CN204894547U - Compressor cooled parallel arm three -dimensional inkjet printer's base mounting structure - Google Patents

Abstract

Compressor cooled parallel arm three -dimensional inkjet printer's base mounting structure including the base that is triangle structure, do not is equipped with three spinal branch daggers perpendicularly in the punishment of three apex angle on the base, and base one side is equipped with cold wind and produces the device. The utility model relates to a novelty, compact structure, transmission stability are high, in time cool off the hot -melt material who extrudes, and warping can not appear in the product that prints, and the printing precision improves greatly.

Description

The base mounting structure of compressor cooled parallel arm three-dimensional printer

Technical field

The utility model belongs to three-dimensionally shaped technical field, particularly relates to a kind of base mounting structure of compressor cooled parallel arm three-dimensional printer.

Background technology

Three-dimensional printing technology, design a model as source with Computerized three-dimensional, discrete and the numerical control molding system by software hierarchy, utilize the mode such as laser beam, hot melt nozzle successively to be piled up by the special materials such as metal dust, ceramic powders, plastics, cell tissue to cohere, final superposition is shaping, produces entity products.3D solid is become several two dimensional surfaces by 3 D-printing, producing, greatly reducing the complexity of manufacture by also successively superposing material processed.This Digitized manufacturing pattern directly just can generate the part of any shape from computer graphics data.Fusion sediment moulding (FDM) technology is a mainstream technology in three-dimensional printing technology, and FDM technology is that cad model is divided into cross section very thin from level to level, generates the two-dimensional geometry information controlling 3 D-printing machine nozzle motion track.The heating head of three-dimensional printer is heated to critical condition heat-fusible materials (ABS resin, nylon, wax etc.), present quasi-fluid properties, under the control of the computer, along the two-dimensional geometry information movement track that CAD determines, the material of half flow regime squeezes out by extruder head, solidifies the thin layer forming contour shape.After one deck, fallen by vertical lift system and newly form layer, be cured.Pile up bonding so layer by layer, form the 3D solid of this model from bottom to top.

One of key issue of the three-dimensional printer of application FDM technology is formed precision problem, affects a lot of because have of formed precision, the problem etc. comprising frame strength, transmission stability and cool heat-fusible materials.Frame strength deficiency can cause printer to occur the change of fitted position in the course of the work, impacts formed precision; Intensity deficiency also can cause transmission stability not high, and vibrations appear in printhead walking process mid frame, and printing precision is reduced; Heat-fusible materials cools too slow after extruder head is extruded, and there will be heat-fusible materials and is naturally elongated by gravity, causes the model printed to occur the problem of being out of shape.So, for improving printing precision, needing badly and existing three-dimensional printer is improved.

Utility model content

The utility model, in order to solve weak point of the prior art, provides that a kind of compact conformation, intensity are high, transmission stability good, shortening heat melt material cool time, promotes the base mounting structure of the compressor cooled parallel arm three-dimensional printer of printing precision.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: the base mounting structure of compressor cooled parallel arm three-dimensional printer, comprise the base in equilateral triangle structure, base is vertically provided with three support columns respectively at three drift angle places, and base side is provided with cold wind generation device;

Cold wind generation device comprises housing, be provided with box body in housing and be positioned at the refrigeration compressor at box body top, condenser, condensation radiator, choke valve, air quantity regulates motor and turbofan, evaporimeter is provided with and for regulating the air door of ventilation-sectional area size in box body in box body, the rotating shaft be rotatably connected on box body is vertically provided with in the middle part of air door, air quantity regulates the main shaft of motor to be connected with rotating shaft transmission, condensation radiator is located on condenser, housing is provided with the heat radiation air-inlet window of contiguous refrigeration compressor and the heat radiation air outlet window of contiguous condensation radiator, refrigeration compressor, condenser, choke valve, evaporimeter and refrigeration compressor sequentially pass through pipeline and are connected, housing is provided with the cooling air-inlet window be connected with turbofan air inlet, box body is provided with the air intake vent be communicated with turbofan air outlet, air door is between air intake vent and evaporimeter, box body is connected with wind scooper in one end of contiguous evaporimeter, the outlet of wind scooper is connected with the cool air hose stretching out housing, cool air hose is along the lateral of a wherein support column is connected with cooling jet through after installing plate from top to bottom, cooling jet is located at by connecting plate to be extruded below workbench, and the blowing mouth of cooling jet is towards the outlet of extruder head,

Base sidepiece is provided with electric control gear, and electric control gear regulates motor and refrigeration compressor to be connected with turbofan, air quantity respectively;

Described base is provided with the fixed head between three support columns.

Adopt technique scheme, three support column top levels in compressor cooled parallel arm three-dimensional printer are provided with installing plate, installing plate is provided with raw material extruder, vertically slide inside every root support column and be provided with coaster, ball screw drive mechanism is provided with between support column and coaster, mutually isostructural parallel arm is all hinged with inside each coaster, the lower end of parallel arm is hinged with extrudes workbench, the center of extruding workbench is provided with extruder head, the entrance point of extruder head is connected with the discharging opening of raw material extruder by mother tube, extruder head outer wrap having heaters,

Vertically slideway is provided with in the middle part of support column, the pilot hole be communicated with slideway is vertically provided with inside support column, ball screw drive mechanism comprises stepper motor, leading screw and Connection Block, Connection Block the inner is fixedly connected with coaster through pilot hole, stepper motor is located in base, leading screw is vertically located in slideway, leading screw passes Connection Block and is threaded with Connection Block, support column is provided with holder on slideway top, leading screw upper end is rotatably connected in holder, and stepper motor is in transmission connection by shaft coupling and leading screw lower end; Electric control gear is also connected with raw material extruder, heater and stepper motor respectively.

The technique scheme of compressor cooled parallel arm three-dimensional printer has following beneficial effect:

1, the ball screw drive mechanism often arranged between root support column with corresponding coaster, ball screw drive mechanism adopts driving stepper motor screw turns, this principle of rectilinear motion up and down that the rotation of leading screw is converted to coaster realizes rectilinear motion, coaster moves up and down more steady, mobile accuracy is higher, thus guarantees that parallel arm drive is extruded workbench and run more steady.

2, refrigeration principle of the present utility model is: refrigeration compressor is compressed into high temperature and high pressure gas cold-producing medium by low temperature low pressure gas, then becomes the liquid of normal temperature high voltage through condenser condenses, after choke valve throttling, then becomes the liquid of low-temp low-pressure.The liquid refrigerant of low-temp low-pressure sends into evaporimeter, and in evaporimeter, heat absorption is evaporated and becomes the steam of high-temperature low-pressure, is again delivered into refrigeration compressor, thus completes kind of refrigeration cycle.

After air in box body is cooled, turbofan is dried in box body, air-flow is cooled through evaporimeter, cold air sprays to the exit of extruder head by wind scooper, cool air hose and cooling jet, the material of half flow regime squeezes out by extruder head, brute force through cold wind cools, and quick solidification forms the thin layer of contour shape.So just avoid cool time long, the situation causing heat molten type material to produce distortion due to self gravitation effect occurs.

Air quantity regulates motor to drive air door to rotate by rotating shaft, and air door rotates the ventilation-sectional area that can regulate box body, thus regulates the air output of cooling jet, reaches the object regulating cooling effect.

In sum, the utility model modern design, compact conformation, transmission stability are high, cool in time the heat-fusible materials extruded, and the product printed there will not be distortion, and printing precision improves greatly.

Accompanying drawing explanation

Fig. 1 is the perspective view of compressor cooled parallel arm three-dimensional printer;

Fig. 2 is the planar structure schematic diagram of compressor cooled parallel arm three-dimensional printer.

Detailed description of the invention

As depicted in figs. 1 and 2, compressor cooled parallel arm three-dimensional printer, comprise the base 1 in equilateral triangle structure, base 1 is vertically provided with three support columns 2 respectively at three drift angle places, three support column 2 top levels are provided with installing plate 3, installing plate 3 is provided with raw material extruder 4, base 1 side is provided with cold wind generation device, vertically slide inside every root support column 2 and be provided with coaster 6, ball screw drive mechanism is provided with between support column 2 and coaster 6, mutually isostructural parallel arm 7 is all hinged with inside each coaster 6, the lower end of parallel arm 7 is hinged with extrudes workbench 8, the center of extruding workbench 8 is provided with extruder head 9, the entrance point of extruder head 9 is connected with the discharging opening of raw material extruder 4 by mother tube 10, extruder head 9 outer wrap having heaters 11.

Cold wind generation device comprises housing 13, be provided with box body 14 in housing 13 and be positioned at the refrigeration compressor 15 at box body 14 top, condenser 16, condensation radiator 17, choke valve 31, air quantity regulates motor 32 and turbofan 12, evaporimeter 33 is provided with and for regulating the air door 34 of ventilation-sectional area size in box body 14 in box body 14, the rotating shaft 35 be rotatably connected on box body 14 is vertically provided with in the middle part of air door 34, air quantity regulates the main shaft of motor 32 and rotating shaft 35 to be in transmission connection, condensation radiator 17 is located on condenser 16, housing 13 is provided with the heat radiation air-inlet window 36 of contiguous refrigeration compressor 15 and the heat radiation air outlet window 37 of contiguous condensation radiator 17, refrigeration compressor 15, condenser 16, choke valve 31, evaporimeter 33 sequentially passes through pipeline with refrigeration compressor 15 and is connected, housing 13 is provided with the cooling air-inlet window 38 be connected with turbofan 12 air inlet, box body 14 is provided with the air intake vent be communicated with turbofan 12 air outlet, air door 34 is between air intake vent and evaporimeter 33, box body 14 is connected with wind scooper 18 in one end of contiguous evaporimeter 33, the outlet of wind scooper 18 is connected with the cool air hose 19 stretching out housing 13, cool air hose 19 is along the lateral of a wherein support column 2 is connected with cooling jet 20 through after installing plate 3 from top to bottom, cooling jet 20 is located at by connecting plate 30 to be extruded below workbench 8, and the blowing mouth of cooling jet 20 is towards the outlet of extruder head 9.

Slideway 21 is vertically provided with in the middle part of support column 2, the pilot hole 22 be communicated with slideway 21 is vertically provided with inside support column 2, ball screw drive mechanism comprises stepper motor 23, leading screw 24 and Connection Block 25, Connection Block 25 the inner is fixedly connected with coaster 6 through pilot hole, stepper motor 23 is located in base 1, leading screw 24 is vertically located in slideway 21, leading screw 24 passes Connection Block 25 and is threaded with Connection Block 25, support column 2 is provided with holder 26 on slideway 21 top, leading screw 24 upper end is rotatably connected in holder 26, stepper motor 23 is in transmission connection by shaft coupling 27 and leading screw 24 lower end.

Base 1 sidepiece is provided with electric control gear 29, and electric control gear 29 regulates motor and stepper motor 23 to be connected with raw material extruder 4, heater 11, turbofan 12, refrigeration compressor 15, air quantity respectively.

Base 1 is provided with the fixed head 28 between three support columns 2.

The ball screw drive mechanism arranged between every root support column 2 with corresponding coaster 6, ball screw drive mechanism adopts stepper motor 23 to drive leading screw 24 to rotate, this principle of rectilinear motion up and down that the rotation of leading screw 24 is converted to coaster 6 realizes rectilinear motion, coaster 6 moves up and down more steady, mobile accuracy is higher, thus guarantees that parallel arm 7 drive is extruded workbench 8 and run more steady.

Refrigeration principle of the present utility model is: refrigeration compressor 15 is compressed into high temperature and high pressure gas cold-producing medium by low temperature low pressure gas, then is condensed into the liquid of normal temperature high voltage through condenser 16, after choke valve 31 throttling, then becomes the liquid of low-temp low-pressure.The liquid refrigerant of low-temp low-pressure sends into evaporimeter 33, and in evaporimeter 33, heat absorption is evaporated and becomes the steam of high-temperature low-pressure, is again delivered into refrigeration compressor 15, thus completes kind of refrigeration cycle.

After air in box body 14 is cooled, turbofan 12 is dried in box body 14, air-flow is cooled through evaporimeter 33, cold air sprays to the exit of extruder head by wind scooper 18, cool air hose 19 and cooling jet 20, the material of half flow regime squeezes out by extruder head, brute force through cold wind cools, and quick solidification forms the thin layer of contour shape.So just avoid cool time long, the situation causing heat molten type material to produce distortion due to self gravitation effect occurs.

Air quantity regulates motor 32 to drive air door 34 to rotate by rotating shaft 35, and air door 34 rotates the ventilation-sectional area that can regulate box body 14, thus regulates the air output of cooling jet 20, reaches the object regulating cooling effect.

The present embodiment not does any pro forma restriction to shape of the present utility model, material, structure etc.; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all belong to the protection domain of technical solutions of the utility model.

Claims (1)

1. the base mounting structure of compressor cooled parallel arm three-dimensional printer, is characterized in that: comprise the base in equilateral triangle structure, base is vertically provided with three support columns respectively at three drift angle places, and base side is provided with cold wind generation device;

Cold wind generation device comprises housing, be provided with box body in housing and be positioned at the refrigeration compressor at box body top, condenser, condensation radiator, choke valve, air quantity regulates motor and turbofan, evaporimeter is provided with and for regulating the air door of ventilation-sectional area size in box body in box body, the rotating shaft be rotatably connected on box body is vertically provided with in the middle part of air door, air quantity regulates the main shaft of motor to be connected with rotating shaft transmission, condensation radiator is located on condenser, housing is provided with the heat radiation air-inlet window of contiguous refrigeration compressor and the heat radiation air outlet window of contiguous condensation radiator, refrigeration compressor, condenser, choke valve, evaporimeter and refrigeration compressor sequentially pass through pipeline and are connected, housing is provided with the cooling air-inlet window be connected with turbofan air inlet, box body is provided with the air intake vent be communicated with turbofan air outlet, air door is between air intake vent and evaporimeter, box body is connected with wind scooper in one end of contiguous evaporimeter, the outlet of wind scooper is connected with the cool air hose stretching out housing, cool air hose is along the lateral of a wherein support column is connected with cooling jet through after installing plate from top to bottom, cooling jet is located at by connecting plate to be extruded below workbench, and the blowing mouth of cooling jet is towards the outlet of extruder head,

Base sidepiece is provided with electric control gear, and electric control gear regulates motor and refrigeration compressor to be connected with turbofan, air quantity respectively;

Described base is provided with the fixed head between three support columns.