Detection device and 3D printer

Abstract

According to the detection device and the 3D printer, resin in a trough is detected mainly by arranging the detection device independent of the trough, and a movable rocker arm is arranged, so that the trough can move freely, connection and disassembly of the detection device are not needed, the original structure of the trough is not damaged, and the trough is convenient to clean. According to the main technical scheme, the detection device comprises a base used for being connected with a base of the 3D printer; the rocker arm assembly is rotationally connected with the base, the rocker arm assembly comprises a first position and a second position, and the rocker arm assembly can move between the first position and the second position; the probe assembly is arranged on the rocker arm assembly and used for making contact with printing resin. The device is mainly used for detecting the printing resin.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a detection device and a 3D printer. Background Art

[0002] A 3D printer is a machine that uses cumulative manufacturing technology to rapidly shape products. In common light-curing 3D printers, the material tank is filled with resin and placed on the printer's light source. The resin in the material tank is cured layer by layer to achieve three-dimensional printing. During the printing process, the resin in the material tank is constantly reduced, and there cannot be enough resin in the material tank for continuous printing. When the resin in the material tank is insufficient and not replenished in time, it will cause printing failure due to material shortage.

[0003] A common method for detecting the resin in a material tank is to fix a monitoring device on the material tank. For example, the patent with publication number CN113324618A provides a liquid level detection circuit, device and method, wherein the probe is fixed to a clamping and fixing structure, and the clamping and fixing structure includes a relaxed state and a clamped state. When the liquid level receiving body needs to be assembled, the outer wall of the liquid level receiving body is abutted against the adjustment arm and the adjustment arm is pressed toward the center of the clamping and fixing structure, and the clamping and fixing structure is adjusted to the clamped state. When the liquid level receiving body needs to be removed, the clamping and fixing structure is adjusted to the relaxed state, resulting in the need to disassemble and assemble the monitoring device when replacing the material tank, which makes it inconvenient to pick up and move the material tank. Another example is the patent with publication number CN205929452U, which provides a glue supply system for a light-curing 3D printer, including a photosensitive resin pool, and a monitoring device for monitoring the liquid level is provided on the inner side of the peripheral wall of the photosensitive resin pool. The control device can control the supply of photosensitive resin to the photosensitive resin pool according to the monitoring result of the first monitoring device. And the patent with patent number CN105619648A provides an automatic liquid supply equipment, the level sensing device is a floating liquid level sensing device, which includes a float. The liquid level sensing device can be set in the container. The liquid level sensing device senses the liquid level height of the liquid raw material in the accommodating space according to the floating height position of the float. The monitoring device is fixed on the inner wall of the material tank. The monitoring device and the fixed position of the material tank are prone to resin accumulation, which makes it difficult to clean the material tank and the detection accuracy of the monitoring device will also be affected.

[0004] Therefore, how to solve the problem of inconvenience in moving the material tank and resin accumulation caused by fixing the monitoring device on the material tank has become a demand of the existing technology. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides a detection device and a 3D printer, which are mainly used to solve the problem that the monitoring device is fixed to the material tank, resulting in inconvenience in moving the material tank and resin accumulation.

[0006] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:

[0007] On the one hand, the utility model provides a detection device, which is applied to a 3D printer, and the detection device includes:

[0008] A base (100) for connecting to a base of a 3D printer;

[0009] A rocker arm assembly (200), the rocker arm assembly (200) is rotatably connected to the base (100), the rocker arm assembly (200) comprises a first position and a second position, and the rocker arm assembly (200) can move between the first position and the second position;

[0010] The probe assembly (300) is arranged on the rocker arm assembly (200) and is used for contacting with the printing resin.

[0011] The detection device further comprises a driving mechanism (400), the driving mechanism (400) is connected to the base (100), and the rocker arm assembly (200) is connected to the driving mechanism (400);

[0012] The driving mechanism (400) is used to drive the rocker arm assembly (200) to move relative to the base (100) so that the rocker arm assembly (200) is located at a first position or a second position.

[0013] Wherein, the driving mechanism (400) comprises a fixing component (410), a power component (420) and a swinging component (430);

[0014] The base (100) comprises an inner cavity, a movable opening (111) is provided on the base (100), a fixed component (410) and a power component (420) are located in the inner cavity, the fixed component (410) is connected to the base (100), the power component (420) is connected to the fixed component (410), the swing component (430) is movably connected to the movable opening (111), one end of the swing component (430) is connected to the output end of the power component (420), and the other end of the swing component (430) is connected to the rocker arm component (200);

[0015] The power member (420) is used to drive the swing assembly (430) to move along the movable opening (111) so that the rocker arm assembly (200) is located at the first position or the second position.

[0016] The power member (420) includes a steering gear, the swing assembly (430) includes a swing plate (431) and two swing arms (432) connected to both ends of the swing plate (431), the two swing arms (432) are respectively connected to the rotating shaft (421) on both sides of the steering gear, the number of the movable openings (111) is two, the two swing arms (432) are respectively movably connected to the two movable openings (111), and the swing plate (431) is used to connect to the rocker arm assembly (200);

[0017] Alternatively, the driving mechanism (400) further comprises a gasket (440), the gasket (440) being connected to the output end of the power member (420), and the swing assembly (430) being connected to the gasket (440).

[0018] The base (100) comprises a base shell (110) and a base bottom plate (120), the base shell (110) and the base bottom plate (120) enclose an inner cavity, the base bottom plate (120) is used to be connected to the base, and a connecting column (130) is arranged on the base bottom plate (120);

[0019] The fixing assembly (410) comprises a connecting plate (411) and a connecting frame (412), wherein the connecting plate (411) is connected to the connecting column (130), the connecting frame (412) is connected to the connecting plate (411), and the connecting frame (412) is connected to the power member (420) so as to fix the power member (420) on the base bottom plate (120);

[0020] An accommodation space is provided between the connecting plate (411) and the base bottom plate (120), and the accommodation space is used to accommodate the main board (422), and the main board (422) is electrically connected to the power component (420).

[0021] The detection device further comprises a feeding assembly (500), the feeding assembly (500) comprising at least one feeding pipe (510), the feeding pipe (510) being connected to the rocker arm assembly (200), one end of the feeding pipe (510) being used to face the material trough of the 3D printer and to feed the material trough, and the other end of the feeding pipe (510) being used to connect to the feeding device of the 3D printer.

[0022] Wherein, a connecting ring (211) is provided on the rocker arm assembly (200), and the connecting ring (211) is sleeved on the outer circumference of the feed pipe (510), and a gap is provided between the connecting ring (211) and the feed pipe (510).

[0023] The detection device further comprises a temperature detection component (600) for detecting the temperature of the resin;

[0024] The temperature detection component (600) is arranged on the rocker arm component (200), and the temperature detection component (600) is arranged opposite to the printing resin;

[0025] Alternatively, the rocker arm assembly (200) includes a rocker arm housing (210) and a rocker arm base plate (220), wherein the rocker arm housing (210) and the rocker arm base plate (220) are connected to form a rocker arm cavity, a temperature detection opening (221) is provided on the rocker arm base plate (220), and the temperature detection assembly (600) is disposed in the rocker arm cavity, and the temperature detection assembly (600) is opposite to the temperature detection opening (221).

[0026] Wherein, the detection device further comprises a trough detection component (700) for detecting the position of the trough;

[0027] The trough detection component (700) is arranged on a side of the base (100) opposite to the trough;

[0028] Alternatively, the material trough detection component (700) includes a connecting seat component (710) and a detector (720), the base (100) includes an inner cavity, and the base (100) further includes a position detection opening (112), the position detection opening (112) is located on the side of the base (100) opposite to the material trough, the connecting seat component (710) and the detector (720) are both located in the inner cavity, the connecting seat component (710) is connected to the base (100), the detector (720) is connected to the connecting seat component (710), and the probe (721) of the detector (720) protrudes from the position detection opening (112).

[0029] On the other hand, the utility model also provides a 3D printer, comprising any of the above detection devices, as well as a base and a material trough (800);

[0030] The base comprises a top plate (900), the base (100) is connected to the top plate (900), the material trough (800) is arranged on the top plate (900), when the rocker arm assembly (200) is in a first position, the probe assembly (300) is in contact with the printing resin, and when the rocker arm assembly (200) is in a second position, the probe assembly (300) is separated from the printing resin.

[0031] The detection device and 3D printer proposed in the embodiment of the utility model mainly detect the resin in the material trough by setting a detection device independent of the material trough, and setting a movable rocker arm so that the material trough can be moved freely, without the need to connect and disassemble the detection device, and without destroying the original structure of the material trough, and the material trough is easy to clean. In the prior art, the monitoring device is fixed on the material trough, and when the material trough is replaced, the monitoring device needs to be disassembled and assembled, which makes it inconvenient to pick up and move the material trough, and the resin is easily accumulated at the fixed position of the monitoring device and the material trough, which makes it difficult to clean the material trough, and the detection accuracy of the monitoring device will also be affected. Compared with the prior art, in the present application document, when detecting the resin in the material tank, the rocker arm assembly is controlled to rotate to the first position relative to the base, and the probe assembly is inserted into the receiving slot of the material tank. The probe assembly is used to detect the remaining amount of resin. When the material tank needs to be removed, the rocker arm assembly is controlled to rotate to the second position relative to the base, and the probe assembly is removed from the receiving slot. The material tank can be moved freely, so that the setting of the detection device will not affect the placement and removal of the material tank, and will not damage the original structure of the material tank. It can be used for material tanks of any structure and has universal applicability. The probe assembly is easy to clean after being removed from the receiving slot, avoiding the problem of resin accumulation between the probe assembly and the material tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of a 3D printer provided by an embodiment of the utility model when the rocker arm assembly is in a first position;

[0033] Figure 2 A schematic diagram of the structure of a 3D printer provided by an embodiment of the utility model when the rocker arm assembly is in the second position;

[0034] Figure 3 A schematic diagram of the structure of a detection device provided by an embodiment of the utility model when the rocker arm assembly is in a first position;

[0035] Figure 4 A schematic diagram of a partial explosion structure of a detection device provided by an embodiment of the utility model;

[0036] Figure 5 A schematic diagram of a partial explosion structure of another detection device provided by an embodiment of the utility model;

[0037] Figure 6 A schematic diagram of the explosion structure of a base and a driving mechanism in a detection device provided by an embodiment of the utility model at a first viewing angle;

[0038] Figure 7 A schematic diagram of an explosion structure of a base and a driving mechanism in a detection device provided by an embodiment of the utility model at a second viewing angle;

[0039] Figure 8A schematic diagram of the exploded structure of a rocker arm assembly, a probe assembly and a temperature detection assembly in a detection device provided by an embodiment of the utility model at a first viewing angle;

[0040] Fig. 9 A schematic diagram of the exploded structure of a rocker arm assembly, a probe assembly and a temperature detection assembly in a detection device provided by an embodiment of the utility model at a second viewing angle;

[0041] Fig.10 A schematic diagram of the exploded structure of a trough detection component in a detection device provided by an embodiment of the utility model at a first viewing angle;

[0042] Fig.11 A schematic diagram of the explosion structure of a trough detection component in a detection device provided in an embodiment of the utility model at a second viewing angle. DETAILED DESCRIPTION

[0043] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the present invention, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the detection device proposed according to the present invention in combination with the accompanying drawings and preferred embodiments.

[0044] On the one hand, if Figure 1-Figure 2 As shown, the embodiment of the utility model provides a detection device, which is applied to a 3D printer, and the detection device includes:

[0045] A base (100) for connecting to a base of a 3D printer;

[0046] A rocker arm assembly (200), the rocker arm assembly (200) is rotatably connected to the base (100), the rocker arm assembly (200) comprises a first position and a second position, and the rocker arm assembly (200) can move between the first position and the second position;

[0047] The probe assembly (300) is arranged on the rocker arm assembly (200) and is used for contacting with the printing resin.

[0048] The base of a 3D printer generally includes a receiving cavity and a top plate (900) located at the top, the top plate (900) being a support plate for the material trough (800), an opening being provided on the top plate (900), a light-transmitting screen being provided at the opening, the material trough (800) being placed on the top plate (900), and a release film of the material trough (800) being attached to the light-transmitting screen. The receiving cavity is used to receive a light-emitting component, the light of the light-emitting component being projected onto the light-transmitting screen, and passing through the light-transmitting screen and the release film, so that the printing resin is solidified and formed, and three-dimensional printing is realized. The base (100) can be connected to multiple positions of the base, such as being connected to the top plate (900) or to the side wall of the base. The rocker arm assembly (200) and the base (100) can be directly connected, such as the rocker arm assembly (200) and the base (100) are rotatably connected through a damping shaft, and the rocker arm assembly (200) can be manually rotated to make the rocker arm assembly (200) be in the first position or the second position. Alternatively, in some embodiments, the rocker arm assembly (200) and the base (100) are indirectly connected, such as in an embodiment provided with a driving mechanism (400), the rocker arm assembly (200) is connected to the driving mechanism (400), the base (100) is a cavity structure for accommodating the driving mechanism (400), and the driving mechanism (400) drives the rocker arm assembly (200) to move, so that the rocker arm assembly (200) is in the first position or the second position. The first position and the second position are the detection position and the idle position of the probe assembly (300), respectively, and will be described in detail below in conjunction with the structure of a probe assembly (300).

[0049] The probe assembly (300) can be a variety of detection devices, which can be contact detection or non-contact detection. In one embodiment, the probe assembly (300) includes a probe main board (310) and two probes (320). The probe main board (310) is connected to the rocker assembly (200). The probes (320) can be conductors with long rod-like structures. One end of the probe (320) is connected to the probe main board (310), and the other end extends and hangs in a direction away from the rocker assembly (200). During the printing process, Figure 1As shown, the material tank (800) is placed on the top plate (900), and when the rocker arm assembly (200) is adjusted to the first position, the two probes (320) extend toward the receiving groove of the material tank (800). When the printing resin is sufficient, the two probes (320) contact the printing resin and are electrically connected through the printing resin. When the printing resin is insufficient, the two probes (320) will be separated from the printing resin and the two probes (320) are disconnected. The signal of whether the two probes (320) are turned on or not can be obtained through the probe mainboard (310), and the probe mainboard (310) is connected to the main controller of the 3D printer, thereby realizing the judgment of the remaining amount of printing resin based on whether the two probes (320) are turned on or not. It is understandable that the functions of the probe main board (310) can be multiple, such as only used to transmit the signal of the probe (320), or to perform signal processing according to whether the probe (320) is turned on or not. The specific functions of the probe main board (310) are not limited here. The purpose is to judge the state change of the probe (320) to obtain the change of the remaining amount of printing resin. The probe main board (310) is within the protection scope of this technical solution. When printing is completed or the material tank (800) needs to be removed, Figure 2 As shown, the rocker arm assembly (200) is adjusted to the second position, the two probes (320) are moved out of the receiving groove of the material trough (800), and the rocker arm assembly (200) and the two probes (320) are away from the material trough (800), so that the movement of the material trough (800) is not blocked.

[0050] In a more specific embodiment, the rocker arm assembly (200) is in a long strip structure, including a first end and a second end facing each other, the first end of the rocker arm assembly (200) is rotatably connected to the base (100), and the two probes (320) are arranged near the second end of the rocker arm assembly (200). Taking the actual use direction of the 3D printer as an example, Figure 1 As shown, when the rocker arm assembly (200) is in the first position, the rocker arm assembly (200) is horizontally arranged, and the probe (320) extends in the vertical direction, as shown in FIG. Figure 2 As shown, when the rocker arm assembly (200) is in the second position, the rocker arm assembly (200) is tilted, the probe (320) extends in an inclined downward direction, and the rotation angle of the rocker arm assembly (200) from the first position to the second position can be greater than or equal to 45 degrees and less than or equal to 90 degrees.

[0051] The detection device and 3D printer proposed in the embodiment of the utility model mainly detect the resin in the material trough by setting a detection device independent of the material trough, and setting a movable rocker arm so that the material trough can be moved freely, without the need to connect and disassemble the detection device, and without destroying the original structure of the material trough, and the material trough is easy to clean. In the prior art, the monitoring device is fixed on the material trough, and when the material trough is replaced, the monitoring device needs to be disassembled and assembled, which makes it inconvenient to pick up and move the material trough, and the resin is easily accumulated at the fixed position of the monitoring device and the material trough, which makes it difficult to clean the material trough, and the detection accuracy of the monitoring device will also be affected. Compared with the prior art, in the present application document, when detecting the resin in the material tank, the rocker arm assembly is controlled to rotate to the first position relative to the base, and the probe assembly is inserted into the receiving slot of the material tank. The probe assembly is used to detect the remaining amount of resin. When the material tank needs to be removed, the rocker arm assembly is controlled to rotate to the second position relative to the base, and the probe assembly is removed from the receiving slot. The material tank can be moved freely, so that the setting of the detection device will not affect the placement and removal of the material tank, and will not damage the original structure of the material tank. It can be used for material tanks of any structure and has universal applicability. The probe assembly is easy to clean after being removed from the receiving slot, avoiding the problem of resin accumulation between the probe assembly and the material tank.

[0052] In one embodiment, if Figure 5-7 As shown, the detection device further comprises a driving mechanism (400), the driving mechanism (400) is connected to the base (100), and the rocker arm assembly (200) is connected to the driving mechanism (400). The driving mechanism (400) is used to drive the rocker arm assembly (200) to move relative to the base (100) so that the rocker arm assembly (200) is located at the first position or the second position.

[0053] The position of the rocker arm assembly (200) is adjusted by the driving mechanism (400) to realize automatic rotation of the rocker arm assembly (200). For example, when the material trough detection assembly (700) is combined, when it is detected that the material trough (800) is placed on the top plate (900), the position of the rocker arm assembly (200) is automatically adjusted to move the rocker arm assembly (200) from the second position to the first position; or, when it is detected that the material trough (800) is removed, the rocker arm assembly (200) is moved from the first position to the second position.

[0054] The driving mechanism (400) can be arranged at multiple positions of the base (100) according to different structures of the base (100). In one embodiment, the driving mechanism (400) includes a fixed component (410), a power piece (420) and a swing component (430). The base (100) includes an inner cavity, and a movable opening (111) is arranged on the base (100). The fixed component (410) and the power piece (420) are located in the inner cavity. The fixed component (410) is connected to the base (100), and the power piece (420) is respectively connected to the fixed component (410). The swing component (430) is movably connected to the movable opening (111), one end of the swing component (430) is connected to the output end of the power piece (420), and the other end of the swing component (430) is connected to the rocker arm component (200). The power member (420) is used to drive the swing assembly (430) to move along the movable opening (111) so that the rocker arm assembly (200) is located at the first position or the second position.

[0055] The base (100) includes a base shell (110) and a base bottom plate (120). The base shell (110) is a cavity structure. The bottom end of the base shell (110) is provided with an opening. The base bottom plate (120) covers the opening. The base shell (110) and the base bottom plate (120) enclose an inner cavity. The base bottom plate (120) is also connected to the top plate (900) to achieve the fixation of the base shell (110). The top end of the base shell (110) is a semi-cylindrical structure, including an arc-shaped surface. The movable opening (111) is an arc-shaped long strip opening opened on the arc-shaped surface, extending in the moving direction of the swing component (430). The fixed component (410) and the power member (420) are located in the inner cavity, one end of the swing component (430) is connected to the power member (420), and the other end extends out of the inner cavity through the movable opening (111) and is connected to the rocker arm component (200). The swing component (430) and the movable opening (111) can be in sliding contact, and the movable opening (111) plays a role in limiting the swing component (430) to prevent the swing component (430) from being unstable and shaking, or the movable opening (111) and the swing component (430) do not contact each other, and the movable opening (111) is only a channel for the swing component (430) to extend.

[0056] In one embodiment, if Figure 3-7 As shown, the power member (420) includes a steering gear, and the swing assembly (430) includes a swing plate (431) and two swing arms (432) connected to both ends of the swing plate (431), the two swing arms (432) are respectively connected to the rotating shaft (421) on both sides of the steering gear, the number of the movable openings (111) is two, the two swing arms (432) are respectively movably connected to the two movable openings (111), and the swing plate (431) is used to connect with the rocker arm assembly (200).

[0057] The servo includes two side shafts (421). The swing plate (431) is vertically connected to the two swing arms (432), so that the swing plate (431) and the two swing arms (432) enclose an approximately U-shaped frame structure. In one embodiment, the drive mechanism (400) further includes a gasket (440), the gasket (440) is a circular gasket, the center of the gasket (440) is connected to the rotating shaft (421) of the servo, and the gasket (440) also includes a plurality of connecting holes arranged around the center point, such as four connecting holes arranged around the center, the four connecting holes are evenly distributed and separated from the center by a distance. One end of the swing arm (432) is connected to the connecting hole of the gasket (440) by bolts, thereby increasing the contact area and connection strength between the swing arm (432) and the gasket, so that the rotation of the rotating shaft (421) can effectively drive the swing arm (432) to swing. The other end of the swing arm (432) extends out of the inner cavity through the movable opening (111), so that the swing plate (431) is located outside the inner cavity. A positioning column is provided on the swing plate (431), and the positioning column is used to extend into the positioning hole of the rocker bottom plate (220) of the rocker assembly (200). The swing plate (431) and the rocker bottom plate (220) of the rocker assembly (200) are connected by bolts to increase the connection strength of the swing plate (431) and the rocker assembly (200) and the convenience of installation. The swing plate (431) cooperates with the swing arm (432) to make the swing assembly (430) more stable and less prone to shaking. It can be understood that the extension length of the movable opening (111) should be sufficient to allow the swing arm (432) to move in the movable opening (111) so that the rocker assembly (200) can switch between the first position and the second position.

[0058] In one embodiment, if Figure 5-7 As shown, the base (100) includes a base shell (110) and a base bottom plate (120), the base shell (110) and the base bottom plate (120) enclose an inner cavity, the base bottom plate (120) is used to connect with the base, and a connecting column (130) is arranged on the base bottom plate (120). The fixing component (410) includes a connecting plate (411) and a connecting frame (412), the connecting plate (411) is connected to the connecting column (130), the connecting frame (412) is connected to the connecting plate (411), and the connecting frame (412) is connected to the power member (420) to fix the power member (420) on the base bottom plate (120). There is a accommodating space between the connecting plate (411) and the base bottom plate (120), and the accommodating space is used to accommodate the main board (422), and the main board (422) is electrically connected to the power member (420).

[0059] The number of connecting columns (130) may be 4. The top of the connecting column (130) is provided with a screw hole. The four corners of the connecting plate (411) are provided with connecting holes. The connecting plate (411) is mounted on the connecting column (130). Bolts are passed through the connecting holes and screwed into the screw holes to connect the connecting plate (411) to the connecting column (130). A storage space is formed between the connecting plate (411) and the base bottom plate (120) to accommodate the main board (422). The main board is connected to the servo and the trough detection component (700) to control the operation of the servo according to the position of the trough (800). The connecting frame (412) is a U-shaped frame. The connecting frame (412) is connected to the connecting plate (411), and the servo is connected to the servo on both sides, so that the position of the servo is more stable and will not shake during the driving process. In some other embodiments, such as Figure 3 and Figure 7 As shown, the base housing (110) further includes a cable opening and an opening cover (113), wherein the cable opening is used for connecting cables, including data transmission cables and power supply cables. The opening cover (113) is used for protecting the cables and restricting the routing direction of the cables.

[0060] In one embodiment, if Figure 3-4 , Figure 8-9 As shown, the detection device further comprises a feeding assembly (500), the feeding assembly (500) comprising at least one feeding pipe (510), the feeding pipe (510) being connected to the rocker arm assembly (200), one end of the feeding pipe (510) being used to face the material trough of the 3D printer, and being used to feed the material trough, and the other end of the feeding pipe (510) being used to connect to the feeding device of the 3D printer.

[0061] The number of the feed pipes (510) may be one or more. For example, the number of the feed pipes (510) is two, and the two feed pipes (510) are connected in parallel to the rocker assembly (200). In one embodiment, the rocker assembly (200) includes a rocker housing (210) and a rocker base plate (220). The rocker housing (210) and the rocker base plate (220) are connected to form a rocker cavity. The rocker housing (210) and the rocker base plate (220) are provided with opposite openings. The feed pipe (510) is connected to the opening of the rocker base plate (220) and is fixed to the rocker base plate (220). The top end of the feed pipe (510) passes through the opening of the rocker housing (210). The top end of the feed pipe (510) is used to connect to the feeding device of the 3D printer, such as Figure 1-2As shown, the feeding device can be connected by a hose (520). The feeding device can be a bottle with an air pump. The extension direction of the feed pipe (510) is consistent with the extension direction of the probe (320). When the rocker arm assembly (200) is in the first position, the feed pipe (510) corresponds to the material tank (800). When it is detected that the remaining amount of printing resin is insufficient, the air pump is started to inflate the material bottle. The printing resin in the material bottle is pressurized to enter the receiving groove of the material tank (800) through the hose (520) and the feed pipe (510), thereby achieving the purpose of adding printing resin. The two feed pipes (510) can be connected to two bottles respectively to provide a sufficient amount of printing resin for printing, and avoid the excessive size of the bottle causing the printer to occupy too much space.

[0062] In one embodiment, a connecting ring (211) is provided on the rocker arm assembly (200), and the connecting ring (211) is sleeved on the outer circumference of the feed pipe (510), and a gap is provided between the connecting ring (211) and the feed pipe (510).

[0063] The connecting ring (211) is arranged at the opening of the rocker arm housing (210). The connecting ring (211) is a cylindrical tube structure. The feed pipe (510) is connected to the connecting ring (211). There is a gap between the feed pipe (510) and the connecting ring (211). The gap may be 2 mm. One end of the hose (520) is sleeved on the feed pipe (510) and is located in the gap. The connecting ring (211) plays a guiding role in connecting the hose (520) and protects the connection position between the feed pipe (510) and the hose (520), thereby preventing the hose (520) from bending and falling off.

[0064] In one embodiment, if Figure 8-9 As shown, the detection device also includes a temperature detection component (600) for detecting the temperature of the printed resin. The temperature detection component (600) is arranged on the rocker assembly (200), and the temperature detection component (600) is arranged opposite to the printed resin. Alternatively, the rocker assembly (200) includes a rocker housing (210) and a rocker base plate (220), the rocker housing (210) and the rocker base plate (220) are connected and enclosed to form a rocker cavity, the rocker base plate (220) is provided with a temperature detection opening (221), the temperature detection component (600) is arranged in the rocker cavity, and the temperature detection component (600) is opposite to the temperature detection opening (221).

[0065] The temperature detection component (600) can use non-contact temperature detection, such as the temperature detection component (600) is an infrared temperature detector. In the embodiment where the rocker arm component (200) includes a rocker arm housing (210) and a rocker arm bottom plate (220), the detection head of the infrared temperature detector is located at the temperature detection opening (221) and is opposite to the material trough (800). In one embodiment, the temperature detection opening (221) is located at one end of the rocker arm component (200) opposite to the swing component (430), so that the position of the temperature detection component (600) is closer to the center of the material trough, that is, the detected temperature value is closer to the temperature of the mold forming position, so that the detection is more accurate.

[0066] like Figure 5 , Figure 8-9 As shown, in an embodiment where the probe assembly (300) includes a probe main board (310) and two probes (320), the probe main board (310) is located in the rocker arm cavity, the rocker arm bottom plate (220) is provided with a probe opening, and the two probes (320) are fixed on the probe main board (310) and extend through the probe opening. The temperature detection assembly (600) is fixed on the probe main board (310). The probe main board (310) also includes an opening that passes through the feed pipe (510). As shown Figure 8-9 As shown, a cable pressing block (222) is also provided on the rocker arm bottom plate (220), and the cable of the probe main plate (310) passes through the channel between the cable pressing block (222) and the rocker arm bottom plate (220), thereby constraining the cable.

[0067] In one embodiment, if Figure 4-5 , Figure 10-11 As shown, the detection device also includes a trough detection component (700) for detecting the position of the trough. The trough detection component (700) is arranged on the side of the base (100) opposite to the trough. Alternatively, the trough detection component (700) includes a connecting seat component (710) and a detector (720), the base (100) includes an inner cavity, the base (100) also includes a position detection opening (112), the position detection opening (112) is located on the side of the base (100) opposite to the trough, the connecting seat component (710) and the detector (720) are both located in the inner cavity, the connecting seat component (710) is connected to the base (100), the detector (720) is connected to the connecting seat component (710), and the probe (721) of the detector (720) protrudes from the position detection opening (112).

[0068] When the material trough (800) is placed on the top plate (900), the material trough (800) and the base (100) are in contact or have a small gap, and the probe (721) of the detector (720) protrudes from the side surface of the base (100) relative to the material trough (800). The material trough (800) contacts the probe (721), thereby causing the detector (720) to generate a detection signal, and then the rocker arm assembly (200) is controlled to move from the second position to the first position according to the detection signal. When the material trough (800) is removed, the detection signal disappears, and the rocker arm assembly (200) is controlled to move from the first position to the second position. The detector (720) can be directly fixed on the base (100), or, in an embodiment in which the base (100) includes a base shell (110) and a base bottom plate (120), and the base shell (110) and the base bottom plate (120) enclose an inner cavity, the probe (721) of the detector (720) extends from the position detection opening (112) to the side wall protruding from the side of the base shell (110) opposite to the material trough (800) to contact the material trough (800), and the base (100) plays a role in protecting the detector (720) and makes the appearance of the base (100) neat.

[0069] On the other hand, the utility model also provides a 3D printer, comprising any of the above detection devices, as well as a base and a material trough (800). The base comprises a top plate (900), the base (100) is connected to the top plate (900), the material trough (800) is arranged on the top plate (900), when the rocker arm assembly (200) is in a first position, the probe assembly (300) is in contact with the printing resin, and when the rocker arm assembly (200) is in a second position, the probe assembly (300) is separated from the printing resin.

[0070] The 3D printer further comprises a guide frame assembly and a printing platform assembly, wherein the guide frame assembly is connected to the top plate (900), and the printing platform assembly is connected to the guide frame assembly, and the guide frame assembly is used to drive the printing platform assembly to approach or move away from the material trough (800). The base (100) is fixed to the top plate (900) by connecting bolts, and the base (100) can be located on a side of the material trough (800) relative to the guide frame assembly, so as to facilitate the picking up of the material trough (800) and make reasonable use of the space of the top plate (900).

[0071] In some other embodiments, by combining the temperature detection function of the above-mentioned embodiments and the design of the feeding structure with some material bottles and containers for storing resin, and designing the following method steps in conjunction with the software, it is possible to ensure that the resin is kept at a constant temperature during the printing process, so that the resin is always in a constant state, thereby improving the printing success rate to a certain extent.

[0072] Step 1. At the beginning of the program, first set the constant temperature of the resin, and then determine whether the intelligent feed switch is turned on. If it is turned on, go to step 3, if it is turned off, go to step 2;

[0073] Step 2: Clear the feed-related flags, enter the idle state, and execute other system applications.

[0074] Step 3. Determine whether the end needs to be fed, if so, go to step 7, if not, go to step 4.

[0075] Step 4. Determine whether the residual material needs to be withdrawn. If not, proceed to step 5. If yes, proceed to step 6.

[0076] Step 5. Enter the silent sleep cycle and check whether the sleep cycle ends. If it ends, go to step 3; if it does not end, go to step 5.

[0077] Step 6. Perform the material withdrawal operation and check whether the withdrawal is completed. If completed, proceed to step 5; if not completed, proceed to step 6.

[0078] Step 7. Execute the feeding operation and determine whether the resin temperature reaches the set temperature value. If yes, proceed to step 8. If not, proceed to resin heating and then proceed to step 7.

[0079] Step 8. Determine whether the feeding timeout has occurred. If yes, proceed to step 9; if not, proceed to step 3.

[0080] Step 9. Determine whether printing is in progress, if so, proceed to step 11, if not, proceed to step 10.

[0081] Step 10. Send a bottle shortage alarm, then go to step 12.

[0082] Step 11. Pause printing and go to step 10.

[0083] Step 12. Enter the material-cutting dormancy cycle and determine whether the material-cutting cycle is over. If it is over, go to step 3; if it is not over, go to step 12.

[0084] On the one hand, the utility model provides a detection device, which is applied to a 3D printer, and the detection device includes:

[0085] A base (100) for connecting to a base of a 3D printer;

[0086] A rocker arm assembly (200), the rocker arm assembly (200) is rotatably connected to the base (100), the rocker arm assembly (200) comprises a first position and a second position, and the rocker arm assembly (200) can move between the first position and the second position;

[0087] The probe assembly (300) is arranged on the rocker arm assembly (200) and is used for contacting with the printing resin.

[0088] The detection device further comprises a driving mechanism (400), the driving mechanism (400) is connected to the base (100), and the rocker arm assembly (200) is connected to the driving mechanism (400);

[0089] The driving mechanism (400) is used to drive the rocker arm assembly (200) to move relative to the base (100) so that the rocker arm assembly (200) is located at a first position or a second position.

[0090] Wherein, the driving mechanism (400) comprises a fixing component (410), a power component (420) and a swinging component (430);

[0091] The base (100) comprises an inner cavity, a movable opening (111) is provided on the base (100), a fixed component (410) and a power component (420) are located in the inner cavity, the fixed component (410) is connected to the base (100), the power component (420) is connected to the fixed component (410), the swing component (430) is movably connected to the movable opening (111), one end of the swing component (430) is connected to the output end of the power component (420), and the other end of the swing component (430) is connected to the rocker arm component (200);

[0092] The power member (420) is used to drive the swing assembly (430) to move along the movable opening (111) so that the rocker arm assembly (200) is located at the first position or the second position.

[0093] The power member (420) includes a steering gear, the swing assembly (430) includes a swing plate (431) and two swing arms (432) connected to both ends of the swing plate (431), the two swing arms (432) are respectively connected to the rotating shaft (421) on both sides of the steering gear, the number of the movable openings (111) is two, the two swing arms (432) are respectively movably connected to the two movable openings (111), and the swing plate (431) is used to connect to the rocker arm assembly (200);

[0094] Alternatively, the driving mechanism (400) further comprises a gasket (440), the gasket (440) being connected to the output end of the power member (420), and the swing assembly (430) being connected to the gasket (440).

[0095] The base (100) comprises a base shell (110) and a base bottom plate (120), the base shell (110) and the base bottom plate (120) enclose an inner cavity, the base bottom plate (120) is used to be connected to the base, and a connecting column (130) is arranged on the base bottom plate (120);

[0096] The fixing assembly (410) comprises a connecting plate (411) and a connecting frame (412), wherein the connecting plate (411) is connected to the connecting column (130), the connecting frame (412) is connected to the connecting plate (411), and the connecting frame (412) is connected to the power member (420) so as to fix the power member (420) on the base bottom plate (120);

[0097] An accommodation space is provided between the connecting plate (411) and the base bottom plate (120), and the accommodation space is used to accommodate the main board (422), and the main board (422) is electrically connected to the power component (420).

[0098] The detection device further comprises a feeding assembly (500), the feeding assembly (500) comprising at least one feeding pipe (510), the feeding pipe (510) being connected to the rocker arm assembly (200), one end of the feeding pipe (510) being used to face the material trough of the 3D printer and to feed the material trough, and the other end of the feeding pipe (510) being used to connect to the feeding device of the 3D printer.

[0099] Wherein, a connecting ring (211) is provided on the rocker arm assembly (200), and the connecting ring (211) is sleeved on the outer circumference of the feed pipe (510), and a gap is provided between the connecting ring (211) and the feed pipe (510).

[0100] The detection device further comprises a temperature detection component (600) for detecting the temperature of the resin;

[0101] The temperature detection component (600) is arranged on the rocker arm component (200), and the temperature detection component (600) is arranged opposite to the printing resin;

[0102] Alternatively, the rocker arm assembly (200) includes a rocker arm housing (210) and a rocker arm base plate (220), wherein the rocker arm housing (210) and the rocker arm base plate (220) are connected to form a rocker arm cavity, a temperature detection opening (221) is provided on the rocker arm base plate (220), and the temperature detection assembly (600) is disposed in the rocker arm cavity, and the temperature detection assembly (600) is opposite to the temperature detection opening (221).

[0103] Wherein, the detection device further comprises a trough detection component (700) for detecting the position of the trough;

[0104] The trough detection component (700) is arranged on a side of the base (100) opposite to the trough;

[0105] Alternatively, the material trough detection component (700) includes a connecting seat component (710) and a detector (720), the base (100) includes an inner cavity, and the base (100) further includes a position detection opening (112), the position detection opening (112) is located on the side of the base (100) opposite to the material trough, the connecting seat component (710) and the detector (720) are both located in the inner cavity, the connecting seat component (710) is connected to the base (100), the detector (720) is connected to the connecting seat component (710), and the probe (721) of the detector (720) protrudes from the position detection opening (112).

[0106] On the other hand, the utility model also provides a 3D printer, comprising any of the above detection devices, as well as a base and a material trough (800);

[0107] The base comprises a top plate (900), the base (100) is connected to the top plate (900), the material trough (800) is arranged on the top plate (900), when the rocker arm assembly (200) is in a first position, the probe assembly (300) is in contact with the printing resin, and when the rocker arm assembly (200) is in a second position, the probe assembly (300) is separated from the printing resin.

[0108] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A detection device, applied to a 3D printer, characterized in that: The detection device comprises: A base (100) used to connect to the base of the 3D printer; A rocker arm assembly (200), the rocker arm assembly (200) being rotatably connected to the base (100), the rocker arm assembly (200) comprising a first position and a second position, and the rocker arm assembly (200) being movable between the first position and the second position; A probe assembly (300) is arranged on the rocker arm assembly (200) and is used for contacting with the printing resin.

2. The detection device according to claim 1, characterized in that: The detection device also includes: A driving mechanism (400), wherein the driving mechanism (400) is connected to the base (100), and the rocker arm assembly (200) is connected to the driving mechanism (400); The driving mechanism (400) is used to drive the rocker arm assembly (200) to move relative to the base (100), so that the rocker arm assembly (200) is located at the first position or the second position.

3. The detection device according to claim 2, characterized in that: The driving mechanism (400) comprises a fixing component (410), a power component (420) and a swinging component (430); The base (100) comprises an inner cavity, a movable opening (111) is provided on the base (100), the fixed component (410) and the power component (420) are located in the inner cavity, the fixed component (410) is connected to the base (100), the power component (420) is connected to the fixed component (410), the swing component (430) is movably connected to the movable opening (111), one end of the swing component (430) is connected to the output end of the power component (420), and the other end of the swing component (430) is connected to the rocker arm component (200); The power member (420) is used to drive the swing assembly (430) to move along the movable opening (111), so that the rocker arm assembly (200) is located at the first position or the second position.

4. The detection device according to claim 3, characterized in that: The power member (420) includes a steering gear, the swing assembly (430) includes a swing plate (431) and two swing arms (432) connected to two ends of the swing plate (431), the two swing arms (432) are respectively connected to the rotating shaft (421) on both sides of the steering gear, the number of the movable openings (111) is two, the two swing arms (432) are respectively movably connected to the two movable openings (111), and the swing plate (431) is connected to the rocker arm assembly (200); Alternatively, the driving mechanism (400) further comprises a gasket (440), wherein the gasket (440) is connected to the output end of the power member (420), and the swing assembly (430) is connected to the gasket (440).

5. The detection device according to claim 3, characterized in that: The base (100) comprises a base shell (110) and a base bottom plate (120), wherein the base shell (110) and the base bottom plate (120) enclose the inner cavity, the base bottom plate (120) is used to be connected to the base, and a connecting column (130) is provided on the base bottom plate (120); The fixing assembly (410) comprises a connecting plate (411) and a connecting frame (412), wherein the connecting plate (411) is connected to the connecting column (130), the connecting frame (412) is connected to the connecting plate (411), and the connecting frame (412) is connected to the power member (420) so as to fix the power member (420) on the base bottom plate (120); An accommodation space is provided between the connection plate (411) and the base bottom plate (120), and the accommodation space is used to accommodate a main board (422), and the main board (422) is electrically connected to the power component (420).

6. The detection device according to claim 1, characterized in that: The detection device also includes: A feed assembly (500), the feed assembly (500) comprising at least one feed pipe (510), the feed pipe (510) being connected to the rocker arm assembly (200), one end of the feed pipe (510) being used to face the material trough of the 3D printer and to feed the material to the material trough, and the other end of the feed pipe (510) being used to connect to the feeding device of the 3D printer.

7. The detection device according to claim 6, characterized in that: The rocker arm assembly (200) is provided with a connecting ring (211), the connecting ring (211) is sleeved on the outer circumference of the feed pipe (510), and a gap is provided between the connecting ring (211) and the feed pipe (510).

8. The detection device according to claim 1, characterized in that: The detection device also includes: A temperature detection component (600) for detecting the temperature of the printing resin; The temperature detection component (600) is arranged on the rocker arm component (200), and the temperature detection component (600) is arranged opposite to the printing resin; Alternatively, the rocker arm assembly (200) comprises a rocker arm housing (210) and a rocker arm base plate (220), wherein the rocker arm housing (210) and the rocker arm base plate (220) are connected to form a rocker arm cavity, a temperature detection opening (221) is provided on the rocker arm base plate (220), and the temperature detection assembly (600) is disposed in the rocker arm cavity, and the temperature detection assembly (600) is opposite to the temperature detection opening (221).

9. The detection device according to claim 1, characterized in that: The detection device also includes: A trough detection component (700), used to detect the position of the trough; The material trough detection component (700) is arranged on a side of the base (100) opposite to the material trough; Alternatively, the material trough detection component (700) includes a connecting seat component (710) and a detector (720), the base (100) includes an inner cavity, and the base (100) further includes a position detection opening (112), the position detection opening (112) is located on a side of the base (100) opposite to the material trough, the connecting seat component (710) and the detector (720) are both located in the inner cavity, the connecting seat component (710) is connected to the base (100), the detector (720) is connected to the connecting seat component (710), and the probe (721) of the detector (720) protrudes from the position detection opening (112).

10. A 3D printer, characterized in that: Comprising a detection device as described in any one of claims 1 to 9 above, as well as a base and a material trough (800); The base comprises a top plate (900), the base (100) is connected to the top plate (900), the material trough (800) is arranged on the top plate (900), when the rocker arm assembly (200) is in the first position, the probe assembly (300) is in contact with the printing resin, and when the rocker arm assembly (200) is in the second position, the probe assembly (300) is separated from the printing resin.

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