Method for spirally printing firework base

Abstract

The invention relates to the technical field of fireworks, in particular to a method for spirally printing a firework base, and the method is applied to 3D printing equipment and comprises the following steps that A, the base is formed, and the base is provided with at least one cylinder position; b, printing and forming an annular structure in the cylinder position; c, the step B is repeatedly executed for multiple times, each annular structure is located over the previous annular structure, and the tail end of each annular structure is the head end of the previous annular structure; a plurality of annular structures are sequentially stacked to form the firework cylinder. By means of the 3D printing mode, the effect of spirally printing the firework cylinder is achieved through cooperation of all modules of the 3D printing equipment, and the cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of fireworks, and in particular to a method for spirally printing a fireworks base. Background Art

[0002] At present, the base of fireworks is usually made of corrugated paper. In order to ensure the strength of the firework base, multiple layers of glue are usually applied to the corrugated paper, or even cement is attached. However, this method results in a very high content of the firework base, and it is usually difficult to recycle and reuse it after one use, resulting in waste. Summary of the invention

[0003] In view of the problems of the prior art, the present invention provides a method for spirally printing a firework base, which achieves the effect of efficiently manufacturing a recyclable firework base by printing firework tubes one by one.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides a method for spirally printing a firework base, which is applied to a 3D printing device and comprises the following steps:

[0006] A. A molded base, wherein the base has at least one barrel position;

[0007] B. Printing a ring structure in the barrel;

[0008] C. Repeat step B several times, each time the ring structure is located directly above the previous ring structure, and the end of each ring structure is the beginning of the previous ring structure; a firework tube is formed by stacking multiple ring structures in sequence.

[0009] Furthermore, in step A, there are multiple barrel positions, and adjacent barrel positions are arranged at intervals.

[0010] Furthermore, it also includes:

[0011] D. Keep the print head in the printing state or switch it to the closed state, and control the print head to move from the current barrel position to the next barrel position, and perform steps B and C at the next barrel position;

[0012] E. Repeat step D until all tube positions are printed with firework tubes.

[0013] Furthermore, in step C, whenever the formation of a ring-shaped structure is completed, the base is controlled to descend relative to the print head, and the descending height is the height of a ring-shaped structure;

[0014] In step D, when the print head moves from the current barrel position to the next barrel position, the base is controlled to rise so that the height between the base and the print head returns to the initial state.

[0015] Furthermore, step A specifically includes:

[0016] A1. Print and form one barrel;

[0017] A2. A partition is formed on one side of the barrel, and the thickness of the partition is greater than the thickness of the barrel;

[0018] A3. Repeat steps A1 and A2 until all tubes are formed;

[0019] A4. Print the reinforcement ribs on the outermost tube.

[0020] Wherein, each cylinder position is respectively connected to at least two partitions, and each partition is connected to at least two cylinder positions.

[0021] Furthermore, the bottom of the cylinder is provided with at least two through holes;

[0022] Before step A1, the method further includes: providing a continuous strip structure, wherein the strip structure is used to be recognized by a 3D printing device to form a base;

[0023] After step C, the strip structure is separated from the base.

[0024] Furthermore, in step D, the print head is switched to a closed state, specifically including:

[0025] D1. Sense whether the current number of printing of the annular structure is the last time for the cylinder, if so, execute step D2, otherwise continue to execute step C;

[0026] D2. Control the heating module of the print head to stop working, so that the glue in the print head gradually cools down and solidifies as the last ring structure is printed, until it is basically solidified and no longer flows out when the printing is completed;

[0027] D3. Control the switch valve of the print head to switch to a closed state, and at the same time control the heating module to work again.

[0028] Furthermore, in step D, the print head remains in an open state, specifically comprising:

[0029] D4. Sense whether the current number of printing of the annular structure is the last time for the cylinder, if so, execute step D5, otherwise continue to execute step C;

[0030] D5. The print head is kept open, and the print head is controlled to move relative to the base so that the print head moves to the next barrel position, and the rubber material falls into the gap between the two barrel positions during the movement;

[0031] D6. The print head performs step B at the next barrel position, and moves back and forth between the two barrel positions after performing step B multiple times, so that a reinforcement portion is formed between the two barrel positions;

[0032] Among them, the specific values ​​of the multiple times in step D6 are smaller than the specific values ​​of the several times in step C.

[0033] Furthermore, the step of moving back and forth between the two barrel positions after executing step B multiple times specifically includes:

[0034] D61. After completing the printing of a ring structure, the print head moves toward the direction of the previous barrel position, and the moving distance is L1;

[0035] D62. The print head returns to its position and completes printing of the next annular structure, and then moves toward the direction of the previous barrel position, with a moving distance of L2; wherein L2 = k*L1, k is a constant and the value range of k is 1.1-1.3;

[0036] D63. Repeat D62 until L n The value is the distance between two adjacent barrel positions;

[0037] D64. Keep the moving distance at L n Execute D62 until the length of the reinforcement section is L n The thickness of the part reaches the preset value.

[0038] Beneficial effects of the present invention: The present invention realizes the effect of spiral printing firework tubes by using 3D printing and the cooperation of various modules of 3D printing equipment, thereby effectively reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0041] like Figure 1 As shown, the present invention provides a method for spirally printing a firework base, which is applied to a 3D printing device and includes the following steps:

[0042] A. A molded base, wherein the base has at least one barrel position;

[0043] B. Printing a ring structure in the barrel;

[0044] C. Repeat step B several times, each time the ring structure is located directly above the previous ring structure, and the end of each ring structure is the beginning of the previous ring structure; multiple ring structures are stacked in sequence to form a firework tube.

[0045] That is, the 3D printing device implementing the present invention must have at least three drive modules, namely, an X-axis module, a Y-axis module and a Z-axis module, which cooperate to control the movement of the print head relative to the print base in three-dimensional space to print out objects of desired shapes.

[0046] Based on this, the present invention controls the movement of the print head relative to the print base through the cooperation of the X-axis module and the Y-axis module, so as to achieve the effect of printing an annular structure on the print base; after printing an annular structure, the Z-axis module drives the print head to descend a height relative to the print base, and the height is determined by the thickness of the annular structure, so that the print head prints the next annular structure with the end of the annular structure as the starting end…Through the above method, the printing of multiple annular structures stacked in sequence is realized, and the cylinder is formed by the cooperation of multiple annular structures.

[0047] Since the printing path of the print head of the present invention is spiral, the effect of continuously printing a cylinder can be achieved, which is beneficial to improving efficiency. In addition, the firework base prepared by the present invention is made of plastic, which is easier to recycle and is beneficial to environmental protection.

[0048] Specifically, in step A, the number of barrel positions can be a single one or multiple. When the number of barrel positions is multiple, adjacent barrel positions are arranged at intervals.

[0049] In this embodiment, taking the number of cylinder positions as multiple as an example, the present invention further includes:

[0050] D. Keep the print head in the printing state or switch it to the closed state, and control the print head to move from the current barrel position to the next barrel position, and perform steps B and C at the next barrel position;

[0051] E. Repeat step D until all tube positions are printed with firework tubes.

[0052] That is, after printing a cylinder, the print head can be closed so that the print head no longer discharges material and then moved to the next cylinder position, and then the print head can be reopened to work; or the print head can be kept in the printing state and moved to the next cylinder position, so that there is a connecting structure between the two adjacent cylinder positions. Although the material consumption is increased, the stability of the cylinder strength is guaranteed.

[0053] Specifically, in step C, whenever the formation of a ring-shaped structure is completed, the base is controlled to descend relative to the print head, and the descending height is the height of a ring-shaped structure;

[0054] In step D, when the print head moves from the current barrel position to the next barrel position, the base is controlled to rise so that the height between the base and the print head returns to the initial state.

[0055] In this embodiment, step A specifically includes:

[0056] A1. Print and form one barrel;

[0057] A2. A partition is formed on one side of the barrel, and the thickness of the partition is greater than the thickness of the barrel;

[0058] A3. Repeat steps A1 and A2 until all tubes are formed;

[0059] A4. Print the reinforcement ribs on the outermost tube.

[0060] Wherein, each cylinder position is respectively connected to at least two partitions, and each partition is connected to at least two cylinder positions.

[0061] In actual use, the printing of the base can be separated from the cylinder, that is, after the printing of the base is completed, the cylinder is printed from each cylinder position. This method allows the base and the cylinder to be formed separately, so that one device for printing cylinder positions can cooperate with multiple devices for printing cylinders to adapt to the printing rhythm, which is conducive to improving efficiency.

[0062] Specifically, the bottom of the cylinder is provided with at least two through holes;

[0063] Before step A1, the method further includes: providing a continuous strip structure, wherein the strip structure is used to be recognized by a 3D printing device to form a base;

[0064] After step C, the strip structure is separated from the base.

[0065] The strip structure can be winding, and each barrel position has at least two protrusions at the position corresponding to the barrel position, so that the 3D printing device can recognize the protrusions, and the barrel position is formed with the center of the connection line of the two protrusions as the center of the circle. The thickness of the barrel position is greater than the height of the strip structure; after the base is formed, the strip structure is separated from the base so that the strip structure can be reused.

[0066] By setting the strip structure, the size of each tube position and the distance between adjacent tube positions of the base formed by the present invention meet the requirements, achieving the effect of automatic forming and ensuring the forming quality and efficiency.

[0067] Specifically, in step D, when the print head is switched to a closed state, it specifically includes:

[0068] D1. Sense whether the current number of printing of the annular structure is the last time for the cylinder, if so, execute step D2, otherwise continue to execute step C;

[0069] D2. Control the heating module of the print head to stop working, so that the glue in the print head gradually cools down and solidifies as the last ring structure is printed, until it is basically solidified and no longer flows out when the printing is completed;

[0070] D3. Control the switch valve of the print head to switch to a closed state, and at the same time control the heating module to work again.

[0071] That is, when printing the last annular structure of the cylinder, the heating module is controlled to gradually cool down until it stops working, so that the rubber material gradually solidifies. Preferably, the rubber material solidifies when the last annular structure is printed, so that it no longer flows out of the print head, thereby improving the quality of the formed cylinder and avoiding the print head being directly closed, which causes the final output of the rubber material to be uneven and produce more obvious bulges or accumulation. After the annular structure is printed, the print head is closed. At this time, the heating module can be reopened to reheat the rubber material to the required temperature during the movement of the print head, so as to ensure that when the print head is opened again, the rubber material can flow and be smoothly output to print the next cylinder.

[0072] The present invention is preferably applied to a 3D printing device for granular rubber. This device is a 3D printing device that prints linearly with each other, which has lower cost. However, every time the print head is opened and closed, it is easy to produce graininess / accumulation due to uneven rubber output. Through the application of the present invention, the uneven phenomenon can be reduced as much as possible, ensuring that the appearance of each cylinder is as smooth as possible, and it is also helpful to avoid the occurrence of scratch fireworks caused by graininess / rubber accumulation.

[0073] The working state change of the heating module in this embodiment can be obtained by technicians in this field after multiple tests. It is correlated with parameters such as room temperature and will not be described in detail here.

[0074] Specifically, as another embodiment of the present invention, in step D, when the print head is kept in an open state, it specifically includes:

[0075] D4. Sense whether the current number of printing of the annular structure is the last time for the cylinder, if so, execute step D5, otherwise continue to execute step C;

[0076] D5. The print head is kept open, and the print head is controlled to move relative to the base so that the print head moves to the next barrel position, and the rubber material falls into the gap between the two barrel positions during the movement;

[0077] D6. The print head performs step B at the next barrel position, and moves back and forth between the two barrel positions after performing step B multiple times, so that a reinforcement portion is formed between the two barrel positions;

[0078] Among them, the specific values ​​of the multiple times in step D6 are smaller than the specific values ​​of the several times in step C.

[0079] That is, in this way, all cylinders are formed as one piece, so there will be a path formed by the rubber between adjacent cylinders, which can cover the reinforcement part to further increase the thickness of the partition part, so that the partition part can form the reinforcement part. After the cylinder is printed to a certain height, the reinforcement part can be formed again. Through the cooperation of the two reinforcement parts, the adjacent cylinders can be connected to enhance the strength, so that the cylinder can be kept in an upright state more reliably.

[0080] In this embodiment, the reinforcement portion formed in step D6 is preferably located on the side of the top opening of the cylinder, that is, the reinforcement portion is specially formed when the last few annular structures are formed to minimize the influence of the reinforcement portion on the cylinder forming.

[0081] Specifically, the step of moving back and forth between the two barrel positions after executing step B multiple times specifically includes:

[0082] D61. After completing the printing of a ring structure, the print head moves toward the direction of the previous barrel position, and the moving distance is L1;

[0083] D62. The print head returns to its position and completes printing of the next annular structure, and then moves toward the direction of the previous barrel position, with a moving distance of L2; wherein L2 = k*L1, k is a constant and the value range of k is 1.1-1.3;

[0084] D63. Repeat D62 until L n The value is the distance between two adjacent barrel positions;

[0085] D64. Keep the moving distance at L n Execute D62 until the length of the reinforcement section is L n The thickness of the part reaches the preset value.

[0086] That is, the final shape of the reinforcement part is similar to an inverted trapezoidal structure. Through the setting of steps D61-D64, the length of the moving distance is gradually lengthened until the two cylinders are connected. In addition to supporting the upper rubber material after the lower rubber material solidifies to avoid glue leakage, this setting can also prevent the print head from colliding with the formed cylinder and causing the cylinder to break (because the discharge end of the print head is funnel-shaped).

[0087] In this way, the suspended rubber can be effectively formed, and if the solidification rate of the rubber is slow, the solidified rubber below can also support the rubber above to avoid leakage. In addition, the reinforcement part can be formed by the print head through the coordinated control of the X-axis module and the Y-axis module to move in a winding manner to increase the width, which is conducive to ensuring that the width and thickness of the reinforcement part are large to improve the strength.

[0088] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form.

[0089] As mentioned above, however, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention as long as they do not depart from the contents of the technical solution of the present invention.

Claims

1. A method for spirally printing a firework base, applied to a 3D printing device, characterized in that: The following steps are involved: A. A molded base, wherein the base has at least one barrel position; B. Printing a ring-shaped structure in the barrel; C. Repeat step B several times, each time the ring structure is located directly above the previous ring structure, and the end of each ring structure is the beginning of the previous ring structure; a firework tube is formed by stacking multiple ring structures in sequence.

2. The method for spirally printing a firework base according to claim 1, characterized in that: In step A, there are multiple barrel positions, and adjacent barrel positions are arranged at intervals.

3. The method for spirally printing a firework base according to claim 2, characterized in that: Also includes: D. Keep the print head in the printing state or switch it to the closed state, and control the print head to move from the current barrel position to the next barrel position, and perform steps B and C at the next barrel position; E. Repeat step D until all tube positions are printed with firework tubes.

4. The method for spirally printing a firework base according to claim 1 or 3, characterized in that: In step C, whenever the formation of a ring-shaped structure is completed, the base is controlled to descend relative to the print head, and the descending height is the height of one ring-shaped structure; In step D, when the print head moves from the current barrel position to the next barrel position, the base is controlled to rise so that the height between the base and the print head returns to the initial state.

5. The method for spirally printing a firework base according to claim 2, characterized in that: Step A specifically includes: A1. Print and form one barrel; A2. A partition is formed on one side of the barrel, and the thickness of the partition is greater than the thickness of the barrel; A3. Repeat steps A1 and A2 until all tubes are formed; A4. Print the reinforcement ribs on the outermost tube. Wherein, each cylinder position is respectively connected to at least two partitions, and each partition is connected to at least two cylinder positions.

6. The method for spirally printing a firework base according to claim 5, characterized in that: The bottom of the cylinder is provided with at least two through holes; Before step A1, the method further includes: providing a continuous strip structure, wherein the strip structure is used to be recognized by a 3D printing device to form a base; After step C, the strip structure is separated from the base.

7. The method for spirally printing a firework base according to claim 3, characterized in that: In step D, the print head is switched to a closed state, specifically comprising: D1. Sense whether the current number of printing of the annular structure is the last time for the cylinder, if so, execute step D2, otherwise continue to execute step C; D2. Control the heating module of the print head to stop working, so that the glue in the print head gradually cools down and solidifies as the last ring structure is printed, until it is basically solidified and no longer flows out when the printing is completed; D3. Control the switch valve of the print head to switch to a closed state, and at the same time control the heating module to work again.

8. The method for spirally printing a firework base according to claim 3, characterized in that: In step D, the print head remains in an open state, specifically comprising: D4. Sense whether the current number of printing of the annular structure is the last time for the cylinder, if so, execute step D5, otherwise continue to execute step C; D5. The print head is kept open, and the print head is controlled to move relative to the base so that the print head moves to the next barrel position, and the rubber material falls into the gap between the two barrel positions during the movement; D6. The print head performs step B at the next barrel position, and moves back and forth between the two barrel positions after performing step B multiple times, so that a reinforcement portion is formed between the two barrel positions; Among them, the specific values ​​of the multiple times in step D6 are smaller than the specific values ​​of the several times in step C.

9. The method for spirally printing a firework base according to claim 8, characterized in that: The step of moving back and forth between the two barrel positions after executing step B multiple times specifically includes: D61. After completing the printing of a ring structure, the print head moves toward the direction of the previous barrel position, and the moving distance is L1; D62. The print head returns to its position and completes printing of the next annular structure, and then moves toward the direction of the previous barrel position, with a moving distance of L2; wherein L2 = k*L1, k is a constant and the value range of k is 1.1-1.3; D63. Repeat D62 until L n The value is the distance between two adjacent barrel positions; D64. Keep the moving distance at L n Execute D62 until the length of the reinforcement section is L n The thickness of the part reaches the preset value.

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