CN207266590U - New chocolate 3D printer - Google Patents

Abstract

A kind of new chocolate 3D printer, including rack, chocolate printhead system, 3D moving mechanisms and printing auxiliary system, chocolate printhead system therein is fixing device, with reference to the smart design of 3D moving mechanisms, the problem of following printhead to move without the concern for feeding pipe, also without considering that feeding pipe temperature maintains, avoid feeding pipe easily block, user's puzzlement of difficult cleaning etc.；Export materials behavior at the same time and output quantity is accurate, accomplish to instructing real-time response, so as to reach the effect for improving printing precision.The chocolate raw material that 3D moving mechanisms make to print accumulates more perfect solid shape.

Description

New chocolate 3D printer

Technical field

A kind of 3D printer is the utility model is related to, especially a kind of chocolate 3D printer.

Background technology

With scientific and technological progress, occur a variety of chocolate 3D printing equipment in the prior art both at home and abroad, these equipment Technical characterstic is mainly comprising following a kind of or more than one：

(1) chocolate printhead moves together on telecontrol equipment.

(2) syringe-type chocolate extrusion device (including without and with continuous feeding device) is applied.There is correlation in the country The patent document of device, such as Authorization Notice No.：204104705 U of CN 203789039 U and CN.

(3) feeding of flood dragon type chocolate and extrusion device are applied.There are the patent document of relevant apparatus, Granted publication in the country Number：CN 204217792 U.

Wherein most chocolate 3D printing equipment all have the characteristics that (1), but chocolate printhead is a to have in itself The complication system of more sport technique segment requirement, and moving component is carried, and such a huge system includes band heating dress The charging basket put or also thick charging line, piston and syringe needle with driving device in tow, on the one hand from movement on the other hand As print system high-speed motion, and what is filled in printhead is thermally sensitive fluidised form chocolate raw material, plus response Slow vapour-pressure type extruding printing type, its quality printed obviously cannot require too high.

Feature (2) is the application of the design of chocolate printhead, it the shortcomings that be obvious.The wall built-up phenomenon of chocolate was both Influence the movement effects of piston influences the efficiency of conveyance conduit again, so as to decline print quality quickly, the preparation before use with Maintenance and charging work after use is various, is unfavorable for practicality.Even if there is automatic feeding system, the maintenance of feeding pipe is also not It is negligible, the problem of line clogging is common.

Feature (3) is also the application of the design of chocolate printhead, can print the Filamentous chocolate of half dissolving, it overcomes The drawbacks of fluidised form raw material conveying, also more conducively 3D be molded.But its each layer of chocolate silk is that surface is slightly dissolved Afterwards, contact with each other and be bonded together, and the core of every chocolate silk is the chocolate particulate to condense together under pressure, Its form combined is still loose.Due to being filiform that siccative is squeezed into, and this will include the epidermis of dissolving and insoluble The core of solution, therefore its accuracy limitations is fairly obvious in 0.6mm~2mm, the layer line lines of finished product.In addition flood dragon type feeding is to chalk The requirement of power raw material is also very high, and this extrusion forming process and the principle of chocolate spontaneous nucleation greatly differ from each other, actual to answer With also there is limitation.

In terms of except three above, there is the common drawback of all chocolate 3D printers before one, be exactly that user makes With difficulty height.Because first needing to obtain 3D printing model, even if there is 3D scanning devices, also it could be corrected or be repaiied with professional software Change；Even with applicable 3D models also the file for the printing that is available on the machine could be exported with the Slice Software section of specialty.Rather than Professional crowd oneself can not possibly model, and will not use Slice Software, will not buy the professional 3D scanning devices of costliness.So Such equipment is difficult to be popularized to receive by general user.

It would therefore be desirable to research and develop a kind of new chocolate 3D printer, the difficulty of technology at present set forth above is solved And deficiency.

Utility model content

The purpose of this utility model is that solve the existing above problem, there is provided a kind of new chocolate 3D printer, this Chocolate printhead system in the new chocolate 3D printer of utility model is fixing device, with reference to the essence of 3D moving mechanisms Skilful design, it is not necessary to consider the problem of feeding pipe follows printhead to move, it is not required that consider that feeding pipe temperature maintains, keep away Exempted from feeding pipe easily block, user's puzzlement of difficult cleaning etc.；Export materials behavior at the same time and output quantity is accurate, accomplish to instruction Real-time response, so as to reach the effect for improving printing precision.The chocolate raw material that 3D moving mechanisms make to print is accumulated more Perfect solid shape.

To solve the above problems, the utility model is achieved through the following technical solutions：

The new chocolate 3D printer of the utility model, including rack, chocolate printhead system, 3D moving mechanisms and Auxiliary system is printed, wherein：

Chocolate printhead system includes：Feeding chamber, molten feed bin and printhead；

Wherein feeding chamber includes：By driving motor-driven feeding spiro rod, feeding chamber bottom is infundibulate, and leak connection is molten Feed bin；

Wherein molten feed bin includes：Molten feed bin main body, the molten hopper positioned at molten feed bin lower part, heating plate and driven by driving motor Dynamic stirring rod, heating plate are wrapped in the middle and lower part of molten feed bin main body periphery, and the raw material of molten feed bin is sent into program by feeding chamber The lower heating of control is dissolved, while the stirring rod in molten feed bin main body slowly rotates stirring and chocolate is uniformly dissolved exquisiteness；

Wherein printhead includes：As including in storehouse in storehouse in the gear pump structure of core, gear pump structure by stepping electricity The driving gear and intermeshing driven gear, heat sink, heating rod, temperature sensor and spraying material head of machine driving；Gear pump Driving gear by driving stepper motor；Heat sink is arranged on molten bin bottom and the interface channel in orlop portion in gear pump structure Place, the temperature of the raw material in storehouse in gear pump structure is entered for controlling；Heating rod is positioned close at spraying material head, passes through program control Heating rod processed adjusts the temperature of printhead different parts and draws molten feed bin to the temperature for being adapted to printing, and by gear pump principle Material solution and the discharging of control spraying material head or pumpback；

3D moving mechanisms include：Three arm linkage mechanisms and the three-dimensional motion print platform for being supported by it and linking with it；

Wherein three arm linkage mechanisms include：Vertical columns in triangular arranged or the fixation in equilateral triangle Frame, linear moving module, connecting rod and linkage platform；Linear moving module includes three groups, and every group includes：Stepper motor, transmission Mechanism, sliding block and guide rail；It is in the vertical columns of triangular arranged or the fixed frame in equilateral triangle that guide rail, which is installed on, On vertical columns, stepper motor is moved up and down by transmission mechanism band movable slider on guide rail；Connecting rod includes three groups, and every group equal Including two, every one end is connected by ball-joint with sliding block, and the other end is connected by ball-joint with linkage platform；Linkage platform： For connecting three groups of connecting rods and fixed three-dimensional motion print platform；

Printing auxiliary system includes temperature control system：Wherein temperature control system includes heat control unit；Heat control unit bag Include：Foregoing heating plate and heating rod, and temperature sensor；Temperature sensor detects raw material in molten hopper outlet respectively Place, raw material enter in gear pump structure before storehouse and temperature of the raw material in spraying material head.

The utility model is further optimized for：The nozzle opening diameter of spraying material head is 0.08mm-0.3mm, for high accuracy Basic condition is created in printing.

The utility model is further optimized for：The nozzle periphery of spraying material head has an insulation ring, insulation ring material for ceramics or Silica gel, it is ensured that the raw material in the small sized pipeline at nozzle position, which will not be printed indoor cold air, to be freezed, so that obstruction.

The utility model is further optimized for：Temperature control system further includes thermantidote in Photocopy Room, it includes：Semiconductor Refrigerating plant and water-cooling heat radiating device.

The utility model is further optimized for：Printing auxiliary system further includes background operating system, it includes and control The WIFI module of mainboard connection, can provide cloud service to the user by WIFI connections internet by enterprise.

Chocolate printhead system in the new chocolate 3D printer of the utility model is overall fixing device, no 3D motion is participated in, only attentively completes above-mentioned temperature control and print job, it is stable and reliable in work and feedstock transportation pipeline is not required, therefore The problem of following printhead to move without the concern for feeding pipe, it is not required that consider that feeding pipe temperature maintains, avoid defeated Pipe material easily blocks, user's puzzlement of difficult cleaning etc..Export materials behavior at the same time and output quantity is accurate, accomplish to ring in real time to instructing Should, so as to reach the effect for improving printing precision.

3D moving mechanisms in the new chocolate 3D printer of the utility model are calculated by program, and three-dimensional motion is beaten (x, y, z) coordinate of print platform is converted to unique positions point of three sliding blocks on vertical columns, when sliding block is by programme-control edge When the guide rail on three vertical columns and moving up and down, it moves up and down that to be just converted into three-dimensional motion printing by connecting rod flat The three-dimensional of platform is mobile, in this way, the rail that the chocolate that chocolate printhead sprays on mobile three-dimensional motion print platform is formed Mark is formed the entity products of three-dimensional plus stacking effect, and the chocolate raw material for making to print accumulates more perfect solid Form.

The new chocolate 3D printer of the utility model has temperature control system, and heat dissipation is arranged at chocolate printhead system top Unit, lower part are equipped with heating unit.The liquid chocolate of molten feed bin is temperature-fall period when entering printhead top, by stepper motor Drive the engagement of two gears in printhead center cavity to transmit movement, drive liquid chocolate to make operation controllable in order, liquid When state chocolate runs to printhead bottom after heating up again, the printing spraying material head in bottom sprays, and the liquid of ejection is new and ingenious Gram force is very thin, becomes new solid chocolate by rapid cooling, rapid crystallization by thermantidote in Photocopy Room.In this way, Chocolate is dissolved into printing shaping from molten feed bin, experienced heating-cooling-and heats up-be cooled to again the process of crystallization.Pass through temperature control Program adjustment control, can reach the temperature index of links, so as to fulfill the thermoregulation curve process of the β crystallizations of chocolate, do The making requirement of traditional handicraft is arrived.

Thermantidote in Photocopy Room in temperature control system, it includes：Semiconductor cooling device and water-cooling heat radiating device.Partly lead System device for cooling enters in the low temperature environment of a suitable crystallization after ensuring chocolate jetting nozzle, and is needing the situation of chilling Lower offer condition.Water-cooling heat radiating device is mainly responsible for radiate to semiconductor refrigeration chip, improves the efficiency of refrigeration.

The 3D that the background operating system of the new chocolate 3D printer of the utility model makes user not have to contact specialty is built Mould software and Slice Software, directly realize selection pattern by mobile phone and send print command, be food 3D printer family expenses Feasible scheme is provided.

Brief description of the drawings

Fig. 1 is the overall structure diagram of the chocolate 3D printer of the utility model.

Fig. 2 is the positive structure schematic of the chocolate 3D printer of the utility model.

Fig. 3 is the positive structure schematic of the chocolate printhead system in the chocolate 3D printer of the utility model.

Fig. 4 is the side structure schematic diagram of the chocolate printhead system in the chocolate 3D printer of the utility model.

Fig. 5 is the cross-sectional view of the chocolate printhead system in the chocolate 3D printer of the utility model.

Fig. 6 is the network connection schematic diagram of the chocolate 3D printer of the utility model.

The molten feed bin 3- drivings motor 4- feeding spiro rods of 1- feeding chambers 2-

The molten hopper 6- heating plates 7- stirring rod 8- temperature sensors of 5-

Storehouse 10- stepper motors 11- driving gear 12- driven gears in 9- gear pump structures

13- heat sink 14- heating rod 15- spraying material head 16- power-supply systems

17- control mainboard 18-WiFi module 19- control panel 20-SD card plugs

21- semiconductor cooling device 22- air outlet 23- three-dimensional motion print platform 24- fixed frames

25- vertical columns 26- sliding block 27- guide rail 28- connecting rods

29- water-cooling heat radiating device 30- linkage platform 31- insulation rings

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

The new chocolate 3D printer of the utility model can be roughly divided into two regions up and down, and the above is non-motor area, Here is motor area.Upper and lower twoth area carries out linking interaction by enclosing cover independent inner space by inner casing.

1st, non-athletic area is fixed by the rack being connected with outer cage, is mounted with chocolate printhead system and portion respectively Divide printing auxiliary system；

Chocolate printhead system includes：Feeding chamber 1, molten feed bin 2 and printhead；

Wherein feeding chamber 1 includes：The feeding spiro rod 4 driven by driving motor 3,1 bottom of feeding chamber are infundibulate, and leak connects Lead to molten feed bin 2, when the raw material in molten feed bin 2 is reduced, the raw material in feeding chamber 1 by driving motor 3 by driving rotating send Expect that the push of screw rod 4 enters in molten feed bin 2；The top of feeding chamber 1 is connected with the suitable position of machine top shell or machine shell, in exterior machine Sealing warehouse lid can be opened at shell, arbitrarily adds chocolate raw material；

Wherein molten feed bin 2 includes：Molten 2 main body of feed bin, the molten hopper 5 positioned at molten 2 lower part of feed bin, heating plate 6 and by driving The stirring rod 7 that motor 3 drives, heating plate 6 are wrapped in the middle and lower part of molten 2 main body of feed bin periphery, molten feed bin 2 are sent into by feeding chamber 1 Raw material heat dissolve under program, while the stirring rod 7 in 2 main body of molten feed bin slowly rotates stirring and dissolves chocolate Uniform and smooth.

Molten 2 preferred material of feed bin is stainless steel, and main body is cylinder tank body, is passed in the middle part of periphery around heating plate 6 and temperature The heating unit that sensor 8 forms, the temperature of component where heating unit is sensed according to temperature sensor 8 and program setting Temperature control standard is implemented to start or is closed, and controls the temperature in molten feed bin 2.The stirring rod 7 of device in molten feed bin 2, ceaselessly At the uniform velocity stir, to ensure that chocolate is heated evenly in storehouse, this point is consistent with the requirement of traditional chocolate manufacture craft.Stirring rod 7 Driven by the driving motor 3 for being fixed on the molten top of feed bin 2.Molten 2 base portion of feed bin at the top of printhead with being connected, by the liquid of dissolving State chocolate by filling printhead internal chamber here.Molten 2 component of feed bin and printhead are each attached to the machine being coupled with cabinet On frame member.

Wherein printhead includes：As including in storehouse 9 in storehouse 9 in the gear pump structure of core, gear pump structure by stepping The driving gear 11 and intermeshing driven gear 12, heat sink 13, heating rod 14,8 and of temperature sensor that motor 10 drives Spraying material head 15；The driving gear 11 of gear pump is driven by stepper motor 10；Heat sink 13 is arranged on molten 2 bottom of feed bin and gear pump In structure at the interface channel of 9 bottom of storehouse, the temperature of the raw material in storehouse 9 in gear pump structure is entered for controlling；Heating rod 14 is set Put at spraying material head 15, the temperature of printhead different parts is adjusted to the temperature of suitable printing by program controlled heater rod 14 Degree, and the material solution of molten feed bin 2 is drawn by gear pump principle and control spraying material head 15 discharges or pumpback.

Preferably by stainless steel monoblock cast, heat-sink unit is arranged printhead at top, and lower part is equipped with heating unit.Molten feed bin 2 Liquid chocolate is temperature-fall period when entering printhead top, and two gears in printhead center cavity are driven by stepper motor 10 Engagement transmit movement, drive liquid chocolate to make controllable operation in order, liquid chocolate passes through when running to printhead bottom Cross after heating up again, the printing spraying material head 15 in bottom sprays, and the new chocolate of liquid of ejection is very thin, by then by rapidly Cooling, rapid crystallization become new solid chocolate.In this way, chocolate is dissolved into printing shaping from molten feed bin 2, liter experienced Temperature-cooling-heats up-is cooled to the process of crystallization again.By temperature program adjustment control, the temperature that can reach links refers to Mark, so as to fulfill the thermoregulation curve process of the β crystallizations of chocolate, has accomplished the making requirement of traditional handicraft.

Chocolate printhead system is overall fixing device, is not involved in 3D motion, only attentively completes above-mentioned temperature control and printing Work, it is stable and reliable in work and be not required feedstock transportation pipeline, export materials behavior and output quantity it is accurate, accomplish to instruct it is real-time Response, so as to reach the effect for improving printing precision.

In this non-athletic area, relative position as shown in drawings is also an option that installation section prints auxiliary system, Including：Temperature control system, power-supply system 16, control mainboard 17, WiFi module 18, control panel 19 and SD also on casing Card plug 20；Power-supply system 16 and control mainboard 17 are each attached on the support element being coupled with cabinet inside；Power-supply system 16 Matched electric power support is provided for all parts.Control mainboard 17 is using Mks base mainboards.The access of WIFI module 18, 3D chocolate printers are accessed network, by high in the clouds background service platform, user is realized that fool prints on mobile phone Operation.But in the Internet of things era, cell phone application manipulation electric appliance has been standard configuration, and the new chocolate 3D of the utility model The configuration of WIFI module 18 of printer is not only mobile phone manipulation printing, its significance is that service provider passes through operating service platform The technical support of specialty is provided, unprofessional user is crossed over technology barrier, easily using high and new technology；User need not know as How the 3D models of what structure entity, cut into slices, it is only necessary to proposes that effective condition requires, elects and send print command. Control panel 19 and SD card socket 20 are supplied to user, by SD card, to access and control directly the 3D printing file for carrying out section Printing.

Wherein temperature control system includes heat control unit；Heat control unit includes：Foregoing heating plate 6 and heating Rod 14, and temperature sensor 8；Temperature sensor 8 detects raw material and enters gear pump knot in molten 5 exit of hopper, raw material respectively In structure before storehouse 9 and temperature of the raw material in spraying material head 15.

Inactive region can also set the semiconductor cooling device 21 in temperature control system system (can also be according to actual need It is arranged in zone of action), the air outlet 22 of semiconductor cooling device 21 encloses in the print space covered (outlet air in machine inner casing Mouth 22 is in zone of action), it is ensured that enter one after chocolate jetting nozzle and be adapted in the low temperature environment of crystallization, and need urgency Condition is provided in the case of cold.

2nd, in motor area, 3D moving mechanisms and another part printing auxiliary system are mounted with.

3D moving mechanisms include：Three arm linkage mechanisms and the three-dimensional motion print platform 23 for being supported by it and linking with it；

Wherein three arm linkage mechanisms include：Vertical columns 25 in triangular arranged or the fixation in equilateral triangle Frame 24, linear moving module, connecting rod 28 and linkage platform 30；Linear moving module includes three groups, and every group includes：Stepper motor 10th, transmission mechanism, sliding block 26 and guide rail 27；Guide rail 27 is installed in the vertical columns 25 of triangular arranged or in equilateral three On the vertical columns 25 of angular fixed frame 24, stepper motor 10 is done up and down by transmission mechanism band movable slider 26 on guide rail 27 Movement；Connecting rod 28 includes three groups, and every group includes two, and every one end is connected by ball-joint with sliding block 26, and the other end passes through Ball-joint is connected with linkage platform 30；Linkage platform 30：For connecting three groups of connecting rods 28 and fixed three-dimensional motion print platform 23.Pass Motivation structure can use the applicable common side such as sprocket wheel, chain drive, belt transmission, synchronous belt, screw or ball screw Formula.Wherein in triangular arranged vertical columns 25 or can select aluminium alloy extrusions in the fixed frame 24 of equilateral triangle It is coupled structure, is fixed on the bottom of cabinet；Stepper motor 10 is fixed on bottom in cabinet；Vertical columns 25 or fixed frame 24 and The installation of stepper motor 10 can carry out adaptability installation according to actual conditions using usual manner.

23 preferred stainless steel material of three-dimensional motion print platform, structure are hollow insulating type.Calculated by program, three-dimensional (x, y, z) coordinate of movement print platform 23 is converted to unique positions point of three sliding blocks 26 on vertical columns 25, works as sliding block 26 by programme-control along the guide rail 27 on three vertical columns 25 move up and down when, it is moved up and down just by connecting rod 28 It is mobile to be converted into the three-dimensional of three-dimensional motion print platform 23, in this way, chocolate printhead is in mobile three-dimensional motion print platform The track that the chocolate sprayed on 23 is formed is formed the entity products of three-dimensional plus stacking effect.

Another part printing auxiliary system refers to the water-cooling in the temperature control system system of cabinet lower half Device 29.Water-cooling heat radiating device 29 is installed in three arm linkage mechanisms in the vertical columns 25 of triangular arranged or in equilateral Room between on the inside of the outside of vertical columns 25 of the fixed frame 24 of triangle and outer cage, it is mainly responsible for semiconductor refrigerating Chip cooling, improves the efficiency of refrigeration.

The utility model is further optimized for：The nozzle opening diameter of spraying material head 15 is 0.08mm-0.3mm.

The utility model is further optimized for：The nozzle periphery of spraying material head 15 has insulation ring 31, and 31 material of insulation ring is Ceramics or silica gel.

An independent chamber for covering is enclosed for inner casing in the motor area of the new chocolate 3D printer of the utility model. Top down of the air outlet 22 of printhead and semiconductor cooling device 21 in motor area enters this space, and the linkage of three arms Print platform also work in this space.Independent chamber reduces the space of refrigeration, reduces the loss of refrigeration, effectively The utilization rate for improving refrigeration efficiency.When flying print head sprays thin liquid chocolate, you can cool down to the cold, so that It can rapidly crystallize, and spray the thin liquid chocolate of next layer for printhead and lay a solid foundation, and then construct out biography The exquisite product that system is unable to reach.

The new chocolate 3D printer of the utility model to it is program-controlled response be it is sensitive and accurate, can be defeated with real-time transform The state gone out, for example output quantity is increased during bridging, recover normal after gap bridge；Such as when the small slicing layer of area extends cooling Between, or even emphasis is sent to cold air mouth and " is suddenly frozen "；Accurate pumpback and reset during such as jump printing again.These powerful functions Enable it to print high quality, highly difficult art piece chocolate, such as the floriation technique of hollow out, compensate for traditional manufacturing technique Inaccessiable vacancy.

In conclusion only preferred embodiments of the utility model, not make in any form the utility model Limitation；The various location expressions of grade up and down arrived involved in present specification are only for convenience of description, not to the utility model The limitation of scheme；All those skilled in the art are not being departed from the range of technical solutions of the utility model, are utilized to be taken off The technology contents that show and a little change, modification and the equivalent variations developed made, are accordingly to be regarded as the equivalent example of the utility model； Meanwhile change of all substantial technologicals according to the present utility model to any equivalent variations made by above example, modification with Develop, still fall within the protection domain of the technical solution of the utility model.

Claims (5)

1. a kind of new chocolate 3D printer, including rack, chocolate printhead system, 3D moving mechanisms and printing auxiliary system System, it is characterised in that：

Chocolate printhead system includes：Feeding chamber, molten feed bin and printhead；

Wherein feeding chamber includes：By driving motor-driven feeding spiro rod, feeding chamber bottom is infundibulate, and leak connects molten material Storehouse；

Wherein molten feed bin includes：Molten feed bin main body, the molten hopper positioned at molten feed bin lower part, heating plate and by drive it is motor-driven Stirring rod, heating plate are wrapped in the middle and lower part of molten feed bin main body periphery, and the raw material of molten feed bin is sent into programme-control by feeding chamber Lower heating is dissolved, while the stirring rod in molten feed bin main body slowly rotates stirring and chocolate is uniformly dissolved exquisiteness；

Wherein printhead includes：As including being driven by stepper motor in storehouse in storehouse in the gear pump structure of core, gear pump structure Dynamic driving gear and intermeshing driven gear, heat sink, heating rod, temperature sensor and spraying material head；The master of gear pump Moving gear is by driving stepper motor；Heat sink is arranged in molten bin bottom and gear pump structure at the interface channel in orlop portion, Enter the temperature of the raw material in storehouse in gear pump structure for controlling；Heating rod is positioned close at spraying material head, passes through programme-control Heating rod adjusts the temperature of printhead different parts to the temperature for being adapted to printing, and the original of molten feed bin is drawn by gear pump principle Expect solution and the discharging of control spraying material head or pumpback；

3D moving mechanisms include：Three arm linkage mechanisms and the three-dimensional motion print platform for being supported by it and linking with it；

Wherein three arm linkage mechanisms include：It is vertical columns in triangular arranged or the fixed frame in equilateral triangle, straight Line motion module, connecting rod and linkage platform；Linear moving module includes three groups, and every group includes：Stepper motor, transmission mechanism, Sliding block and guide rail；Guide rail is stood installed in the vertical columns in triangular arranged or in the fixation of the fixed frame of equilateral triangle On column, stepper motor is moved up and down by transmission mechanism band movable slider on guide rail；Connecting rod includes three groups, and every group includes two Root, every one end are connected by ball-joint with sliding block, and the other end is connected by ball-joint with linkage platform；Linkage platform：For even Connect three groups of connecting rods and fixed three-dimensional motion print platform；

Printing auxiliary system includes temperature control system：Wherein temperature control system includes heat control unit；Heat control unit includes：Before Heating plate and heating rod described in face, and temperature sensor；Temperature sensor detects raw material at molten hopper outlet, original respectively Material enters in gear pump structure before storehouse and temperature of the raw material in spraying material head.

2. new chocolate 3D printer according to claim 1, it is characterised in that：

The nozzle opening diameter of spraying material head is 0.08mm-0.3mm.

3. new chocolate 3D printer according to claim 1 or 2, it is characterised in that：

The nozzle periphery of spraying material head has insulation ring, and insulation ring material is ceramics or silica gel.

4. new chocolate 3D printer according to claim 1, it is characterised in that：

Temperature control system further includes thermantidote in Photocopy Room, it includes：Semiconductor cooling device and water-cooling heat radiating device.

5. the new chocolate 3D printer according to claim 1 or 4, it is characterised in that：

Printing auxiliary system further includes background operating system, it includes the WIFI module being connected with control mainboard, can pass through WIFI connections internet, cloud service is provided to the user by enterprise.