Handheld multi-tube cold firework launching equipment and consumable thermal management method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-05
- Publication Date
- 2026-04-14
Smart Images
Figure CN121855339A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of cold fireworks equipment, specifically relating to a handheld multi-tube cold fireworks launching device and its consumable thermal management method. Background Technology
[0002] Cold fireworks launching equipment refers to electronic devices that use new metal powder consumables without traditional gunpowder. The consumables are heated to above their ignition point by electric heating, and then the ignited consumables are launched using wind power to create the effect of traditional fireworks. It has the characteristics of being pollution-free, safe and controllable, and is a good alternative to traditional fireworks.
[0003] Cold pyrotechnic launching devices typically use a screw mechanism to push the consumable material inside the heating tube into a hollow tube, where a fan then blows the consumable material out. However, in existing cold pyrotechnic launching devices, the consumable material inside the heating tube is prone to blockage after standby or shutdown, affecting the operation of the device. Summary of the Invention
[0004] The technical problem to be solved by this application is that the consumables in the heating tube of the existing cold flame launching equipment are prone to blockage after standby or shutdown. In order to solve this technical problem, a handheld multi-tube cold flame launching equipment and its consumable thermal management method are provided to avoid blockage of the heating tube.
[0005] The technical solution proposed in this application is as follows: A handheld multi-tube cold flare launching device includes: Heating components; A feeding assembly, connected to the heating assembly, is capable of feeding consumables into the heating assembly; The assembly includes a feeding component and a blower assembly. The feeding component extends into the heating component, and the heating component is connected to the blower assembly. The feeding component can push consumables inside the heating component to the blower assembly, and the blower assembly can blow out the consumables. The handheld multi-tube cold flame launcher also includes an intermediate state during the process of switching from the operating state to the standby state. When the handheld multi-tube cold flame launching device is in the intermediate state, the feeding component and the blowing component are turned off, while the conveying component remains operational.
[0006] When using the aforementioned handheld multi-tube cold pyrotechnic launcher, during the transition from the operating state to the standby state, the handheld multi-tube cold pyrotechnic launcher will experience an intermediate state. In this state, the feeding component and the blowing component are turned off, while the conveying component remains running. This pushes the consumables remaining in the heating component into the blowing component, preventing the consumables from sintering in the heating component and causing blockage.
[0007] Furthermore, it also includes a rotating component rotatably connected to the blower assembly, the blower assembly being able to blow consumables into the rotating component and eject consumables from the rotating component.
[0008] Furthermore, the feeding assembly includes a feeding motor and a feeding screw. The feeding motor is connected to the feeding screw, and the feeding screw extends into the heating assembly to push the consumables in the heating assembly to the blower assembly during rotation.
[0009] Furthermore, the material conveying assembly also includes a flexible connector, one end of which is connected to the output end of the material conveying motor, and the other end of which is connected to the material conveying screw.
[0010] Furthermore, the heating assembly includes a heating tube, a heating wire, and an insulation layer. The feeding assembly is connected to the heating tube, the conveying assembly extends partially into the heating tube, and the end of the heating tube away from the conveying assembly extends into the blower assembly. The heating wire is disposed on the heating tube, and the insulation layer is disposed on the outside of the heating tube.
[0011] Furthermore, the feeding assembly includes a hopper, a feeding pipe, and a feeding module. The hopper is used to store consumables. One end of the feeding pipe is connected to the bottom of the hopper, and the other end is connected to the heating assembly. The feeding module is located in the hopper and is used to guide the consumables in the hopper into the feeding pipe.
[0012] Furthermore, the blower assembly includes a blower and a feeding pipe. The blower is connected to one end of the feeding pipe, the heating assembly is connected to the side wall of the feeding pipe, and the conveying assembly can push the consumables in the heating assembly into the feeding pipe.
[0013] A method for thermal management of consumables in a handheld multi-tube cold flame launcher includes the following steps: S110, shut down the blower assembly and the feeding assembly; S120, the material conveying assembly continues to operate; The feeding component can input consumables into the heating component, the heating component can heat the consumables, and the conveying component can push the consumables in the heating component to the blower component. In S120, a first running time and a second running time are calculated, and the first running time and the second running time are compared with a preset running time to determine one of the first running time, the second running time and the preset running time as the running time of the material conveying component.
[0014] Furthermore, if the deviations of the first running time, the second running time, and the preset running time are all greater than the preset deviation, the running time of the material conveying component is set to the preset running time. If the deviation between the first running time and the second running time and the preset running time does not exceed the preset deviation, the running time of the material conveying component is set to the one whose deviation from the preset running time does not exceed the preset deviation. If the deviations of the first running time, the second running time, and the preset running time do not exceed the preset deviation, and the deviation between the first running time and the second running time exceeds the preset deviation, the running time of the material conveying component is set as the second running time. If the deviations of the first running time, the second running time, and the preset running time do not exceed the preset deviation, and the deviation between the first running time and the second running time does not exceed the preset deviation, then the running time of the material conveying component is set as the first running time.
[0015] Furthermore, the first running time is calculated according to Formula 1: Formula 1 in, For the first running time, Within the set search time window, The search time window is used to find the point in time when the value reaches its positive maximum. The second derivative of the consumable temperature. The heating temperature set for the heating component. The initial temperature of the heating component is input into the consumable. For thermal energy feedback correction factor, The point in time when the heating component is input for consumables; Calculate the second running time according to Formula 2: Formula 2 in, For the second running time, This refers to the path length of the consumable within the heating assembly. Here, P is the temperature difference correction factor, and P is the lead of the feed screw. Let be the power output function of the conveying motor, and U be the voltage of the conveying motor. This is the current of the material conveying motor. Attached Figure Description
[0016] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.
[0017] Figure 1 A schematic diagram of the structure of a handheld multi-tube cold flame launching device provided in an embodiment of this application; Figure 2 for Figure 1 The diagram shows the internal structure of the casing of a handheld multi-tube cold flare launcher. Figure 3 for Figure 2 The diagram shows the structure of some components inside the casing; Figure 4 for Figure 3 A cross-sectional view of some of the components shown; Figure 5 This is a partial control flow diagram of the consumable thermal management method for a handheld multi-tube cold flame launching device provided in an embodiment of this application.
[0018] Label Explanation: 110. Feeding assembly; 111. Hopper; 112. Feeding pipe; 113. Feeding module; 120. Heating assembly; 121. Heating tube; 122. Insulation layer; 123. Air inlet; 130. Conveying assembly; 131. Conveying motor; 132. Conveying screw; 133. Flexible connector; 140. Blower assembly; 141. Blower; 142. Feeding pipe; 143. Arc-shaped pipe; 150. Housing; 151. Handle; 152. Grip part; 153. Power supply; 160. Rotating assembly; 161. Connecting seat; 162. Spray pipe; 163. Mounting plate; 164. Decorative tube; 170. Rotating drive component. Detailed Implementation
[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0025] To facilitate understanding of the technical solution of this application, the reason why existing heating tubes are prone to clogging is explained here: the consumables are heated to the ignition point inside the heating tube. After the machine is stopped, the consumables heated to the ignition point continue to sinter inside the heating tube, which leads to clogging inside the heating tube.
[0026] On the one hand, such as Figures 1 to 3 As shown, this application provides a handheld multi-tube cold flame launching device, including a feeding assembly 110, a heating assembly 120, a conveying assembly 130, and a blowing assembly 140. The feeding assembly 110 is connected to the heating assembly 120 and can feed consumables into the heating assembly 120. The heating assembly 120 can heat the consumables, raising their temperature to their ignition point. The conveying assembly 130 extends partially into the heating assembly 120, and the heating assembly 120 is connected to the blowing assembly 140. The conveying assembly 130 can push the consumables within the heating assembly 120 to the blowing assembly 140, whereby the blowing assembly 140 blows the consumables out. Thus, as the feeding assembly feeds the consumables into the heating assembly 120, and the conveying assembly 130 pushes the consumables within the heating assembly 120, the heating assembly 120 heats the consumables to their ignition point. The consumables then enter the blower assembly 140, which blows out the consumables when they reach their ignition point. The consumables come into contact with the oxygen in the outside world and burn, thus forming a cold flame.
[0027] Furthermore, during the transition from the operating state to the standby state, the handheld multi-tube cold pyrotechnic launcher also includes an intermediate state. That is, the handheld multi-tube cold pyrotechnic launcher will first go through an intermediate state before switching to the standby state. When the handheld multi-tube cold pyrotechnic launcher is in the intermediate state, the feeding component 110 and the blowing component 140 are turned off, while the conveying component 130 remains operational. That is, the feeding component 110 stops feeding consumables to the heating component 120, the blowing component 140 stops blowing air, and the conveying component 130 continues to push the consumables in the heating component 120 to the blowing component 140.
[0028] When using the above-mentioned handheld multi-tube cold pyrotechnic launcher, the cold pyrotechnic launcher will go through an intermediate state during the process of switching from the running state to the standby state. In this state, the feeding component 110 and the blowing component 140 are turned off, while the conveying component 130 remains running, thereby pushing the consumables remaining in the heating component 120 into the blowing component 140, so as to avoid the consumables from sintering in the heating component 120 and causing the heating component 120 to become blocked.
[0029] It should be noted that when the power supply is sufficient, after the cold fireworks launcher switches from operating mode to standby mode, the heating element 120 inside the launcher will remain running to maintain its temperature, eliminating the need for preheating when restarting. If the power supply is insufficient to maintain the operation of the heating element 120, or if the launcher enters a shutdown state, the temperature inside the heating element 120 will drop to ambient temperature, requiring preheating before restarting.
[0030] Additionally, it is understandable that in the heating assembly 120, consumables are conveyed through the conveying assembly 130, while in the blowing assembly 140, consumables are driven by airflow. In order to achieve smooth consumable conveying, the conveying space of consumables in the heating assembly 120 is smaller than that in the blowing assembly 140. Furthermore, the inner wall of the space for consumable conveying in the blowing assembly 140 is relatively smooth, so consumables are prone to blockage in the heating assembly 120.
[0031] In one embodiment, the cold fireworks launching device further includes a housing 150, in which the aforementioned feeding assembly 110, heating assembly 120, conveying assembly 130, and blowing assembly 140 are all disposed. Further, the cold fireworks launching device also includes a handle 151, which is disposed on the outside of the housing 150, allowing the cold fireworks launching device to be used by hand. Meanwhile, operation keys such as triggers for controlling the start and stop of the cold fireworks launching device are disposed in the housing 150, for example... Figure 1 In the device, a grip 152 is formed at the end of the outer casing 150 furthest from the cold firework output end. The operator can hold the cold firework launcher by using the grip 152 and the handle 151. A trigger is located on the grip 152. When the operator presses the trigger, the cold firework launcher starts and sprays cold firework. When the trigger is released, the cold firework launcher stops spraying cold firework and first enters an intermediate state, then a standby state. It is certain that since the cold firework launcher is handheld, it also includes a power supply 153, which can be a battery, to power the various components within the cold firework launcher.
[0032] In one embodiment, the cold pyrotechnic launching device further includes a rotating assembly 160. The rotating assembly 160 is rotatably connected to a blower assembly 140, which blows consumables into and out of the rotating assembly 160. Further, the rotating assembly 160 is rotatably connected to a housing 150, meaning the rotating assembly 160 is rotatably connected to the blower assembly 140 via the housing 150. In practical applications, the rotating assembly 160 includes a connecting base 161, a spray pipe 162, multiple mounting plates 163, and multiple decorative tubes 164. The connecting base 161 is rotatably connected to the housing 150, and the spray pipe 162 is connected to the connecting base 161, with one end passing through the connecting base 161 and communicating with the blower assembly 140, so that the blower assembly 140 blows consumables into the spray pipe 162 and out of the other end of the spray pipe 162. Multiple decorative tubes 164 are arranged at intervals around the spray tube 162, and the multiple decorative tubes 164 are fixed relative to the spray tube 162 by mounting plates 163. Multiple mounting plates 163 are arranged at intervals along the axial direction of the spray tube 162.
[0033] In a preferred embodiment, the cold flare launching device further includes a vibration damping pad. The vibration damping pad is disposed between the rotating component 160 and the housing 150, specifically between the connecting seat 161 and the housing 150, to reduce the generation of vibration during the rotation of the rotating component 160, and also to reduce the mutual transmission of vibration between the two, preventing components from loosening due to vibration, and improving the reliability of the device operation.
[0034] In one embodiment, the cold flare launching device further includes a rotary drive 170, which is disposed within the housing 150 and connected to the rotary assembly 160 to drive the rotary assembly 160 to rotate. In practical applications, the rotary drive 170 is a motor, and the rotary drive 170 is connected to the connecting seat 161 via a gear structure.
[0035] Please also refer to Figure 4 In one embodiment, the feeding assembly 110 includes a hopper 111, a feeding pipe 112, and a feeding module 113. The hopper 111 is used to store consumables. One end of the feeding pipe 112 is connected to the bottom of the hopper 111, and the other end is connected to the heating assembly 120. The feeding module 113 is disposed in the hopper 111 and is used to guide the consumables in the hopper 111 into the feeding pipe 112, thereby inputting them into the heating assembly 120 through the feeding pipe 112. It can be understood that closing the feeding assembly 110 means that the feeding module 113 stops operating, thereby stopping the input of consumables into the heating assembly 120.
[0036] Furthermore, the feeding module 113 includes a feeding motor, a stirring rod, a feeding block, and a spring. The feeding motor is located in the hopper 111 and connected to the stirring rod. The feeding block is movably connected to the stirring rod along its length, and the stirring rod can drive the feeding block to rotate. The spring is located between the hopper 111 and the feeding block, so that the feeding block presses against the opening at the bottom of the hopper 111, ensuring that the consumables in the hopper 111 are guided into the opening when the feeding block rotates, and then into the feeding pipe 112. When the feeding pipe 112 stops rotating, the consumables in the hopper 111 will not continue to be fed into the connecting pipe. In practical applications, the bottom surface of the feeding block is provided with blind holes and multiple arc-shaped guide grooves. The blind holes correspond to the openings at the bottom of the hopper 111. Multiple arc-shaped guide grooves are arranged at intervals along the circumference of the blind holes. One end of each arc-shaped guide groove is connected to the blind hole, and the other end passes through the edge of the bottom surface of the feeding block, so that the consumables are guided to be transported to the blind holes and openings along the arc-shaped guide grooves during rotation.
[0037] In one embodiment, the heating assembly 120 includes a heating tube 121, a heating wire, and an insulation layer 122. A feeding assembly 110 is connected to the heating tube 121, and a conveying assembly 130 partially extends into the heating tube 121. One end of the heating tube 121, away from the conveying assembly 130, extends into the blower assembly 140, allowing the conveying assembly 130 to push consumables from the heating tube 121 into the blower assembly 140. The heating wire is disposed on the heating tube 121 to heat the consumables within it. The insulation layer 122 is disposed on the outside of the heating tube 121 to insulate it from heat and also to prevent the temperature of the heating tube 121 from affecting the operation of other components.
[0038] In one embodiment, an air inlet 123 is provided on the side wall of the heating tube 121 near the blower assembly 140. Outside air can enter the heating tube 121 through the air inlet 123, thereby causing the consumable heated to the ignition point to start igniting. After entering the blower assembly 140, it is blown out by the blower assembly 140. During this process, the consumable will continue to burn and eventually form a cold flame when it is sprayed out.
[0039] In one embodiment, the feeding assembly 130 includes a feeding motor 131 and a feeding screw 132. The feeding motor 131 is disposed in the housing 150 and is connected to the feeding screw 132. The feeding screw 132 extends into the heating assembly 120, specifically from the end of the heating tube 121 away from the blower assembly 140. The feeding motor 131 drives the feeding screw 132 to rotate, and during the rotation of the feeding screw 132, it can push the consumables in the heating tube 121 to the blower assembly 140.
[0040] Furthermore, the feeding assembly 130 also includes a flexible connector 133. One end of the flexible connector 133 is connected to the output end of the feeding motor 131, and the other end is connected to the feeding screw 132, so as to transmit power through the flexible connector 133. In this way, the radial force on the screw can be prevented from being transmitted to the feeding motor 131, avoiding jamming during the feeding process. At the same time, the flexible connector 133 can also reduce the heat transferred to the feeding motor 131, improving the reliability of operation. Specifically, the flexible connector 133 can be a sleeve, with a clearance fit between the output end of the feeding motor 131 and the feeding screw 132 and the sleeve, thereby achieving a certain degree of flexibility during transmission.
[0041] In one embodiment, the blower assembly 140 includes a blower 141 and a feed pipe 142. The blower 141 is connected to one end of the feed pipe 142, and the aforementioned spray pipe 162 is connected to the end of the feed pipe 142 away from the blower 141. The heating assembly 120 is connected to the side wall of the feed pipe 142, and the conveying assembly 130 can push the consumables in the heating assembly 120 into the feed pipe 142. Subsequently, the blower 141 blows the consumables in the feed pipe 142 into the spray pipe 162. In practical applications, the blower assembly 140 also includes an arc-shaped pipe 143, one end of which is connected to the blower 141, and the other end is connected to the feed pipe 142.
[0042] In one embodiment, the cold pyrotechnic launching device further includes a controller connected to the aforementioned feeding assembly 110, conveying assembly 130, heating assembly 120, and blowing assembly 140. The aforementioned trigger is also connected to the controller, thereby enabling control of the cold pyrotechnic launching device's operation via the trigger. It is also understood that the controller can control the cold pyrotechnic launching device to switch between operating, intermediate, and standby states in sequence.
[0043] Furthermore, the cold pyrotechnic launching device also includes a first temperature detector and a second temperature detector. The first temperature detector is located in the hopper 111 and is used to detect the temperature of the consumables inside the hopper 111; the second temperature detector is located in the heating tube 121 and is used to detect the temperature of the consumables inside the heating tube 121. The controller is connected to the first temperature detector and the second temperature detector to control the duration of the intermediate state of the cold pyrotechnic launching device after acquiring data from the first temperature detector and the second temperature detector.
[0044] It should be noted that the temperature of the consumables in the hopper 111 is affected by the ambient temperature, which can be used as a substitute. Therefore, the first temperature detector can also be set inside the outer casing 150 to detect the ambient temperature inside the outer casing 150. The temperature of the consumables inside the heating tube 121 will gradually increase, and it usually increases gradually from the inlet end to the outlet end inside the heating tube 121. Therefore, multiple second temperature detectors can be set as needed to detect the temperature changes of the consumables inside the heating tube 121.
[0045] Furthermore, the cold flame launching device can also be equipped with a third temperature detector. This third temperature detector is located in the blower assembly 140, specifically in the feed pipe 142, and is used to detect the temperature of the consumables entering the feed pipe 142. It should be noted that the consumables in the heating tube 121 are limited by oxygen content, resulting in incomplete combustion. However, after entering the feed pipe 142, which is larger than the heating tube 121, the oxygen content increases, leading to more complete combustion. Therefore, the third temperature detector typically detects a higher temperature for the consumables.
[0046] On the other hand, based on the aforementioned cold pyrotechnic launching device, this application also provides a method for thermal management of consumables for the cold pyrotechnic launching device, including the steps of: S110, shutting down the blower assembly 140 and the feeding assembly 110; S120, allowing the conveying assembly 130 to continue operating. The connection relationships and functions of the feeding assembly 110, heating assembly 120, conveying assembly 130, and blower assembly 140 are as described above and will not be repeated here. Furthermore, it is understood that in S110, the operator presses the trigger while the cold pyrotechnic launching device is running, which shuts down the blower assembly 140 and the feeding assembly 110.
[0047] In S120, a first running time and a second running time are calculated, and the first running time and the second running time are compared with a preset running time to determine one of the first running time, the second running time and the preset running time as the running time of the material conveying component 130.
[0048] It should be explained that in the consumable thermal management method, both control and calculation are implemented through a controller. Furthermore, the data required for calculation can also be obtained by the controller through other components using conventional methods, which will not be elaborated upon here. Additionally, the aforementioned preset running time is a fixed preset time; specific data can be set according to experimental or equipment parameters, which will not be elaborated upon here.
[0049] Please see Figure 5 Specifically, regarding the comparison between the first running time T1, the second running time T2, and the preset running time T3: If the deviations of the first running time, the second running time, and the preset running time are all greater than the preset deviation, the controller sets the duration of the intermediate state to the preset running time, that is, sets the running time of the material conveying component 130 to the preset running time; if the deviation of either the first running time or the second running time from the preset running time does not exceed the preset deviation, the controller sets the duration of the intermediate state to the one whose deviation from the preset running time does not exceed the preset deviation; if the deviations of both the first running time and the second running time from the preset running time do not exceed the preset deviation, but the deviation between the first running time and the second running time exceeds the preset deviation, the controller sets the duration of the intermediate state to the second running time; if the deviations of both the first running time and the second running time from the preset running time do not exceed the preset deviation, and the deviation between the first running time and the second running time does not exceed the preset deviation, the controller sets the duration of the intermediate state to the first running time. Specifically... Figure 5 In the illustrated embodiment, the preset deviation is 20%. It should be noted that the preset deviation can be set according to actual needs and equipment parameters, which will not be elaborated here.
[0050] In one embodiment, the first running time and the second running time are calculated using Formula 1 and Formula 2, respectively.
[0051] Formula 1 in, For the first running time, Within the set search time window, The search time window is used to find the point in time when the value reaches its positive maximum. This provides positive feedback of transient thermal energy at the temperature of consumables. The heating temperature set for heating component 120 Input the initial temperature of the heating element 120 for the consumables. For thermal energy feedback correction factor, The time point when inputting heating component 120 for consumables.
[0052] Formula 2 in, For the second running time, The path length of the consumable within the heating assembly 120. P is the temperature difference correction factor, and P is the lead of the feed screw 132. Let U be the power output function of the conveying motor 131, where U is the voltage of the conveying motor 131. This is the current of the material conveying motor 131.
[0053] It needs to be explained that in Formula 1, the temperature rise of the consumable within the heating tube 121 is typically linear or nearly linear, meaning a sudden increase will not occur. However, after the consumable is delivered to the end of the heating tube 121 near the feed tube 142 or enters the feed tube 142, the consumable will begin to burn, causing a rapid temperature rise. Formula 1 allows for... The search queries for the time points within the corresponding time window when the consumable temperature rises sharply, typically selecting the time point where the sharp temperature rise first occurs. Background drift is eliminated to ensure accurate acquisition of the combustion time point. For Since the heating temperature set in heating tube 121 differs from the initial temperature, the heat absorption rate of the consumables after entering heating tube 121 varies. This function can automatically adjust the sampling sensitivity to ensure accurate acquisition of the combustion time point. After acquiring the combustion time point, since the consumables are at the end of heating tube 121 or even have entered the feed tube 142 during combustion, the approximate residence time of the consumables in heating tube 121 can be obtained by subtracting the time when the consumables entered heating tube 121 from the combustion time point.
[0054] In Formula 2, the consumable is conveyed by the feeding screw 132. The lead of the feeding screw 132 (i.e., the distance the consumable is conveyed within the heating tube 121 during one revolution of the feeding screw 132) and the path length of the consumable within the heating tube 121 are known. Temperature difference correction coefficient. The system can adjust the temperature in real time based on the temperature difference between the initial temperature of the consumable and the heating temperature set by the heating element 121. For example, a large temperature difference indicates a low initial temperature of the consumable, and the lower the temperature, the greater the conveying resistance. In this case, it is necessary to appropriately extend the duration of the intermediate state. Simultaneously, the actual power output of the conveying motor 131 also affects the conveying of the consumable. Therefore, in formula 2, by setting... The second running time is adjusted in real time.
[0055] To facilitate understanding of the working process of the cold fireworks launching device provided in this application, the working process of the cold fireworks launching device in the above embodiments is described below: Initially, the cold flame launching device is in standby mode (heating tube 121 is preheated or in a heat preservation state). The operator presses the trigger, and the feeding module 113 guides the consumables from the hopper 111 into the connecting pipe, which then falls into the heating tube 121 below. The feeding motor 131 drives the feeding screw 132 to rotate via the flexible connector 133. During rotation, the feeding screw 132 pushes the consumables towards the feeding pipe 142. As the consumables move within the heating tube 121, they gradually heat up until they reach above their ignition point. The consumables begin to burn at the end of the heating tube 121 or after entering the feeding pipe 142. The blower 141 blows air into the feeding pipe 142 to propel the burning consumables into the spray pipe 162, where they are then ejected to form a cold flame. During the process of the consumables being ejected to form the cold flame, the rotary drive 170 drives the rotary assembly 160 to maintain rotation.
[0056] When standby is required, the operator releases the trigger, the feeding module 113 and the blower 141 stop running, while the conveying motor 131 continues to run for a duration determined by the controller to ensure that any remaining consumables in the heating tube 121 are pushed into the feeding tube 142. The cold flame launching device then enters standby mode again, meaning the conveying motor 131 stops running while the heating component 120 continues to run.
[0057] It should be noted that since the size of the feeding tube 142 is larger than that of the heating tube 121, the consumables pushed into the feeding tube 142 are less likely to clog the feeding tube 142. Moreover, after the consumables are pushed into the feeding tube 142, the consumables in the feeding tube 142 can be discharged along the spray tube 162 by placing the discharge end of the spray tube 162 downward.
[0058] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A handheld multi-tube cold flame launching device, characterized in that, include: Heating components; A feeding assembly, connected to the heating assembly, is capable of feeding consumables into the heating assembly; The assembly includes a feeding component and a blower assembly. The feeding component extends into the heating component, and the heating component is connected to the blower assembly. The feeding component can push consumables inside the heating component to the blower assembly, and the blower assembly can blow out the consumables. The handheld multi-tube cold flame launcher also includes an intermediate state during the process of switching from the operating state to the standby state. When the handheld multi-tube cold flame launching device is in the intermediate state, the feeding component and the blowing component are turned off, while the conveying component remains operational.
2. The handheld multi-tube cold flame launching device according to claim 1, characterized in that, It also includes a rotating component rotatably connected to the blower assembly, the blower assembly being able to blow consumables into the rotating component and eject consumables from the rotating component.
3. The handheld multi-tube cold flame launching device according to claim 1, characterized in that, The feeding assembly includes a feeding motor and a feeding screw. The feeding motor is connected to the feeding screw, and the feeding screw extends into the heating assembly to push the consumables in the heating assembly to the blower assembly during rotation.
4. The handheld multi-tube cold flame launching device according to claim 3, characterized in that, The material conveying assembly also includes a flexible connector, one end of which is connected to the output end of the material conveying motor, and the other end of which is connected to the material conveying screw.
5. The handheld multi-tube cold flame launching device according to claim 1, characterized in that, The heating assembly includes a heating tube, a heating wire, and an insulation layer. The feeding assembly is connected to the heating tube. The conveying assembly extends partially into the heating tube. The end of the heating tube away from the conveying assembly extends into the blower assembly. The heating wire is disposed on the heating tube, and the insulation layer is disposed on the outside of the heating tube.
6. The handheld multi-tube cold flame launching device according to claim 1, characterized in that, The feeding assembly includes a hopper, a feeding pipe, and a feeding module. The hopper is used to store consumables. One end of the feeding pipe is connected to the bottom of the hopper, and the other end is connected to the heating assembly. The feeding module is located in the hopper and is used to guide the consumables in the hopper into the feeding pipe.
7. The handheld multi-tube cold flame launching device according to claim 1, characterized in that, The blower assembly includes a blower and a feeding pipe. The blower is connected to one end of the feeding pipe, the heating assembly is connected to the side wall of the feeding pipe, and the conveying assembly can push the consumables in the heating assembly into the feeding pipe.
8. A method for thermal management of consumables in a handheld multi-tube cold flame launcher, characterized in that, Including the following steps: S110, shut down the blower assembly and the feeding assembly; S120, the material conveying assembly continues to operate; The feeding component can input consumables into the heating component, the heating component can heat the consumables, and the conveying component can push the consumables in the heating component to the blower component. In S120, a first running time and a second running time are calculated, and the first running time and the second running time are compared with a preset running time to determine one of the first running time, the second running time and the preset running time as the running time of the material conveying component.
9. The consumable thermal management method for the handheld multi-tube cold flame launching device according to claim 8, characterized in that, If the deviations of the first running time, the second running time, and the preset running time are all greater than the preset deviation, the running time of the material conveying component is set to the preset running time. If the deviation between the first running time and the second running time and the preset running time does not exceed the preset deviation, the running time of the material conveying component is set to the one whose deviation from the preset running time does not exceed the preset deviation. If the deviations of the first running time, the second running time, and the preset running time do not exceed the preset deviation, and the deviation between the first running time and the second running time exceeds the preset deviation, the running time of the material conveying component is set as the second running time. If the deviations of the first running time, the second running time, and the preset running time do not exceed the preset deviation, and the deviation between the first running time and the second running time does not exceed the preset deviation, then the running time of the material conveying component is set as the first running time.
10. The consumable thermal management method for the handheld multi-tube cold flame launching device according to claim 8, characterized in that, The first running time is calculated according to Formula 1: Official 1 in, For the first running time, Within the set search time window, The search time window is used to find the point in time when the value reaches its positive maximum. The second derivative of the consumable temperature. The heating temperature set for the heating component, The initial temperature of the heating component is input into the consumable. For thermal energy feedback correction factor, The point in time when the heating component is input for consumables; Calculate the second running time according to Formula 2: Official 2 in, For the second running time, This refers to the path length of the consumable within the heating assembly. Here, P is the temperature difference correction factor, and P is the lead of the feed screw. Let be the power output function of the conveying motor, and U be the voltage of the conveying motor. This is the current of the material conveying motor.