阅读说明：本技术 多孔陶瓷3d打印机及多孔陶瓷成形方法 (Porous ceramic 3D printer and porous ceramic forming method ) 是由 李艳洁 汪云燕 寇英涛 胡昕平 *** 张琦 于 2019-11-13 设计创作，主要内容包括：本发明公开多孔陶瓷的3D打印机及成形方法,包括一个框形的机架,框架内设有升降平台,两侧设有丝杠螺母传动结构的升降机构,机架前后端设有滚筒,前端滚筒沉于粘接剂盒内,机架顶端设有激光发生器、控制器,机架顶部还设有能在任意位置进行切割的激光切割机构。前后方向和左右均设置有同步伺服电机和同步带等,保证激光头的前后左右方向的精确运动和定位,精确进行切割。第一反光镜盒和第二反光镜采用两次45度折射方式,将水平的激光器发射的激光折射入激光头内,使运动的激光头与固定的激光器始终成空间垂直。余料回收结构采用同步伺服电机与余料回收杆连接,保证进料的准确和连续,能够方便快捷地通过改技术制得形状复杂的多孔陶瓷。(The invention discloses a porous ceramic 3D printer and a forming method thereof, which comprises a frame, wherein a lifting platform is arranged in the frame, lifting mechanisms of a screw rod and nut transmission structure are arranged on two sides of the frame, rollers are arranged at the front end and the rear end of the frame, the roller at the front end is sunk in an adhesive box, a laser generator and a controller are arranged at the top end of the frame, and a laser cutting mechanism capable of cutting at any position is also arranged at the top of the frame. The front and back direction and the left and right sides are provided with synchronous servo motors, synchronous belts and the like, so that accurate movement and positioning of the laser head in the front, back, left and right directions are guaranteed, and cutting is accurately performed. The first reflector box and the second reflector adopt a 45-degree refraction mode twice, and laser emitted by the horizontal laser is refracted into the laser head, so that the moving laser head and the fixed laser are vertical in space all the time. The excess material recovery structure adopts a synchronous servo motor to be connected with the excess material recovery rod, so that the accuracy and continuity of feeding are ensured, and the porous ceramic with a complex shape can be conveniently and quickly prepared by changing the technology.)

1. Porous ceramic 3D printer, including frame (1) of a frame shape, its characterized in that, be equipped with lift platform (11) in the frame of frame (1), the lift platform (11) each side is equipped with 1 lead screw axle sleeve (17) and 2 slide bar axle sleeves (20), lead screw axle sleeve (17) endotheca is equipped with upright lead screw (16), both ends are fixed on frame (1) about lead screw (16), slide bar axle sleeve (20) endotheca is equipped with upright slide bar (18), both ends are fixed on frame (1) about slide bar (18), the connection of lead screw (16) lower extreme is equipped with elevator motor (30),

a pair of left and right horizontally-rolling front sponge transmission rollers (10) are arranged in the middle of the front end of the frame (1), an adhesive box (12) is arranged below the front sponge transmission rollers (10),

the left rear part of the top end of the rack (1) is provided with a laser generator (14) and a controller (31), the front and rear ends of the top part of the rack (1) are provided with 2 left and right horizontal transverse rods (23), the left and right transverse rods (23) are sleeved with a front top sliding sleeve (24) and a rear top sliding sleeve (27), the rear side of the front top sliding sleeve (24) is provided with a front and rear synchronous motor (24a), the rear top sliding sleeve (27) is provided with a front and rear rotating belt wheel (22), the left and right transverse rods (23) are provided with 2 left and right synchronous motors (26), the right end of the left and right transverse rods (23) is provided with 2 left and right rotating belt wheels (29), the left and right synchronous motors (26) are sleeved with 2 left and right synchronous belts (7), the other ends of the left and right synchronous belts (7) are sleeved on the left and right rotating belt wheels, a first reflective mirror (5) is arranged on the rear top sliding sleeve (27), an adjusting nut (33) is arranged behind the first reflective mirror (5),

the top of the machine frame (1) is provided with 1 laser head assembly (21), the laser head assembly (21) comprises 1 main body frame (21a), front and rear horizontal front and rear sliding rods (25) are sleeved in the main body frame (21a), two ends of the front and rear sliding rods (25) are fixed on a front top sliding sleeve (24) and a rear top sliding sleeve (27),

the main body frame (21a) is fixedly clamped with a front and a rear synchronous belts (8), the front end of the front and the rear synchronous belts (8) is sleeved on a front and a rear synchronous motors (24a), the rear end is fixed on a front and a rear rotating belt wheel (22),

the laser head assembly is characterized in that 1 downward laser head (21b) is arranged on the left side of the main body frame (21a), a second reflective mirror (6) facing the rear is arranged on the upper portion of the laser head (21b), and the lifting motor (30), the front and rear synchronous motors (24a), the left and right synchronous motors (26) and the laser head assembly (21) are electrically connected to the controller (31).

2. The porous ceramic 3D printer of claim 1, wherein: lifting platform (11) are square frame shape, lifting platform (11) top is equipped with rectangular work platform (19), adopt spring (32) absorbing flexible connection mode of cover on the bolt between work platform (19) and lifting platform (11), and can finely tune four positions of work platform (19) through the position of adjusting sleeve nut (34) on the bolt.

3. The porous ceramic 3D printer of claim 1, wherein: laser instrument (14) laser outlet and first reflector (5) and second reflector (6) are on same horizontal plane, first reflector (5) plane is vertical place and become 45 contained angles with the direction of the laser outlet that laser instrument (14) launched, second reflector (6) become 45 contained angles and contained angle orientation first reflector (5) with the horizontal plane, make laser head (21b) of motion and fixed laser instrument (14) become space vertical all the time.

4. The porous ceramic 3D printer of claim 1, wherein: the main body of the machine frame (1) is made of square steel section bars, and strength reinforcing sheets (1a) are arranged at the joints.

5. The porous ceramic 3D printer of claim 1, wherein: one half of the lower part of the pair of front sponge transmission rollers (10) is immersed in the adhesive agent box (12).

6. The porous ceramic 3D printer of claim 1, wherein: frame (1) front end middle part is equipped with feed reel frame (13) to frame (1) the place ahead, be equipped with feed spool (13a) on feed reel frame (13), frame (1) rear end middle part is equipped with a pair of rear portion sponge driving roller (28) of controlling the level to rolling about, frame (1) rear end middle part is equipped with clout reel frame (9) to frame (1) rear, be equipped with clout spool (9a) on clout reel frame (9), clout spool (9a) are connected and are equipped with clout motor (9b), clout motor (9b) electric connection is to controller (31).

7. The porous ceramic 3D printer of claim 1, wherein: the working platform (19) is made of an acrylic plate material.

8. The porous ceramic 3D printer of claim 1, wherein: the adhesive box (12) is filled with adhesive.

9. The porous ceramic 3D printer of claim 1, wherein: a protective cover can be arranged above the laser head assembly (21), the first reflective mirror (5) and the laser generator (14), a paper roller (35) is arranged at the front part of the sponge roller at the rear part, and a scraper blade (36) is arranged at the rear part of the sponge roller (10) at the front part.

10. The porous ceramic forming method of the porous ceramic 3D printer of claim 6, comprising the steps of:

a. firstly, laying a layer of porous screen mesh-shaped substrate on a working platform (19) to prevent a next laying coiled material with adhesive from being bonded with the working platform (19), lifting the working platform (19) to a preset station by a controller (31), placing roll paper on a paper roller (35), placing the roll paper on the paper roller (35) of a rear sponge roller,

b. placing a ceramic coiled material in a feeding reel (13a) of a feeding reel frame (13), wherein the ceramic coiled material passes through a front horizontal pair of rollers, and one half of the lower part of a pair of front sponge transmission rollers (10) is immersed in an adhesive box (12) and is adhered with an adhesive; a pair of front sponge driving rollers (10) for applying glue to the ceramic web while the rollers are in contact with each other, an adhesive agent being applied to the lower surface of the laid web so as to bond the laid web to the lower sheet,

c. the ceramic coiled material is continuously pulled and paved to advance, the ceramic coiled material and the roll paper of the paper roller (35) are placed below the ceramic coiled material, the ceramic coiled material and the roll paper are adhered together by an adhesive, the ceramic coiled material passes through a pair of left and right horizontal counter-rolling rear sponge transmission rollers (28) arranged in the middle of the rear end of the rack (1) and is wound on a surplus material reel (9a) arranged on a surplus material reel frame (9), the surplus material motor (9b) controls the operation according to the controller (31), after the ceramic coiled material and the roll paper are adhered, the adhesive can be prevented from being adhered on the rear sponge transmission rollers (28),

d. after the preparation work is finished, the substrate is placed in a set area, the controller (31) controls the working platform (19) to drive a layer of substrate paved on the working platform to move upwards to the position below the ceramic coiled material coated with the adhesive, the substrate and the ceramic coiled material are bonded, the outer frame of the substrate does not protrude out of the outer frame of the formed porous ceramic, the working platform (19) keeps a working distance with the laser (14), and then the operation is started;

a laser outlet of a laser (14) forms a laser beam vertical to the working platform (1) through a first reflector (5) and a second reflector (6), the ceramic coiled material is melted by the laser (14) according to a path designed by a computer, firstly, the ceramic coiled material is melted according to the inside of the porous ceramic to form a porous structure, and finally, the periphery of the porous ceramic is melted to separate the porous ceramic layer designed by the computer from the ceramic coiled material,

e. after a layer of ceramic coiled material is cut by laser, the controller (31) controls the excess material motor (9b) to move forward for more than one size of the porous ceramic in the advancing direction of the ceramic coiled material, the lifting platform descends for a unit sheet thickness distance, the excess material motor (9b) drives the ceramic coiled material to a preset station, the operation of the step d is repeated, the operation is repeated according to the path designed by the computer until the designed porous ceramic is formed by stacking,

f. after the porous ceramics are processed, placing roll paper on a feeding reel (13a), wherein the roll paper is adhered to the ceramic roll and passes through the front sponge transmission roller (10) for a long distance to prevent the adhesive from being adhered to the upper roller of the front sponge transmission roller (10); and the scraping plate (36) arranged at the rear part of the front sponge roller can be used for scraping the adhesive of the front sponge transmission roller (10).

Technical Field

The invention relates to the field of 3D printing, in particular to a 3D printer for manufacturing porous ceramic and a forming method.

Background

There are many methods for preparing porous ceramics, and conventional methods include gas foaming (physical foaming and chemical foaming), particle leaching, pore-forming, foam impregnation, phase separation, and the like. Although the methods can manufacture the porous ceramics with higher porosity and uniform distribution, the method is influenced by processing conditions, a mould is manufactured firstly in the process, the product period is long, the required product cannot be manufactured quickly, and the size, the shape and the through porosity of the porous ceramics manufactured by the traditional method cannot be ensured. Although the pore size inside the material can be adjusted by the size of the porogen particle, there are many limitations, such as the pores inside the material are not connected; residue of pore-forming particles in the material; the size of the material is limited, etc. The traditional processing method of the porous ceramics can not meet the current industrial requirements.

The porous ceramic has good physical properties, chemical properties and electrical properties, and has remarkable effects on heat preservation, heat insulation, filtration, catalysis and the like due to high porosity and large surface area, so that the porous ceramic is widely applied to a plurality of fields such as ordnance, aerospace, semiconductors, biological functional materials and the like.

The 3D printer, also known as a rapid prototyping machine in the professional field, is a technical achievement of digital material increase technology gradually moving to the civil market after decades of development. The popularization of the method not only means the improvement of science and technology, but also adds new connotation to the industrial manufacturing concept, and has wide development prospect. The 3D printer prints the three-dimensional model by using different materials, the 3D printer has a plurality of forming materials, and the forming raw materials are different according to the difference of the forming raw materials; ceramic is one of them.

Disclosure of Invention

The invention aims to provide a porous ceramic 3D printer and a porous ceramic forming method, which can conveniently and quickly prepare porous ceramic through a 3D printing technology, the formed porous ceramic material has a reliable shape, and the forming of parts with high difficulty and complexity can be realized.

In order to achieve the purpose, the invention provides the following technical scheme: the porous ceramic 3D printer comprises a frame, a lifting platform is arranged in a frame, 1 lead screw shaft sleeve and 2 slide bar shaft sleeves are respectively arranged on the left side and the right side of the lifting platform, a vertical lead screw is sleeved in the lead screw shaft sleeves, the upper end and the lower end of the lead screw are fixed on the frame, a vertical slide bar is sleeved in the slide bar shaft sleeves, the upper end and the lower end of the slide bar are fixed on the frame, a lifting motor is connected to the lower end of the lead screw, a pair of left and right horizontally-rolling front sponge transmission rollers is arranged in the middle of the front end of the frame, a bonding agent box is arranged below the front sponge transmission rollers, a laser generator and a controller are arranged on the left rear side of the top end of the frame, 2 left and right horizontally-horizontal transverse rods are arranged on the front end and the rear end of the top of the frame, a front, The rear top sliding sleeve is provided with a front and rear rotating belt wheel, the left end of a left transverse rod and a right transverse rod is provided with 2 left and right synchronous motors, the right end of the left transverse rod and the right transverse rod is provided with 2 left and right rotating belt wheels, the left and right synchronous motors are sleeved with 2 left and right synchronous belts, the other ends of the left and right synchronous belts are sleeved on the left and right rotating belt wheels, the middle parts of the left and right synchronous belts are clamped on the front top sliding sleeve and the rear top sliding sleeve, the rear top sliding sleeve is provided with a first reflector, the rear part of the first reflector is provided with an adjusting nut, the top of the frame is provided with 1 laser head assembly, the laser head assembly comprises 1 main frame, a front and rear horizontal sliding rod is sleeved in the main frame, the two ends of the front and rear sliding rod are fixed on the front top sliding sleeve and the rear, the main part frame left side is equipped with 1 laser head down, laser head upper portion is equipped with the second reflector towards the rear, elevator motor around synchronous machine, control synchronous machine, laser head subassembly electric connection to controller.

Further, the lifting platform is square, a rectangular working platform is arranged above the lifting platform, a spring shock-absorbing flexible connection mode sleeved on the bolt is adopted between the working platform and the lifting platform, and the four directions of the working platform can be finely adjusted by adjusting the position of a nut sleeved on the bolt.

Further, laser instrument laser outlet and first reflector and second reflector are on same horizontal plane, first reflector plane is vertical places and becomes 45 contained angles with the direction of the laser outlet that the laser instrument launched, the second reflector becomes 45 contained angles and contained angle orientation first reflector with the horizontal plane, makes the laser head of motion and fixed laser instrument become the space vertical all the time.

Furthermore, the frame main part adopts square steel section bar, and the junction is equipped with the intensity and strengthens the piece.

Further, one half of the lower part of the pair of front sponge transmission rollers is immersed in the adhesive box.

Furthermore, a feeding reel frame is arranged in the middle of the front end of the rack towards the front of the rack, a feeding reel is arranged on the feeding reel frame, a pair of left and right horizontally oppositely-rolling rear sponge transmission rollers is arranged in the middle of the rear end of the rack, a residual material reel frame is arranged in the middle of the rear end of the rack towards the rear of the rack, a residual material reel is arranged on the residual material reel frame, a residual material motor is connected with the residual material reel and is electrically connected to a controller,

further, the working platform is made of acrylic plates.

Furthermore, the adhesive box is filled with adhesive.

Furthermore, a protective cover is arranged above the laser head assembly, the first reflector and the laser generator, a paper roller is arranged at the front part of the rear sponge roller, and a scraper is arranged behind the front sponge roller.

The forming method of the porous ceramic comprises the following steps:

a. firstly, a layer of porous screen mesh-shaped substrate is paved on a working platform to prevent the next paving coiled material with adhesive from being bonded with the working platform, a controller enables the working platform to ascend to a preset station, the paper roller (35) is used for placing the paper roll, the paper roller of the sponge roller at the rear part is used for placing the paper roll,

b. placing a ceramic coiled material in a feeding reel of a feeding reel frame, wherein the ceramic coiled material passes through a front horizontal pair of rollers, and one half of the lower part of the front sponge transmission rollers is immersed in the adhesive box and is adhered with the adhesive; a pair of front sponge transmission rollers perform gluing operation on the ceramic coiled material while rolling, adhesive is coated on the lower surface of the laid coiled material so as to be bonded with the lower layer sheet,

c. the ceramic coiled material is wound on a surplus material reel arranged on a surplus material reel frame through a pair of left and right horizontal counter-rolling rear sponge transmission rollers arranged in the middle of the rear end of the frame, the surplus material motor is controlled to operate according to a controller, after the ceramic coiled material is adhered to the paper roll, the adhesive can be prevented from being adhered to the rear sponge transmission roller,

d. after the preparation work is finished, the substrate is placed in a set area, the controller controls the working platform (19) to drive a layer of substrate laid on the working platform to move upwards to the position below the ceramic coiled material coated with the adhesive, the substrate and the ceramic coiled material are bonded, the outer frame of the substrate does not protrude out of the outer frame of the formed porous ceramic, the working platform keeps a working distance with the laser, and then the operation is started;

the laser outlet of the laser forms a laser beam vertical to the working platform through the first reflector and the second reflector, the ceramic coiled material is melted by the laser according to the path designed by the computer, firstly, the ceramic coiled material is melted according to the interior of the porous ceramic to form a porous structure, and finally, the periphery of the porous ceramic is melted to separate the porous ceramic layer designed according to the computer from the ceramic coiled material,

e. after a layer of ceramic coiled material is cut by laser, the controller controls the excess material motor to move forward for more than one size of the porous ceramic in the advancing direction of the ceramic coiled material, the lifting platform descends for a unit sheet thickness distance, the excess material motor drives the ceramic coiled material to a preset station, the operation of the step d is repeated according to the path designed by the computer until the designed porous ceramic is formed by stacking,

f. after the porous ceramic is processed, placing the roll paper on a feeding reel, wherein the roll paper is adhered to the ceramic roll and penetrates through the front sponge transmission roller for a long distance, so that the adhesive is prevented from being adhered to the upper roller of the front sponge transmission roller; and the adhesive of the front sponge transmission roller can be scraped by a scraper arranged at the rear of the front sponge roller.

The invention has the following remarkable advantages:

1. the front and back directions are provided with a synchronous servo motor, a synchronous belt and the like, so that the accurate movement and positioning of the laser head in the front and back directions are ensured.

2. The left and right directions are provided with a synchronous servo motor, a synchronous belt and the like, so that the accurate movement and positioning of the sliding rod seat, namely the left and right directions of the laser head are ensured.

3. The first reflector box and the second reflector are fixed on the middle moving cross bar, and the laser emitted by the horizontal laser is refracted into the laser head by adopting a 45-degree refraction mode twice, so that the moving laser head and the fixed laser are vertical in space all the time.

4. The lifting mechanism adopts a reliable screw nut transmission structure, two symmetrical slide bars are used for keeping left-right balance, and a servo motor is adopted to realize accurate lifting position.

5. When the front sponge transmission rollers roll, one roller which sinks into the adhesive box filled with the adhesive is turned over, the surface layer of the roller absorbs the adhesive, and the adhesive is coated on the lower surface of the coil under laying under the extrusion action of the roller on the upper side and the middle coil, so that the newly laid ceramic coil can be bonded with the lower layer of sheet under the action of the adhesive.

6. The excess material recycling structure adopts a synchronous servo motor to be connected with the excess material recycling rod, so that the accuracy and continuity of feeding are ensured.

7. By utilizing the method and the device, the formed porous ceramic material has reliable shape, and the forming of parts with high difficulty and complexity can be realized.

Drawings

FIG. 1: the appearance structure of the invention;

FIG. 2: the invention discloses an enlarged structure diagram at the position of an appearance structure diagram A;

FIG. 3: the invention discloses an enlarged structure diagram at the position B of an appearance structure diagram;

FIG. 4: the cross-sectional view structure of the invention;

FIG. 5: the cross-sectional view of the present invention is an enlarged structural view at C.

In the figure: 1. a frame; 1a, a strength reinforcing sheet; 5. a first reflective mirror; 6. a second reflective mirror; 7. a left synchronous belt and a right synchronous belt; 8. a front synchronous belt and a rear synchronous belt; 9. a residual material reel stand; 9a, a residual material reel; 9b, a residual material motor; 10. a front sponge drive roller; 11. a lifting platform; 12. an adhesive agent box; 12. in the adhesive box; 13. a supply reel stand; 13a, a supply reel; 14. a laser generator; 16. a screw rod; 17. a lead screw shaft sleeve; 18. a slide bar; 19. a working platform; 20. a slide bar shaft sleeve; 21. a laser head assembly; 21a, a main body frame; 21b, a laser head; 22. a front and rear rotating pulley; 23. a left and right cross bar; 24. a front top sliding sleeve; 24a, a front and rear synchronous motor; 25. A front and a rear slide bar; 26. a left and right synchronous motor; 27. pushing the sliding sleeve backwards; 28. a rear sponge drive roller; 29 left and right rotary pulleys; 30. a lifting motor; 31. a controller; 32. a spring; 33. adjusting the nut; 34 a nut; 35. a paper roll; 36. a scraper.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Referring to fig. 1, 2, 3, 4 and 5, the porous ceramic 3D printer includes a frame 1, and is characterized in that a lifting platform 11 is disposed in a frame of the frame 1, 1 lead screw shaft sleeve 17 and 2 slide screw shaft sleeves 20 are disposed on each of left and right sides of the lifting platform 11, a vertical lead screw 16 is sleeved in the lead screw shaft sleeve 17, upper and lower ends of the lead screw 16 are fixed to the frame 1, a vertical slide bar 18 is sleeved in the slide screw shaft sleeve 20, upper and lower ends of the slide bar 18 are fixed to the frame 1, a lifting motor 30 is connected to a lower end of the lead screw 16, a pair of left and right horizontally rolling front sponge transmission rollers 10 is disposed in a middle of a front end of the frame 1, an adhesive box 12 is disposed below the front sponge transmission roller 10, a laser generator 14 and a controller 31 are disposed on a left and right rear side of a top of the frame 1, 2 left and right horizontal cross bars 23 are disposed on a front and rear end of, the left and right cross bars 23 are sleeved with a front top sliding sleeve 24 and a rear top sliding sleeve 27, the rear side of the front top sliding sleeve 24 is provided with a front and rear synchronous motor 24a, the rear top sliding sleeve 27 is provided with a front and rear rotating belt wheel 22, the left end of the left and right cross bars 23 is provided with 2 left and right synchronous motors 26, the right end of the left and right cross bars 23 is provided with 2 left and right rotating belt wheels 29, the left and right synchronous motors 26 are sleeved with 2 left and right synchronous belts 7, the other ends of the left and right synchronous belts 7 are sleeved on the left and right rotating belt wheels 29 and are clamped on the front top sliding sleeve 24 and the rear top sliding sleeve 27 in the middle, the rear top sliding sleeve 27 is provided with a first reflective mirror 5, the rear of the first reflective mirror 5 is provided with an adjusting nut 33, the top of the frame 1 is provided with 1 laser head assembly 21, the, front and back slide bar 25 both ends are fixed on preceding top sliding sleeve 24, back top sliding sleeve 27, main body frame 21a fixes the centre gripping and has front and back hold-in range 8, front and back hold-in range 8 front end suit is on front and back synchronous machine 24a, and the rear end is fixed on front and back rotatory band pulley 22, main body frame 21a left side is equipped with 1 laser head 21b down, laser head 21b upper portion is equipped with towards the second reflector 6 in rear, elevator motor 30 front and back synchronous machine 24a, control synchronous machine 26, laser head subassembly 21 electric connection to controller 31.

Further, lift platform 11 is square frame shape, lift platform 11 top is equipped with rectangular work platform 19, adopt the absorbing flexible connection mode of spring 32 of cover on the bolt between work platform 19 and the lift platform 11, and can finely tune four positions of work platform 19 through adjusting the position of the nut 34 of cover on the bolt.

Further, the laser outlet of the laser 14 is on the same horizontal plane with the first reflective mirror 5 and the second reflective mirror 6, the plane of the first reflective mirror 5 is vertically placed and forms an included angle of 45 degrees with the direction of the laser outlet emitted by the laser 14, the second reflective mirror 6 forms an included angle of 45 degrees with the horizontal plane and the included angle faces the first reflective mirror 5, so that the moving laser head 21b and the fixed laser 14 are always in a space vertical mode.

Furthermore, the main body of the frame 1 is made of square steel section bars, and a strength reinforcing sheet 1a is arranged at the joint.

Further, one half of the lower part of the pair of front sponge transmission rollers 10 is immersed in the adhesive box 12, and the adhesive is filled in the adhesive box 12; the front sponge driving rollers 10 are opposite to each other, and one roller which sinks into the lower part of the adhesive agent box 12 containing the adhesive agent is turned over, so that the surface layer of the roller absorbs the adhesive agent, and the adhesive agent is coated on the lower surface of the coil material which is being laid under the extrusion action of the roller on the upper side and the middle coil material, and the newly laid ceramic coil material can be adhered to the lower layer sheet material under the action of the adhesive agent.

Furthermore, a feeding reel frame 13 is arranged in the middle of the front end of the rack 1 towards the front of the rack 1, a feeding reel 13a is arranged on the feeding reel frame 13, a pair of left and right horizontally oppositely-rolling rear sponge transmission rollers 28 is arranged in the middle of the rear end of the rack 1, a surplus material reel frame 9 is arranged in the middle of the rear end of the rack 1 towards the rear of the rack 1, a surplus material reel 9a is arranged on the surplus material reel frame 9, a surplus material motor 9b is connected with the surplus material reel 9a, and the surplus material motor 9b is electrically connected to the controller 31; after laser cutting, the lifting platform descends by a unit sheet thickness distance, and the excess material reel is driven by the motor to rotate to recover the excess material after cutting and lay a new sheet on the lifting platform.

Further, the working platform 19 is made of acrylic plate; the weight is light.

Further, a protective cover is arranged above the laser head assembly 21, the first reflecting mirror 5 and the laser generator 14; the occurrence of accidents is avoided; the front part of the rear sponge roller is provided with a paper roller 35 which can send out paper rolls to the lower bottom surface of the ceramic coiled material to protect the rear sponge roller 28, and the rear part of the front sponge roller is provided with a scraper 36 which can scrape off redundant adhesives.

Based on the printer with the innovative design, the forming method of the porous ceramic comprises the following steps:

a. firstly, a layer of porous screen mesh-shaped substrate is paved on a working platform 19 to prevent a next paving coiled material with adhesive from being adhered to the working platform 19, a controller 31 enables the working platform 19 to ascend to a preset station, a paper roll is placed on a paper roller 35, the paper roll is placed on the paper roller 35 of a rear sponge roller,

b. placing a ceramic coil in a feeding reel 13a of a feeding reel frame 13, the ceramic coil passing through a front horizontal pair of rollers, and one half of the lower part of the front sponge driving rollers 10 being immersed in the adhesive agent box 12 and adhered with an adhesive agent; a pair of front sponge driving rollers 10, which perform a gluing operation to the ceramic web while facing each other, apply an adhesive to the lower surface of the laid web to bond with the lower sheet,

c. the ceramic coiled material is continuously pulled and paved to advance, the coiled material and the paper roll of the paper roller 35 are placed below the ceramic coiled material, the ceramic coiled material and the paper roll are adhered together by an adhesive, the ceramic coiled material passes through a pair of left and right horizontally oppositely-rolled rear sponge transmission rollers 28 arranged in the middle of the rear end of the rack 1 and is wound on a surplus material reel 9a arranged on the surplus material reel frame 9, the surplus material motor 9b controls the operation according to the controller 31, after the ceramic coiled material and the paper roll are adhered, the adhesive can be prevented from being adhered on the rear sponge transmission rollers 28,

d. after the preparation is completed, the substrate is placed in a set area, the controller 31 controls the working platform 19 to drive a layer of substrate laid on the working platform to move upwards to the position below the ceramic coiled material coated with the adhesive, the substrate and the ceramic coiled material are bonded, so that the outer frame of the substrate does not protrude out of the outer frame of the formed porous ceramic, the working platform 19 keeps a working distance with the laser 14, and then the operation is started;

the laser outlet of the laser 14 forms a laser beam vertical to the working platform 1 through the first reflector 5 and the second reflector 6, the ceramic coiled material is melted by the laser 14 according to the path designed by the computer, firstly, the ceramic coiled material is melted according to the interior of the porous ceramic to form a porous structure, finally, the periphery of the porous ceramic is melted, so that the porous ceramic layer designed according to the computer is separated from the ceramic coiled material,

e. after a layer of ceramic coiled material is cut by laser, the controller 31 controls the excess material motor 9b to move forward for more than one size of the porous ceramic in the advancing direction of the ceramic coiled material, the lifting platform descends for a unit sheet thickness distance, the excess material motor 9b drives the ceramic coiled material to a preset station, the operation of the step d is repeated according to a path designed by the computer until the designed porous ceramic is formed by stacking,

f. after the porous ceramic is processed, placing roll paper on the feeding reel 13a, wherein the roll paper is adhered to the ceramic roll and passes through the front sponge transmission roller 10 for a long distance to prevent the adhesive from being adhered to the upper roller of the front sponge transmission roller 10; and the scraping plate 36 arranged at the rear of the front sponge roller can be used for scraping the adhesive of the front sponge transmission roller 10.

It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.