CN211248333U - Heating and pressurizing device and 3D printer thereof - Google Patents

Abstract

The utility model relates to the technical field of machinery, more specifically relates to a heating and pressurizing device and 3D printer thereof. The device comprises a heating device for eliminating internal stress and a pressurizing device for improving compactness, wherein a controller for controlling the heating device and the pressurizing device is arranged on the device. The utility model discloses a fine and close degree of product is improved simultaneously to heating device and pressure device's setting can effectively solve the problem of the stress defect that 3D printed the product.

Description

Heating and pressurizing device and 3D printer thereof

Technical Field

The utility model relates to the technical field of machinery, more specifically relates to a heating and pressurizing device and 3D printer thereof.

Background

The laser 3D printing can be used for compounding various materials, metallurgical bonding among various components is realized, and the method is one of effective means for preparing composite materials and alloys at present. In recent years, laser 3D printing memory alloys have been greatly developed in the aspects of technology and process, but the 3D printing products prepared at present are simply stacked and combined layer by layer, and the compactness, stress defects and the like of the 3D printing products are important factors influencing the quality of the products.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the problem of the fine and close degree of above-mentioned prior art difference, stress defect, provide a heating pressure device, can solve fine and close degree and stress defect's problem through the setting.

In this technical scheme, a heating pressure device is provided, the device is including the heating device that is used for eliminating the internal stress and the pressure device that is used for improving compactness, be equipped with the controller that is used for controlling heating device and pressure device on the device.

The utility model discloses a fine and close degree of product is improved simultaneously to heating device and pressure device's setting can effectively solve the problem of the stress defect that 3D printed the product. Preferably, the heating device includes a heater and a heater fixing plate for fixing the heater, and the heater is mounted on the heater fixing plate. This is provided to better secure the heater.

Preferably, the controller comprises a first controller for controlling the heater, the heater is further provided with a temperature detector, and the first controller is electrically connected with the temperature detector. The temperature detector is used for detecting the temperature and transmitting the detected temperature to the first controller, the controller is used for controlling the heater to heat or suspend heating, and the temperature of the pressurizing wheel is controlled, so that heat is provided when the pressurizing wheel is in contact with a product to keep the temperature, and the defect of stress concentration in the product caused by temperature change is reduced.

Preferably, the pressurizing device comprises a pressurizing structure for pressurizing and a regulator for transmitting the acting force to regulate the working state of the pressurizing structure, and the regulator is connected with the pressurizing structure. The pressure of the pressure wheel to the workpiece is adjusted through the regulator, so that the compactness of the workpiece is improved.

Preferably, the pressurizing structure is a pressurizing wheel, and the regulator is a cylinder. The pressurization part is driven by the cylinder, can adjust its pressure size, and simultaneously, the optional region after realizing that the pressure wheel pair 3D prints carries out the hammering effect. It should be noted that this is only preferred and not a restrictive provision, and that other means of pressurizing and adjusting the pressurizing structure are possible.

Preferably, the cylinder comprises a cylinder body and a piston rod, the piston rod is movably connected with the cylinder body, and the pressure wheel is mounted at the free end of the piston rod; the controller includes a second controller for adjusting the amount of pressure applied by the piston rod. The second controller is a pressure regulating valve for regulating the air pressure, so as to regulate the pressure exerted by the pressure wheel.

Preferably, the pressure wheel is connected with the free end of the piston rod through a rotating structure, the rotating structure comprises a pinch roller support and a rotating bearing, one end of the pinch roller support is fixedly installed at the free end of the piston rod, the other end of the pinch roller support is provided with a mounting hole through which the rotating bearing penetrates, and the rotating bearing penetrates through the mounting hole to be rotatably connected with the pressure wheel. This is provided to provide a rolling pressure wheel.

Preferably, the heating device comprises a heater, the controller comprises a first controller for controlling the heater, the heater is further provided with a temperature detector, the heater is mounted on the heater fixing plate, and the heater is located in the middle or the adjacent position of the pressurizing wheel. Preferably, the pressurizing part is of a rolling structure, the rolling structure is fixed by two side supports, the rolling pressurizing wheel is of a hollow structure, and a heater is arranged in the hollow position of the rolling pressurizing wheel to heat the rolling wheel.

Preferably, the means for relieving internal stresses and the means for increasing the compactness are integrated.

The utility model also provides a 3D printer, the 3D printer includes foretell heating and pressurizing device, the 3D printer is equipped with the laser head of printing, heating and pressurizing device passes through connecting plate and laser head fixed connection. The arrangement is to realize the heating and pressurizing post-treatment process following the printing track in real time.

Preferably, the 3D printer still is equipped with mobilizable workstation, the workstation top is all located to laser head and heating pressure device. The arrangement is that when the laser head of the printing head and the working platform move relatively, the heating and pressurizing device and the working platform also do the same relative movement. Because the 3D printer platform has the removal, consequently heating pressure device has follow-up function, and the pressure parts sets up to the form of rolling, heats the wheel that rolls simultaneously and can make it in time pressurize the region that 3D printed, still provides the heat preservation effect simultaneously.

Compared with the prior art, the beneficial effects are:

the utility model discloses a heating device and pressure device's setting can be solved fine and close degree and stress defect's problem. The laser head of the printing head part and the working platform can move relatively, and the heating and pressurizing device and the 3D printing head keep the relative position unchanged, namely the same relative motion with the working platform. The 3D printer platform is movable, so the heating and pressurizing device has a follow-up function, the pressurizing part is arranged in a rolling mode, and the rolling wheels are heated to pressurize a 3D printing area in time and provide a heat preservation effect; therefore, the area after 3D printing is heated, insulated, internal stress eliminated and pressed, and compactness is improved.

Drawings

Fig. 1 is a schematic structural view of the heating and pressurizing device of the present invention.

Fig. 2 is a schematic view of a part of the structure of the 3D printer after being installed with the heating and pressurizing device.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example one

Fig. 1 shows a first embodiment of a heating and pressurizing device according to the present invention, which includes a heating device 1 for eliminating internal stress and a pressurizing device 2 for improving compactness, and a controller for controlling the heating device 1 and the pressurizing device 2 is provided on the device.

The heating device 1 includes a heater 11 and a heater fixing plate 12 for fixing the heater, and the heater 11 is mounted on the heater fixing plate 12. This is provided to better secure the heater.

In addition, the controller comprises a first controller used for controlling the heater 11, a temperature detector 13 is further arranged on the heater 11, and the first controller is electrically connected with the temperature detector 13. The arrangement is that the temperature is detected by the temperature detector and then transmitted to the first controller, and the heater is controlled by the controller to heat or suspend heating. It should be noted that the first controller may be a 51-chip microcomputer or other available control structures.

Wherein, the pressurizing device 2 comprises a pressurizing structure 21 for pressurizing and a regulator 22 for transmitting force to regulate the working state of the pressurizing structure 21, and the regulator 22 is connected with the pressurizing structure 21. The arrangement is to generate the required pressure by the regulator, and the workpiece is pressurized by the pressurizing structure, so that the compactness of the workpiece is improved.

In addition, the pressurizing structure 21 is a pressurizing wheel, and the regulator 22 is a cylinder. The pressurization part is driven by the cylinder, can adjust its pressure size through the size of adjusting atmospheric pressure, simultaneously, can select to realize that the pressure wheel carries out the hammering effect to the region after 3D prints. It should be noted that this is only preferred and not a restrictive provision, and that other means of pressurizing and adjusting the pressurizing structure are possible.

The cylinder comprises a cylinder body 221 and a piston rod 222, the piston rod 222 is movably connected with the cylinder body 221, and the pressure wheel is mounted at the free end of the piston rod 222; the controller includes a second controller mounted on the cylinder for adjusting the operating state of the piston rod 222. The arrangement is such that the second controller controls the movement of the piston rod to adjust the amount of pressure applied by the pressure wheel.

In addition, the pressure wheel is connected with the free end of the piston rod 222 through a rotating structure, the rotating structure comprises a pressure wheel bracket 223 and a rotating bearing 224, one end of the pressure wheel bracket 223 is fixedly installed at the free end of the piston rod 222, the other end of the pressure wheel bracket 223 is provided with an installation hole 225 through which the rotating bearing 224 passes, and the rotating bearing 224 passes through the installation hole 225 and is rotatably connected with the pressure wheel. This is provided to provide a rolling pressure wheel.

The present embodiment provides a combination of a heating device 1 and a pressing device 2 to jointly complete the heating and pressing of the workpiece, and the heating device may be independent or disposed on the pressing device.

Example two

As shown in fig. 1, the present embodiment is similar to the embodiment except that the heating apparatus 1 includes a heater 11, the controller includes a first controller for controlling the heater 11, a temperature detector 13 is further provided on the heater 11, the heater 11 is mounted on a heater fixing plate, and the heater is located at a position in the middle of or adjacent to the pressing wheel. Wherein, the pressure wheel is a hollow wheel or a solid wheel. The embodiment mainly provides a heating device for heating a heating wheel.

In addition, if the pressure wheel is a hollow wheel, the pressure part is in a rolling structure, the rolling structure is supported and fixed by two sides, the rolling pressure wheel is in a hollow structure, and a heater is arranged in the hollow position of the rolling pressure wheel to heat the rolling wheel. If the pressing wheel is a solid wheel, the heater 11 can be placed beside the pressing wheel for heating.

EXAMPLE III

As shown in fig. 2, this embodiment is a 3D printer, the heating and pressurizing device 3 of the first embodiment of the 3D printer, the 3D printer is provided with a printing laser head 4, and the heating and pressurizing device 3 is fixedly connected with the laser head 4 through a connecting plate 5. This is set to realize the heat and pressure post-processing process following the printing trajectory.

Wherein, 3D printer still is equipped with mobilizable workstation 6, and 6 tops of workstation are all located to laser head 4 and heating pressure device 3. The arrangement is that when the laser head of the printing head and the working platform move relatively, the stress and compactness adjusting device and the working platform do the same relative movement. The 3D printer platform is movable, so the heating and pressurizing device has a follow-up function, the pressurizing component is arranged in a rolling mode, and the rolling body is heated to pressurize a 3D printing area and simultaneously provide a heat preservation effect; thereby the region after 3D printing is heated, kept warm and pressed to be compact.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A heating and pressurizing device is characterized by comprising a heating device (1) for eliminating internal stress and a pressurizing device (2) for improving compactness, wherein a controller for controlling the heating device (1) and the pressurizing device (2) is arranged on the device.

2. The heating and pressurizing device as claimed in claim 1, wherein the heating device (1) comprises a heater (11) and a heater fixing plate (12) for fixing the heater, and the heater (11) is mounted on the heater fixing plate (12).

3. The heating and pressurizing device as claimed in claim 2, wherein the controller comprises a first controller for controlling the heater (11) to reach a set temperature, a temperature detector (13) is further arranged on the heater (11), and the temperature detector (13) is in communication connection with the first controller.

4. The heating and pressurizing device according to claim 1, wherein the pressurizing device (2) comprises a pressurizing structure (21) for pressurizing and a regulator (22) for transmitting force to regulate the working state of the pressurizing structure (21), and the regulator (22) is connected with the pressurizing structure (21).

5. The heating and pressurizing device according to claim 4, wherein the pressurizing structure (21) is a pressurizing wheel, and the regulator (22) is a cylinder.

6. The heating and pressurizing device as claimed in claim 5, wherein the cylinder comprises a cylinder body (221) and a piston rod (222), the piston rod (222) is movably connected with the cylinder body (221), and the pressurizing wheel is mounted at the free end of the piston rod (222); the controller comprises a second controller arranged on the air cylinder and used for adjusting the working state of the piston rod (222).

7. The heating and pressurizing device as claimed in claim 6, wherein the pressurizing wheel is connected with the free end of the piston rod (222) through a rotating structure, the rotating structure comprises a pressure wheel bracket (223) and a rotating bearing (224), one end of the pressure wheel bracket (223) is fixedly mounted on the free end of the piston rod (222), the other end of the pressure wheel bracket is provided with a mounting hole (225) through which the rotating bearing (224) passes, and the rotating bearing (224) passes through the mounting hole (225) and is rotatably connected with the pressurizing wheel.

8. The heating and pressurizing device as claimed in any one of claims 4 to 7, wherein the heating device (1) comprises a heater (11), a temperature detector (13) is further arranged on the heater (11), the heater (11) is controlled by a first controller to reach a required temperature, and the heater (11) is arranged on or adjacent to a middle position of the pressurizing wheel.

9. 3D printer, characterized in that, the 3D printer includes the heating and pressurizing device (3) of any one of claims 1 to 8, the 3D printer is provided with a printing laser head (4), and the heating and pressurizing device (3) for adjusting stress and compactness is fixedly connected with the laser head (4) through a connecting plate (5).

10. 3D printer according to claim 9, characterized in that the 3D printer is also provided with a movable table (6), the laser head (4) and the heating and pressurizing means (3) being both arranged above the table (6).

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