CN214774026U

CN214774026U - Printing platform lifting mechanism for 3D printer forming cylinder

Info

Publication number: CN214774026U
Application number: CN202121198960.5U
Authority: CN
Inventors: 张平源; 巫国宝
Original assignee: Westin Xiamen Intelligent Design Co ltd
Current assignee: Wu Guobao
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-19
Anticipated expiration: 2031-05-31

Abstract

The utility model belongs to the 3D printer field, in particular to a print platform elevating system for 3D printer shaping jar, including cylinder body, mount and elevating gear, the inside lift platform that is provided with of cylinder body, the mount includes the bottom plate and sets up the fixed plate of bottom plate both sides, the fixed plate with the cylinder body bottom is connected, elevating gear sets up the cylinder body below, elevating gear includes that lead screw, motor, piston and setting are in a plurality of optical axes on the piston, the optical axis with lift platform connects, the rotatory piston lift that drives of motor drive lead screw. The utility model discloses can provide a motion stability height, the bigger print platform elevating system of load.

Description

Printing platform lifting mechanism for 3D printer forming cylinder

Technical Field

The utility model belongs to the 3D printer field, in particular to a print platform elevating system for 3D printer shaping jar.

Background

3D printing, which is one of the rapid prototyping technologies, is also called additive manufacturing, which is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like, and by printing layer by layer, based on a digital model file. There are many accessories on the 3D printer, wherein have the elevating system who is used for 3D to print the inside in storehouse, the print platform elevating system who exists on the existing market generally adopts electronic pole, pneumatic stem or hydraulic stem as elevating element, but along with the development of science and technology, people are more and more high to the inside elevating system's of 3D print the storehouse requirement, and the inside elevating system of traditional 3D print the storehouse can't satisfy people's user demand.

The prior art generally has the following defects in use: firstly, the supporting force of the platform during moving up and down is unstable, so that the conditions of inclination, vibration and the like can occur during the moving process of the platform, and the printing precision is influenced; the load capacity of two or one group of lifting elements is poor, the operation efficiency of the machine is not ideal, and meanwhile, the installation of the plurality of groups of lifting elements wastes space and improves the use cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a print platform elevating system for 3D printer shaping jar to solve the unstable problem of operation that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a printing platform lifting mechanism for a 3D printer forming cylinder comprises,

a cylinder body, wherein a lifting platform is arranged in the cylinder body,

a fixed frame, which comprises a bottom plate and fixed plates arranged at the two sides of the bottom plate, wherein the fixed plates are connected with the bottom of the cylinder body,

the lifting device is arranged below the cylinder body and comprises a screw rod, a motor, a piston and a plurality of optical axes arranged on the piston, the optical axes are connected with the lifting platform, and the motor drives the screw rod to rotate to drive the piston to lift.

Further improved, the inner side wall of the fixing plate is vertically provided with a linear guide rail, and two sides of the piston are connected with the linear guide rail.

In a further improvement, sliding blocks matched with the linear guide rails are arranged on two sides of the piston, and the sliding blocks move on the linear guide rails.

In a further improvement, the screw rod is fixedly connected with the bottom plate and the bottom of the cylinder body through a bearing.

In a further improvement, a screw rod nut is arranged on the screw rod and is fixedly connected with the piston.

In a further improvement, the fixing frame is internally provided with an induction device, and one side of the piston is provided with an induction sheet corresponding to the induction device.

In a further improvement, the optical axes are uniformly distributed at four corners of the top of the piston.

In a further improvement, the optical axis passes through the bottom plate of the cylinder body and is connected with the lifting platform, and the optical axis is fixed with the cylinder body through a bearing.

In a further improvement, a drag chain is arranged in the fixed frame.

Compared with the prior art, the invention has the beneficial effects that:

(1) the utility model adopts the motor to be connected with the screw rod, the motor drives the screw rod to rotate when in operation, the screw rod rotates to drive the screw rod nut to ascend or descend, and further drives the piston to ascend and descend, a plurality of optical axes connected with the lifting platform are arranged on the piston, so that the lifting platform moves up and down along with the piston, the motor outputs at a constant speed to drive the piston to move up and down at a constant speed, the whole operation is more stable, and the plurality of optical axes are uniformly distributed around the lifting platform and the piston, so that the whole stress is more uniform, the motion stability is improved, and the carried load is larger;

(2) the utility model discloses be provided with linear guide on the fixed plate of mount both sides perpendicularly, the piston correspond both sides be provided with linear guide complex slider, the piston passes through simultaneously at the in-process that goes up and down slider and linear guide's cooperation is strengthened the stability that the piston removed, makes to play and keeps the level at the lift in-process, and then makes the lift platform atress even, at the uniform velocity even running avoids causing the machine to damage or the platform atress is unbalanced, improves printing stability and precision.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

FIG. 2 is a schematic view of the installation structure of the lifting device of the present invention;

FIG. 3 is a schematic view of the lifting device of the present invention;

fig. 4 is a front view of the lifting device of the present invention;

in the figure:

1. a cylinder body;

11. a lifting platform;

2. a fixed mount;

21. a base plate; 22. a fixing plate; 23. a linear guide rail; 24. an induction device; 25. a drag chain;

3. a lifting device;

31. a screw rod; 32. a motor; 33. a piston; 34. an optical axis;

311. a lead screw nut; 331. a slider; 332. an induction sheet;

4. and a bearing.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1-4, a printing platform lifting mechanism for a 3D printer forming cylinder includes a cylinder body 1, a fixing frame 2 and a lifting device 3, the fixing frame 2 is disposed below the cylinder body 1, the lifting device 3 is disposed on the fixing frame 2, the lifting device 3 passes through the bottom of the cylinder body 1 and is connected to a lifting platform 11 disposed in the cylinder body 1, the lifting device 3 includes a screw rod 31, a motor 32, a piston 33 and a plurality of optical axes 34 disposed on the piston 33, the lifting device 3 is connected to the lifting platform 11 through the optical axes 34, when the mechanism operates, the motor 32 drives the screw rod 31 to rotate to drive the piston 33 to lift, and the piston 33 further drives the lifting platform 11 to lift and descend through the optical axes 34.

Referring to fig. 1-2, the fixing frame 2 includes a bottom plate 21 and fixing plates 22 disposed at two sides of the bottom plate 21, the fixing plates 22 are disposed at the bottom of the cylinder 1, linear guide rails 23 are vertically disposed on inner side walls of the fixing plates 22, sliders 331 engaged with the linear guide rails 23 are disposed at two sides of the piston 33, and the sliders 331 move on the linear guide rails 23. When the lifting mechanism operates, the piston 33 is lifted along the vertically arranged screw rod 31, the two sides of the piston 33 slide on the linear slide rail 23 through the sliding blocks 331, the piston 33 is laterally limited, the situation that the piston 33 is deflected due to unbalance stress in the motion process is avoided, the printing precision is influenced, the sliding blocks 331 on the two sides and the linear guide rail 23 are matched to simultaneously support the piston 33, and the load capacity and the operation stability are improved.

Referring to fig. 3-4, an induction device 24 is disposed in the fixing frame 2, an induction sheet 332 corresponding to the induction device 24 is disposed on one side of the piston 33, and the piston 33 monitors the stroke of the lifting device 3 through the induction device 24 and the induction sheet 332 during the movement process, so as to know the stroke change of the lifting platform 11.

This device operation process, motor 32 connects the speed reducer drive lead screw 31 begins rotatoryly, be provided with screw-nut 311 on the lead screw 31, screw-nut 311 with piston 33 rigid coupling, the rotatory screw-nut 311 that drives of lead screw 31 rise and descend, and then drive piston 33 and go up and down, just piston 33 both sides are spacing through slider 331 and linear guide 23, avoid taking place to rotate relatively in the piston 33 motion process and influence the stroke, optical axis 34 evenly connects in

piston

33 and 11 four corners of lift platform, makes through optical axis 34 piston 33 drives lift platform 11 and goes up and down, and whole atress is more even, improves motion stability and delivery load.

In this embodiment, the screw rod 31, the bottom plate 21 and the bottom of the cylinder 1 are fixedly connected through a bearing 4, and the optical axis 34 and the cylinder 1 are fixedly connected through the bearing 4.

In this embodiment, a drag chain 25 is disposed in the fixing frame 2 for placing a pipeline line required by the device.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing platform lifting mechanism for a 3D printer forming cylinder is characterized by comprising,

a cylinder body (1), wherein a lifting platform (11) is arranged in the cylinder body (1),

the fixing frame (2), the fixing frame (2) comprises a bottom plate (21) and fixing plates (22) arranged on two sides of the bottom plate (21), the fixing plates (22) are connected with the bottom of the cylinder body (1),

elevating gear (3), elevating gear (3) set up cylinder body (1) below, elevating gear (3) include lead screw (31), motor (32), piston (33) and set up a plurality of optical axis (34) on piston (33), optical axis (34) with lift platform (11) are connected, motor (32) drive lead screw (31) rotatory drive piston (33) go up and down.

2. The printing platform lifting mechanism for the 3D printer forming cylinder is characterized in that a linear guide rail (23) is vertically arranged on the inner side wall of the fixing plate (22), and two sides of the piston (33) are connected with the linear guide rail (23).

3. Printing platform lifting mechanism for a 3D printer forming cylinder according to claim 2, characterized in that the piston (33) is provided with sliding blocks (331) on both sides cooperating with the linear guide (23), the sliding blocks (331) moving on the linear guide (23).

4. The printing platform lifting mechanism for the 3D printer forming cylinder is characterized in that the screw rod (31) is fixedly connected with the bottom plate (21) and the bottom of the cylinder body (1) through a bearing (4).

5. The printing platform lifting mechanism for the 3D printer forming cylinder is characterized in that a lead screw nut (311) is arranged on the lead screw (31), and the lead screw nut (311) is fixedly connected with the piston (33).

6. The printing platform lifting mechanism for the 3D printer forming cylinder is characterized in that a sensing device (24) is arranged in the fixed frame (2), and a sensing sheet (332) corresponding to the sensing device (24) is arranged on one side of the piston (33).

7. The printing platform lifting mechanism for the 3D printer forming cylinder according to claim 1, characterized in that the optical axes (34) are evenly distributed at four corners of the top of the piston (33).

8. The printing platform lifting mechanism for the 3D printer forming cylinder is characterized in that the optical axis (34) penetrates through a bottom plate (21) of the cylinder body (1) to be connected with the lifting platform (11), and the optical axis (34) and the cylinder body (1) are fixed through a bearing (4).

9. Printing platform lifting mechanism for a 3D printer forming cylinder according to claim 1, characterized in that a drag chain (25) is arranged in the fixed frame (2).