Three-dimensional printing and assembling method of large-scale cultural and creative agricultural travel sculpture product

Abstract

The invention discloses a three-dimensional printing and assembling method of a large-scale cultural and creative agricultural travel sculpture product, which belongs to the field of 3D printing, and is characterized in that the reliability of a model is enhanced by building a flange base, presetting a steel structure pipeline, additionally arranging reinforcing ribs in a cavity in the model, hollowing out the model, arranging mortise and tenon joints among connecting parts of the model and the like; the parts are firmer; through a glue spraying and hardening mode, glue is uniformly deposited and attached to the surface of a model, chemical hardening is achieved after complete permeation, and the mechanical strength of a product is improved. The method mainly comprises the following steps: data acquisition for three-dimensional modeling: acquiring data for three-dimensional modeling by using modeling software, performing process splitting on the acquired data through the software, and performing data quality inspection; configuring printing parameters; performing three-dimensional printing and model observation and inspection; blowing sand and polishing the model; and removing floating sand which is not cured by three-dimensional printing on the surface of the model. The three-dimensional printing method is mainly used for three-dimensional printing and assembling of large-scale cultural and creative agricultural travel sculpture products.

Description

Technical Field

[0001] The present invention relates to the field of 3D printing, and more specifically, to a 3D printing and assembly method for a large-scale cultural and creative agricultural tourism sculpture product. Background Art

[0002] Due to the current technology, most 3D printed outdoor sculpture products are small in size, and the existing main 3D printing technology cannot be used outdoors. Although the SLA digital light processing molding surface is smooth, it is affected by temperature outdoors and undergoes uncontrollable deformation. The resin material is prone to yellowing, the material is brittle, and the cost is slightly higher. The specific FDM technology has a heavy texture and a long molding time. SLM selective laser sintering has high molding precision, but it is limited by the molding size and cannot be used to mold sculptures on a large scale. The cost is high, and outdoor metals will corrode naturally. Although the existing technology can produce sculptures through investment casting, lost wax casting, and silicone mold turning, it has invisibly increased the construction time and the product cost is high. For example, a method for making and installing a forged copper sculpture with publication number CN114055990A is stabilized by the skeleton and skeleton structure of the forged copper sculpture. However, its structural cost is high, and the components are connected by splicing. Its stability is also poor, which is not conducive to the promotion and construction of large sculptures. Summary of the invention

[0003] The purpose of the present invention is to provide a three-dimensional printing and assembly method for a large-scale cultural and creative agricultural tourism sculpture product, which can improve the structural stability of the model itself by building a flange base, pre-setting steel structure pipelines and adding reinforcing ribs; hollowing out the model can reduce the weight of the model and reduce costs; arranging yin-yang mortise and tenon joints between the connecting parts of the model can enhance the connection reliability between the parts, making it more stable and convenient to install; through the method of spray hardening, the colloid is evenly deposited and attached to the surface of the model, and chemical hardening is achieved after complete penetration, thereby increasing the mechanical strength of the product.

[0004] The present invention is achieved through the following technical solutions:

[0005] A three-dimensional printing and assembly method for a large-scale cultural and creative agricultural tourism sculpture product comprises the following steps:

[0006] S1: Data acquisition for 3D modeling: Use modeling software to acquire data for 3D modeling, and use the software to process the acquired data and perform data quality inspection;

[0007] S2, configure printing parameters;

[0008] S3, 3D printing and model inspection;

[0009] S4, sand blowing and polishing the model: removing loose sand on the surface of the model that has not been solidified by 3D printing; polishing to remove the step lines formed by reciprocating stacking during the 3D printing process, and further removing loose sand in the gaps;

[0010] S5. Pre-assemble and inspect semi-finished products;

[0011] S6. Glue spraying and hardening on the model surface: Use compressed air to spray glue and penetrate the glue through chemical treatment to improve the mechanical strength of the part surface;

[0012] S7. Finished product inspection: inspect the glue hardening to see if there is any leakage.

[0013] Furthermore, the process splitting in step S1 includes:

[0014] 1) Modular model: split the model to be printed into several scattered parts;

[0015] 2) Build a flange base, which is used to connect to the ground to fix the model; preset steel structure pipelines on the flange base according to the force direction of the model, which are used to insert steel pipes to ensure the mechanical strength of the model;

[0016] 3) Add reinforcing ribs to the internal cavity of the model according to the model structure, and spray the reinforcing ribs inside during 3D printing to improve the mechanical strength of the model and reduce the risk of model deformation;

[0017] 4) Determine whether to hollow out the model cavity according to the model shape, and set sand discharge ports at the parts of the model that need to be hollowed out. The wall thickness of large outdoor cavities is kept at 18mm-22mm, and the wall thickness of indoor cavities is kept at 8mm-12mm; the sand discharge ports are set on the dark side of the model to facilitate sand discharge and subsequent seam filling;

[0018] 5) Set yin-yang mortise and tenon joints between the connecting parts of the split model to facilitate installation and fixation.

[0019] Furthermore, the configuration of printing parameters in step S2 includes configuring the signal for driving the moving parts of the 3D printer, the layer height, the two-dimensional image of the current layer, the vibration frequency of the sander, the movement direction of the sander, the movement path of the nozzle module and the nozzle working code, etc.

[0020] Furthermore, the three-dimensional printing and model inspection in step S3 includes checking the product quality problems caused by sand pulling, sand pushing, no sand dropping, nozzle tilting, and nozzle debonding during the three-dimensional printing process.

[0021] Furthermore, step S5 includes assembling the yin-yang mortise and tenon joints and steel structures set during process splitting to ensure later assembly; inspecting the process splitting, and when interference occurs, adjusting by grinding the yin-yang mortise and tenon joints; further inspecting the floating sand and step patterns, and observing that there are no staggered layers or gaps on the product surface.

[0022] Furthermore, the method further comprises the following steps:

[0023] Installation and fixation: Fill the surface with cement to improve the bearing capacity of the ground, install and fix the flange base on the cement surface, build the steel structure pipeline on the flange base, assemble the parts model on the basis of the steel structure pipeline, and use structural adhesive to bond the mortise and tenon structures.

[0024] Furthermore, the following steps are included:

[0025] Repair after installation: fill the joints of the mortise and tenon joints after the installation of each part model with putty.

[0026] Furthermore, painting: the assembled model is first painted with primer, and then the various parts of the model are artistically painted according to the construction renderings and RAL color chart.

[0027] Furthermore, installation and painting quality inspection: observe the accuracy of filling of product gaps and coloring; when there are defects, repair the corresponding positions.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The reliability of the model is enhanced by building a flange base, pre-setting steel structure pipelines, adding reinforcing ribs to the internal cavity of the model, hollowing out the model, and setting yin-yang mortise and tenon joints between the connecting parts of the model, making the components more solid.

[0030] 2. Building a flange base, pre-setting steel structure pipelines and adding reinforcing ribs can improve the structural stability of the model itself; hollowing out the model can reduce the weight of the model and reduce costs; setting yin-yang mortise and tenon joints between the connecting parts of the model can enhance the reliability of the connection between the parts, making it more stable and easy to install.

[0031] 3. Through the method of spray hardening, the colloid is evenly deposited and attached to the surface of the model. After complete penetration, it achieves chemical hardening and increases the mechanical strength of the product.

[0032] 4. Through data acquisition for 3D modeling, five quality inspection processes including data quality inspection, model inspection, semi-finished product inspection, finished product inspection, installation and painting quality inspection are carried out to ensure the quality of model products and construction safety to the greatest extent, thus achieving complete control of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Embodiment 1, as Figure 1 As shown, a three-dimensional printing and assembly method of a large-scale cultural and creative agricultural tourism sculpture product includes the following steps:

[0036] S1: Data acquisition for 3D modeling: Use ZBrush2022 and 3D MAX2019 modeling software to acquire data for 3D modeling, and use Magics21.0 software to perform process splitting and data quality inspection;

[0037] S2, configure printing parameters;

[0038] S3, 3D printing and model inspection;

[0039] S4, sand blowing and polishing the model: removing loose sand on the surface of the model that has not been solidified by 3D printing; polishing to remove the step lines formed by reciprocating stacking during the 3D printing process, and further removing loose sand in the gaps;

[0040] S5. Pre-assemble and inspect semi-finished products;

[0041] S6. Glue spraying and hardening on the model surface: through chemical treatment (existing technology), compressed air is used to spray glue and penetrate the glue to improve the mechanical strength of the part surface;

[0042] S7. Finished product inspection: inspect the glue hardening to see if there is any leakage.

[0043] Embodiment 2: A three-dimensional printing and assembly method for a large-scale cultural and creative agricultural tourism sculpture product, wherein the process decomposition in step S1 includes:

[0044] 1) Modular model: split the model to be printed into several scattered parts;

[0045] 2) Build a flange base, which is used to connect to the ground to fix the model; preset steel structure pipelines on the flange base according to the force direction of the model, which are used to insert steel pipes to ensure the mechanical strength of the model;

[0046] 3) Add reinforcing ribs to the internal cavity of the model according to the model structure, and spray the reinforcing ribs inside during 3D printing to improve the mechanical strength of the model and reduce the risk of model deformation;

[0047] 4) Determine whether to hollow out the model cavity according to the model shape, and set sand discharge ports at the parts of the model that need to be hollowed out. The wall thickness of large outdoor cavities is kept at 18mm-22mm, and the wall thickness of indoor cavities is kept at 8mm-12mm; the sand discharge ports are set on the dark side of the model to facilitate sand discharge and subsequent seam filling;

[0048] 5) Set yin-yang mortise and tenon joints between the connected parts of the split model to facilitate installation and fixation;

[0049] The configuration of printing parameters in step S2 includes configuring the signal driving the working of the moving parts of the 3D printer, the layer height, the two-dimensional image of the current layer, the vibration frequency of the sander, the movement direction of the sander, the movement path of the nozzle module and the nozzle working code, etc.;

[0050] The three-dimensional printing and model inspection in step S3 includes checking the product quality problems caused by sand pulling, sand pushing, no sand dropping, nozzle tilting, and nozzle debonding during the three-dimensional printing process;

[0051] Step S5 includes assembling the yin-yang mortise and tenon joints and steel structures set during process splitting to ensure later assembly; inspecting the process splitting, and when interference occurs, adjusting by grinding the yin-yang mortise and tenon joints; further inspecting the floating sand and step patterns, and observing that there are no staggered layers or gaps on the product surface;

[0052] It also includes the following steps,

[0053] Installation and fixation: Fill the surface with cement to improve the bearing capacity of the ground, install and fix the flange base on the cement surface, build the steel structure pipeline on the flange base, assemble the parts model on the basis of the steel structure pipeline, and use structural adhesive to bond the mortise and tenon structures;

[0054] It also includes the following steps,

[0055] Repair after installation: fill the joints of the mortise and tenon joints after the installation of each part model with putty;

[0056] Painting: The assembled model is first painted with primer, and then the various parts of the model are artistically painted according to the construction renderings and RAL color chart;

[0057] Installation and painting quality inspection: observe the filling of product gaps and the accuracy of coloring; if there are defects, repair the corresponding positions, and the rest is the same as Example 1.

[0058] The micro-structure parts have less glue penetration than the main body. The hardening of the glue will cause the colloid to deposit excessively on the surface. The complex structure will cause uneven glue. The glue is evenly distributed on the surface of the complex structure by spraying. Through data acquisition, five quality inspection processes such as data quality inspection, model inspection, semi-finished product inspection, finished product inspection, and installation and painting quality inspection during 3D modeling are carried out to ensure the quality of the model product to the greatest extent, ensure construction safety, and achieve complete control of product quality.

Claims

1. A three-dimensional printing and assembly method for a large-scale cultural and creative agricultural tourism sculpture product, characterized in that: The following steps are included: S1: Data acquisition for 3D modeling: Use modeling software to acquire data for 3D modeling, and use the software to process the acquired data and perform data quality inspection; S2, configure printing parameters; S3, 3D printing and model inspection; S4, sand blowing and polishing the model: removing loose sand on the surface of the model that has not been solidified by 3D printing; polishing to remove the step lines formed by reciprocating stacking during the 3D printing process, and further removing loose sand in the gaps; S5. Pre-assemble and inspect semi-finished products; S6. Glue spraying and hardening on the model surface: Through chemical treatment, compressed air is used to spray glue and penetrate the glue to improve the mechanical strength of the part surface; S7. Finished product inspection: inspect the glue hardening to see if there is any leakage.

2. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 1 is characterized by: The process splitting in step S1 includes: 1) Modular model: split the model to be printed into several scattered parts; 2) Build a flange base, which is used to connect to the ground to fix the model; preset steel structure pipelines on the flange base according to the force direction of the model, which are used to insert steel pipes to ensure the mechanical strength of the model; 3) Add reinforcement ribs to the internal cavity of the model according to the model structure, and spray the reinforcement ribs inside during 3D printing to improve the mechanical strength of the model and reduce the risk of model deformation; 4) Determine whether to hollow out the model cavity according to the model shape, and set sand discharge ports at the parts of the model that need to be hollowed out. The wall thickness of large outdoor cavities is kept at 18mm-22mm, and the wall thickness of indoor cavities is kept at 8mm-12mm; the sand discharge ports are set on the dark side of the model to facilitate sand discharge and subsequent seam filling; 5) Set yin-yang mortise and tenon joints between the connecting parts of the split model to facilitate installation and fixation.

3. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 1 is characterized by: The configuration of printing parameters in step S2 includes configuring the signal for driving the moving parts of the 3D printer, the layer height, the two-dimensional image of the current layer, the vibration frequency of the sander, the movement direction of the sander, the movement path of the nozzle module and the nozzle working code.

4. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 1 is characterized by: The three-dimensional printing and model inspection in step S3 includes checking the product quality problems caused by sand pulling, sand pushing, no sand dropping, nozzle tilting, and nozzle debonding during the three-dimensional printing process.

5. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 2 is characterized by: Step S5 includes assembling the yin-yang mortise and tenon joints and steel structures set during process splitting to ensure later assembly; inspecting the process splitting, and when interference occurs, adjusting by grinding the yin-yang mortise and tenon joints; further inspecting the floating sand and step patterns, and observing that there are no staggered layers or gaps on the product surface.

6. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 1, characterized in that: It also includes the following steps, Installation and fixation: Fill the surface with cement to improve the bearing capacity of the ground, install and fix the flange base on the cement surface, build the steel structure pipeline on the flange base, assemble the parts model on the basis of the steel structure pipeline, and use structural adhesive to bond the mortise and tenon structures.

7. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 6 is characterized by: It also includes the following steps, Repair after installation: fill the joints of the mortise and tenon joints after the installation of each part model with putty.

8. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 7 is characterized by: It also includes the following steps, Painting: The assembled model is first painted with primer, and then the various parts of the model are artistically painted according to the construction renderings and RAL color chart.

9. The three-dimensional printing and assembly method of the large-scale cultural and creative agricultural tourism sculpture product according to claim 8, characterized in that: It also includes the following steps, Installation and painting quality inspection: observe the accuracy of filling gaps and coloring of products; if there are defects, repair the corresponding positions.

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