阅读说明：本技术 一种筒体3d打印系统 (Barrel 3D printing system ) 是由 孙常奋 于 2020-11-23 设计创作，主要内容包括：本发明公开了一种筒体3D打印系统,系统包括金属丝、打印头、筒体、滚筒、芯棒、回转支撑盘,回转支撑盘用于旋转的支撑待打印筒体,金属丝通过打印头垂直向下按打印路径送丝来打印筒体,滚筒同轴转动的套接在芯棒上,且滚筒的外周面覆盖筒体的壁厚正对筒体设置,以此向筒体向下施加压力。本系统能破碎3D打印原始枝晶组织,细化晶粒,提高了产品3D打印内部质量,省去了常规3D打印必须的热等静压处理,适应于大规格筒体3D打印。(The invention discloses a 3D printing system for a cylinder, which comprises a metal wire, a printing head, a cylinder, a roller, a core rod and a rotary supporting plate, wherein the rotary supporting plate is used for rotatably supporting the cylinder to be printed, the metal wire vertically downwards sends wires through the printing head according to a printing path to print the cylinder, the roller is coaxially and rotatably sleeved on the core rod, the wall thickness of the outer peripheral surface of the roller, which covers the cylinder, is opposite to the cylinder, so that the pressure is applied downwards to the cylinder. The system can crush 3D and print original dendritic crystal tissues, refine crystal grains, improve the 3D printing internal quality of products, save the hot isostatic pressing treatment required by conventional 3D printing, and is suitable for 3D printing of large-specification cylinders.)

1. The utility model provides a barrel 3D printing system which characterized in that: the system comprises a metal wire (1), a printing head (2), a cylinder body (3), a roller (4), a core rod (5) and a rotary supporting plate (6), wherein the rotary supporting plate (6) is used for rotatably supporting the cylinder body (3) to be printed, the metal wire (1) vertically downwards sends a wire to print the cylinder body (3) according to a printing path through the printing head (2), the roller (4) is sleeved on the core rod (5) in a coaxial rotating mode, the wall thickness of the outer peripheral surface of the roller (4) covering the cylinder body (3) is just opposite to the cylinder body (3), and therefore pressure is applied to the cylinder body (3) downwards.

2. The barrel 3D printing system of claim 1, wherein: the core rod (5) is supported by a core rod supporting frame with adjustable height, the core rod supporting frame is driven by a motor and a slide rail to be adjustable along with the printing speed of the cylinder body (3) with adjustable height, and the distance between the core rod supporting frame and the core rod (5) which is clamped by the core rod supporting frame and is opposite to the printing head (2) is adjustable.

3. The barrel 3D printing system of claim 1, wherein: the core rod (5) is a heating rod, and a thermocouple is arranged to detect and adjust the temperature of the core rod (5) to adjust the surface temperature of the roller (4), so that the temperature is suitable for crushing the original dendritic structure in the printing piece cylinder (3), the crystal grains are refined, and the internal quality of the product is improved.

4. The barrel 3D printing system of claim 3, wherein: the surface temperature of the roller (4) is higher than that of the roller (3) at the position where the pressure is applied, and the surface temperature enables the position of the pressure-applied roller to be higher than the metal recrystallization temperature after 3D printing and has enough plasticity.

5. The barrel 3D printing system of claim 1, wherein: the distance between the mandrel (5) and the roller (4) and the printing head (2) in the horizontal plane is adjustable, so that the temperature of the pressed cylinder position after 3D printing is higher than the metal recrystallization temperature, and the pressed cylinder position has enough plasticity.

6. The barrel 3D printing system of claim 1, wherein: the cylinder body (3) is a regular convolution body including but not limited to a cylinder and a regular cylinder body.

Technical Field

The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printing system for a cylinder.

Background

In the existing process for printing metal materials on a cylinder in a 3D mode, referring to fig. 1, the cylinder 9 is placed on a rotary support plate 10 to rotate horizontally, a metal wire 7 is fed through a printing head 8, and the cylinder 9 is printed in a vertically downward 3D mode. If the product size is smaller, the appearance is less than or equal to phi 200 multiplied by 300, the requirement on the internal quality is higher, and the hot isostatic pressing treatment is usually carried out after 3D printing, so that the cost is higher. If the product size is larger and the appearance is larger than phi 200 multiplied by 300, only stress annealing treatment can be carried out, the product keeps the original 3D printing cast structure, and the product performance anisotropy is serious due to the crystal directionality, so that the normal use of the product is influenced.

Disclosure of Invention

In order to overcome the disadvantages of the prior art, the present invention aims to provide a 3D printing system for a cylinder, which can solve the above problems.

The purpose of the invention is realized by adopting the following technical scheme:

the utility model provides a barrel 3D printing system, the system includes the wire, beats printer head, barrel, cylinder, plug, gyration supporting disk, and the gyration supporting disk is used for rotatory support to wait to print the barrel, and the wire send the silk to print the barrel according to printing the route perpendicularly downwards through beating printer head, the coaxial pivoted of cylinder cup joints on the plug, and the outer peripheral face of cylinder covers the wall thickness of barrel and just sets up to the barrel to this exerts pressure downwards to the barrel.

Preferably, the mandrel is supported by a mandrel support frame with adjustable height, the mandrel support frame is driven by a motor and a slide rail to be adjustable along with the printing speed of the cylinder, and the distance between the mandrel support frame and the mandrel clamped by the mandrel support frame relative to the printing head is adjustable.

Preferably, the mandrel and the roller are adjustable in distance from the print head in the horizontal plane to ensure that the pressed cylinder position is above the metal recrystallization temperature after 3D printing and has sufficient plasticity.

Compared with the prior art, the invention has the beneficial effects that: the system can crush 3D and print original dendritic crystal tissues, refine crystal grains, improve the 3D printing internal quality of products, save the hot isostatic pressing treatment required by conventional 3D printing, and is suitable for 3D printing of large-specification cylinders.

Drawings

FIG. 1 is a schematic diagram of a prior art 3D printing system;

fig. 2 is a schematic diagram of a 3D printing system of the present invention.

In the figure: 1. a metal wire; 2. a print head; 3. a barrel; 4. a drum; 5. a core rod; 6. a rotation support plate; 7. a metal wire; 8. a print head; 9. a barrel; 10. and a rotary support plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

A3D printing system for a cylinder body is shown in figure 2 and comprises a metal wire 1, a printing head 2, a cylinder body 3, a roller 4, a core rod 5 and a rotary supporting plate 6.

The rotary support plate 6 is used for rotatably supporting the cylinder 3 to be printed, the metal wire 1 is vertically fed downwards through the printing head 2 according to a printing path to print the cylinder 3, the roller 4 is coaxially sleeved on the core rod 5 in a rotating mode, the wall thickness of the outer peripheral surface of the roller 4 covering the cylinder 3 is arranged right opposite to the cylinder 3, namely, the core rod 5 and the roller 4 rotate vertically on the horizontal plane and apply pressure downwards, and therefore the pressure is applied downwards to the cylinder 3.

When the 3D printing cylinder body 3 is used, the original dendritic crystal structure can be broken, crystal grains are refined, the internal quality of 3D printing of a product is improved, the hot isostatic pressing treatment required by conventional 3D printing is omitted, and the 3D printing cylinder body is suitable for 3D printing of large-specification cylinder bodies.

The mandrel 5 is supported by a mandrel support frame (not shown) with adjustable height, the mandrel support frame is driven by a motor and a slide rail to be adjustable along with the printing speed of the cylinder 3, and the distance between the mandrel support frame and the mandrel 5, which is clamped by the mandrel support frame, relative to the printing head 2 is adjustable.

In one embodiment, the mandrel 5 is a heating rod, and a thermocouple is arranged to detect and adjust the temperature of the mandrel 5 to adjust the surface temperature of the cylinder 4, and make the temperature suitable for breaking the original dendritic structure inside the cylinder 3 of the printing piece, so as to refine the grains and improve the internal quality of the product.

It is ensured that sufficient plasticity is obtained by the surface temperature of the cylinder 4 being greater than the surface temperature of the cylinder 3 where the pressure is applied, and said surface temperature being such that the pressure cylinder position is at a temperature greater than the metal recrystallization temperature after 3D printing.

In another embodiment, the mandrel 5 and the platen 4 are adjustable in distance from the print head 2 in the horizontal plane to ensure that the pressed cylinder position is above the metal recrystallization temperature after 3D printing and has sufficient plasticity.

The cylinder 3 for printing is a regular convolution including but not limited to a cylinder, a regular cylinder, and is not suitable for a large convolution.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.