An automatic loading mechanism for fireworks

Abstract

The present invention provides an automatic loading mechanism for fireworks, which includes a bottom plate, a slide plate device, a plug rod device and a magazine. The slide plate device is arranged on the bottom plate, and a metering plate is arranged on the bottom plate. The magazine, the plug rod device and the metering plate are arranged on the slide plate device and can be displaced along with the slide plate device. When the slide plate device is displaced, the bottom of the magazine and the bottom scraper of the plug rod device can respectively correspond to the metering plate, and the positioning holes arranged on the bottom scraper are in mutual coincidence with the metering holes of the metering plate. A gate device for controlling the opening and closing of the metering holes on the metering plate is arranged at the bottom of the bottom plate. The overall structure of this automatic loading mechanism for fireworks is simple, easy to maintain, can load quantitatively in a stable, accurate and safe manner, and the metering unit has a simple and practical structure and can be replaced quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of firecracker loading, and particularly to an automatic firecracker loading mechanism. Background Art

[0002] The production process of firecrackers is numerous, and the inner cylinder of firecrackers contains flammable and explosive drug components. The raw materials have great dust hazards and explosion risks. Heavy work mostly relies on manual operation with drugs, which is somewhat dangerous and has low production efficiency. At present, there are already some R & D equipment on the market. Limited by technology and production processes, it is difficult to switch between different production specifications. The equipment has poor dust prevention and it is not easy to clean the powder. At the same time, there are also certain potential safety hazards.

[0003] The inner cylinder charging mechanism of firecrackers has a large equipment space. At present, there are already some R & D equipment on the market, and there are mainly the following problems in the loading process:

[0004] 1) Traditional manual and artificial production has relatively large potential safety hazards;

[0005] 2) The existing automatic loading and quantitative feeding adopts disk rotary quantitative feeding and end face rotary scraping, which is an open type. The powder is easy to leak, and the equipment is not easy to clean and maintain;

[0006] 3) It is troublesome to replace the quantitative unit of some existing equipment, and there are even potential safety hazards during replacement Summary of the Invention

[0007] In view of a series of technical problems existing in the prior art in the inner cylinder charging of firecrackers, such as large potential safety hazards, easy leakage of powder, difficult cleaning and maintenance, and troublesome replacement of the quantitative unit, the present invention proposes an automatic firecracker loading mechanism to solve the above technical problems.

[0008] The present invention proposes an automatic firecracker loading mechanism, which includes a bottom plate, a slide plate device, a plug rod device and a feed bin. The slide plate device is arranged on the bottom plate. A quantitative plate is detachably arranged on the bottom plate. The feed bin, the plug rod device and the quantitative plate are arranged on the slide plate device and can move with the slide plate device. When the slide plate device moves, the bottom of the feed bin and the bottom scraper of the plug rod device can respectively correspond to the quantitative plate, and the positioning holes arranged on the bottom scraper are mutually aligned with the quantitative holes of the quantitative plate. A gate device for controlling the opening and closing of the quantitative holes on the quantitative plate is arranged at the bottom of the bottom plate. By setting the detachable quantitative plate, it is possible to quickly change the quantitative plate according to the raw materials to meet the needs of loading changes.

[0009] In some specific embodiments, the upper part of the feed bin is provided with at least one inverted conical funnel structure, and a guide plate is inclinedly arranged in the feed bin. With this setting, it is convenient for feeding and can control the falling material direction to avoid the situation of falling material and generating dust.

[0010] In some specific embodiments, the skateboard device includes guide rails and a first cylinder disposed on both sides of the bottom plate. The plug rod device and the bin are slidably disposed on the guide rails through a connecting plate at the same time, and the first cylinder is connected to the connecting plate to drive the plug rod device and the bin to displace along the guide rails. With this arrangement, the positions of the plug rod device and the bin relative to the metering plate can be moved and switched to achieve the feeding and filling operations.

[0011] In some specific embodiments, the plug rod device includes a bracket, a second cylinder, and a punch needle group. The second cylinder is disposed above the bracket, the punch needle group is connected to the cylinder, and each punch needle of the punch needle group corresponds to a positioning hole of the scraper one by one. With this arrangement, it is convenient for the punch needles of the punch needle group to pass through the positioning holes of the scraper and press the raw materials on the metering plate into the corresponding gun cakes.

[0012] In some specific embodiments, the gate device includes a third cylinder and a closing plate symmetrically disposed on both sides below the bottom plate. The third cylinder is connected to the closing plate to push the closing plate to displace to close the opening of the metering hole at the lower part of the metering plate. With this arrangement, the opening of the metering hole at the lower part of the metering plate can be closed to prevent the raw materials from falling prematurely.

[0013] In some specific embodiments, a gun cake positioning device is further disposed below the metering plate of the bottom plate, and through holes corresponding to the metering holes of the metering plate are provided on the gun cake positioning device. With this arrangement, the punch needles on the punch needle group can press the raw materials into the gun cakes.

[0014] In some specific embodiments, the gate device is disposed between the bottom plate and the gun cake positioning device, and guide blocks for the displacement of the closing plate are provided on the gun cake positioning device. With this arrangement, the closing plate can reciprocate along the guiding structure.

[0015] In some specific embodiments, a plurality of positioning plates are provided at the bottom of the gun cake positioning device, and the plurality of positioning plates form the peripheral shape of the gun cake. With this arrangement, the precise positioning of the gun cake during filling can be ensured.

[0016] In some specific embodiments, the thickness dimension of the closing plate is equivalent to the distance between the metering plate and the gun cake positioning device. With this arrangement, the closing effect of the closing plate can be ensured, and a large amount of residual materials can be prevented from leaking out.

[0017] In some specific embodiments, a residual material groove is further opened on the surface of one end of the bottom plate, and a collecting box is provided on the back surface of the bottom plate below the residual material groove. With this arrangement, the remaining materials can be conveniently and quickly cleaned up.

[0018] The present invention provides an automatic loading mechanism for fireworks. Its drug-related part has a simple structure, and the quantitative unit is conveniently installed, can be quickly disassembled and replaced. During the production and use process, there is less raw material leakage, and the remaining materials can be quickly cleaned up after the production ends, ensuring stable product quality and the safety of equipment maintenance. Currently, the mixing disc rotates for quantitative material taking and the end face rotates for scraping material, with a complex structure and high cost. Each quantitative hole may have uneven material taking under the action of centrifugal force. This application uses a planar moving storage bin for material taking, with a simple structure, convenient and fast movement, and can quickly change the quantitative plate according to the raw materials to meet the needs of loading changes. This application uses a storage bin moving for scraping and taking materials, with a fixed quantitative plate and a planar scraper for material taking. The volume and amount of each quantitative material taking are the same, ensuring the consistency of the dosage of various raw materials in each single sleeve within each firework cake; the drug-related components are easy to process, and lightweight raw materials such as aluminum can be used, with a simple structure and low production cost, ensuring the economy and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate the embodiments and, together with the description, are used to explain the principles of the present invention. Other embodiments and many of the intended advantages of the embodiments will be readily apparent, as they become better understood by reference to the following detailed description. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present invention will become more apparent:

[0020] Figure 1 is a schematic structural diagram of the feeding station of the automatic loading mechanism for fireworks according to an embodiment of the invention;

[0021] Figure 2 is a schematic structural diagram of the loading station of the automatic loading mechanism for fireworks according to a specific embodiment of the invention;

[0022] Figure 3 is a schematic structural diagram of the bottom plate according to a specific embodiment of the invention;

[0023] Figure 4 is a schematic structural diagram of the bottom of the automatic loading mechanism for fireworks according to a specific embodiment of the invention;

[0024] Figure 5 is a schematic structural diagram of the gate device according to a specific embodiment of the invention.

[0025] The meanings of the numbers in the figure are as follows: 100 - silo, 101 - guide plate, 200 - inserting rod device, 201 - first cylinder, 202 - bracket, 203 - punch needle group, 204 - scraper, 300 - sliding plate device, 301 - second cylinder, 302 - guide rail, 303 - connecting plate, 400 - bottom plate, 401 - metering plate, 402 - residue chute, 403 - aggregate box, 500 - gate device, 501 - third cylinder, 502 - closing plate, 600 - firecracker cake positioning device, 601 - positioning plate, 602 - guide block. Detailed implementation mode

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than limiting the invention. In addition, it should be noted that, for the sake of description, only the parts related to the relevant invention are shown in the drawings.

[0027] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and embodiments.

[0028] Figure 1 The structural schematic diagram of the feeding station of the firecracker automatic loading mechanism according to an embodiment of the invention is shown. As Figure 1 shown, the firecracker automatic loading mechanism includes a silo 100, an inserting rod device 200, a sliding plate device 300 and a bottom plate 400. The silo 100, the inserting rod device 200 and the sliding plate device 300 are all arranged on the bottom plate 400. Specifically, the silo 100 and the inserting rod device 200 are adjacent and are jointly arranged on the sliding plate device 300 on the bottom plate 400, so as to realize the movement of the silo 100 and the inserting rod device 200. A metering plate 401 is detachably arranged on the bottom plate 400. The metering plate 401 is used to receive the falling material from the silo 100 and ensure that the material in each metering hole on the metering plate 401 is of a predetermined volume. The detachable setting can facilitate the replacement of the metering plate 401, and meet the requirements of different metering feeding through the specifications of different metering holes. The position of the metering plate 401 is set on the displacement route of the silo 100 and the inserting rod device 200 on the sliding plate device 300, so that when the silo 100 and the inserting rod device 200 are displaced on the sliding plate device 300, the metering plate 401 can respectively cooperate with the discharging part of the silo 100 and the working part of the inserting rod device 200 to realize the operations of metering feeding and loading. Figure 1 In the figure, the metering plate 401 is located below the discharging part of the silo 100 and can receive the material freely falling from the upper part of the silo 100.

[0029] Continue to refer to Figure 2 , Figure 2The structural schematic diagram of the loading station of the fireworks automatic loading mechanism according to a specific embodiment of the invention is shown. As Figure 2 shown, at this time, after the material bin 100 fills the metering holes on the metering plate 401 with falling materials, the slide plate device moves so that the plug rod device 200 is located directly above the metering plate 401 to perform the loading operation. The plug rod device 200 includes a first cylinder 201, a bracket 202, a punch needle group 203 and a scraper 204. The first cylinder 201 is arranged at the upper part of the bracket. The scraper 204 is arranged at the bottom of the bracket 202 and fits with the bottom plate 400. The punch needle group 203 is connected to the first cylinder 201 and arranged between the upper part of the bracket 202 and the scraper 204. Through holes corresponding to the metering holes of the metering plate 401 on the bottom plate 400 are provided on the scraper 204. Each punch needle of the punch needle group 203 corresponds to the through hole and the metering hole one by one to ensure that the materials in the metering holes can be pressed into the firework cakes to be filled through the punch needles.

[0030] In a specific embodiment, the upper part of the material bin 100 is arranged in a funnel-shaped structure, and there is at least an inverted conical inclined surface in this funnel-shaped structure. In this embodiment, this inclined surface is arranged on the side close to the plug rod device 200, and a guiding plate 101 is also arranged inside the material bin 100. The guiding plate 101 can guide the materials during the falling of the materials to avoid a large amount of dust generated when the materials directly fall into the material bin 100.

[0031] In a specific embodiment, the slide plate device 300 includes two sets of second cylinders 301, guide rails 302 and connecting plates 303 that are arranged in parallel on both sides of the material bin 100 and the plug rod device 200 on the bottom plate 400. The connecting plate 303 is fixedly connected to both sides of the material bin 100 and the plug rod device 200. The second cylinder 301 is connected to the connecting plate 303 to drive the material bin 100 and the plug rod device 200 to displace along the track 302.

[0032] In a specific embodiment, Figure 3 The structural schematic diagram of the bottom plate according to a specific embodiment of the invention is shown. As Figure 3 shown, a groove for placing the metering plate 401 is provided on the bottom plate 400, which is convenient for the disassembly and replacement of the metering plate 401. A waste material groove 402 is also arranged at one end of the bottom plate 400. The arrangement of the waste material groove 402 can scrape the waste materials on the metering plate 401 to the waste material groove 402 through the scraper 204 that fits with the bottom plate 400 at the bottom of the plug rod device 200 when the material bin 100 and the plug rod device 200 move on the bottom plate 400, avoiding the leakage of raw materials.

[0033] In a specific embodiment, a gate device 500 and a firework cake positioning device 600 are also arranged on the bottom surface of the bottom plate 400. Figure 4 The structural schematic diagram of the bottom of the fireworks automatic loading mechanism according to a specific embodiment of the invention is shown. As Figure 4As shown, the gate device 500 is disposed between the cake positioning device 600 and the bottom plate 400. The gate device 500 includes a pair of third cylinders 501 arranged oppositely and a closing plate 502. A plurality of positioning plates 601 are provided on the bottom surface of the cake positioning device 600. The plurality of positioning plates 601 form the outer shape structure of the cake, and through holes corresponding to the hole positions on the cake are further provided on the bottom surface of the cake positioning device. The through holes correspond one by one to the metering holes on the metering plate 401. The third cylinders 501 provided on the left and right sides are connected to the closing plate 502 and can drive the closing plates 502 on the left and right sides to move towards each other and close the through holes on the bottom surfaces of the metering plate 401 and the cake positioning device 600 when the two closing plates 502 are closed, so as to prevent the material from falling in advance.

[0034] In a specific embodiment, continue to refer to Figure 5 , Figure 5 which shows a schematic structural diagram of the gate device according to a specific embodiment of the invention. As Figure 5 shown, a pair of parallel guide blocks 602 are provided between the cake positioning device 600 and the bottom plate 400. The closing plate 502 reciprocates between the two guide blocks 602 under the drive of the third cylinder 501 to close the metering holes on the metering plate 401. The thickness dimension of the closing plate 502 is equivalent to the distance between the metering plate 401 and the cake positioning device 600, that is, the closing plate 502 fits with the metering plate 401 and the cake positioning device 600, so as to facilitate closing the metering holes on the metering plate 401 by the closing plate 502. After the cake is positioned, the third cylinder 501 is controlled to open the closing plate 502 to complete the filling operation.

[0035] In a specific embodiment, a collecting box 403 is provided below the lower part of the bottom plate 400 and below the residue tank 402 for collecting the residues scraped from the bottom plate 400 to the residue tank 402 when the scraper 204 moves, so as to prevent the raw materials from leaking and can quickly clean the remaining materials.

[0036] The automatic loading mechanism of the fireworks can accurately distribute the production raw materials into the empty fireworks cylinders quickly and evenly according to the required dosage, with accurate material taking. The fixed quantitative unit can reduce the friction of the raw materials and enhance the safety of the mechanism in use. By setting the quantitative plate to be quickly replaceable, the setting of different sizes and dosages of raw materials can be realized. The technological process of the automatic filling equipment for fireworks production is as follows: When the material bin 100 moves above the quantitative plate 401, the material switch is started, and the material freely falls from top to bottom through quantitative transportation. During this process, the uniformly distributed quantitative holes in the quantitative plate 401 are fully and evenly filled. After being completely filled after a certain period of time, a signal is given to start the slide plate device 300 to drive the material bin 100 and the inserting rod device 200 to move until the central hole of the scraping plate 204 at the bottom of the inserting rod device 200 completely coincides with the central hole of the quantitative plate 401 of the quantitative device. At this time, the firework cake is also sent by the conveyor belt and lifted by the lifting cylinder to the designated position, that is, within the area formed by the positioning plate of the firework cake positioning device, and the center of the firework cake is aligned with the set center. After detecting the signal, the third cylinder 501 of the gate device 500 is started to open the closing plates 502 of the left and right gates. After the closing plates 502 are opened in place, a signal is given to start the first cylinder 201 in the inserting rod device 200 to make the punching needle work downward. The n punching needles in the punching needle group 203 punch down to completely unload the material from the quantitative holes into the inner cylinder of the firework cake. After the punching and filling are completed, a signal is given, and the punching needles are retracted. After retraction, a signal is given, the gate device 500 is started, the left and right third cylinders 501 are pushed out, the closing plates 502 of the gates are closed, and the n quantitative holes in the quantitative plate 401 are completely closed. At this time, a signal is given to start the second cylinder 301 in the slide plate device 300, and the material bin 100, the inserting rod device 200, etc. move back to the starting position, that is, the quantitative plate 401 is completely inside the material bin 100. One loading process is completed, and then the next new cycle of operation begins. The above signals can be realized by sensors set at the corresponding operation positions.

[0037] The automatic loading structure of the fireworks in this application can quickly and evenly distribute the raw materials into the inner cylinder of the firework cake according to the required dosage, with accurate quantification; the quantitative plate can be quickly replaced to realize the production corresponding to different sizes of raw materials and different dosages; the overall structure and the structure of the quantitative unit are simple, and the manufacturing cost and operation and maintenance cost are low.

[0038] The above description is only the preferred embodiment of the present invention and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present invention.

Claims

1. An automatic loading mechanism for fireworks, characterized in that, it includes a bottom plate, a slide plate device, a plug rod device and a magazine. The slide plate device is arranged on the bottom plate. A quantitative plate is detachably arranged on the bottom plate. The magazine, the plug rod device and the quantitative plate are arranged on the slide plate device and can be displaced along with the slide plate device. When the slide plate device is displaced, the bottom of the magazine and the bottom scraper of the plug rod device can respectively correspond to the quantitative plate, and the positioning holes arranged on the bottom scraper coincide with the quantitative holes of the quantitative plate. A gate device for controlling the opening and closing of the quantitative holes on the quantitative plate is arranged at the bottom of the bottom plate; The slide plate device includes guide rails arranged on both sides of the bottom plate and a first cylinder. The plug rod device and the magazine are simultaneously slidably arranged on the guide rails through a connecting plate. The first cylinder is connected to the connecting plate to drive the plug rod device and the magazine to displace along the guide rails; The plug rod device includes a bracket, a second cylinder and a set of punching needles. The second cylinder is arranged above the bracket. The set of punching needles is connected to the cylinder. Each punching needle of the set of punching needles corresponds one by one to the positioning hole of the scraper; The gate device includes a third cylinder and a closing plate symmetrically arranged on both sides below the bottom plate. The third cylinder is connected to the closing plate to push the closing plate to displace to close the opening of the quantitative hole at the lower part of the quantitative plate; A firecracker cake positioning device is also arranged below the quantitative plate of the bottom plate. Through holes corresponding to the quantitative holes of the quantitative plate are arranged on the firecracker cake positioning device.

2. The automatic loading mechanism for fireworks according to claim 1, characterized in that, the upper part of the magazine is at least provided with a funnel structure with an inverted cone, and a guide plate is inclinedly arranged in the magazine.

3. The automatic loading mechanism for fireworks according to claim 1, characterized in that, the gate device is arranged between the bottom plate and the firecracker cake positioning device, and guide blocks for the displacement of the closing plate are arranged on the firecracker cake positioning device.

4. The automatic loading mechanism for fireworks according to claim 1, characterized in that, a plurality of positioning plates are arranged at the bottom of the firecracker cake positioning device, and the plurality of positioning plates form the peripheral shape of the firecracker cake.

5. The automatic loading mechanism for fireworks according to claim 1, characterized in that, the thickness dimension of the closing plate is equivalent to the distance between the quantitative plate and the firecracker cake positioning device.

6. The automatic loading mechanism for fireworks according to claim 1, characterized in that, a waste material groove is also opened on the surface of one end of the bottom plate, and a collecting box is arranged on the back of the bottom plate below the waste material groove.

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