Raw material screening device for firecracker production

Abstract

The utility model relates to the technical field of firecracker production equipment, in particular to a raw material screening device for firecracker production. According to the raw material screening device, the filter plate can be shaken up and down, so that cakes in raw materials are more sufficiently screened out, meanwhile, the cakes on the filter plate can be pushed out and pulverized, the raw materials are more thoroughly screened, and the raw material screening effect is improved. The screening device comprises a bottom frame, a screening box, a feeding hopper and the like. A screening box is arranged on the underframe, and a feeding hopper is arranged at the top of the screening box. Raw materials are manually poured into a feeding hopper, a motor I, a motor II and a motor III are started, a convex block drives a filter plate to continuously shake up and down, a push plate pushes cakes in the raw materials into a crushing box, and two crushing rollers crush the cakes in the raw materials, so that the filter plate can shake up and down, and meanwhile, the cakes can be pushed out and crushed; and agglomerates in the raw materials are changed into powder to fall out, so that the raw materials are screened more thoroughly, and the raw material screening effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of firecracker production equipment, in particular to a raw material screening device for firecracker production. Background Art

[0002] Fireworks and firecrackers are made of pyrotechnic powder as the main raw material. After ignition, they burn or explode to produce light, sound, color, shape, smoke and other effects. They are used for viewing and are flammable and explosive dangerous items. The raw materials of fireworks need to be screened before processing to obtain relatively fine raw materials. However, most of the existing screening devices cannot fully and thoroughly screen out the lumps in the raw materials. The lumps in the raw materials are easily mixed in the powder after screening, which is not convenient for the subsequent processing of the firecracker raw materials, resulting in poor screening effect. Utility Model Content

[0003] In view of this, the utility model provides a raw material screening device for firecracker production, which can shake the filter plate up and down to more fully screen out the lumps in the raw materials, and can also push out and crush the lumps on the filter plate, so that the raw materials can be screened more thoroughly and the effect of raw material screening can be improved.

[0004] The technical scheme is: a raw material screening device for firecracker production, including a base frame, a screening box, a feed hopper, a motor, a bidirectional screw rod, a mobile frame, a slide rod, a push plate, a spring, a slide frame, a filter plate, a blanking frame, a crushing box, a motor, a rotating rod, a crushing roller, a gear, a motor, a rotating shaft and a protrusion. The upper part of the base frame is provided with a screening box, the interior of the screening box is a hollow structure, the top of the screening box is provided with a feed hopper, the feed hopper is connected with the interior of the screening box, one side of the screening box is provided with a motor, the output shaft of the motor is provided with a bidirectional screw rod, the bidirectional screw rod is connected with a mobile frame by a thread, a plurality of slide rods are slidably connected to the mobile frame, a push plate is provided between the bottoms of the plurality of slide rods, a plurality of springs are connected between the push plate and the mobile frame, the spring is sleeved on the slide rod, a slide frame is provided at the upper part of the screening box, and the slide frame is provided with a A filter plate is placed, the filter plate is in contact with the push plate, a drop opening is opened on the side of the screening box away from the motor one, the drop opening of the screening box is in contact with the filter plate, a drop rack is provided on the base frame, the drop rack is in contact with the drop opening of the screening box, the drop rack is inclined, a crushing box is provided on the upper part of the base frame, the upper part of the crushing box is in contact with the drop rack, a motor two is provided on one side of the crushing box, two rotating rods are rotatably connected to the upper part of the crushing box, one of the rotating rods is fixedly connected to the output shaft of the motor two, crushing rollers are provided on the two rotating rods, gears are provided on the side of the two rotating rods away from the motor two, the two gears are meshed, a motor three is provided on one side of the base frame, the output shaft of the motor three passes through the screening box, a rotating shaft is provided on the output shaft of the motor three, the rotating shaft is rotatably connected to the inside of the screening box, a protrusion is provided on the rotating shaft, and the protrusion is in contact with the filter plate.

[0005] The beneficial effects are as follows: First, manually pour the raw materials to be screened into the feed hopper, and then manually start the first motor, the second motor, and the third motor. The bump drives the filter plate to continuously vibrate up and down. The push plate will push the lumps in the raw materials onto the blanking rack. The lumps in the raw materials will fall into the crushing box along the blanking rack. The two crushing rollers will crush the lumps in the raw materials. In this way, the filter plate can be vibrated up and down, so that the lumps in the raw materials can be screened out more fully. At the same time, the lumps on the filter plate can be pushed out and crushed, so that the lumps in the raw materials become powdery and fall out, making the raw material screening more thorough and improving the effect of raw material screening. Brief Description of the Drawings

[0006] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0007] Figure 2 It is a first sectional three-dimensional structural schematic diagram of the present utility model.

[0008] Figure 3 It is a second sectional three-dimensional structural schematic diagram of the present utility model.

[0009] Reference numerals in the drawings: 1 - chassis, 2 - screening box, 3 - feed hopper, 4 - first motor, 5 - bidirectional lead screw, 6 - moving frame, 7 - sliding rod, 8 - push plate, 9 - spring, 10 - sliding frame, 11 - filter plate, 12 - blanking rack, 13 - crushing box, 14 - second motor, 15 - rotating rod, 16 - crushing roller, 17 - gear, 18 - third motor, 19 - rotating shaft, 20 - bump. Specific Embodiments

[0010] The present utility model will be further described below with reference to the drawings and embodiments.

[0011] Embodiment 1: A raw material screening device for firecracker production, as Figures 1-3As shown in the figure, it includes a chassis, a screening box, a feed hopper, a first motor, a bidirectional lead screw, a moving frame, a sliding rod, a push plate, a spring, a sliding bracket, a filter plate, a blanking frame, a crushing box, a second motor, a rotating rod, a crushing roller, a gear, a third motor, a rotating shaft and a convex block. The upper part of the chassis is welded with a screening box. There is a first discharge port at the bottom of the screening box. The inside of the screening box is a hollow structure. The top of the screening box is connected with a feed hopper by rivets. The feed hopper is communicated with the inside of the screening box. One side of the screening box is welded with a first motor. The output shaft of the first motor is connected with a bidirectional lead screw by bolts. A moving frame is connected to the bidirectional lead screw by threads. A number of sliding rods are slidably connected to the moving frame. A push plate is welded between the bottoms of the number of sliding rods. A number of springs are connected between the push plate and the moving frame by hooks. The springs are sleeved on the sliding rods. A sliding bracket is welded to the upper part inside the screening box. A filter plate is placed on the sliding bracket. The filter plate contacts the push plate. There is a blanking port on the side of the screening box away from the first motor. The blanking port of the screening box contacts the filter plate. A blanking frame is connected to the chassis by bolts. The blanking frame contacts the blanking port of the screening box. The blanking frame is inclined. The upper part of the chassis is welded with a crushing box. There is a second discharge port at the bottom of the crushing box. The upper part of the crushing box contacts the blanking frame. One side of the crushing box is connected with a second motor by rivets. Two rotating rods are rotatably connected to the upper part of the crushing box. One of the rotating rods is fixedly connected to the output shaft of the second motor. Crushing rollers are connected to both of the two rotating rods by flat keys. Gears are connected to the sides of both of the two rotating rods away from the second motor by flat keys. The two gears are meshed. A third motor is welded to one side of the chassis. The output shaft of the third motor passes through the screening box. The output shaft of the third motor is connected with a rotating shaft by bolts. The rotating shaft is rotatably connected to the inside of the screening box. A convex block is welded to the rotating shaft. The convex block contacts the filter plate.

[0012] First, manually pour the raw materials to be screened into the feed hopper, and then manually start Motor 1, Motor 2, and Motor 3. The raw materials fall along the feed hopper onto the filter plate. The output shaft of Motor 3 drives the rotating shaft and the convex block to rotate. The convex block continuously contacts or disengages from the filter plate. The convex block continuously lifts the filter plate, driving the filter plate to continuously vibrate up and down. The filter plate will leave the lumps in the raw materials on the filter plate. The qualified raw materials will fall out through the first discharge port at the bottom of the screening box. When the filter plate moves upward, the filter plate drives the push plate and several sliding rods to move upward, compressing several springs. When the filter plate moves downward, several springs will reset and drive several sliding rods and the push plate to move downward, ensuring that the push plate is always in contact with the filter plate. The output shaft of Motor 1 drives the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw drives the moving frame to reciprocate. The moving frame drives several sliding frames and the push plate to reciprocate. The push plate will push the lumps in the raw materials onto the blanking rack. The lumps in the raw materials will fall into the crushing box along the blanking rack. The output shaft of Motor 2 drives one of the rotating rods, one of the crushing rollers, and one of the gears to rotate. The two gears mesh. One of the gears drives the other gear, the other crushing roller, and the other rotating rod to rotate in the opposite direction. The two crushing rollers will crush the lumps in the raw materials, causing the crushed lumps to fall out through the second discharge port of the crushing box. Then, manually pour the raw materials to be screened into the feed hopper again. By repeating this process, the filter plate can be vibrated up and down, enabling the lumps in the raw materials to be screened out more thoroughly. At the same time, the lumps on the filter plate can be pushed out and crushed, causing the lumps in the raw materials to fall out in powder form, making the screening of the raw materials more thorough and improving the screening effect of the raw materials.

[0013] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A raw material screening device for firecracker production, characterized in that: It includes a base frame, a screening box, a feed hopper, a motor and a bidirectional screw. The upper part of the base frame is provided with a screening box, the interior of the screening box is a hollow structure, the top of the screening box is provided with a feed hopper, the feed hopper is connected with the interior of the screening box, one side of the screening box is provided with a motor, and the output shaft of the motor is provided with a bidirectional screw.

2. A raw material screening device for firecracker production according to claim 1, characterized in that: It includes a moving frame, a sliding rod, a push plate, a spring and a sliding frame. The moving frame is connected to the bidirectional screw rod through a thread. Several sliding rods are slidably connected to the moving frame. A push plate is arranged between the bottoms of the several sliding rods. Several springs are connected between the push plate and the moving frame. The springs are sleeved on the sliding rods. A sliding frame is arranged on the upper part of the screening box.

3. A raw material screening device for firecracker production according to claim 2, characterized in that: It includes a filter plate, a blanking rack and a crushing box. The filter plate is placed on the slide, the filter plate is in contact with the push plate, a blanking opening is opened on the side of the screening box away from the motor, the blanking opening of the screening box is in contact with the filter plate, a blanking rack is provided on the base frame, the blanking rack is in contact with the blanking opening of the screening box, the blanking rack is inclined, a crushing box is provided on the upper part of the base frame, and the upper part of the crushing box is in contact with the blanking rack.

4. A raw material screening device for firecracker production according to claim 3, characterized in that: The invention comprises a second motor, a rotating rod, a crushing roller and a gear. The second motor is arranged on one side of the crushing box. Two rotating rods are rotatably connected to the upper part of the crushing box. One of the rotating rods is fixedly connected to the output shaft of the second motor. The two rotating rods are provided with crushing rollers. The two rotating rods are provided with gears on the side away from the second motor, and the two gears are meshed.

5. A raw material screening device for firecracker production according to claim 4, characterized in that: It includes motor three, a rotating shaft and a convex block. Motor three is arranged on one side of the base frame. The output shaft of motor three passes through the screening box. A rotating shaft is arranged on the output shaft of motor three. The rotating shaft is rotatably connected with the inside of the screening box. A convex block is arranged on the rotating shaft. The convex block contacts the filter plate.

Images