Thin and light surface processing equipment and processing method

Abstract

The present invention provides a thin surface processing device and a processing method. The thin surface processing device includes a rigid frame, a material supply device arranged on the rigid frame for providing a printing base layer, a synchronous transmission device arranged on the rigid frame for transmitting the printing base layer, and a printing device arranged on the rigid frame for printing based on the printing base layer provided by the material supply device, which can further improve the efficiency of processing thin surfaces.

Description

Technical Field

[0001] The present invention relates to the field of 3D printing, and in particular to a thin surface processing device and a processing method. Background Art

[0002] With the continuous improvement of the performance of 3D printing equipment, the material system used for 3D printing has also been continuously improved, especially in terms of polymer materials. The stability of corresponding polymer 3D printing equipment such as light curing (LCD / DLP / SLA), melt extrusion (Full name in English: Fused Deposition Modeling, abbreviated as FDM), and powder sintering molding (SLS / MJET) has been continuously improved, and the cost has been rapidly reduced. At the same time, because 3D printing technology has the characteristics of highly customized printed components, the application scope of this technology has rapidly expanded to the personal consumption field, especially in highly personalized fields such as the hearing aid industry, the dental correction industry, and the corrective insole industry.

[0003] Recently, there have been public reports of multiple manufacturers, both domestically and internationally, releasing new 3D-printed athletic shoes. In particular, one domestic brand not only used powder sintering equipment to create a three-dimensional lattice-structured sole, but also melt extrusion equipment to create an elastic mesh upper, achieving 3D printing of entire shoe components. This demonstrates the widespread adoption of polymer-based 3D printing in consumer applications, including high-volume, personalized applications. The melt extrusion process, combined with functionally rich polymer materials, enables the production of thin, breathable printed surfaces. 3D printing also offers a rich and personalized range of customizable patterns to meet the diverse functional and aesthetic needs of diverse consumer groups. Currently, personalized, thin surfaces are already being used in a variety of aesthetically pleasing products, including clothing, shoe uppers, handbags, backpacks, and accessories. This application is expected to expand further in the future, while increasing the printing efficiency of melt extrusion processes will undoubtedly be a challenge.

[0004] Currently, for the processing of large-scale, personalized thin and light surfaces, the principles of the melt extrusion process and the problems that exist in its processing process will limit further improvements in processing efficiency. On the one hand, the melt extrusion process is a nozzle extrusion stacking process. The nozzle needs to traverse the entire thin and light surface according to the line width. At the same time, the first layer of printing needs to be fully bonded to the printing base, which further reduces printing efficiency. On the other hand, the probability of nozzle clogging and material dripping during the printing process will increase with the increase of continuous printing time. In addition, in the process of large-scale personalized customized production of thin and light surfaces, traditional melt extrusion single machines require frequent manual equipment operation when printing thin and light surfaces, which is not conducive to large-scale continuous production operations and also adds additional costs. Summary of the Invention

[0005] In view of this, it is necessary to provide a thin surface processing equipment and processing method to address the above problems, which can further improve the efficiency of processing thin surfaces.

[0006] The present invention provides a thin surface processing equipment, including a rigid frame, characterized in that a material supply device is arranged on the rigid frame for providing a printing base layer, a synchronous conveying device is arranged on the rigid frame for transmitting the printing base layer, and a printing device is arranged on the rigid frame for performing melt extrusion printing based on the printing base layer provided by the material supply device.

[0007] This arrangement provides a printing substrate for the printing device, upon which printing is performed, thereby resolving the problem of low printing efficiency caused by the need for sufficient adhesion of the first layer to the printing base plate. Furthermore, the synchronous conveying device can continuously and automatically transport the printing substrate to the printing device.

[0008] In one embodiment of the present invention, the material supply device includes a laser cutting device, wherein the laser cutting device is used to cut the material film to be cut into a printing base layer, including a laser cutting platform and a laser cutter, the laser cutting platform is fixed to the rigid frame, and the laser cutter is located above the laser cutting platform.

[0009] With such a setting, the laser cutting device can be used to cut the material film to be cut into a specific shape to meet different printing requirements; at the same time, the laser cutting device can achieve the purpose of continuously providing a printing base layer from the material film to be cut to the printing device.

[0010] In one embodiment of the present invention, the laser cutting device includes a waste cleaning component, wherein the waste cleaning component is arranged between the laser cutting platform and the printing device to remove the waste film formed during the process of the laser cutter cutting the material film to be cut.

[0011] In this way, through the setting of the waste cleaning component, the waste film formed during the laser cutter cutting the material film to be cut can be cleared to avoid the waste film affecting subsequent printing, which provides the possibility of improving printing efficiency.

[0012] In one embodiment of the present invention, the waste cleaning assembly includes a cleaning nozzle and an air compressor, the cleaning nozzle is located between the laser cutting platform and the printing device, and the air compressor is connected to the cleaning nozzle.

[0013] With this setting, through the coordinated use of the cleaning nozzle and the air compressor, the waste film formed during the laser cutter cutting the material film to be cut can be effectively removed to avoid the waste film affecting subsequent printing, providing conditions for further improving printing efficiency.

[0014] In one embodiment of the present invention, the waste cleaning assembly includes two cleaning scrapers that are spaced apart and located between the laser cutting platform and the printing device, and the interval between the two cleaning scrapers is adjustable.

[0015] With such an arrangement, the cleaning scraper can, on the one hand, clean the waste film, and on the other hand, cooperate with the cleaning nozzle to achieve two-level cleaning of the waste film, providing conditions for further improving printing efficiency.

[0016] In one embodiment of the present invention, the material supply device further comprises a material support device provided on one side of the laser cutting device, wherein the material support device comprises a material bracket for supporting a material drum wound with the material film to be cut.

[0017] With this arrangement, the entire material roll can be stored by the material holder, so as to continuously provide the laser cutting device with the material film to be cut, so as to realize the automation of the production process and avoid frequent manual loading.

[0018] In one embodiment of the present invention, the material support device further includes a guide bracket, wherein the guide bracket is arranged on both sides of the material bracket.

[0019] In this way, the guide bracket can be used to prevent the material roller from moving along a direction perpendicular to the movement direction of the material film to be cut.

[0020] In one embodiment of the present invention, the synchronous conveying device includes a first conveying unit, a second conveying unit and a synchronous conveying unit, wherein the second conveying unit drives the first conveying unit to rotate synchronously through the synchronous conveying unit, the first conveying unit is arranged above the laser cutting platform, and the second conveying unit is arranged below the printing device.

[0021] With this arrangement, the second conveying unit can transfer the printed substrate to the printing device. At the same time, the first conveying unit can move along with the movement of the second conveying unit through the synchronous conveying unit, thereby ensuring that the material film maintains the same amplitude of movement on the laser cutting device and the printing device.

[0022] In one embodiment of the present invention, the first conveying unit includes two groups of first synchronous roller assemblies, the two groups of the first synchronous roller assemblies are arranged on both sides of the laser cutting platform, and each group of the first synchronous roller assemblies includes two first synchronous rollers arranged at intervals.

[0023] In this way, two groups of first synchronous roller assemblies are set up, which can be used to keep the material film to be cut on the laser cutting platform flat. At the same time, the two groups of first synchronous roller assemblies of the first conveying unit play a connecting role with the second conveying unit through the synchronous conveying unit, so that the printing position of the printing device corresponds to the cutting position of the laser cutting device.

[0024] In one embodiment of the present invention, the first conveying unit further includes two groups of guide assemblies corresponding to the two groups of the first synchronous rollers, and each group of the guide assemblies is correspondingly arranged on the front side of the first synchronous roller.

[0025] In this way, by arranging a group of guide assemblies on the front side of each group of first synchronous roller assemblies, it can be ensured that the material film to be cut passing through the two first synchronous rollers moves along a movement direction perpendicular to the movement direction of the material film to be cut.

[0026] In one embodiment of the present invention, the second conveying unit includes a conveyor belt assembly and multiple sets of second synchronous roller assemblies, wherein the conveyor belt assembly is arranged below the multiple sets of second synchronous roller assemblies, and the second synchronous roller assembly is driven to rotate by the conveyor belt assembly.

[0027] With such an arrangement, on the one hand, the conveyor belt assembly can transport the printing substrate to the printing position of the printing device, and on the other hand, the arrangement of multiple groups of second synchronous roller assemblies can keep the printing substrate able to move smoothly.

[0028] In one embodiment of the present invention, the conveyor belt assembly includes a conveyor belt and a driving motor, the driving motor drives the conveyor belt and the synchronous conveying unit to rotate synchronously, and the conveyor belt is used to transport the printing substrate.

[0029] With such an arrangement, the drive motor can drive the conveyor belt to transport the printing substrate to the printing position of the printing device. The drive motor can also drive the conveyor belt and the synchronous transmission unit to rotate synchronously, and the synchronous transmission unit can drive the first synchronous roller assembly to maintain the same amplitude of movement.

[0030] In one embodiment of the present invention, the printing device includes a printing platform unit and a printing unit, the printing platform unit is arranged below the printing unit, and the printing base layer is transmitted to a preset position of the printing platform unit through a second conveying unit so that the printing unit can print on the basis of the printing base layer.

[0031] With this arrangement, the printing platform unit can stably fix the printing substrate during printing so that the printing unit can print; it can also release the fixation of the printing substrate when moving the printing substrate and transport it to a preset position through the second transport unit.

[0032] In one embodiment of the present invention, the printing platform unit includes a printing platform, a plurality of air permeable grooves arranged on the printing platform, a vacuum pump connected to the air permeable grooves and a pressure sensor installed on the side of the printing platform. The printing platform unit is placed below the conveyor belt, and the conveyor belt has a plurality of air holes corresponding to the air permeable grooves.

[0033] With this setup, the vacuum pump creates a negative pressure inside the print platform, securing the conveyor belt and the printed substrate on it in place. This allows the printed substrate to form a flat surface on the conveyor belt, ready for subsequent printing. After the current print job is completed, the air pressure inside the print platform is adjusted to reduce the print platform's adhesion to the conveyor belt, allowing the printed substrate to be moved.

[0034] In one embodiment of the present invention, the printing unit includes a plurality of FDM printers arranged at equal intervals and a plurality of heaters corresponding to each of the FDM printers, wherein each heater is arranged at the front side of the corresponding FDM printer.

[0035] Such a setting, with multiple FDM printers, can be flexibly configured and selected to meet the needs of personalized configuration such as color and shape of thin surfaces.

[0036] In one embodiment of the present invention, a control unit is further included, wherein the control unit is connected to the printing device, the material supply device and the synchronous conveying device respectively.

[0037] With such an arrangement, the printing device, the material supply device and the synchronous conveying device can be controlled by the control unit, so that the printing process can be continuous and automated, and the thin surface processing process does not require human intervention, which can well meet the application requirements of thin surface mass production.

[0038] The present invention also provides a thin surface processing method, which uses the thin surface processing equipment described above, and the method comprises:

[0039] Providing a printing base layer through a material supply device;

[0040] Moving the printing substrate provided by the material supply device to a printing device along a moving direction by a synchronous conveying device;

[0041] By means of a printing device, melt extrusion printing is performed based on the printing base layer to obtain a light and thin surface.

[0042] In one embodiment of the present invention, the step of providing the printing substrate by the material supply device further includes the steps of:

[0043] Provide the material film to be cut;

[0044] The film of the material to be cut is laser cut by a laser cutting device to obtain a printing base layer.

[0045] In one embodiment of the present invention, after the printing substrate provided by the material supply device is moved into the printing device along the motion direction by the synchronous conveying device, the method further includes the following steps:

[0046] .Transfer the printing base layer to a preset position of the printing platform of the printing device through the second transmission unit; while the second transmission unit is transmitting, the first transmission unit is driven to rotate through the synchronous transmission unit to move a preset set distance in preparation for the steps.

[0047] In one embodiment of the present invention, the step of transferring the printing substrate to a preset position of a printing platform of a printing device via a second transfer unit includes the following steps:

[0048] The waste cleaning component is used to remove waste film formed during the cutting process of the material film to be cut by the laser cutting device.

[0049] In one embodiment of the present invention, the step of removing the waste film formed during the cutting process of the material film to be cut by the laser cutting device by using the waste cleaning component further includes the following steps:

[0050] The waste film is removed by a cleaning nozzle connected to a vacuum pump.

[0051] In one embodiment of the present invention, the step of removing the waste film formed during the cutting process of the material film to be cut by the laser cutting device by using the waste cleaning component further includes the following steps:

[0052] The waste film is removed by a cleaning blade.

[0053] In one embodiment of the present invention, the step of performing melt extrusion printing on the printing base layer by a printing device to obtain a thin surface further includes the following steps:

[0054] After the printing substrate conveyed by the second conveying unit is moved to a preset position, the printing platform adsorbs the printing substrate onto the surface of the conveyor belt under the action of a vacuum pump;

[0055] heating the printing substrate to a preset temperature by the current heater in preparation for printing;

[0056] The film materials based on the printing base layer are heated and printed one by one by using multiple FDM printers to form a light and thin surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a schematic structural diagram of a thin surface processing device according to an embodiment of the present invention.

[0058] Figure 2 This is a schematic structural diagram of the laser cutting device of the above embodiment of the present invention when cutting a thin film of material to be cut.

[0059] Figure 3 It is a schematic diagram of the waste cleaning assembly according to the above embodiment of the present invention cleaning a waste film through a cleaning nozzle.

[0060] Figure 4 It is a schematic structural diagram of a cleaning blade cleaning a waste film according to the above embodiment of the present invention.

[0061] Figure 5 Schematic diagram of the positional relationship among the printing platform, conveyor belt and printing substrate of the above embodiment of the present invention.

[0062] Figure 6 This is a structural diagram of the printing unit of the above embodiment of the present invention performing printing based on the printing base layer.

[0063] Figure 7 Schematic diagram of the connection relationship between the control unit and various components of the above embodiment of the present invention.

[0064] 10. Rigid frame; 20. Material supply device; 21. Laser cutting platform; 22. Laser cutter; 221. Laser beam; 23. Waste cleaning assembly; 231. Cleaning nozzle; 232. Air compressor; 233. Cleaning scraper; 24. Material support; 241. Guide support; 30. Synchronous conveyor; 31. First conveyor unit; 311. First synchronous roller assembly; 3111. First synchronous roller; 312. Guide assembly; 32. Synchronous conveyor unit; 33. Second conveyor unit; 331. Conveyor Feeding belt; 332, second synchronous roller assembly; 3321, second synchronous roller; 333, air hole; 334, driving motor; 40, printing device; 41, printing platform unit; 411, printing platform; 412, air vent; 413, vacuum pump; 414, pressure sensor; 42, printing unit; 421, FDM printer; 4211, printed model; 422, heater; 50, control unit; 60, material roller; 61, material film to be cut; 62, printing base layer; 63, waste film. DETAILED DESCRIPTION

[0065] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0066] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0068] See also Figure 1 , is a schematic structural diagram of a thin surface processing device in one embodiment of the present invention. The present invention provides a thin surface processing device for producing thin surfaces and improving the processing efficiency of thin surface production. The present invention provides a thin surface processing device for producing thin surfaces based on melt extrusion printing and improving the processing efficiency of thin surface production. Here, the so-called thin surface refers to a thin, breathable printed surface formed using a melt extrusion printing method.

[0069] like Figure 1As shown, the thin surface processing equipment includes a rigid frame 10, a material supply device 20, a synchronous conveying device 30, a printing device 40, and a control unit 50. The material supply device 20 is provided on the rigid frame 10 and is used to provide a printing substrate 62. The synchronous conveying device 30 is provided on the rigid frame 10 and is used to transport the printing substrate 62. The printing device 40 is provided on the rigid frame 10 and performs melt extrusion printing based on the printing substrate 62 provided by the material supply device 20 to obtain a thin surface. The control unit 50 is electrically connected to or communicatively connected to the material supply device 20, the synchronous conveying device 30, and the printing device 40 to realize control of the material supply device 20, the synchronous conveying device 30, and the printing device 40. In the present invention, the printing substrate 62 is a material film having a specific shape. The printing substrate 62 can be directly processed by other methods, or it can be processed into a material film having a specific shape by the material supply device 20 of the present invention. Furthermore, when producing thin and light surfaces, the printing device 40 prints based on the printing base layer 62, creating a thin and light surface. This avoids the time-consuming and inefficient first-layer printing associated with traditional thin and light surface printing. Printing based on the printing base layer 62 refers to printing on the printing base layer 62 using a melt extrusion printing method. Thus, the thin and light surface formed by the processing is the printed surface formed by the combination of the printing base layer 62 and the pattern printed by the printing device 40.

[0070] like Figure 1 and Figure 2 As shown, the material supply device 20 includes a laser cutting device and a material support device arranged on one side of the laser cutting device, wherein the laser cutting device can cut the material film 61 to be cut into a printing base layer 62, and the material support device is used to support the material roller 60 densely wound by the material film 61 to be cut, so as to continuously provide the material film 61 to be cut to the laser cutting device.

[0071] Specifically, if Figure 2As shown, the laser cutting device includes a laser cutting platform 21 and a laser cutter 22. The laser cutting platform 21 is fixed to a rigid frame 10 to support a material film 61 to be cut. The laser cutter 22 is located above the laser cutting platform 21 and can emit a laser beam 221 to cut the material film 61 to be cut into a printing base layer 62. The laser cutter 22 can be connected to a control unit 50 so that the shape of the cutting can be adjusted to obtain printing base layers 62 of different shapes. It is worth mentioning that at the contour edge between each two printing base layers 62 cut by the laser cutter 22 provided by the present invention, a connection point that is not cut is reserved at the position where it is connected to the overall material film to prevent the entire printing base layer 62 from falling off from the overall material film 61 to be cut. Those skilled in the relevant field should understand that in the present invention, the material film 61 to be cut is wound through a sealed chamber to form a material roller 60, and the material roller 60 is installed on a material support device. The material film 61 to be cut cut by the laser cutter 22 of the laser cutting device will form a printing base layer 62 and a waste film 63. The so-called waste film 63 is a material film formed during the cutting process of the laser cutter 22.

[0072] Furthermore, if Figure 3 and Figure 4 As shown, the laser cutting device includes a waste cleaning component 23, wherein the waste cleaning component 23 is arranged between the laser cutting platform 21 and the printing device 40 to remove the waste film 63 formed during the laser cutter 22 cutting the material film 61 to be cut. Figure 3 As shown, the waste cleaning assembly 23 includes a cleaning nozzle 231 and an air compressor 232. The cleaning nozzle 231 is located between the laser cutting platform 21 and the printing device 40, and the air compressor 232 is connected to the cleaning nozzle 231. With this arrangement, the cleaning nozzle 231 connected to the air compressor 232 is used to clean the waste film 63 after cutting by air blowing to prevent the waste film 63 from affecting subsequent printing, thereby providing conditions for further improving printing efficiency. Figure 4 As shown, the waste cleaning component 23 may also include two cleaning scrapers 233 that are spaced apart and located between the laser cutting platform 21 and the printing device 40. The spacing between the two cleaning scrapers 233 can be adjusted. By adjusting the spacing between the two cleaning scrapers 233, the cut waste film 63 can just pass through, thereby further cleaning the cut material film and further removing the waste film 63.

[0073] like Figure 1 As shown, the material support device includes a material support 24, which is used to support a material roller 60 tightly wound with a material film 61 to be cut, so as to realize the automation of providing the material film 61 to be cut during the laser cutting process and avoid frequent manual loading.

[0074] Furthermore, to prevent the material roller 60 from moving in a direction perpendicular to the direction of movement of the material film 61 to be cut, guide brackets 241 are provided on both sides of the material bracket 24. Here, the direction of movement of the material film 61 to be cut is the direction of movement of the synchronous conveying unit 32 transporting the printing substrate 62. Specifically, in the present invention, the direction of movement of the material film 61 to be cut can be defined as the direction of movement along the left end of the rigid frame 10 toward the right end of the rigid frame 10, or the direction of movement from the laser cutting device toward the printing device 40.

[0075] like Figure 1 As shown, the synchronous conveying device 30 includes a first conveying unit 31, a second conveying unit 33, and a synchronous conveying unit 32. The second conveying unit 33 drives the first conveying unit 31 to rotate synchronously with the synchronous conveying unit 32. The first conveying unit 31 is disposed above the laser cutting platform 21, and the second conveying unit 33 is disposed below the printing device 40. The second conveying unit 33 is used to convey the printing substrate 62 to the printing position of the printing device 40. The second conveying unit 33 can continuously transfer the material film 61 to be cut to the laser cutting device, thereby continuously forming the printing substrate 62, and then convey the printing substrate 62 to the second conveying unit 33 under the drive of the synchronous conveying unit 32. The synchronous conveying unit 32 moves with the movement of the second conveying unit 33, thereby ensuring that the material film maintains the same amplitude of movement on the laser cutting device and the printing device 40.

[0076] Specifically, the first conveying unit 31 includes two sets of first synchronous roller assemblies 311, which are arranged on both sides of the laser cutting platform 21. Each set of first synchronous roller assemblies 311 includes two first synchronous rollers 3111 spaced apart. The material film 61 to be cut passes between the two first synchronous rollers of each set of first synchronous roller assemblies 311 to ensure that the material film 61 to be cut on the laser cutting platform 21 remains flat. At the same time, the two sets of first synchronous roller assemblies 311 of the first conveying unit 31 play a supporting role with the second conveying unit 33 through the synchronous conveying unit 32, so that the printing position of the printing device 40 corresponds to the cutting position of the laser cutting device. Here, the synchronous conveying unit 32 can be implemented as a conveying method such as a conveyor belt to drive the first synchronous rollers 3111 of the first conveying unit 31 to rotate.

[0077] Furthermore, to prevent the film 61 to be cut from passing between the two first synchronous rollers 3111 from moving in a direction perpendicular to the direction of motion of the film 61 to be cut, the first conveying unit 31 further includes two sets of guide assemblies 312 corresponding to the two sets of first synchronous rollers 3111. Each set of guide assemblies 312 is correspondingly disposed on the front side of the first synchronous rollers 3111. Specifically, for the guide assemblies 312 near the material support 24, the first synchronous rollers 3111 are disposed between the material support 24 and the current guide assemblies 312. For the guide assemblies 312 near the printing device 40, the first synchronous rollers 3111 are disposed between the laser cutting platform 21 and the current guide assemblies 312. In a specific implementation, each set of guide assemblies 312 includes two symmetrically spaced guide members. By adjusting the spacing between the two guide members, it is possible to ensure that the film 61 to be cut moves in a direction perpendicular to the direction of motion of the film 61 to be cut.

[0078] like Figure 1 As shown, the second conveying unit 33 includes a conveyor belt assembly and multiple groups of second synchronous roller assemblies 332, wherein the conveyor belt assembly is arranged below the multiple groups of second synchronous roller assemblies 332 to transport the printing base layer 62 to the printing position of the printing device 40, and the second synchronous roller assembly 332 is driven to rotate by the conveyor belt 331 assembly to keep the printing base layer 62 able to move or be fixed flatly on the conveyor belt 331 assembly.

[0079] Specifically, the conveyor belt assembly includes a conveyor belt 331 and a drive motor 334. The drive motor 334 drives the conveyor belt 331 and the synchronous transmission unit 32 to rotate synchronously. The conveyor belt 331 is used to transmit the printing substrate 62. The drive motor 334 drives the conveyor belt 331 to transport the printing substrate 62 to the printing position of the printing device. The drive motor 334 can also drive the conveyor belt 331 and the synchronous transmission unit 32 to rotate synchronously, and the synchronous transmission unit 32 drives the first synchronous roller assembly 311 to maintain the same amplitude of movement. Specifically, the second synchronous roller assembly 332 includes a plurality of second synchronous rollers 3321 that are spaced apart, and are spaced apart on a rigid bracket to ensure that the printing substrate 62 is flat when the printing substrate 62 is transmitted on the conveyor belt 331. In order to better control the rotation speed of the transmission belt assembly, such as Figure 7 As shown, the driving motor 334 can be electrically connected to the control unit 50 to more accurately control the driving motor 334.

[0080] like Figure 1As shown, the printing device 40 provided by the present invention may include a printing platform unit 41 and a printing unit 42. The printing platform unit 41 is arranged below the printing unit 42, and the printing base layer 62 is transmitted to the preset position of the printing platform unit 41 through the second conveying unit 33 so that the printing unit 42 can print on the basis of the printing base layer 62.

[0081] Specifically, if Figure 5 As shown, the printing platform unit 41 includes a printing platform 411, a plurality of ventilation slots 412 provided on the printing platform 411, a vacuum pump 413 connected to the ventilation slots 412, and a pressure sensor 414 installed on the side of the printing platform 411. The printing platform unit 41 is placed below the conveyor belt 331, and the conveyor belt 331 has a plurality of air holes 333 corresponding to the ventilation slots 412. It is worth mentioning that the width of the ventilation slots 412 is set to ensure that the conveyor belt 432 above the ventilation slots is flat under a certain negative pressure. The number and diameter of the air holes 401 of the conveyor belt 432 are determined by the minimum contour feature of the laser cutting device and are not limited here.

[0082] like Figure 7 As shown, the pressure sensor 414 and vacuum pump 413 can be connected to the control unit 50 to better ensure that the printing platform unit 41 and the printing substrate 62 are stably attached to the conveyor belt 331. Under the action of the vacuum pump 413, a negative pressure environment is formed within the printing platform 411, which fixes the conveyor belt 331 and the printing substrate 62 thereon in their current position, allowing the printing substrate 62 to form a flat surface on the conveyor belt 331. In other words, the present invention uses negative pressure adsorption to adsorb the conveyor belt 432 and the printing substrate 62 thereon onto the printing platform 411, thereby constructing the flat printing surface required by the printing unit 42, enabling high-precision melt extrusion printing on the movable printing substrate 62. After the current printing job is completed, the air pressure within the printing platform 411 is adjusted by the control unit 50 to reduce the adsorption force of the printing platform 411 on the conveyor belt 331, thereby allowing the printing substrate 62 to be moved.

[0083] like Figure 1 and Figure 6As shown, the printing unit 42 provided by the present invention may include a plurality of FDM printers 421 arranged at equal intervals and a plurality of heaters 422 corresponding to each FDM printer 421, wherein each heater 422 is arranged on the front side of the corresponding FDM printer 421 so as to heat the printing base layer 62 to a predetermined temperature in advance when the current FDM printer 421 is printing. The present invention adopts a continuous printing base layer 62 as the substrate for printing thin surfaces, and at the same time designs the composite processing of the laser cutting device and the melt extrusion printing device as a multi-station step-by-step processing process, so that the material film can be processed into a thin surface after passing through the multiple FDM printers 421 of all the printing units, so that the processing process is continuous and automated, which greatly improves the processing efficiency and saves costs. Figure 7 As shown, to better control the FDM printer 421 and heater 422 of the printing unit 42, each FDM printer 421 and each heater 422 can be electrically connected to a control unit 50. Control of the printing unit 42 by the control unit 50 enables a continuous and automated printing process, eliminating the need for manual intervention during the thin-film processing process and effectively meeting the application requirements of thin-film mass production. Here, the FDM printer 421 refers to a printing device that uses the melt extrusion process as its printing principle.

[0084] Specifically, in other embodiments of the present invention, the printing unit 42 includes 6 FDM printers 421 and 6 heaters 422, wherein each processed thin surface can have 5 different colors, and the control unit 50 can print a fixed pattern or different patterns in the same color according to the slicing data. In this way, a variety of different patterns and a variety of different color combinations will produce a large number of personalized and diversified thin surfaces with different shapes.

[0085] The thin-film processing equipment provided by the present invention operates as follows: a film of material to be cut is pulled from the material support 24 on the material roller 60, passed through the first synchronous rollers 3111 on either side of the laser cutting platform 21, and then adjusted to flatten the film on the laser cutting platform 21. The guide assembly 312 is then adjusted to prevent the film roller 60 from moving perpendicularly to the direction of the film 61 to be cut. The laser cutter 22, controlled by the control unit 50, cuts the film onto the cutting platform into a pattern of a specific shape, forming a printed substrate 62. Uncut points are reserved at the edges of the printed substrate 62 where it connects to the entire film, preventing the pattern from falling off the film. After cutting, the synchronous rollers on the left and right sides of the laser cutting platform 21, driven by the synchronous conveyor unit 32 and the second conveyor unit 33, rotate synchronously, moving the entire film toward the printing device and, in turn, toward the station of the FDM printer 421 by one station width, where the station width is the distance between two adjacent FDM printers 421. Because the distance between the origin of the laser cutter 22 and each FDM printer 421 is known, and the origins of two adjacent FDM printers 421 are equidistant, the distance the next laser cutting position needs to move is the station width between the FDM printers 421. During this movement, the cutting cleaning assembly on the right side of the laser cutting platform 21 begins to operate, removing the waste film 63 remaining on the cutting surface.

[0086] During printing, the conveyor belt assembly drives the conveyor belt 331 and its multiple second synchronous roller assemblies 332, moving the printing substrate 62 to the printing position of the next FDM printer 421. As the printing substrate 62 moves to each FDM printer 421, the heater 422 in front of the FDM printer 421 begins operating, heating the surface of the material to be printed to a specified temperature. The material to be printed here can refer to the printing substrate 62 or to the material formed by the printed model on the printing substrate 62, but not yet forming a thin surface. Specifically, when the printing material moves to the printing position of the first FDM printer 421, the material to be printed refers to the printing substrate 62. When the material to be printed moves to the printing position of the second, and finally the last, FDM printers 421, the material to be printed refers to the combination of the printing substrate 62 and the printed model. Furthermore, when the last FDM printer 421 completes printing, a thin surface is formed. After reaching the moving position, the vacuum pump 413 creates a negative pressure environment within the printing platform 411, securing the conveyor belt 331 and the film thereon in their current positions. This allows the film to form a flat surface on the conveyor belt 331, allowing FDM printing to proceed. Each FDM printing module can print different patterns at its respective printing position according to the print settings preset by the control unit 50. Each time an FDM printer 421 is completed, the control unit 50 adjusts the air pressure within the printing platform 411 to reduce the adhesion of the printing platform 411 to the conveyor belt 331. The entire conveyor belt 331 is then moved the distance of one FDM printer 421. This process repeats until the last FDM printer 421 completes printing, forming a thin surface.

[0087] After the composite printing in the present invention is completed, the printed thin surface moves to the rightmost end of the conveyor belt 432, where there is no negative pressure adsorption effect. At the same time, a peeling device can be provided at the right end of the conveyor belt 432. As the conveyor belt 432 moves, the material film will fall off the conveyor belt 432 and be automatically stacked and stored in the storage box below. The entire printing process will continue, and no manual intervention is required when there is sufficient material. What is more advantageous is that the bottom layer that consumes the most material is replaced with the existing material film, and the subsequent layers only require a small amount of FDM printing material to complete, which further improves the duration of automatic printing of the entire printing process. After printing is completed, the connection between the thin surface and the overall material film in the material film is cut off to obtain a complete thin surface. At the same time, the remaining material film can be recycled because it has not been contaminated during the entire process.

[0088] In addition, the present invention also provides a light and thin surface processing method, which uses the light and thin surface processing equipment mentioned above, and the method may include:

[0089] Providing a printing substrate 62 via the material supply device 20;

[0090] The printing substrate 62 provided by the material supply device 20 is moved to the printing device 40 along the moving direction by the synchronous conveying device 30;

[0091] The printing device 40 performs melt extrusion printing based on the printing base layer 62 to obtain a thin surface.

[0092] In the step of providing the printing base layer 62 through the material supply device 20, the material supply device 20 can provide the processed printing base layer 62, and can also provide the printing base layer 62 that needs to be processed.

[0093] In the step, the printing substrate 62 provided by the material supply device 20 is moved to the printing device 40 along the movement direction by the synchronous conveying device 30. The synchronous conveying device 30 can convey the printing substrate 62 provided by the material supply device 20 to the printing device for printing.

[0094] In the step of obtaining a thin surface by melt extrusion printing based on the printing base layer 62 by the printing device 40, the thin surface is formed by melt extrusion printing based on the printing base layer 62, so that the printing device does not need to perform traditional first layer printing, thereby improving the efficiency of printing the thin surface.

[0095] In one embodiment of the present invention, the step of providing the printing substrate 62 by the material supply device 20 further includes the following steps:

[0096] Providing a film 61 of material to be cut;

[0097] The material film 61 to be cut is laser cut by a laser cutting device to obtain a printing base layer 62 .

[0098] In one embodiment of the present invention, after the printing substrate 62 provided by the material supply device 20 is moved into the printing device 40 along the moving direction by the synchronous conveying device 30, the following steps are further included:

[0099] The printing substrate 62 is transferred to a preset position of the printing platform 411 of the printing device 40 through the second transfer unit 33; while being transferred by the second transfer unit 33, the first transfer unit 31 is driven to rotate by the synchronous transfer unit 32 to move a preset set distance.

[0100] In one embodiment of the present invention, the step of transferring the printing substrate 62 to a predetermined position of the printing platform 411 of the printing device 40 via the second transfer unit 33 includes the following steps:

[0101] The waste cleaning assembly 23 is used to remove the waste film 63 formed during the cutting process of the material film 61 to be cut by the laser cutting device.

[0102] In one embodiment of the present invention, the step of removing the waste film 63 formed during the cutting process of the material film 61 to be cut by the laser cutting device by the waste cleaning component 23 further includes the following steps:

[0103] The waste film 63 is cleaned by a cleaning nozzle 231 connected to an air compressor 232 .

[0104] In one embodiment of the present invention, the step of removing the waste film 63 formed during the cutting process of the material film 61 to be cut by the laser cutting device by the waste cleaning component 23 further includes the following steps:

[0105] The waste film 63 is removed by the cleaning blade 233 .

[0106] In one embodiment of the present invention, the step of performing melt extrusion printing on the printing base layer 62 by the printing device 40 to obtain a thin surface further includes the following steps:

[0107] After the printing substrate 62 conveyed by the second conveying unit 33 is moved to a preset position, the printing platform 411 adsorbs the printing substrate 62 onto the surface of the conveyor belt 331 under the action of the vacuum pump 413;

[0108] The printing substrate 62 is heated to a preset temperature by the current heater 422 in preparation for printing;

[0109] The heated film material based on the printing substrate 62 is printed one by one by using a plurality of FDM printers 421 to form a thin surface.

[0110] The specific implementation of the light and thin surface processing method provided by the present invention has been introduced in detail when introducing the light and thin surface processing equipment, and will not be repeated here.

[0111] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. Any appropriate changes and modifications to the above embodiments fall within the scope of the present invention as long as they are within the spirit of the present invention.

Claims

1. A thin surface processing device, comprising a rigid frame (10), characterized in that: The invention also includes a material supply device (20) provided on the rigid frame (10) for providing a printing base layer (62), a synchronous conveying device (30) provided on the rigid frame (10) for transmitting the printing base layer (62), and a printing device (40) provided on the rigid frame (10) for performing melt extrusion printing based on the printing base layer (62) provided by the material supply device (20); The material supply device (20) includes a laser cutting device, wherein the laser cutting device is used to cut the material film (61) to be cut into the printing base layer (62), and a connection point is reserved at the position where the outline edge of the printing base layer (62) is connected to the entire material film, and The laser cutting device comprises a laser cutting platform (21), a laser cutter (22) and a waste cleaning assembly (23), wherein the laser cutting platform (21) is fixed to the rigid frame (10), the laser cutter (22) is located above the laser cutting platform (21), and the waste cleaning assembly (23) is located between the laser cutting platform (21) and the printing device (40) to remove the waste film (63) formed during the process of the laser cutter (22) cutting the material film (61) to be cut.

2. The thin surface processing equipment according to claim 1, characterized in that: The waste cleaning assembly (23) comprises a cleaning nozzle (231) and an air compressor (232), wherein the cleaning nozzle (231) is located between the laser cutting platform (21) and the printing device (40), and the air compressor (232) is connected to the cleaning nozzle (231).

3. The thin surface processing equipment according to claim 1 or 2, characterized in that: The waste cleaning assembly (23) comprises two cleaning scrapers (233) spaced apart and located between the laser cutting platform (21) and the printing device (40), and the interval between the two cleaning scrapers (233) is adjustable.

4. The thin surface processing equipment according to claim 1, characterized in that: The material supply device (20) further comprises a material support device arranged on one side of the laser cutting device, wherein the material support device comprises a material support (24), and the material support (24) is used to support a material roller (60) wound with a material film (61) to be cut.

5. The thin surface processing equipment according to claim 4, characterized in that: The material support device further comprises a guide bracket (241), wherein the guide bracket (241) is arranged on both sides of the material bracket (24).

6. The thin surface processing equipment according to claim 1, characterized in that: The synchronous transmission device (30) includes a first transmission unit (31), a second transmission unit (33) and a synchronous transmission unit (32), wherein the second transmission unit (33) drives the first transmission unit (31) to rotate synchronously through the synchronous transmission unit (32), the first transmission unit (31) is arranged above the laser cutting platform (21), and the second transmission unit (33) is arranged below the printing device (40).

7. The thin surface processing equipment according to claim 6, characterized in that: The first conveying unit (31) includes two groups of first synchronous roller assemblies (311), the two groups of the first synchronous roller assemblies (311) are arranged on both sides of the laser cutting platform (21), and each group of the first synchronous roller assemblies (311) includes two first synchronous rollers (3111) arranged at intervals.

8. The thin surface processing equipment according to claim 7, characterized in that: The first conveying unit (31) further comprises two groups of guide assemblies (312) corresponding to the two groups of the first synchronous rollers (3111), and each group of the guide assemblies (312) is correspondingly arranged on the front side of the first synchronous roller (3111).

9. The thin surface processing equipment according to claim 8, characterized in that: The second conveying unit (33) comprises a conveyor belt assembly and multiple sets of second synchronous roller assemblies (332), wherein the conveyor belt assembly is arranged below the multiple sets of second synchronous roller assemblies (332), and the second synchronous roller assembly (332) is driven to rotate by the conveyor belt assembly.

10. The thin surface processing equipment according to claim 9, characterized in that: The conveyor belt assembly comprises a conveyor belt (331) and a driving motor (334), wherein the driving motor (334) drives the conveyor belt (331) and the synchronous conveying unit (32) to rotate synchronously, and the conveyor belt (331) is used to transport the printing substrate (62).

11. The thin surface processing equipment according to any one of claims 1 or 6, characterized in that: The printing device (40) comprises a printing platform unit (41) and a printing unit (42), wherein the printing platform unit (41) is arranged below the printing unit (42), and the printing substrate (62) is transmitted to a preset position of the printing platform unit (41) through a second transmission unit (33) so that the printing unit (42) can print on the basis of the printing substrate (62).

12. The thin surface processing equipment according to claim 10, characterized in that: The printing device (40) comprises a printing platform unit (41) and a printing unit (42), wherein the printing platform unit (41) is arranged below the printing unit (42), and the printing substrate (62) is transmitted to a preset position of the printing platform unit (41) through a second transmission unit (33) so that the printing unit (42) can print on the basis of the printing substrate (62).

13. The thin surface processing equipment according to claim 12, characterized in that: The printing platform unit (41) includes a printing platform (411), a plurality of ventilation grooves (412) arranged on the printing platform (411), a vacuum pump (413) connected to the ventilation grooves (412), and a pressure sensor (414) installed on the side of the printing platform (411). The printing platform unit (41) is placed below the conveyor belt (331), and the conveyor belt (331) has a plurality of air holes (333) corresponding to the ventilation grooves (412).

14. The thin surface processing equipment according to claim 12 or 13, characterized in that: The printing unit (42) includes a plurality of FDM printers (421) arranged at equal intervals and a plurality of heaters (422) corresponding to each of the FDM printers (421), wherein each heater (422) is arranged on the front side of the corresponding FDM printer (421).

15. The thin surface processing equipment according to claim 14, characterized in that: It also includes a control unit (50), wherein the control unit (50) is respectively connected to the printing device (40), the material supply device (20) and the synchronous transmission device (30).

16. A method for processing thin surfaces, using the thin surface processing equipment according to any one of claims 1 to 15, characterized in that: The method comprises: Providing a printing base layer (62) through a material supply device (20) includes: providing a material film (61) to be cut; and laser cutting the material film (61) to be cut by a laser cutting device to obtain a printing base layer (62), wherein a connection point not to be cut is reserved at a position where the outline edge of the printing base layer (62) is connected to the entire material film; The waste film (63) formed during the process of the laser cutter (22) cutting the material film (61) to be cut is removed by a waste cleaning component (23); The printing substrate (62) provided by the material supply device (20) is moved to the printing device (40) along a moving direction by a synchronous conveying device (30); By means of a printing device (40), melt extrusion printing is performed based on the printing base layer (62) to obtain a light and thin surface; and After printing is completed, cut off the connection between the thin surface and the whole material film.

17. The thin surface processing method according to claim 16, characterized in that: The method further comprises the steps of moving the printing substrate (62) provided by the material supply device (20) into the printing device (40) along the moving direction through the synchronous conveying device (30): The printing base layer (62) is transferred to a preset position of a printing platform (411) of a printing device (40) through a second transfer unit (33); while the second transfer unit (33) is transferring, the first transfer unit (31) is driven to rotate through a synchronous transfer unit (32) to move a preset set distance.

18. The thin surface processing method according to claim 17, characterized in that: In the step of transferring the printing substrate (62) to a preset position of a printing platform (411) of a printing device (40) through a second conveying unit (33), a cleaning step is performed.

19. The thin surface processing method according to claim 18, characterized in that: The step of removing the waste film (63) formed during the cutting process of the material film (61) to be cut by the laser cutting device by using the waste cleaning component (23) also includes the steps of: The waste film (63) is cleaned by a cleaning nozzle (231) connected to an air compressor (232).

20. The thin surface processing method according to claim 18 or 19, characterized in that: The step of removing the waste film (63) formed during the cutting process of the material film (61) to be cut by the laser cutting device by using the waste cleaning component (23) also includes the steps of: The waste film (63) is removed by a cleaning blade (233).

21. The thin surface processing method according to claim 20, characterized in that: The step of using the printing device (40) to perform melt extrusion printing based on the printing base layer (62) to obtain a light and thin surface also includes the steps of: After the printing substrate (62) conveyed by the second conveying unit (33) is moved to a preset position, the printing platform (411) adsorbs the printing substrate (62) onto the surface of the conveyor belt (331) under the action of the vacuum pump (413); heating the printing substrate (62) to a preset temperature by the current heater (422) in preparation for printing; The film materials based on the printing base layer (62) are heated and printed one by one by using multiple FDM printers (421) to form a thin surface.

Images