Single firework bright bead filling device

Abstract

The invention discloses a single firework bright bead filling device which is characterized in that a swing box is mounted on a lifting frame, fireworks on a conveying mechanism pass through the lower part of the swing box, and the swing box is connected with a swing driving mechanism to be switched among three states of a forward inclined state, a horizontal state and a reverse inclined state; the lower concave part of the bottom surface of the swinging box and the blanking part are respectively positioned on two opposite sides of the connecting part; when the telescopic plate in the downward concave part retracts downwards, the downward concave part forms a concave cavity for accommodating a plurality of firework bright beads; a switch plate is correspondingly arranged below an upper die plate of the discharging part, and the switch plate horizontally moves in a reciprocating mode so that the corresponding switch holes and the upper die holes can be switched between the staggered state and the overlapped state. Potential safety hazards caused by collision of the bright beads can be completely eradicated, and the bright beads are prevented from being broken; according to the firework bright bead loading device, the reloading phenomenon of the firework bright beads can be eradicated, it is ensured that the firework bright beads enter the upper die hole in the forward inclined state and are prevented from being separated from the upper die hole in the reverse inclined state, and the production efficiency is effectively improved on the basis that the loading work reliability and safety are ensured.

Description

Technical Field

[0001] The invention relates to a device for respectively filling single firework bright beads into a plurality of launching cavities of fireworks. Background Art

[0002] Generally, a number of bright beads are loaded into the launch chamber of fireworks at one time. However, some special effect bright beads with relatively large particle sizes can only be loaded one per launch chamber. In the prior art, the loading of such single fireworks bright beads can only be done manually, and it is difficult to achieve automated production. The low efficiency often becomes the bottleneck process of the production line. Moreover, the particle size of such special effect bright beads is relatively large, and the flow mode of a large number of bright beads in the container is mainly rolling and jumping, which is different from the flow characteristics of other powdered pyrotechnics or small bright beads. It is difficult to ensure the reliability and safety of the work by borrowing or adopting the existing fireworks material loading equipment. Summary of the invention

[0003] In order to solve the above-mentioned drawbacks, the technical problem to be solved by the present invention is to provide a device for respectively loading single firework bright beads into multiple launching cavities of fireworks, so as to effectively improve the production efficiency. In order to solve the above technical problems, the technical solution adopted by the present invention is a single firework bright bead filling device, comprising a firework conveying mechanism and a lifting frame arranged above the firework, characterized in that a swing box is installed on the lifting frame, the firework on the conveying mechanism passes under the swing box, and the swing box is connected to the swing driving mechanism to switch among three states: a positive tilt state, a horizontal state, and a reverse tilt state; the bottom surface of the swing box is composed of a lower recess, a connecting portion, and a feeding portion, and the lower recess and the feeding portion are respectively located on opposite sides of the connecting portion; a telescopic plate is correspondingly arranged in the lower recess, and when the telescopic plate is retracted, the lower recess constitutes a concave cavity for accommodating a plurality of firework bright beads; the feeding portion comprises an upper template flush with the connecting portion, a switch plate is correspondingly arranged below the upper template, a plurality of upper die holes for allowing a single firework bright bead to pass through are distributed on the upper template, a plurality of switch holes for allowing a single firework bright bead to pass through are distributed on the switch plate, the switch holes are arranged correspondingly to the upper die holes, and the switch plate moves back and forth horizontally so that the corresponding switch holes and the upper die holes are switched between the two states of misalignment and overlap.

[0004] Its working process is: the switch plate is in a dislocated state, the horizontal swing box switches to a forward tilted state, the telescopic plate extends upward, the fireworks beads stored in the concave cavity of the lower concave roll to the unloading part through the connecting part, and are filled into each upper die hole one by one; the swing box switches to a reverse tilted state, the telescopic plate shrinks downward, and the redundant fireworks beads that cannot be filled into the upper die holes roll back to the lower concave through the connecting part; the swing box resets to a horizontal state, the fireworks on the conveying mechanism are positioned below the corresponding swing box, the swing box on the lifting frame descends close to the fireworks, the switch hole is aligned with each firing cavity port of the fireworks, the switch plate switches to a coincident state, and the fireworks beads in each upper die hole fall into the lower firing cavity through the switch hole. After one loading is completed, the swing box rises and resets to prepare for the next work.

[0005] In one embodiment, the swing box is provided with a vibrator to promote the rolling of the fireworks beads.

[0006] In one embodiment, the depth of the upper die hole is less than the diameter of the fireworks bead. Preferably, the depth of the upper die hole is less than 1.5 mm of the diameter of the fireworks bead. This can greatly reduce the reloading phenomenon and effectively improve the working reliability of the device.

[0007] In one embodiment, the upper die hole is provided with an inlet slope on one side close to the connecting portion, and a positioning step is provided below the lower end of the inlet slope, and the positioning step is located on the side wall of the upper die hole. This is conducive to the fireworks beads entering the upper die hole in a forward tilting state, and can effectively reduce the fireworks beads from escaping from the upper die hole in a reverse tilting state.

[0008] In one embodiment, the connection portion is provided with a plurality of steps gradually rising from the lower concave portion to the lower material portion, and the height of each step is less than the diameter of a single firework bead, so as to prevent the firework bead in the lower concave portion from flowing back to the lower material portion in a horizontal state, and ensure that the firework bead can enter the lower material portion from the lower concave portion in a forward tilted state.

[0009] In one embodiment, the tilt angle A of the swing box in the forward tilt state and the reverse tilt state is between 20 and 40 degrees, preferably between 30 and 35 degrees, and most preferably 33 degrees. The diameter of the fireworks beads is S, the depth of the upper mold hole is H, the diameter of the upper mold hole is R, and the height of the positioning step is L. The matching relationship between them is set according to the following ratio: S:R:H:L=15~17:18~20:12~14:9~11. It is best that S:R:H:L=16:19:13:10.

[0010] The beneficial effects of the present invention are that the present invention provides an automated device for respectively loading single firework beads into multiple launching cavities of fireworks. The beads move smoothly and in place, which can eliminate the safety hazards caused by the collision of the beads and avoid the breakage of the beads; it can eliminate the phenomenon of reloading of firework beads of various specifications, ensure that the firework beads enter the upper mold hole in the forward tilted state, and avoid the firework beads from leaving the upper mold hole in the reverse tilted state; therefore, the above technical scheme can effectively improve the production efficiency on the basis of ensuring the reliability and safety of the filling work.

[0011] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

[0012] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0013] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0014] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0015] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0017] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0019] Figure 2 This is a schematic diagram of the swing box and lifting frame structure of Example 1.

[0020] Figure 3 This is a schematic diagram of the swing box structure of Example 1.

[0021] Figure 4 This is a schematic diagram of the bottom structure of the swing box and the lifting frame of Example 1.

[0022] Figure 5 This is a structural schematic diagram of the swing box of Example 1 in the forward tilting state.

[0023] Figure 6 It is a structural schematic diagram of the swing box of Example 1 in the reverse tilt state.

[0024] Figure 7 It is a partial enlarged structural schematic diagram of the upper template of Example 1 (the firework beads are not shown).

[0025] Figure 8 It is a partial enlarged structural schematic diagram of the upper template of Example 1 (showing the firework beads).

[0026] Fig. 9 This is a schematic diagram of the swing box structure of Example 2. DETAILED DESCRIPTION

[0027] Example 1: See attached Figure 1-8 , reflecting a specific structure of the present invention. The single firework bright bead filling device comprises a conveyor belt 2 of fireworks 1 and a lifting frame 3 arranged above the fireworks 1, a swing box 4 is installed on the lifting frame 3, the fireworks 1 on the conveyor belt 2 pass under the swing box 4, and the swing box 4 is connected to the swing driving mechanism. In the example, the rotating shaft 401 of the swing box 4 is suspended on the base plate 301 through the cantilever 402, the four corners of the base plate 301 are installed on the optical axis guide rail 303 through the sliding seat 302, and the lifting cylinder 304 drives the swing box 4 to move up and down along the optical axis guide rail 303 through the base plate 301. The swing cylinder 403 is installed on the base plate 301, and the swing cylinder 403 is hinged to one end of the swing box 4 through the rocker arm 404, thereby pushing the swing box 4 to rotate around the rotating shaft, and the swing cylinder 403 drives the swing box 4 to switch between the three states of forward tilting state, horizontal state, and reverse tilting state through the different extension strokes of its piston rod.

[0028] The bottom surface of the swing box 4 is composed of a recessed portion 41, a connecting portion 42 and a lower material portion 43, and the recessed portion 41 and the lower material portion 43 are respectively located on opposite sides of the connecting portion 42; in the example, the swing cylinder 403 is hinged to one end of the swing box 4 close to the lower material portion 43 through a rocker arm 404.

[0029] In the example, a telescopic plate 411 is correspondingly arranged in the lower concave portion 41, a telescopic cylinder 413 and a guide sleeve 415 are arranged on a bottom plate 412 below the telescopic plate 411, a guide post 414 of the telescopic plate 411 is installed in the guide sleeve 415, and the telescopic cylinder 413 drives the telescopic plate 411 to telescope up and down along the guide sleeve 415. When the telescopic plate 411 is retracted downward, a concave cavity for accommodating a plurality of fireworks beads is formed in the lower concave portion 41.

[0030] In the example, the blanking portion 43 includes an upper template 431 flush with the connecting portion 42, a switch plate 432 is correspondingly arranged below the upper template 431, a plurality of upper mold holes 433 are distributed on the upper template 431 to allow a single firework bright bead 5 to pass through, a plurality of switch holes 434 are distributed on the switch plate 432 to allow a single firework bright bead 5 to pass through, and the switch holes 434 are arranged correspondingly to the upper mold holes 433. The switch cylinder 435 drives the switch plate 432 to move horizontally back and forth so that the corresponding switch holes 434 and the upper mold holes 433 switch between the two states of misalignment and overlap. In the example, a lower template 436 is also arranged below the switch plate 432, and a lower mold hole 437 is arranged on the lower template 436 corresponding to the upper mold hole 433.

[0031] In the example, the swing box 4 is provided with a vibrator 6 to promote the rolling of the fireworks beads and avoid the sticking of the beads in the positive and reverse tilt states, resulting in poor movement.

[0032] The working process of the above device is as follows: the switch plate 432 is in a dislocated state, the horizontal swing box 4 is switched to a forward tilted state, and at the same time, the telescopic plate 411 extends upward to a position roughly flush with the connecting portion 42, and the fireworks beads stored in the concave cavity of the lower recessed portion 41 roll to the unloading portion 43 through the connecting portion 42, and are filled into each upper die hole 433 one by one; the swing box 4 is switched to a reverse tilted state, the telescopic plate 411 shrinks downward, and the redundant fireworks beads that cannot be filled into the upper die hole 433 roll back to the lower recessed portion 41 through the connecting portion 42; the swing box 4 is reset to a horizontal state, and the fireworks 1 on the conveyor belt 2 is now positioned below the corresponding swing box 4, the swing box 4 on the lifting frame 3 descends close to the fireworks 1, the lower mold plate 436 abuts against the upper surface of the fireworks 1, and the lower mold hole 437 is aligned with each launch cavity port of the fireworks 1, and the switch plate 432 is switched to a overlapped state, and the fireworks beads in each upper die hole 433 fall into the lower launch cavity through the switch hole 434 and the lower mold hole 437 in turn. After one loading is completed, the switch plate 432 is reset to the dislocated state, and the swing box 4 rises and resets to prepare for the next work.

[0033] Generally speaking, due to the working process of redundant bright beads returning to the lower concave portion 41, the depth of the upper die hole 433 should be sufficient to accommodate the entire firework bright bead or even deeper, so as to ensure that the firework bright bead will not fall out of the upper die hole 433. However, in practice, it is found that such a setting will lead to the phenomenon of reloading, that is, more than one firework bright bead is loaded in some firing chambers of the firework 1. Although not all fireworks 1 will have this problem, and each firework 1 may only have a problem in a single firing chamber, based on the role of the special effect bright bead, this phenomenon will seriously affect the firework effect, making the working reliability of the equipment questionable and affecting its promotion and application.

[0034] Research and analysis found that the diameter of the firework bead is S, the thickness of the upper mold plate 431 (or the depth of the upper mold hole 433) is H, and the diameter of the upper mold hole 433 is R. Since the upper mold hole 433 must allow a single firework bead to pass smoothly, the aperture R of the upper mold hole 433 must be larger than the diameter S of a single firework bead 5. When H≥S, there must be a certain amount of redundant space between the spherical single firework bead 5 and the cylindrical cavity. When tilted in the reverse direction, the excess firework beads are stuck in the redundant space and do not return to the lower recess 41. When horizontal, they fall into the launch cavity together, resulting in the above-mentioned reloading phenomenon. In the experiment, it was found that setting the depth H of the upper mold hole to be smaller than the diameter S of the firework bead can greatly reduce the above-mentioned reloading phenomenon and ensure that the redundant bead will not fall out of the upper mold hole 433 during the process of returning to the lower recess 41, effectively improving the working reliability of the device. In particular, according to the statistical observation of the experimental samples, setting the depth H of the upper mold hole 433 to be 1.5 mm smaller than the diameter S of the firework beads is an experimental data with better comprehensive performance.

[0035] In the example, the upper die hole 433 is provided with an inlet slope 4331 on one side close to the connecting portion 42, and below the lower end of the inlet slope 4331 is a positioning step 4332, which is located on the side wall of the upper die hole 433. This is conducive to the fireworks beads entering the upper die hole in the forward tilting state, and can effectively prevent the fireworks beads from escaping from the upper die hole in the reverse tilting state.

[0036] It was found in the experiment that the tilt angle A of the swing box in the forward tilt state and the reverse tilt state is between 20 and 40 degrees, preferably between 30 and 35 degrees, and most preferably 33 degrees. The diameter of the fireworks beads is S, the thickness of the upper mold plate (or the depth of the upper mold hole) is H, the diameter of the upper mold hole is R, and the height of the positioning step is L. The matching relationship between them is set according to the following ratio: S:R:H:L=15~17:18~20:12~14:9~11. It is best to be S:R:H:L=16:19:13:10. It is an experimental data with better comprehensive performance. For example, in the example, S is 8 mm, R is 9.5 mm, H is 6.5 mm, and L is 5 mm.

[0037] In actual operation, it is found that the present invention adopts the above preferred solution, which can prevent the reloading of fireworks beads of various specifications, ensure that the fireworks beads enter the upper die hole in the forward tilt state, and prevent the fireworks beads from leaving the upper die hole in the reverse tilt state. It also ensures that the beads move smoothly and in place, which can prevent safety hazards caused by the collision of the beads and prevent the beads from breaking.

[0038] Example 2: See attached Fig. 9, reflecting another specific structure of the present invention. The difference from Example 1 is that the connecting portion 701 is provided with a plurality of steps 704 gradually rising from the lower concave portion 702 to the lower material portion 703, and the height of each step 704 is less than the diameter of a single firework bead. This prevents the firework bead in the lower concave portion from flowing back to the lower material portion in a horizontal state, and ensures that the firework bead can enter the lower material portion from the lower concave portion in a positive tilt state.

[0039] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and describes these embodiments in detail in conjunction with the accompanying drawings in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is only limited by the claims and their full scope and equivalents, and is not limited by the specific embodiments disclosed.

Claims

1. A single firework bead loading device, comprising a firework conveying mechanism and a lifting frame arranged above the firework, characterized in that: A swing box is installed on the lifting frame, and the fireworks on the conveying mechanism pass under the swing box. The swing box is connected to the swing driving mechanism to switch among three states: a forward tilting state, a horizontal state, and a reverse tilting state; the bottom surface of the swing box is composed of a lower recess, a connecting portion, and a feeding portion, and the lower recess and the feeding portion are respectively located on opposite sides of the connecting portion; a telescopic plate is correspondingly arranged in the lower recess, and when the telescopic plate is retracted, the lower recess forms a concave cavity for accommodating a number of fireworks beads; the feeding portion includes an upper template flush with the connecting portion, and a switch plate is correspondingly arranged under the upper template, and a number of upper mold holes for allowing a single fireworks bead to pass through are distributed on the upper template, and a number of switch holes for allowing a single fireworks bead to pass through are distributed on the switch plate, and the switch holes are correspondingly arranged with the upper mold holes, and the switch plate reciprocates horizontally so that the corresponding switch holes and the upper mold holes are switched between the two states of misalignment and overlap; The working process is as follows: the switch plate is in a dislocated state, the horizontal swing box is switched to a forward tilting state, the telescopic plate extends upward, and the fireworks bright beads stored in the concave cavity of the lower concave part roll to the unloading part through the connecting part, and are filled into each upper die hole one by one; the swing box is switched to a reverse tilting state, the telescopic plate retracts downward, and the redundant fireworks bright beads that cannot be filled into the upper die holes roll back to the lower concave part through the connecting part; The swing box is reset to a horizontal state, the fireworks on the conveying mechanism are positioned below the swing box, the swing box on the lifting frame descends close to the fireworks, the switch hole is aligned with the ports of each launching cavity of the fireworks, the switch plate is switched to the overlapping state, and the fireworks beads in each upper mold hole fall into the launching cavity below through the switch hole.

2. A single firework bright bead filling device as claimed in claim 1, characterized in that: The depth of the upper die hole is smaller than the diameter of the firework bright bead.

3. A single firework bright bead filling device as claimed in claim 2, characterized in that: A hole entry slope is provided on one side of the upper die hole close to the connecting portion, and a positioning step is provided below the lower end of the hole entry slope, and the positioning step is located on the side wall of the upper die hole.

4. A single firework bright bead filling device as claimed in claim 3, characterized in that: The connecting portion is provided with a plurality of steps which gradually rise from the lower concave portion to the lower material portion, and the height of each step is smaller than the diameter of a single firework bright bead.

5. A single firework bright bead filling device as claimed in claim 1, characterized in that: The tilt angle A of the swing box in the forward tilt state and the reverse tilt state is between 20 and 40 degrees.

6. A single firework bright bead filling device as claimed in claim 5, characterized in that: The tilt angle A of the swing box in the forward tilt state and the reverse tilt state is 33 degrees.

7. A single firework bright bead filling device as claimed in claim 3, characterized in that: The inclination angle A of the swing box in the forward tilting state and the reverse tilting state is between 30 and 35 degrees, the diameter of the firework beads is S, the depth of the upper mold hole is H, the diameter of the upper mold hole is R, and the height of the positioning step is L. The matching relationship between them is set according to the following ratio: S:R:H:L=15~17:18~20:12~14:9~11.

8. A single firework bright bead filling device as claimed in claim 7, characterized in that: S:R:H:L=16:19:13:

10.

9. A single firework bright bead filling device as claimed in any one of claims 1 to 8, characterized in that: The swing box is provided with a vibrator.

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