Worm and gear lifting device and product three-dimensional surface printing equipment
By designing a worm gear lifting device, the problem of asynchronous lifting when the 3D product printing equipment is bearing a large span load is solved, achieving a highly stable and high-precision 3D surface printing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TUCHUANG INTELLIGENT MFG CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-08
AI Technical Summary
The lifting structure of existing 3D product printing equipment is unstable, especially when bearing large-span loads, the lifting on both sides is not synchronized, resulting in insufficient load-bearing capacity and low accuracy.
A worm gear lifting device is adopted, which drives the first worm gear and the second worm gear to rotate synchronously through the drive mechanism, thereby driving the first worm and the second worm to move up and down synchronously. The lifting components on both sides are connected by the worm gear shaft to form a load-bearing structure that spans the printing platform, and the movement accuracy is improved by the guide mechanism.
The stability and precision of the lifting device have been significantly improved. It has a strong load-bearing capacity, uniform structural stress and small deformation, which ensures the stability and precision of the printing equipment in printing on three-dimensional surfaces.
Smart Images
Figure CN224210787U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of inkjet printing technology, specifically a worm gear lifting device and a three-dimensional surface printing equipment for products. Background Technology
[0002] Inkjet printing technology refers to the technology of spraying ink droplets onto a printing medium through nozzles on a printhead to obtain images or text. Currently, printing media are generally two-dimensional planes, but with the development of technology and demand, three-dimensional product surfaces can also be printed, such as mobile phone cases and back covers.
[0003] To accommodate products of varying heights when printing on 3D product surfaces, printing devices typically feature an overall lifting function. However, current lifting structures are not stable enough, have low precision, and insufficient load-bearing capacity, easily leading to asynchronous lifting on both sides when bearing large-span loads. Utility Model Content
[0004] In view of this, the present invention provides a worm gear lifting device and an inkjet printing device to solve the technical problem of unstable lifting structure in existing three-dimensional product printing equipment and asynchronous lifting on both sides when bearing large span loads.
[0005] In a first aspect, this utility model provides a worm gear lifting device, comprising:
[0006] Drive mechanism;
[0007] The first lifting assembly includes a first worm gear, a first worm, and a first support member. The output end of the drive mechanism is connected to the first worm gear. The first worm gear cooperates with the first worm, and the first support member is connected to one end of the first worm.
[0008] The second lifting assembly includes a second worm gear, a second worm, and a second support member. The second worm gear cooperates with the second worm, and the second support member is connected to one end of the second worm.
[0009] The worm gear shaft has one end connected to the first worm gear and the other end connected to the second worm gear. The second worm gear rotates synchronously with the first worm gear under the drive of the worm gear shaft.
[0010] The first lifting assembly and the second lifting assembly are located on both sides of the printing platform of the printing device, and the axial directions of the first worm and the second worm are parallel to each other.
[0011] Preferably, the first lifting assembly further includes a first guide mechanism and a second guide mechanism, the first guide mechanism and the second guide mechanism are guided in the vertical direction, and the first guide mechanism and the second guide mechanism are located on opposite sides of the first worm gear in the horizontal direction;
[0012] The second lifting assembly also includes a third guide mechanism and a fourth guide mechanism, the third guide mechanism and the fourth guide mechanism being guided in a vertical direction, and the third guide mechanism and the fourth guide mechanism being located on opposite sides of the second worm gear in a horizontal direction.
[0013] Preferably, the first, second, third, and fourth guiding mechanisms each include a guide block and a guide post. The guide block is provided with a guide hole, and the guide post passes through the guide hole. The axial direction of the guide hole is vertical.
[0014] Preferably, the assembly also includes a first base plate and a second base plate. One end of the guide column of the first lifting assembly is connected to the first support member, and the other end is connected to the first base plate. One end of the guide column of the second lifting assembly is connected to the second support member, and the other end is connected to the second base plate.
[0015] Preferably, the worm gear shaft is located on the side of the printing platform facing away from the printing module.
[0016] Preferably, it further includes a limiting device, which includes a boss and a triggering device. The boss moves synchronously with the first worm and / or the second worm. The triggering device maintains a fixed position relative to the printing platform. The end of the boss facing the triggering device is provided with an inclined surface. The distance between the upper end of the inclined surface and the triggering device in the horizontal direction is greater than the distance between the lower end of the inclined surface and the triggering device in the horizontal direction.
[0017] Preferably, the driving mechanism includes a driver, a first pulley, a second pulley, and a transmission belt. The output end of the driver is connected to the input end of the first pulley, and at least a portion of the transmission belt is wound around the first pulley and at least a portion is wound around the second pulley.
[0018] Preferably, it further includes a first housing and a second housing, wherein the portion of the first worm gear and the first worm that mate is located in the sealed first housing and / or the portion of the second worm gear and the second worm that mate is located in the sealed second housing.
[0019] Preferably, the first worm gear, the second worm gear, and the worm gear shaft are an integrated structure, or the first worm gear and the second worm gear are respectively connected to the worm gear shaft via couplings.
[0020] Secondly, this utility model provides a three-dimensional surface printing device for products, including the worm gear lifting device described in the first aspect.
[0021] Beneficial Effects: The worm gear lifting device and 3D surface printing equipment of this utility model separately arrange the first lifting component and the second lifting component on both sides of the printing platform of the printing equipment, and connect them with a worm gear shaft, thereby forming a load-bearing structure spanning the printing platform below. This structure corresponds to the crossbeam spanning the printing platform, and can simultaneously support the translation mechanism on both sides of the printing platform, thereby improving the load-bearing capacity of the translation mechanism. Under the drive of the drive mechanism, the first worm gear rotates, driving the first worm to move up and down synchronously. At the same time, the first worm gear drives the second worm gear to rotate synchronously through the worm gear shaft, and the second worm gear drives the second worm to move up and down synchronously, so that the up and down movement of the first worm and the up and down movement of the second worm are synchronized. With the aforementioned structure, the worm gear lifting device of this embodiment can not only support the translation mechanism across the printing platform, but also drive the translation mechanism to move up and down simultaneously on both sides of the printing platform. The method of driving from both sides simultaneously not only has a strong load-bearing capacity, but also results in uniform stress and small deformation of the structure, thus significantly improving the stability and accuracy of the lifting device. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.
[0023] Figure 1 This is a three-dimensional structural schematic diagram of the worm gear lifting device of this utility model;
[0024] Figure 2 This is a three-dimensional structural diagram of the drive mechanism and guide mechanism of the worm gear lifting device of this utility model;
[0025] Figure 3 This is a schematic diagram of the limiting device of this utility model;
[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the product three-dimensional surface printing equipment of this utility model.
[0027] The components and their numbers shown in the picture:
[0028] Drive mechanism 1, driver 11, first pulley 12, second pulley 13, transmission belt 14, first lifting assembly 2, first worm gear 21, first worm 22, first support member 23, first guide mechanism 24, second guide mechanism 25, first base plate 26, first housing 27, second lifting assembly 3, second worm gear 31, second worm 32, second support member 33, third guide mechanism 34, fourth guide mechanism 35, second base plate 36, second housing 37, worm gear shaft 4, guide block 51, guide column 52, boss 61, trigger device 62, inclined surface 611, printing platform 7, translation mechanism 8, printing module 9. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.
[0030] Example 1
[0031] like Figure 1 As shown, this embodiment provides a worm gear lifting device, which mainly includes: a drive mechanism 1, a first lifting component 2, a second lifting component 3, and a worm gear shaft 4.
[0032] The drive mechanism 1 is used to drive the first worm gear 21 in the first lifting assembly 2 to rotate.
[0033] The first lifting component 2 includes a first worm gear 21, a first worm 22 and a first support member 23. The output end of the drive mechanism 1 is connected to the first worm gear 21. The first worm gear 21 cooperates with the first worm 22. The first support member 23 is connected to one end of the first worm 22.
[0034] The engagement of the first worm gear 21 and the first worm 22 means that the first worm gear 21 meshes with the first worm 22, and when the first worm gear 21 rotates, the first worm 22 rotates synchronously with the first worm gear 21 under its drive. Figure 4 As shown, the first support member 23 is connected to the load above it, namely the translation mechanism 8 of the printing device, thereby providing support for the translation mechanism 8. The translation mechanism 8 is used to move the printing module 9 horizontally (in both the x and y directions). The lifting device in this embodiment can drive the translation mechanism 8 to move up and down, thereby realizing the three-dimensional movement of the printing carriage.
[0035] In this embodiment, the second lifting component 3 includes a second worm gear 31, a second worm 32, and a second support member 33. The second worm gear 31 cooperates with the second worm 32, and the second support member 33 is connected to one end of the second worm 32.
[0036] The second worm gear 31 and the second worm 32 are engaged, meaning that when the second worm gear 31 rotates, the second worm 32 rotates synchronously with it under its drive. The second support member 33 is connected to the load above it, namely the translation mechanism 8 of the printing device, providing support for the translation mechanism 8. The translation mechanism 8 is used to move the printing module 9 horizontally.
[0037] One end of the worm gear shaft 4 is connected to the first worm gear 21, and the other end is connected to the second worm gear 31. The second worm gear 31 rotates synchronously with the first worm gear 21 under the drive of the worm gear shaft 4.
[0038] The first lifting assembly 2 and the second lifting assembly 3 are located on both sides of the printing platform 7 of the printing equipment, and the axial directions of the first worm gear 22 and the second worm gear 32 are parallel to each other.
[0039] Since the crossbeam in the translation mechanism 8 of the printing equipment spans above the printing platform 7, and the translation mechanism 8 needs to drive the printing carriage to move horizontally, it is a large-span load. In this embodiment, the first lifting assembly 2 and the second lifting assembly 3 are respectively arranged on both sides of the printing platform 7 of the printing equipment, and connected by a worm gear shaft 4, thus forming a load-bearing structure spanning the printing platform 7 below it. This structure corresponds to the crossbeam spanning the translation mechanism 8, and can simultaneously support the translation mechanism 8 on both sides of the printing platform 7 and drive the translation mechanism 8 to move up and down, thereby improving the load-bearing capacity of the translation mechanism 8. Under the drive of the drive mechanism 1, the first worm gear 21 rotates, driving the first worm 22 to move up and down synchronously. Simultaneously, the first worm gear 21 drives the second worm gear 31 to rotate synchronously through the worm gear shaft 4, and the second worm gear 31 drives the second worm 32 to move up and down synchronously, ensuring that the up and down movement of the first worm 22 and the second worm 32 are synchronized. With the aforementioned structure, the worm gear lifting device of this embodiment can not only support the translation mechanism 8 across the printing platform 7, but also drive the translation mechanism 8 to move up and down simultaneously from both sides of the printing platform 7. The simultaneous drive from both sides not only provides strong load-bearing capacity but also ensures uniform stress and minimal deformation of the structure, thus significantly improving the stability and accuracy of the device.
[0040] In this embodiment, the first lifting assembly 2 further includes a first guide mechanism 24 and a second guide mechanism 25. The guide direction of the first guide mechanism 24 and the second guide mechanism 25 is vertical. The first guide mechanism 24 and the second guide mechanism 25 are located on opposite sides of the first worm gear 22 in the horizontal direction.
[0041] The first guide mechanism 24 and the second guide mechanism 25 can constrain the up-and-down movement of the worm, ensuring that the worm moves strictly along the vertical direction, thereby improving the accuracy of the worm's movement. The first guide mechanism 24 and the second guide mechanism 25 are arranged on both sides of the first worm 22, providing vertical constraints simultaneously from both sides, further improving the guiding accuracy.
[0042] The second lifting assembly 3 also includes a third guide mechanism 34 and a fourth guide mechanism 35. The guide direction of the third guide mechanism 34 and the fourth guide mechanism 35 is vertical. The third guide mechanism 34 and the fourth guide mechanism 35 are located on opposite sides of the second worm gear 31 in the horizontal direction.
[0043] The third guide mechanism 34 and the fourth guide mechanism 35 can constrain the up-and-down movement of the worm, ensuring that the worm moves strictly along the vertical direction, thereby improving the accuracy of the worm's movement. The third guide mechanism 34 and the fourth guide mechanism 35 are arranged on both sides of the second worm 32, providing vertical constraints simultaneously from both sides, further improving the guiding accuracy.
[0044] like Figure 2 As shown, in this embodiment, the first guide mechanism 24, the second guide mechanism 25, the third guide mechanism 34 and the fourth guide mechanism 35 include a guide block 51 and a guide post 52. The guide block 51 is provided with a guide hole, and the guide post 52 passes through the guide hole. The axial direction of the guide hole is vertical.
[0045] In practical implementation, guide blocks 51 can be installed on the frame of the printing equipment, and then guide posts 52 can pass through guide holes. Guide posts 52 move along the axis of the guide holes under the constraint of the guide holes. Two guide blocks 51 can be set for each guide post 52, thus constraining the guide post 52 at two positions to improve the accuracy of lifting. Each guiding mechanism can have one guide post 52, so that the four guide posts 52 can be located on the four edges of the same cuboid, thus providing more stable support for the load.
[0046] like Figure 1 As shown, the worm gear lifting device of this embodiment also includes a first base plate 26 and a second base plate 36. One end of the guide column 52 of the first lifting component 2 is connected to the first support member 23, and the other end is connected to the first base plate 26. One end of the guide column 52 of the second lifting component 3 is connected to the second support member 33, and the other end is connected to the second base plate 36.
[0047] In this embodiment, two base plates and two support plates are connected at the upper and lower ends of the guide column 52 and the worm gear, respectively, so that the guide column 52 and the worm gear are connected together. In this way, the worm gear can move synchronously with the guide columns 52 at both ends, thereby improving the stability of the lifting assembly during lifting.
[0048] In this embodiment, the worm gear shaft 4 is located on the side of the printing platform 7 facing away from the print head. This allows for the transmission of the lifting devices on both sides of the printing platform 7 across the printing platform 7, saves space, and does not affect the inkjet printing of the printing carriage above the printing platform 7.
[0049] like Figure 2As shown, in this embodiment, the drive mechanism 1 includes a driver 11, a first pulley 12, a second pulley 13, and a transmission belt 14. The output end of the driver 11 is connected to the input end of the first pulley 12. At least a portion of the transmission belt 14 is wound around the first pulley 12, and at least a portion is wound around the second pulley 13.
[0050] The driver 11 includes, but is not limited to, an electric motor, a pneumatic motor, and a hydraulic motor. When the lifting device is in operation, the driver 11 drives the first pulley 12 to rotate, the first pulley 12 drives the second pulley 13 to rotate via a synchronous belt, and the second pulley 13 drives the first worm gear 21 to rotate.
[0051] like Figure 3 As shown, the worm gear lifting device in this embodiment also includes a limiting device, which includes a boss 61 and a triggering device 62. The limiting device moves synchronously with the first worm 22 and / or the second worm 32. The triggering device 62 keeps its position fixed relative to the printing platform 7. The boss 61 has an inclined surface 611 at one end facing the triggering device 62. The distance between the upper end of the inclined surface 611 and the triggering device 62 in the horizontal direction is greater than the distance between the lower end of the inclined surface 611 and the triggering device 62 in the horizontal direction.
[0052] The boss 61 can be set on the side of the base plate, with the inclined surface 611 of the boss 61 facing the triggering device 62. When the guide post 52 moves upward, the inclined surface 611 of the boss 61 can push the triggering device 62, causing the triggering device 62 to generate a trigger signal. After receiving the trigger signal, the control circuit shuts down the driver 11 of the drive mechanism 1, which serves as a limit.
[0053] In this embodiment, a first housing 27 and a second housing 37 are also included. The mating portions of the second worm gear 31 and the second worm 32 are located within the sealed second housing 37, and / or the mating portions of the second worm gear 31 and the second worm 32 are located within the sealed second housing 37. This structure not only ensures the reliability of the worm gear transmission but also prevents dust from contaminating the transmission components, thereby reducing the frequency of maintenance.
[0054] In this embodiment, the first worm gear 21, the second worm gear 31, and the worm gear shaft 4 are an integrated structure. This structure has a strong load-bearing capacity and can improve the stability of the lifting device.
[0055] In this embodiment, the first worm gear 21 and the second worm gear 31 are respectively connected to the worm gear shaft 4 via couplings. This structure can reduce the manufacturing difficulty of each component, thereby reducing manufacturing costs.
[0056] Example 2
[0057] This embodiment provides a three-dimensional surface printing device for products, which includes the worm gear lifting device described in Embodiment 1. Because this embodiment uses the worm gear lifting device from Embodiment 1, the printing device not only has a stable structure and strong load-bearing capacity, but also achieves higher printing accuracy.
[0058] The above description is merely a specific embodiment of this utility model. Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.
Claims
1. A worm gear lifting device, characterized in that, include: Drive mechanism; The first lifting assembly includes a first worm gear, a first worm, and a first support member. The output end of the drive mechanism is connected to the first worm gear. The first worm gear cooperates with the first worm, and the first support member is connected to one end of the first worm. The second lifting assembly includes a second worm gear, a second worm, and a second support member. The second worm gear cooperates with the second worm, and the second support member is connected to one end of the second worm. The worm gear shaft has one end connected to the first worm gear and the other end connected to the second worm gear. The second worm gear rotates synchronously with the first worm gear under the drive of the worm gear shaft. The first lifting assembly and the second lifting assembly are located on both sides of the printing platform of the printing device, and the axial directions of the first worm and the second worm are parallel to each other.
2. The worm gear lifting device according to claim 1, characterized in that, The first lifting assembly further includes a first guide mechanism and a second guide mechanism. The first guide mechanism and the second guide mechanism are guided in the vertical direction, and the first guide mechanism and the second guide mechanism are located on opposite sides of the first worm gear in the horizontal direction. The second lifting assembly also includes a third guide mechanism and a fourth guide mechanism, the third guide mechanism and the fourth guide mechanism being guided in a vertical direction, and the third guide mechanism and the fourth guide mechanism being located on opposite sides of the second worm gear in a horizontal direction.
3. The worm gear lifting device according to claim 2, characterized in that, The first, second, third, and fourth guiding mechanisms each include a guide block and a guide post. The guide block is provided with a guide hole, and the guide post passes through the guide hole. The axis of the guide hole is vertical.
4. The worm gear lifting device according to claim 3, characterized in that, It also includes a first base plate and a second base plate. One end of the guide column of the first lifting component is connected to the first support member, and the other end is connected to the first base plate. One end of the guide column of the second lifting component is connected to the second support member, and the other end is connected to the second base plate.
5. The worm gear lifting device according to claim 1, characterized in that, The worm gear shaft is located on the side of the printing platform facing away from the printing module.
6. The worm gear lifting device according to claim 1, characterized in that, It also includes a limiting device, which includes a boss and a triggering device. The boss moves synchronously with the first worm and / or the second worm. The triggering device keeps its position fixed relative to the printing platform. The end of the boss facing the triggering device is provided with an inclined surface. The distance between the upper end of the inclined surface and the triggering device in the horizontal direction is greater than the distance between the lower end of the inclined surface and the triggering device in the horizontal direction.
7. The worm gear lifting device according to claim 1, characterized in that, The drive mechanism includes a driver, a first pulley, a second pulley, and a transmission belt. The output end of the driver is connected to the input end of the first pulley. At least a portion of the transmission belt is wound around the first pulley, and at least a portion is wound around the second pulley.
8. The worm gear lifting device according to claim 1, characterized in that, It also includes a first housing and a second housing, wherein the portion of the first worm gear and the first worm that mate is located in the sealed first housing and / or the portion of the second worm gear and the second worm that mate is located in the sealed second housing.
9. The worm gear lifting device according to any one of claims 1 to 8, characterized in that, The first worm gear, the second worm gear, and the worm gear shaft are an integrated structure, or the first worm gear and the second worm gear are respectively connected to the worm gear shaft via couplings.
10. A three-dimensional surface printing device for products, characterized in that, The worm gear lifting device includes any one of claims 1 to 9.