An automatic tablet press for pyrotechnic powder production

Abstract

The present invention discloses an automated tablet press for producing pyrotechnic powder, and relates to the technical field of pyrotechnic powder production. The present invention comprises a frame, a top frame being fixed on the top of the frame, a pressing assembly for tableting pyrotechnic raw materials being provided on the top front side of the top frame, a feeding assembly for feeding pyrotechnic raw materials being provided on the top rear side of the top frame, and an automatic device being provided inside the frame, the automatic device comprising two rotatably mounted shaped wheels on both sides of the interior of the frame, a transmission belt being mounted between the exteriors of the two shaped wheels, and a plurality of tableting barrels being evenly and equidistantly fixed inside the transmission belt. The present invention realizes the automated transmission and pressing process of pyrotechnic raw materials by providing the automatic device, thereby significantly improving the working efficiency of the production line and reducing manual intervention. Compared with manual operation, the continuous operation of the automatic device shortens the production cycle of pyrotechnic raw material tableting, thereby increasing output.

Description

Technical Field

[0001] The invention relates to the technical field of pyrotechnic powder production, in particular to an automatic tablet press for pyrotechnic powder production. Background Art

[0002] A tablet press for pyrotechnic powder production is a device specifically designed for manufacturing fireworks and firecrackers. It primarily compresses mixed powder into tablets, granules, or other forms through a pressing process. In the production of fireworks powder, tablet presses not only improve production efficiency but also ensure product quality and consistency. This is particularly relevant to the technical field of pyrotechnic products used in motor vehicle safety applications, such as inflators for airbags.

[0003] The Chinese patent with patent announcement number CN207984063U discloses a high-efficiency automatic tablet press, which relates to the field of pharmaceutical equipment. The high-efficiency automatic tablet press includes a body and a support seat, the bottom of the body is fixedly connected to a fixed plate, the lower surface of the fixed plate is provided with a slot, the front inner wall of the slot is fixedly connected to a fixed shaft, the surface of the fixed shaft is sleeved with a swivel, the lower surface of the swivel is fixedly connected to a buffer rod, the upper surface of the support seat is provided with a buffer groove, and the interior of the buffer groove is slidably connected to a movable block. The high-efficiency automatic tablet press, through the fixed rod provided on the lower surface of the fixed plate, achieves the limitation of the fixed rod, thereby avoiding the body from shaking during operation, and through the limit plate provided on the right side of the support seat, achieves the possibility of the body shaking by using the limit plate, thereby avoiding the shaking affecting the tablet pressing effect, and through the buffer ring provided inside the groove, achieves the effect of squeezing the buffer ring, thereby reducing the vibration of the body.

[0004] However, the current tablet press has the following problems: the degree of automation of the tablet press is low, and each time the pyrotechnic raw materials are tableted, the staff needs to manually put the pyrotechnic raw materials into the tableting mold. The manual feeding speed is slow, which increases the production cycle. Especially in large-scale production, the low efficiency will affect the overall output. Therefore, we proposed an automated tablet press for pyrotechnic powder production. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides an automatic tablet press for pyrotechnic powder production, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated tablet press for producing pyrotechnic powder, comprising a frame, a top frame fixed on the top of the frame, a pressing assembly for tableting pyrotechnic raw materials is provided on the top front side of the top frame, the pressing assembly comprises a hydraulic cylinder, the hydraulic cylinder is fixed to the top of the top frame, a fixed plate is fixed to the bottom of the telescopic end of the hydraulic cylinder, a plurality of upper pressing columns are fixed to the bottom of the fixed plate at uniform and equidistant intervals, a feeding assembly for feeding pyrotechnic raw materials is provided on the top rear side of the top of the top frame, the feeding assembly comprises a material box, the material box is fixed on the top of the top frame, a stirring blade rod is rotatably installed inside the material box, and the stirring blade rod is driven by a motor, a feeding pipe is fixed to the bottom of the material box, The bottom of the feeding tube is fixed with a feeding box, and the bottom of the feeding box is in contact with the top outer wall of the conveyor belt. An automatic device is provided inside the frame, and the automatic device includes two shaped wheels rotatably mounted on both sides of the frame, a conveyor belt installed between the outsides of the two shaped wheels, a number of film-making cylinders fixed evenly and equidistantly inside the conveyor belt, and a circular groove plate fixed inside the frame through a bracket. A single shaped wheel is driven by a servo motor, and a circular opening communicating with the inside of the film-making cylinder is provided on the outside of the conveyor belt. The outer diameter of the upper pressure column is equal to the circular opening of the conveyor belt and the inner diameter of the film-making cylinder. The interiors of the several film-making cylinders are all slidably mounted on the lower pressure plate, and an annular groove is provided on the outside of the circular groove plate, and the upper part of the annular groove of the circular groove plate is "concave". The servo motor drives the single shaped wheel to rotate, and the two shaped wheels drive the conveyor belt to rotate under the transmission action of the two shaped wheels, and the conveyor belt drives the ball rod along the circular groove through the film-making cylinder. The annular groove of the groove plate slides, and when the ball rod moves through the "concave" part of the annular groove of the circular groove plate, the ball rod is restricted by the "concave" part of the annular groove of the circular groove plate, and the ball rod drives the lower pressure plate to move along the inside of the film-making cylinder in the direction away from the inner wall of the conveyor belt. At this time, when the film-making cylinder passes through the discharge box, the pyrotechnic raw materials in the discharge box enter the film-making cylinder through the circular opening of the conveyor belt. As the conveyor belt continues to move, multiple film-making cylinders filled with pyrotechnic raw materials move to the bottom of the upper pressure column, the servo motor stops driving the I-shaped wheel to drive the conveyor belt to rotate, and the hydraulic cylinder is started. The telescopic end of the hydraulic cylinder pushes the fixed plate to drive the upper pressure column to move downward, and the upper pressure column passes through the circular opening of the conveyor belt into the film-making cylinder. The upper pressure column and the lower pressure plate press the pyrotechnic raw materials inside the film-making cylinder into sheets, and then,The telescopic end of the hydraulic cylinder drives the fixed plate, which drives the upper pressure column upward. The servo motor then drives the I-shaped wheel to rotate the conveyor belt. When the ball rod moves out of the "concave" part of the annular groove of the circular groove plate, the ball rod pushes the lower pressure plate along the inside of the film production cylinder toward the inner wall of the conveyor belt. At this time, the lower pressure plate pushes the pressed pyrotechnic material out of the film production cylinder, and the pressed pyrotechnic material falls into the receiving tray for collection.

[0007] The gears are engaged with the soft toothed belts, and the pressing plate is slidably mounted on the inside of the material box. The pressing plate has a T-shaped slot plate fixed on the top of the pressing plate, and the T-shaped slot plate passes through the top of the inner wall of the material box. A sliding groove is provided on the top of the T-shaped slot plate, and the middle of the several-shaped column is slidably mounted inside the sliding groove of the T-shaped slot plate. An inner tube is embedded in the middle of the top of the pressing plate, and the inner tube is slidably mounted inside the material box. The two shaped wheels drive the conveyor belt to rotate. During the process, the conveyor belt drives the soft toothed belt to rotate, the soft toothed belt drives the gear to rotate, the gear drives the I-shaped column to rotate, the I-shaped column slides along the inside of the slide groove of the T-shaped slot plate, and the I-shaped column pushes the T-shaped slot plate to drive the pressure plate to move up and down along the inside of the discharge box. Every time the pressure plate moves downward, the pressure plate pushes the pyrotechnic raw materials in the discharge box to press against the conveyor belt, so that the raw materials in the discharge box pass through the circular mouth of the conveyor belt faster and fall into the film-making cylinder. The top of the inner tube is arranged in an annular triangular shape to prevent the pyrotechnic raw materials falling into the inner tube from being stuck at the top position of the inner tube. The inner wall of the inner tube is arranged in an annular serrated shape, and each time the pressure plate moves up and down, it will also drive the inner tube to move up and down. Every time the inner tube moves downward, the annular serrated horizontal surface of the inner tube will further push the pyrotechnic raw materials to move downward.

[0008] The lock is fixed on the upper frame, and the lock is fixed on the lower frame, and the lock is fixed on the lower frame. The lock is fixed on the lower frame, and the lock is fixed on the lower frame. The two locks are L-shaped, and the L-shaped openings of the two baffles are set in a direction away from the center of the top frame. The bottom of the baffle is in contact with the top of the conveyor belt. When the film-making cylinder filled with pyrotechnic raw materials moves out of the unloading box position, the two baffles will form a blockage on the top of the circular opening of the conveyor belt.

[0009] According to the above technical solution, a tightening device is provided on both sides of the lower side of the blanking box, and the tightening device includes a square rod, the square rod is fixed at the inner wall of the frame, and a turntable is rotatably installed on the end of the square rod away from the inner wall of the frame, and a cylinder 2 is fixed to the edge of one side of the turntable close to the square rod, and an elastic telescopic rod is fixed to the bottom of the square rod, and a cylinder 1 is fixed to the side of the telescopic end of the elastic telescopic rod away from the square rod, and a U-shaped knocking rod is fixed to the side of the telescopic end of the elastic telescopic rod away from the square rod, and the top of the U-shaped knocking rod is in contact with the top of the inner wall of the conveyor belt, and the inner wall of the conveyor belt and the outer wall of the turntable are both rough surfaces. The inner wall of the conveyor belt is in contact with the outer wall of the turntable, and the upper semicircular surface of the cylinder one is located on the motion trajectory of the cylinder two. During the operation of the conveyor belt, under the action of the friction between the conveyor belt and the turntable, the conveyor belt drives the turntable to rotate, and the turntable drives the cylinder two to rotate. The cylinder two pushes the upper semicircular surface of the cylinder one to drive the telescopic end of the elastic telescopic rod to move downward, and the telescopic end of the elastic telescopic rod drives the U-shaped knocking rod away from the conveyor belt. When the cylinder two no longer pushes the upper semicircular surface of the cylinder one, under the action of the elastic force of the elastic telescopic rod, the telescopic end of the elastic telescopic rod is reset and moves upward, and the telescopic end of the elastic telescopic rod drives the U-shaped knocking rod to knock on the conveyor belt.

[0010] The present invention provides an automated tablet press for pyrotechnic powder production. It has the following beneficial effects:

[0011] (1) The present invention realizes the automatic transmission and pressing process of pyrotechnic raw materials by setting up an automatic device, thereby greatly improving the working efficiency of the production line and reducing manual intervention. Compared with manual operation, the continuous operation of the automatic device shortens the production cycle of pyrotechnic raw material tableting, thereby increasing output.

[0012] (2) The present invention sets a material pressing device so that the work wheel, conveyor belt, soft toothed belt, gear, polygonal column, T-shaped slot plate, polygonal column, T-shaped slot plate, pressure plate and discharge box cooperate to drive the pressure plate to push the pyrotechnic raw materials in the discharge box to press the conveyor belt, so that the raw materials in the discharge box pass through the circular mouth of the conveyor belt more quickly and fall into the tableting cylinder, thereby avoiding the stagnation or slow flow of the pyrotechnic raw materials during the discharge process, thereby speeding up the speed of the entire production process; each time the inner tube moves downward, the annular serrated horizontal surface of the inner tube will further push the pyrotechnic raw materials to move downward, thereby effectively avoiding the accumulation or stagnation of the pyrotechnic raw materials in the inner tube and the discharge tube, ensuring the continuous flow of the pyrotechnic raw materials, reducing the blockage phenomenon in production, and thus improving the stability and reliability of the pyrotechnic raw material tableting production.

[0013] (3) The present invention provides an anti-material-slipping device so that two baffles form a shield at the top of the circular opening of the conveyor belt. The shield formed by the baffles can effectively prevent the pyrotechnic raw materials from accidentally overflowing due to vibration or external force during the operation of the conveyor belt, prevent the loss and leakage of pyrotechnic raw materials, and help maintain the amount and uniformity of pyrotechnic raw materials in the film-making tube, ensuring that the amount of raw materials in each film-making tube is relatively consistent, thereby improving the quality stability and consistency of the final product.

[0014] (4) The present invention provides a compacting device so that the conveyor belt, the turntable, the second cylinder, the first cylinder, and the elastic telescopic rod cooperate to drive the U-shaped knocking rod to knock the conveyor belt, thereby causing the conveyor belt around the film making tube to vibrate. The vibration can make the pyrotechnic raw materials more tightly filled inside the film making tube, reduce the looseness of the pyrotechnic raw materials, and thus improve the density and quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the present invention as a whole;

[0016] Figure 2 This is a schematic diagram of the local structure section of the present invention Figure 1 ;

[0017] Figure 3 This is a schematic diagram of the local structure section of the present invention Figure 2 ;

[0018] Figure 4 is a schematic diagram of the automatic device of the present invention;

[0019] Figure 5 It is a partial cross-sectional schematic diagram of the automatic device of the present invention;

[0020] Figure 6 Schematic diagram of the material pressing device of the present invention;

[0021] Figure 7 It is a partial cross-sectional schematic diagram of the pressing device of the present invention;

[0022] Figure 8 Schematic diagram of the anti-channeling device of the present invention;

[0023] Figure 9 is a schematic diagram of a compacting device of the present invention;

[0024] Figure 10 Schematic diagram of the receiving tray of the present invention.

[0025] In the figure: 1. Frame; 2. Top frame; 3. Pressing assembly; 31. Hydraulic cylinder; 32. Fixed plate; 33. Upper pressing column; 4. Feeding assembly; 41. Feed box; 42. Mixing blade; 43. Feeding pipe; 44. Feeding box; 5. Automatic device; 51. Shaped wheel; 52. Conveyor belt; 53. Circular groove plate; 54. Film making cylinder; 55. Lower pressing plate; 56. Ball rod; 6. Pressing device; 61. Fixed frame; 62. T-slot plate; 63. Column; 64. Gear; 65. Inner tube; 66. Pressing plate; 67. Soft toothed belt; 7. Anti-slip device; 71. U-shaped slide bar; 72. Baffle; 73. Articulated rod; 8. Tightening device; 81. Square rod; 82. Elastic telescopic rod; 83. U-shaped knocking rod; 84. Cylinder 1; 85. Turntable; 86. Cylinder 2; 9. Receiving tray. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] See also Figures 1-10 One embodiment of the present invention is: an automatic tablet press for producing pyrotechnic powder, comprising a frame 1, a top frame 2 is fixed on the top of the frame 1, a pressing assembly 3 for tableting pyrotechnic raw materials is provided on the top front side of the top frame 2, the pressing assembly 3 includes a hydraulic cylinder 31, the hydraulic cylinder 31 is fixed on the top of the top frame 2 (such as Figure 8The bottom of the telescopic end of the hydraulic cylinder 31 is fixed with a fixed plate 32, and the bottom of the fixed plate 32 is evenly and equidistantly fixed with a number of upper pressure columns 33. A feeding assembly 4 for feeding pyrotechnic raw materials is provided on the top rear side of the top frame 2. The feeding assembly 4 includes a material box 41, which is fixed to the top of the top frame 2. A stirring blade rod 42 is rotatably installed inside the material box 41, and the stirring blade rod 42 is driven by a motor. A discharge pipe 43 is fixed to the bottom of the discharge pipe 43, and a discharge box 44 is fixed to the bottom of the discharge box 44. The bottom of the discharge box 44 contacts the top outer wall of the conveyor belt 52. An automatic device 5 is provided inside the frame 1. The automatic device 5 includes two work-shaped wheels 51 rotatably installed on both sides of the interior of the frame 1, a conveyor belt 52 driven between the outsides of the two work-shaped wheels 51, a number of film-making cylinders 54 evenly and equidistantly fixed inside the conveyor belt 52, a circular groove plate 53 fixed to the interior of the frame 1 by a bracket, and a single work-shaped wheel 51 The servo motor drives the conveyor belt 52 and the upper pressing column 33, which is connected to the inner diameter of the film-making cylinder 54. The outer diameter of the upper pressing column 33 is equal to the inner diameter of the circular opening of the conveyor belt 52 and the film-making cylinder 54. The interiors of several film-making cylinders 54 are slidably mounted on the lower pressing plate 55. The outer side of the circular groove plate 53 is provided with an annular groove, and the upper part of the annular groove of the circular groove plate 53 is "concave". A ball rod 56 is fixed on the side of the lower pressing plate 55 away from the inner wall of the conveyor belt 52. The ball rod 56 passes through the film-making cylinder 54. The side of the ball rod 56 away from the lower pressing plate 55 is slidably mounted on the inner ring groove of the circular groove plate 53. A receiving tray 9 is fixed to the lower inner wall of the frame 1. Through the setting of the automatic device 5, the automatic transmission and pressing process of the pyrotechnic raw materials is realized, which can greatly improve the working efficiency of the production line and reduce manual intervention. Compared with manual operation, the continuous operation of the automatic device 5 shortens the production cycle of the pyrotechnic raw material tableting, thereby increasing output.

[0028] A pressing device 6 is provided below the material box 41, which includes a pressing plate 66, two fixing frames 61, and two soft toothed belts 67. The two soft toothed belts 67 are respectively fixed to the outer walls of the conveyor belt 52 on both sides, and the two fixing frames 61 are respectively fixed to the top sides of the discharge box 44. A shaped column 63 is rotatably installed between the two fixing frames 61. Gears 64 are fixed on both sides of the shaped column 63. The gears 64 are meshed with the soft toothed belts 67. The pressing plate 66 is slidably installed inside the discharge box 44. A T-shaped slot plate 62 is fixed on the top of the pressing plate 66, and the T-shaped slot plate 62 passes through the top of the inner wall of the discharge box 44. A slide groove is provided on the top of the T-shaped slot plate 62. The middle of the shaped column 63 is slidably installed inside the slide groove of the T-shaped slot plate 62. An inner tube 65 is embedded in the middle of the top of the pressing plate 66. The inner tube 65 is slidably installed inside the discharge pipe 43. Through the arrangement of the above structure, The pressure plate 66 pushes the pyrotechnic raw materials in the discharge box 44 toward the conveyor belt 52, so that the raw materials in the discharge box 44 can pass through the circular mouth of the conveyor belt 52 faster and fall into the tableting tube 54, thereby avoiding the stagnation or slow flow of the pyrotechnic raw materials during the discharge process, thereby speeding up the speed of the entire production process. The top of the inner tube 65 is set in an annular triangular shape, which avoids the pyrotechnic raw materials falling from the discharge pipe 43 into the inner tube 65 from being stuck at the top position of the inner tube 65. The inner wall of the inner tube 65 is set in an annular serrated shape. Through the setting of the above structure, the annular serrated horizontal surface of the inner tube 65 will further push the pyrotechnic raw materials to move downward, thereby effectively avoiding the accumulation or stagnation of the pyrotechnic raw materials in the inner tube 65 and the discharge pipe 43, ensuring the continuous flow of the pyrotechnic raw materials, reducing the blockage phenomenon in production, and thus improving the stability and reliability of the pyrotechnic raw material tableting production.

[0029] When in use, the pyrotechnic raw materials are put into the material box 41, and the stirring blade rod 42 is driven by the motor to rotate. The stirring blade rod 42 stirs the pyrotechnic raw materials in the material box 41, thereby accelerating the speed at which the pyrotechnic raw materials in the material box 41 enter the discharge box 44 through the discharge pipe 43. Since the discharge box 44 is in contact with the top of the conveyor belt 52, the pyrotechnic raw materials in the discharge box 44 will not fall out of the discharge box 44. The servo motor drives the single work-shaped wheel 51 to rotate. Under the transmission action of the two work-shaped wheels 51, the two work-shaped wheels 51 drive the conveyor belt 52 to rotate, and the conveyor belt 52 is brought through the film-making cylinder 54. The movable ball rod 56 slides along the inner annular groove of the circular groove plate 53. When the ball rod 56 moves through the "concave" part of the annular groove of the circular groove plate 53 (the ball rod 56 moves from the feeding assembly 4 to the pressing assembly 3), the ball rod 56 is restricted by the "concave" part of the annular groove of the circular groove plate 53. The ball rod 56 drives the lower pressing plate 55 to move along the inside of the film-making cylinder 54 in the direction away from the inner wall of the conveyor belt 52. At this time, when the film-making cylinder 54 passes through the discharge box 41, the pyrotechnic raw materials in the discharge box 41 enter the film-making cylinder 54 through the circular opening of the conveyor belt 52. As the conveyor belt 52 continues to move, multiple pieces of pyrotechnic raw materials are put into the film-making cylinder 54. The film-making cylinder 54 moves to the bottom of the upper pressure column 33, the servo motor stops driving the shape wheel 51 to drive the conveyor belt 52 to rotate, and the hydraulic cylinder 31 is started. The telescopic end of the hydraulic cylinder 31 pushes the fixed plate 32 to drive the upper pressure column 33 to move downward, and the upper pressure column 33 passes through the circular opening of the conveyor belt 52 and enters the film-making cylinder 54. The upper pressure column 33 and the lower pressure plate 55 press the pyrotechnic raw materials inside the film-making cylinder 54 into sheets. Then, the telescopic end of the hydraulic cylinder 31 drives the fixed plate 32 to drive the upper pressure column 33 to move upward, and the servo motor drives the shape wheel 51 again to drive the conveyor belt 52 to rotate. When the ball rod 56 moves out and returns When the annular groove of the shaped groove plate 53 is in the "concave" part, the ball rod 56 pushes the lower pressure plate 55 to move along the inside of the tableting cylinder 54 toward the inner wall of the conveyor belt 52. At this time, the lower pressure plate 55 pushes the pyrotechnic raw materials pressed into sheets out of the tableting cylinder 54, and the pyrotechnic raw materials pressed into sheets will fall into the receiving tray 9 for collection. Through the setting of the automatic device 5, the automatic transmission and pressing process of the pyrotechnic raw materials is realized, which can greatly improve the working efficiency of the production line and reduce manual intervention. Compared with manual operation, the continuous operation of the automatic device 5 shortens the production cycle of the pyrotechnic raw material tableting, thereby increasing output.

[0030] In the process of the two work-shaped wheels 51 driving the conveyor belt 52 to rotate, the conveyor belt 52 drives the soft toothed belt 67 to rotate, the soft toothed belt 67 drives the gear 64 to rotate, the gear 64 drives the four-shaped column 63 to rotate, the four-shaped column 63 slides along the inside of the slide groove of the T-shaped slot plate 62, and the four-shaped column 63 pushes the T-shaped slot plate 62 to drive the pressure plate 66 to move up and down along the inside of the discharge box 44. Each time the pressure plate 66 moves downward, the pressure plate 66 pushes the pyrotechnic raw materials in the discharge box 44 to press against the conveyor belt 52, so that the raw materials in the discharge box 44 fall through the round mouth of the conveyor belt 52 faster. Each time the pressing plate 66 moves up and down, the inner tube 65 is also driven to move up and down. Each time the inner tube 65 moves downward, the annular serrated horizontal surface of the inner tube 65 further pushes the pyrotechnic raw materials downward, thereby effectively avoiding the accumulation or stagnation of the pyrotechnic raw materials in the inner tube 65 and the discharge tube 43, ensuring the continuous flow of the pyrotechnic raw materials, reducing blockages in production, and thus improving the stability and reliability of the pyrotechnic raw material tableting production.

[0031] See also Figures 1-10 The two U-shaped slide bars 71 are fixed on the two sides of the top frame 2, and the lower cross bars of the two U-shaped slide bars 71 are fixed with baffles 72 at the bottom. The baffles 72 and the fixed plate 32 are hingedly connected by hinge rods 73. The two baffles 72 are both L-shaped, and the L-shaped openings of the two baffles 72 are set in a direction away from the center of the top frame 2. The bottom of the baffle 72 contacts the top of the conveyor belt 52. Through the setting of the above structure, the shielding formed by the baffle 72 can effectively prevent the pyrotechnic raw materials from accidentally overflowing due to vibration or external force during the operation of the conveyor belt 52, preventing the loss and leakage of pyrotechnic raw materials, and helping to maintain the amount and uniformity of the pyrotechnic raw materials in the film-making cylinder 54, ensuring that the amount of raw materials in each film-making cylinder 54 is relatively consistent, thereby improving the quality stability and consistency of the final product.

[0032] A compacting device 8 is provided on both sides of the lower side of the blanking box 44. The compacting device 8 includes a square rod 81, which is fixed to the inner wall of the frame 1. A turntable 85 is rotatably installed at one end of the square rod 81 away from the inner wall of the frame 1. A cylinder 2 86 is fixed to the edge of the turntable 85 close to the side of the square rod 81. An elastic telescopic rod 82 is fixed to the bottom of the square rod 81. A cylinder 1 84 is fixed to the side of the telescopic end of the elastic telescopic rod 82 away from the square rod 81. A U-shaped knocking rod 83 is fixed to the side of the telescopic end of the elastic telescopic rod 82 away from the square rod 81. The top of the U-shaped knocking rod 83 is in contact with the conveyor belt 5. 2, the inner wall of the conveyor belt 52 and the outer wall of the turntable 85 are both rough surfaces. The inner wall of the conveyor belt 52 is in contact with the outer wall of the turntable 85. The upper semicircular surface of the cylinder 1 84 is located on the movement trajectory of the cylinder 2 86. Through the arrangement of the above structure, the telescopic end of the elastic telescopic rod 82 drives the U-shaped knocking rod 83 to knock the conveyor belt 52, thereby causing the conveyor belt 52 around the film-making cylinder 54 to vibrate. The vibration can make the pyrotechnic raw materials more tightly filled in the film-making cylinder 54, reducing the looseness of the pyrotechnic raw materials, thereby improving the density and quality of the final product.

[0033] During use, when the film-making cylinder 54 filled with pyrotechnic raw materials moves out of the position of the discharge box 44, the two baffles 72 will form a shield at the top of the circular mouth of the conveyor belt 52. The shield formed by the baffles 72 can effectively prevent the pyrotechnic raw materials from accidentally overflowing due to vibration or external force during the operation of the conveyor belt 52, prevent the pyrotechnic raw materials from being lost and leaked, and help to maintain the amount and uniformity of the pyrotechnic raw materials in the film-making cylinder 54, ensuring that the amount of raw materials in each film-making cylinder 54 is relatively consistent, thereby improving the quality stability and consistency of the final product; each time the telescopic end of the hydraulic cylinder 31 pushes the fixed plate 32 downward, the fixed plate 32 pushes the hinged rod 73 to drive the baffle 72 to move away from the center of the top frame 2, and the baffle 72 drives the U-shaped slide bar 71 to move with it. At this time, the baffle 72 no longer forms a shield on the top of the circular mouth of the conveyor belt 52; it should be noted that since the baffle 72 is set in an L shape, the presence of the soft toothed belt 67 will not interfere with the movement of the baffle 72 during the displacement of the baffle 72.

[0034] It should be noted that the combined area of ​​the two baffles 72 is larger than the diameter of the circular opening of the conveyor belt 52 .

[0035] During the operation of the conveyor belt 52, under the action of the friction between the conveyor belt 52 and the turntable 85, the conveyor belt 52 drives the turntable 85 to rotate, and the turntable 85 drives the cylinder 2 86 to rotate. The cylinder 2 86 pushes the upper semicircular surface of the cylinder 1 84 to drive the telescopic end of the elastic telescopic rod 82 to move downward, and the telescopic end of the elastic telescopic rod 82 drives the U-shaped knocking rod 83 away from the conveyor belt 52. When the cylinder 2 86 no longer pushes the upper semicircular surface of the cylinder 1 84, under the elastic force of the elastic telescopic rod 82, the telescopic end of the elastic telescopic rod 82 is reset and moves upward, and the telescopic end of the elastic telescopic rod 82 drives the U-shaped knocking rod 83 to knock the conveyor belt 52, thereby causing the conveyor belt 52 around the film-making tube 54 to vibrate. The vibration can make the pyrotechnic raw materials more tightly filled inside the film-making tube 54, reducing the looseness of the pyrotechnic raw materials, thereby improving the density and quality of the final product.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automated tablet press for producing pyrotechnic powder, comprising a frame (1), characterized in that: A top frame (2) is fixed on the top of the frame (1), a pressing assembly (3) is provided on the front side of the top of the frame (2), a feeding assembly (4) is provided on the rear side of the top of the frame (2), and an automatic device (5) is provided inside the frame (1), the automatic device (5) comprises two work-shaped wheels (51) rotatably mounted on both sides of the inside of the frame (1), a transmission belt (52) installed between the outsides of the two work-shaped wheels (51), a plurality of film-making cylinders (54) evenly and equidistantly fixed inside the transmission belt (52), and a circular groove plate (53) fixed inside the frame (1) through a bracket, wherein a single work-shaped wheel (51) is driven by a servo motor. The conveyor belt (52) is provided with a circular opening on the outside thereof which is connected to the inside of the film-making cylinder (54). The insides of several of the film-making cylinders (54) are all slidably mounted on the lower pressure plate (55). The outer side of the circular groove plate (53) is provided with an annular groove, and the upper part of the annular groove of the circular groove plate (53) is "concave". A ball rod (56) is fixed on the side of the lower pressure plate (55) away from the inner wall of the conveyor belt (52). The ball rod (56) passes through the film-making cylinder (54). The side of the ball rod (56) away from the lower pressure plate (55) is slidably mounted inside the annular groove of the circular groove plate (53). A receiving tray (9) is fixed on the lower inner wall of the frame (1); The pressing assembly (3) includes a hydraulic cylinder (31), which is fixed to the top of the top frame (2). A fixed plate (32) is fixed to the bottom of the telescopic end of the hydraulic cylinder (31), and a plurality of upper pressing columns (33) are fixed to the bottom of the fixed plate (32) at even intervals, and the outer diameter of the upper pressing columns (33) is equal to the inner diameter of the circular opening of the conveyor belt (52) and the film-making cylinder (54); The feeding assembly (4) includes a material box (41), the material box (41) is fixed on the top of the top frame (2), a stirring blade rod (42) is rotatably installed inside the material box (41), and the stirring blade rod (42) is driven by a motor, a discharge pipe (43) is fixed at the bottom of the material box (41), a discharge box (44) is fixed at the bottom of the discharge pipe (43), and the bottom of the discharge box (44) is in contact with the top outer wall of the conveyor belt (52); A pressing device (6) is provided below the material box (41), and the pressing device (6) includes a pressing plate (66), two fixing frames (61), and two soft toothed belts (67). The two soft toothed belts (67) are respectively fixed to the outer walls of the conveyor belt (52), and the two fixing frames (61) are respectively fixed to the top of the material box (44). A shaped column (63) is rotatably installed between the two fixing frames (61), and gears (64) are fixed on both sides of the shaped column (63). ), the gear (64) is meshed with the soft toothed belt (67), the pressing plate (66) is slidably mounted inside the blanking box (44), a T-shaped slot plate (62) is fixed on the top of the pressing plate (66), and the T-shaped slot plate (62) passes through the top of the inner wall of the blanking box (44), a sliding groove is opened on the top of the T-shaped slot plate (62), the middle of the several-shaped column (63) is slidably mounted inside the sliding groove of the T-shaped slot plate (62), and an inner tube (65) is embedded in the middle of the top of the pressing plate (66).

2. The automatic tablet press for pyrotechnic powder production according to claim 1, characterized in that: The inner tube (65) is slidably mounted inside the discharge tube (43), and the top of the discharge tube (43) is arranged in an annular triangular shape.

3. The automatic tablet press for pyrotechnic powder production according to claim 1, characterized in that: The inner wall of the inner tube (65) is arranged in an annular serrated shape.

4. The automatic tablet press for pyrotechnic powder production according to claim 1, characterized in that: An anti-slip device (7) is provided below the fixed plate (32), and the anti-slip device (7) comprises two U-shaped slide bars (71), the upper transverse support bars of the two U-shaped slide bars (71) are staggered and slidably mounted on both sides of the top frame (2), and the bottoms of the lower transverse support bars of the two U-shaped slide bars (71) are fixed with baffles (72), and the baffles (72) are hingedly connected to the fixed plate (32) via a hinged rod (73).

5. The automatic tablet press for pyrotechnic powder production according to claim 4, characterized in that: The two baffles (72) are both L-shaped, and the L-shaped openings of the two baffles (72) are arranged in a direction away from the center of the top frame (2), and the bottom of the baffle (72) contacts the top of the conveyor belt (52).

6. The automatic tablet press for pyrotechnic powder production according to claim 1, characterized in that: A tightening device (8) is provided on both sides below the material box (44), and the tightening device (8) includes a square rod (81), the square rod (81) is fixed to the inner wall of the frame (1), and a turntable (85) is rotatably mounted on one end of the square rod (81) away from the inner wall of the frame (1), and a cylinder 2 (86) is fixed on the edge of one side of the turntable (85) close to the square rod (81), and an elastic telescopic rod (82) is fixed to the bottom of the square rod (81), and a cylinder 1 (84) is fixed to the side of the telescopic end of the elastic telescopic rod (82) away from the square rod (81), and a U-shaped knocking rod (83) is fixed to the side below the telescopic end of the elastic telescopic rod (82) away from the square rod (81), and the top of the U-shaped knocking rod (83) contacts the top of the inner wall of the conveyor belt (52).

7. The automatic tablet press for pyrotechnic powder production according to claim 6, characterized in that: The inner wall of the conveyor belt (52) and the outer wall of the turntable (85) are both rough surfaces. The inner wall of the conveyor belt (52) contacts the outer wall of the turntable (85). The upper semicircular surface of the cylinder 1 (84) is located on the motion trajectory of the cylinder 2 (86).

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