CN210851335U

CN210851335U - Glass composite heating bed

Info

Publication number: CN210851335U
Application number: CN201920975812.6U
Authority: CN
Inventors: 陈锡然
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-06-26
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a glass composite heating bed, including the heating circuit board, the glass substrate that are used for the heating, heating circuit board fixed connection is in the glass substrate back, the heating circuit board is formed with aluminium base circuit board processing, is connected with the power electricity. The glass composite heating bed of the utility model is processed into the composite heating bed by taking the glass plate as the base material, the flatness of the composite heating bed is ensured by the glass plate, the composite heating bed has good surface flatness, and the appearance can be kept for a long time without bending; the aluminum-based heating circuit board or other heating circuit boards are only used for heating glass, and the surface flatness of the heating printing platform cannot be influenced due to the fact that the glass substrates are separated by the fine deformation bending of the aluminum-based heating circuit board or other heating circuit boards; the printing machine is mainly applied to FDM plastic printers and the like to print various plastic materials.

Description

Glass composite heating bed

Technical Field

The utility model relates to a 3D printing apparatus technical field specifically relates to a be applied to compound hot bed of glass of FDM printer.

Background

FDM3D printing has been a 3D printing technology that is well known and has been attracting attention and discussion. But the practicability is not strong enough at present due to the limitation of the materials and the process.

The FDM plastic printer can print models and products well only by using a printing platform with a heating function, the platform needs to be flat in surface, the flatness of the platform needs to be smaller than the thickness of each printed layer, and the thickness of each layer of the common plastic printer is 0.1-0.3mm, so that the precision requirement on the flatness of the surface of the platform needs to be smaller than 0.1mm for normal modeling, the precision of the FDM printer is better in the future, and the requirement on the flatness of the surface of a hot bed is increased along with the precision requirement.

The attached high temperature beautiful line paper sticky tape in aluminium base board surface of thick point of present FDM plastic printer generally uses, as heating print platform, but aluminium base board is difficult to keep the plane degree as thin aluminum plate structure, and other metal material also can hardly accomplish in cold and hot circulation and long-term use and keep the surface roughness and do not produce the bending even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound hot bed of glass to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a glass composite heating bed, is including the heating circuit board, the glass substrate that are used for the heating, heating circuit board fixed connection is in the glass substrate back, the heating circuit board is formed with aluminium base circuit board or other material circuit board processing, is connected with the power electricity. Here, by processing the glass plate as a base material into the composite heat bed, the flatness of the composite heat bed is ensured by the glass plate, and the composite heat bed has excellent surface flatness and can keep the shape from being bent for a long time. The aluminum-based circuit board or the circuit board made of other materials is only used for heating glass, and the surface flatness of the heating printing platform cannot be influenced due to the fact that the glass substrates are separated by the fine deformation bending of the aluminum-based circuit board or the circuit board made of other materials.

Preferably, the glass composite heating bed further comprises a high-temperature-resistant colloid printing coating, and the high-temperature-resistant colloid printing coating is directly compounded on the front surface of the base material glass. By compounding or pasting the printing material on the front surface of the glass, the printed model can be well adhered, and the performance of the adhesive is superior to that of adhering the figure paper on the surface of the aluminum substrate. Here, other materials may be used for the printing surface layer.

In order to ensure the overall flatness of the platform, it is preferable that the glass substrate is made of float ordinary glass or float heat-resistant glass.

In order to ensure the fixing firmness of the heating circuit board and the glass substrate and to ensure uniform heating, it is preferable that the heating circuit board is fixedly connected with the back of the glass through a point-shaped bonding layer composed of a plurality of uniformly distributed bonding points.

Preferably, the heating circuit board is provided with a pad for connecting with an external power line, and the external power line is connected with the heating circuit board through the pad. The welding disc is arranged, so that the heating circuit board can be conveniently connected with an external power supply.

Preferably, the pad is connected to an external power supply via a pluggable terminal or a direct soldered external power supply line.

In order to accurately test and control the temperature of the heating bed, preferably, a temperature measuring resistor is arranged in the middle of the heating circuit board and is connected with the outside through a temperature measuring wire.

For being connected the use as a whole with glass composite heating bed and 3D printer host computer, preferably, the four corners of the circuit board that generates heat is respectively through fastening structure and 3D printer's heating bed support fixed connection.

Preferably, the fastening structure is a T-shaped patch nut, a T-shaped screw or a magnetic member, the fastening structure is welded or adhered to the surface of the heating circuit board, and the heating circuit board is fixed to the printer through a structure matched with the fastening structure or a structure with a magnetic member.

Compared with the prior art, the beneficial effects of the utility model are that: the glass composite heating bed of the utility model is processed into the composite heating bed by taking the glass plate as the base material, the flatness of the composite heating bed is ensured by the glass plate, the composite heating bed has good surface flatness, and the appearance can be kept for a long time without bending; the aluminum-based heating circuit board or other heating material circuit boards are only used for heating glass, and the surface flatness of the heating printing platform cannot be influenced due to the fact that the glass substrates are separated by the fine deformation bending of the aluminum-based heating circuit board or other heating material circuit boards; the printing machine is mainly applied to FDM plastic printers and the like to print various plastic materials.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention;

wherein: 1. the temperature measuring device comprises a heating circuit board, 2 a glass substrate, 3 a high-temperature-resistant glue printing coating, 4 a dotted bonding layer, 5 a bonding pad, 6 a temperature measuring resistor and 7 a T-shaped patch nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

Referring to fig. 1, the glass composite heating bed comprises a heating circuit board 1 for heating and a glass substrate 2, wherein the heating circuit board 1 is fixedly connected to the back of the glass substrate 2, and the heating circuit board 1 is formed by processing an aluminum-based circuit board and is electrically connected with a power supply.

The glass composite heating bed also comprises a high-temperature-resistant colloid printing coating 3, and the high-temperature-resistant colloid printing coating 3 is directly compounded on the front surface of the base material glass.

The glass substrate 2 adopts float common glass or float heat-resistant glass as a base plate.

The heating circuit board 1 is fixedly connected with the back of the glass through a point-shaped bonding layer 4 consisting of a plurality of uniformly distributed bonding points.

The heating circuit board 1 is provided with a pad 5 used for being connected with an external power line, and the external power line is connected with the heating circuit board 1 through the pad 5. Here, the land 5 is provided near one side edge of the heat generating circuit board 1 for wiring. The pads 5 are connected to an external power supply via pluggable terminals or directly soldered external power lines.

In order to accurately test and control the temperature of the heating bed, the middle part of the heating circuit board 1 is provided with a temperature measuring resistor 6, and the temperature measuring resistor 6 is connected with the outside through a temperature measuring wire.

For being connected the use as a whole with glass composite heating bed and 3D printer host computer, the four corners of the circuit board 1 that generates heat is respectively through fastening structure and 3D printer's heating bed support fixed connection. Here, the fastening structure is a T-shaped chip nut 7 welded or adhered to the back surface of the heat generating circuit board 1, and the heat generating circuit board 1 is fixed to the printer by a screw or a screw with a magnetic member that is matched with the T-shaped chip nut 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a glass composite heating bed, its characterized in that, is including the circuit board, the glass base plate that generate heat that are used for the heating, circuit board fixed connection in the glass base plate back generates heat, the circuit board that generates heat forms, is connected with the power electricity with aluminium base circuit board processing, glass composite heating bed still includes that high temperature resistant colloid prints the coating, high temperature resistant colloid prints the direct complex of coating in substrate glass openly, be equipped with the pad that is used for being connected with the external power line on the circuit board that generates heat, external power line passes through the pad and is connected with the circuit board that generates heat.

2. The glass composite hotbed according to claim 1, wherein the glass substrate is made of float ordinary glass or float pyrex glass as a base plate.

3. The glass composite hotbed according to claim 2, wherein the heat-generating circuit board is fixedly connected to the back of the glass by a spot-like adhesive layer consisting of a plurality of uniformly distributed adhesive dots.

4. The glass composite heating bed according to claim 2, wherein a temperature measuring resistor is arranged in the middle of the heating circuit board and is connected with the outside through a temperature measuring wire.

5. The glass composite heat bed of claim 4, wherein said bonding pads are connected to an external power source through either pluggable terminals or direct soldered external power wires.

6. The glass composite heating bed according to claim 5, wherein four corners of the heating circuit board are fixedly connected with a heating bed supporting bracket of the 3D printer through fastening structures respectively.

7. The glass composite heating bed according to claim 6, wherein the fastening structure is a T-shaped patch nut, a T-shaped screw or a magnetic member, the fastening structure is welded or adhered to the surface of the heating circuit board, and the heating circuit board is fixed to the printer through a structure matched with the fastening structure or a structure with a magnetic member.