Multi-resin tank leveling device for multi-material photocuring 3D printing

Abstract

The utility model discloses a multi-resin-tank leveling device for multi-material photocuring 3D printing. The multi-resin-tank leveling device comprises a fixing plate and a plurality of resin tanks, the leveling plate is used for bearing a plurality of resin tanks, is positioned above the fixing plate and is connected to the fixing plate through a flexible connecting piece; and the adjusting part is movably connected with the leveling plate and is used for adjusting the pitching of the leveling plate relative to the fixed plate so as to realize the horizontal adjustment of the leveling plate.

Description

Technical Field

[0001] The utility model relates to a multi-resin tank leveling device for multi-material light-curing 3D printing, belonging to the technical field of 3D printing. Background Art

[0002] In the traditional single-material light-curing 3D printing process, ultraviolet light is selectively injected into the photosensitive resin in the resin tank through the light source for selective curing, and then stacked layer by layer to form. Depending on the position of the light source, the form of light-curing 3D printing can be divided into "bottom-up" and "top-down". The realization of multi-material light-curing 3D printing is also based on these two forms. Multi-material printing is achieved by adding resin tanks, and switching to another material after printing one material.

[0003] Since the bottom planes of all resin tanks are on the focal plane of the light source, the resin holding platform needs to completely overlap with the focal plane. In the prior art, most of the methods of leveling each resin tank individually, or even not leveling at all, ultimately make the printing quality uneven, time-consuming and labor-intensive. Utility Model Content

[0004] The main purpose of the utility model is to provide a multi-resin tank leveling device for multi-material light-curing 3D printing, so as to solve the technical problem of uneven printing quality caused by the non-uniform leveling of multiple resin tanks in the existing multi-material light-curing 3D printing technology.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes the following technical solutions:

[0006] A multi-resin tank leveling device for multi-material photocuring 3D printing comprises: a fixed plate; an adjustment plate for carrying multiple resin tanks, located above the fixed plate and connected to the fixed plate via a flexible connector; and an adjusting member, movably connected to the adjustment plate, for adjusting the pitch of the adjustment plate relative to the fixed plate to achieve horizontal adjustment of the adjustment plate.

[0007] Furthermore, the movable connection between the adjusting member and the adjusting plate is configured to enable longitudinal relative movement of the adjusting member and the adjusting plate, and pitch adjustment of the adjusting plate is achieved through the longitudinal relative movement.

[0008] Furthermore, the adjusting plate is provided with a through hole, and the adjusting member is installed in the through hole to realize a movable connection with the adjusting plate, and the adjusting member can move axially in the through hole; the flexible connecting member is an elastic connecting member, and is always in a stretched state; when the adjusting member moves toward the fixed plate and generates a resisting force on the fixed plate, the adjusting plate moves away from the fixed plate and rises; when the adjusting member moves away from the fixed plate and separates from the fixed plate, the adjusting plate moves closer to the fixed plate and falls down under the pulling force of the elastic connecting member.

[0009] Furthermore, the adjusting member is a screw sunk into the through hole, and the inner wall of the through hole is provided with a thread matching the screw.

[0010] Furthermore, the elastic connecting member includes a tension spring and a tension pin, and two ends of the tension spring are respectively connected to the fixing plate and the adjusting plate through the tension pin.

[0011] Furthermore, the length of the screw is smaller than the length of the through hole.

[0012] Furthermore, at least three adjusting members are included and distributed at different positions of the adjusting plate; and the flexible connecting member is respectively provided on the side of each adjusting member.

[0013] Furthermore, four adjusting members are included and distributed at four corners of the leveling plate, wherein three adjusting members are used to adjust the level of the leveling plate, and the remaining adjusting member is used to perform deviation compensation adjustment after the three adjusting members complete the leveling of the leveling plate.

[0014] Furthermore, the flexible connecting members beside each adjusting member are one group or more than two groups, and the more than two groups of flexible connecting members are located on the same side or both sides of the adjusting member.

[0015] Compared with the prior art, the beneficial effects of the present invention are embodied in that the multi-resin tank leveling device provided by the aforementioned technical scheme of the present invention can level multiple resin tanks at the same time, ensuring that the bottom surfaces of all resin tanks always coincide with the formed focal plane, with a fast leveling speed, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a multi-resin tank leveling device for multi-material light-curing 3D printing according to an embodiment of the utility model.

[0017] Figure 2 yes Figure 1 Schematic diagram of the leveling components in the multi-resin tank leveling device shown.

[0018] Figure 3It is an expanded schematic diagram of a multi-resin tank leveling device for multi-material light-curing 3D printing according to an embodiment of the utility model.

[0019] Explanation of the reference numerals: 1-fixed plate, 2-adjusting plate, 3-flexible connector, 4-adjusting member, 5-resin tank, 6-fixing screw, 21-through hole, 31-tension spring, 32-pull pin. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to the accompanying drawings and in combination with specific implementation methods and examples. The purpose of providing the examples is only for illustration and not for any limitation. In addition, the spatial orientation words used in the description of the technical solution of the present invention are for the convenience of describing the relative position relationship between the components of the product, and do not mean that the product has only the orientation shown in the figure. In actual use, as the orientation of the product changes, the spatial orientation words used to describe the relative position relationship between the components should also change adaptively.

[0021] Please refer to Figure 1 , an embodiment of the utility model provides a multi-resin tank leveling device for multi-material photocurable 3D printing (hereinafter referred to as "device"), the device includes a fixed plate 1, an adjustment plate 2 and a leveling assembly, the leveling assembly includes a flexible connector 3 and an adjustment member 4; the adjustment plate 2 is used to carry a resin tank 5, and the resin tank 5 can be fixed to the adjustment plate 2 by a fixing screw 6; the adjustment plate 2 is located above the fixed plate 1 and is connected to the fixed plate 1 by a flexible connector 3, and the flexible connector 3 ensures that the relative distance between the fixed plate 1 and the adjustment plate 2 is adjustable; the adjustment member 4 is movably connected to the adjustment plate 2, and is used to adjust the pitch of the adjustment plate 2 relative to the fixed plate 1, so as to achieve horizontal adjustment of the adjustment plate 2, thereby achieving leveling of the resin tanks on the adjustment plate 2. Therefore, by expanding the size of the adjustment plate and the fixed plate and the number of resin tanks, it is possible to achieve simultaneous leveling of multiple resin tanks, which saves time and effort and can ensure high-quality printing of multi-material photocurable 3D printing. For example, Figure 1 In the embodiment shown, two resin tanks 5 are carried on the leveling plate 2, and this embodiment can realize the leveling of the two resin tanks at the same time; Figure 3 By increasing the length of the fixing plate 1 and the leveling plate 2, as well as the number of resin tanks 5, it is possible to achieve simultaneous leveling of multiple resin tanks.

[0022] In some specific embodiments, this leveling adopts a three-point adjustment and positioning method. Specifically, there are at least three adjustment members 4, which are distributed at different positions of the leveling plate 2; at the same time, a flexible connection member 3 is provided on the side of each adjustment member 4. The horizontal position of the leveling plate 2 is positioned by adjusting the three adjustment members 4. For example, Figure 1 and Figure 3In the embodiment shown, four adjusting members 4 are used, which are respectively installed at the four corners of the square leveling plate 2, and each adjusting member 4 has a flexible connecting member 3 on its side. When leveling, three of the adjusting members 4 are selected for adjustment to locate the horizontal position of the leveling plate 2; and the remaining one can be used for fine adjustment to perform deviation compensation adjustment.

[0023] In some embodiments, the movable connection between the adjusting member 4 and the adjusting plate 2 is configured to enable the adjusting member 4 and the adjusting plate 2 to move relative to each other longitudinally, and the pitch adjustment of the adjusting plate 2 is achieved through the longitudinal relative movement. Figure 2 The adjusting plate 2 is provided with a through hole 21, and the adjusting member 4 is installed in the through hole 21 to realize a movable connection with the adjusting plate 2, and the adjusting member 4 can move axially in the through hole 21; the flexible connecting member 3 is an elastic connecting member, and the elastic connecting member is always in a stretched state. Specifically, when the adjusting member 4 moves toward the fixed plate 1 and exerts a resisting force on the fixed plate, the adjusting plate 2 moves away from the fixed plate 1 and rises; and when the adjusting member 4 moves away from the fixed plate 1 and separates from the fixed plate, the adjusting plate 2 moves closer to the fixed plate 1 and lowers under the tensile force of the elastic connecting member.

[0024] In some specific embodiments, the adjusting member 4 is a screw, and accordingly, the inner wall of the through hole 21 has a thread matching the screw, preferably, the thread is a precision fine pitch thread, and the screw as the adjusting member can be installed in the through hole 21 through a threaded connection; the elastic connecting member includes a tension spring 31 and a pull pin 32, and the two ends of the tension spring 31 are respectively connected to the fixed plate and the adjustment plate through the pull pin 32, and the tension spring is always in a stretched state and has a retracting elastic restoring force. More preferably, the length of the screw does not exceed the length of the through hole, that is, the screw is sunk in the through hole.

[0025] In the initial state of the device, the adjustment plate 2 and the resin tank 5 thereon are both in the correct horizontal position, that is, the bottom surface of the resin tank coincides with the molding focal plane (that is, the upper surface of the adjustment plate coincides with the focal plane). At this time, the lower end of the screw as the adjustment member just contacts the fixed plate without pressure, and the screw is in the initial position. When it is detected that the resin tank is not in the correct horizontal position, leveling is required. The principle of leveling is: when a knob of a screw is turned to move the screw downward (toward the fixed plate), the lower end of the screw will press against the fixed plate, so that the corner where the screw is located is lifted (away from the fixed plate); conversely, when a knob of a screw is turned to move it upward so that the lower end of the screw is no longer in contact with the fixed plate, the corner where the screw is located will drop (closer to the fixed plate) under the tension of the tension spring. In this way, pitch adjustment is achieved, and the horizontal position of the adjustment plate is positioned by adjusting the screws at the three corner positions.

[0026] It should be understood that the flexible connecting members beside each adjusting member 4 can be a group, or as Figure 2 The two groups shown in the figure may also be multiple groups, as long as they can provide sufficient tension between the fixed plate 1 and the adjusting plate 2; when there are more than two groups, they can be located on the same side of the adjusting member or on both sides, as long as they are as close to the adjusting member as possible. In addition, the utility model does not limit the specific type of elastic connecting member, and in addition to using tension springs, other types of elastic members can also be used.

[0027] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A multi-resin tank leveling device for multi-material photocuring 3D printing, characterized in that: include: Fixed plate (1); An adjustment plate (2) for carrying multiple resin tanks, located above the fixed plate and connected to the fixed plate via a flexible connector (3); as well as An adjusting member (4) is movably connected to the adjusting plate and is used to adjust the pitch of the adjusting plate relative to the fixed plate to achieve horizontal adjustment of the adjusting plate.

2. The multi-resin tank leveling device according to claim 1, characterized in that: The movable connection between the adjusting member and the adjusting plate is configured to enable the adjusting member and the adjusting plate to undergo longitudinal relative movement, and the pitch adjustment of the adjusting plate is achieved through the longitudinal relative movement.

3. The multi-resin tank leveling device according to claim 2, characterized in that: The adjusting plate is provided with a through hole, the adjusting member is installed in the through hole to realize a movable connection with the adjusting plate, and the adjusting member can move axially in the through hole; the flexible connecting member is an elastic connecting member and is always in a stretched state; When the adjusting member moves toward the fixing plate and generates a resisting force on the fixing plate, the adjusting plate moves away from the fixing plate and tilts upward; When the adjusting member moves away from the fixing plate and is separated from the fixing plate, the adjusting plate moves downward toward the fixing plate under the pulling force of the elastic connecting member.

4. The multi-resin tank leveling device according to claim 3, characterized in that: The adjusting member is a screw sunk into the through hole, and the inner wall of the through hole is provided with a thread matching the screw.

5. The multi-resin tank leveling device according to claim 3, characterized in that: The elastic connecting member comprises a tension spring and a tension pin, and two ends of the tension spring are respectively connected to the fixing plate and the adjusting plate through the tension pin.

6. The multi-resin tank leveling device according to claim 4, characterized in that: The length of the screw is smaller than the length of the through hole.

7. The multi-resin tank leveling device according to claim 1, characterized in that: It comprises at least three adjusting members distributed at different positions of the adjusting plate; and the flexible connecting member is respectively arranged on the side of each adjusting member.

8. The multi-resin tank leveling device according to claim 7, characterized in that: It comprises four adjusting members distributed at four corners of the leveling plate, wherein three adjusting members are used to adjust the level of the leveling plate, and the remaining adjusting member is used to perform deviation compensation adjustment after the three adjusting members have completed the leveling of the leveling plate.

9. The multi-resin tank leveling device according to claim 7, characterized in that: The flexible connecting members beside each adjusting member are one group or more than two groups, and the more than two groups of flexible connecting members are located on the same side or both sides of the adjusting member.

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