阅读说明：本技术 一种具有z向模块化延展结构的fdm型3d打印系统 (FDM type 3D printing system with Z is to modularization extension structure ) 是由 张毅 王永杰 王小博 吴聪 毋源 郑泽华 于 2020-10-30 设计创作，主要内容包括：一种具有Z向模块化延展结构的FDM型3D打印系统,包括基座,在基座上端面的中间位置连接有打印平台,在基座上端面的左右两侧各连接有两个三级Z向位移装置,两个三级Z向位移装置上连接有两个二级Z向位移装置,两个二级Z向位移装置上连接有一个一级Z向位移装置,左右两侧的两个一级Z向位移装置之间连接有XY向位移装置,XY向位移装置上连接有喷头,喷头下方的打印平台上放置有打印件；在基座上端面的前侧连接有控制装置,在基座的后侧连接有给喷头送料的送料装置；本发明采用模块化方法设计多级的Z向位移装置,能够有效地增大FDM型3D打印机的工作行程,提升其打印能力,同时减小了设备所占用的空间,并降低了生产成本。(An FDM type 3D printing system with a Z-direction modular extension structure comprises a base, wherein a printing platform is connected to the middle position of the upper end face of the base, the left side and the right side of the upper end face of the base are respectively connected with two three-level Z-direction displacement devices, the two three-level Z-direction displacement devices are connected with two second-level Z-direction displacement devices, the two second-level Z-direction displacement devices are connected with one first-level Z-direction displacement device, an XY-direction displacement device is connected between the two first-level Z-direction displacement devices on the left side and the right side, a spray head is connected to the XY-direction displacement device, and a printing piece is; the front side of the upper end surface of the base is connected with a control device, and the rear side of the base is connected with a feeding device for feeding the spray head; the invention designs the multi-stage Z-direction displacement device by adopting a modularization method, can effectively increase the working stroke of the FDM type 3D printer, improves the printing capability of the FDM type 3D printer, simultaneously reduces the space occupied by equipment and reduces the production cost.)

1. An FDM type 3D printing system with Z-direction modular extension structure, comprising a base (01), characterized in that: the printing device comprises a base (01), a printing platform (02) is connected to the middle position of the upper end face of the base (01), two three-level Z-direction displacement devices (08) are respectively connected to the left side and the right side of the upper end face of the base (01), two-level Z-direction displacement devices (07) are connected to the two three-level Z-direction displacement devices (08), a one-level Z-direction displacement device (06) is connected to the two-level Z-direction displacement devices (07), an XY-direction displacement device (03) is connected between the two one-level Z-direction displacement devices (06) on the left side and the right side, a spray head (04) is connected to the XY-direction displacement device (03), and a printing piece; the front side of the upper end surface of the base (01) is connected with a control device (09), and the rear side of the base (01) is connected with a feeding device (05) for feeding the spray head (04).

2. An FDM type 3D printing system with Z-direction modular extension architecture in accordance with claim 1 wherein: the XY direction displacement device (03) comprises a substrate (0301), a first support (0302) is connected to the upper left corner of the substrate (0301), a second support (0306) is connected to the upper right corner of the substrate (0301), a revolving shaft (0305) is supported by the first support (0302) and the second support (0306), a first synchronous pulley (0303) is installed at the left end of the revolving shaft (0305), a second synchronous pulley (0307) is installed at the right end of the revolving shaft (0305), and the left end of the revolving shaft (0305) is connected with an output shaft of a fourth stepping motor (0304);

a third support (0312) is connected to the lower left corner of the substrate (0301), a third synchronous pulley (0313) is connected to the third support (0312), and a first synchronous belt (0308) is connected to the first synchronous pulley (0303) and the third synchronous pulley (0313); the first support seat (0302) and the third support seat (0312) are connected with a first guide pillar (0310), and a first sliding block (0316) on the first guide pillar (0310) is connected with a first synchronous belt (0308);

a fourth support (0314) is connected to the lower right corner of the substrate (0301), a fourth synchronous pulley (0315) is connected to the fourth support (0314), and a second synchronous belt (0309) is connected to the second synchronous pulley (0307) and the fourth synchronous pulley (0315); the second support seat (0306) and the fourth support seat (0314) are connected with a second guide pillar (0311), and a second sliding block (0317) on the second guide pillar (0311) is connected with a second synchronous belt (0309);

a linear motor (0318) is connected between the first sliding block (0316) and the second sliding block (0317), and a nozzle (04) is connected on a rotor seat of the linear motor (0318).

3. An FDM type 3D printing system with Z-direction modular extension architecture in accordance with claim 2 wherein: the feeding device (05) comprises a support (0501), the support (0501) is connected to the side face of the base (01), a material tray (0502) is connected to the support (0501), a material wire (0504) is wound on the material tray (0502), the other end of the material wire (0504) penetrates through a sleeve rod (0503) to be connected with the spray head (04), and the sleeve rod (0503) is connected to the base plate (0301).

4. An FDM type 3D printing system with Z-direction modular extension architecture in accordance with claim 1 wherein: the first-stage Z-direction displacement device (06) comprises a first frame body (0601), a first stepping motor (0602) is installed at the top of the first frame body (0601), a main shaft of the first stepping motor (0602) penetrates through the first frame body (0601) to be connected with a first lead screw (0603), the first lead screw (0603) is installed in the first frame body (0601), 2 first optical axes (0604) are installed in the first frame body (0601), the first lead screw (0603) and the 2 first optical axes (0604) are connected with a first lifting plate (0605), the lower surface of the first lifting plate (0605) is connected with a first displacement sensor (0606), and two sides of the lower end of the first frame body (0601) are connected with second lifting plates (0607);

the second-stage Z-direction displacement device (07) comprises a second frame body (0701), a second stepping motor (0702) is installed at the top of the second frame body (0701), a spindle of the second stepping motor (0702) penetrates through the second frame body (0701) to be connected with a second lead screw (0703), the second lead screw (0703) is installed in the second frame body (0701), 2 second optical axes (0704) are installed in the second frame body (0701), the second lead screw (0703), the 2 second optical axes (0704) and a second lifting plate (0607) are connected, the lower surface of the second lifting plate (0607) is connected with a second displacement sensor (0705), and the outer side of the lower end of the 2 second frame bodies (0701) is connected with a third lifting plate (0706);

three-level Z is to displacement device (08) including third support body (0801), third support body (0801) bottom is passed through backing plate (0806) and is connected on base (01), third support body (0801) top is connected with third step motor (0802), the main shaft of third step motor (0802) passes third support body (0801) and is connected with third lead screw (0803), install on third support body (0801) third lead screw (0803), install 2 third optical axis (0804) on the third support body (0801), third lead screw (0803), 2 third optical axis (0804) and third lifter plate (0706) are connected, the lower surface of third lifter plate (0706) is connected with third displacement sensor (0805).

5. An FDM type 3D printing system with Z-direction modular extension architecture in accordance with claim 4 or 2 wherein: the control device (09) is respectively electrically connected with the fourth stepping motor (0304), the linear motor (0318), the spray head (04), the first stepping motor (0602), the first displacement sensor (0606), the second stepping motor (0702), the second displacement sensor (0705), the third stepping motor (0802) and the third displacement sensor (0805).

Technical Field

The invention belongs to the technical field of 3D printing, and particularly relates to an FDM type 3D printing system with a Z-direction modular extension structure.

Background

The FDM type 3D printer takes ABS, PLA or nylon as materials, utilizes a displacement device to control a spray head to move along a planned path, and constructs a solid model by stacking and forming the materials in a molten state layer by layer through a nozzle on a printing platform. Due to the influence of the structure of the displacement device, the physical model manufactured by most of the existing FDM type 3D printers has certain limitation on the external dimension. In order to improve the printing capacity, the FDM type 3D printer has to increase the working stroke of the displacement device in design, so that the space occupied by the equipment is enlarged; for a user of the 3D printer, a large 3D printer meeting the printing size requirement of the solid model must be added, and the production cost is increased.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the FDM type 3D printing system with the Z-direction modular extension structure, and the multi-level Z-direction displacement device is designed by adopting a modular method, so that the working stroke of the FDM type 3D printer can be effectively increased, the printing capacity of the FDM type 3D printer can be improved, meanwhile, the space occupied by equipment can be reduced, and the production cost can be reduced.

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

an FDM type 3D printing system with a Z-direction modular extension structure comprises a base 01, wherein a printing platform 02 is connected to the middle position of the upper end face of the base 01, the left side and the right side of the upper end face of the base 01 are respectively connected with two three-level Z-direction displacement devices 08, the two three-level Z-direction displacement devices 08 are connected with two second-level Z-direction displacement devices 07, the two second-level Z-direction displacement devices 07 are connected with one first-level Z-direction displacement device 06, an XY-direction displacement device 03 is connected between the two first-level Z-direction displacement devices 06 on the left side and the right side, a spray head 04 is connected onto the XY-direction displacement device 03, and a printing part 10 is placed; the front side of the upper end surface of the base 01 is connected with a control device 09, and the rear side of the base 01 is connected with a feeding device 05 for feeding the spray heads 04.

The XY direction displacement device 03 comprises a substrate 0301, a first support 0302 is connected to the upper left corner of the substrate 0301, a second support 0306 is connected to the upper right corner of the substrate 0301, a revolving shaft 0305 is supported by the first support 0302 and the second support 0306, a first synchronous pulley 0303 is installed at the left end of the revolving shaft 0305, a second synchronous pulley 0307 is installed at the right end of the revolving shaft 0305, and the left end of the revolving shaft 0305 is connected with an output shaft of a fourth stepping motor 0304;

a third support 0312 is connected to the lower left corner of the substrate 0301, a third synchronous pulley 0313 is connected to the third support 0312, and a first synchronous belt 0308 is connected to the first synchronous pulley 0303 and the third synchronous pulley 0313; the first support 0302 and the third support 0312 are connected with a first guide pillar 0310, and a first slider 0316 on the first guide pillar 0310 is connected with a first timing belt 0308;

a fourth support 0314 is connected to the lower right corner of the substrate 0301, a fourth synchronous pulley 0315 is connected to the fourth support 0314, and a second synchronous belt 0309 is connected to the second synchronous pulley 0307 and the fourth synchronous pulley 0315; the second support 0306 and the fourth support 0314 are connected with a second guide pillar 0311, and a second slider 0317 on the second guide pillar 0311 is connected with a second synchronous belt 0309;

a linear motor 0318 is connected between the first sliding block 0316 and the second sliding block 0317, and a nozzle 04 is connected to the rotor base of the linear motor 0318.

The feeding device 05 comprises a support 0501, the support 0501 is connected to the side face of the base 01, a material tray 0502 is connected to the support 0501, a material wire 0504 is wound on the material tray 0502, the other end of the material wire 0504 penetrates through a sleeve rod 0503 to be connected with the spray head 04, and the sleeve rod 0503 is connected to the base plate 0301.

The first-stage Z-direction displacement device 06 comprises a first frame body 0601, a first stepping motor 0602 is mounted at the top of the first frame body 0601, a main shaft of the first stepping motor 0602 penetrates through the first frame body 0601 to be connected with a first lead screw 0603, the first lead screw 0603 is mounted in the first frame body 0601, 2 first optical axes 0604 are mounted in the first frame body 0601, the first lead screw 0603 and the 2 first optical axes 0604 are connected with a first lifting plate 0605, the lower surface of the first lifting plate 0605 is connected with a first displacement sensor 0606, and two sides of the lower end of the first frame body 0601 are connected with second lifting plates 0607;

the second-stage Z-direction displacement device 07 comprises a second frame body 0701, a second stepping motor 0702 is mounted at the top of the second frame body 0701, a spindle of the second stepping motor 0702 penetrates through the second frame body 0701 to be connected with a second lead screw 0703, the second lead screw 0703 is mounted in the second frame body 0701, 2 second optical axes 0704 are mounted in the second frame body 0701, the second lead screw 0703, the 2 second optical axes 0704 are connected with a second lifting plate 0607, the lower surface of the second lifting plate 0607 is connected with a second displacement sensor 0705, and the outer sides of the lower ends of the 2 second frame bodies 0701 are connected with a third lifting plate 0706;

three-level Z-direction displacement device 08 comprises a third frame body 0801, the bottom of the third frame body 0801 is connected to the base 01 through a base plate 0806, the top of the third frame body 0801 is connected with a third stepping motor 0802, a main shaft of the third stepping motor 0802 penetrates through the third frame body 0801 to be connected with a third lead screw 0803, the third lead screw 0803 is installed on the third frame body 0801, 2 third optical axes 0804 are installed on the third frame body 0801, the third lead screw 0803, the 2 third optical axes 0804 and a third lifting plate 0706 are connected, and the lower surface of the third lifting plate 0706 is connected with a third displacement sensor 0805.

The control device 09 is electrically connected to the fourth stepping motor 0304, the linear motor 0318, the nozzle 04, the first stepping motor 0602, the first displacement sensor 0606, the second stepping motor 0702, the second displacement sensor 0705, the third stepping motor 0802 and the third displacement sensor 0805, respectively.

The invention has the beneficial effects that:

the Z-direction displacement device of the FDM type 3D printer is designed in a modularized mode, and the Z-direction displacement of the XY-direction displacement device is achieved through the first-stage Z-direction displacement device, the second-stage Z-direction displacement device and the third-stage Z-direction displacement device. When the 3D printer did not begin working, first lifter plate, second lifter plate and third lifter plate were located the bottom of first support body, second support body and third support body respectively, had reduced the shared space of 3D printer effectively. When the 3D printer starts to work, the first lifting plate, the second lifting plate and the third lifting plate are sequentially lifted along the Z direction under the action of the control device, and the XY direction displacement device is driven to realize Z direction displacement. According to the invention, the number of stages of the Z-direction displacement device can be flexibly increased or decreased according to the Z-direction design printing parameters of the printer or the Z-direction printing size of a printed piece, the Z-direction modular extension function is realized, the applicability of the 3D printer is effectively improved, and the production cost is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the XY-direction displacement device.

Fig. 3 is a schematic structural diagram of the feeding device.

FIG. 4 is a cross-sectional view of a primary Z displacement device, a secondary Z displacement device, and a tertiary Z displacement device.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples, which are provided for illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1, an FDM type 3D printing system with a Z-direction modular extension structure includes a base 01, a printing platform 02 is connected to a middle position of an upper end surface of the base 01, two three-level Z-direction displacement devices 08 are respectively connected to left and right sides of the upper end surface of the base 01, two-level Z-direction displacement devices 07 are connected to the two three-level Z-direction displacement devices 08, one-level Z-direction displacement device 06 is connected to the two-level Z-direction displacement devices 07, an XY-direction displacement device 03 is connected between the two one-level Z-direction displacement devices 06 on the left and right sides, a nozzle 04 is connected to the XY-direction displacement device 03, and a printing part 10 is placed on the printing platform 02; the front side of the upper end surface of the base 01 is connected with a control device 09, and the rear side of the base 01 is connected with a feeding device 05 for feeding the spray heads 04.

As shown in fig. 2, the XY direction displacement device 03 includes a substrate 0301, a first support 0302 is connected to the upper left corner of the substrate 0301, a second support 0306 is connected to the upper right corner of the substrate 0301, a revolving shaft 0305 is supported by the first support 0302 and the second support 0306, a first synchronous pulley 0303 is installed at the left end of the revolving shaft 0305, a second synchronous pulley 0307 is installed at the right end of the revolving shaft 0305, and the left end of the revolving shaft 0305 is connected to the output shaft of the fourth stepping motor 0304;

a third support 0312 is connected to the lower left corner of the substrate 0301, a third synchronous pulley 0313 is connected to the third support 0312, and a first synchronous belt 0308 is connected to the first synchronous pulley 0303 and the third synchronous pulley 0313; the first support 0302 and the third support 0312 are connected with a first guide pillar 0310, and a first slider 0316 on the first guide pillar 0310 is connected with a first timing belt 0308;

a fourth support 0314 is connected to the lower right corner of the substrate 0301, a fourth synchronous pulley 0315 is connected to the fourth support 0314, and a second synchronous belt 0309 is connected to the second synchronous pulley 0307 and the fourth synchronous pulley 0315; the second support 0306 and the fourth support 0314 are connected with a second guide pillar 0311, and a second slider 0317 on the second guide pillar 0311 is connected with a second synchronous belt 0309;

a linear motor 0318 is connected between the first sliding block 0316 and the second sliding block 0317, and a nozzle 04 is connected to the rotor base of the linear motor 0318.

As shown in fig. 3, the feeding device 05 includes a bracket 0501, the bracket 0501 is connected to a side surface of the base 01, a tray 0502 is connected to the bracket 0501, a thread 0504 is wound around the tray 0502, the other end of the thread 0504 passes through a sleeve 0503 and is connected to the nozzle 04, and the sleeve 0503 is connected to the base 0301.

As shown in fig. 4, the first-stage Z-directional displacement device 06 includes a first frame body 0601, a first stepping motor 0602 is installed on the top of the first frame body 0601, a main shaft of the first stepping motor 0602 passes through the first frame body 0601 to be connected with a first lead screw 0603, the first lead screw 0603 is installed in the first frame body 0601, 2 first optical axes 0604 are installed in the first frame body 0601, the first lead screw 0603 and the 2 first optical axes 0604 are connected with a first lifting plate 0605, the lower surface of the first lifting plate 0605 is connected with a first displacement sensor 0606, and two sides of the lower end of the first frame body 0601 are connected with a second lifting plate 0607;

the second-stage Z-direction displacement device 07 comprises a second frame body 0701, a second stepping motor 0702 is mounted at the top of the second frame body 0701, a spindle of the second stepping motor 0702 penetrates through the second frame body 0701 to be connected with a second lead screw 0703, the second lead screw 0703 is mounted in the second frame body 0701, 2 second optical axes 0704 are mounted in the second frame body 0701, the second lead screw 0703, the 2 second optical axes 0704 are connected with a second lifting plate 0607, the lower surface of the second lifting plate 0607 is connected with a second displacement sensor 0705, and the outer sides of the lower ends of the 2 second frame bodies 0701 are connected with a third lifting plate 0706;

three-level Z-direction displacement device 08 comprises a third frame body 0801, the bottom of the third frame body 0801 is connected to the base 01 through a base plate 0806, the top of the third frame body 0801 is connected with a third stepping motor 0802, a main shaft of the third stepping motor 0802 penetrates through the third frame body 0801 to be connected with a third lead screw 0803, the third lead screw 0803 is installed on the third frame body 0801, 2 third optical axes 0804 are installed on the third frame body 0801, the third lead screw 0803, the 2 third optical axes 0804 and a third lifting plate 0706 are connected, and the lower surface of the third lifting plate 0706 is connected with a third displacement sensor 0805.

The control device 09 is electrically connected to the fourth stepping motor 0304, the linear motor 0318, the nozzle 04, the first stepping motor 0602, the first displacement sensor 0606, the second stepping motor 0702, the second displacement sensor 0705, the third stepping motor 0802 and the third displacement sensor 0805, respectively.

The working principle of the invention is as follows: respectively setting a first-stage Z-direction working stroke of the first-stage Z-direction displacement device 06, a second-stage Z-direction working stroke of the second-stage Z-direction displacement device 07 and a third-stage Z-direction working stroke of the third-stage Z-direction displacement device 08 on the control device 09, so that the printing range of the 3D printer in the Z direction is the sum of the first-stage Z-direction working stroke, the second-stage Z-direction working stroke and the third-stage Z-direction working stroke; in the process of manufacturing the print 10, the first displacement sensor 0606, the second displacement sensor 0705 and the third displacement sensor 0805 are used for detecting the Z-directional displacement of the first-stage Z-directional displacement device 06, the second-stage Z-directional displacement device 07 and the third-stage Z-directional displacement device 08; the control device 09 is used for starting the first stepping motor 0602 to drive the first screw rod 0603 to rotate, so that the first lifting plate 0605 is driven to lift along the Z direction, and the Z direction displacement of the XY direction displacement device 03 is realized; when the first displacement sensor 0606 detects that the Z-direction displacement of the first lifting plate 0605 reaches a first-stage Z-direction working stroke, the control device 09 is triggered to start the second stepping motor 0702, the second lead screw 0703 is driven to rotate, the second lifting plate 0607 is driven to lift along the Z direction, and the Z-direction displacement of the XY-direction displacement device 03 is continuously realized; when the second displacement sensor 0705 detects that the Z-direction displacement of the second lifting plate 0607 reaches the second-stage Z-direction working stroke, the control device 09 is triggered to start the third stepping motor 0802, the third lead screw 0803 is driven to rotate, the third lifting plate 0706 is driven to lift along the Z direction, and the Z-direction displacement of the XY-direction displacement device 03 is continuously realized; when the first displacement sensor 0606 detects that the Z-displacement of the XY-displacement device 03 reaches the dimension height of the printed matter 10 in the Z direction, the trigger control device 09 stops the operation of the first stepping motor 0602; when the second displacement sensor 0705 detects that the Z-direction displacement of the XY-direction displacement device 03 reaches the size height of the printing piece 10 in the Z direction, the control device 09 is triggered to stop the second stepping motor 0702; when the third displacement sensor 0805 detects that the Z-direction displacement of the XY-direction displacement device 03 reaches the size height of the printed matter 10 in the Z direction, the control device 09 is triggered to stop the operation of the third stepping motor 0802; the first synchronous belt 0308 and the second synchronous belt 0309 are driven by the stepping motor 0304 to drive the linear motor 0318 to slide on the first guide pillar 0310 and the second guide pillar 0311, so as to realize the displacement of the nozzle 04 connected to the linear motor 0318 in the X direction; the linear motor 0318 drives the rotor base of the linear motor assembly to move, and drives the nozzle 04 connected to the rotor base to realize displacement in the X direction.