Printing apparatus

Abstract

The utility model provides printing equipment. The printing equipment comprises a rack, a first nozzle mechanism and a second nozzle mechanism, a second nozzle mechanism; the extrusion mechanism comprises a first driving assembly, and a first extrusion assembly and a second extrusion assembly which are in transmission connection with the first driving assembly; the lifting mechanism is connected with the second nozzle mechanism, the printing equipment comprises a first working state in which the first nozzle mechanism works and a second working state in which the second nozzle mechanism works, and the lifting mechanism is used for driving the second nozzle mechanism to move relative to the first nozzle mechanism; therefore, the printing equipment can be switched between the first working state and the second working state. The first driving assembly is used for driving the first extrusion assembly to convey consumables to the first nozzle mechanism in a first working state and driving the second extrusion assembly to convey consumables to the second nozzle mechanism in a second working state; the printing equipment can be switched between the first working state and the second working state by driving the second nozzle mechanism to move, and the printing precision is high.

Description

Technical Field

[0001] The present application relates to the technical field of printing equipment, and in particular to a printing equipment. Background Art

[0002] In the actual printing process of existing printing devices, when the nozzle mechanism needs to be switched for printing, one of the nozzle mechanisms needs to be driven up and the other nozzle mechanism needs to be driven down, which affects the printing accuracy of the printing device. Therefore, how to provide a printing device to improve printing accuracy is a technical problem that needs to be urgently solved in this field. Utility Model Content

[0003] In view of the above problems, the present application provides a printing device, aiming to solve the technical problem of low printing accuracy of printing devices in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted in the present application is conceived as follows: The present application provides a printing device, including: a frame and a first nozzle mechanism installed on the frame; a second nozzle mechanism; an extrusion mechanism, including a first driving component and a first extrusion component and a second extrusion component transmission-connected to the first driving component; a lifting mechanism, connected to the second nozzle mechanism, the printing device includes a first working state of the first nozzle mechanism and a second working state of the second nozzle mechanism, the lifting mechanism is used to drive the second nozzle mechanism to move relative to the first nozzle mechanism to realize the switching of the printing device between the first working state and the second working state; the first driving component is used to drive the first extrusion component to convey consumables to the first nozzle mechanism in the first working state, and is used to drive the second extrusion component to convey consumables to the second nozzle mechanism in the second working state.

[0005] Different from the prior art, the beneficial effects of the embodiments of the present application are as follows: the printing device provided by the present application includes a frame and a first nozzle mechanism, a second nozzle mechanism, an extrusion mechanism and a lifting mechanism connected to the second nozzle mechanism installed on the frame, the extrusion mechanism includes a first driving component and a first extrusion component and a second extrusion component transmission-connected to the first driving component, the printing device includes a first working state of the first nozzle mechanism and a second working state of the second nozzle mechanism, the first driving component is used to drive the first extrusion component to convey consumables to the first nozzle mechanism in the first working state, and to drive the second extrusion component to convey consumables to the second nozzle mechanism in the second working state, the lifting mechanism is used to drive the second nozzle mechanism to move relative to the first nozzle mechanism, and at the same time, the extrusion mechanism responds to the movement of the second nozzle mechanism to convey consumables to the first nozzle mechanism or the second nozzle mechanism, so as to realize the switching of the printing device between the first working state and the second working state. In the embodiment of the present application, the lifting mechanism drives the second nozzle mechanism to move relative to the first nozzle mechanism, and the extrusion mechanism responds to the movement of the second nozzle mechanism to transport consumables to the first nozzle mechanism or the second nozzle mechanism, so as to realize the switching of the printing device between the first working state and the second working state. In the actual printing process of the printing device, when it is necessary to switch the first nozzle mechanism and the second nozzle mechanism for printing, the first nozzle mechanism can remain fixed, and only the second nozzle mechanism needs to be driven to move relative to the first nozzle mechanism to switch the first nozzle mechanism and the second nozzle mechanism for printing. Compared with the related art, the moving parts are reduced, so that the interference of the printing device when switching the two nozzle mechanisms for printing is greatly reduced, thereby improving the stability of the printing device and further improving the printing accuracy of the printing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0007] Figure 1 It is a structural schematic diagram of the printing device provided by this application;

[0008] Figure 2 is a top view of the extrusion mechanism of the printing device provided by the present application;

[0009] Figure 3 yes Figure 2 A schematic diagram of the structure of the first extrusion assembly and the second extrusion assembly;

[0010] Figure 4It is a rear view of the printing device provided by the present application with some structures hidden;

[0011] Figure 5 It is a schematic diagram of the structure of the cooperation between the first extrusion gear and the third extrusion gear of the printing device provided by the present application;

[0012] Figure 6 It is a schematic diagram of the structure of the cooperation between the second extrusion gear and the fourth extrusion gear of the printing device provided by the present application;

[0013] Figure 7 It is a structural schematic diagram of another embodiment of the extrusion mechanism of the printing device provided in the present application.

[0014] Figure numerals: 10-frame, 11-frame, 11a-accommodating space, 111-first fixing plate, 112-second fixing plate, 113-support seat, 114-first base, 115-second base, 116-first limiting plate, 117-second limiting plate, 118-third limiting plate, 12-first rotating shaft, 13-second rotating shaft, 20-first nozzle mechanism, 20a-first channel, 21-first nozzle, 30-second nozzle mechanism, 30a-second channel, 31-second nozzle, 40-extrusion mechanism, 41-driving assembly, 411-first driving member, 412-first driving shaft, 413-driving gear, 414-reduction gear, 42-first extrusion assembly, 42a-first gap, 421-first extrusion gear, 4211-first meshing portion, 421a-first groove, 422-third extrusion gear, 4221-third meshing portion, 422 a-third groove, 43-second extrusion assembly, 43a-second gap, 431-second extrusion gear, 4311-second meshing portion, 431a-second groove, 432-fourth extrusion gear, 4321-fourth meshing portion, 432a-fourth groove, 44-second trigger member, 441-first driving end, 45-first swinging member, 451-first contact portion, 452-first abutting portion, 453-first rotating portion, 46-third trigger member, 461-second driving end, 47-second swinging member, 471-second contact portion, 472-second abutting portion, 473-second rotating portion, 48-second reset member, 49-third reset member, 50-lifting mechanism, 511-second driving member, 512-second driving shaft, 52 trigger assembly, 521-first trigger member, 5211-third trigger end, 522-sliding block, 53-sliding shaft, 54-first reset member. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0016] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0017] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0018] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0019] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] With the development of industrial production technology, 3D FDM printing technology has emerged. Taking the use scenario of 3D FDM printing equipment as an example, the technical solution of the printing equipment provided by this application is described. The printing equipment includes a first nozzle mechanism and a second nozzle mechanism. According to consumables: the first nozzle mechanism and the second nozzle mechanism can print the same type of consumables, and can also print different types of consumables; the first nozzle mechanism and the second nozzle mechanism can print consumables of the same color, and can also print consumables of different colors. According to the printing function: one of the first nozzle mechanism and the second nozzle mechanism is used to print the outline, and the other is used to fill the inside of the outline.

[0021] See also Figure 1 The present application provides a printing device 1000, which only needs to drive the second nozzle mechanism 30 to move relative to the first nozzle mechanism 20 to switch between the first nozzle mechanism 20 and the second nozzle mechanism 30 for printing. Compared with the related art, the number of moving parts is reduced, so that the interference of the printing device 1000 when switching the two nozzle mechanisms is greatly reduced, thereby improving the stability of the printing device 1000, and further improving the printing accuracy of the printing device 1000.

[0022] Please also read Figures 2 to 3 The printing device 1000 includes a frame 10 and a first nozzle mechanism 20, a second nozzle mechanism 30, an extrusion mechanism 40 and a lifting mechanism 50 installed on the frame 10. The extrusion mechanism 40 includes a first driving component 41 and a first extrusion component 42 and a second extrusion component 43 that are transmission-connected to the first driving component 41. The lifting mechanism 50 is connected to the second nozzle mechanism 30. The printing device 1000 includes a first working state in which the first nozzle mechanism 20 works and a second working state in which the second nozzle mechanism 30 works. The lifting mechanism 50 is used to drive the second nozzle mechanism 30 to move relative to the first nozzle mechanism 20, so as to realize the switching of the printing device 1000 between the first working state and the second working state. The first driving component 41 is used to drive the first extrusion component 42 to convey consumables to the first nozzle mechanism 20 in the first working state, and to drive the second extrusion component 43 to convey consumables to the second nozzle mechanism 30 in the second working state.

[0023] The frame 10 serves as a basic carrier of the printing device 1000 and plays a role in carrying and protecting other components of the printing device 1000, wherein the other components include a first nozzle mechanism 20, a second nozzle mechanism 30, an extrusion mechanism 40 and a lifting mechanism 50, but are not limited thereto.

[0024] The input end of the first nozzle mechanism 20 is arranged below the first extrusion assembly 42 and corresponds to the output end of the first extrusion assembly 42. The input end of the second nozzle mechanism 30 is arranged below the second extrusion assembly 43 and corresponds to the output end of the second extrusion assembly 43. The first extrusion assembly 42 and the second extrusion assembly 43 are both connected to the first drive assembly 41 in a transmission manner, and the first drive assembly 41 can drive the first extrusion assembly 42 and the second extrusion assembly 43 to move, so as to respectively convey consumables to the first nozzle mechanism 20 and the second nozzle mechanism 30. Specifically, in the first working state, the first drive assembly 41 can drive the first extrusion assembly 42 to move, so as to convey the consumables from the output end of the first extrusion assembly 42 to the first nozzle mechanism 20 via the input end of the first nozzle mechanism 20, thereby realizing conveying consumables to the first nozzle mechanism 20 in the first working state; in the second working state, the first drive assembly 41 can drive the second extrusion assembly 43 to move, so as to convey the consumables from the output end of the second extrusion assembly 43 to the second nozzle mechanism 30 via the input end of the second nozzle mechanism 30, thereby realizing conveying consumables to the second nozzle mechanism 30 in the second working state.

[0025] The lifting mechanism 50 is connected to the second nozzle mechanism 30, and is used to drive the second nozzle mechanism 30 to move relative to the first nozzle mechanism 20. Specifically, the lifting mechanism 50 can drive the second nozzle mechanism 30 to move downward, so that the printing device 1000 switches from the first working state to the second working state, and the lifting mechanism 50 can also drive the second nozzle mechanism 30 to move upward, so that the printing device 1000 switches from the second working state to the first working state. During the process of the printing device 1000 switching between the first working state and the second working state, the lifting mechanism 50 drives the second nozzle mechanism 30 to move relative to the first nozzle mechanism 20, and the first nozzle mechanism 20 remains fixed. The second nozzle mechanism 30 is driven to move relative to the first nozzle mechanism 20 by the lifting mechanism 50, and the consumables are conveyed to the first nozzle mechanism 20 or the second nozzle mechanism 30 by the extrusion mechanism 40 in response to the movement of the second nozzle mechanism 30, so as to realize the switching of the printing device 1000 between the first working state and the second working state, so that when the printing device 1000 needs to switch the first nozzle mechanism 20 and the second nozzle mechanism 30 for printing during the actual printing process, the first nozzle mechanism 20 can remain fixed, and only the second nozzle mechanism 30 needs to be driven to move relative to the first nozzle mechanism 20 to switch the first nozzle mechanism 20 and the second nozzle mechanism 30 for printing. Compared with the related art, the moving parts are reduced, so that the interference of the printing device 1000 when switching the two nozzle mechanisms is greatly reduced, thereby improving the stability of the printing device 1000, and further improving the printing accuracy of the printing device 1000.

[0026] The consumables of the printing device 1000 may be thermoplastic materials, such as, but not limited to, acrylonitrile butadiene styrene (ABS) plastic, carbon fiber, polylactic acid (PLA), etc. The consumables of the printing device 1000 may also be metal materials, such as, but not limited to, aluminum, titanium, stainless steel, etc.

[0027] In some embodiments, please refer to Figure 2, the first extrusion assembly 42 includes a first extrusion gear 421 and a third extrusion gear 422. The second extrusion assembly 43 includes a second extrusion gear 431 and a fourth extrusion gear 432. The first driving assembly 41 is connected to the first extrusion gear 421 and the second extrusion gear 431 in a transmission manner. The first driving assembly 41 is used to drive the first extrusion gear 421 to rotate in the first working state to convey consumables to the first nozzle mechanism 20. The first driving assembly 41 is also used to drive the second extrusion gear 431 to rotate in the second working state to convey consumables to the second nozzle mechanism 30. In the first working state, the third extrusion gear 422 is meshed with the first extrusion gear 421 and the fourth extrusion gear 432 is separated from the second extrusion gear 431. In the second working state, the fourth extrusion gear 432 is meshed with the second extrusion gear 431 and the third extrusion gear 422 is separated from the first extrusion gear 421.

[0028] The output end of the first extrusion assembly 42 is located between the first extrusion gear 421 and the third extrusion gear 422. The output end of the second extrusion assembly 43 is located between the second extrusion gear 431 and the fourth extrusion gear 432. In the first working state, the third extrusion gear 422 is meshed with the first extrusion gear 421 and the fourth extrusion gear 432 is separated from the second extrusion gear 431, and the first driving assembly 41 drives the first extrusion gear 421 to rotate, so as to drive the third extrusion gear 422 to rotate synchronously, thereby driving the consumables to be transported to the first nozzle mechanism 20 through the output end of the first extrusion assembly 42, thereby realizing the conveying of consumables to the first nozzle mechanism 20. In the second working state, the fourth extrusion gear 432 is meshed with the second extrusion gear 431 and the third extrusion gear 422 is separated from the first extrusion gear 421, and the first driving assembly 41 drives the second extrusion gear 431 to rotate, so as to drive the fourth extrusion gear 432 to rotate synchronously, thereby driving the consumables to be transported to the second nozzle mechanism 30 through the output end of the second extrusion assembly 43, thereby realizing the conveying of consumables to the second nozzle mechanism 30.

[0029] It should be noted that, in the process of the first extrusion gear 421 driving the third extrusion gear 422 to rotate synchronously, the rotation directions of the first extrusion gear 421 and the third extrusion gear 422 can be the same, for example, both can rotate clockwise, or both can rotate counterclockwise; or the rotation directions of the first extrusion gear 421 and the third extrusion gear 422 can be opposite, for example, one rotates clockwise and the other rotates counterclockwise. It is only necessary to be able to transport consumables to the first nozzle mechanism 20 during the process of the first extrusion gear 421 driving the third extrusion gear 422 to rotate synchronously. In the process of the second extrusion gear 431 driving the fourth extrusion gear 432 to rotate synchronously, the second extrusion gear 431 and the fourth extrusion gear 432 can have the same rotation direction, for example, both can rotate clockwise or counterclockwise; or the second extrusion gear 431 and the fourth extrusion gear 432 can have opposite rotation directions, for example, one rotates clockwise and the other rotates counterclockwise, as long as the second extrusion gear 431 drives the fourth extrusion gear 432 to rotate synchronously to transport consumables to the second nozzle mechanism 30.

[0030] In some embodiments, when the first extrusion gear 421 is meshed with the third extrusion gear 422, there is a first gap 42a between the first extrusion gear 421 and the third extrusion gear 422, which is connected to the first nozzle mechanism 20. When the second extrusion gear 431 is meshed with the fourth extrusion gear 432, there is a second gap 43a between the second extrusion gear 431 and the fourth extrusion gear 432, which is connected to the second nozzle mechanism 30. The first gap 42a and the second gap 43a are used to allow the consumables to pass through and guide the consumables therein.

[0031] In the first working state, the consumable enters from one end of the first gap 42a, and enters the first nozzle mechanism 20 from the other end of the first gap 42a driven by the first extrusion gear 421 and the third extrusion gear 422, thereby delivering the consumable to the first nozzle mechanism 20. In the second working state, the consumable enters from one end of the second gap 43a, and enters the second nozzle mechanism 30 from the other end of the second gap 43a driven by the second extrusion gear 431 and the fourth extrusion gear 432, thereby delivering the consumable to the second nozzle mechanism 30. The first extrusion gear 421 and the third extrusion gear 422 can drive and guide the movement of the consumable in the first gap 42a, and the second extrusion gear 431 and the fourth extrusion gear 432 can drive and guide the movement of the consumable in the second gap 43a, thereby preventing the consumable from leaking from the first gap 42a and the second gap 43a and contaminating the printing device 1000, thereby improving the cleanliness of the printing device 1000.

[0032] In some embodiments, please refer to Figure 3The first extrusion gear 421 is formed with a first meshing portion 4211 and a first groove 421a, wherein the first meshing portion 4211 is formed at one end of the first extrusion gear 421, and the first groove 421a is formed at the other end of the first extrusion gear 421, and the first meshing portion 4211 and the first groove 421a are both arranged around the circumference of the first extrusion gear 421. The third extrusion gear 422 is formed with a third meshing portion 4221 matched with the first meshing portion 4211 of the first extrusion gear 421, and a third groove 422a matched with the first groove 421a, and the third meshing portion 4221 is used to mesh with the first meshing portion 4211, and a first gap 42a is formed between the first groove 421a and the third groove 422a. The second extrusion gear 431 is formed with a second meshing portion 4311 and a second groove 431a, wherein the second meshing portion 4311 is formed at one end of the second extrusion gear 431, and the second groove 431a is formed at the other end of the second extrusion gear 431, and the second meshing portion 4311 and the second groove 431a are both arranged around the circumference of the second extrusion gear 431. The fourth extrusion gear 432 is formed with a fourth meshing portion 4321 matched with the second meshing portion 4311 of the second extrusion gear 431, and a fourth groove 432a matched with the second groove 431a, and the fourth meshing portion 4321 is used to mesh with the second meshing portion 4311, and a second gap 43a is formed between the second groove 431a and the fourth groove 432a.

[0033] In some embodiments, the first extrusion gear 421 and the third extrusion gear 422 are curved bevel gears arranged opposite to each other, and the second extrusion gear 431 and the fourth extrusion gear 432 are curved bevel gears arranged opposite to each other. The first extrusion gear 421 and the third extrusion gear 422 of the curved bevel gear structure can rotate synchronously while clamping the consumables, and the second extrusion gear 431 and the fourth extrusion gear 432 of the curved bevel gear structure can rotate synchronously while clamping the consumables, thereby improving the transmission efficiency and the precision of the extrusion transmission.

[0034] In some embodiments, please refer to Figure 2 The first driving assembly 41 includes a first driving member 411, a first driving shaft 412, a driving gear 413 and a reduction gear 414. The first extrusion gear 421, the reduction gear 414 and the second extrusion gear 431 are coaxially arranged. One end of the first driving shaft 412 is connected to the first driving member 411. The driving gear 413 is arranged at the other end of the first driving shaft 412 and meshes with the reduction gear 414, and is used to drive the reduction gear 414 to rotate to drive the first extrusion gear 421 and the second extrusion gear 431 to rotate, so that the first extrusion gear 421 drives the third extrusion gear 422 to rotate or the second extrusion gear 431 drives the fourth extrusion gear 432 to rotate.

[0035] The first extrusion gear 421, the reduction gear 414 and the second extrusion gear 431 are coaxially arranged, and the driving gear 413 of the first driving member 411 is meshed with the reduction gear 414, so that the first driving member 411 can rotate through the driving gear 413 and the reduction gear 414 in the first working state to drive the first extrusion gear 421 to rotate, so that the first extrusion gear 421 drives the third extrusion gear 422 to rotate, so as to transport the consumables to the first nozzle mechanism 20, and can rotate through the driving gear 413 and the reduction gear 414 in the second working state to drive the second extrusion gear 4 31 rotates, so that the second extrusion gear 431 drives the fourth extrusion gear 432 to rotate, so as to transport the consumables to the second nozzle mechanism 30. That is, the printing device 1000 provided in the present application only switches to the first nozzle mechanism 20 and the second nozzle mechanism 30 to transport the consumables through the first driving member 411 during the actual printing process. Compared with the related art, the driving members for transporting the consumables to the two nozzle mechanisms are reduced, which not only reduces the volume of the printing device 1000, but also improves the efficiency of transporting the consumables to the first nozzle mechanism 20 and the second nozzle mechanism 30, thereby improving the printing efficiency.

[0036] In the first working state, since the fourth extrusion gear 432 is separated from the second extrusion gear 431, the second extrusion assembly 43 will not deliver consumables to the second nozzle mechanism 30, thereby preventing the second nozzle mechanism 30 from interfering with the printed model when working in the first working state, further improving the printing accuracy. In the second working state, since the third extrusion gear 422 is separated from the first extrusion gear 421, the first extrusion assembly 42 will not deliver consumables to the first nozzle mechanism 20, thereby preventing the first nozzle mechanism 20 from interfering with the printed model when working in the second working state, further improving the printing accuracy.

[0037] The first driving member 411 can be a motor, which has a high-precision reliable driving function, so that it can reliably and accurately control the rotation speed of the reduction gear 414, and then reliably and accurately control the rotation speed of the first extrusion gear 421 and the third extrusion gear 422 and the rotation speed of the fourth extrusion gear 432 and the second extrusion gear 431, so that the speed of conveying consumables to the first nozzle mechanism 20 and the second nozzle mechanism 30 is controllable, thereby realizing controllable printing speed of the printing device 1000, and the user can control the printing speed of the printing device 1000 according to needs, thereby improving printing accuracy and user experience.

[0038] In some embodiments, please refer to Figure 1The frame 10 includes a frame 11 and a second rotating shaft 13. The frame 11 includes a first fixed plate 111 and a second fixed plate 112 which are arranged opposite to each other in a first direction XX. The first driving member 411 is arranged on a side of the first fixed plate 111 which faces away from the second fixed plate 112, and the first driving shaft 412 passes through the first fixed plate 111 and extends in a direction toward the second fixed plate 112. The second rotating shaft 13 is rotatably arranged between the first fixed plate 111 and the second fixed plate 112. The first extrusion gear 421, the reduction gear 414 and the second extrusion gear 431 are arranged on the second rotating shaft 13 in sequence in a direction from the first fixed plate 111 to the second fixed plate 112. The second rotating shaft 13 and the first driving shaft 412 are arranged at intervals in a second direction ZZ, and the second direction ZZ is perpendicular to the first direction XX. The second direction ZZ may be the arrangement direction of the top and bottom of the printing device 1000, that is, the second direction ZZ may be the height direction of the printing device 1000.

[0039] The first fixed plate 111 and the second fixed plate 112 are arranged opposite to each other in the first direction XX. The structure of the first fixed plate 111 and the structure of the second fixed plate 112 can be the same or mirror images of each other. Of course, the structure of the first fixed plate 111 and the structure of the second fixed plate 112 can be different and not mirror images of each other. The structures of the first fixed plate 111 and the second fixed plate 112 can be set according to actual needs and are not limited here. The first driving member 411 can be arranged on the side of the first fixed plate 111 facing away from the second fixed plate 112. The first fixed plate 111 has a through hole for the first driving shaft 412 to pass through. The first driving shaft 412 extends from the first driving member 411 to the direction of the second fixed plate 112 through the through hole. The extension direction of the first driving shaft 412 is parallel to the first direction XX. In some embodiments, the first driving member 411 can also be arranged on the side of the second fixed plate 112 facing away from the first fixed plate 111. The first driving member 411 may be disposed on a side of the second fixing plate 112 facing away from the first fixing plate 111 . The disposition of the first driving shaft 412 may refer to the above embodiment and will not be described in detail herein.

[0040] The first extrusion gear 421, the reduction gear 414 and the second extrusion gear 431 can be fixed to the second rotating shaft 13, or the first extrusion gear 421, the reduction gear 414 and the second extrusion gear 431 can also rotate relative to the second rotating shaft 13. By meshing the driving gear 413 connected to the first driving member 411 with the reduction gear 414, the first driving member 411 can drive the second rotating shaft 13 to rotate through the driving gear 413 and the reduction gear 414, thereby driving the first extrusion gear 421 and the second extrusion gear 431 disposed on the second rotating shaft 13 to rotate.

[0041] The second rotating shaft 13 extends along the first direction XX, and the first extrusion gear 421, the reduction gear 414 and the second extrusion gear 431 are sequentially spaced apart on the second rotating shaft 13 in the direction from the first fixed plate 111 to the second fixed plate 112, and the first extrusion gear 421 is spaced apart from the first fixed plate 111, and the second extrusion gear 431 is spaced apart from the second fixed plate 112, thereby avoiding interference between the first extrusion gear 421, the second extrusion gear 431, the reduction gear 414, the third extrusion gear 422 and the fourth extrusion gear 432 during operation of the printing device 1000.

[0042] The first extrusion gear 421 and the third extrusion gear 422 are arranged in parallel in the third direction YY. The second extrusion gear 431 and the fourth extrusion gear 432 are arranged in parallel in the third direction YY. The first direction XX, the second direction ZZ and the third direction YY are perpendicular to each other.

[0043] In some embodiments, please refer to Figure 4 The lifting mechanism 50 includes a second driving member 511 and a second driving shaft 512 connected to the second driving member 511. The second driving member 511 is used to drive the second driving shaft 512 to drive the second nozzle mechanism 30 to move from the second position to the first position, and drive the third extrusion gear 422 to engage with the first extrusion gear 421 and the fourth extrusion gear 432 to separate from the second extrusion gear 431. The second driving member 511 is also used to drive the second driving shaft 512 to drive the second nozzle mechanism 30 to move from the first position to the second position, and drive the fourth extrusion gear 432 to engage with the second extrusion gear 431 and the third extrusion gear 422 to separate from the first extrusion gear 421, so as to realize the switching of the printing device 1000 between the first working state and the second working state.

[0044] The second driving member 511 is in transmission connection with the third extrusion gear 422, the fourth extrusion gear 432 and the second nozzle mechanism 30 through the second driving shaft 512. The second driving member 511 can drive the second driving shaft 512 to drive the third extrusion gear 422, the fourth extrusion gear 432 and the second nozzle mechanism 30 to move, so that the third extrusion gear 422 is meshed with the first extrusion gear 421, the fourth extrusion gear 432 is separated from the second extrusion gear 431, and the second nozzle mechanism 30 is moved up from the second position to the first position, so that the printing device 1000 is switched from the second working state to the first working state; or the third extrusion gear 422 is separated from the first extrusion gear 421, the fourth extrusion gear 432 is meshed with the second extrusion gear 431, and the second nozzle mechanism 30 is moved down from the first position to the second position, so that the printing device 1000 is switched from the first working state to the second working state.

[0045] The second nozzle mechanism 30 is driven to move relative to the first nozzle mechanism 20 through the second driving member 511, and the third extrusion gear 422 is driven to engage or disengage with the first extrusion gear 421 and the fourth extrusion gear 432 is driven to engage or disengage with the second extrusion gear 431, thereby realizing the switching of the printing device 1000 between the first working state and the second working state, reducing the number of driving components, allowing the printing device 1000 to operate stably, thereby further improving the printing accuracy of the printing device 1000, and at the same time, reducing the energy consumption of the printing device 1000.

[0046] During the switching process of the printing device 1000 between the first working state and the second working state, the first nozzle mechanism 20 remains stationary, and the position of the first nozzle mechanism 20 is located between the first position and the second position. The first position and the second position are spaced apart in the height direction.

[0047] The first position and the second position are arranged at intervals along the height direction, that is, the first position and the second position are arranged at intervals in the second direction ZZ, and the second position is located below the first position. The first position may be the position where the second nozzle mechanism 30 of the printing device 1000 is located in the first working state. The second position may be the position where the second nozzle mechanism 30 of the printing device 1000 is located in the second working state. The position where the first nozzle mechanism 20 is located is located between the first position and the second position, so that when the second nozzle mechanism 30 is in the second position, the position where the second nozzle mechanism 30 is located is lower than the position where the first nozzle mechanism 20 is located; when the second nozzle mechanism 30 is in the first position, the position where the second nozzle mechanism 30 is located is higher than the position where the first nozzle mechanism 20 is located. That is, in the second working state, the position of the second nozzle mechanism 30 is lower than the position of the first nozzle mechanism 20, and in the first working state, the position of the second nozzle mechanism 30 is higher than the position of the first nozzle mechanism 20, so that in the actual printing process of the printing device 1000, there will be no interference between the first nozzle mechanism 20 and the second nozzle mechanism 30, and the unused nozzle mechanisms in the first nozzle mechanism 20 and the second nozzle mechanism 30 will not interfere with the printing model, so that the printing paths of the first nozzle mechanism 20 and the second nozzle mechanism 30 can be planned and designed, and the complexity of path planning of the first nozzle mechanism 20 and the second nozzle mechanism 30 during the printing process is reduced, and the proportion of repeated movements of the first nozzle mechanism 20 and the second nozzle mechanism 30 on the printing platform is reduced, so that the printing paths of the first nozzle mechanism 20 and the second nozzle mechanism 30 can be better optimized, thereby improving printing efficiency.

[0048] In some embodiments, the lifting mechanism 50 also includes a trigger assembly 52, which is transmission-connected to the second drive shaft 512. The second drive member 511 is used to drive the second drive shaft 512 to drive the trigger assembly 52 to push the second nozzle mechanism 30 downward, so that the second nozzle mechanism 30 moves downward from the first position to the second position, thereby switching the printing device 1000 from the first working state to the second working state.

[0049] The trigger assembly 52 is at least partially disposed on the second nozzle mechanism 30 and is in transmission connection with the second drive shaft 512, and is used for accurately adjusting the lifting and lowering of the second nozzle mechanism 30 under the drive of the second drive member 511, so that the second nozzle mechanism 30 can be accurately moved down to a second position lower than the position of the first nozzle mechanism 20, thereby avoiding the non-working first nozzle mechanism 20 interfering with the printing model when the second nozzle mechanism 30 is working in the second working state, thereby improving the printing accuracy.

[0050] In some embodiments, the lifting mechanism 50 includes a sliding shaft 53, and the trigger assembly 52 includes a first trigger member 521 and a sliding block 522 slidably disposed on the sliding shaft 53. The first trigger member 521 is disposed on the second driving shaft 512. One end of the sliding block 522 is disposed on the second nozzle mechanism 30, and the other end extends toward the first trigger member 521. The second driving member 511 is used to drive the first trigger member 521 to rotate so as to abut against the sliding block 522, and to push the sliding block 522 to slide along the sliding shaft 53 in a direction away from the first trigger member 521, so that the second nozzle mechanism 30 moves downward from the first position to the second position, thereby switching the printing device 1000 from the first working state to the second working state.

[0051] One end of the sliding block 522 is arranged on the second nozzle mechanism 30, and the other end extends toward the first trigger member 521. The first trigger member 521 is arranged on the second driving shaft 512. The first trigger member 521 includes a third driving end 5211. In the first working state, the third driving end 5211 is staggered relative to the sliding block 522, and the first trigger member 521 does not apply a thrust to the sliding block 522. In the process of the printing device 1000 switching from the first working state to the second working state, when the second driving member 511 drives the first trigger member 521 to rotate until the third driving end 5211 abuts against the sliding block 522, the third driving end 5211 can push the sliding block 522 to slide along the sliding shaft 53 in the direction away from the first trigger member 521, so that the second nozzle mechanism 30 moves downward from the first position to the second position, thereby switching the printing device 1000 from the first working state to the second working state.

[0052] The surface of the sliding shaft 53 and the contact surface between the sliding block 522 and the sliding shaft 53 are smooth, so that the sliding block 522 can slide smoothly along the sliding shaft 53, thereby improving the switching efficiency when switching the working state of the printing device 1000.

[0053] In some embodiments, the lifting mechanism 50 further includes a first reset member 54. The first reset member 54 is connected to the trigger assembly 52, and stores an upward restoring force when the trigger assembly 52 abuts against the second nozzle mechanism 30 downward; the second driving member 511 is also used to drive the second driving shaft 512 to release the abutment of the trigger assembly 52 against the second nozzle mechanism 30, so that the first reset member 54 pushes the trigger assembly 52 to move upward, thereby resetting the second nozzle mechanism 30 from the second position to the first position, so that the printing device 1000 switches from the second working state to the first working state.

[0054] Specifically, when the second driving member 511 drives the second driving shaft 512 to drive the trigger assembly 52 to press the second nozzle mechanism 30 downward, the trigger assembly 52 compresses the first reset member 54 downward so that the first reset member 54 stores an upward restoring force; when the second driving member 511 also drives the second driving shaft 512 to release the trigger assembly 52 from pressing the second nozzle mechanism 30, the first reset member 54 restores its elastic deformation and releases the upward restoring force to push the trigger assembly 52 to move upward, thereby resetting the second nozzle mechanism 30 from the second position to the first position, thereby switching the printing device 1000 from the second working state to the first working state.

[0055] By providing the first reset member 54 and relying on the restoring force stored in the first reset member 54 to push the trigger assembly 52 upward, the second nozzle mechanism 30 is reset from the second position to the first position. On the one hand, the second nozzle mechanism 30 can be accurately reset to the first position higher than the position of the first nozzle mechanism 20, thereby avoiding interference between the non-working second nozzle mechanism 30 and the printing model when the first nozzle mechanism 20 is working in the first working state, thereby improving the printing accuracy. On the other hand, the resetting efficiency of the second nozzle mechanism 30 is improved.

[0056] In some embodiments, the first reset member 54 is sleeved on the sliding shaft 53 and is located between the sliding block 522 and the second nozzle mechanism 30. When the second nozzle mechanism 30 moves downward from the first position to the second position, the sliding block 522 compresses the first reset member 54 downward so that the first reset member 54 stores an upward restoring force. When the second driving member 511 drives the first trigger member 521 to rotate until the third driving end 5211 is staggered relative to the sliding block 522, the force of the third driving end 5211 on the sliding block 522 disappears, and the first reset member 54 restores its elastic deformation. The restoring force released when the first reset member 54 restores its elastic deformation can push the sliding block 522 to slide along the sliding shaft 53 in a direction away from the first reset member 54, so that the second nozzle mechanism 30 is reset from the second position to the first position.

[0057] The first reset member 54 can generate elastic deformation. The first reset member 54 can be a spring, or the first reset member 54 can also be other elastic structures. The specific type of the first reset member 54 can be selected according to actual needs and is not limited here.

[0058] Please also read Figure 5 The first nozzle mechanism 20 includes a first channel 20a and a first nozzle 21. One end of the first channel 20a is connected to the first gap 42a between the first extrusion gear 421 and the third extrusion gear 422, and the other end is connected to the first nozzle 21, that is, the first gap 42a, the first channel 20a and the first nozzle 21 are connected in sequence. In the first working state, the consumables can pass through the first gap 42a, the first channel 20a and the first nozzle 21 in sequence under the action of the first extrusion gear 421 and the third extrusion gear 422 for printing, and the first gap 42a and the first channel 20a are unobstructed, thereby improving the printing efficiency.

[0059] Please also read Figure 6 The second nozzle mechanism 30 includes a second channel 30a and a second nozzle 31. One end of the second channel 30a is connected to the second gap 43a between the second extrusion gear 431 and the fourth extrusion gear 432, and the other end is connected to the second nozzle 31, that is, the second gap 43a, the second channel 30a and the second nozzle 31 are connected in sequence. When the second nozzle mechanism 30 is working, the consumables pass through the second gap 43a, the second channel 30a and the second nozzle 31 in sequence under the action of the second extrusion gear 431 and the fourth extrusion gear 432 for printing, and the second gap 43a and the second channel 30a are unobstructed, thereby improving the printing efficiency.

[0060] Please continue reading Figure 4The frame 11 further includes a first base 114 and a second base 115 connected to the first base 114. The first base 114 and the second base 115 are arranged opposite to each other in the first direction XX. An accommodating space 11a is formed between the first base 114 and the second base 115, and the lifting mechanism 50 is accommodated in the accommodating space 11a. The frame 11 further includes a first limiting plate 116, a second limiting plate 117 and a third limiting plate 118 which are arranged in sequence in the second direction ZZ. The first limiting plate 116, the second limiting plate 117 and the third limiting plate 118 are all connected between the first base 114 and the second base 115. The sliding shaft 53 extends along the second direction ZZ, and the second limiting plate 117 has a through hole for the sliding shaft 53 to pass through. The sliding shaft 53 is inserted into the through hole of the second limiting plate 117, and one end of the sliding shaft 53 is arranged on the first limiting plate 116, and the other end is arranged on the third limiting plate 118, so as to be limited between the first limiting plate 116 and the third limiting plate 118. The first reset member 54 is sleeved on the sliding shaft 53 and limited between the first limiting plate 116 and the second limiting plate 117. The first limiting plate 116 has a through hole for the sliding block 522 to pass through. One end of the sliding block 522 is located between the first limiting plate 116 and the second limiting plate 117 and is arranged on the second nozzle mechanism 30, and the other end of the sliding block 522 passes through the through hole of the first limiting plate 116 and extends toward the first trigger member 521. The sliding block 522 is limited between the first limiting plate 116 and the second limiting plate 117. When the printing device 1000 switches between the first working state and the second working state, the sliding block 522 slides along the sliding shaft 53 between the first limiting plate 116 and the second limiting plate 117. In the first working state, the sliding block 522 abuts against the first limiting plate 116, and in the second working state, the sliding block 522 abuts against the second limiting plate 117, so that the second nozzle mechanism 30 can be accurately moved to the first position and the second position, ensuring that the first nozzle mechanism 20 and the second nozzle mechanism 30 will not interfere with the printing model regardless of whether in the first working state or the second working state.

[0061] In some embodiments, please refer to Figure 7 , while continuing to refer to Figure 5, the frame 10 also includes a first rotating shaft 12. The first rotating shaft 12 is connected between the first fixed plate 111 and the second fixed plate 112. The extrusion mechanism 40 also includes a second trigger member 44 and a first swinging member 45. The second trigger member 44 is arranged at one end of the second driving shaft 512 close to the first fixed plate 111. One end of the first swinging member 45 is rotatably arranged at one end of the first rotating shaft 12 close to the first fixed plate 111, and the other end is in contact with the second trigger member 44. The third extrusion gear 422 is rotatably arranged on the first swinging member 45. The second trigger member 44 includes a first driving end 441. The first driving end 441 is used to push the third extrusion gear 422 out of the first extrusion gear 421 when the second driving member 511 drives the second trigger member 44 to rotate until it contacts the first swinging member 45.

[0062] It can be understood that the first driving end 441 is used to push the first swinging member 45 to swing in a direction away from the first extrusion gear 421. The second driving member 511 is used to drive the second triggering member 44 to rotate until the first driving end 441 contacts the first swinging member 45, so that the first driving end 441 pushes the third extrusion gear 422 to disengage from the first extrusion gear 421. The second driving member 511 is also used to drive the second triggering member 44 to rotate until the first driving end 441 is staggered relative to the first swinging member 45, so that the third extrusion gear 422 is meshed with the first extrusion gear 421.

[0063] Specifically, the second trigger member 44 is disposed at one end of the second drive shaft 512 close to the first fixed plate 111. The second trigger member 44 can be fixed on the second drive shaft 512, and can rotate with the second drive shaft 512 when the second drive member 511 drives the second drive shaft 512 to rotate. One end of the first swing member 45 contacts the second trigger member 44, and one end of the first swing member 45 is disposed at one end of the first rotating shaft 12 close to the first fixed plate 111, and the third extrusion gear 422 is disposed on the side of the first swing member 45 facing the first extrusion gear 421. The third extrusion gear 422 corresponds to the first extrusion gear 421 in the third direction YY. The specific position of the third extrusion gear 422 on the first swing member 45 can be determined according to the specific situation, as long as the third extrusion gear 422 can be engaged with or disengaged from the first extrusion gear 421 under the drive of the second drive member 511. The other end of the first swing member 45 extends toward the direction of the first nozzle mechanism 20 and contacts the second trigger member 44. The first driving end 441 is located at one end of the second trigger member 44, and its area is larger than the other end of the second trigger member 44. When the second driving member 511 drives the second trigger member 44 to rotate until the first driving end 441 contacts the first swinging member 45, the first driving end 441 can push the first swinging member 45 to swing in a direction away from the first extrusion gear 421, so that the third extrusion gear 422 disengages from the first extrusion gear 421.

[0064] In some embodiments, please refer to Figure 6 to Figure 7 The extrusion mechanism 40 also includes a third trigger member 46 and a second swinging member 47. The third trigger member 46 is arranged at one end of the second driving shaft 512 close to the second fixed plate 112. One end of the second swinging member 47 is rotatably arranged at one end of the first rotating shaft 12 close to the second fixed plate 112, and the other end is in contact with the third trigger member 46. The fourth extrusion gear 432 is rotatably arranged on the second swinging member 47. The third trigger member 46 includes a second driving end 461. The second driving end 461 is used to push the fourth extrusion gear 432 to disengage from the second extrusion gear 431 when the second driving member 511 drives the third trigger member 46 to rotate until it contacts the second swinging member 47.

[0065] It can be understood that the second driving end 461 is used to push the second swinging member 47 to swing in the direction of the second extrusion gear 431. The second driving member 511 is used to drive the third trigger member 46 to rotate until the second driving end 461 contacts the second swinging member 47, so that the third trigger member 46 pushes the fourth extrusion gear 432 to disengage from the second extrusion gear 431. The second driving member 511 is also used to drive the third trigger member 46 to rotate until the second driving end 461 is staggered relative to the second swinging member 47, so as to drive the fourth extrusion gear 432 to mesh with the second extrusion gear 431.

[0066] Specifically, the third trigger member 46 is disposed at one end of the second drive shaft 512 close to the second fixed plate 112. The third trigger member 46 can be fixed on the second drive shaft 512, and can rotate synchronously with the second drive shaft 512 when the second drive member 511 drives the second drive shaft 512 to rotate. The second swing member 47 corresponds to the third trigger member 46, one end of the second swing member 47 is disposed at one end of the first rotating shaft 12 close to the second fixed plate 112, the fourth extrusion gear 432 is disposed on the side of the second swing member 47 facing the second extrusion gear 431, and the third extrusion gear 422 corresponds to the first extrusion gear 421 in the third direction YY. The specific position of the fourth extrusion gear 432 on the first swing member 45 can be determined according to the specific situation, as long as the fourth extrusion gear 432 can be engaged with or disengaged from the second extrusion gear 431 under the drive of the second drive member 511. The other end of the second swing member 47 extends toward the direction of the second nozzle mechanism 30 and contacts the third trigger member 46. The second driving end 461 is located at one end of the third trigger member 46, and its area is larger than the other end of the third trigger member 46. When the second driving member 511 drives the third trigger member 46 to rotate until the second driving end 461 contacts the second swinging member 47, the second driving end 461 can push the second swinging member 47 to swing in a direction away from the second extrusion gear 431, so that the fourth extrusion gear 432 disengages from the second extrusion gear 431.

[0067] The first trigger member 521 , the third trigger member 46 and the second trigger member 44 are all disposed on the second driving shaft 512 . The first trigger member 521 , the third trigger member 46 and the second trigger member 44 can rotate along with the second driving shaft 512 under the driving action of the second driving member 511 . In the process of switching from the first working state to the second working state, the second driving member 511 drives the second driving shaft 512 to rotate, the second triggering member 44 can rotate to the first driving end 441 to contact the first swinging member 45, so as to push the third extrusion gear 422 to disengage from the first extrusion gear 421, the third triggering member 46 can rotate to the second driving end 461 to stagger relative to the second swinging member 47, so as to reset the third reset member 49 to drive the fourth extrusion gear 432 to mesh with the second extrusion gear 431, and the first triggering member 521 can rotate to the third driving end 5211 to contact the sliding block 522, so as to push the sliding block 522 to slide along the sliding shaft 53 in the direction away from the first triggering member 521, so as to make the second nozzle mechanism 30 move down from the first position to the second position, thereby realizing the process of switching the printing device 1000 from the first working state to the second working state. Please refer to the above embodiment for the process of switching the printing device 1000 from the second working state to the first working state, which will not be repeated here. The second driving member 511 can not only be used to drive the third extrusion gear 422 to engage with or disengage from the first extrusion gear 421, and drive the fourth extrusion gear 432 to engage with or disengage from the second extrusion gear 431, but can also be used to drive the second nozzle mechanism 30 to move downward from the first position to the second position or upward from the second position to the first position, which not only improves the printing efficiency, but also eliminates the need to set up an additional driving mechanism for driving the second nozzle mechanism 30 to move between the second direction ZZ, thereby saving space for the printing device 1000 and further reducing the volume of the printing device 1000.

[0068] The working process of the printing device 1000 provided in the present application is as follows: in the process of switching from the second working state to the first working state, the second driving member 511 drives the second driving shaft 512 to rotate and drives the third trigger member 46, the second trigger member 44 and the first trigger member 521 to rotate, so that the second driving end 461 contacts the second swinging member 47, the first driving end 441 is staggered relative to the first swinging member 45, and the third driving end 5211 is staggered relative to the sliding block 522. When the second driving end 461 contacts the second swinging member 47, the second driving end 461 can push the second swinging member 47. 7 swings in a direction away from the second extrusion gear 431, so that the fourth extrusion gear 432 is separated from the second extrusion gear 431. After the first driving end 441 is staggered relative to the first swinging member 45, the first swinging member 45 swings in a direction toward the first extrusion gear 421, so that the third extrusion gear 422 is meshed with the first extrusion gear 421. After the third driving end 5211 is staggered relative to the sliding block 522, the first reset member 54 resets the second nozzle mechanism 30 from the second position to the first position, so that the printing device 1000 switches from the second working state to the first working state. In the first working state, the first driving member 411 drives the second rotating shaft 13 to rotate through the driving gear 413 and the reduction gear 414, thereby driving the third extrusion gear 422 and the first extrusion gear 421 to rotate. At this time, the consumables can enter the first gap 42a under the drive of the third extrusion gear 422 and the first extrusion gear 421, and are transported to the first nozzle mechanism 20 through the first gap 42a for printing. In the process of switching from the first working state to the second working state, the second driving member 511 drives the second driving shaft 512 to rotate and drives the third trigger member 46, the second trigger member 44 and the first trigger member 521 to rotate, so that the first driving end 441 contacts the first swinging member 45, the second driving end 461 is staggered relative to the second swinging member 47, and the third driving end 5211 contacts the sliding block 522. When the first driving end 441 contacts the first swinging member 45, the first driving end 441 can push the first swinging member 45 to swing in a direction away from the first extrusion gear 421, so that the first driving end 441 can be driven by the first driving end 441. The third extrusion gear 422 is separated from the first extrusion gear 421, and after the second driving end 461 is offset relative to the second swinging member 47, the second swinging member 47 swings toward the direction of the second extrusion gear 431, so that the fourth extrusion gear 432 is meshed with the second extrusion gear 431, and after the third driving end 5211 contacts the sliding block 522, it can push the sliding block 522 to slide along the sliding shaft 53 in the direction away from the first trigger member 521, so that the second nozzle mechanism 30 moves down from the first position to the second position, thereby switching the printing device 1000 from the first working state to the second working state.In the second working state, the first driving member 411 drives the second rotating shaft 13 to rotate through the driving gear 413 and the reduction gear 414, thereby driving the fourth extrusion gear 432 and the second extrusion gear 431 to rotate. At this time, the consumable can enter the second gap 43a driven by the fourth extrusion gear 432 and the second extrusion gear 431, and be transported to the second nozzle mechanism 30 through the second gap 43a for printing.

[0069] In the embodiment of the present application, the second driving member 511 drives one of the third extrusion gear 422 and the fourth extrusion gear 432 to mesh with the corresponding extrusion gear, and the other is disengaged from the corresponding extrusion gear, and drives the second nozzle mechanism 30 to move down from the first position to the second position or from the second position to the first position, and the first driving member 411 drives the two mutually meshing extrusion gears to rotate to convey consumables to the corresponding nozzle mechanism, that is, the extrusion gear of the extrusion mechanism 40 is driven to mesh with or disengage from the corresponding extrusion gear by one driving member, and the second nozzle mechanism 30 is driven to move down from the first position to the second position or from the second position to the first position, and the consumables are conveyed to the corresponding nozzle mechanism by another driving member, thereby saving the number of driving members of the printing device 1000, thereby ensuring that the volume of the printing device 1000 is reduced when the function of the printing device 1000 remains unchanged, and at the same time, the switching efficiency of the nozzle mechanism and the conveying efficiency of the consumables are improved due to the reduction of driving members that need to be controlled in the actual printing process, so that the printing efficiency is improved.

[0070] In some embodiments, the frame 11 further includes a support seat 113. The support seat 113 is connected between the first fixing plate 111 and the second fixing plate 112. The support seat 113, the first fixing plate 111 and the second fixing plate 112 may be an integrally formed structure; of course, the support seat 113, the first fixing plate 111 and the second fixing plate 112 may also be a fixed connection structure, and the support seat 113 may be connected between the first fixing plate 111 and the second fixing plate 112 by welding, screw connection, bolt connection, snap connection, magnetic adsorption connection, etc. The support seat 113 is extended along the first direction XX. The support seat 113 is located on the side of the first fixing plate 111 and the second fixing plate 112 away from the first nozzle mechanism 20 and the second nozzle mechanism 30, and is located on the side of the first rotating shaft 12 away from the first driving shaft 412.

[0071] Please continue reading Figure 5 The extrusion mechanism 40 further includes a second reset member 48. The second reset member 48 is disposed between the first swing member 45 and the support seat 113. The second reset member 48 is used to reset the second trigger member 44 when the first driving end 441 is staggered relative to the first swing member 45 to drive the third extrusion gear 422 to mesh with the first extrusion gear 421.

[0072] Specifically, when the first driving end 441 pushes the first swinging member 45 to separate the third extrusion gear 422 from the first extrusion gear 421, the second reset member 48 is in a compressed state, and the second reset member 48 is compressed between the first swinging member 45 and the support seat 113. In the process of switching from the second working state to the first working state, when the second driving member 511 drives the second triggering member 44 to rotate until the first driving end 441 is staggered relative to the first swinging member 45, the thrust of the first driving end 441 on the first swinging member 45 disappears, and the second reset member 48 restores its elastic deformation. The elastic restoring force generated by the elastic deformation of the second reset member 48 can push the first swinging member 45 to swing toward the first extrusion gear 421, so that the third extrusion gear 422 is meshed with the first extrusion gear 421, thereby switching the printing device 1000 from the second working state to the first working state.

[0073] Please continue reading Figure 6 The extrusion mechanism 40 further includes a third reset member 49. The third reset member 49 is disposed between the second swing member 47 and the support seat 113. The third reset member 49 is used to reset when the third trigger member 46 rotates to the second driving end 461 staggered relative to the second swing member 47 to drive the fourth extrusion gear 432 to mesh with the second extrusion gear 431.

[0074] Specifically, the second driving end 461 pushes the second swinging member 47 to separate the fourth extruding gear 432 from the second extruding gear 431, and the third reset member 49 is in a compressed state. The third reset member 49 is compressed between the second swinging member 47 and the support seat 113. In the process of switching from the first working state to the second working state, the second driving member 511 drives the third trigger member 46 to rotate until the second driving end 461 is staggered relative to the second swinging member 47, and the thrust of the second driving end 461 on the second swinging member 47 disappears, and the third reset member 49 restores the elastic deformation. The elastic restoring force generated by the elastic deformation of the third reset member 49 can push the second swinging member 47 to swing toward the second extruding gear 431, so that the fourth extruding gear 432 is meshed with the second extruding gear 431, thereby switching the printing device 1000 from the first working state to the second working state.

[0075] The second reset member 48 and the third reset member 49 can both generate elastic deformation. The second reset member 48 and the third reset member 49 can be springs, or the second reset member 48 and the third reset member 49 can also be other elastic structures. The specific types of the second reset member 48 and the third reset member 49 can be selected according to actual needs and are not limited here.

[0076] In some embodiments, please refer to Figure 7The first swinging member 45 includes a first contact portion 451, a first abutting portion 452 and a first rotating portion 453. The first abutting portion 452 is connected between the first contact portion 451 and the first rotating portion 453. One end of the first contact portion 451 away from the first abutting portion 452 contacts the second trigger member 44. One end of the first rotating portion 453 away from the first abutting portion 452 is rotatably disposed on the first rotating shaft 12. The second reset member 48 is supported between the first abutting portion 452 and the support seat 113. The third extrusion gear 422 is rotatably disposed on a side of the first rotating portion 453 facing the first extrusion gear 421.

[0077] Specifically, the first contact portion 451 and the first rotating portion 453 are both extended along the second direction ZZ, so that the end of the first contact portion 451 of the first swinging member 45 away from the first abutting portion 452 can contact the second triggering member 44, and the end of the first rotating portion 453 away from the first abutting portion 452 can be rotatably arranged on the first rotating shaft 12. The first abutting portion 452 is extended along the third direction YY, that is, it extends from the end of the first contact portion 451 away from the second triggering member 44 toward the first extrusion gear 421, and the third extrusion gear 422 is rotatably arranged at one end of the first rotating portion 453 close to the first abutting portion 452, and is located on the side of the first rotating portion 453 facing the first extrusion gear 421, so that the third extrusion gear 422 can correspond to the first extrusion gear 421. The first abutting portion 452 has an abutting surface on the side facing the first rotating shaft 12, and one end of the second reset member 48 abuts against the abutting surface of the first abutting portion 452, and the other end is arranged on the support seat 113.

[0078] The first contact portion 451, the first supporting portion 452 and the first rotating portion 453 can be an integrally formed structure; of course, the first contact portion 451, the first supporting portion 452 and the first rotating portion 453 can also be a fixed connection structure, and the first supporting portion 452 can be connected between the first contact portion 451 and the first rotating portion 453 by welding, screw connection, bolt connection, snap connection, magnetic adsorption connection, etc., but the fixed connection method is not limited to this.

[0079] In some embodiments, the second swinging member 47 includes a second contact portion 471, a second abutting portion 472, and a second rotating portion 473. The second abutting portion 472 is connected between the second contact portion 471 and the second rotating portion 473. One end of the second contact portion 471 away from the second abutting portion 472 contacts the third trigger member 46. One end of the second rotating portion 473 away from the second abutting portion 472 is rotatably disposed on the first rotating shaft 12. The third reset member 49 is supported between the second abutting portion 472 and the support seat 113. The fourth extrusion gear 432 is rotatably disposed on the side of the second rotating portion 473 facing the second extrusion gear 431.

[0080] The second contact portion 471 and the second rotating portion 473 are both extended along the second direction ZZ, so that the end of the second rotating portion 473 of the second swinging member 47 away from the second abutting portion 472 can be rotatably arranged on the first rotating shaft 12, and the end of the second contact portion 471 away from the second abutting portion 472 can contact the third triggering member 46. The second abutting portion 472 is extended along the third direction YY, that is, it extends from the end of the second contact portion 471 away from the third triggering member 46 toward the second extrusion gear 431, and the fourth extrusion gear 432 is rotatably arranged at one end of the second rotating portion 473 close to the second abutting portion 472, and is located on the side of the second rotating portion 473 facing the second extrusion gear 431, so that the fourth extrusion gear 432 can correspond to the second extrusion gear 431. The second abutting portion 472 has an abutting surface on the side facing the first rotating shaft 12, and one end of the third reset member 49 abuts on the abutting surface, and the other end is arranged on the support seat 113.

[0081] The second contact portion 471, the second supporting portion 472 and the second rotating portion 473 can be an integrally formed structure; of course, the second contact portion 471, the second supporting portion 472 and the second rotating portion 473 can also be a fixed connection structure, and the second supporting portion 472 can be connected between the second contact portion 471 and the second rotating portion 473 by welding, screw connection, bolt connection, snap connection, magnetic adsorption connection, etc., but the fixed connection method is not limited to this.

[0082] The first swinging member 45 and the second swinging member 47 have reasonable structural designs and small volumes, which can save space in the printing device 1000 , thereby further reducing the volume of the printing device 1000 .

[0083] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A printing device, characterized in that: include: A rack and mounted on the rack: a first nozzle mechanism; a second nozzle mechanism; The extrusion mechanism comprises a first driving assembly and a first extrusion assembly and a second extrusion assembly drivingly connected to the first driving assembly; a lifting mechanism connected to the second nozzle mechanism, the printing device comprising a first working state in which the first nozzle mechanism works and a second working state in which the second nozzle mechanism works, the lifting mechanism being used to drive the second nozzle mechanism to move relative to the first nozzle mechanism, so as to realize the switching of the printing device between the first working state and the second working state; The first driving component is used to drive the first extrusion component to transport consumables to the first nozzle mechanism in the first working state, and is used to drive the second extrusion component to transport consumables to the second nozzle mechanism in the second working state.

2. The printing device according to claim 1, characterized in that The first extrusion assembly includes a first extrusion gear and a third extrusion gear, the second extrusion assembly includes a second extrusion gear and a fourth extrusion gear, the first drive assembly is in driving connection with the first extrusion gear and the second extrusion gear, and is used to drive the first extrusion gear to rotate in the first working state to convey consumables to the first nozzle mechanism, and is used to drive the second extrusion gear to rotate in the second working state to convey consumables to the second nozzle mechanism; Wherein, in the first working state, the third extrusion gear is meshed with the first extrusion gear and the fourth extrusion gear is separated from the second extrusion gear; in the second working state, the fourth extrusion gear is meshed with the second extrusion gear and the third extrusion gear is separated from the first extrusion gear.

3. The printing device according to claim 2, characterized in that The first driving assembly includes a first driving member, a first driving shaft, a driving gear and a reduction gear. The first extrusion gear, the reduction gear and the second extrusion gear are coaxially arranged. One end of the first driving shaft is connected to the first driving member. The driving gear is arranged at the other end of the first driving shaft and meshes with the reduction gear, and is used to drive the reduction gear to rotate to drive the first extrusion gear and the second extrusion gear to rotate, so that the first extrusion gear drives the third extrusion gear to rotate or the second extrusion gear drives the fourth extrusion gear to rotate.

4. The printing device according to claim 2, characterized in that The lifting mechanism includes a second driving member and a second driving shaft connected to the second driving member, the second driving member is used to drive the second driving shaft to drive the second nozzle mechanism to move from the second position to the first position, and drive the third extrusion gear to engage with the first extrusion gear and the fourth extrusion gear to separate from the second extrusion gear, the second driving member is also used to drive the second driving shaft to drive the second nozzle mechanism to move from the first position to the second position, and drive the fourth extrusion gear to engage with the second extrusion gear and the third extrusion gear to separate from the first extrusion gear, so as to realize the switching of the printing device between the first working state and the second working state.

5. The printing device according to claim 4, characterized in that The lifting mechanism also includes a trigger assembly, which is in driving connection with the second driving shaft. The second driving member is used to drive the second driving shaft to drive the trigger assembly to push the second nozzle mechanism downward, so that the second nozzle mechanism moves downward from the first position to the second position, thereby switching the printing device from the first working state to the second working state.

6. The printing device according to claim 5, characterized in that The lifting mechanism includes a sliding shaft, and the trigger assembly includes a first trigger member and a sliding block slidably set on the sliding shaft, the first trigger member is set on the second driving shaft, one end of the sliding block is set on the second nozzle mechanism, and the other end extends toward the first trigger member, and the second driving member is used to drive the first trigger member to rotate so as to abut against the sliding block, and push the sliding block to slide along the sliding shaft in a direction away from the first trigger member, so that the second nozzle mechanism moves down from the first position to the second position, thereby switching the printing device from the first working state to the second working state.

7. The printing device according to claim 5, characterized in that The lifting mechanism further includes a first restoring member, which is connected to the trigger assembly and stores an upward restoring force when the trigger assembly presses downward against the second nozzle mechanism; The second driving member is also used to drive the second driving shaft to release the trigger assembly from supporting the second nozzle mechanism, so that the first resetting member pushes the trigger assembly to move upward, thereby resetting the second nozzle mechanism from the second position to the first position, thereby switching the printing device from the second working state to the first working state.

8. The printing device according to claim 4, characterized in that The frame also includes: The frame includes a first fixing plate and a second fixing plate which are arranged opposite to each other in a first direction; A first rotating shaft, wherein the first rotating shaft is connected between the first fixing plate and the second fixing plate; The extrusion mechanism also includes a second trigger member and a first swing member, the second trigger member is arranged at one end of the second driving shaft close to the first fixed plate, one end of the first swing member is rotatably arranged at one end of the first rotating shaft close to the first fixed plate, and the other end is in contact with the second trigger member, the third extrusion gear is rotatably arranged on the first swing member, the second trigger member includes a first driving end, and the first driving end is used to push the third extrusion gear to disengage from the first extrusion gear when the second driving member drives the second trigger member to rotate until it contacts the first swing member.

9. The printing device according to claim 8, characterized in that The extrusion mechanism also includes a third trigger member and a second swing member, the third trigger member is arranged at one end of the second driving shaft close to the second fixed plate, one end of the second swing member is rotatably arranged at one end of the first rotating shaft close to the second fixed plate, and the other end is in contact with the third trigger member, the fourth extrusion gear is rotatably arranged on the second swing member, the third trigger member includes a second driving end, and the second driving end is used to push the fourth extrusion gear to disengage from the second extrusion gear when the second driving member drives the third trigger member to rotate until it contacts the second swing member.

10. The printing device according to claim 9, characterized in that The frame further comprises a support seat connected between the first fixing plate and the second fixing plate; The extrusion mechanism also includes: a second reset member, disposed between the first swing member and the support seat, the second reset member being used for resetting when the second trigger member rotates to the point where the first driving end is offset relative to the first swing member to drive the third extrusion gear to mesh with the first extrusion gear; A third reset member is disposed between the second swing member and the support seat, and is used for resetting when the third trigger member rotates to the point where the second driving end is offset relative to the second swing member to drive the fourth extrusion gear to engage with the second extrusion gear.

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