Direct extrusion type firecracker fuse injection machine

Abstract

The utility model discloses a direct extrusion type firecracker fuse injection machine which comprises a cake clamping frame driving plate, an extrusion rod driving plate, an extrusion guide plate, a fuse feeding pipe supporting plate and a fuse injection pipe mounting plate which are connected through a hollow guide column, a cake clamping frame connecting rod is movably arranged in the hollow guide column, and a fuse cavity plate is arranged between the fuse feeding pipe supporting plate and the fuse injection pipe mounting plate. A fuse injection pipe is arranged on the fuse injection pipe mounting plate, one end of the fuse injection pipe is fixed on the fuse injection pipe mounting plate and communicated with the medicine distribution cavity, the other end of the fuse injection pipe extends out of the fuse injection pipe mounting plate to form a cantilever shape, a hanging plate is fixedly arranged on one side of the medicine inlet pipe supporting plate, and an elastic medicine basin is fixedly arranged on one side of the hanging plate; a medicine storage chamber is formed between the medicine basin and the hanging plate, an extrusion rod is movably arranged on the extrusion guide plate, and fuse injection is conducted in the fuse injection pipe. The utility model discloses a firecracker and firework fuse injection integrated production line which is compact in structure, convenient to manufacture, maintain and operate and small in occupied area, can form firecracker and firework fuse injection integrated production lines and is beneficial to large-scale production of firecrackers.

Description

Technical Field

[0001] The utility model relates to a firecracker and fireworks machine, in particular to an injection machine which uses fuse slurry to directly inject into a paper tube on a firecracker cake to form the fuse. Background Art

[0002] Firecracker production typically involves several steps: tube making, bottom sealing, fuse insertion, charge loading, sealing, whip binding, and packaging. Insertion and charge loading are two critical processes, and their quality and efficiency directly impact the effectiveness and economic benefits of the fireworks display. Insertion involves inserting the fuse into the paper tube. This method has evolved from traditional manual insertion to mechanical insertion, significantly improving efficiency compared to manual insertion. Currently, the fuse is made by wrapping a strip of paper with a primer and then bonding it with a flour slurry. This results in a flexible, thread-like fuse. This method presents several challenges: first, the fuse itself is inherently dangerous to manufacture; second, the production process is characterized by significant wear and tear, resulting in high labor costs and the risk of the fuse falling off and becoming untidy. Third, when mechanically inserting the fuse into the paper tube, safety incidents can easily occur during the fuse cutting process. Fourth, the fuse can be inserted unevenly, leading to issues such as breakage, folding, falling off, and loss of charge. In response to these problems, people invented an injection machine that uses the principle of squeezing toothpaste to make the fuse medicine into a paste, then squeezes it onto the inner wall of a paper tube and quickly hardens it to form a fuse. Although this injection machine has solved the above problems well, it still has the following shortcomings: First, the structure of the whole machine is relatively complex, the manufacturing and processing costs are high, and the reliability and stability are not strong enough; second, the injection needle (equivalent to the injection plug) itself is relatively thin (0.9-1.2 mm) and long (100-150 mm), and a large number of them are installed on a piece of cake, which not only increases the material and processing cost of the plunger, but also makes the injection (plunger) plug easy to deform and damage. If a plunger is deformed and damaged, it will cause trouble to replace the plunger on the entire mold, and even cause serious impact on the quality of the entire cake firecracker. Utility Model Content

[0003] In response to the many problems existing in the firecracker and fireworks injection and induction machines in the above-mentioned prior art, the utility model provides a direct extrusion firecracker injection and induction machine which is not only simpler and more compact in structure, easier to manufacture and maintain, and more flexible to use, does not require an injection and induction needle, but also has high injection and induction efficiency and good quality, and can reduce the injection and induction cost.

[0004] A direct extrusion firecracker injection machine, which includes a cake frame driving plate, an extrusion rod driving plate, an extrusion guide plate, a medicine feed pipe support plate and an injection pipe mounting plate, which are arranged on a frame and connected with hollow guide columns and supported on a bottom plate. A cake frame connecting rod is movably arranged in the hollow guide column, one end of the cake frame connecting rod is fixedly connected to a cake frame linkage plate, and the other end is fixedly connected to a cake frame that can clamp and position the firecracker cake. The cake frame linkage plate moves left and right under external force and drives the cake frame to move left and right through the cake frame connecting rod. A medicine cavity plate with a medicine cavity in the middle is arranged between the medicine feed pipe support plate and the injection pipe mounting plate. Injection pipes corresponding to the number and position of paper tubes on the firecracker cake are arranged on the injection pipe mounting plate. One end of the injection pipe is fixed to the injection The guide tube is mounted on the plate and communicates with the medicine distributing cavity, and the other end extends out of the injection tube mounting plate in a cantilever shape. A hanging plate is fixed on one side of the medicine feed tube support plate, and an elastic medicine material basin is fixed on one side of the hanging plate. A medicine storage chamber is formed between the medicine material basin and the hanging plate, and a medicine feed tube with two ends respectively communicated with the medicine storage chamber and the medicine distributing cavity is provided between the hanging plate and the medicine feed tube support plate. An extrusion rod is movably provided on the extrusion guide plate, one end of the extrusion rod is fixedly connected to the medicine material basin, and the other end can be attached to the driving screw II provided on the extrusion rod driving plate, and the other end of the driving screw II is connected to the servo motor II through gear meshing. The medicine material basin contracts under the extrusion action of the extrusion rod and can make the lead slurry in the medicine storage chamber enter the medicine distributing cavity through the medicine feed tube and then flow into the injection tube for injection.

[0005] The brief working process of the utility model is: first, the lead slurry made of potassium perchlorate, carbon ash, adhesive, moisture-proof agent and curing agent is added to the lead slurry tank, the one-way valve is opened, the lead slurry flows into the storage chamber, the firecracker cake is put on the injection tube, the injection tube is inserted into the paper tube, and the following steps are followed:

[0006] 1. Put the firecracker cake on the injection tube (the cantilever tube mouth of the injection tube is close to the mud bottom end of the paper tube), press the start switch, turn off the injection pump, open the cake clamping cylinder, and position and fix the firecracker cake on the cake clamping rack.

[0007] 2. Start the servo motor II 33 and rotate the drive screw II through gear meshing, and move it to the right together with the extrusion rod drive plate, so that the drive screw II rotates and moves to the right, pushing the extrusion rod to move to the right. When the extrusion rod moves to the right, the elastic medicine basin fixedly connected to one end of the extrusion rod is squeezed, and the lead slurry in the elastic medicine basin is squeezed through the medicine inlet pipe into the medicine dispensing cavity and then evenly enters each injection tube, so that the lead slurry is squeezed and flows into the injection tube orifice.

[0008] 3. When the lead slurry is squeezed and flows into the cantilever nozzle of the injection and lead tube, servo motor II 33 stops, the extrusion rod stops moving rightward, and servo motor I 24 starts to drive the cookie frame drive plate 19 and cookie frame connecting rod 18 to the right, causing the cookie frame, which is fixed to the other end of the cookie frame connecting rod, to move rightward along with the firecracker cake 37. As the firecracker cake moves rightward (equivalent to the cantilever nozzle of the injection and lead tube moving away from the mud bottom end of the paper tube), the lead slurry in the injection and lead tube, under the pressure of the extrusion rod, flows synchronously along the inner wall of the paper tube to form the lead. Then, servo motor I 24 reverses, driving the cookie frame drive plate 19 and cookie frame connecting rod 18 to move leftward and back to their original position. Servo motor II 33 is then started to reverse, separating the extrusion rod from the drive screw II, and the elastic material basin returns to its original state. The one-way valve opens, and the lead slurry flows into the drug storage chamber again.

[0009] Beneficial effects of the utility model

[0010] 1. Compared with the existing injection and lead machine, the utility model has a simpler and more compact structure, smoother and more flexible movement, and can complete the charging and insertion of firecracker cakes. It not only saves the injection and lead needle materials and manufacturing time, reduces the cost, but also avoids the safety accidents caused by the production of fuses, improves the safety of firecracker production, and improves the working environment.

[0011] The fuse injected by the utility model is more accurate, flat and complete, and has uniform size, and will not cause problems such as fuse breakage, folding, loose wire, falling and powder leakage, thereby improving the quality of firecracker fuse insertion and powder charging;

[0012] 3. The utility model eliminates the difficult-to-process injection needle (or plunger), saves materials, reduces processing costs, shortens injection time, firecracker insertion and charging time, improves firecracker insertion and charging efficiency, and reduces firecracker production costs;

[0013] 4. This utility model is suitable for injecting and drawing hexagonal firecracker cakes, and can also be used for injecting and drawing round firecracker cakes or fireworks cakes;

[0014] 5. The utility model has a compact structure, is easy to manufacture and maintain, is easy to operate, occupies a small area, and can form an integrated production line for firecracker injection and introduction, which is conducive to the large-scale production of firecrackers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model.

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of the local structure of XX,

[0017] Figure 3 yes Figure 1 The enlarged schematic diagram of the C-direction structure,

[0018] Figure 4 yes Figure 1 AA cross-sectional structural diagram,

[0019] Figure 5 It is another structural schematic diagram of the medicine storage chamber of the utility model.

[0020] In the figure, 1, lead slurry tank 2, injection and lead pipe mounting plate 3, one-way valve 4, hanging plate 5, medicine inlet pipe support plate 6, extrusion rod 7, hollow guide column 8, extrusion guide plate 9, medicine basin 10, medicine chamber 11, medicine chamber plate 12, injection and lead pipe 13, lead 14, paper tube 15, mud bottom 16, extrusion rod drive plate 17, cookie rack drive plate 18, cookie rack connecting rod 19, cookie rack connecting plate 20, drive screw I 21, driving gear 22, bottom plate 23, frame 24, servo motor I 25, drive screw II 26, cake rack 27, clamping positioning block 28, column plate 29, driven gear 30, medicine feed pipe 31, fastening screw 32, support bar 33, servo motor II 34, swing plate 35, plug plate 36, pin 37, firecracker cake 38, clamping cylinder 39, ventilation pipe 40, medicine storage chamber 41, inner splint 42, outer splint. DETAILED DESCRIPTION

[0021] In the figure, a direct extrusion firecracker injection machine is shown, which includes a frame 23 and four hollow guide columns 7 connected in a square shape and supported on a bottom plate 22, which are arranged from left to right in sequence: a cookie rack drive plate 17, an extrusion rod drive plate 16, an extrusion guide plate 8, a medicine feed tube support plate 5 and an injection tube mounting plate 2. A cookie rack connecting rod 18 is movably provided in the hollow guide column, one end of the cookie rack connecting rod is fixedly connected to a cookie rack linkage plate 19, and the other end is fixedly connected to a cookie rack 26 that can clamp and position the firecracker cake 37. A servo motor Ⅰ 24 is provided on the cookie rack drive plate 17, and the servo motor Ⅰ is connected to the cookie rack linkage plate 19 through a driving screw Ⅰ 20. The cookie rack linkage plate moves left and right under external force and drives the cookie rack to move left and right through the cookie rack connecting rod. A medicine cavity plate 11 with a medicine cavity 10 in the middle is provided between the medicine feed pipe support plate 5 and the injection and guide pipe mounting plate. The medicine cavity is made of plastic or organic materials. The shape of the medicine cavity corresponds to the shape of the firecracker cake (a regular hexagon). Injection and guide pipes 12 corresponding to the number and position of the paper tubes 14 on the firecracker cake 37 are provided on the injection and guide pipe mounting plate. The inner hole of the injection and guide pipe is slightly larger than the required lead wire diameter. One end of the injection and guide pipe is fixed to the injection and guide pipe mounting plate and is communicated with the medicine cavity 10. The other end extends out of the injection and guide pipe mounting plate into a cantilever shape. A fastening screw 31 is fixed on one side of the medicine feed pipe support plate with a suspension plate 4 spaced parallel to the medicine feed pipe support plate. An elastic medicine basin 9 (made of a rubber leather bowl) is fixed on one side of the suspension plate. The medicine basin can also be made into a metal bowl-shaped medicine basin (such as Figure 5As shown), one end of the extrusion rod extends into the middle of the metal medicine basin (equivalent to the piston rod) to press the lead slurry in the medicine storage chamber into the medicine feed pipe. A medicine storage chamber 40 is formed between the medicine basin and the hanging plate. The medicine basin is connected to the lead slurry tank 1 through a pipe fixed to the hanging plate (not shown in the figure) and a one-way valve 3. The lead slurry tank 1 is provided with a cleaning and drainage pipe. A medicine feed pipe 30 with two ends communicating with the medicine storage chamber and the medicine distribution cavity respectively is provided between the hanging plate and the medicine feed pipe support plate. An extrusion rod 6 is movably provided on the extrusion guide plate 8. One end of the extrusion rod is connected to the inner and outer splints 41 and 42 and the screw. The elastic medicine basin (bottom surface) between the plates is fixedly connected, and the other end can be coaxial with the drive screw Ⅱ25 provided on the extrusion rod drive plate 16 and can be attached to it. The other end of the drive screw Ⅱ is engaged with the driving gear 21 through the driven gear 29. The driving gear is fixed to the column plate 28, and the column plate is connected to the extrusion rod drive plate with a screw. The servo motor Ⅱ33 is fixed to the column plate and connected to the driving gear. The elastic medicine basin contracts under the extrusion action of the extrusion rod and can cause the lead slurry in the drug storage chamber to enter the drug distribution chamber through the drug feed pipe and then enter the injection pipe 12 for injection. After hardening, the injection becomes the lead 13. The injection tube mounting plate is equipped with injection tubes 12, corresponding in number and position to the paper tubes 14 on the firecracker cakes. One end of the injection tube extends into and is fixed to the injection tube mounting plate 2, while the other end extends outside the injection tube mounting plate in a cantilevered manner. The powder in the injection tube enters the paper tube 14 with a mud bottom 15 under the action of a squeeze rod, forming a linear lead 13. The lower end of the cake clamping frame 26 is connected to a plug plate 35, which is movably mounted in a slot in a swing plate 34. The swing plate has one end movably mounted on the frame by a pin 36, and the other end is cantilevered. Hexagonal clamping blocks 27 are mounted within the cake clamping frame 26, supporting the firecracker cakes 37. Each clamping block is connected to a clamping cylinder 38, which is connected to an air supply via a vent pipe 39 and a pipe joint for synchronous operation. In order to enable the firecracker cake to be moved out in parallel after being injected, support strips 32 (support strip width 1-1.5 mm) are vertically spaced in the cavity in the middle of the cake holder. The middle paper tube on the firecracker cake can be moved out synchronously with the paper tubes on the sides under the support of the support strips.

[0022] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to specific embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should all be included in the scope of protection of the claims of the present invention.

Claims

1. A direct extrusion firecracker injection machine, comprising a cookie frame drive plate (17) arranged on a frame (23) and connected with a hollow guide column (7) and supported on a bottom plate (22), an extrusion rod drive plate (16), an extrusion guide plate (8), a medicine feed pipe support plate (5) and an injection pipe mounting plate (2), the bottom plate being arranged horizontally on the frame, a cookie frame connecting rod (18) being movably arranged in the hollow guide column, one end of the cookie frame connecting rod being fixedly connected to a cookie frame linkage plate (19), and the other end being fixedly connected to a cookie frame (26) capable of clamping and positioning firecracker cakes, the cookie frame linkage plate moving left and right under external force and driving the cookie frame to move left and right through the cookie frame connecting rod, wherein: A medicine cavity plate (11) having a medicine cavity (10) in the middle is provided between the medicine feed pipe support plate and the injection and guide pipe mounting plate. The shape of the medicine cavity corresponds to the shape of the firecracker cake. An injection and guide pipe (12) corresponding to the number and position of the paper tubes on the firecracker cake is provided on the injection and guide pipe mounting plate. One end of the injection and guide pipe is fixed on the injection and guide pipe mounting plate and communicates with the medicine cavity. The other end extends out of the injection and guide pipe mounting plate to form a cantilever shape. A hanging plate (4) is fixed on one side of the medicine feed pipe support plate. An elastic medicine basin (9) is fixed on one side of the hanging plate. A space is formed between the elastic medicine basin and the hanging plate. A medicine storage chamber (40) is provided between a hanging plate and a medicine feed pipe support plate, wherein two ends of the medicine storage chamber and the medicine dispensing cavity are communicated with the medicine storage chamber and the medicine dispensing cavity respectively. An extrusion rod (6) is movably provided on the extrusion guide plate. One end of the extrusion rod is fixedly connected to the medicine material basin, and the other end can be attached to a driving screw rod II (25) provided on an extrusion rod driving plate (16). The other end of the driving screw rod II is connected to a servo motor II (33) through gear meshing. The medicine material basin contracts under the extrusion action of the extrusion rod and can make the lead slurry in the medicine storage chamber enter the medicine dispensing cavity through the medicine feed pipe and then enter the injection pipe for injection.

2. A direct extrusion firecracker injection machine according to claim 1, characterized in that: The medicine basin (9) is made into a metal bowl shape.

3. A direct extrusion firecracker injection machine according to claim 1, characterized in that: Support bars (32) are vertically spaced apart in the cavity in the middle of the pancake rack (26).

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