Precision fireworks automatic charging equipment

Abstract

The present invention belongs to the technical field of fireworks production, and provides a precision fireworks automatic charging device, including a feeding mechanism for conveying gunpowder and a charging mechanism for filling gunpowder; the feeding mechanism includes a hopper, a plurality of feeding belts arranged at the bottom of the hopper, and a drug guiding mold arranged at one end of the feeding belt, each feeding belt is rotatably arranged in parallel at the bottom of the hopper, each feeding belt is provided with an inwardly concave material storage groove, and the drug guiding mold is provided with a plurality of drug guiding channels corresponding to each material storage groove at intervals; the charging mechanism includes a charging mold arranged at the bottom of the drug guiding mold and a paper tube clamp arranged at the bottom of the charging mold, and the charging mold is provided with a plurality of filling channels corresponding to each drug guiding channel at intervals, and the paper tube clamp is provided with a receiving groove for receiving the paper tube, and the receiving groove is located directly below the filling channel. The precision fireworks automatic charging device of the present invention can replace manual automatic filling of gunpowder of fireworks, and has the advantages of high filling efficiency and precision, and reduced safety hazards.

Description

Technical Field

[0001] The invention relates to the technical field of fireworks production, and in particular to a precise automatic charge charging device for fireworks. Background Art

[0002] Combination fireworks are fireworks products composed of multiple single tubes. One single tube is one shot. The overall appearance of the outer tube of the combination fireworks is generally a rounded prism or cylinder. There are several charging cavities evenly distributed on the main body. The upper end of the charging cavity is open and the open end is closed. The charging cavity contains the pyrotechnics and the effect inner tube. The combination of multiple fireworks paper tubes is called a tube cake. Each fireworks paper tube of the tube cake needs to be filled with pyrotechnics. Pyrotechnics are flammable and explosive. The filling process is the most dangerous step in the fireworks production process. When filling the medicine, friction should be reduced as much as possible to avoid accidents. At the same time, in the production process, there are strict standards for the amount of medicine added. A small amount will cause the effect tube in the fireworks paper tube to fail to reach the predetermined launch height, forming a dangerous low-altitude explosion; a large amount will cause the tube to explode, resulting in the collapse of the overall structure of the fireworks, which is easy to cause serious accidents such as injury, destruction of property, and fire.

[0003] Existing methods of loading pyrotechnic powder are mostly done manually. During loading, the loading personnel are required to wear a full set of protective clothing and perform loading operations in an anti-static and closed environment. In order to avoid dust flying and explosion, the loading environment is in a windless state (it is impossible to install fans, air conditioners and other means of air supply and cooling). The powder loading efficiency is low, the amount of powder cannot be guaranteed, the working environment is harsh, and the separation of people and powder cannot be achieved, posing a safety hazard.

[0004] The technical problem to be solved by the present application is: how to solve the problems of low efficiency, high work intensity and potential safety hazards in the existing fireworks gunpowder filling. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a precision fireworks automatic charging device, which can replace manual work to achieve automatic charging of fireworks gunpowder and has the characteristics of high charging efficiency and high safety performance.

[0006] The technical solution adopted by the present invention is: a precision fireworks automatic charging device, including a feeding mechanism for conveying gunpowder and a charging mechanism for filling gunpowder;

[0007] The feeding mechanism includes a hopper, a plurality of feeding belts arranged at the bottom of the hopper, and a medicine guiding mold arranged at one end of the feeding belts, each feeding belt is rotatably arranged in parallel at the bottom of the hopper, each feeding belt is provided with an inwardly concave material storage groove, and the medicine guiding mold is provided with a plurality of medicine guiding channels corresponding to each material storage groove at intervals;

[0008] The medicine charging mechanism comprises a medicine charging mold arranged at the bottom of the medicine guiding mold and a paper tube clamp arranged at the bottom of the medicine charging mold. The medicine charging mold is provided with a plurality of filling channels corresponding to each medicine guiding channel at intervals. The paper tube clamp is provided with a receiving groove for receiving the paper tube, and the receiving groove is located directly below the filling channel.

[0009] The precision fireworks automatic charging equipment of the present invention can replace manual automatic filling of fireworks gunpowder, and has the advantages of high filling efficiency and precision and reduced safety hazards; fireworks gunpowder is added into a hopper, and a feeding belt circulates at the bottom of the hopper, and the gunpowder in the hopper falls into the storage groove of the feeding belt from the opening at the bottom of the hopper, and when the feeding belt rotates to the end, the gunpowder in the storage groove will fall into the medicine guiding channel inside the medicine guiding mold due to the effect of gravity, and then flow through the filling channel inside the charging mold, and finally the gunpowder in each filling channel flows into the corresponding charging cavity of the fireworks paper tube arranged on the paper tube clamp, so as to realize automatic filling of gunpowder; and the amount of filling gunpowder is flexibly adjustable, and the filling amount of gunpowder can be adjusted by adjusting the rotation speed of the feeding belt or the filling time of a single fireworks paper tube.

[0010] In some embodiments, the feeding mechanism includes a plurality of feeding power members, each of which drives a portion of the feeding belt to rotate, so as to realize synchronous rotation or asynchronous rotation of each portion of the feeding belt.

[0011] By adopting the above technical solution, the corresponding number of feeding belts can be selected to rotate during filling according to the number of charging cavities of the fireworks paper tubes to be filled, so that the gunpowder filling of the device is flexible and adjustable, and has good versatility.

[0012] In some embodiments, the drug guiding mold includes a guiding block, a first guide plate and a second guide plate. The guiding block is connected to the feeding belt. The side of the guiding block close to the feeding belt is provided with an arc surface matching the feeding belt, and the guiding block is provided with a material guiding groove connected with the material storage groove. The first guide plate and the second guide plate are arranged opposite to each other, and grooves are provided on opposite sides of the first guide plate and the second guide plate. The first guide plate and the second guide plate are spliced ​​so that the grooves on both sides constitute a transfer groove connected with the material guiding groove, and the material guiding groove and the transfer groove are connected to form a drug guiding channel.

[0013] By adopting the above technical scheme, the curved surface on the side of the guide block allows the guide block and the feeding belt to fit as closely as possible, thereby reducing the loss of gunpowder when it is transferred from the storage trough to the guide trough; the transfer groove formed by the first guide plate and the second guide plate can change the distance between two adjacent channels, so that the channel matches the filling channel on the subsequent charging mold. The transfer groove is divided into two halves and respectively arranged on the first guide plate and the second guide plate, which can reduce the difficulty of processing the transfer groove.

[0014] In some embodiments, the charging mold includes a receiving template and a docking template connected from top to bottom, and a plurality of receiving grooves docking with the drug guiding channel are arranged on the receiving template at intervals, the cross-sectional shape of the receiving grooves matches the drug guiding channel, and the inner diameter of the receiving grooves gradually decreases from one end close to the drug guiding channel to the end close to the docking template, and charging grooves connected to the receiving grooves are arranged on the docking template at intervals, and the charging grooves are connected to the receiving grooves to form a filling channel.

[0015] By adopting the above technical solution, the receiving groove which is larger at the top and smaller at the bottom can play a role of guiding flow, so that the gunpowder can be better transmitted.

[0016] In some embodiments, the medicine loading groove includes a transition section and a docking section, the transition section is connected to the receiving groove, the cross-sectional shape of the transition section matches the cross-sectional shape of the receiving groove, and the inner diameter of the transition section gradually decreases from one end close to the receiving groove to the end close to the docking section, the docking section is connected to the transition section, and the shape and inner diameter of the docking section correspond to the medicine loading cavity of the paper tube.

[0017] By adopting the above technical solution, the charging groove is set as a transition section and a docking section. The shape and the inner diameter of the upper end of the transition section match the receiving groove, which can better receive the gunpowder flowing from the receiving groove. The docking section corresponds to the charging cavity of the firework paper tube in shape and size, so the gunpowder can flow into the firework paper tube more smoothly.

[0018] In some embodiments, a plurality of nozzles are arranged at intervals at the bottom of the docking template, one end of each nozzle is connected to the docking template, and the other end extends toward the paper tube clamp, and the outer diameter of each nozzle gradually decreases from the end close to the docking template to the end close to the paper tube clamp, and the docking section is built into the nozzle.

[0019] By adopting the above technical solution, the inverted cone-shaped filling nozzle can be easily connected with the opening of the charging cavity of the firework paper tube during filling, thereby reducing the loss of gunpowder during filling.

[0020] In some embodiments, a plurality of partition bars are arranged at intervals at the bottom of the hopper, and the length extension direction of each partition bar is the same as the rotation direction of the feeding belt. Each partition bar divides the opening at the bottom of the hopper into a plurality of material dropping grooves corresponding to the material storage grooves, and the side of the partition bar away from the feeding belt is a conical surface.

[0021] By adopting the above technical solution, the partition bar divides the opening at the bottom of the hopper into a feeding trough corresponding to the storage trough, making the feeding more precise, and the top of the partition bar is set as a conical surface, which can reduce the gunpowder residue on the top of the partition bar and improve the utilization rate of the gunpowder.

[0022] In some embodiments, the charging mechanism further comprises a charging rack for supporting the charging mold and the paper tube fixture;

[0023] The charging rack includes a slide, a translational force member, a support column and a mold fixing seat. The translational force member drives the slide to reciprocate toward or away from the medicine guiding mold. The two ends of the support column are respectively connected to the slide and the mold fixing seat. The paper tube clamp is connected to the slide, and the charging mold is installed on the mold fixing seat.

[0024] By adopting the above technical solution, when the firework paper tube has multiple rows of powder charging cavities, the powder charging rack is set to a sliding form, which can facilitate switching of the filling powder charging cavity when filling gunpowder, so that the device can be applied to firework paper tubes with different numbers of powder charging cavities arranged, and has a wider application range.

[0025] In some embodiments, a conveying mechanism for conveying the paper tube clamp is further included, the conveying mechanism comprising a conveying member disposed on the top of the slide, and a blocking assembly installed on the conveying member for intercepting the paper tube clamp;

[0026] The conveying member includes a conveying frame, a roller and a conveying power member. The conveying frame is mounted on the top of the slide, the roller is rotatably arranged on the conveying frame, and the transmission power member is installed on the conveying frame to drive the roller to rotate;

[0027] The material blocking assembly includes a material blocking power piece and a material blocking arm. The material blocking power piece is installed on the conveying frame. The material blocking arm is connected to the output end of the material blocking power piece. The material blocking power piece drives the material blocking arm to intercept the paper tube clamp or release the interception of the paper tube clamp.

[0028] By adopting the above technical scheme, the transmission mechanism can realize automatic loading and unloading of the paper tube clamp, which is conducive to realizing fully automated production. The transmission power component drives the roller to rotate, thereby driving the paper tube clamp to slide on the roller; when loading gunpowder, the material blocking power component drives the material blocking arm to extend, thereby realizing the positioning of the paper tube clamp and improving the accuracy of gunpowder loading. After completing the gunpowder loading, the material blocking power component drives the material blocking arm to retract, so that the paper tube clamp can be transported away by the roller.

[0029] In some embodiments, the charging mechanism also includes a lifting assembly installed on the slide, the lifting assembly includes a lifting seat, a push rod and a lifting power part, the lifting seat is slidably connected to the slide, the push rod is installed on the lifting seat, and a positioning hole is provided at the bottom of the paper tube clamp to be inserted into the push rod. The lifting power part is installed on the slide and is used to drive the lifting seat to rise and fall relative to the slide, so that the paper tube clamp is lifted from the roller or falls on the roller.

[0030] By adopting the above technical solution, during filling, the lifting component lifts up the paper tube clamp, so that the firework paper tube is closer to the charging mold, improving the accuracy of gunpowder filling, and at the same time avoiding the influence of the roller on the positioning accuracy during filling; after the filling is completed, the lifting component lowers the paper tube clamp to the roller, so that the roller can transport the filled firework paper tube and paper tube clamp away.

[0031] The beneficial effects of the present invention are as follows: the precision fireworks automatic charging equipment of the present invention has a simple structure and is easy to use. It utilizes the cooperation of a feeding mechanism, a charging mechanism and a transmission mechanism to replace manual work to realize automatic and precise charging of fireworks gunpowder. Moreover, different fireworks paper tubes can be filled by simply replacing the corresponding gunpowder guide mold and charging mold. It has good versatility, reduces the labor intensity of workers, and also reduces the safety risks of fireworks production. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of a precise fireworks automatic charging device according to a preferred embodiment of the present invention;

[0033] Figure 2 for Figure 1 Another perspective structural diagram of the precision fireworks automatic charging equipment shown, wherein the protective plate and the dust cover are not shown;

[0034] Figure 3 for Figure 1 The structural diagram of the powder delivery mechanism in the precision fireworks automatic charging equipment shown;

[0035] Figure 4 for Figure 3 Another perspective structural diagram of the medicine delivery mechanism shown;

[0036] Figure 5 for Figure 4 The schematic cross-sectional structure diagram of the medicine delivery mechanism along line AA is shown;

[0037] Figure 6 for Figure 3 The schematic diagram of the structural decomposition of the medicine guiding mold in the medicine delivery mechanism shown;

[0038] Figure 7 for Figure 2 The structural diagram of the charging mechanism and the conveying mechanism in the precision fireworks automatic charging equipment shown;

[0039] Figure 8 for Figure 7 The structural schematic diagram of the charging mechanism in the precision fireworks automatic charging equipment shown;

[0040] Fig. 9 for Figure 8 A schematic diagram of the longitudinal cross-sectional structure of a charging mold in the charging mechanism shown;

[0041] Fig.10 for Figure 7 The schematic diagram of the structure of the conveying mechanism in the precision fireworks automatic charging equipment is shown.

[0042] In the figure: 100, precision fireworks automatic charging equipment; 10, machine; 20, drug delivery mechanism; 21, feeding platform; 22, connecting beam; 23, hopper; 231, partition bar; 232, drop chute; 24, feeding belt; 241, storage trough; 25, drug guide mold; 251, guide block; 252, first guide plate; 253, second guide plate; 254, guide trough; 255, adapter trough; 26, feeding power part; 27, feeding driving shaft; 28, feeding driven shaft; 30, charging mechanism; 31, charging rack; 311, slide; 31 2. Translational force member; 313. Support column; 314. Mould fixing seat; 32. Charge mould; 321. Receiver template; 322. Docking template; 323. Receiver slot; 324. Charge slot; 325. Filling nozzle; 33. Paper tube clamp; 331. Bottom plate; 332. Enclosure; 34. Lifting assembly; 341. Lifting seat; 342. Push rod; 343. Lifting power member; 40. Conveying mechanism; 41. Conveying frame; 42. Roller; 43. Conveying power member; 44. Material blocking assembly; 441. Material blocking power member; 442. Material blocking arm. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that when an element is referred to as being "fixed to" 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. When the number of an element is referred to as "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0046] See also Figures 1 to 10, which is a preferred embodiment of the present invention, is a precision fireworks automatic charging device 100, including a machine platform 10, and a feeding mechanism for conveying gunpowder, a charging mechanism 30 for filling gunpowder, and a conveying mechanism 40 for conveying firework paper tubes, which are respectively installed on the machine platform 10; the precision fireworks automatic charging device 100 of the present application can replace manual labor to realize automatic loading of fireworks gunpowder, and has the characteristics of high loading efficiency and high safety performance.

[0047] like Figure 1 and Figure 2 As shown, the feeding mechanism includes a feeding table 21, a hopper 23 installed on the feeding table 21, a plurality of feeding belts 24 arranged at the bottom of the hopper 23 and rotatably connected to the feeding table 21, and a drug guiding mold 25 arranged at one end of the feeding belt 24. The feeding table 21 is arranged above the machine 10, and the feeding table 21 is connected to the machine 10 through a connecting beam 22. The feeding belts 24 are arranged in parallel at the bottom of the hopper 23, and each feeding belt 24 is provided with a concave storage groove 241. The drug guiding mold 25 is provided with a plurality of drug guiding channels corresponding to each storage groove 241 at intervals.

[0048] Optionally, in the present embodiment, the cross-sectional shape of the material storage trough 241 is an inverted trapezoid. In other embodiments, the material storage trough 241 may also be configured to have other shapes as required.

[0049] like Figures 3 to 5 As shown, further, a plurality of partition bars 231 are arranged at intervals at the bottom of the hopper 23, and the length extension direction of each partition bar 231 is the same as the rotation direction of the feeding belt 24, and each partition bar 231 divides the opening at the bottom of the hopper 23 into a plurality of material dropping grooves 232 corresponding to the material storage grooves 241. The partition bars 231 divide the opening at the bottom of the hopper 23 into the material dropping grooves 232 corresponding to the material storage grooves 241, so that the material dropping is more accurate.

[0050] Preferably, the side of the partition bar 231 away from the feeding belt 24 is a conical surface. Setting the top of the partition bar 231 as a conical surface can reduce the gunpowder residue on the top of the partition bar 231 and improve the utilization rate of the gunpowder.

[0051] Preferably, in order to reduce the loss of gunpowder when transferring from the hopper 23 to the storage trough 241 on the feeding belt 24 , the feeding trough 232 should extend into the storage trough 241 .

[0052] Furthermore, the feeding mechanism includes a plurality of feeding power members 26, each of which drives a portion of the feeding belt 24 to rotate, so as to realize synchronous rotation or asynchronous rotation of each portion of the feeding belt 24. By providing a plurality of feeding power members 26 to drive the corresponding portion of the feeding belt 24, the corresponding number of feeding belts 24 can be selected to rotate during filling according to the number of charging cavities of the firework paper tube to be filled, so that the gunpowder filling of the device is flexible and adjustable, and has good versatility.

[0053] In the present embodiment, the firework paper tube to be filled is a regular hexagonal cube, and a plurality of rows of parallel-arranged charging cavities are provided inside the firework paper tube, and the number of charging cavities in two adjacent rows is not the same. When filling the firework paper tube in the present embodiment, a corresponding number of feeding belts 24 can be started according to the number of charging cavities in each row to be filled, so as to achieve accurate filling, and avoid that some charging cavities in the same row are not filled with gunpowder, or gunpowder is wasted because the number of rotating feeding belts is greater than the number of charging cavities actually filled.

[0054] It should be noted that the number of feeding power members 26 and the number of feeding belts 24 are determined by the charge chamber of the firework paper tube to be filled, and no specific number limitation is made here.

[0055] Furthermore, each feeding power member 26 corresponds to a feeding driving shaft 27, each feeding driving shaft 27 corresponds to one or more feeding belts 24, and in order to ensure that the feeding belts 24 unload at the same position, a feeding driven shaft 28 is provided at one end of the feeding table 21 close to the drug guiding mold 25, and each feeding belt 24 is wound around the same feeding driven shaft 28.

[0056] like Figure 6 As shown, the drug guiding mold 25 includes a guiding block 251, a first guide plate 252 and a second guide plate 253. The guiding block 251 is connected to the feeding belt 24. The side of the guiding block 251 close to the feeding belt 24 is provided with an arc surface that cooperates with the feeding belt 24, and the guiding block 251 is provided with a guiding groove 254 connected to the material storage groove 241. The first guide plate 252 and the second guide plate 253 are arranged opposite to each other, and grooves are provided on the opposite sides of the first guide plate 252 and the second guide plate 253. The first guide plate 252 and the second guide plate 253 are spliced ​​so that the grooves on both sides constitute a transfer groove 255 connected to the guiding groove 254, and the guiding groove 254 is connected to the transfer groove 255 to form a drug guiding channel. The arc surface on the side of the guide block 251 allows the guide block 251 to fit as closely as possible with the feed belt 24, thereby reducing the loss of gunpowder when it is transferred from the storage trough 241 to the guide trough 254; the transfer groove 255 formed by the first guide plate 252 and the second guide plate 253 can change the distance between two adjacent channels, so that the channel matches the filling channel on the subsequent charging mold 32. The transfer groove 255 is divided into two halves and respectively arranged on the first guide plate 252 and the second guide plate 253, which can reduce the difficulty of processing the transfer groove 255.

[0057] In this embodiment, since the interval between the charge cavities of the firework paper tubes in the same row is smaller than the interval between two adjacent feeding belts 24 , the interval between two adjacent transfer grooves 255 gradually decreases from one end close to the guide groove 254 to the end far away from the guide groove 254 .

[0058] like Figure 1 and Figure 2 As shown, the charging mechanism 30 includes a charging rack 31 connected to the machine 10, and a charging mold 32 and a paper tube clamp 33 respectively arranged on the charging rack 31, the charging mold 32 is arranged at the bottom of the drug guiding mold 25, and the paper tube clamp 33 is arranged directly below the charging mold 32, and a plurality of filling channels corresponding to each drug guiding channel are arranged on the charging mold 32 at intervals, and a receiving groove for receiving the paper tube is arranged on the paper tube clamp 33, and the receiving groove is located directly below the filling channel.

[0059] like Figure 7 and Figure 8 As shown, the charge rack 31 includes a slide 311, a translation force member 312, a support column 313 and a mold fixing seat 314. The translation force member 312 drives the slide 311 to reciprocate toward or away from the medicine guiding mold 25. The two ends of the support column 313 are respectively connected to the slide 311 and the mold fixing seat 314. The paper tube clamp 33 is connected to the slide 311, and the charge mold 32 is installed on the mold fixing seat 314. When the firework paper tube has multiple rows of charge cavities, the charge rack 31 is set to a sliding form, which can facilitate the switching of the charge cavities to be filled when filling gunpowder, so that the device can be applied to firework paper tubes with different numbers of charge cavities, and is more widely applicable.

[0060] In one embodiment, in order to prevent gunpowder from remaining on the charging mold 32, a vibrator (not shown) is provided on the mold fixing seat 314, and the gunpowder remaining on the charging mold 32 is shaken off into the firework paper tube by vibration.

[0061] like Fig. 9 As shown, the charge mold 32 includes a receiving template 321 and a docking template 322 connected from top to bottom, and the receiving template 321 is provided with a plurality of receiving grooves 323 docking with the drug-conducting channel at intervals, and the cross-sectional shape of the receiving grooves 323 matches the drug-conducting channel, and the inner diameter of the receiving grooves 323 gradually decreases from one end close to the drug-conducting channel to one end close to the docking template 322, and the docking template 322 is provided with charging grooves 324 connected with the receiving grooves 323 at intervals, and the charging grooves 324 are connected with the receiving grooves 323 to form a filling channel. The receiving grooves 323 with a large top and a small bottom can play a role in diversion, so that the gunpowder can be better transported.

[0062] Furthermore, the charge groove 324 includes a transition section and a docking section, the transition section is connected to the receiving groove 323, the cross-sectional shape of the transition section matches the cross-sectional shape of the receiving groove 323, and the inner diameter of the transition section gradually decreases from one end close to the receiving groove 323 to one end close to the docking section, the docking section is connected to the transition section, and the shape and inner diameter of the docking section correspond to the charge cavity of the paper tube. The charge groove 324 is set as a transition section and a docking section, the shape and the inner diameter of the upper end of the transition section match the receiving groove 323, and can better receive the gunpowder flowing from the receiving groove 323, and the shape and size of the docking section correspond to the charge cavity of the firework paper tube, so that the gunpowder can flow into the firework paper tube more smoothly.

[0063] Furthermore, a plurality of filling nozzles 325 are arranged at intervals at the bottom of the docking template 322, one end of each filling nozzle 325 is connected to the docking template 322, and the other end extends toward the paper tube fixture 33, and the outer diameter of each filling nozzle 325 gradually decreases from the end close to the docking template 322 to the end close to the paper tube fixture 33, and the docking section is built into the filling nozzle 325. The inverted cone-shaped filling nozzle 325 can be easily docked with the opening of the charge cavity of the firework paper tube during filling, reducing the loss of gunpowder during filling.

[0064] like Figure 8 As shown, the paper tube clamp 33 includes a bottom plate 331 and a surrounding plate 332. The surrounding plate 332 is connected to the top of the bottom plate 331. A plurality of surrounding plates 332 are hinged to each other to form a receiving cavity for receiving the firework paper tube. The shape and size of the receiving cavity are determined by the shape and size of the firework paper tube. The shape and size of the receiving cavity are not limited herein. Similarly, the number and shape of the surrounding plates 332 that form the receiving cavity can also be determined by the shape and size of the firework paper tube.

[0065] like Figure 7 and Fig.10As shown, the conveying mechanism 40 includes a conveying member arranged on the top of the slide 311, and a material blocking component 44 installed on the conveying member for intercepting the paper tube clamp 33; the conveying member includes a conveying frame 41, a roller 42 and a conveying power member 43, the conveying frame 41 is mounted on the top of the slide 311, the roller 42 is rotatably arranged on the conveying frame 41, and the transmission power member is installed on the conveying frame 41 for driving the roller 42 to rotate; the material blocking component 44 includes a material blocking power member 441 and a material blocking arm 442, the material blocking power member 441 is installed on the conveying frame 41, the material blocking arm 442 is connected to the output end of the material blocking power member 441, and the material blocking power member 441 drives the material blocking arm 442 to intercept the paper tube clamp 33 or release the interception of the paper tube clamp 33. The transmission mechanism can realize automatic loading and unloading of the paper tube clamp 33, which is conducive to fully automated production. The transmission power component drives the roller 42 to rotate, thereby driving the paper tube clamp 33 to slide on the roller 42; when loading gunpowder, the material blocking power component 441 drives the material blocking arm 442 to extend, so as to realize the positioning of the paper tube clamp 33 and improve the accuracy of gunpowder loading. After the gunpowder loading is completed, the material blocking power component 441 drives the material blocking arm 442 to be retracted, so that the paper tube clamp 33 can be transported away by the roller 42.

[0066] Furthermore, the transmission member also includes a transmission shaft, which is connected to the output end of the transmission power member 43, and the transmission shaft is driven to rotate by the transmission power member. The transmission shaft is connected to each roller 42 through a transmission belt, and each roller 42 corresponds to a transmission belt.

[0067] Correspondingly, the charging mechanism 30 also includes a lifting assembly 34 installed on the slide 311, the lifting assembly 34 includes a lifting seat 341, a push rod 342 and a lifting power member 343, the lifting seat 341 is slidably connected to the slide 311, the push rod 342 is installed on the lifting seat 341, the bottom of the bottom plate 331 of the paper tube clamp 33 is provided with a positioning hole that is inserted into the push rod 342, and the lifting power member 343 is installed on the slide 311, which is used to drive the lifting seat 341 to rise and fall relative to the slide 311, so that the paper tube clamp 33 is lifted from the roller 42 or falls on the roller 42. During filling, the lifting assembly 34 lifts up the paper tube clamp 33, so that the firework paper tube is closer to the charging mold 32, thereby improving the accuracy of gunpowder filling and avoiding the influence of the roller 42 on the positioning accuracy during filling. After the filling is completed, the lifting assembly 34 lowers the paper tube clamp 33 onto the roller 42, so that the roller 42 can transport the filled firework paper tube and the paper tube clamp 33 away.

[0068] Preferably, in order to facilitate adjustment of the distance between the medicine guiding mold 25 and the medicine charging mold 32, and to prevent the distance between the medicine guiding mold 25 and the medicine charging mold 32 from being too large and causing the gunpowder to spill, a lifting mechanism (not shown) is further provided on the machine 10, and the lifting mechanism is used to adjust the height of the feeding platform 21, and one end of the connecting beam 22 is fixedly connected to the feeding platform 21, and the other end is slidably connected to the machine 10. Optionally, the lifting mechanism can be a lead screw driven by a motor, or a lead screw driven by a hand wheel.

[0069] Optionally, the feeding power member 26 , the translation power member 312 , and the transmission power member 43 are servo motors, the lifting power member 343 is a telescopic cylinder, and the blocking power member 441 is a rotating cylinder.

[0070] Furthermore, the device is also provided with a controller (not shown), which is used to control the coordinated operation of various mechanisms.

[0071] In order to prevent the gunpowder from interfering with the operation of the movable mechanism, a dust cover or a dust baffle is provided on the surface of each power part.

[0072] The precision fireworks automatic charge loading device 100 of the present invention can replace manual automatic filling of fireworks gunpowder, and has the advantages of high filling efficiency and precision, and reduced safety hazards. The gunpowder of the fireworks is added into the hopper 23, and the feeding belt 24 circulates at the bottom of the hopper 23. The gunpowder in the hopper 23 falls into the storage tank 241 of the feeding belt 24 from the opening at the bottom of the hopper 23. When the feeding belt 24 rotates to the end, the gunpowder in the storage tank 241 will fall into the medicine guiding channel inside the medicine guiding mold 25 due to the effect of gravity, and then flow through the filling channel inside the charging mold 32. Finally, the gunpowder in each filling channel flows into the corresponding charging cavity of the fireworks paper tube set on the paper tube clamp 33, so as to realize automatic filling of gunpowder.

[0073] When the firework paper tube has multiple rows of powder-filling cavities, the powder-filling rack 31 is used to drive the paper tube clamp 33 to slide horizontally. During filling, the rows of powder-filling cavities can be switched, and the filling is flexible and variable.

[0074] In addition, the amount of gunpowder filled is flexibly adjustable. The filling amount of gunpowder can be adjusted by adjusting the rotation speed of the feeding belt 24 or the filling time of a single firework paper tube. Different firework paper tubes only need to replace the corresponding medicine guide mold 25 and the medicine charging mold 32 to achieve filling. It has good versatility. The entry and exit of the paper tube clamp 33 is transmitted by the transmission mechanism 40, which can realize automated production, reduce the labor intensity of workers, and also reduce the safety risks of fireworks production.

[0075] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precision fireworks automatic charging device (100), comprising a feeding mechanism for conveying gunpowder and a charging mechanism (30) for filling gunpowder, characterized in that: The feeding mechanism comprises a hopper (23), a plurality of feeding belts (24) arranged at the bottom of the hopper (23), and a medicine guiding mold (25) arranged at one end of the feeding belts (24), each of the feeding belts (24) being rotatably arranged in parallel at the bottom of the hopper (23), each of the feeding belts (24) being provided with an inwardly concave material storage groove (241), and the medicine guiding mold (25) being provided with a plurality of medicine guiding channels corresponding to each of the material storage grooves (241) at intervals; The medicine charging mechanism (30) comprises a medicine charging mold (32) arranged at the bottom of the medicine guiding mold (25), and a paper tube clamp (33) arranged at the bottom of the medicine charging mold (32); a plurality of filling channels corresponding to the medicine guiding channels are arranged at intervals on the medicine charging mold (32); and a receiving groove for receiving the paper tube is arranged on the paper tube clamp (33); the receiving groove is located directly below the filling channel; The feeding mechanism comprises a plurality of feeding power members (26), each of the feeding power members (26) correspondingly driving a portion of the feeding belt (24) to rotate, so as to achieve synchronous rotation or asynchronous rotation of each portion of the feeding belt (24); The drug guiding mold (25) comprises a guiding block (251), a first guide plate (252) and a second guide plate (253); the guiding block (251) is connected to the feeding belt (24); a side of the guiding block (251) close to the feeding belt (24) is provided with an arc surface matching the feeding belt (24); and a material guiding groove (254) communicating with the material storage groove (241) is provided on the guiding block (251); the first guide plate (252) and the second guide plate (253) are arranged opposite to each other; grooves are provided on opposite sides of the first guide plate (252) and the second guide plate (253); the first guide plate (252) and the second guide plate (253) are assembled so that the grooves on both sides form a transfer groove (255) communicating with the material guiding groove (254); the material guiding groove (254) and the transfer groove (255) are connected to form a drug guiding channel; The medicine charging mold (32) comprises a receiving template (321) and a docking template (322) connected from top to bottom, the receiving template (321) is provided with a plurality of receiving grooves (323) docking with the medicine guiding channel at intervals, the cross-sectional shape of the receiving grooves (323) matches the medicine guiding channel, and the inner diameter of the receiving grooves (323) gradually decreases from one end close to the medicine guiding channel to one end close to the docking template (322), and medicine charging grooves (324) connected with the receiving grooves (323) are provided on the docking template (322) at intervals, and the medicine charging grooves (324) are connected with the receiving grooves (323) to form a filling channel; The medicine charging groove (324) comprises a transition section and a docking section, the transition section is connected to the receiving groove (323), the cross-sectional shape of the transition section matches the cross-sectional shape of the receiving groove (323), and the inner diameter of the transition section gradually decreases from one end close to the receiving groove (323) to one end close to the docking section, the docking section is connected to the transition section, and the shape and inner diameter of the docking section correspond to the medicine charging cavity of the paper tube; A plurality of filling nozzles (325) are arranged at intervals at the bottom of the docking template (322), one end of each of the filling nozzles (325) is connected to the docking template (322), and the other end extends toward the paper tube clamp (33), and the outer diameter of each of the filling nozzles (325) gradually decreases from the end close to the docking template (322) to the end close to the paper tube clamp (33), and the docking section is built into the filling nozzle (325); The bottom of the hopper (23) is provided with a plurality of partition bars (231) at intervals, the length extension direction of each partition bar (231) being the same as the rotation direction of the feeding belt (24), each partition bar (231) divides the opening at the bottom of the hopper (23) into a plurality of material drop grooves (232) corresponding to the material storage grooves (241), and the side of the partition bar (231) away from the feeding belt (24) is a conical surface; The charge mechanism (30) further comprises a charge rack (31) for supporting a charge mold (32) and a paper tube clamp (33); The medicine charging rack (31) comprises a slide (311), a translation force member (312), a support column (313) and a mold fixing seat (314); the translation force member (312) drives the slide (311) to reciprocate in a direction close to or away from the medicine guiding mold (25); two ends of the support column (313) are respectively connected to the slide (311) and the mold fixing seat (314); the paper tube clamp (33) is connected to the slide (311); and the medicine charging mold (32) is mounted on the mold fixing seat (314).

2. The precision fireworks automatic charging device (100) according to claim 1, characterized in that: It also includes a conveying mechanism (40) for conveying the paper tube clamp (33), the conveying mechanism (40) comprising a conveying member arranged on the top of the slide (311), and a material blocking assembly (44) installed on the conveying member for intercepting the paper tube clamp (33); The conveying member comprises a conveying frame (41), a roller (42) and a conveying power member (43); the conveying frame (41) is mounted on the top of the slide (311); the roller (42) is rotatably arranged on the conveying frame (41); and the conveying power member (43) is installed on the conveying frame (41) and is used to drive the roller (42) to rotate; The material blocking assembly (44) comprises a material blocking power member (441) and a material blocking arm (442); the material blocking power member (441) is mounted on the conveying frame (41); the material blocking arm (442) is connected to the output end of the material blocking power member (441); the material blocking power member (441) drives the material blocking arm (442) to intercept the paper tube clamp (33) or release the interception of the paper tube clamp (33).

3. The precision fireworks automatic charging device (100) according to claim 2, characterized in that: The charging mechanism (30) further comprises a lifting assembly (34) mounted on the slide (311), the lifting assembly (34) comprising a lifting seat (341), a push rod (342) and a lifting power member (343), the lifting seat (341) being slidably connected to the slide (311), the push rod (342) being mounted on the lifting seat (341), a positioning hole for inserting into the push rod (342) being provided at the bottom of the paper tube clamp (33), and the lifting power member (343) being mounted on the slide (311) and used for driving the lifting seat (341) to rise and fall relative to the slide (311), so that the paper tube clamp (33) is lifted from the roller (42) or falls onto the roller (42).

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