Double-area vacuum adsorption platform device of 3D printer

Abstract

The utility model discloses a double-area vacuum adsorption platform device of a 3D printer, and belongs to the field of 3D printing. Comprising a platform main body, and a first PEI membrane adsorption assembly and a second PEI membrane adsorption assembly which are arranged on the platform main body. The device has the beneficial effects that through the independent design of the first PEI membrane adsorption assembly and the second PEI membrane adsorption assembly and the combination of the dense grooves and the square bulges on the adsorption surfaces, the uniform distribution of negative pressure and the flexible control of double regions are realized. The configuration of the integrated pipe, the three-way valve and the four-way valve simplifies the gas circuit connection of the first PEI membrane adsorption assembly, and the arrangement of the first valve and the second valve facilitates the independent operation of the gas circuit by a user. In addition, the silica gel plate is externally connected with a heating device, the whole platform can be heated, vacuum adsorption is added after heating, and deformation of materials can be further reduced. According to the embodiment, the structure is reasonable, operation is convenient and fast, and the adsorption efficiency and printing quality of 3D printing can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of 3D printer double-area vacuum suction platform devices, belong to 3D printing field. BACKGROUND

[0002] The printing platform of 3D printer is roughly divided into four kinds, glass platform, aluminum base platform, PEI spring steel plate, magnetic steel plate. There are fixed, there are detachable, various platforms are not the same due to different structures, advantages and disadvantages are not the same, experience and life when using are also different.

[0003] The disadvantage of glass platform, quality is relatively heavy, when taking model, need to use shovel and other tools, if model is larger, or model and platform are relatively firm, it is more laborious when taking, even need to use hammer, it is easy to cause personnel injury or model damage, in addition, glass platform and model are too firm, when taking off, there is a probability to damage glass, appear pit, even cannot be used.

[0004] Compared with glass, aluminum platform has good heat conduction performance and light quality, but other model taking defects are the same as above, still exist.

[0005] PEI spring steel plate and magnetic steel plate, the magnet or soft magnet placed below can be taken down and then model and plate are separated. Compared with glass and aluminum base plate, it is more convenient and fast. But PEI coating is easy to scratch after long time use, and because it is metal material plate, it is easy to bend and cannot be restored. In addition, high temperature and long time use, magnet or soft magnet magnetic property will decay relatively fast, even cannot play a role. The strength of magnetic force is also one aspect, when model shrinks, it is easy to separate with magnetic steel plate (spring steel plate) and soft magnet (magnet) if magnetic force is too weak. If magnetic force is too strong, it is more laborious when taking model and separating. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of 3D printer double-area vacuum suction platform device, can effectively solve the above-mentioned problems.

[0007] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] Including platform main body and first PEI film adsorption component and second PEI film adsorption component being set on the platform main body;The adsorption area of the first PEI film adsorption component is greater than the adsorption area of the second PEI film adsorption component;

[0009] The first PEI membrane adsorption assembly comprises a first adsorption channel penetrating through the upper and lower end faces of the platform body, the first adsorption channel is arranged at the four corner positions of the platform body, and the input end of the first adsorption channel is connected with a first air guide pipe, one end of the first air guide pipe is connected with a first air pump, and the output end of the first adsorption channel is arranged on the adsorption surface of the platform body.

[0010] The second PEI membrane adsorption assembly comprises a second adsorption channel penetrating through the upper and lower end faces of the platform body, the second adsorption channel is arranged at the middle position of the platform body, and the input end of the second adsorption channel is connected with a second air guide pipe, one end of the second air guide pipe is connected with a second air pump, and the output end of the second adsorption channel is arranged on the adsorption surface of the platform body.

[0011] Further, the first PEI membrane adsorption assembly further comprises an integrated pipe, and the number of the first air guide pipes is two; the two first air guide pipes are arranged in parallel and connected with the input ends of the two first adsorption channels respectively; one end of the integrated pipe is connected with one of the first air guide pipes through a three-way valve, the middle part of the integrated pipe is connected with the other first air guide pipe through a four-way valve, and the other end of the integrated pipe is connected with the first air pump.

[0012] Further, the adsorption surface of the platform body is divided into two areas, including a square box type adsorption area located on the first PEI membrane adsorption assembly and a square type adsorption area located on the second PEI membrane adsorption assembly, and the square type adsorption area is sleeved in the square box type adsorption area.

[0013] Further, the square box type adsorption area and the square type adsorption area are separated by a frame strip.

[0014] Further, the integrated pipe is provided with a first valve, and the second air guide pipe is provided with a second valve.

[0015] Further, the non-adsorption surface of the platform body is provided with a silica gel plate.

[0016] Further, the adsorption surface of the platform body is provided with dense grooves, negative pressure uniformly covers the entire printing area, and the dense grooves are composed of gaps between a plurality of square protrusions arranged on the adsorption surface of the platform body.

[0017] Beneficial effects are:

[0018] 1、Through the independent design of the first PEI membrane adsorption assembly and the second PEI membrane adsorption assembly, in combination with the dense grooves and square protrusions on the adsorption surface, uniform distribution of negative pressure and flexible control of double zones are realized. The configuration of the integrated pipe, the three-way valve and the four-way valve simplifies the gas path connection of the first PEI membrane adsorption assembly, and the setting of the first valve and the second valve facilitates the independent operation of the gas path by the user.

[0019] 2、The silica gel plate is externally connected with a heating device, the whole platform can be heated, vacuum adsorption is carried out after heating, and the deformation of the material can be further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to facilitate the description, the utility model is described in detail by the following specific implementation and drawings.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is Figure 1 It is a local enlarged view;

[0023] Figure 3 It is a platform main body adsorption surface view of the utility model;

[0024] Figure 4 It is a platform main body non-adsorption surface view of the utility model.

[0025] Explanation of reference signs:

[0026] 1, platform main body;2, first PEI membrane adsorption assembly;21, first adsorption channel;22, first gas guide pipe;23, integrated pipe;24, three-way valve;25, four-way valve;26, square box type adsorption area;27, first valve;3, second PEI membrane adsorption assembly;31, second adsorption channel;32, second gas guide pipe;33, square adsorption area;34, second valve;4, frame strip;5, silica gel plate;6, square protrusion;7, dense groove. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0028] It should be noted that in the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0029] In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] Meanwhile, in the description of the utility model, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or electrically connected;It can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Reference Figures 1-4 An embodiment of a kind of 3D printer double-zone vacuum adsorption platform device of the utility model,

[0032] The utility model provides a kind of 3D printer double-zone vacuum adsorption platform device, including platform main body 1, and first PEI membrane adsorption component 2 and second PEI membrane adsorption component 3 being set on platform main body 1, the adsorption area of first PEI membrane adsorption component 2 is greater than the adsorption area of second PEI membrane adsorption component 3. While two adsorption areas can work independently, the device realizes flexible fixation to different size printing base material by double-zone independent control vacuum adsorption function, improves stability and precision in printing process.

[0033] Platform main body 1:

[0034] The platform body 1 is the core bearing structure of the device, and its upper surface is the adsorption surface for fixing the printing substrate, and its lower surface is the non-adsorption surface. On the adsorption surface of the platform body 1, the first PEI film adsorption assembly 2 and the second PEI film adsorption assembly 3 are respectively responsible for different adsorption areas. The adsorption surface is divided into two areas: the square box type adsorption area 26 located on the first PEI film adsorption assembly 2 and the square type adsorption area 33 located on the second PEI film adsorption assembly 3. The square type adsorption area 33 is nested inside the square box type adsorption area 26, and the two are separated by a frame strip 4 to ensure the independence of the adsorption areas. The adsorption surface is distributed with dense grooves 7 composed of gaps between a plurality of square protrusions 6 arranged in an array, and the negative pressure uniformly covers the entire adsorption area through these grooves, thereby effectively preventing the printing substrate from warping.

[0035] The first PEI film adsorption assembly 2:

[0036] The first PEI film adsorption assembly 2 includes four first adsorption channels 21, which are respectively arranged at the four corner positions of the platform body 1 and penetrate the upper and lower end surfaces of the platform body 1. The output end of the first adsorption channel 21 is located on the adsorption surface and directly acts on the square box type adsorption area 26; and its input end is connected with the external air path through a first air guide pipe 22. In the embodiment, the number of first air guide pipes 22 is two, which are arranged in parallel, and each first air guide pipe 22 is connected with two first adsorption channels 21 located at opposite positions. In order to simplify the air path layout, the first PEI film adsorption assembly 2 further includes an integrated pipe 23 for converging the air path to the first air pump. One end of the integrated pipe 23 is connected with one of the first air guide pipes 22 through a three-way valve 24, the middle part is connected with the other first air guide pipe 22 through a four-way valve 25, and the other end of the integrated pipe 23 is connected with the first air pump. In addition, the first valve 27 is also arranged on the integrated pipe 23 for controlling the air path switch of the first PEI film adsorption assembly 2.

[0037] Working principle of the first PEI film adsorption assembly 2:

[0038] The first PEI film is placed on the adsorption surface of the platform body 1 and fits the square box type adsorption area 26; the first valve 27 is opened, and the first air pump is started to perform air suction, at this time, the air path channel of the first PEI film adsorption assembly 2 forms negative pressure, and the gas enters the first air guide pipe 22 from the dense grooves 7 composed of the gaps between the square protrusions 6, and then enters the integrated pipe 23 from the first air guide pipe 22, thereby completing the adsorption of the first PEI film.

[0039] The second PEI membrane adsorption assembly 3 is relatively simple in structure, which comprises a second adsorption channel 31 arranged at the middle position of the platform body 1 and penetrating through the upper and lower end faces of the platform body 1. The output end of the second adsorption channel 31 is located at the adsorption face and corresponds to the square adsorption area 33; and the input end is connected with the second air pump through the second air guide pipe 32. The second air guide pipe 32 is provided with a second valve 34 for controlling the air path switch of the second PEI membrane adsorption assembly 3.

[0040] Working principle of the second PEI membrane adsorption assembly 3:

[0041] The second PEI membrane is placed on the adsorption face of the platform body 1 and fitted in the square adsorption area 33; the second valve 34 is opened, and the second air pump is started to perform air suction, at this time, the air path channel of the second PEI membrane adsorption assembly 3 forms a negative pressure, and the gas enters the second air guide pipe 32 from the dense grooves 7 formed between the square protrusions 6, thereby completing the adsorption of the second PEI membrane.

[0042] Heating of the silica gel plate 5 to the platform body 1:

[0043] The silica gel plate 5 is connected with a heating device, the silica gel plate 5 is heated by the heating device, and the heated silica gel plate 5 can heat the entire printing platform; when printing materials such as ABS, nylon, ASA and PC which have a large shrinkage rate and are easy to warp, the entire platform can be heated, and after heating, vacuum adsorption is performed, which can further reduce the deformation of the material. For example, when printing ASA, the platform temperature is heated to 100℃, and vacuum adsorption is started at the same time, so as to achieve double anti-warping and minimize the model warping.

[0044] Working principle:

[0045] When using the device, the user can select a suitable adsorption area according to the size of the printed substrate. When a substrate with a large size needs to be printed, the first air pump is started and the first valve 27 is opened, at this time, the negative pressure is transmitted to the first adsorption channel 21 through the integrated pipe 23, the three-way valve 24, the four-way valve 25 and the two first air guide pipes 22, and finally acts on the square box adsorption area 26 to firmly adsorb the substrate in the area. When a substrate with a small size needs to be printed, the second air pump is started and the second valve 34 is opened, the negative pressure is transmitted to the second adsorption channel 31 through the second air guide pipe 32, and acts on the square adsorption area 33 to adsorb the substrate in the area. According to actual needs, the user can also start the first air pump and the second air pump at the same time, so that the square box adsorption area 26 and the square adsorption area 33 work at the same time to adapt to substrates with special shapes or sizes.

[0046] At the same time, when the first PEI film is adsorbed, the shape of the first PEI film is not necessarily a square box, but also a square film with a size similar to the adsorption surface of the platform body 1. At this time, the second air pump can be started, and the function of the second PEI film adsorption assembly 3 is used for adsorption assistance, so that the square first PEI film is adsorbed more firmly.

[0047] The present embodiment realizes uniform distribution of negative pressure and flexible control of double zones through independent design of the first PEI film adsorption assembly 2 and the second PEI film adsorption assembly 3, in combination with the dense grooves 7 and square protrusions 6 on the adsorption surface. The configuration of the integrated pipe 23, the three-way valve 24 and the four-way valve 25 simplifies the gas path connection of the first PEI film adsorption assembly 2, and the setting of the first valve 27 and the second valve 34 facilitates the independent operation of the gas path by the user. In addition, the silica gel plate 5 is externally connected to a heating device, which can heat the entire platform. After heating, vacuum adsorption can be performed, which can further reduce the deformation of the material.

[0048] Obviously, the above embodiments are only examples for the purpose of clear illustration, and are not intended to limit the embodiments. Based on the above description, those skilled in the art can make other different forms of changes or variations. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A dual-zone vacuum adsorption platform device for a 3D printer, characterized in that: The system includes a platform body (1) and a first PEI membrane adsorption assembly (2) and a second PEI membrane adsorption assembly (3) disposed on the platform body (1). The adsorption area of ​​the first PEI membrane adsorption assembly (2) is larger than the adsorption area of ​​the second PEI membrane adsorption assembly (3). The first PEI membrane adsorption assembly (2) includes a first adsorption channel (21) penetrating the upper and lower end faces of the platform body (1). The first adsorption channel (21) is disposed at the four corners of the platform body (1). The input end of the first adsorption channel (21) is connected to a first air guide pipe (22), and one end of the first air guide pipe (22) is connected to a first air pump. The output end of the first adsorption channel (21) is disposed on the adsorption surface of the platform body (1). The second PEI membrane adsorption assembly (3) includes a second adsorption channel (31) that runs through the upper and lower surfaces of the platform body (1). The second adsorption channel (31) is located in the middle of the platform body (1). The input end of the second adsorption channel (31) is connected to a second air guide pipe (32), and one end of the second air guide pipe (32) is connected to a second air pump. The output end of the second adsorption channel (31) is located on the adsorption surface of the platform body (1).

2. The dual-zone vacuum adsorption platform device for 3D printers according to claim 1, characterized in that: The first PEI membrane adsorption assembly (2) also includes an integrated tube (23), and there are two first air guide tubes (22); the two first air guide tubes (22) are arranged in parallel and are respectively connected to the input ends of the two first adsorption channels (21); the end of the integrated tube (23) is connected to one of the first air guide tubes (22) through a three-way valve (24), the middle part of the integrated tube (23) is connected to the other first air guide tube (22) through a four-way valve (25), and the other end of the integrated tube (23) is connected to the first air pump.

3. The dual-zone vacuum adsorption platform device for 3D printers according to claim 2, characterized in that: The platform body (1) has two adsorption surfaces, including a square adsorption area (26) on the first PEI membrane adsorption component (2) and a square adsorption area (33) on the second PEI membrane adsorption component (3). The square adsorption area (33) is nested within the square adsorption area (26).

4. The dual-zone vacuum adsorption platform device for 3D printers according to claim 3, characterized in that: The square adsorption region (26) and the square adsorption region (33) are separated by a frame strip (4).

5. The dual-zone vacuum adsorption platform device for 3D printers according to claim 4, characterized in that: The integrated tube (23) is provided with a first valve (27), and the second air guide tube (32) is provided with a second valve (34).

6. The dual-zone vacuum adsorption platform device for 3D printers according to claim 1, characterized in that: A silicone plate (5) is provided on the non-adsorption surface of the platform body (1).

7. The dual-zone vacuum adsorption platform device for 3D printers according to claim 1, characterized in that: The platform body (1) has densely distributed grooves (7) on its adsorption surface, and the negative pressure uniformly covers the entire printing area. The dense grooves are formed by the gaps between several square protrusions (6) arrayed on the adsorption surface of the platform body (1).

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