Multi-nozzle battery 3D printer

Abstract

The invention relates to the field of battery printing, in particular to a multi-nozzle battery 3D printer which comprises a shell and nozzles. A supporting unit for bearing a printed battery is arranged in the shell, the supporting unit comprises a first supporting block and a second supporting block, a plurality of first supporting edges are evenly arranged on the upper end face of the first supporting block in the length direction of the shell, and a first gap is formed between every two adjacent first supporting edges. A plurality of second supporting edges are evenly arranged on the upper end face of the second supporting block in the length direction of the shell, a second gap exists between every two adjacent second supporting edges, the number of the second supporting edges corresponds to that of the first gaps, and the second supporting edges are movably arranged in the first gaps in the vertical direction; and an air cooling unit for blowing cold air into the first gap or the second gap is arranged on one side of the supporting unit. The probability of edge warping of the printed battery in the printing process is reduced, and the adhesion strength between the printed battery and the supporting belt is reduced.

Description

Technical Field

[0001] The invention relates to the field of battery printing, and in particular to a multi-nozzle battery 3D printer. Background Art

[0002] In the prior art, 3D printing technology has begun to be used to manufacture solar cells, which can effectively solve the problem that traditional solar cell manufacturing is costly and time-consuming; however, in the prior art, relevant technology for 3D printing thin-film solar cells has not yet been disclosed. The main reason is that the printing quality cannot be effectively controlled during the printing process, resulting in the printed thin-film solar cells having low photoelectric conversion efficiency, which in turn leads to low performance of the printed thin-film solar cells, which needs to be solved.

[0003] Chinese patent announcement number CN112706408B discloses a method for 3D printing thin-film solar cells, characterized in that it includes the following steps: Step 1, constructing a 3D printing system; the 3D printing system includes a 3D printer, a detection unit, a host computer and a cloud platform, wherein the 3D printer includes a hot bed, a print nozzle, and a delivery pump, and the delivery pump is respectively connected to the print nozzle and a container for storing slurry through a delivery pipeline; the detection unit includes an image acquisition sensor, a first temperature sensor, a second temperature sensor and a flow rate sensor; the host computer communicates with the 3D printer and the cloud platform respectively; Step 2, setting initial printing parameters through the host computer and transmitting them to the 3D printer, and the 3D printer starts printing according to the printing parameters, and the printing parameters include the output speed of the slurry, the output of the slurry temperature and the temperature of the hot bed; step 3, using the first temperature sensor in the detection unit to detect the real-time temperature of the output slurry, using the flow rate sensor in the detection unit to detect the real-time output speed of the slurry, and using the second temperature sensor in the detection unit to detect the real-time temperature of the hot bed, and transmitting the real-time temperature and real-time output speed to the host computer respectively; at least after each layer of thin-film solar cells is printed, using the image acquisition sensor to collect the image data of the layer, and transmit it to the cloud platform via the host computer; step 4, using the cloud platform to process the image data, identify and calculate the surface roughness data of the printed thin-film solar cells; step 5, the host computer obtains the surface roughness data from the cloud platform, and compares the surface roughness data with the set threshold value; step 6, repeating the above steps 3-5 until printing is completed.

[0004] The above scheme provides a method for printing solar cells. However, no matter which printing method is used, the battery performance after printing needs to be considered. There are many factors that affect battery performance, and the shape of the battery is one of them. When printing the battery, if water cooling is used for cooling, the water channel needs to be distributed in the platform. The initial temperature of the platform is low. Although the printed material can be cooled quickly, it is easy to flanging and falling off, resulting in battery printing deformation. If the traditional air cooling method is used for cooling, the flowing air cannot cool the bottom of the printed battery, and adhesion is easy to occur after printing. Summary of the invention

[0005] In view of the above problems, a multi-nozzle battery 3D printer is provided. By providing a first support block with a plurality of first support edges and a second support block with a plurality of second support edges, the first support edges and the second support edges are arranged in a staggered manner. At the beginning of printing, the bottom of the printed battery is supported by the first support end face formed at the upper end of the first support edge and the second support end face formed at the upper end of the second support edge. After the lowest layer of the printed battery is printed, the first support end face and the second support end face are staggered and lifted. While the first support end face and the second support end face are staggered and lifted, there is always a support end face at the rated height and supports the printed battery, thereby ensuring that the printed battery during printing will not move in the vertical direction. At the same time, since no pipeline for storing coolant is provided on the support belt, the initial temperature of the support belt will not be low, thereby reducing the probability of warping of the printed battery during printing. At the same time, the bottom of the printed battery is cooled in time through the first gap and the second gap, thereby reducing the adhesion strength between the printed battery and the support belt.

[0006] In order to solve the problems of the prior art, the present invention provides a multi-nozzle battery 3D printer, comprising a shell and a nozzle arranged on the upper part of the shell; a support unit for receiving the printed battery is arranged in the shell, the support unit comprises a first support block and a second support block, a plurality of first support edges are evenly arranged on the upper end surface of the first support block along the length direction of the shell, a first gap exists between adjacent first support edges, a plurality of second support edges are evenly arranged on the upper end surface of the second support block along the length direction of the shell, a second gap exists between adjacent second support edges, the number of the second support edges corresponds to the number of the first gaps, and the second support edges are arranged in the first gap in a vertical direction, the upper end surfaces of all the first support edges constitute the first support end surface, and the upper end surfaces of all the second support edges constitute the second support end surface, before the lowest layer of the printed battery is printed, the first support end surface and the second support end surface are coplanar, after the lowest layer of the printed battery is printed, the first support end surface and the second support end surface are alternately raised and lowered and the first gap and the second gap are alternately exposed, and a wind cooling unit for blowing cold air into the first gap or the second gap is arranged on one side of the support unit.

[0007] Preferably, when the lowest layer of the printed battery is not completed, the height of the first support end face is called the rated height, and when the first support end face and the second support end face are alternately raised and lowered, the highest position reached by the first support end face when it is raised and lowered and the highest position reached by the second support end face when it is raised and lowered are both the same as the rated height, and there is a moment when both the first support end face and the second support end face are at the rated height.

[0008] Preferably, a support belt is provided on the external rotating sleeve of the first support block and the second support block, the upper end surface of the support belt is horizontal and located above the first support end surface and the second support end surface, the first support end surface and the second support end surface support the printed battery through the support belt, and the support belt is in a stopped rotating state during the printing process.

[0009] Preferably, a cleaning unit for cleaning the outer surface of the support belt is provided below the support belt, and the cleaning unit includes a cleaning roller arranged on one side of the support belt and rotating along the width direction of the outer shell, and a second rotating drive for driving the cleaning roller to rotate is provided at the end of the cleaning roller.

[0010] Preferably, a lifting unit is provided on one side of the first support block, the lifting unit comprises a first lifting roller rotatably provided on the side of the first support block along the width direction of the shell, a second lifting roller is rotatably provided on the horizontal side of the first lifting roller, the second lifting roller is provided on the side wall of the second support block, a lifting block is movably provided at the lower part of the first lifting roller along the length direction of the shell, the first lifting roller and the second lifting roller are rollingly matched with the upper end face of the uniform lifting block, the upper end face of the lifting block is sequentially provided with a coplanar area and a lifting area along the length direction of the shell, the end face of the coplanar area is horizontal, and the end face of the lifting area is undulating.

[0011] Preferably, a bracket is provided at the lower part of the lifting block, a first driving unit is provided on one side of the bracket, the first driving unit drives the bracket to move along the length direction of the shell, and the lifting block moves along the length direction of the shell synchronously with the bracket.

[0012] Preferably, a second driving unit for driving the lifting block to move along the length direction of the shell is provided on the bracket, and the second driving unit includes a rack fixedly arranged on the side of the lifting block, and an arc plate is arranged below the rack, and a plurality of meshing teeth are evenly provided on the outer circumference of the arc plate, and the arc plate is meshed with the rack through the meshing teeth, and a swing arm is fixedly arranged on one side of the inner ring of the arc plate along the radial direction of the arc plate, and one end of the swing arm away from the arc plate is hinged to the bracket, and a slide groove is provided on the swing arm along the length direction of the swing arm, and a slider is slidably arranged in the slide groove, and a rotating disk is rotatably arranged on one side of the slider, and a hinge column is provided on the rotating disk, and the hinge column extends into the slider and is hinged to the slider, and a fourth rotation driver for driving the rotating disk to rotate is provided at one end of the rotating disk.

[0013] Preferably, a limiting unit is provided at the lower part of the swing arm, and the limiting unit includes a limiting fork arranged on the bracket and movable along the vertical direction, and the limiting fork is plugged into and cooperates with the swing arm when it rises to the highest position, and is separated from the swing arm when it is at the lowest position.

[0014] Preferably, an activation unit is arranged between the output end of the fourth rotary drive and the rotating disk, the activation unit includes an activation ring, the axis of the activation ring is colinear with the axis of the rotating disk, a trigger button is arranged at the bottom of the inner ring of the activation ring, a trigger rod which rotates synchronously with the rotating disk is arranged in the activation ring, the trigger rod presses the trigger button when rotating in the activation ring, and before the lifting zone and the coplanar zone are switched, when the trigger button is pressed and activated, the fourth rotary drive stops running and the limit fork rises.

[0015] Preferably, the air cooling unit includes a fan arranged on one side of the supporting unit, an evaporator is arranged on one side of the fan, a connecting pipe is arranged between the fan and the evaporator, and the fan discharges the cold air at the evaporator into the first gap and the second gap through the connecting pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a first support block with a plurality of first support edges and a second support block with a plurality of second support edges, so that the first support edges and the second support edges are arranged in a staggered manner. When printing is just started, the first support end face formed at the upper end of the first support edge and the second support end face formed at the upper end of the second support edge jointly support the bottom of the printed battery. After the lowest layer of the printed battery is printed, the first support end face and the second support end face are staggered and lifted. While the first support end face and the second support end face are staggered and lifted, there is always one support end face at the rated height and supports the printed battery, thereby ensuring that the printed battery during printing will not move in the vertical direction. At the same time, since no pipeline for storing coolant is provided on the support belt, the initial temperature of the support belt will not be low, thereby reducing the probability of warping of the printed battery during printing. At the same time, the bottom of the printed battery is timely cooled by the first gap and the second gap, thereby reducing the adhesion strength between the printed battery and the support belt, thereby facilitating the subsequent removal of the printed battery and not easily causing damage to the battery.

[0018] 2. By setting a support belt, the support belt drives the printed battery to move along the length direction of the shell after printing. When the support belt carrying the printed battery moves to the position of the driving wheel, it will begin to bend. The bending support belt begins to peel off from one side of the printed battery. Although the bottom of the printed battery is cooled by the air cooling unit, it is still impossible to ensure that the printed battery will be partially adhered to the support belt. The bending and peeling method of the support belt ensures that the printed battery will not be damaged during the peeling process. At the same time, the support belt can also prevent the printing material from penetrating into the gap between the first support edge and the second support edge under the action of gravity when printing the lowest layer of the printed battery. The flatness of the bottom of the printed battery is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a multi-nozzle battery 3D printer of the present invention.

[0020] Figure 2 It is a cutaway stereoscopic schematic diagram of a multi-nozzle battery 3D printer of the present invention when a first supporting end surface and a second supporting end surface are in an alternating lifting and lowering state.

[0021] Figure 3 The invention is a multi-nozzle battery 3D printer Figure 2 A local enlarged schematic diagram of point A in the middle.

[0022] Figure 4 This is a three-dimensional schematic diagram of a multi-nozzle battery 3D printer of the present invention after removing the outer shell Figure 1 .

[0023] Figure 5 The invention is a multi-nozzle battery 3D printer Figure 4 A local enlarged schematic diagram of point B in the middle.

[0024] Figure 6 It is a cutaway stereoscopic schematic diagram of a multi-nozzle battery 3D printer of the present invention when a first supporting end surface and a second supporting end surface are in a coplanar state.

[0025] Figure 7 It is a cutaway stereoscopic schematic diagram of a multi-nozzle battery 3D printer of the present invention with the outer shell removed.

[0026] Figure 8 The invention is a multi-nozzle battery 3D printer Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0027] Fig. 9 The invention is a multi-nozzle battery 3D printer Figure 7 A partial enlarged schematic diagram of point D in the middle.

[0028] Fig.10This is a three-dimensional schematic diagram of a multi-nozzle battery 3D printer of the present invention after removing the outer shell Figure 2 .

[0029] Fig.11 The invention is a multi-nozzle battery 3D printer Fig.10 A partial enlarged schematic diagram of point E in the middle.

[0030] Fig.12 It is a three-dimensional schematic diagram of a multi-nozzle battery 3D printer of the present invention with the outer shell and the bracket removed.

[0031] Fig.13 It is a cutaway stereoscopic schematic diagram of a multi-nozzle battery 3D printer of the present invention with a shell and a bracket removed.

[0032] The numbers in the figure are:

[0033] 1. Shell; 2. Support unit; 21. First support block; 211. First support ridge; 22. Second support block; 221. Second support ridge; 23. Support belt; 231. Drive wheel; 232. First rotary driver; 24. Cleaning unit; 241. Cleaning roller; 242. Second rotary driver; 25. Lifting unit; 251. First lifting roller; 252. Second lifting roller; 253. Lifting block; 254. First drive unit; 2541. Third rotary driver; 2542. First threaded rod; 255. Bracket; 25 6. Second driving unit; 2561. Rack; 2562. Arc plate; 2563. Swing arm; 2564. Slider; 2565. Rotating disk; 2566. Fourth rotary driver; 26. Limiting unit; 261. Limiting fork; 262. Pushing block; 263. Inclined groove; 264. Second threaded rod; 265. Fifth rotary driver; 27. Activation unit; 271. Activation ring; 272. Trigger button; 273. Trigger rod; 3. Printing battery; 4. Air cooling unit; 41. Fan; 42. Connecting pipe; 43. Evaporator. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Reference Figure 1 , Figure 4 and Figure 6A multi-nozzle battery 3D printer, comprising a housing 1 and a nozzle arranged on the upper part of the housing 1; a support unit 2 for receiving a printed battery 3 is arranged in the housing 1, the support unit 2 comprises a first support block 21 and a second support block 22, a plurality of first support edges 211 are evenly arranged on the upper end surface of the first support block 21 along the length direction of the housing 1, a first gap exists between adjacent first support edges 211, a plurality of second support edges 221 are evenly arranged on the upper end surface of the second support block 22 along the length direction of the housing 1, a second gap exists between adjacent second support edges 221, and a plurality of second support edges 221 are evenly arranged on the upper end surface of the second support block 22 along the length direction of the housing 1 21 corresponds to the number of the first gap, and the second supporting edge 221 is moved in the first gap along the vertical direction, the upper end faces of all the first supporting edges 211 constitute the first supporting end face, and the upper end faces of all the second supporting edges 221 constitute the second supporting end face. Before the printing of the lowest layer of the printed battery 3 is completed, the first supporting end face and the second supporting end face are coplanar. After the printing of the lowest layer of the printed battery 3 is completed, the first supporting end face and the second supporting end face are alternately raised and lowered and alternately expose the first gap and the second gap. A wind cooling unit 4 for blowing cold air into the first gap or the second gap is provided on one side of the support unit 2.

[0036] In the process of printing the printed battery 3, there is a common problem with most 3D printers when printing, that is, the printed battery 3 is easy to stick to the platform. In this article, the platform is improved, so the platform supporting the printed battery 3 is referred to as the support unit 2. One of the reasons for the sticking is the temperature of the platform. In the process of printing, if a water-cooled platform is used, although the printed battery 3 can be quickly cooled, the water-cooled platform needs to integrate the water channel into the platform, so that there will be residual coolant in the water channel in the platform, resulting in a decrease in the temperature of the platform, and the heat absorption is fast. The initial temperature of the platform is low, and when the lowest layer of the printed battery 3 is printed, it is easy to warp, slip or shrink the material quickly, which leads to the shape of the printed battery 3 being out of shape, and finally the performance of the printed battery 3 is affected. If a traditional air-cooled printer is used to dissipate heat for the printed battery 3, the flowing air cannot act on the bottom of the printed battery 3. Although the printed battery 3 can be quickly shaped, it is easy to stick to the platform. In this way, it will still be damaged in the process of removing the printed battery 3, resulting in an increase in the defective rate.

[0037] In order to avoid the above situation, the platform is improved, that is, the support unit 2 in this article, so that the initial temperature of the support unit 2 will not be too low, and the bottom of the printed battery 3 can be cooled after the lowest layer of the printed battery 3 is printed, which overcomes the disadvantage that the traditional air-cooled printer cannot cool the bottom of the printed battery 3. The specific structure and working steps of the support unit 2 are as follows:

[0038] When the lowest layer of the printed battery 3 is not completed, the height of the first support end face is called the rated height, and when the first support end face and the second support end face are alternately raised and lowered, the highest position reached by the first support end face when raised and lowered and the highest position reached by the second support end face when raised and lowered are both the same as the rated height. At the beginning of printing, the first support end face formed by the first support edge 211 and the second support end face formed by the second support edge 221 are coplanar, and at this time, the heights of the first support end face and the second support end face are both at the highest position. At this time, the nozzle sprays the printing material on the upper part of the first support end face and the second support end face. At this time, the first support end face and the second support end face are coplanar to ensure the flatness of the bottom of the printed battery 3. A support belt 23 is also sleeved on the periphery of the first support end face and the second support end face. The first support end face and the second support end face support the printed battery 3 through the support belt 23. When the lowest layer of the printed battery 3 is printed, the printed battery 3 located on the support belt 23 has not been cooled yet. At this time, the first support end face and the second support end face begin to rise and fall alternately, and the air cooling unit 4 is started at the same time. If the first support end face is maintained at the rated height and the second support end face begins to descend, the first gap is exposed, and the air cooling unit 4 blows cold air into the first gap. The cold air flowing in the first gap The air cools down the support belt 23. When the second support end surface drops to the lowest position, it starts to rise. The first gap gradually shrinks due to the rise of the second support end surface. When the second support end surface rises to the highest position, the first gap completely disappears, the first support end surface starts to drop, and the second gap gradually becomes larger. When the first support end surface drops to the lowest position, the vertical cross-section of the second gap is the largest. The cold air blown out by the air cooling unit 4 cools down the support belt 23 through the alternating first gap and second gap, thereby realizing the cooling of the bottom of the printed battery 3. At the same time, since there is no pipeline for storing coolant in the support belt 23, the initial temperature of the support belt 23 will not be too low, reducing the possibility of warping of the printed battery 3 during the printing process. At the same time, the bottom of the printed battery 3 is timely cooled through the first gap and the second gap, reducing the adhesion strength between the printed battery 3 and the support belt 23, which is convenient for the subsequent removal of the printed battery and is not easy to cause damage to the battery.

[0039] Reference Figure 1-Figure 13 : When the lowest layer of the printed battery 3 is not completed, the height of the first support end face is called the rated height. When the first support end face and the second support end face are alternately raised and lowered, the highest position reached by the first support end face when raised and lowered and the highest position reached by the second support end face when raised and lowered are both the same as the rated height, and there is a moment when both the first support end face and the second support end face are at the rated height.

[0040] The moment when the first supporting end face and the second supporting end face are both at the rated height refers to when the lowest layer of the printed battery 3 is printed, if the first supporting end face is at the highest position, the second supporting end face is in an ascending state, and the first supporting end face will not descend before the second supporting end face rises to the highest position, thereby ensuring that the printed battery 3 supported by the first supporting end face and the second supporting end face will not rise or fall during the printing process due to the staggered movement of the first supporting end face and the second supporting end face in the vertical direction, thereby avoiding affecting the printing process and ensuring that the spatial position of the printed battery 3 will not change during the printing process.

[0041] Reference Fig.10 A support belt 23 is rotatably sleeved outside the first support block 21 and the second support block 22. The upper end surface of the support belt 23 is horizontal and located above the first support end surface and the second support end surface. The first support end surface and the second support end surface support the printed battery 3 through the support belt 23. The support belt 23 is in a stopped rotating state during the printing process.

[0042] Two driving wheels 231 are arranged in the inner ring of the support belt 23 along the length direction of the outer shell 1. The two driving wheels 231 are respectively matched with the internal transmission of the support belt 23. A first rotating driver 232 for driving the driving wheel 231 is provided at one end of one of the driving wheels 231. The support belt 23 directly supports the printed battery 3, and the first support end face and the second support end face provide support force for the support belt 23. This is because the support belt 23 is made of flexible material. If the first support end face and the second support end face are not provided at the lower part of the support belt 23 for support, the support belt 23 supporting the printed battery 3 will bend downward, thereby causing the printed battery 3 to be deformed. After the first support end face and the second support end face are provided, the above situation can be avoided. The first rotating driver 232 is preferably a servo motor. By providing the support belt 23, the support belt 23 drives the printed battery 3 to move along the length direction of the shell 1 after printing is completed. When the support belt 23 supporting the printed battery 3 moves to the position of the driving wheel 231, it will begin to bend. The bending support belt 23 begins to peel off from one side of the printed battery 3. Although the bottom of the printed battery 3 is cooled by the air cooling unit 4, it is still impossible to ensure that the printed battery 3 will be partially adhered to the support belt 23. The bending and peeling method of the support belt 23 ensures that the printed battery 3 will not be damaged during the peeling process. At the same time, the support belt 23 can also prevent the printing material from penetrating into the gap between the first supporting edge 211 and the second supporting edge 221 under the action of gravity when printing the lowest layer of the printed battery 3, thereby ensuring the flatness of the bottom of the printed battery 3.

[0043] Reference Figure 4 and Fig.10A cleaning unit 24 for cleaning the outer surface of the supporting belt 23 is arranged below the supporting belt 23. The cleaning unit 24 includes a cleaning roller 241 arranged on one side of the supporting belt 23 and rotating along the width direction of the outer shell 1. A second rotating driver 242 for driving the cleaning roller 241 to rotate is arranged at the end of the cleaning roller 241.

[0044] The second rotary driver 242 is preferably a servo motor, which drives the cleaning roller 241 to rotate, so that the cleaning roller 241 can clean the residual printing material on the support belt 23, thereby ensuring the cleanliness of the outer surface of the support belt 23.

[0045] Reference Fig.12 and Fig.13 A lifting unit 25 is arranged on one side of the first support block 21, and the lifting unit 25 includes a first lifting roller 251 which is rotatably arranged on the side of the first support block 21 along the width direction of the shell 1, and a second lifting roller 252 is rotatably arranged on the horizontal side of the first lifting roller 251, and the second lifting roller 252 is arranged on the side wall of the second support block 22, and a lifting block 253 is movably arranged at the lower part of the first lifting roller 251 along the length direction of the shell 1, and the first lifting roller 251 and the second lifting roller 252 are evenly rollingly matched with the upper end surface of the lifting block 253, and the upper end surface of the lifting block 253 is sequentially provided with a coplanar area and a lifting area along the length direction of the shell 1, the end surface of the coplanar area is horizontal, and the end surface of the lifting area is undulating.

[0046] Reference Figure 4 and Figure 6 A bracket 255 is provided at the lower part of the lifting block 253, and a first driving unit 254 is provided on one side of the bracket 255. The first driving unit 254 drives the bracket 255 to move along the length direction of the shell 1, and the lifting block 253 moves along the length direction of the shell 1 synchronously with the bracket 255.

[0047] The first driving unit 254 includes a first threaded rod 2542 that penetrates the bracket 255 along the length direction of the shell 1. The first threaded rod 2542 is threadedly matched with the bracket 255. A third rotation driver 2541 for driving the first threaded rod 2542 to rotate is provided on one side of the first threaded rod 2542. The third rotation driver 2541 is preferably a servo motor. For the compactness of the structure, the third rotation driver 2541 and the first threaded rod 2542 are meshedly connected by two transmission gears, thereby realizing the movement of the bracket 255 along the length direction of the shell 1.

[0048] The bracket 255 drives the lifting block 253 to move in the horizontal direction, thereby realizing the switching of the coplanar area and the lifting area on the lifting block 253. When the lifting block 253 switches to the coplanar area, the heights of the first lifting roller 251 and the second lifting roller 252 are always the same. When the bracket 255 drives the lifting block 253 to switch to the lifting area, the bracket 255 stops moving, and the lifting block 253 reciprocates on the bracket 255 in the horizontal direction, so that the first lifting roller 251 and the second lifting roller 252 are staggered and lifted under the action of the undulating end surface of the lifting area.

[0049] Reference Figure 5 , Fig. 9 , Fig.11 and Fig.12 The bracket 255 is provided with a second driving unit 256 for driving the lifting block 253 to move along the length direction of the housing 1. The second driving unit 256 includes a rack 2561 fixedly arranged on the side of the lifting block 253. An arc plate 2562 is arranged below the rack 2561. A plurality of meshing teeth are evenly arranged on the outer circumference of the arc plate 2562. The arc plate 2562 meshes with the rack 2561 through the meshing teeth. A swing arm 2562 is fixedly arranged on one side of the inner ring of the arc plate 2562 along the radial direction of the arc plate 2562. 63. One end of the swing arm 2563 away from the arc plate 2562 is hinged on the bracket 255. A sliding groove is opened on the swing arm 2563 along the length direction of the swing arm 2563. A slider 2564 is slidably arranged in the sliding groove. A rotating disk 2565 is rotatably arranged on one side of the slider 2564. A hinge column is arranged on the rotating disk 2565, and the hinge column extends into the slider 2564 and is hinged with the slider 2564. A fourth rotation driver 2566 for driving the rotating disk 2565 to rotate is arranged at one end of the rotating disk 2565.

[0050] When the lifting block 253 is driven by the bracket 255 to switch to the lifting zone, the lifting block 253 can move back and forth on the bracket 255 in the horizontal direction. It is worth noting that the switching between the lifting zone and the coplanar zone can only be achieved by moving the bracket 255.

[0051] Reference Figure 3 , Figure 6 and Fig.13 A limit unit 26 is provided at the lower part of the swing arm. The limit unit 26 includes a limit fork 261 which is arranged on the bracket 255 and moves in the vertical direction. When the limit fork 261 rises to the highest position, it is plugged into the swing arm. When the limit fork 261 is at the lowest position, it is separated from the swing arm.

[0052] A push block 262 is provided at the lower part of the limit fork 261 to move along the length direction of the housing 1. An inclined groove 263 is provided on the push block 262. One side of the push block 262 extends into the inclined groove 263 and slides with the inclined groove 263. The limit unit 26 also includes a second threaded rod 264 that penetrates the bracket 255 along the length direction of the housing 1. The second threaded rod 264 is threadedly engaged with the bracket 255. A fifth rotation driver 265 for driving the second threaded rod 264 to rotate is provided at the end of the second threaded rod 264. By lifting and lowering the limit fork 261, the swing arm is limited when the limit fork 261 rises. The swing arm after limitation is in a vertical state, so that the swing arm can drive the rack 2561 to move stably along the length direction of the housing 1, ensuring the stability when the bracket 255 drives the lifting block 253 to switch between the coplanar area and the lifting area.

[0053] Reference Figure 8 and Fig.11 An activation unit 27 is arranged between the output end of the fourth rotation driver 2566 and the rotating disk 2565, and the activation unit 27 includes an activation ring 271. The axis of the activation ring 271 is colinear with the axis of the rotating disk 2565. A trigger button 272 is arranged at the bottom of the inner ring of the activation ring 271, and a trigger rod 273 that rotates synchronously with the rotating disk 2565 is arranged in the activation ring 271. The trigger rod 273 presses the trigger button 272 when rotating in the activation ring 271. Before the lifting area and the coplanar area are switched, when the trigger button 272 is pressed and activated, the fourth rotation driver 2566 stops running and the limit fork 261 rises.

[0054] The activation ring 271 is fixedly arranged on the bracket 255. When the bracket 255 is ready to move so that the lifting block 253 switches between the coplanar area and the lifting area, the fourth rotary driver 2566 is in operation, and the swing arm is still in a swinging state. The rotating disk 2565 drives the trigger rod 273 to rotate synchronously. At this time, when the trigger rod 273 triggers the trigger button 272 on the activation ring 271, the fourth rotary driver 2566 stops rotating, and the fifth rotary driver 265 starts. At this time, the push block 262 pushes the limit fork 261 to rise through the inclined groove 263, and the limit fork 261 inserts and limits the swing arm 2563, so that the swing arm 2563 no longer rotates, avoiding relative sliding between the lifting block 253 and the bracket 255 when the bracket 255 moves along the length direction of the housing 1, thereby causing the coplanar area and the lifting area to be unable to switch accurately. It is worth noting that when the lifting block 253 is switched to the lifting area, the limit fork 261 drops, thereby ensuring that the swing arm can swing normally.

[0055] Reference Fig.13The air cooling unit 4 includes a fan 41 arranged on one side of the support unit 2, an evaporator 43 is arranged on one side of the fan 41, a connecting pipe 42 is arranged between the fan 41 and the evaporator 43, and the fan 41 discharges the cold air at the evaporator 43 into the first gap and the second gap through the connecting pipe 42.

[0056] Working principle: at the beginning of printing, the first support end face formed by the first support edge 211 and the second support end face formed by the second support edge 221 are coplanar, and at this time the heights of the first support end face and the second support end face are both at the highest position, and the nozzle sprays the printing material on the upper part of the first support end face and the second support end face, and at this time the first support end face and the second support end face are coplanar to ensure the flatness of the bottom of the printed battery 3, and a support belt 23 is also sleeved on the periphery of the first support end face and the second support end face, and the first support end face and the second support end face support the printed battery 3 through the support belt 23, when the lowest layer of the printed battery 3 is printed, the printed battery 3 located on the support belt 23 has not been cooled, and at this time the first support end face and the second support end face begin to rise and fall alternately, and at the same time the air cooling unit 4 is started, if the first support end face is maintained at the rated height and the second support end face begins to descend, then the first gap is exposed, and the air cooling unit 4 blows cold air into the first gap, and the flow in the first gap The moving cold air cools the support belt 23. When the second support end surface drops to the lowest position, it starts to rise. The first gap gradually shrinks due to the rise of the second support end surface. When the second support end surface rises to the highest position, the first gap completely disappears, the first support end surface starts to drop, and the second gap gradually becomes larger. When the first support end surface drops to the lowest position, the vertical cross-section of the second gap is the largest. The cold air blown out by the air cooling unit 4 cools the support belt 23 through the alternating first gap and the second gap, thereby realizing the cooling of the bottom of the printed battery 3. At the same time, since there is no pipeline for storing coolant in the support belt 23, the initial temperature of the support belt 23 will not be too low, thereby reducing the probability of warping of the printed battery 3 during the printing process. At the same time, the bottom of the printed battery 3 is timely cooled through the first gap and the second gap, thereby reducing the adhesion strength between the printed battery 3 and the support belt 23, which is convenient for the subsequent removal of the printed battery and is not easy to cause damage to the battery.

[0057] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A multi-nozzle battery 3D printer, comprising a housing (1) and a nozzle arranged on the upper part of the housing (1); It is characterized in that A support unit (2) for receiving a printed battery (3) is arranged in the housing (1), the support unit (2) comprising a first support block (21) and a second support block (22), a plurality of first support edges (211) are evenly arranged on the upper end surface of the first support block (21) along the length direction of the housing (1), a first gap exists between adjacent first support edges (211), a plurality of second support edges (221) are evenly arranged on the upper end surface of the second support block (22) along the length direction of the housing (1), a second gap exists between adjacent second support edges (221), and the second support edges (221) and the first gaps are spaced apart from each other. The numbers correspond to each other, and the second supporting edges (221) are arranged in the first gap by moving in the vertical direction, the upper end faces of all the first supporting edges (211) constitute the first supporting end face, and the upper end faces of all the second supporting edges (221) constitute the second supporting end face. Before the lowest layer of the printed battery (3) is printed, the first supporting end face and the second supporting end face are coplanar. After the lowest layer of the printed battery (3) is printed, the first supporting end face and the second supporting end face are alternately raised and lowered and alternately expose the first gap and the second gap. A wind cooling unit (4) for blowing cold air into the first gap or the second gap is arranged on one side of the supporting unit (2).

2. A multi-nozzle battery 3D printer according to claim 1, characterized in that: When the lowest layer of the printed battery (3) is not completely printed, the height of the first support end face is called the rated height, and when the first support end face and the second support end face are alternately raised and lowered, the highest position reached by the first support end face when raised and lowered and the highest position reached by the second support end face when raised and lowered are both the same as the rated height, and there is a moment when both the first support end face and the second support end face are at the rated height.

3. A multi-nozzle battery 3D printer according to claim 1, characterized in that: A support belt (23) is rotatably sleeved outside the first support block (21) and the second support block (22); the upper end surface of the support belt (23) is horizontal and located above the first support end surface and the second support end surface; the first support end surface and the second support end surface support the printed battery (3) through the support belt (23); and the support belt (23) is in a stopped rotation state during the printing process.

4. A multi-nozzle battery 3D printer according to claim 3, characterized in that: A cleaning unit (24) for cleaning the outer surface of the supporting belt (23) is arranged below the supporting belt (23), and the cleaning unit (24) comprises a cleaning roller (241) arranged on one side of the supporting belt (23) and rotatable along the width direction of the outer shell (1), and a second rotating driver (242) for driving the cleaning roller (241) to rotate is arranged at the end of the cleaning roller (241).

5. A multi-nozzle battery 3D printer according to claim 1, characterized in that: A lifting unit (25) is arranged on one side of the first support block (21), the lifting unit (25) comprising a first lifting roller (251) rotatably arranged on the side of the first support block (21) along the width direction of the shell (1), a second lifting roller (252) rotatably arranged on the horizontal side of the first lifting roller (251), the second lifting roller (252) being arranged on the side wall of the second support block (22), a lifting block (253) being movably arranged at the lower part of the first lifting roller (251) along the length direction of the shell (1), the first lifting roller (251) and the second lifting roller (252) rollingly cooperate with the upper end face of the lifting block (253), the upper end face of the lifting block (253) being sequentially provided with a coplanar area and a lifting area along the length direction of the shell (1), the end face of the coplanar area being horizontal, and the end face of the lifting area being undulating.

6. A multi-nozzle battery 3D printer according to claim 5, characterized in that: A bracket (255) is provided at the lower part of the lifting block (253), and a first driving unit (254) is provided on one side of the bracket (255). The first driving unit (254) drives the bracket (255) to move along the length direction of the outer shell (1), and the lifting block (253) moves synchronously with the bracket (255) along the length direction of the outer shell (1).

7. A multi-nozzle battery 3D printer according to claim 5, characterized in that: A second driving unit (256) for driving the lifting block (253) to move along the length direction of the housing (1) is arranged on the bracket (255), and the second driving unit (256) comprises a rack (2561) fixedly arranged on the side of the lifting block (253), an arc plate (2562) is arranged below the rack (2561), a plurality of meshing teeth are evenly arranged on the outer circumference of the arc plate (2562), the arc plate (2562) meshes with the rack (2561) through the meshing teeth, and a swing arm (2562) is fixedly arranged on one side of the inner ring of the arc plate (2562) along the radial direction of the arc plate (2562). 3), one end of the swing arm (2563) away from the arc plate (2562) is hinged on the bracket (255), a slide groove is provided on the swing arm (2563) along the length direction of the swing arm (2563), a slider (2564) is slidably provided in the slide groove, a rotating disk (2565) is rotatably provided on one side of the slider (2564), a hinge column is provided on the rotating disk (2565), and the hinge column extends into the slider (2564) and is hinged to the slider (2564), and a fourth rotation driver (2566) for driving the rotating disk (2565) to rotate is provided at one end of the rotating disk (2565).

8. A multi-nozzle battery 3D printer according to claim 7, characterized in that: A limiting unit (26) is provided at the lower part of the swing arm, and the limiting unit (26) comprises a limiting fork (261) arranged on the bracket (255) and movable in the vertical direction, and the limiting fork (261) is plugged into and matched with the swing arm when it rises to the highest position, and is separated from the swing arm when it is at the lowest position.

9. A multi-nozzle battery 3D printer according to claim 8, characterized in that: An activation unit (27) is arranged between the output end of the fourth rotary driver (2566) and the rotating disk (2565), and the activation unit (27) includes an activation ring (271). The axis of the activation ring (271) is colinear with the axis of the rotating disk (2565). A trigger button (272) is arranged at the bottom of the inner ring of the activation ring (271). A trigger rod (273) that rotates synchronously with the rotating disk (2565) is arranged in the activation ring (271). When the trigger rod (273) rotates in the activation ring (271), the trigger button (272) is pressed. Before the lifting zone and the coplanar zone are switched, when the trigger button (272) is pressed and activated, the fourth rotary driver (2566) stops running and the limit fork (261) rises.

10. A multi-nozzle battery 3D printer according to claim 1, characterized in that: The air cooling unit (4) comprises a fan (41) arranged on one side of the support unit (2); an evaporator (43) is arranged on one side of the fan (41); a connecting pipe (42) is arranged between the fan (41) and the evaporator (43); the fan (41) discharges cold air at the evaporator (43) into the first gap and the second gap through the connecting pipe (42).

Images