Raw material grinding device for firecracker production

Abstract

The utility model relates to the field of firecracker production, in particular to a raw material grinding device for firecracker production. The technical problems that according to an existing powder grinding device, charcoal is directly discharged after primary grinding, raw materials are not evenly ground, dust generated during grinding and discharging easily overflows through a feeding hopper and a discharging opening, and the environmental protection property is low are solved. A raw material grinding device for firecracker production comprises a bottom frame, a protection frame fixedly connected to the bottom frame, a machine frame fixedly connected to the bottom frame, a first material guide frame fixedly connected to the machine frame, a second material guide frame fixedly connected to the machine frame, a grinding mechanism arranged on the machine frame and a dust isolation mechanism arranged on the machine frame. A charcoal raw material is subjected to primary grinding through the two coarse grinding rollers, the charcoal raw material subjected to primary grinding falls downwards, the charcoal raw material falling downwards is guided to the position between the two fine grinding rollers through the first material guide frame and the second material guide frame, the raw material is subjected to secondary grinding through the two fine grinding rollers, the raw material can be subjected to multi-stage grinding, and the raw material is ground more uniformly.

Description

Technical Field

[0001] This utility model relates to the field of firecracker production, and in particular to a raw material grinding device for firecracker production. Background Technology

[0002] In the production of fireworks, raw materials such as saltpeter, sulfur, and charcoal used to make primers need to be ground into powder and then mixed in a specific ratio to form gunpowder powder. This allows the various raw materials to burn more evenly, thereby achieving a better ignition effect.

[0003] Existing firecracker raw material grinding equipment typically uses roller or toothed crushers to grind charcoal into powder. During operation, workers feed the charcoal into the crushing mechanism through the feed hopper, and the charcoal is usually discharged directly after one grinding cycle. This results in uneven grinding of the raw materials. Furthermore, the feed hopper and discharge port of most existing grinding equipment are directly connected to the air, and the dust generated during grinding and discharge can easily overflow through the feed hopper and discharge port, causing dust pollution and resulting in low environmental performance. Utility Model Content

[0004] To overcome the shortcomings of existing grinding devices that directly output charcoal after a single grinding, resulting in uneven grinding of raw materials and dust overflowing from the feed hopper and discharge port during grinding and discharge, leading to low environmental performance, this utility model provides a raw material grinding device for firecracker production that can perform multi-stage grinding of raw materials, making the grinding more uniform and reducing dust overflow during the grinding process and discharge, thereby improving environmental performance.

[0005] The technical solution of this utility model is: a raw material grinding device for firecracker production, including a base frame, a protective frame fixedly connected to the base frame, the protective frame having openings on both sides, a machine frame fixedly connected to the base frame, the top of the machine frame being open, a first guide frame fixedly connected to the machine frame, a second guide frame fixedly connected to the machine frame, a grinding mechanism on the machine frame, and a dust isolation mechanism on the machine frame.

[0006] Furthermore, the grinding mechanism includes a servo motor 1, two servo motors 1 fixedly connected to the frame, two coarse grinding rollers rotatably connected to the frame, a transmission component 1 between the servo motor 1 and the coarse grinding rollers, two servo motors 2 fixedly connected to the frame, two fine grinding rollers rotatably connected to the frame, and a transmission component 2 between the servo motors 2 and the fine grinding rollers.

[0007] Furthermore, the transmission assembly includes a drive wheel, a driven wheel, and a transmission belt. The output shafts of the two servo motors are each fixedly connected to the drive wheel, and one end of each of the two rough grinding rollers is fixedly connected to the driven wheel. A transmission belt is wound between the drive wheel and the driven wheel.

[0008] Furthermore, the transmission assembly 2 includes a driving wheel 2, a driven wheel 2, and a transmission belt 2. The driving wheel 2 is fixedly connected to the output shaft of each of the two servo motors 2, and the driven wheel 2 is fixedly connected to one end of each of the two rough grinding rollers. The transmission belt 2 is wound between the driving wheel 2 and the driven wheel 2.

[0009] Furthermore, the dust-proof mechanism includes a feeding hopper, which is fixedly connected to the frame. A dust-proof frame is rotatably connected to the feeding hopper. Two torsion springs are provided between the dust-proof frame and the feeding hopper. A collection box is slidably connected to the frame. A collection port is opened on the top of the collection box. A limit frame is slidably connected to the frame. The limit frame is made of iron. A magnet is fixedly connected to one side of the collection box.

[0010] Furthermore, it also includes a rake mechanism. The frame is equipped with a rake mechanism, which is used to rake and disperse the raw material between the two fine grinding rollers. The rake mechanism includes electric push rods. Two electric push rods are fixedly connected to the frame. Both electric push rods are fixedly connected to the protective frame. The extension rods of the two electric push rods are fixedly connected to the rake frame.

[0011] The beneficial effects of this utility model are: 1. The charcoal raw material falls between two coarse grinding rollers through the feed hopper. The two coarse grinding rollers perform primary grinding on the charcoal raw material. The charcoal raw material after primary grinding falls downward under the action of gravity. The first guide frame and the second guide frame guide the falling charcoal raw material between two fine grinding rollers. The two fine grinding rollers perform secondary grinding on the raw material. This allows for multi-stage grinding of the raw material, making the raw material more uniformly ground.

[0012] 2. After the charcoal raw material is separated from the dust-proof frame, the torsion spring rebounds and drives the dust-proof frame to rotate in the opposite direction to cover the feed inlet of the feed hopper again. When discharging, the staff pulls out the collection box, which moves the limit frame through the magnet. The limit frame covers the position between the bottom of the first guide frame and the second guide frame, which can reduce the dust overflowing during the raw material grinding process and during discharge, thus improving environmental protection.

[0013] 3. By controlling the extension and retraction of the telescopic rods of the two electric push rods, the two electric push rods drive the two rake frames to perform reciprocating horizontal movements. The two rake frames intermittently rake and disperse the raw materials that fall between the two fine grinding rollers, reducing the chance of the raw materials accumulating in one place between the two fine grinding rollers and increasing the grinding time, thus improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the grinding mechanism of this utility model.

[0016] Figure 3This is a three-dimensional structural diagram showing the disassembled components of the feed hopper, dust collector, and torsion spring of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the grinding mechanism and dust-proof mechanism of this utility model.

[0018] Figure 5 This is a cross-sectional perspective view of the grinding mechanism and dust-proofing mechanism of this utility model.

[0019] Figure 6 This is a cross-sectional three-dimensional structural diagram of the dust-separating mechanism and the rake-scattering mechanism of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram showing the disassembled material guide frame 1, material guide frame 2, and dust-proof mechanism of this utility model.

[0021] In the attached diagram, the following are the reference numerals: 1_base frame, 2_protective frame, 3_machine frame, 4_guide frame one, 5_guide frame two, 6_servo motor one, 7_coarse grinding roller, 8_transmission assembly one, 9_servo motor two, 10_fine grinding roller, 11_transmission assembly two, 12_feed hopper, 13_dust separator frame, 14_torsion spring, 15_collection box, 16_limiting frame, 17_magnet, 18_electric push rod, 19_rake frame. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: A raw material grinding device for firecracker production, such as... Figures 1-7 As shown, it includes a base frame 1, and a protective frame 2 is bolted to the top of the base frame 1. The protective frame 2 has openings on both sides. A machine frame 3 is fixed to the top of the base frame 1. The top of the machine frame 3 is open. A guide frame 1 4 and a guide frame 2 5 are fixed to the inner wall of the machine frame 3. The guide frame 1 4 and the guide frame 2 5 are used to guide the raw material after primary grinding. A grinding mechanism and a dust-proofing mechanism are provided on the machine frame 3. The grinding mechanism is used to grind the raw material, and the dust-proofing mechanism is used to reduce the dust overflowing during the grinding process and during discharge.

[0024] The grinding mechanism includes a servo motor 6, two servo motors 6 are fixedly connected to the frame 3, and two coarse grinding rollers 7 are rotatably connected to the frame 3. The two coarse grinding rollers 7 are symmetrically arranged, and the grinding teeth on the two coarse grinding rollers 7 are staggered. A transmission component 8 is provided between the servo motor 6 and the coarse grinding rollers 7. The servo motor 6 drives the coarse grinding rollers 7 to rotate through the transmission component 8, thereby performing primary crushing of the charcoal raw material. Two servo motors 9 are fixedly connected to the frame 3, and two fine grinding rollers 10 are rotatably connected to the frame 3. The grinding teeth on the two fine grinding rollers 10 are staggered. The fine grinding rollers 10 are located below the coarse grinding rollers 7 and between the guide frame 4 and the guide frame 5. A transmission component 11 is provided between the servo motor 9 and the fine grinding rollers 10. The servo motor 9 drives the fine grinding rollers 10 to rotate through the transmission component 11, thereby performing secondary crushing of the charcoal raw material.

[0025] The transmission assembly 8 includes a drive wheel, a driven wheel, and a transmission belt. The output shafts of the two servo motors 6 are each fixedly connected to the drive wheel, and one end of each of the two coarse grinding rollers 7 is fixedly connected to the driven wheel. A transmission belt is wound between the drive wheel and the driven wheel.

[0026] The transmission assembly 21 includes a driving wheel 2, a driven wheel 2 and a transmission belt 2. The driving wheel 2 is fixedly connected to the output shaft of each of the two servo motors 2 9. The driven wheel 2 is fixedly connected to one end of each of the two coarse grinding rollers 7. The transmission belt 2 is wound between the driving wheel 2 and the driven wheel 2.

[0027] The dust-proof mechanism includes a feed hopper 12, which is fixedly connected to the top of the frame 3 and communicates with the frame 3. A dust-proof frame 13 is rotatably connected to the feed inlet of the feed hopper 12, covering the feed inlet of the feed hopper 12. The dust-proof frame 13 is used to isolate upward-blowing dust during crushing. Two torsion springs 14 are provided between the dust-proof frame 13 and the feed hopper 12, and the two torsion springs 14 are symmetrically arranged. A collection box 15 is slidably connected to the lower part of the frame 3, and the top of the collection box 15... The collection box 15 has a collection port located between the bottom of the first guide frame 4 and the second guide frame 5. The raw material powder after secondary crushing falls into the collection box 15 through the gap between the first guide frame 4 and the second guide frame 5. The lower part of the frame 3 is slidably connected to the limit frame 16, which is made of iron. A magnet 17 is fixed to one side of the collection box 15. The magnet 17 contacts the limit frame 16. The collection box 15 moves the limit frame 16 through the magnet 17, thereby covering the gap between the bottom of the first guide frame 4 and the second guide frame 5.

[0028] Initially, magnet 17 contacts the limiting frame 16, attracting it. After operation begins, the operator starts two servo motors 6 and 9. Servo motor 6 drives two coarse grinding rollers 7 to rotate at a constant speed towards each other, while servo motor 9 drives two fine grinding rollers 10 to rotate at a constant speed towards each other. Then, the operator pushes the charcoal raw material into the feed hopper 12. The charcoal raw material pushes open the dust separator 13, causing the torsion spring 14 to twist, thus separating the dust. The frame 13 no longer obstructs the feed inlet of the feed hopper 12. The charcoal raw material falls between the two coarse grinding rollers 7 through the guide of the feed hopper 12. The two coarse grinding rollers 7 perform primary grinding on the charcoal raw material. The charcoal raw material, after primary grinding, falls downwards under gravity. The guide frames 1 and 2 guide frames 5 guide the falling charcoal raw material between the two fine grinding rollers 10. The two fine grinding rollers 10 perform secondary grinding on the raw material. Through the above operations, the raw material can be ground in multiple stages, making the grinding more uniform. The charcoal raw material and the dust-proof frame 13... After the contact is broken, the torsion spring 14 rebounds and drives the dust cover frame 13 to rotate in the opposite direction, once again covering the feed inlet of the feed hopper 12. The raw material after secondary grinding falls into the collection box 15 under the action of gravity. When discharging, the operator turns off servo motor 16 and servo motor 29, pulls out the collection box 15, and the collection box 15 moves the limiting frame 16 through magnet 17. The limiting frame 16 covers the position between the bottom of the guide frame 14 and the guide frame 25. Through the above operation, the external force during the raw material grinding process and during discharge can be reduced. To reduce dust and improve environmental friendliness, magnet 17 continues to move and disengages from limit frame 16. The worker removes the raw material from collection box 15 and pushes it back into frame 3. Collection box 15 moves in the opposite direction, causing magnet 17 to move in the opposite direction. Magnet 17 re-attracts limit frame 16 and causes limit frame 16 to move in the opposite direction. Limit frame 16 no longer covers the position between the bottom of guide frame 1 4 and guide frame 2 5. The collection port of collection box 15 returns to the position between the bottom of guide frame 1 4 and guide frame 2 5.

[0029] Example 2: Based on Example 1, such as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, it also includes a rake mechanism. The frame 3 is equipped with a rake mechanism, which is used to rake and disperse the raw material between the two fine grinding rollers 10. The rake mechanism includes an electric push rod 18. Two electric push rods 18 are bolted to the frame 3. Both electric push rods 18 are fixed to the protective frame 2. The two electric push rods 18 are symmetrically arranged. A rake frame 19 is fixed to the telescopic rod of each of the two electric push rods 18. The electric push rods 18 drive the rake frame 19 to move back and forth by reciprocating extension and retraction, thereby rake and disperse the raw material between the two fine grinding rollers 10.

[0030] Initially, the two rake frames 19 are positioned above the two fine grinding rollers 10. After the work begins, the operator controls the telescopic rods of the two electric push rods 18 to extend and retract back and forth. The extension and retraction of the telescopic rods of the two electric push rods 18 drives the two rake frames 19 to perform reciprocating horizontal movements. The reciprocating horizontal movements of the two rake frames 19 intermittently rake and disperse the raw materials that fall between the two fine grinding rollers 10, reducing the probability of the raw materials accumulating in one place between the two fine grinding rollers 10 and increasing the grinding time, thereby improving work efficiency. After the work is completed, the operator turns off the electric push rods 18.

[0031] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A raw material grinding device for firecracker production, characterized by: It includes a base frame (1), a protective frame (2) fixed on the base frame (1), the protective frame (2) is open on both sides, a machine frame (3) fixed on the base frame (1), the top of the machine frame (3) is open, a guide frame one (4) fixed on the machine frame (3), a guide frame two (5) fixed on the machine frame (3), a grinding mechanism on the machine frame (3), and a dust isolation mechanism on the machine frame (3). The grinding mechanism includes a servo motor 1 (6), two servo motors 1 (6) are fixedly connected to the frame (3), two coarse grinding rollers (7) are rotatably connected to the frame (3), a transmission component 1 (8) is provided between the servo motor 1 (6) and the coarse grinding rollers (7), two servo motors 2 (9) are fixedly connected to the frame (3), two fine grinding rollers (10) are rotatably connected to the frame (3), and a transmission component 2 (11) is provided between the servo motor 2 (9) and the fine grinding rollers (10). It also includes a rake mechanism. The frame (3) is equipped with a rake mechanism. The rake mechanism is used to rake the raw material between the two fine grinding rollers (10). The rake mechanism includes an electric push rod (18). Two electric push rods (18) are fixed on the frame (3). Both electric push rods (18) are fixed to the protective frame (2). The telescopic rods of the two electric push rods (18) are fixed with a rake frame (19).

2. The raw material grinding device for firecracker production according to claim 1, characterized in that: The transmission assembly 1 (8) includes a drive wheel 1, a driven wheel 1 and a transmission belt 1. The output shafts of the two servo motors 1 (6) are each fixed with a drive wheel 1. One end of each of the two rough grinding rollers (7) is fixed with a driven wheel 1. A transmission belt 1 is wound between the drive wheel 1 and the driven wheel 1.

3. The raw material grinding device for firecracker production according to claim 2, characterized in that: The transmission assembly 2 (11) includes a driving wheel 2, a driven wheel 2 and a transmission belt 2. The output shafts of the two servo motors 2 (9) are all fixed with the driving wheel 2. One end of the two rough grinding rollers (7) is fixed with the driven wheel 2. The transmission belt 2 is wound between the driving wheel 2 and the driven wheel 2.

4. The raw material grinding device for firecracker production according to claim 3, characterized in that: The dust-proof mechanism includes a feeding hopper (12), a feeding hopper (12) fixedly connected to the frame (3), a dust-proof frame (13) rotatably connected to the feeding hopper (12), two torsion springs (14) between the dust-proof frame (13) and the feeding hopper (12), a collection box (15) slidably connected to the frame (3), a collection port is opened on the top of the collection box (15), a limit frame (16) slidably connected to the frame (3), the limit frame (16) is made of iron, and a magnet (17) is fixedly connected to one side of the collection box (15).

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