A safety door for a fireworks sparkling pellet granulator

Abstract

This utility model discloses a safety door for a fireworks sparkling bead granulation machine, comprising a movable plate for conveying fireworks sparkling bead raw materials, a first driving cylinder for driving the movable plate, and a fixed frame for mounting the movable plate. A pair of guide grooves are provided on opposite sides of the lower part of the fixed frame, and the movable plate is slidably connected to the fixed frame through the guide grooves. The movable plate moves linearly back and forth along the guide grooves under the action of the first driving cylinder. A conveying channel is provided on the upper part of the movable plate, which connects to the fireworks sparkling bead raw material conveying components located on both sides during material conveying. This utility model's safety door has a simple structure. The movable plate of the safety door can quickly and completely isolate the channel connection at both ends of the explosion-proof wall, isolating the extension of safety accidents on both sides of the explosion-proof wall. Furthermore, the conveying channel of the movable plate of the safety door can achieve precise delivery of the drug, ensuring smooth drug delivery and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to a safety door for a fireworks sparkling pelletizing machine. Background Technology

[0002] In the fireworks manufacturing process, many work areas are separated by explosion-proof walls according to safety requirements. Material transfer between these work areas is achieved through openings in the explosion-proof walls. This type of conveying system poses a significant safety hazard. If an explosion occurs in the fireworks production equipment in one work area, the flames can ignite the conveying device or the chemicals on it, rapidly spreading to other work areas. Furthermore, the blast wave can penetrate the openings in the explosion-proof walls and injure personnel in safe areas. Such accidents are not uncommon. CN 205892194 U discloses a safety interlock explosion-proof device, which includes a hopper conveying mechanism, an explosion-proof door interlocking opening and closing mechanism, a door locking mechanism, and a controller. Under the control of the controller, the hopper conveying mechanism, along with the opening and closing of the explosion-proof door interlocking opening and closing mechanism and the door locking mechanism, facilitates the conveying of bright beads. This explosion-proof device has a complex structure, cannot achieve the necessary chemical transfer in the bright bead production line, and is prone to causing safety accidents. Summary of the Invention

[0003] The main objective of this invention is to address the aforementioned shortcomings of existing technologies by providing a safety door for a fireworks sparkler granulator. The technical solution of this invention is as follows:

[0004] A safety gate for a fireworks sparkler granulator includes a movable plate for conveying fireworks sparkler raw materials, a first drive cylinder for driving the movable plate, and a fixed frame for mounting the movable plate. A pair of guide grooves are provided on opposite sides of the lower part of the fixed frame, and the movable plate is slidably connected to the fixed frame through the guide grooves. The movable plate moves linearly back and forth along the guide grooves under the action of the first drive cylinder. A conveying channel is provided on the upper part of the movable plate, and when material is being conveyed, the conveying channel connects to fireworks sparkler raw material conveying components located on both sides of it.

[0005] Furthermore, the conveying channel includes a first arc-shaped plate, a second arc-shaped plate, and a second and a third driving cylinder for driving the first and second arc-shaped plates. The two ends of the first and second arc-shaped plates are respectively connected to the piston rods of the second and third driving cylinders. The first and second arc-shaped plates can move away from each other, move closer together, or overlap under the drive of the second and third driving cylinders. When the second and third driving cylinders drive the first and second arc-shaped plates away from each other, the conveying channel connects with the firework bead raw material conveying components located on both sides of it. When the second and third driving cylinders drive the first and second arc-shaped plates closer together or overlap, the conveying channel disconnects from the firework bead raw material conveying components located on both sides of it.

[0006] Preferably, an anti-static partition is provided between the first arc-shaped plate and the second arc-shaped plate.

[0007] Preferably, at least one magnetic switch is provided on each of the second and third drive cylinders.

[0008] Preferably, it further includes a first fixing plate and a second fixing plate installed at the lower part of the fixing frame. The first fixing plate and the second fixing plate are arranged in parallel to each other. The pair of guide grooves are respectively installed at the inner ends of the first fixing plate and the second fixing plate and connect the first fixing plate and the second fixing plate. The movable plate is disposed between the first fixing plate and the second fixing plate and is embedded in the guide groove.

[0009] Preferably, a bracket is provided at the lower part of the fixing frame to support the fixing frame.

[0010] Preferably, a steel plate is provided on the side of the fixing frame near the explosion-proof wall to seal the opening in the explosion-proof wall; the steel plate has holes for the conveying component of the fireworks sparkler to pass through; the guide groove is fixedly installed on the steel plate.

[0011] Preferably, at least one magnetic switch is provided on the first drive cylinder.

[0012] Preferably, the movable plate is fixedly connected to the first drive cylinder via a first drive cylinder bracket.

[0013] The technical effects of this utility model are as follows: The safety door of this utility model has a simple structure. The movable plate of the safety door can quickly and completely isolate the channels at both ends of the explosion-proof wall, isolate the extension of safety accidents on both sides of the explosion-proof wall, and the conveying channel of the movable plate of the safety door can accurately convey drugs, ensure smooth drug delivery, and improve production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the safety door structure of the fireworks sparkling bead granulator;

[0015] Figure 2 This is a structural diagram of the front left side of the safety door of the fireworks sparkling pellet granulator (without the fixing frame);

[0016] Figure 3 This is a structural schematic diagram of the safety door conveyor channel of the fireworks sparkling bead granulator from another angle;

[0017] Figure 4 This is a schematic diagram of the structure of the first and second arc-shaped plates of the safety door of the fireworks sparkling bead granulator;

[0018] Figure 5This is a schematic diagram of the safety gate of the fireworks sparkler granulator during the transmission of the raw material mixture.

[0019] In the diagram: 1. Fixed frame; 2. Movable plate; 3. First drive cylinder; 4. Guide groove; 5. Conveying channel; 6. First arc plate; 7. Second arc plate; 8. Second drive cylinder; 9. Third drive cylinder; 10. Antistatic partition; 11. First fixed plate; 12. Fixed frame bracket; 13. Conveying pipe; 14. Feed pipe; 15. Plate handle; 16. Feed pipe U-shaped opening; 17. First drive cylinder bracket; 18. Second fixed plate. Detailed Implementation

[0020] The following are specific embodiments of the present invention. The technical solution of this application will be further described in a complete and clear manner with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figure 1-5 The safety door of the fireworks sparkling granulator in this embodiment includes a fixed frame 1, a movable plate 2, and a first driving cylinder 3 for driving the movable plate 2. The first driving cylinder 3 is fixedly connected to the movable plate 2 through a first driving cylinder bracket 17. The lower part of the fixed frame 1 is fixedly installed with screws to the corresponding parallel first fixed plate 11 and second fixed plate 18. A pair of guide grooves 4 are respectively installed at the inner ends of the first fixed plate 11 and the second fixed plate 18, connecting the first fixed plate 11 and the second fixed plate 18. The movable plate 2 is located between the first fixed plate 11 and the second fixed plate 18. The movable plate 2 is vertically embedded in the pair of guide grooves 4. The piston rod of the first driving cylinder 3 is connected to the upper support rod of the first driving cylinder bracket 17. The lower part of the first driving cylinder bracket 17 is fixed on the movable plate 2. Under the action of the first driving cylinder 3, the movable plate 2 moves back and forth in a straight line along the vertical direction fixed by the pair of guide grooves 4. The length of the guide grooves 4 can be greater than the vertical length of the first fixed plate 11 and the second fixed plate 18.

[0022] A conveying channel 5 is provided on the upper part of the movable plate 2. The conveying channel 5 includes a first arc-shaped plate 6 and a second arc-shaped plate 7. The first arc-shaped plate 6 is positioned above the second arc-shaped plate 7, and plate handles 15 are provided at both ends of the first arc-shaped plate 6 and the second arc-shaped plate 7. The second driving cylinder 8 and the third driving cylinder 9 are respectively installed at the left and right ends of the first arc-shaped plate 6 and the second arc-shaped plate 7. The second driving cylinder 8 and the third driving cylinder 9 are double-rod cylinders, that is, the piston rods of the driving cylinders can act in both directions. Screw holes are provided on the plate handles 15 of the first arc-shaped plate 6 and the second arc-shaped plate 7 to facilitate the fixing of the first arc-shaped plate 6 and the second arc-shaped plate 7 to the front end cover plates of the piston rods of the second driving cylinder 8 and the third driving cylinder 9. The second driving cylinder 8 and the third driving cylinder 9 can be fixedly connected to the movable plate 2 or fixed by a separate frame.

[0023] The first arc-shaped plate 6 and the second arc-shaped plate 7 are connected at both ends to the second driving cylinder 8 and the third driving cylinder 9. Driven by the second driving cylinder 8 and the third driving cylinder 9, the first arc-shaped plate 6 and the second arc-shaped plate 7 move outward relative to each other as the piston rod extends, and move inward relative to each other as the piston rod retracts. That is, when the piston rod extends, the first arc-shaped plate 6 and the second arc-shaped plate 7 are in an open state, and when the piston rod retracts, the first arc-shaped plate 6 and the second arc-shaped plate 7 are in a closed and overlapping state. When the first arc-shaped plate 6 and the second arc-shaped plate 7 are in an open state, there is an overlap between them. This overlap is to form a conveying channel 5 between the first arc-shaped plate 6 and the second arc-shaped plate 7. When conveying materials, the conveying channel 5 is connected to the firework bright bead raw material conveying components located on both sides of it, namely the conveying pipe 13 and the feeding pipe 14 mentioned below.

[0024] To prevent static electricity from being generated when the first arc plate 6 and the second arc plate 7 move out of alignment, an anti-static partition 10 is provided between the first arc plate 6 and the second arc plate 7. The anti-static partition 10 is installed at the bottom of the first arc plate 6.

[0025] To coordinate with the main controller intelligent computer of the fireworks sparkling pellet granulator, a magnetic switch (not shown in the figure) is fixed to each of the first drive cylinder 3, the second drive cylinder 8, and the third drive cylinder 9 with a fixing ring. Each magnetic switch provides real-time feedback of the piston stroke endpoint or intermediate point signal of the first drive cylinder 3, the second drive cylinder 8, and the third drive cylinder 9. The main controller intelligent computer of the fireworks sparkling pellet granulator controls the solenoid valve based on these signals fed back by the magnetic switches, realizing precise control of the first drive cylinder 3, the second drive cylinder 8, and the third drive cylinder 9, ensuring the normal operation of the safety door and the smooth flow of the conveying channel, and ensuring production efficiency.

[0026] In actual production, during workshop design and equipment installation, the fixing frame 1 is installed inside the explosion-proof wall (not shown in the figure), the conveying pipe 13 extends out of the explosion-proof wall opening, and the feed pipe 14 is installed on the other side of the explosion-proof wall. During the production of fireworks sparklers, when the mixture of sparkler granules is conveyed from the conveying pipe 13, the piston rod of the first drive cylinder 3 extends downward, and the movable plate 2 connected to the piston rod of the first drive cylinder 3 moves downward to the lower part of the conveying pipe 13. The piston rods of the second drive cylinder 8 and the third drive cylinder 9 extend in both directions. The first arc plate 6 and the second arc plate 7, which are connected to the piston rods, move away from each other and move outward. The first arc plate 6 and the second arc plate 7 are in an open state to form a spacious conveying channel 5. One side of the conveying channel 5 is aligned with the lower edge of the discharge port of the conveying pipe 13 and is connected to the discharge port of the conveying pipe 13. The inlet of the feed pipe 14 is set in a U-shape, and the U-shaped opening 16 of the feed pipe extends into the bottom of the conveying channel 5. The other side of the conveying channel 5 is connected to the feed pipe 14. The conveying pipe 13, conveying channel 5, and feed pipe 14 form a stepped conveying channel from top to bottom. Each of these three pipes is in close contact with the others, ensuring that the bright bead granule raw material mixture is conveyed from the conveying pipe 13 through the conveying channel 5 to the feed pipe 14. The cross-section of the conveying channel 5 is larger than the diameter of the conveying pipe 13, ensuring that the bright bead granule raw material mixture fed from the conveying pipe 13 falls completely into the conveying channel 5 without leakage. The relative movement of the first arc plate 6 and the second arc plate 7 increases the area of ​​the conveying channel 5 while ensuring close contact with the conveying pipe 13 and feed pipe 14. This facilitates quick and accurate conveying of the bright bead granule raw material mixture. Furthermore, after the raw material conveying is completed, the first arc plate 6 and the second arc plate 7 can move relative to each other and overlap with the movable plate 2 to form a unified, isolated safety gate.

[0027] After the bright bead granule raw material mixture is conveyed, the piston rods of the second drive cylinder 8 and the third drive cylinder 9 retract, the first arc plate 6 and the second arc plate 7 move inward and overlap, the piston rod of the first drive cylinder 3 moves upward, and the movable plate 2 connected to the piston rod of the first drive cylinder 3 moves upward to seal the opening of the conveying pipe 13, forming a safety door, which blocks the conveying connection between the two workshops. The bright bead granule raw material mixture is fed into the bright bead granulation tank through the feed pipe 14 for granulation.

[0028] In actual production, depending on the requirements of different workshops and equipment, a support bracket 12 can be installed at the bottom of the fixed frame 1 for support. An additional panel can be fixed to the top of the first arc-shaped plate 6 and the second arc-shaped plate 7 to widen and increase the conveying area of ​​the conveying channel 5. Depending on the size of the wall opening in the explosion-proof wall and the specific construction conditions, a steel plate (not shown in the figure) can be installed near the explosion-proof wall to seal the wall opening. Holes are made in the steel plate to allow the conveying pipe 13 to pass through and connect movably with the conveying channel 5. After the steel plate is installed, the guide trough 4 can be fixedly installed on the steel plate, and the first fixing plate 11 and the second fixing plate 18 are correspondingly fixedly installed on the steel plate.

[0029] The above are merely preferred embodiments of this utility model, and are implementations based on the overall concept of this utility model. Furthermore, the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims. The terms left and right, up and down, beginning and end, and inside and outside described in this specification refer to the relative positions of the various structures. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0030] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A safety door for a fireworks sparkling bead granulator, characterized in that, The device includes a movable plate for conveying raw materials for fireworks sparklers, a first drive cylinder for driving the movable plate, and a fixed frame for mounting the movable plate. A pair of guide grooves are provided on opposite sides of the lower part of the fixed frame, and the movable plate is slidably connected to the fixed frame through the guide grooves. The movable plate moves back and forth linearly along the guide grooves under the action of the first drive cylinder. A conveying channel is provided on the upper part of the movable plate, and when material is conveyed, the conveying channel connects to the raw material conveying components for fireworks sparklers located on both sides of it.

2. The safety door of the fireworks sparkling bead granulator according to claim 1, characterized in that, The conveying channel includes a first arc-shaped plate, a second arc-shaped plate, and a second and a third driving cylinder for driving the first and second arc-shaped plates. The two ends of the first and second arc-shaped plates are respectively connected to the piston rods of the second and third driving cylinders. Driven by the second and third driving cylinders, the first and second arc-shaped plates can move away from each other, move closer together, or overlap. When the second and third driving cylinders drive the first and second arc-shaped plates away from each other, the conveying channel connects with the firework bead raw material conveying components located on both sides of it. When the second and third driving cylinders drive the first and second arc-shaped plates closer together or overlap, the conveying channel disconnects from the firework bead raw material conveying components located on both sides of it.

3. The safety door of the fireworks sparkling bead granulator according to claim 2, characterized in that, An anti-static partition is provided between the first arc-shaped plate and the second arc-shaped plate.

4. The safety door of the fireworks sparkling bead granulator according to claim 2, characterized in that, At least one magnetic switch is provided on each of the second and third drive cylinders.

5. The safety door of the fireworks sparkling bead granulator according to claim 1, characterized in that, It also includes a first fixing plate and a second fixing plate installed at the lower part of the fixing frame. The first fixing plate and the second fixing plate are arranged in parallel to each other. A pair of guide grooves are respectively installed at the inner ends of the first fixing plate and the second fixing plate and connect the first fixing plate and the second fixing plate. The movable plate is located between the first fixing plate and the second fixing plate and is embedded in the guide groove.

6. The safety door of the fireworks sparkling bead granulator according to claim 1, characterized in that, A bracket is provided at the lower part of the fixed frame to support the fixed frame.

7. The safety door of the fireworks sparkling bead granulator according to claim 1, characterized in that, The fixing frame is provided with a steel plate on the side near the explosion-proof wall to seal the opening in the explosion-proof wall; the steel plate has holes for the conveying parts for the fireworks sparklers to pass through; the guide groove is fixedly installed on the steel plate.

8. The safety door of the fireworks sparkling bead granulator according to claim 1, characterized in that, At least one magnetic switch is provided on the first drive cylinder.

9. The safety door of a fireworks sparkling bead granulator according to claim 1, characterized in that, The movable plate is fixedly connected to the first drive cylinder via a first drive cylinder bracket.

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