CN206605786U - A kind of 3D printing rapidform machine has the material cylinder of quantitative blanking function - Google Patents

Abstract

The utility model is related to rapid shaping technique field, more particularly to a kind of 3D printing rapidform machine has the material cylinder of quantitative blanking function, lower half including material cylinder described in material cylinder is provided with inclined side plate, the material device that shakes is installed on inclined side plate, expect that the top of cylinder is provided with the cylinder cap of rotatable folding, the charging aperture for being connected with charging line is offered on the cylinder cap, with being provided with observation window on the side wall of side plate homonymy on the first half of powder, observation window is also equipped with the side plate of the latter half of material cylinder, the lower end of the material cylinder is provided with the discharging opening of strip, the discharge outlet is provided with doffer.The doffer that dock with laying device is installed in the utility model in the lower end of material cylinder, the doffer can according to the need for 3D printing into power spreading device conveying set amount dusty material, to avoid feeding from excessively causing the waste of material.

Description

A kind of 3D printing rapidform machine has the material cylinder of quantitative blanking function

Technical field

The utility model is related to rapid shaping technique field, and more particularly to a kind of 3D printing rapidform machine has quantitatively to fall Expect the material cylinder of function.

Background technology

Rapid shaping technique is also known as rapid prototyping manufacturing (Rapid Prototyping Manufacturing, abbreviation RPM) Technology, is born in the late 1980s, is a kind of high-new manufacturing technology based on material stacking method, it is considered to be nearly 20 years To manufacture a great achievement in field.It collect mechanical engineering, CAD, reverse Engineering Technology, Layered Manufacturing Technology, Numeric Control Technology, Design philosophy, automatically, directly, quickly and accurately can be changed into certain function by material science, laser technology Prototype or direct manufacturing parts so that for provided in terms of part prototype, the verification of new design philosophy it is a kind of efficiently The realization rate of low cost.That is, RP technique is exactly the data using three-dimensional CAD, will from level to level by rapidform machine Material stacking into physical prototypes.

It is, it is necessary to quantitatively be controlled material, to ensure stone to manufacture product or mould using rapid shaping technique Dusty material is uniformly laid on print platform by device, and the waste of material is avoided as far as possible.

Utility model content

The purpose of this utility model, which is there is provided a kind of 3D printing rapidform machine to have in view of the shortcomings of the prior art, determines The material cylinder of blanking function is measured, the lower end of the material cylinder is provided with the doffer docked with laying device, and the doffer can root The dusty material of set amount is conveyed the need for according to 3D printing into power spreading device, to avoid feeding from excessively causing the waste of material.

To solve the above problems, the utility model provides following technical scheme：A kind of 3D printing rapidform machine has fixed The material cylinder of blanking function is measured, including the lower half of material cylinder described in material cylinder is provided with inclined side plate, inclined side plate and is provided with the material dress that shakes Put, the top of material cylinder is provided with the charging aperture offered on the cylinder cap of rotatable folding, the cylinder cap for being connected with charging line, powder On the first half of material observation is also equipped with being provided with the side wall of side plate homonymy on observation window, the side plate of the latter half of material cylinder Window, the lower end of the material cylinder is provided with the discharging opening of strip, and the discharge outlet is provided with doffer.

Further, the doffer includes housing, feeding disk roller and disk roller motor, and the housing passes through spiral shell The mounting bar of discharge outlet of the bolt with expecting cylinder is fixedly connected, and feeding disk roller is horizontal in housing, the feeding disk roller Length with expect cylinder strip discharging opening length it is consistent, several are evenly distributed with the outer wall of feeding disk roller along its axle To the stock chest of extension, the upper end of housing is provided with charging window, and its lower end is provided with blanking window, and one end of feeding disk roller is worn Go out housing to be connected with disk roller motor, disk roller motor is fixedly mounted on material cylinder.

Further, there are the material blocking block positioned at feeding disk roller both sides, the gear close to the position of charging window in the housing Material block is string configuration, and backgauge block length is at least identical with the length that feeding disk roller is placed in shell body.

Further, the friction plate being slidably matched with feeding disk roller outer wall, the friction plate and feeding are installed on material blocking block The contact surface circle of position cylinder of disk roller.

Further, the position of blanking window is provided with the scraper dress positioned at feeding disk roller side in the housing Put, the row brush arranged along feeding disk roller length direction is provided with the scraper.

Further, the bottom land of the stock chest is arc-shaped structure.

Beneficial effect：A kind of 3D printing rapidform machine of the present utility model has the material cylinder of quantitative blanking function, expects cylinder Lower end the doffer docked with laying device is installed, the doffer can according to the need for 3D printing to power spreading device The dusty material of interior conveying set amount, to avoid feeding from excessively causing the waste of material.

Brief description of the drawings

Fig. 1 is dimensional structure diagram of the present utility model；

Fig. 2 is side view of the present utility model；

Fig. 3 is top view of the present utility model；

Fig. 4 is the cooperation position schematic diagram that material cylinder and laying device are loaded in the utility model；

Fig. 5 is the dimensional structure diagram one of material cylinder in the utility model；

Fig. 6 is the dimensional structure diagram two of material cylinder in the utility model；

Fig. 7 is the sectional view of material cylinder in the utility model；

Fig. 8 is the dimensional decomposition structure diagram one of material cylinder in the utility model；

Fig. 9 is the dimensional decomposition structure diagram two of material cylinder in the utility model；

Figure 10 is the enlarged diagram at A in Fig. 7；

Figure 11 is the dimensional decomposition structure diagram of doffer in the utility model；

Figure 12 is the three-dimensional broken section structural representation of feeding disk roller in the utility model；

Figure 13 is the dimensional decomposition structure diagram of material blocking block in the utility model；

Figure 14 is the cooperation position schematic diagram of printing stone lazy-tongs and material cylinder under installment state in the utility model；

Figure 15 is the scheme of installation of printing stone lazy-tongs in the utility model；

Figure 16 is the dimensional structure diagram of laying device in the utility model；

Figure 17 is powder reclaiming device and the signal of the cooperation position of Z axis drive device under installment state in the utility model Figure；

Figure 18 is the dimensional structure diagram of powder reclaiming device and Z axis drive device in the utility model；

Figure 19 is the dimensional structure diagram one of powder reclaiming device in the utility model；

Figure 20 is the dimensional structure diagram two of powder reclaiming device in the utility model；

Figure 21 is the dimensional decomposition structure diagram of powder reclaiming device in the utility model；

Figure 22 is the sectional perspective cross section structure diagram in interim material cabin in the utility model；

Description of reference numerals：Lower bearing bracket 1, upper spider 2, side frame 3, Y-axis driving guide rail 4, Y-axis slide unit 4a, X-axis driving is led Rail 5, horizontal mounting plate 5a, support 5b, Z axis drive device 6, rectangular cover 6a, print platform 7, print head assembly 8, doffer 9, housing 9a, feed window 9a1, blanking window 9a2, feeding disk roller 9b, stock chest 9b1, disk roller motor 9c, material blocking block 9d, friction plate 9d1, scraper 9e, row brush 9e1, laying device 10, stone box 10a, powdering mouthful 10a1, binder surface 10a2 are pushed away Charge level 10a3, connecting plate 10b, powder laying platform 11, side shield 11a, end-stopping plate 11b, print window 11c, powder recovery port 11d, interim material cabin 12, the first nacelle 12a, the second nacelle 12b, the 3rd nacelle 12c, the 4th nacelle 12d, the 5th nacelle 12e, on Cover plate 12f, pipe joint 12g, expect cylinder 13, inclined side plate 13a, observation window 13b, cylinder cap 13c shake and expect device 14, oscillating plate 14a。

Embodiment

With reference to Figure of description and embodiment, specific embodiment of the utility model is described in further detail：

Referring to figs. 1 to a kind of 3D printing rapidform machine based on precoated sand material shown in Fig. 4, including frame, material cylinder 13rd, printing transmission device, printing stone lazy-tongs and powder reclaiming device, frame include lower bearing bracket 1, upper spider 2 and side Frame 3, the printing transmission device is included provided with Y-axis driving guide rail 4, X-axis driving guide rail 5 and Z axis drive device 6, and Y-axis driving is led Rail 4 is fixedly mounted on upper spider 2, and X-axis driving guide rail 5 is arranged on Y-axis driving guide rail 4, and Z axis drive device 6 is arranged on upper Between frame 2 and lower bearing bracket 1, it is provided with the Z axis drive device 6 horizontally disposed and can be in beating that Z-direction direction is moved Platform 7 is printed, printing stone lazy-tongs include being arranged on the print head assembly 8 that can be moved along X-direction on X-axis driving guide rail 5 And the laying device 10 on guide rail 4 is driven installed in Y-axis, laying device 10 be arranged in parallel and in Y with X-axis driving guide rail 5 It is synchronized with the movement on direction of principal axis with X-axis driving guide rail 5, material cylinder 13 is arranged on side frame 3 in vertical state, expects going out for the bottom of cylinder 13 Doffer 9 is installed, laying device 10 is when Y direction is moved to below material cylinder 13 just to doffer 9 at material mouth Lower end, powder reclaiming device is arranged on upper spider 2 and wraps Y-axis driving guide rail 4, and powder reclaiming device is provided with horizontally disposed Powder laying platform 11, powder laying platform 11 is provided with the print window 11c being located at directly over print platform 7, powder paving If the lower section of platform 11 is provided with the interim material cabin 12 for being centered around the periphery of Z axis drive device 6.

Reference picture 4 is installed to shown in Fig. 9, the lower half of the material cylinder 13 is provided with inclined side plate 13a, inclined side plate 13a There is the material device 14 that shakes, the material device 14 that shakes is provided with the oscillating plate 14a being inserted into inside material cylinder 13, the material driving vibration of device 14 of shaking Plate 14a is vibrated with certain frequency, the discharging to enable the precoated sand material in material cylinder 13 to move downward and by expecting cylinder 13 Mouth is entered in doffer 9, it is to avoid the precoated sand material of the material discharging opening of cylinder 13 is excessively closely knit and smoothly can not enter Expect in device 9, stone is smooth in packet printing process.

The top of the material cylinder 13, which is provided with to offer on the cylinder cap 13c of rotatable folding, cylinder cap 13c, to be used for and feed pipe The charging aperture of road connection.

With being provided with observation window 13b on the side wall of side plate homonymy on the first half of the powder, observation window 13b is used for people Doses in work observation material cylinder 13, is mainly used for artificial positioned at the observation window of top half when print job preparation is started The doses being initially added in observation material cylinder 13.

The observation window being also equipped with the side plate of the latter half of the material cylinder 13 on observation window 13b, side plate is equally used for Doses in observation material cylinder 13, to supplement precoated sand material in time when expecting that doses is not enough in cylinder 13.

The lower end of the material cylinder 13 is provided with the discharging opening of strip, and the edge of the discharging opening, which is provided with, to be used to install blanking dress Put 9 mounting bar, the feed end of doffer 9 is fixedly connected by bolt with mounting bar, with cause the inner chamber of doffer 9 with Expect the inner chamber connection of cylinder 13.

The doffer 9 includes housing 9a, feeding disk roller 9b and disk roller motor 9c, the housing 9a pass through spiral shell The mounting bar of discharge outlet of the bolt with expecting cylinder 13 is fixedly connected, and feeding disk roller 9b is horizontal in housing 9a, and this send Expect that the length of the discharging opening of strip of the disk roller 9b length with expecting cylinder 13 is consistent, be evenly distributed with feeding disk roller 9b outer wall Several are provided with charging window 9a1 along its axially extending stock chest 9b1, housing 9a upper end, and its lower end is provided with blanking Window 9a2, feeding disk roller 9b one end pass housing 9a and disk roller motor 9c and are connected.

The disk roller motor 9c can be directly installed on housing 9a, in order to improve the module of the doffer 9 Change, be easy to it to realize integral demounting relative to material cylinder 13.

Certainly, disk roller motor 9c can also be arranged on material cylinder 13 or side frame 3, and disk roller motor 9c's is defeated Go out end to be connected with the belt wheel transmission installed in feeding disk roller 9b ends by timing belt.

There are the material blocking block 9d positioned at feeding disk roller 9b both sides, the gear close to charging window 9a1 position in the housing 9a It is string configuration to expect block 9d, and backgauge block length 9d is at least identical with the length that feeding disk roller 9b is placed in shell body.Material blocking block 9d effect is to prevent precoated sand material from directly entering after entering in housing 9a without quantitative control by blanking window 9a2 Into laying device 10, make the thickness of stone uncontrollable, be that material recovery brings pressure while causing the waste of material.

It should be noted that due to being provided with stock chest 9b1 on feeding disk roller 9b, and material blocking block 9d effect is to prevent from covering Film sand material material is directly from feeding disk roller 9b two lateral blanking window 9a2 directions motions, rather than only by stock chest 9b1 realities Now to should avoid leaving gap between the quantitative conveying in blanking window 9a2 directions, therefore material blocking block 9d and feeding disk roller 9b, and Due to being provided with stock chest 9b1 on feeding disk roller 9b, slide and rub with it if material blocking block 9d abuts directly on feeding disk roller 9b outer walls Wipe, stock chest 9b1 edge will certainly be caused to wear and tear or burst apart, and then cause stock chest 9b1 capacity to change, lead Cause the uncontrollable of stock chest 9b1 storing amounts.

Therefore, the friction plate 9d1 being slidably matched with feeding disk roller 9b outer walls, friction plate 9d1 are installed on material blocking block 9d With feeding disk roller 9b contact surface circle of position cylinder.Friction plate 9d1 material can be for rubber, plastics or with self-lubricating function Nylon material.

Further, rotated one week with feeding disk roller 9b, the amount of the precoated sand material of all stock chest 9b1 transports is once Blanking amount, if moved in blanking operation lower section stock chest 9b1 in there is a small amount of precoated sand to be attached in groove can not be smooth Entered by blanking window 9a2 in laying device 10, then the blanking amount of doffer 9 can be made unstable.

Therefore, the scraper positioned at feeding disk roller 9b sides is provided with the housing 9a close to blanking window 9a2 position The row brush 9e1 arranged along feeding disk roller 9b length directions is provided with device 9e, scraper 9e, row brush 9e1 is used for will The material not dropped in stock chest 9b1 is scraped off, to have ensured that the blanking amount of doffer 9 is stable.Row brush 9e1 can be hairbrush It is made or other materials is made.

Further, although precoated sand can will be adhered to by scraper 9e in stock chest 9b1 and scraped off, certainly still It is necessary to optimize design to stock chest 9b1 trough body structure, so that precoated sand is not easy be attached in stock chest 9b1, Remained coordinating with not having precoated sand material in scraper 9e packaging stock chests 9b1.

Therefore, the bottom land of the stock chest 9b1 is arc-shaped structure.There is no turning in the stock chest 9b1 of arc-shaped structure, Precoated sand would not be squeezed in the corner and can not smoothly fall.

On the necessity of stock chest 9b1 structure optimizations, it is provided with to slide with feeding disk roller 9b on useful material blocking block 9d and rubs The friction plate 9d1 of wiping, therefore have the stock chest 9b1 of precoated sand material when by friction plate 9d1 overlay areas, friction plate Precoated sand can be pressed in stock chest 9b1 by 9d1, if there is turning in stock chest 9b1, the precoated sand of corner is not easy Fall.

Reference picture 14 is to shown in Figure 16, and Y-axis driving guide rail 4 is double-rail configuration in the utility model, includes Y-axis first A Y-axis slide unit 4a is provided with by sliding block respectively on track and the track of Y-axis second, the track of Y-axis first and the track of Y-axis second, A horizontal mounting plate 5a is had between two Y-axis slide unit 4a, horizontal mounting plate 5a length direction is perpendicular to Y-axis side To X-axis driving guide rail 5 is arranged on horizontal mounting plate 5a, and the two ends of laying device 10 are fixed with a Y-axis slide unit 4a respectively Connection.

The support 5b that can be moved in Y direction is installed, print head assembly 8 is arranged on should on the X-axis driving guide rail 5 On support 5b.

The laying device 10 includes the stone box 10a of open upper end and the connection installed in stone box 10a two ends Plate 10b, each connecting plate 10b are fixedly connected with a Y-axis slide unit 4a respectively, and stone box 10a lower end is provided with a strip Powdering mouthful 10a1.

In order to ensure that precoated sand can be uniformly laid on powder laying platform 11 during stone, under stone box 10a End is designed as inverted trapezoidal structure, i.e., more down extension stone box 10a width is narrower, and inverted trapezoidal structure can ensure stone box 10a lower end has certain width, and to form binder surface 10a2, powdering mouthful 10a1 is located at binder surface 10a2 center line position Put, gap is that can only accommodate the thickness of one layer of precoated sand material, inverted trapezoidal knot between binder surface 10a2 and powder laying platform 11 Structure can also form the pusher face 10a3 positioned at the binder surface 10a2 left and right sides, and pusher face 10a3 is during stone along paving point Powder is laid precoated sand material unnecessary on platform 11 and pushed forward by the box direction of motion.

In order to which the precoated sand material ensured in stone box 10a smoothly can fall at powdering mouthful 10a1, stone box 10a With inner chamber wide at the top and narrow at the bottom, the most narrow width for powdering mouthful 10a1 in the inner chamber lower end.

Reference picture 17 is to shown in Figure 22, and powder reclaiming device includes two sides being fixedly mounted on powder laying platform 11 Baffle plate 11a and two end-stopping plate 11b, two side shield 11a are arranged on the inner side of Y-axis driving guide rail 4 and prolonged along Y direction Stretch, the spacing of two side shield 11a is more than range of the print head assembly 8 in X-direction, two end-stopping plate 11b difference Y-axis driving track rear and front end is arranged on, the distance between two end baffles are more than printing stone lazy-tongs in Y-axis side To range.

The region in two sidepiece baffle plates and two end baffle besieged cities is more than the zone of action of printing stone lazy-tongs, i.e., Print the region of stone, it is to avoid precoated sand material is scattering into outside equipment, it is to avoid waste of material, also allows for the recovery of material.

The print window 11c is located in the region that side shield 11a and end-stopping plate 11b encircles a city, and print window 11c is rectangle Window.

The Z axis drive device 6 is provided with the rectangular cover 6a being located at immediately below print window 11c, and rectangular cover 6a is by four Side plate is encircled a city, and print platform 7 is slidably fitted in rectangular cover 6a, provided with sealing between print platform 7 and rectangular cover 6a inwalls Bar.

The upper end of the rectangular cover 6a is inserted into print window 11c, and rectangular cover 6a upper surface and powder lay platform It is fitted close on the outside of 11 upper surface flush, rectangular cover 6a upper end between print window 11c.

The powder recovery port 11c on displacement print window 11c peripheries is provided with powder laying platform 11, it is described interim Expect the open upper end in cabin 12 and connected with powder recovery port 11c.

The interim material cabin 12, which includes, to be centered around on the outside of rectangular cover 6a and the first interconnected nacelle 12a, second Nacelle 12b, the 3rd nacelle 12c and the 4th nacelle 12d, the first nacelle 12a and the 3rd nacelle 12c be arranged in parallel, the second nacelle 12b It is be arranged in parallel with the 4th nacelle 12d, the second nacelle 12b and the 4th nacelle 12d bottom are tilted to the same side, the 3rd nacelle 12c bottom is domes, and the two ends of the domes are respectively to the second nacelle 12b and a high position for the 4th nacelle 12d bottoms Tilt, the low level of the second nacelle 12b and the 4th nacelle 12d bottoms is tilted to the first nacelle 12a sides.

Due to the design feature in whole interim material cabin 12, the precoated sand material for entering interim material cabin 12 is concentrated in first Nacelle 12a bottom, for the ease of reclaiming, be also provided with connecting with the first nacelle 12a in the first nacelle 12a bottom the Five nacelle 12e, the 5th nacelle 12e are inverted triangular structure, and the 5th nacelle 12e bottom is provided with for reclaiming overlay film sand material The pipe joint 12g of material.

The upper end in the interim material cabin 12 is also equipped with upper cover plate 12f, the first nacelle 12a, the second nacelle 12b, Three nacelle 12c and the 4th nacelle 12d upper end is opened wide, and is provided with upper cover plate 12f and the second nacelle 12b, the 3rd nacelle Powder recovery port 11c on the powder recovery port 11c of 12c and the 4th nacelle 12d connections, upper cover plate 12f lays platform with powder Powder recovery port 11c on 11 is corresponded, and all powder recovery port 11c are strip rectangular opening.

It is described above, only it is preferred embodiment of the present utility model, not technical scope of the present utility model is made Go out any limitation, thus it is every any trickle amendment made according to technical spirit of the present utility model to above example, equivalent Change and modification, in the range of still falling within the technical solution of the utility model.

Claims (6)

1. a kind of 3D printing rapidform machine has the material cylinder of quantitative blanking function, including material cylinder (13) is characterized in that：It is described Expect that the lower half of cylinder (13) is provided with inclined side plate (13a), inclined side plate (13a) and the material device (14) that shakes is installed, material cylinder (13) Top be provided with the cylinder cap (13c) of rotatable folding, the charging for being connected with charging line is offered on the cylinder cap (13c) Mouthful, with being provided with observation window (13b), the side plate of the latter half of material cylinder (13) on the side wall of side plate homonymy on the first half of powder On be also equipped with observation window (13b), the lower end of the material cylinder (13) is provided with the discharging opening of strip, and the discharge outlet is provided with Expect device (9).

2. a kind of 3D printing rapidform machine according to claim 1 has the material cylinder of quantitative blanking function, its feature exists In：The doffer (9) includes housing (9a), feeding disk roller (9b) and disk roller motor (9c), the housing (9a) It is fixedly connected by bolt with the mounting bar of the discharge outlet of material cylinder (13), feeding disk roller (9b) is horizontal installed in housing In (9a), the length of the feeding disk roller (9b) is consistent with the length of the discharging opening of the strip of material cylinder (13), feeding disk roller (9b) Outer wall on be evenly distributed with several along its axially extending stock chest (9b1), the upper end of housing (9a) is provided with charging window Mouth (9a1), its lower end is provided with blanking window (9a2), and one end of feeding disk roller (9b) passes housing (9a) and drives electricity with disk roller Machine (9c) is connected, and disk roller motor (9c) is fixedly mounted on material cylinder (13).

3. a kind of 3D printing rapidform machine according to claim 2 has the material cylinder of quantitative blanking function, its feature exists In：There is the material blocking block (9d) positioned at feeding disk roller (9b) both sides close to the position of charging window (9a1) in the housing (9a), should Material blocking block (9d) is string configuration, the length phase that material blocking block (9d) length is at least placed in shell body with feeding disk roller (9b) Together.

4. a kind of 3D printing rapidform machine according to claim 3 has the material cylinder of quantitative blanking function, its feature exists In：The friction plate (9d1) being slidably matched with feeding disk roller (9b) outer wall is installed on material blocking block (9d), the friction plate (9d1) with The contact surface circle of position cylinder of feeding disk roller (9b).

5. a kind of 3D printing rapidform machine according to claim 2 has the material cylinder of quantitative blanking function, its feature exists In：The position of close blanking window (9a2) is provided with the scraper positioned at feeding disk roller (9b) side in the housing (9a) The row brush (9e1) arranged along feeding disk roller (9b) length direction is provided with (9e), the scraper (9e).

6. a kind of 3D printing rapidform machine according to claim 1,2,3,4 or 5 has the material cylinder of quantitative blanking function, It is characterized in that：The bottom land of the stock chest (9b1) is arc-shaped structure.