阅读说明：本技术 一种高温3d打印耗材生产装置 (High temperature 3D printing consumables apparatus for producing ) 是由 刘永江 金毅 刘健 于 2020-04-27 设计创作，主要内容包括：本发明公开了一种高温3D打印耗材生产装置,包括依次相连的挤出机构、风冷机构、冷风机构、挤出材料牵引机构、储线机构、收卷机构；挤出机构包括料斗、挤出机螺筒、螺筒加热器,料斗的出料端连接于挤出机螺筒,挤出机螺筒内设有挤出机螺杆,挤出机螺杆依次连接螺筒加热器、挤出机模具,挤出机模具设有挤出机射嘴；风冷机构包括鼓风机及导通于鼓风机的风冷台；冷风机构包括冷风机及导通于冷风机的冷风槽；挤出材料牵引机构：拉动挤出材料并使挤出材料处于风冷机构、冷风机构的工作范围；储线机构包括储线轮；收卷机构包括收卷轴。本发明的冷却装置包括依次连接的风冷机构、冷风机构,降低产品的冷却距离,减少设备长度、提升出料速度的的目的。(The invention discloses a high-temperature 3D printing consumable production device which comprises an extrusion mechanism, an air cooling mechanism, a cold air mechanism, an extrusion material traction mechanism, a wire storage mechanism and a winding mechanism which are sequentially connected; the extruding mechanism comprises a hopper, an extruder barrel and a barrel heater, the discharge end of the hopper is connected with the extruder barrel, an extruder screw is arranged in the extruder barrel, the extruder screw is sequentially connected with the barrel heater and an extruder die, and the extruder die is provided with an extruder nozzle; the air cooling mechanism comprises an air blower and an air cooling platform communicated with the air blower; the cold air mechanism comprises an air cooler and a cold air groove communicated with the air cooler; extruding material traction mechanism: pulling the extruded material and enabling the extruded material to be in the working range of the air cooling mechanism and the cold air mechanism; the wire storage mechanism comprises a wire storage wheel; the winding mechanism comprises a winding shaft. The cooling device comprises an air cooling mechanism and a cold air mechanism which are connected in sequence, and aims to reduce the cooling distance of products, reduce the length of equipment and improve the discharging speed.)

1. The utility model provides a high temperature 3D printing consumables apparatus for producing which characterized in that: comprises an extrusion mechanism, an air cooling mechanism, a cold air mechanism, an extrusion material traction mechanism, a wire storage mechanism and a winding mechanism which are connected in sequence;

the extruding mechanism comprises a hopper (3), an extruder screw cylinder (9) and a screw cylinder heater (11), the discharge end of the hopper (3) is connected to the extruder screw cylinder (9), an extruder screw (10) is arranged in the extruder screw cylinder (9), the extruder screw (10) is sequentially connected with the screw cylinder heater (11) and an extruder die (12), and the extruder die (12) is provided with an extruder nozzle (13);

the air cooling mechanism comprises an air blower and an air cooling platform communicated with the air blower;

the cold air mechanism comprises an air cooler (26) and a cold air groove (25) communicated with the air cooler (26);

extruding material traction mechanism: pulling the extruded material and enabling the extruded material to be in the working range of the air cooling mechanism and the cold air mechanism;

the wire storage mechanism comprises a wire storage wheel (28);

the winding mechanism comprises a winding shaft (44).

2. The high-temperature 3D printing consumable production device according to claim 1, wherein: the extruding mechanism further comprises a hopper type drying machine (1), and the hopper type drying machine (1) is connected to the hopper (3) through a vacuum suction machine (2).

3. The high-temperature 3D printing consumable production device according to claim 1, wherein: the air cooling mechanism comprises a front air cooling mechanism and a rear air cooling mechanism, the front air cooling mechanism comprises a front air distribution bag (16) and a front air cooling platform (14), and the front air distribution bag (16) is communicated with the front air cooling platform (14); the rear air cooling mechanism comprises a rear air distribution bag (22) and a rear air cooling platform (20), and the rear air distribution bag (22) is communicated with the rear air cooling platform (20).

4. The high-temperature 3D printing consumable production device according to claim 3, wherein: preceding forced air cooling platform (14), back forced air cooling platform (20) all include well flute pipe (46) and set up in left flute pipe (48), right flute pipe (50) of well flute pipe (46) both sides, well flute pipe (46), left flute pipe (48), right flute pipe (50) switch on in bottom, left side, the right side of deflector (52) through well fan housing (47), left fan housing (49), right fan housing (51) respectively, deflector (52) are used for through extruded material (53).

5. The high-temperature 3D printing consumable production device according to claim 1, wherein: the air cooler (26) is also provided with a heat exchanger, and the heat exchanger is conducted to low-temperature circulating water and air flow generated by the air cooler (26).

6. The high-temperature 3D printing consumable production device according to claim 1, wherein: the wire storage mechanism further comprises a wire storage tension mechanism and a wire storage frame (27), the number of the wire storage wheels (28) is two, the two wire storage wheels (28) are connected to the wire storage frame (27), and the wire storage tension mechanism is used for driving the two wire storage wheels (28) to slide relatively along the wire storage frame (27).

7. The high-temperature 3D printing consumable production device according to claim 6, wherein: the wire storage tension mechanism comprises a wire storage tension motor (29), a tension steel cable drum wheel (30) and a tension steel cable (31), the power output end of the wire storage tension motor (29) is connected with the tension steel cable drum wheel (30), and the tension steel cable drum wheel (30) pulls the wire storage wheel (28) through the tension steel cable (31).

8. The high-temperature 3D printing consumable production device according to claim 3, wherein: still be equipped with preceding laser diameter gauge (19) between preceding air-cooled mechanism, the back air-cooled mechanism, extrusion material drive mechanism includes traction motor (34), preceding laser diameter gauge (19) are connected in traction motor (34)'s rotational speed control device.

9. The high-temperature 3D printing consumable production device according to claim 1, wherein: still be equipped with between rolling axle (44) and the line storage mechanism and be used for calculating the metering wheel (35) of extruding material length, still be equipped with between metering wheel (35) and rolling axle (44) and cut a filament sword (38) and be used for measuring back laser diameter gauge (37) of material external diameter.

10. The high-temperature 3D printing consumable production device according to claim 1, wherein: the extruding material traction mechanism comprises a four-roller tractor (32), a tractor press roller (33) and a traction motor (34), wherein the traction motor (34) is used for driving the four-roller tractor (32) and the tractor press roller (33) to rotate.

Technical Field

The invention relates to the technical field of 3D printing consumable production equipment, in particular to a high-temperature 3D printing consumable production device.

Background

At present, the 3D printing technology is widely applied in the field of industrial science and technology; high-temperature special engineering plastics represented by polyether-ether-ketone (PEEK) resin have super-strong mechanical property and chemical stability; for twenty years, the material is widely applied to the high-end mechanical and electronic industry, the nuclear industry, the automobile industry, in particular to the technical fields of aerospace and the like.

However, in the 3D printing industry, due to the high melting point, high viscosity and other characteristics of such materials, the temperature required for heating is high, and the time required for cooling is long, so that the production efficiency is not high, the equipment size is large, and the yield is not high.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a high-temperature 3D printing consumable production device which solves the technical problems that in the prior art, the 3D printing consumable is large in equipment size, low in production efficiency and difficult in guarantee of yield due to the fact that the cooling speed is low due to high temperature.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a high temperature 3D printing consumables apparatus for producing which characterized in that: comprises an extrusion mechanism, an air cooling mechanism, a cold air mechanism, an extrusion material traction mechanism, a wire storage mechanism and a winding mechanism which are connected in sequence;

the extruding mechanism comprises a hopper, an extruder barrel and a barrel heater, the discharge end of the hopper is connected with the extruder barrel, an extruder screw is arranged in the extruder barrel, the extruder screw is sequentially connected with the barrel heater and an extruder die, and the extruder die is provided with an extruder nozzle;

the air cooling mechanism comprises an air blower and an air cooling platform communicated with the air blower;

the cold air mechanism comprises an air cooler and a cold air groove communicated with the air cooler;

extruding material traction mechanism: pulling the extruded material and enabling the extruded material to be in the working range of the air cooling mechanism and the cold air mechanism;

the wire storage mechanism comprises a wire storage wheel;

the winding mechanism comprises a winding shaft.

Preferably, the aforementioned high-temperature 3D printing consumable production device: the extruding mechanism further comprises a hopper type dryer, and the hopper type dryer is connected to the hopper through a vacuum suction machine.

Preferably, the aforementioned high-temperature 3D printing consumable production device: the air cooling mechanism comprises a front air cooling mechanism and a rear air cooling mechanism, the front air cooling mechanism comprises a front air distribution bag and a front air cooling platform, and the front air distribution bag is communicated with the front air cooling platform; the rear air cooling mechanism comprises a rear air distribution bag and a rear air cooling platform, and the rear air distribution bag is communicated with the rear air cooling platform.

Preferably, the aforementioned high-temperature 3D printing consumable production device: the front air cooling table and the rear air cooling table respectively comprise a middle flute pipe, a left flute pipe and a right flute pipe which are arranged on two sides of the middle flute pipe, the left flute pipe and the right flute pipe are respectively communicated with the bottom, the left side and the right side of the guide plate through a middle fan cover, a left fan cover and a right fan cover, and the guide plate is used for extruding materials.

Preferably, the aforementioned high-temperature 3D printing consumable production device: the air cooler is also provided with a heat exchanger which is conducted on the low-temperature circulating water and the air flow generated by the air cooler.

Preferably, the aforementioned high-temperature 3D printing consumable production device: the wire storage mechanism further comprises two wire storage tension mechanisms and a wire storage frame, the two wire storage wheels are connected to the wire storage frame, and the wire storage tension mechanisms are used for driving the two wire storage wheels to slide relatively along the wire storage frame.

Preferably, the aforementioned high-temperature 3D printing consumable production device: the wire storage tension mechanism comprises a wire storage tension motor, a tension steel cable drum wheel and a tension steel cable, wherein the power output end of the wire storage tension motor is connected with the tension steel cable drum wheel, and the tension steel cable drum wheel pulls the wire storage wheel through the tension steel cable.

Preferably, the aforementioned high-temperature 3D printing consumable production device: and a front laser diameter measuring instrument is further arranged between the front air cooling mechanism and the rear air cooling mechanism, the extrusion material traction mechanism comprises a traction motor, and the front laser diameter measuring instrument is connected to a rotating speed control device of the traction motor.

Preferably, the aforementioned high-temperature 3D printing consumable production device: a metering wheel used for calculating the length of the extruded material is also arranged between the winding shaft and the wire storage mechanism, and a shredding knife and a rear laser diameter gauge used for measuring the outer diameter of the material are also arranged between the metering wheel and the winding shaft.

Preferably, the aforementioned high-temperature 3D printing consumable production device: the extruding material traction mechanism comprises a four-roller tractor, a tractor compression roller and a traction motor, and the traction motor is used for driving the four-roller tractor and the tractor compression roller to rotate.

The invention achieves the following beneficial effects:

the cooling device comprises an air cooling mechanism and a cold air mechanism which are connected in sequence, wherein the two cooling mechanisms can quickly reduce the temperature of the product, reduce the cooling distance of the product and achieve the purposes of reducing the length of equipment and improving the discharging speed. Wherein air cooling mechanism includes preceding air cooling mechanism and back air cooling mechanism to air cooling mechanism can cool off the three face of extruding the material simultaneously, and can make the extruding material be in suspension or half suspension state when refrigerated, reduces the resistance that the product gos forward. The cold air mechanism exchanges heat with air flow through low-temperature circulating water, and sprays gas lower than normal temperature to further cool products.

The wire storage mechanism temporarily winds and stores the products flowing from the front onto the two wire storage wheels before the products are sent to the winding mechanism, so that the production continuity is kept when the disks are fully wound and changed.

The front laser diameter measuring instrument can monitor the outer diameter of a product in real time, when the outer diameter is larger and is still in a cooling stage, the product can be stretched or contracted through the front and rear speed difference, the outer diameter of the product can be adjusted in real time, closed-loop control is realized, the final outer diameter of the product can be detected through the rear laser diameter measuring instrument, and the yield is guaranteed while the production efficiency is improved.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the air cooling station of the present invention; a

FIG. 3 is a schematic view of the air-cooled table of the present invention;

the meaning of the reference numerals: 1-hopper dryer: 2-vacuum suction machine: 3-a hopper; 7-a screw motor; 8-a gearbox; 9-extruder barrel; 10-extruder screw; 11-a barrel heater; 12-extruder die; 13-extruder nozzle; 14-front air cooling table; 15-front wind pipe; 16-front air distribution bag; 18-front blower; 19-front laser diameter measuring instrument; 20-rear air cooling table; 21-rear air duct; 22-rear air distribution bag; 23-rear blower; 25-a cold air groove; 26-an air cooler; 27-a wire storage rack; 28-a wire storage wheel; 29-a wire storage tension motor; 30-a tensile wire drum; 31-a tensile steel cord; 32-a four-roll tractor; 33-tractor press rolls; 34-a traction motor; 35-a metering wheel; 36-a clamping wheel; 37-rear laser diameter gauge; 38-a shredding knife; 43-flat cable reciprocating mechanism; 44-a winding shaft; 45-wire coil; 46-middle flute; 47-middle wind cover; 48-left flute tube; 49-left wind cover; 50-right flute tube; 51-right fan cover; 52-a guide plate; 53-extrusion of the material.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

This embodiment discloses a high temperature 3D printing consumables apparatus for producing: the device comprises an extrusion mechanism, an air cooling mechanism, a cold air mechanism, an extrusion material traction mechanism, a wire storage mechanism and a winding mechanism which are sequentially connected, wherein the sequential connection refers to the arrangement according to the processing sequence of products.

The extruding mechanism comprises a hopper 3, an extruder barrel 9 and a barrel heater 11, the discharge end of the hopper 3 is connected with the extruder barrel 9, an extruder screw 10 is arranged in the extruder barrel 9, the extruder screw 10 is sequentially connected with the barrel heater 11 and an extruder die 12, and the extruder die 12 is provided with an extruder nozzle 13.

Preferably, in order to dry the granular plastic raw material, the extrusion mechanism of the present embodiment further includes a hopper dryer 1, and the hopper dryer 1 is connected to a hopper 3 through a vacuum feeder 2 and supplies the hopper 3 with the material.

The air cooling mechanism comprises an air blower and an air cooling table communicated with the air blower, the air cooling mechanism of the embodiment comprises a front air cooling mechanism and a rear air cooling mechanism, the two air cooling mechanisms are basically the same in structure and composition, and the biggest difference is that the two air cooling mechanisms are different in position relative to the extrusion mechanism. The method specifically comprises the following steps: the front air cooling mechanism comprises a front air distribution bag 16 and a front air cooling platform 14, the front air distribution bag 16 is communicated with the front air cooling platform 14, and the front air distribution bag 16 and the front air cooling platform can be connected through a front air pipe 15. The rear air cooling mechanism comprises a rear air distribution bag 22 and a rear air cooling platform 20, the rear air distribution bag 22 is communicated with the rear air cooling platform 20, and the rear air distribution bag 22 and the rear air cooling platform can be connected through a rear air pipe 21. The front air distribution bag 16 and the rear air distribution bag 22 are both communicated with corresponding fans, which can be a front blower 18 and a rear blower 23 respectively.

Specifically, with reference to fig. 2 and 3: the structure of the air cooling platform of the embodiment is as follows: the two air cooling platforms respectively comprise a middle flute pipe 46, and a left flute pipe 48 and a right flute pipe 50 which are arranged on two sides of the middle flute pipe 46, wherein the middle flute pipe 46, the left flute pipe 48 and the right flute pipe 50 are respectively communicated with the bottom, the left side and the right side of a guide plate 52 through a middle fan cover 47, a left fan cover 49 and a right fan cover 51, the guide plate 52 is used for extruding materials 53, and the left side and the right side are two side parts of the guide plate 52. The direction of the arrows in fig. 2 indicates the direction of the air flow, and it can be seen that: the airflow in the three directions can cool the bottom and both sides of the extruded material 53 at the same time, accelerating the cooling speed of the extruded material 53; further, the cooling air flow can generate an upward thrust to the extruded material 53 to be in a suspended or semi-suspended state, thereby reducing the friction between the extruded material 53 and the guide plate 52.

The cold air mechanism comprises an air cooler 26 and a cold air slot 25 communicated with the air cooler 26; the air cooler 26 is provided with a heat exchanger, and the heat exchanger conducts the air flow generated by the low-temperature circulating water and the air cooler 26, that is, the heat exchanger can realize the heat exchange between the low-temperature circulating water and the air flow, so that the air flow sprayed out of the interior of the cold air duct 25 is lower than the normal-temperature air, and is used for further cooling the extruded material 53.

Above-mentioned air-cooled mechanism, cold wind mechanism cool off extrusion material 53 in proper order, possess certain toughness when extrusion material 53 self, and the thrust that can't rely on extruder to penetrate 13 to produce walks forward long distance, consequently still is equipped with extrusion material drive mechanism at the rear end of cold wind mechanism: the extruded material is pulled and is positioned in the working range of the air cooling mechanism and the cold air mechanism, namely, the extruded material can be positioned at the central cooling position of the cold air platform and the cold air groove 25.

The wire storage mechanism comprises a wire storage wheel 28; preferably, the wire storage mechanism further comprises a wire storage tension mechanism and a wire storage frame 27, the number of the wire storage wheels 28 is two, the two wire storage wheels 28 are connected to the wire storage frame 27, the wire storage tension mechanism is used for driving the two wire storage wheels 28 to slide relatively along the wire storage frame 27, the distance between the two wire storage wheels 28 is adjusted through the relative sliding, and the length of the wire storage is adjusted. The wire storage tension mechanism comprises a wire storage tension motor 29, a tension steel cable drum wheel 30 and a tension steel cable 31, the power output end of the wire storage tension motor 29 is connected with the tension steel cable drum wheel 30, and the tension steel cable drum wheel 30 pulls the distance between the two wire storage wheels 28 to change through the tension steel cable 31, so that the adjustment of the wire storage length is realized.

The winding mechanism comprises a winding shaft 44, a wire disc 45 is further arranged on the winding shaft 44, and the winding shaft 44 drives the wire disc 45 to rotate so as to collect the extruded materials 53.

Since the 3D printing apparatus has a requirement for the tolerance of the outer diameter of the extruded material 53, the present embodiment further includes an extruded material outer diameter measuring and adjusting device, including the front laser diameter measuring instrument 19 and the rear laser diameter measuring instrument 37. The front laser diameter measuring instrument 19 is arranged between the front air cooling mechanism and the rear air cooling mechanism, the front laser diameter measuring instrument 19 is connected to a rotating speed control device of the traction motor 34, and the system adjusts the rotating speed of the traction motor 34 according to the outer diameter information of the product measured by the front laser diameter measuring instrument 19 and is used for stretching the uncured product. Specifically, when the product is in the cooling stage (located in the air cooling table and the cold air duct 25), and the outer diameter of the product measured by the front laser diameter measuring instrument 19 is larger, the rotating speed of the traction motor 34 is increased to stretch the product, and otherwise, the rotating speed of the traction motor 34 is appropriately reduced. The extruding material traction mechanism further comprises a four-roller tractor 32, a tractor press roller 33 and a traction motor 34, wherein the traction motor 34 is used for driving the four-roller tractor 32 and the tractor press roller 33 to rotate, and the product is stretched.

A metering wheel 35 used for calculating the length of the extruded material is further arranged between the winding shaft 44 and the wire storage mechanism, a wire cutter 38 is further arranged between the metering wheel 35 and the winding shaft 44, and the rear laser diameter gauge 37 is arranged between the metering wheel 35 and the wire cutter 38. The metering wheel 35 is used to count the length of the product and the shredding knife 38 is used to sever the product. The rear laser diameter gauge 37 is used for detecting whether the outer diameter of the rolled product meets the requirement.

When the machine works, plastic particles are dried by a hopper type dryer 1, the plastic particles sequentially enter a hopper 3, an extruder screw 10 and a plurality of screw barrel heaters 11 (a plurality of the screw barrel heaters can be arranged) under the action of a vacuum suction machine 2, the plastic particles are heated in the screw barrel heaters 11 and are gradually melted into a melt through the heat conducted by the screw barrels in the propelling process, stable internal pressure is formed in the inner cavity of an extruder die 12 and is discharged through an extruder nozzle 13, then an extruded material 53 enters a cooling forming stage and sequentially enters a winding shaft 44 through a front air cooling table 14, a front laser diameter measuring instrument 19, a rear air cooling table 20, a cold air groove 25, a four-roller tractor 32, a tractor press roller 33, a wire storage wheel 28, a metering wheel 35, a clamping wheel 36, a rear laser diameter measuring instrument 37, a wire cutting knife 38 and finally a wire arranging reciprocating mechanism 43, the wire arranging reciprocating mechanism 43 is used for guiding a product, the products are arranged in sequence on a wire tray 45.

Compared with the prior art, the method can complete the whole processing process of the product from raw materials to finished products.

The cooling device of this embodiment is including the air-cooled mechanism, the cold wind mechanism that connect gradually, and two kinds of cooling body can make the product temperature reduce rapidly, reduce the cooling distance of product, reach the purpose that reduces equipment length, promote ejection of compact speed. The air cooling mechanism comprises a front air cooling mechanism and a rear air cooling mechanism, the air cooling mechanism can cool three surfaces of the extrusion material 53 at the same time, the extrusion material 53 can be in a suspension or semi-suspension state during cooling, and the advancing resistance of a product is reduced. The cold air mechanism exchanges heat with air flow through low-temperature circulating water, and sprays gas lower than normal temperature to further cool products.

The wire storage mechanism temporarily winds and stores the products flowing from the front onto the two wire storage wheels 28 before the products are sent to the winding mechanism, so that the production continuity is maintained when the reel is fully wound (the wire reel 45 is replaced).

The external diameter of preceding laser diameter measuring instrument 19 ability real-time supervision product of this embodiment, when the external diameter is great and still be in the cooling stage, the speed difference around the accessible stretches or contracts the product, realizes the real-time adjustment to the product external diameter, realizes closed-loop control, and back laser diameter measuring instrument 37 can also detect final product external diameter, guarantees the yields when promoting production efficiency.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.