Curing following five-axis printing system and method

Abstract

The invention provides a curing following five-axis printing system and method.The curing following five-axis printing system comprises a printing mechanism arranged on the Z axis of five-axis printing equipment in a sliding mode, an adjusting mechanism and a curing following mechanism, and the adjusting mechanism is used for adjusting the relative position and angle of the curing following mechanism and the printing mechanism; the curing following mechanism comprises a light generator, and the light generator is used for emitting curing light to cure the light curing glue liquid flowing out of the printing mechanism to the surface of the substrate. According to the five-axis printing equipment, the printing mechanism, the adjusting mechanism and the curing following mechanism are integrated on the Z axis of the five-axis printing equipment, the relative position and angle of the curing following mechanism and the printing mechanism are adjusted through the adjusting mechanism, and the perpendicularity and straightness problems of five-axis printing are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of five-axis printing, and in particular to a curing-following five-axis printing system and method. Background Art

[0002] Five-axis printing is an innovative technology in the field of additive manufacturing. It adds two additional rotation axes so that the print head can print on multiple planes, not just one. This design enables the five-axis printer to manufacture parts with complex geometries without support, greatly improving the flexibility of printing and the strength of the parts. The core of five-axis printing is that it adds two rotation axes (usually A and B axes), so it can print more complex and detailed models.

[0003] In order to produce glue patterns on spatial curved surfaces, five-axis printing equipment is usually used instead of three-axis printing equipment for dispensing. However, in the actual dispensing process, UV lamps are usually required for follow-up curing. Since the five-axis printing equipment has high requirements for the verticality and straightness of the five axes when dispensing glue on spatial curved surfaces, especially the printing axis, the irradiation direction of the UV lamp cannot be flexibly adjusted to follow the changes of the five axes, resulting in high difficulty in follow-up curing.

[0004] The Chinese patent document discloses "a follow-up UV high-efficiency curing device", and its authorization announcement number is CN212681594U. The UV high-efficiency curing device includes a conveyor frame, a UV curing lamp, a controller, a sensor and a transverse driving device. The conveyor frame is provided with a conveyor belt, a carrier is provided on the conveyor belt, and a bracket across the conveyor belt is provided on the conveyor frame. The transverse driving device is horizontally arranged on the bracket, and the sensor is arranged on the bracket to monitor the movement of the carrier. The controller is connected to the transverse driving device for movement control. A sliding seat is arranged at the bottom of the transverse driving device, and the UV curing lamp is arranged at the bottom of the sliding seat and points downward. The structure of this patent can ensure that the UV curing lamp keeps moving synchronously with the carrier, but when it is used in a five-axis printing device to dispense glue on a spatial curved surface, it still cannot flexibly adjust to follow the changes of the five axes, resulting in a high difficulty in follow-up curing. Summary of the invention

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a curing follow-up five-axis printing system and method, which is used to solve the problem that when the existing five-axis printing equipment is dispensing glue on the spatial surface, the UV curing lamp cannot be flexibly adjusted to follow the changes of the five axes, resulting in a high difficulty in follow-up curing.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides a curing-following five-axis printing system, comprising a printing mechanism, an adjustment mechanism and a curing-following mechanism arranged on the Z-axis of a five-axis printing device, wherein the adjustment mechanism is used to adjust the relative position and angle between the curing-following mechanism and the printing mechanism, and the curing-following mechanism comprises a light generator, which is used to emit curing light to cure the light-curing glue flowing out from the printing mechanism to the surface of the substrate.

[0007] In the above-mentioned technical solution of the present application, the printing mechanism, the adjustment mechanism and the curing following mechanism are integrated into the Z-axis of the five-axis printing device, and the adjustment mechanism is used to adjust the relative position and angle of the curing following mechanism and the printing mechanism, thereby solving the verticality and straightness problems of the five-axis printing. At the same time, it also solves the problem that when the existing five-axis printing device is dispensing glue on the spatial surface, the UV curing lamp cannot be flexibly adjusted to follow the changes of the five axes, resulting in a high difficulty in following the curing.

[0008] Preferably, the curing-following five-axis printing system further comprises an observation mechanism, and the observation mechanism is used for real-time monitoring of the printing status of the printing mechanism to improve the printing accuracy.

[0009] Preferably, the observation mechanism comprises a 2D camera assembly and a 3D camera assembly, and the angles of the 2D camera assembly and the 3D camera assembly along the X-axis, the Y-axis and the Z-axis are adjustable.

[0010] Preferably, the 2D camera assembly includes an angle adjustment table, a rotating table, a 2D camera and a light source. The angle adjustment table is fixedly connected to the rotating table. The 2D camera is arranged on the rotating table. The rotating table is used to adjust the angle of the 2D camera along the X-axis and Y-axis directions; the light source can be adjusted along the Z-axis direction.

[0011] Preferably, the 3D camera assembly includes a base, an X-axis angle adjustment table, a Y-axis angle adjustment table, a Z-axis rotation table and a 3D camera, the X-axis angle adjustment table, the Y-axis angle adjustment table and the Z-axis rotation table are fixedly connected to the base, the 3D camera is fixed on the Z-axis rotation table, and the base can be adjusted along the Z-axis direction.

[0012] Preferably, the printing mechanism comprises a feeding barrel and a printing needle, and the light generator is sleeved outside the printing needle, and can emit curing light in real time following the printing mechanism to cure the light-curing glue flowing out of the printing mechanism to the surface of the substrate.

[0013] More preferably, the feed barrel is provided with a liquid level sensor to monitor the state of the feed liquid in the feed barrel in real time and replenish the material in time to ensure smooth production.

[0014] More preferably, a shading plate is provided in the light generator, and the shading plate is used to absorb UV light scattered by the UV lamp to prevent the light-curing glue in the needle from being solidified and causing needle blockage.

[0015] Preferably, the adjustment mechanism includes a lifting assembly and a flip assembly, the lifting assembly is used to drive the light generator to move along the Z axis relative to the print needle, and the flip assembly is used to drive the light generator to flip around the print needle to adjust the relative angle between the light generator and the print needle.

[0016] Preferably, the lifting assembly comprises a lifting electric cylinder, a slide rail and a slider, the light generator is fixedly connected to the slider, and the lifting electric cylinder is used to drive the slider to drive the light generator to move along the slide rail.

[0017] Preferably, the lifting assembly further comprises a lifting limit block, and the lifting limit block is used to limit the travel of the light generator along the slide rail.

[0018] Preferably, the flip assembly comprises a flip electric cylinder and a flip axis perpendicular to the printing needle head, and the flip electric cylinder is used to drive the light generator to flip around the flip axis.

[0019] Preferably, the flip assembly further comprises a flip limit block, and the flip limit block is used to limit the relative angle between the light generator and the printing needle.

[0020] The present application also provides a curing-following five-axis printing method, based on the above-mentioned curing-following five-axis printing system, comprising the following steps: The adjusting mechanism is used to adjust the relative position and angle between the curing follower mechanism and the printing mechanism; A printing mechanism is used to print a light-curing adhesive on the surface of the substrate; A light generator is used to emit curing light to cure the light-curing glue that flows out from the printing mechanism to the surface of the substrate.

[0021] Preferably, the curing-following five-axis printing system further comprises an observation mechanism, and the curing-following five-axis printing method further comprises: using the observation mechanism to monitor the printing state of the printing mechanism in real time.

[0022] Preferably, the adjustment mechanism includes a lifting component and a flipping component, the printing mechanism includes a feeding barrel and a printing needle, and the light generator is sleeved on the outside of the printing needle; the use of the adjustment mechanism to adjust the relative position and angle between the curing follower mechanism and the printing mechanism includes: using the lifting component to drive the light generator to move along the Z axis relative to the printing needle, and using the flipping component to drive the light generator to flip around the printing needle.

[0023] Preferably, the lifting component includes a lifting electric cylinder slide rail, a slider and a lifting limit block, and the light generator is fixedly connected to the slider; the use of the lifting component to drive the light generator to move along the Z axis relative to the printing needle head includes: using the lifting electric cylinder to drive the slider to drive the light generator to move along the slide rail; using the lifting limit block to limit the travel of the light generator along the slide rail.

[0024] Preferably, the flip assembly includes a flip electric cylinder, a flip axis perpendicular to the print needle and a flip limit block; the use of the flip assembly to drive the light generator to flip around the print needle includes: using the flip electric cylinder to drive the light generator to flip around the flip axis, and using the flip limit block to limit the relative angle between the light generator and the print needle.

[0025] As described above, the curing-following five-axis printing system and method of the present invention have the following beneficial effects: (1) By integrating the printing mechanism, the adjustment mechanism and the curing follower mechanism into the Z-axis of the five-axis printing device, and using the adjustment mechanism to adjust the relative position and angle between the curing follower mechanism and the printing mechanism, the verticality and straightness problems of the five-axis printing are solved. In addition, the problem that the UV curing lamp cannot flexibly adjust to follow the changes of the five axes when the existing five-axis printing device dispenses glue on the spatial curved surface is solved, resulting in a high difficulty in follow-up curing. (2) A lifting assembly is used to drive the light generator to move along the Z axis relative to the printing needle, and a flip assembly is used to drive the light generator to flip around the printing needle to adjust the relative angle between the light generator and the printing needle, so that the UV curing lamp can be flexibly adjusted following the changes of the five axes, thereby reducing the difficulty of follow-up curing; (3) A lifting limit block is used to limit the travel of the light generator along the slide rail, and a flip limit block is used to limit the relative angle between the light generator and the printing needle, so that the adjustment mechanism can adjust the relative position and angle of the curing follower mechanism and the printing mechanism to a controllable degree, thereby improving the accuracy of light curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Shown is a schematic diagram of the structure of a curing-following five-axis printing system.

[0027] Figure 2 Shown is a schematic diagram of the structure of a 2D camera component.

[0028] Figure 3 Shown is a schematic diagram of the structure of the 3D camera assembly.

[0029] Figure 4 Shown is a schematic diagram of the structure of the light generator in the initial state.

[0030] Figure 5 The diagram shows the structure of the light generator in a flipped state.

[0031] Figure 6 Display as Figure 4 Schematic diagram of the three-dimensional structure.

[0032] Description of the accompanying drawings: light generator 1, light generator mounting bracket 11, shading plate 12, 2D camera assembly 2, angle adjustment table 21, angle adjustment table mounting plate 211, rotating table 22, 2D camera 23, light source 24, light source mounting plate 241, 3D camera assembly 3, base 31, X-axis direction angle adjustment table 32, Y-axis direction angle adjustment table 33, Z-axis direction rotating table 34, 3D camera 35, feeding barrel 4, printing needle 41, liquid level sensor 42, lifting electric cylinder 51, slider 52, lifting limit block 53, flip electric cylinder 61, flip axis 62, flip limit block 63, servo module 7, bottom plate 71, adapter 711. DETAILED DESCRIPTION

[0033] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] Unless otherwise clearly specified and limited, the terms "connection", "fixation" and "setting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] like Figure 1As shown, the embodiment of the present application provides a curing follow-up five-axis printing system, including a servo module 7 arranged on the Z axis of the five-axis printing device, a bottom plate 71 arranged on the slider of the servo module, and a printing mechanism, an adjustment mechanism, a curing follow-up mechanism and an observation mechanism slidably arranged on the bottom plate, and the printing mechanism, the adjustment mechanism, the curing follow-up mechanism and the observation mechanism can all be adjusted up and down relative to the bottom plate. The observation mechanism is used to monitor the printing state of the printing mechanism in real time, and the adjustment mechanism is used to adjust the relative position and angle of the curing follow-up mechanism and the printing mechanism.

[0037] like Figure 6 As shown, the printing mechanism includes a feed barrel 4 and a printing needle 41, the light generator is sleeved outside the printing needle, and the feed barrel is provided with a liquid level sensor 42. The curing follower mechanism includes a light generator 1, the light generator adopts an annular UV lamp, and the annular UV lamp is cooled by air cooling, which reduces the volume of the annular UV lamp. A light shielding plate 12 is provided inside the light generator, and the light generator is used to emit curing light to cure the light-curing glue flowing out of the printing mechanism to the surface of the substrate.

[0038] like Figure 1 As shown, the observation mechanism includes a 2D camera assembly 2 and a 3D camera assembly 3, and the angles of the 2D camera assembly and the 3D camera assembly along the X-axis, the Y-axis and the Z-axis are adjustable.

[0039] The bottom plate is provided with an angle adjustment table mounting plate 211, and the angle adjustment table mounting plate is provided with a waist hole, through which the angle adjustment table mounting plate is adjusted relative to the bottom plate along the Z direction. Figure 2 As shown, the 2D camera assembly includes an angle adjustment table 21, a rotating table 22, a 2D camera 23 and a light source 24, which are arranged on an angle adjustment table mounting plate 211. The angle adjustment table is fixedly connected to the rotating table. The 2D camera is arranged on the rotating table. The rotating table is used to adjust the angle of the 2D camera along the X-axis and Y-axis directions. A light source mounting plate 241 with a waist hole is provided on the angle adjustment table mounting plate. The light source is arranged on the light source mounting plate. The light source is adjusted along the Z-axis direction through the waist hole of the light source mounting plate.

[0040] like Figure 3 As shown, the 3D camera assembly includes a base 31 with a waist hole, an X-axis direction angle adjustment table 32, a Y-axis direction angle adjustment table 33, a Z-axis direction rotation table 34 and a 3D camera 35. The base is fixed on the bottom plate 71, and the adjustment along the Z-axis direction is achieved through the waist hole. The X-axis direction angle adjustment table, the Y-axis direction angle adjustment table and the Z-axis direction rotation table are fixedly connected to the base, and the 3D camera is fixed on the Z-axis direction rotation table.

[0041] The bottom plate 71 is provided with an adapter seat 711 having a waist hole. Figure 4 and Figure 6 As shown, the adapter 711 is adjusted along the Z axis through the waist hole; the feed barrel 4 and the print needle 41 are fixedly mounted on the adapter 711. The adjustment mechanism includes a lifting assembly and a flip assembly. The lifting assembly is used to drive the light generator to move along the Z axis relative to the print needle, and the flip assembly is used to drive the light generator to flip around the print needle to adjust the relative angle between the light generator and the print needle. The lifting assembly includes a lifting cylinder 51, a slide rail, a slider 52 and a lifting limit block 53. The light generator is fixedly connected to the slider through the light generator mounting bracket 11. The lifting cylinder is used to drive the slider to drive the light generator to move along the slide rail, and the lifting limit block is used to limit the travel of the light generator along the slide rail. The flip assembly includes a flip cylinder 61, a flip axis 62 provided on the light generator mounting bracket and perpendicular to the print needle, and a flip limit block 63. The flip cylinder is used to drive the light generator to flip around the flip axis, and the flip limit block is used to limit the relative angle between the light generator and the print needle.

[0042] Application Examples Gluing the curved screen frame of a mobile phone can significantly improve the overall structural strength of the phone, making it more drop-resistant and durable. Secondly, due to the design characteristics of curved screen phones, gaps are easily generated between the screen and the middle frame. Gluing can effectively seal these gaps and prevent dust, moisture and other external impurities from invading, thereby extending the life of the phone and maintaining a good appearance. Furthermore, glue dispensing technology can also enhance the waterproof performance of the phone and provide additional protection for the phone. However, the glue type of the mobile phone middle frame glue is a spatial curved surface, and the traditional three-axis printing equipment cannot accurately print the spatial curved surface.

[0043] The embodiment of the present application also provides a curing-following five-axis printing method for dispensing glue on a curved screen frame of a mobile phone based on the above-mentioned curing-following five-axis printing system, comprising the following steps: The relative position and angle between the curing follower mechanism and the printing mechanism are adjusted by an adjustment mechanism: The lifting assembly is used to drive the light generator to move along the Z axis relative to the printing needle, and the flip assembly is used to drive the light generator to flip around the printing needle; the lifting electric cylinder is used to drive the slider to drive the light generator to move along the slide rail, and the lifting limit block is used to limit the travel of the light generator along the slide rail; the flip electric cylinder is used to drive the light generator to flip around the flip axis, and the flip limit block is used to limit the relative angle between the light generator and the printing needle. The structural schematic diagram of the light generator in the initial state is shown in FIG. Figure 4 As shown, the schematic diagram of the structure of the light generator in the flip state is as follows Figure 5 As shown; A printing mechanism is used to print a light-curing adhesive on the surface of the curved screen frame of the mobile phone, and an observation mechanism is used to monitor the printing status of the printing mechanism in real time; A light generator is used to emit curing light to cure the light-curing glue flowing out from the printing mechanism to the surface of the curved screen frame of the mobile phone, thereby realizing follow-up curing and dispensing glue on the surface of the curved screen frame of the mobile phone.

[0044] In summary, the present invention integrates the printing mechanism, the adjustment mechanism and the curing follower mechanism into the Z axis of the five-axis printing device, and uses the adjustment mechanism to adjust the relative position and angle of the curing follower mechanism and the printing mechanism, thereby solving the verticality and straightness problems of the five-axis printing, and also solving the problem that when the existing five-axis printing device dispenses glue on the spatial curved surface, the UV curing lamp cannot flexibly adjust to follow the changes of the five axes, resulting in a high difficulty in following the curing; the lifting component is used to drive the light generator to move along the Z axis relative to the printing needle, and the flip component is used to drive the light generator to flip around the printing needle to adjust the relative angle between the light generator and the printing needle, so that the UV curing lamp can flexibly adjust to follow the changes of the five axes, reducing the difficulty of following the curing; the lifting limit block is used to limit the stroke of the light generator along the slide rail, and the flip limit block is used to limit the relative angle between the light generator and the printing needle, so that the adjustment mechanism can adjust the relative position and angle of the curing follower mechanism and the printing mechanism to a controllable degree, thereby improving the accuracy of light curing. Therefore, the present invention effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0045] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A curing follow-up five-axis printing system, characterized in that: The invention comprises a printing mechanism, an adjustment mechanism and a curing follower mechanism which are slidably arranged on the Z axis of a five-axis printing device, wherein the adjustment mechanism is used to adjust the relative position and angle between the curing follower mechanism and the printing mechanism, and the curing follower mechanism comprises a light generator (1) which is used to emit curing light to cure a light-curing adhesive liquid which flows out from the printing mechanism to the surface of a substrate.

2. The curing-following five-axis printing system according to claim 1, characterized in that: The curing-following five-axis printing system further includes an observation mechanism, which is used to monitor the printing state of the printing mechanism in real time.

3. The curing-following five-axis printing system according to claim 2, characterized in that: The observation mechanism comprises a 2D camera assembly (2) and a 3D camera assembly (3), and the angles of the 2D camera assembly and the 3D camera assembly along the X-axis, the Y-axis and the Z-axis are adjustable.

4. The curing-following five-axis printing system according to claim 3, characterized in that: The 2D camera assembly comprises an angle adjustment table (21), a rotating table (22), a 2D camera (23) and a light source (24); the angle adjustment table is fixedly connected to the rotating table; the 2D camera is arranged on the rotating table; the rotating table is used to adjust the angle of the 2D camera along the X-axis direction and the Y-axis direction; the light source can be adjusted along the Z-axis direction; the 3D camera assembly comprises a base (31), an X-axis direction angle adjustment table (32), a Y-axis direction angle adjustment table (33), a Z-axis direction rotating table (34) and a 3D camera (35); the X-axis direction angle adjustment table, the Y-axis direction angle adjustment table and the Z-axis direction rotating table are fixedly connected to the base; the 3D camera is fixed on the Z-axis direction rotating table; and the base can be adjusted along the Z-axis direction.

5. The curing-following five-axis printing system according to claim 1, characterized in that: The printing mechanism comprises a feeding barrel (4) and a printing needle (41), the light generator is sleeved on the outside of the printing needle, the feeding barrel is provided with a liquid level sensor (42), and the light generator is provided with a light shielding plate (12).

6. The curing-following five-axis printing system according to claim 5, characterized in that: The adjustment mechanism includes a lifting component and a flip component, wherein the lifting component is used to drive the light generator to move along the Z axis relative to the printing needle, and the flip component is used to drive the light generator to flip around the printing needle to adjust the relative angle between the light generator and the printing needle.

7. The curing-following five-axis printing system according to claim 6, characterized in that: The lifting assembly comprises a lifting electric cylinder (51), a slide rail and a slider (52); the light generator is fixedly connected to the slider; the lifting electric cylinder is used to drive the slider to drive the light generator to move along the slide rail; the lifting assembly also comprises a lifting limit block (53); the lifting limit block is used to limit the travel of the light generator along the slide rail.

8. The curing-following five-axis printing system according to claim 6, characterized in that: The flip assembly comprises a flip electric cylinder (61) and a flip axis (62) perpendicular to the printing needle, the flip electric cylinder being used to drive the light generator to flip around the flip axis; the flip assembly further comprises a flip limit block (63), the flip limit block being used to limit the relative angle between the light generator and the printing needle.

9. A curing-following five-axis printing method, characterized in that: The curing-following five-axis printing system according to any one of claims 1 to 8 comprises the following steps: The adjusting mechanism is used to adjust the relative position and angle between the curing follower mechanism and the printing mechanism; A printing mechanism is used to print a light-curing adhesive on the surface of the substrate; A light generator is used to emit curing light to cure the light-curing glue that flows out from the printing mechanism to the surface of the substrate.

10. The curing-following five-axis printing method according to claim 9, characterized in that: The curing-following five-axis printing system further includes an observation mechanism, and the curing-following five-axis printing method further includes: An observation mechanism is used to monitor the printing status of the printing mechanism in real time.

11. The curing-following five-axis printing method according to claim 9, characterized in that: The adjustment mechanism includes a lifting assembly and a flip assembly, the printing mechanism includes a feeding barrel and a printing needle, and the light generator is sleeved outside the printing needle; The use of the adjustment mechanism to adjust the relative position and angle between the curing follower mechanism and the printing mechanism includes: using a lifting component to drive the light generator to move along the Z axis relative to the printing needle, and using a flipping component to drive the light generator to flip around the printing needle.

12. The curing-following five-axis printing method according to claim 11, characterized in that: The lifting assembly includes a lifting electric cylinder, a slide rail, a slider and a lifting limit block, and the light generator is fixedly connected to the slider; the flip assembly includes a flip electric cylinder, a flip axis perpendicular to the printing needle head and a flip limit block; The method of using a lifting assembly to drive the light generator to move along the Z axis relative to the printing needle head includes: The lifting electric cylinder is used to drive the slider to drive the light generator to move along the slide rail; A lifting limit block is used to limit the travel of the light generator along the slide rail; The method of using a flipping assembly to drive the light generator to flip around the printing needle head includes: A flip electric cylinder is used to drive the light generator to flip around a flip axis, and a flip limit block is used to limit the relative angle between the light generator and the printing needle.

Images