the ring chain 106 carries the fixed tray 1051 of the tray assembly 105 and the lifting tray 1052 of the inner cylinder cake a filled with bright beads and drug opening material to the drug opening vibration device 5, the top cake device 3 below it lifts the inner cylinder cake a until it reliably contacts the bottom surface of the support 504. Then the vibration motor 503 starts to work, vibrating the inner cylinder cake a, so that the drug opening material just filled on the bright beads falls and penetrates into the gaps between the bright beads. After vibrating for several seconds, it stops, and the top cake device 3 resets. At this point, the drug opening vibration work is completed.

[0091] See Figure 15 , Figure 16 The sealing agent compaction device 7 includes a frame structure that surrounds the inner rail 104, outer rail 107, and annular chain 106 of the inner cylinder cake conveying device 1, allowing the pallet assembly 105 on the annular chain 106 to pass through; a support structure disposed within the frame structure for supporting the pallet assembly 105; and a compaction mechanism disposed on the frame structure. The frame structure consists of an inner side plate 708, an outer side plate 709, a lower connecting plate 712, and an upper connecting plate 707. The inner side plate 708 and the lower connecting plate 712 are fixed to the inner rail 104, and the upper connecting plate 707 has through holes 7071 corresponding to each inner cylinder a1 in the inner cylinder cake a. The support structure... The structure includes a "U"-shaped component 711 located at the bottom of the frame structure between the inner rail 104 and the outer rail 107, and a roller 710 located at the upper end of the "U"-shaped component 711. The "U"-shaped component 711 allows the pallet top rod 1054 of the pallet assembly 105 to pass through. The compaction mechanism includes a compaction plate 705 movably sleeved on a support rod 703 located between the upper connecting plate 707 and the top plate 702, and a compaction cylinder 701 fixed on the top plate 702 whose piston rod is connected to the compaction plate 705 through a connector 704. The bottom surface of the compaction plate 703 is provided with a pin 706 that passes through a through hole 7071 on the upper connecting plate 707.

[0092] See Figure 15 , Figure 16 After the inner cylinder cake a, filled with sealing agent by the sealing agent filling device 6, is guided along the inner rail 104 and outer rail 107 by the tray assembly 105 to the station of the sealing agent compaction device 7, the compaction cylinder 701 starts to work, driving the compaction plate 705 to move downward, so that the pin 706 on the bottom surface of the compaction plate 705 passes through the through hole 7071 on the upper connecting plate 707, compacting the sealing agent in the inner cylinder a1 of the inner cylinder cake a. Then the compaction cylinder 701 is reset, and the sealing agent compaction process is completed.

[0093] See Figure 17 , Figure 18The sealing agent dispensing device 8 includes an adhesive suction device and an adhesive dispensing device. The adhesive suction device includes a dispensing bracket 803 fixed on the annular inner rail 104, a dispensing motor 801 fixed on the dispensing bracket 803 via a dispensing motor base 802, a guide column 804 fixed on the dispensing bracket 803, a dispensing lifting plate 808 sleeved on the guide column 804 via a linear bearing 805, a dispensing screw 806 connected to the dispensing motor 801, a dispensing screw nut 807 fixed on the dispensing lifting plate 808 and cooperating with the dispensing screw 806, a dispensing piston 809 connected to the dispensing lifting plate 808, and a dispensing piston 809 fixed on the dispensing bracket 803 and cooperating with the dispensing piston 809. The glue cylinder 810, the glue inlet pipe 811 and the glue outlet pipe 815 connected to the bottom of the glue cylinder 810, the first one-way valve 812 and the glue filter 813 located at the bottom of the glue inlet pipe 811, the glue bucket 814 used in conjunction with the glue inlet pipe 811, the second one-way valve 816 and the third one-way valve 817 located on the glue outlet pipe 815, the glue distributor 818 connected to the glue outlet pipe 815, the glue dispensing plate bracket 821 fixed on the glue dispensing bracket 803, the glue dispensing plate 820 fixed on the glue dispensing plate bracket 821, and a number of glue dispensing pipes 819 located between the glue distributor 818 and the glue dispensing plate 820. The number of glue dispensing pipes 819 on the glue dispensing plate 820 corresponds to the number of inner cylinders a1 of the inner cylinder cake a.

[0094] See Figure 17 , Figure 18 After the sealed agent-compacted inner cylinder cake a is introduced into the sealing agent dispensing device 8, the top cake device 3 below it lifts the inner cylinder cake a until it directly contacts the bottom surface of the dispensing plate 820. Then, the dispensing motor 801 starts working, rotating the dispensing screw 806 to drive the dispensing lifting plate 808 to descend a certain distance, which in turn drives the dispensing piston 809 to descend and compress the glue in the glue cylinder 810. Under the action of the first one-way valve 812, the second one-way valve 816 and the third one-way valve 817, the glue is first squeezed into the dispensing device 818 through the dispensing pipe 815, and then squeezed into the dispensing pipe 819 until it flows out of the pipe opening. Since the opening of the dispensing pipe 819 is fixed by the dispensing plate 820, Furthermore, each inner cylinder a1 corresponds one-to-one with the inner cylinder a1 of the inner cylinder cake a. The amount of glue dispensed each time is proportional to the distance the glue dispensing piston descends. A certain amount of glue flowing out of the dispensing pipe 819 directly enters the inner cylinder a1 of the inner cylinder cake a. Then, on the one hand, the glue dispensing motor 801 starts to reverse, the glue dispensing lifting plate 808 rises, and the glue dispensing piston 809 moves upward. Under the action of the second one-way valve 816 and the third one-way valve 817, the glue at the dispensing pipe 819 stops flowing. The glue in the glue bucket 814 enters the glue cylinder 810 through the glue filter 813, the first one-way valve 812, and the glue inlet pipe 811. On the other hand, the top cake device below it resets. Thus, the sealing agent dispensing process is completed.

[0095] See Figure 19 — Figure 21The cake-discharging device 9 includes a gantry frame spanning above the inner rail 104, outer rail 107, and annular chain 106 in the inner cylinder cake conveying device 1, allowing the tray assembly 105 on the annular chain 106 to pass through; a longitudinal moving mechanism mounted on the gantry frame that can move back and forth; a cake-grabbing lifting mechanism mounted on the longitudinal moving mechanism that can move up and down; a cake-grabbing assembly 910 suspended on the cake-grabbing lifting mechanism that corresponds vertically to the tray assembly 105; and a cake-stacking device located below the longitudinal moving mechanism and connected to the cake-grabbing assembly 910. The frame includes a rear support 901 fixed to the annular inner rail 104, a front support 902 fixed to the cake stacking machine frame 912, a longitudinal slide rod seat mounting plate 9051 fixed on the rear support 901, and a longitudinal slide rod seat mounting plate 9052 fixed between the front support 902 and the rear support 901; the longitudinal movement mechanism includes a longitudinal movement cylinder 914 disposed on the longitudinal slide rod seat mounting plate 9052, and a longitudinal slide rod seat 918 disposed below the longitudinal slide rod seat mounting plates 9051 and 9052. The longitudinal slide rod 906 is fixed in the middle of the longitudinal slide rod seat 918; the longitudinal slide plate 902, which is connected to the piston rod of the longitudinal moving cylinder 914 and can move back and forth through the linear bearing 917 and cooperates with the longitudinal slide rod 906; the upper and lower track support top surface connecting plate 9161 is fixed below the longitudinal slide plate 902; and the upper and lower track support upright plate 9162 is fixed below the upper and lower track support top surface connecting plate 9161. The grabbing lifting mechanism includes a mounting frame 915 connected to the upper and lower track support upright plate 9162, and a mounting frame 915. The lifting motor 903, the lifting screw 904 connected to the lifting motor 903, the vertical guide rod 909, and the lifting slider 908 which is engaged with the lifting screw 904 by a nut and is provided on the vertical guide rod 909; the pancake grabbing assembly 910 and the pancake grabbing assembly in the pancake feeding device 11 have the same structure, including a pancake grabbing claw opening and closing cylinder 907 installed on the lifting slider 908; the pancake stacking mechanism includes a pancake stacking machine frame 912, a pancake stacking motor 911 provided on the pancake stacking machine frame 912, and a pancake stacking belt 913 driven by the pancake stacking motor 911.

[0096] See Figure 19 — Figure 21When the inner cylinder cake a, with the sealing agent already applied, is delivered to the cake-unloading device 9 by the tray assembly 105, the cake-grabbing claw opening and closing cylinder 907 opens the cake-grabbing claw, and the lifting motor 903 of the cake-grabbing lifting mechanism starts working, driving the entire cake-grabbing assembly 910 downward to the set position. Then, the cake-grabbing opening and closing cylinder 907 resets and grabs the inner cylinder cake a. Next, the lifting motor 903 reverses, driving the entire cake-grabbing assembly 910 upward. The electronic control system will reasonably determine the current upward movement based on the previously accumulated cake height. After the height is adjusted, the longitudinal movement cylinder 914 operates, driving the entire lifting mechanism and the cake-grabbing assembly 910 forward a certain distance via the longitudinal slider top mounting plate 902. Then, the cake-grabbing opening and closing cylinder 907 operates again, opening the cake-grabbing claws to place the inner cylinder cake a onto the previously stacked inner cylinder cakes or onto the stacking flat belt 913. Typically, after six inner cylinder cakes a are stacked in one pile, the stacking motor 911 starts, driving the stacking flat belt 913 forward one inner cylinder cake position before stopping. At this point, the cake unloading process is complete. A reflection sensor (not shown in the diagram) is located at the very front of the stacking flat belt 913. If the operator does not promptly remove the glued inner cylinder cakes a in sequence, the sequentially stacked inner cylinder cakes a on the stacking flat belt 913 will move sequentially to the front of the stacking flat belt, triggering the reflection sensor. The electrical control system will then automatically stop the machine, and the machine can be manually restarted after the inner cylinder cakes a are removed.

[0097] See Figure 22 , Figure 23 The dust removal device 10 includes a dust collection box 1007 connected to an annular inner rail 104, surrounding an annular chain 106 and having tray assembly inlets and outlets 1011 on both sides; a dust removal cylinder seat 1002; a dust removal cylinder 1001 mounted on the dust removal cylinder seat 1002; a tray blowing nozzle mounting plate 1003 connected to the piston rod of the dust removal cylinder 1001 and extending into the dust collection box 1007; a tray blowing nozzle 1004 mounted on the tray blowing nozzle mounting plate 1003; and a dust removal cylinder 1004 mounted inside the dust collection box 1007. The system includes a chain blowing nozzle mounting plate 1005, a chain blowing nozzle 1006 mounted on the chain blowing nozzle mounting plate 1005, a dust suction port 1008 located at the bottom of the dust suction box 1007, a dust suction cover 1009 covering the dust suction box 1007, baffle cylinders 1010 mounted on both sides of the dust suction cover 1009, and a baffle 1012 mounted on the piston rod of the baffle cylinder 1010 to block the inlet and outlet 1011 of the tray assembly. The dust suction port 1008 is connected to an explosive dust industrial vacuum cleaner (not shown in the figure).

[0098] See Figure 22 , Figure 23The chain blowing nozzle 1006 continuously blows air onto the annular chain 106. The explosive dust industrial vacuum cleaner connected to the suction port 1008 also operates continuously. When the inner cylinder cake a with applied glue is removed, before the empty tray assembly 105 is about to be carried into the suction box 1007 of the dust removal device 10 by the annular chain 106, the baffle cylinder 1010 on the right side of the suction box 1007 drives the baffle 1012 to rise, allowing the tray assembly 105 to smoothly enter the suction box 1007 from the tray assembly inlet / outlet 1011. Then, the baffle cylinder 1010 drives the baffle 1012 to descend to its initial position, blocking the tray assembly inlet / outlet 1011. Dust removal cylinder 1001 and pallet blowing nozzle 1004 start working simultaneously. Pallet blowing nozzle 1004 blows onto the pallet while moving forward. After moving to the set position, dust removal cylinder 1001 retracts, and pallet blowing nozzle 1004 continues to blow onto the pallet while retracting. After dust removal cylinder 1001 resets, pallet blowing nozzle 1004 also stops blowing. Then, left baffle cylinder 1010 drives baffle 1012 to rise. After pallet assembly 105 passes, left baffle cylinder 1010 drives baffle 1012 to descend back to the initial position to block the pallet assembly inlet and outlet 1011. At this point, the pallet blowing process is completed.

[0099] The inner tube cake production line using the fireworks inner tube cake loading method and equipment provided by this invention can produce 4,000 cakes per day. Due to the short curing time, only one inner tube cake transfer warehouse is required. There is no need to store a large number of inner tube cakes to be scratched in the transfer warehouse. Most of the inner tube cakes can be transferred to the next fireworks effect assembly process immediately.

[0100] Example 10:

[0101] The sealing structure of the inner tube of the fireworks prepared in Examples 1-8 above is as follows: Figure 24 As shown, the device includes a firework inner tube and a gunpowder layer 3b filled into the firework inner tube. A sealing agent layer 4b is filled above the gunpowder layer 3b in the firework inner tube. The sealing agent layer 4b uses quicklime as the base material and includes a calcium silicate curing layer 5b. The calcium silicate curing layer 5b is generated by reacting quicklime with a subsequently added silicate-containing liquid.

[0102] The silicate-containing liquid used in this embodiment is an aqueous solution of sodium silicate, and the sealing agent layer contains no other materials except for the matrix material, filler and the formed calcium silicate curing layer.

[0103] The sealing agent layer 4b comprises an upper calcium silicate curing layer 5b and a lower insulating and moisture-proof layer 6b. Both the insulating and moisture-proof layers 6b are made of a base material. The upper and lower materials of the sealing agent layer 4b are formed by a silicate-containing liquid partially penetrating the base material from top to bottom and reacting only in a certain area at the top. In this embodiment, the other end of the firework inner tube sealing structure can be fitted with a lead wire 1b and sealed with sealing soil 2b.

[0104] In embodiments 1-8 of this invention, the flat laying time of the inner tube of the fireworks varies from 1 to 5 hours. According to the results of cross-section testing, the actual curing time of the sealing agent layer after application is only 5 to 10 minutes.

[0105] Figure 25 This is a cross-sectional photograph of the inner tube of a firework from an embodiment of the present invention, without adhesive application. Figure 26 This is a cross-sectional photograph of the fireworks inner tube after adhesive application and curing, according to an embodiment of the present invention. Figure 2 , Figure 3 As can be seen, after applying glass glue (sodium silicate) above the sealed agent after filling, the glue will penetrate downwards along the sealed agent layer. The areas of the substrate material that have penetrated will form a calcium silicate solidified layer 5b, while the areas of the substrate material that have not penetrated completely or have not penetrated can be used as a moisture-proof layer and an isolation layer 6b. The reaction principle is that the glass glue (sodium silicate) penetrates to the upper part of the sealed agent layer, where water reacts with quicklime to generate calcium hydroxide, releasing heat at the same time. Silicate ions combine with calcium ions in calcium hydroxide, undergoing a chemical reaction to generate water-insoluble calcium silicate, which fills the tiny gaps in the sealed agent. When filler loess or red clay is added to the inner cylinder, it combines with the loess and red clay in the inner cylinder and clumps together, and sodium silicate itself has a certain degree of viscosity, which can assist in clumping. In this embodiment, the concentration of the glass glue (sodium silicate) used is 30%, and the mass ratio of quicklime to loess and red clay in the sealing agent is 1:2. The curing time after application is 5 minutes, at which point the sealing agent hardens and solidifies, making it less prone to loosening. After half an hour, the inner tube fireworks were tested and produced a loud and effective sound. The cost is calculated at 0.2 yuan per inner tube, based on the specifications of 91×1 inch / tube or 61×1.2 inch / tube.

[0106] The firework inner tube sealing structure and sealing method of this invention produce firework inner tube cakes with short curing time and low production cost.

[0107] Comparative Example 1:

[0108] The sealing agent used mainly consists of clay powder (magnesium oxide), halogen powder (magnesium chloride), and sand powder (silicon dioxide). To use, open the sealed packaging and, manually or mechanically, pour the powdered sealing agent into the pre-filled fireworks or firecracker tubes. Then, shake the tube manually or mechanically to make the sealing agent more compact. Afterward, expose it to the air. The halogen powder in the sealing agent absorbs moisture from the air and reacts with the clay powder, solidifying and agglomerating. The sand powder acts as a filler. After a certain period of curing, it meets the process requirements. The curing time of the sealing agent is temperature-dependent. If the room temperature is around 25°C, curing takes about 24 hours; if the temperature is around 10°C, it takes about 48 hours; and if the temperature is around 0°C, it takes more than 72 hours. The curing time is also related to air humidity; higher humidity shortens the curing time, and vice versa.

[0109] The coagulation process using magnesium oxide and magnesium chloride is a common industry practice, but because it requires the absorption of moisture from the air, the curing time is very long. The cost is calculated at 0.32 yuan per cake based on an inner cylinder size of 91×1 inch / cake or 61×1.2 inch / cake, which is high. Furthermore, if the raw material composition changes and the coagulant manufacturer does not adjust the formula in time, it can sometimes be ineffective. The reason for this ineffectiveness is that the microstructure of magnesium oxide consists of countless microcrystalline aggregates with internal pores. While magnesium oxide can expand in volume after absorbing moisture from the air, the effect is not significant. Only when magnesium chloride solution is added can a significant gelling phenomenon be produced through its reaction with magnesium oxide. Magnesium oxide and magnesium chloride must be mixed in a specific molar ratio; if the content of raw materials such as clay powder and halogen powder is uneven, or if the composition changes and the molar ratio is not adjusted, the process will be ineffective.

[0110] Comparative Example 2:

[0111] A dry powder sealing technology for firecracker fuses is characterized by using a hardening agent made of salt, magnesium chloride (MgCl2), baking soda (NaHCo3), and inorganic chlorides; a coagulant made of white cement, quicklime, (CaO) or hydrated lime (Ca(OH)2), silicate cement, etc.; and fine sand, silica, calcium carbonate, light carbonate, etc., as fillers. After mixing the above materials, the mixture is sieved through an 80-120 mesh sieve to obtain a dry powder fuse sealing agent. This agent is applied around the fuse after it is inserted into the firecracker, and then allowed to harden naturally at room temperature for 10-20 hours, thus achieving the purpose of sealing the fuse. The ratio of the above-mentioned dry powder fuse sealing agent is: hardening agent 2-10 : coagulant 30-160 : filler 40-100. This type of solidifying agent hardens by absorbing moisture from the air, which then reacts chemically with the filler. Condensation and solidification require a large amount of moisture, thus taking a relatively long time. The cost is calculated at 0.30 yuan per cake based on inner cylinder dimensions of 91×1 inch / cake or 61×1.2 inch / cake, which is relatively high.

[0112] Comparative Example 3:

[0113] A firecracker fuse binder is made by uniformly mixing three raw materials: silicate cement, powdered stone, and a hardener. The weight percentages of the three raw materials are: silicate cement 25% wt, powdered stone 75% wt, and the powdered stone is 50-100 mesh. First, the silicate cement and powdered stone are mixed to obtain a mixture. Then, 4% (by weight) of calcium chloride (by weight of silicate cement) is added to the mixture, and then it is stirred evenly to obtain the firecracker fuse binder. The obtained firecracker fuse binder is used in the firecracker curing and sealing process. When using it, an appropriate amount of water (water mist) is sprayed into the fuse binder, and the water-moistened fuse binder is quickly filled into the inserted firecracker tube by hand or machine, thereby fixing the firecracker fuse and sealing the firecracker tube. The firecracker is completely cured in about 7 hours. After the firecracker curing and sealing process is completed, it proceeds to the next firecracker processing step.

[0114] Curing Principle: Silicate cement undergoes a hydration reaction upon contact with moisture, combining with powdered aggregates to solidify and clump together. Calcium chloride acts as a water-absorbing agent, accelerating moisture absorption and providing the necessary moisture for cement curing. After absorbing water, the cement expands in volume, producing a gelling phenomenon. This gelling gradually hardens as the amount of absorbed moisture increases. The main reason for the long curing time in traditional methods is that the sealing agent requires sufficient water to harden. Since the water content in the air is relatively low, water mist contains a higher amount of water than air, providing more moisture in a short time to replenish the moisture needed for the reaction, increasing the reaction rate and accelerating the setting time.

[0115] The curing time is significantly reduced compared to Comparative Examples 1 and 2, but it is still quite long compared to the technical solution of this invention. Furthermore, due to the relatively complex process and raw materials, the cost is calculated at 0.35 yuan per cake based on the inner cylinder size of 91×1 inch / cake or 61×1.2 inch / cake, which is very high.

[0116] Comparative Example 4:

[0117] A firecracker sealing agent is uniformly mixed from quicklime (CaO), silicate cement, and stone powder (SiO2) or cinder ash. The weight percentages of the sealing agent are: quicklime (CaO) 10-30%, silicate cement 20-60%, and stone powder (SiO2) or cinder ash 10-80%. The optimal weight ratio for preparing this sealing agent is 1:3:7. To accelerate the curing speed, a small amount of desiccant can be added. In this sealing agent, quicklime (CaO) acts as a binder and has a moisture-proof effect, cement acts as a hardener, and stone powder or cinder ash accelerates hardening. Therefore, the mixture of quicklime (CaO), silicate cement, stone powder (SiO2), or cinder ash creates an ideal sealing agent. It is used to fix the fuse and seal the cylinder opening. It gradually hardens over time, achieving the desired tightness and sealing effect after 10-15 hours without the need for any liquid spraying.

[0118] The principle behind this technical solution is essentially to harden the cake by absorbing moisture from the air. However, sufficient moisture cannot be obtained without a relatively long curing time. The curing time is long, and the cost is calculated at 0.28 yuan per cake based on the inner cylinder size of 91×1 inch / cake or 61×1.2 inch / cake, which is relatively high.

[0119] Comparative Example 5:

[0120] The curing time for the fireworks inner tube cake filling production line in Comparative Example 1 is as short as 24 hours; for Comparative Example 2, it is 10-20 hours; for Comparative Example 3, it is 7 hours; and for Comparative Example 4, it is 10-15 hours. Due to the long curing time, even with the shortest curing time (Comparative Example 3), which produces 4000 cakes per day, nearly 2 tons of inner tube cakes need to be stored every 7 hours. This requires at least three inner tube transfer warehouses, each 15 square meters in size, to store the cakes awaiting curing. Considering the safety of storing large quantities of inner tube cakes, the distance between the transfer warehouses must be at least 60 meters, significantly increasing production costs.

[0121] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A sealing structure for a fireworks inner tube, comprising a fireworks inner tube and a gunpowder layer filled into the fireworks inner tube, characterized in that: A sealing agent layer is filled above the gunpowder layer of the inner tube of the fireworks; The sealing agent layer uses granular or powdered quicklime as the base material, and the sealing agent layer includes a calcium silicate curing layer at the top and an isolation layer and a moisture-proof layer at the bottom; the isolation layer and the moisture-proof layer are both made of the base material; The calcium silicate solidified layer is formed by reacting the granular or powdered quicklime with the subsequently added sodium silicate-containing liquid.

2. The sealing structure for the inner tube of fireworks according to claim 1, characterized in that, The sodium silicate-containing liquid is an aqueous solution of sodium silicate, and the sealing agent layer contains no other materials besides the base material and the formed calcium silicate curing layer.

3. The sealing structure for the inner tube of fireworks according to claim 2, characterized in that, The sodium silicate concentration in the aqueous solution of sodium silicate is 30% to 70%.

4. The sealing structure for the inner tube of fireworks according to claim 1, characterized in that, The upper and lower materials of the sealing agent layer are formed by the sodium silicate liquid not completely penetrating the matrix material from top to bottom, and only reacting in a certain area at the top.

5. The sealing structure for the inner tube of fireworks according to any one of claims 1-3, characterized in that, The matrix material also includes filler, which includes loess or red soil. The mixing ratio of granular or powdered quicklime to filler is 1:1 to 1:

3. The moisture content of the loess or red soil does not exceed 10%, and the particle size is less than 1 mm.

6. A sealing method for the sealing structure of the inner tube of fireworks as described in any one of claims 1-5, characterized in that, Includes the following steps: S1: Granular or powdered quicklime, or a mixture of granular or powdered quicklime and filler, is used as a sealing agent and filled into the inner tube of fireworks that has been filled with gunpowder. S2: Apply glass glue or sodium silicate-containing liquid to the top of the sealing agent after filling; S3: Keep the inner tube of the fireworks flat until the glass glue or sodium silicate liquid reacts with the granular or powdered quicklime in the sealing agent to form a calcium silicate curing layer.

7. The sealing method according to claim 6, characterized in that, Before applying glass glue or sodium silicate-containing liquid to the sealing agent, the sealing agent is first compacted using a mold. The amount of glass glue or sodium silicate-containing liquid added and the silicate concentration are controlled to ensure that the sealing agent layer is not completely penetrated, so as to form a calcium silicate curing layer on top of the sealing agent layer and an isolation layer and a moisture-proof layer on the bottom of the sealing agent layer.

8. A method for loading explosives into the inner tube of fireworks, comprising the following steps in sequence: The process of loading the inner tube of a firework into a cake, filling the inner tube with bright beads, opening the inner tube and filling it with powder, vibrating the opened inner tube, sealing the inner tube, and unloading the inner tube is characterized in that the sealing step of the inner tube is performed using the sealing method described in claim 7.

9. The loading method according to claim 8, characterized in that, The steps are as follows: The loading device transfers the inner tube cake to be processed onto the lifting tray of the tray assembly, completing the loading process. Then, the inner tube cake, along with the tray assembly and the ring chain, first moves to the area under the bright bead mixing and charging device. The top-loading device then raises the inner tube cake on the lifting tray to the appropriate position, and the bright bead mixing and charging device completes the bright bead charging process. Next, the top-loading device descends, and the inner tube cake, along with the tray assembly and the ring chain, moves to the area under the opening and mixing device. The top-loading device raises the inner tube cake on the lifting tray to the appropriate position, and the opening and mixing device completes the opening and charging process. Finally, the top-loading device descends, and the inner tube cake, along with the tray assembly and the ring chain, moves to the area under the opening and vibrating device. The top-loading device raises the inner tube cake on the lifting tray to the appropriate position, and the opening and mixing device completes the opening and charging process. The vibration device completes the vibration process of the inner tube cake of the firework opening; then the top cake device descends, and the inner tube cake moves with the tray assembly and the ring chain to the bottom of the sealing agent loading device, where the sealing agent loading device completes the sealing agent loading process of the inner tube cake; then the top cake device descends, and the inner tube cake moves with the tray assembly and the ring chain to the middle of the sealing agent compaction device, where the sealing agent compaction device completes the sealing agent compaction process of the inner tube cake; then the inner tube cake moves with the tray assembly and the ring chain to the bottom of the sealing agent dispensing device, and the top cake device lifts the inner tube cake on the lifting tray to the corresponding position, where the sealing agent dispensing device completes the sealing agent dispensing process of the inner tube cake; finally, the top cake device descends, and the inner tube cake moves with the tray assembly and the ring chain to the bottom cake unloading device, where the bottom cake unloading process of the inner tube cake is completed.

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