3D printer safety door lock device

Abstract

The present invention relates to a three-dimensional printer safety door lock device, which includes an outer shell provided on the inner wall of the opening and closing side of the three-dimensional printer, a guide sleeve fixed on the outer shell and extending forward and backward, a latch assembly slidably connected in the guide sleeve, and a locking assembly provided on the rear side of the latch assembly. The purpose of the present invention is to provide a safe, intelligent and easy-to-control three-dimensional printer safety door lock device. The advantages of the present invention are: the present invention adopts a two-press trigger design, when the first press is made, the soft magnetic suction head is energized to firmly suck the door, and when the second press is made, the soft magnetic suction head loses power and resets to unlock, which can effectively prevent printing failure caused by opening the door by mistake during printing; in addition, the power supply circuit of the soft magnetic suction head can be directly connected in series with the host computer, and when the three-dimensional printer is working, if the door is opened in the middle, the printing operation can be automatically paused.

Description

Technical Field

[0001] The invention relates to the field of three-dimensional printing, in particular to a safety door lock device for a three-dimensional printer. Background Art

[0002] Existing 3D printers are not equipped with locking devices. During the printing process, the door can be opened at will, exposing the entire printing environment to the outdoors. Interference objects may enter the printer's build chamber, causing printing failure, wasting both materials and corresponding time. Summary of the invention

[0003] The object of the present invention is to provide a safe, intelligent and easy-to-control 3D printer safety door lock device.

[0004] The object of the present invention is achieved through the following technical solutions: a 3D printer safety door lock device, which includes an outer shell arranged on the inner wall of the opening and closing side of the 3D printer, a guide sleeve fixed to the outer shell and extending forward and backward, a latch assembly slidably connected in the guide sleeve, and a locking assembly arranged at the rear side of the latch assembly; the latch assembly includes a soft magnetic suction head, a fixing rod and a clamping ring connected in sequence from front to back; a fixing ring is arranged in the guide sleeve, and an elastic member A is arranged between the fixing ring and the soft magnetic suction head; the locking assembly includes a limiting member hinged on the outer shell The invention relates to a three-dimensional printer comprising a plurality of soft magnetic suction heads, a plurality of limit swing arms, and a plurality of limit switch arms. The limit swing arm comprises a plurality of limit switch arms, a plurality of limit switch arms, and a plurality of limit switch arms. The limit swing arm comprises a plurality of limit switch arms, a plurality of limit switch arms, and a plurality of limit switch arms. The limit swing arm comprises a plurality of limit switch arms, a plurality of limit switch arms, and a plurality of limit switch arms. The limit swing arm comprises a plurality of limit switch arms, a plurality of limit switch arms, and a plurality of limit switch arms. The limit swing arm comprises a plurality of limit switch arms, a plurality of limit switch arms, and a plurality of limit switch arms. The limit swing arm comprises a plurality of limit switch arms, a plurality of limit switch arms, and a plurality of limit switch arms.

[0005] Compared with the prior art, the advantages of the present invention are:

[0006] The present invention adopts a two-press trigger design. When the first press is made, the soft magnetic suction head is energized to firmly suck the door. When the second press is made, the soft magnetic suction head loses power and resets and unlocks. This can effectively prevent printing failure caused by accidental door opening during printing. In addition, the power supply circuit of the soft magnetic suction head can be directly connected in series to the host computer. When the 3D printer is working, if the door is opened during the process, the printing operation can be automatically paused. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a working principle diagram of an embodiment of a 3D printer safety door lock device of the present invention (state 1).

[0008] Figure 2It is a working principle diagram of an embodiment of a 3D printer safety door lock device of the present invention (state 2).

[0009] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure.

[0010] Figure 4 It is a working principle diagram of an embodiment of a 3D printer safety door lock device of the present invention (state 3).

[0011] Figure 5 yes Figure 4 Schematic diagram of the three-dimensional structure.

[0012] Figure 6 It is a cross-sectional view of a 3D printer safety door lock device.

[0013] Figure 7 It is a schematic diagram of the power supply circuit of the 3D printer safety door lock device.

[0014] Figure 8 It is a schematic diagram of the installation status of the 3D printer safety door lock device.

[0015] Explanation of reference numerals: 1 outer shell, 2 guide sleeve, 2-1 fixing ring, 2-2 elastic part A, 3 latch assembly, 3-1 soft magnetic suction head, 3-2 fixing rod, 3-3 snap ring, 4 locking assembly, 4-1 limit swing arm, 4-2 baffle, 4-3 elastic part B, 4-4 linkage rod, 4-5 vertical limit plate, 4-6 oblique limit plate, 5 power supply circuit, 5-1 breaking point A, 5-2 breaking point B, 5-3 conductive sheet A, 5-4 conductive sheet B, 6 host computer. DETAILED DESCRIPTION

[0016] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0017] like Figure 1-8 Shown is a schematic diagram of an embodiment of a 3D printer safety door lock device provided by the present invention.

[0018] A 3D printer safety door lock device comprises an outer shell 1 arranged on the inner wall of the opening and closing side of the 3D printer, a guide sleeve 2 fixed on the outer shell 1 and extending forward and backward, a latch assembly 3 slidably connected in the guide sleeve 2, and a locking assembly 4 arranged at the rear side of the latch assembly 3;

[0019] The latch assembly 3 comprises a soft magnetic suction head 3-1, a fixing rod 3-2 and a clamping ring 3-3 connected in sequence from front to back; a fixing ring 2-1 is provided in the guide sleeve 2, and an elastic member A2-2 is provided between the fixing ring 2-1 and the soft magnetic suction head 3-1;

[0020] The locking assembly 4 comprises a limit swing arm 4-1 hinged on the outer shell 1, an elastic triggering member arranged at the rear side of the limit swing arm 4-1, and a linkage rod 4-4 connected between the limit swing arm 4-1 and the elastic triggering member; the elastic triggering member is pushed by the clamp ring 3-3 to perform telescopic displacement and then pull the limit swing arm 4-1 to swing back and forth;

[0021] The soft magnetic suction head 3-1 is connected to a power supply circuit 5, and a breaking point A5-1 and a breaking point B5-2 are provided on the power supply circuit 5. The breaking point A5-1 is provided at the front end surface of the soft magnetic suction head 3-1, and a conductive sheet A5-3 corresponding to the breaking point A5-1 is provided on the inner side of the switch door of the 3D printer; the breaking point B5-2 is provided on the clamping ring 3-3, and a conductive sheet B5-4 corresponding to the breaking point B5-2 is provided on the limiting swing arm 4-1.

[0022] The soft magnetic suction head 3 - 1 includes two soft magnetic bodies A and B which are spaced apart from each other. When locked, the conductive sheet A5 - 3 contacts the soft magnetic body A and the soft magnetic body B at the same time.

[0023] The soft magnetic suction head 3-1 can be an electromagnet.

[0024] The front side of the limit swing arm 4-1 is provided with a hook groove, and the hook groove fits with the inner side wall of the front end of the clamping ring 3-3.

[0025] The breaking point B5-2 is located on the inner side wall of the front end of the snap ring 3-3, and the conductive sheet B5-4 is arranged in the hook groove.

[0026] The elastic trigger member includes a baffle 4-2 and an elastic member B4-3 disposed at the rear side of the baffle 4-2, and the rebound force of the elastic member A2-2 is greater than the rebound force of the elastic member B4-3.

[0027] A vertical limiting plate 4-5 is provided on the front side of the limiting swing arm 4-1.

[0028] An oblique limiting plate 4-6 is provided on the rear side of the limiting swing arm 4-1.

[0029] The vertical limit plate 4-5 and the oblique limit plate 4-6 are used to limit the swing area of ​​the limit swing arm 4-1 to ensure the stability of the operation of the entire mechanism.

[0030] The working principle of the present invention is as follows:

[0031] When the door of the 3D printer is in an open state, the clamp ring 3-3 is located in front of the limit swing arm 4-1, and the break point B5-2 is not closed; the soft magnetic suction head 3-1 and the conductive sheet A5-3 are separated, and the break point A5-1 is not closed (see Figure 1 ).

[0032] When closing the door, the conductive sheet A5-3 fixed on the door first contacts the soft magnetic suction head 3-1, and the circuit breaker point A5-1 is closed; continue to press the door, the clamp ring 3-3 moves backward, and pushes the limit swing arm 4-1 to swing obliquely downward along its hinge axis. When the limit swing arm 4-1 is separated from the front end of the clamp ring 3-3, it quickly returns to the vertical state under the action of the elastic member B4-3 and the linkage rod 4-4;

[0033] At this time, the limit swing arm 4-1 is located in the inner circle of the clamp ring 3-3, and the conductive sheet B5-4 on the limit swing arm 4-1 contacts the breaking point B5-2 of the inner circle of the clamp ring 3-3 (the breaking point B5-2 and the conductive sheet B5-4 are kept in a compressed state by the elastic member A2-2), and the power supply circuit 5 of the soft magnetic suction head 3-1 forms a closed loop, and the soft magnetic suction head 3-1 forms a magnetic suction force to suck the door, completing the door closing operation (see Figure 2-3 ).

[0034] When the door needs to be opened, the door is pressed continuously, the clamp ring 3-3 pushes the baffle plate 4-2 to move backward, and the limit swing arm 4-1 is pulled by the linkage rod 4-4 to swing obliquely downward along its hinge axis until the limit swing arm 4-1 is separated from the inner ring of the clamp ring 3-3. At this time, the breaking point B5-2 is disconnected, and the soft magnetic suction head 3-1 loses its magnetic attraction.

[0035] Then the operator withdraws the force, and the clamp ring 3-3 moves forward rapidly under the action of the restoring force of the elastic member A2-2, the door is bounced open, and the limit swing arm 4-1 returns to the vertical state under the action of the elastic member B4-3. At this time, the clamp ring 3-3 is located in front of the limit swing arm 4-1, completing the door opening operation (see Figure 4-5 ).

[0036] In another embodiment, a host computer 6 for controlling the operation of the 3D printer is also connected in series to the power supply circuit 5. When the 3D printer is working, if the door is opened in the middle, the printing operation can be automatically terminated.

Claims

1. A 3D printer safety door lock device, characterized in that: It comprises an outer shell (1) arranged on the inner wall of the opening and closing side of the 3D printer, a guide sleeve (2) fixed on the outer shell (1) and extending forward and backward, a latch assembly (3) slidably connected in the guide sleeve (2), and a locking assembly (4) arranged on the rear side of the latch assembly (3); The latch assembly (3) comprises a soft magnetic suction head (3-1), a fixing rod (3-2) and a clamping ring (3-3) which are connected in sequence from front to back; a fixing ring (2-1) is provided inside the guide sleeve (2), and an elastic member A (2-2) is provided between the fixing ring (2-1) and the soft magnetic suction head (3-1); The locking assembly (4) comprises a limit swing arm (4-1) hinged on the outer shell (1), an elastic triggering member arranged at the rear side of the limit swing arm (4-1), and a linkage rod (4-4) connected between the limit swing arm (4-1) and the elastic triggering member; the elastic triggering member is pushed by the clamping ring (3-3) to perform telescopic displacement, thereby pulling the limit swing arm (4-1) to swing back and forth; The soft magnetic suction head (3-1) is connected to a power supply circuit (5); a disconnection point A (5-1) and a disconnection point B (5-2) are provided on the power supply circuit (5); the disconnection point A (5-1) is provided on the front end surface of the soft magnetic suction head (3-1); a conductive sheet A (5-3) corresponding to the disconnection point A (5-1) is provided on the inner side of a switch door of the three-dimensional printer; the disconnection point B (5-2) is provided on the clamping ring (3-3); and a conductive sheet B (5-4) corresponding to the disconnection point B (5-2) is provided on the limit swing arm (4-1).

2. The 3D printer safety door lock device according to claim 1, characterized in that: The soft magnetic suction head (3-1) comprises two spaced-apart soft magnetic bodies A and B; when locked, the conductive sheet A (5-3) contacts the soft magnetic bodies A and B simultaneously.

3. The 3D printer safety door lock device according to claim 1, characterized in that: The front side of the position-limiting swing arm (4-1) is provided with a hook groove, and the hook groove fits with the inner side wall of the front end of the clamping ring (3-3).

4. The 3D printer safety door lock device according to claim 3, characterized in that: The breaking point B (5-2) is located on the inner side wall of the front end of the clamping ring (3-3), and the conductive sheet B (5-4) is arranged in the hook groove.

5. The 3D printer safety door lock device according to claim 1, characterized in that: The elastic triggering member comprises a baffle (4-2) and an elastic member B (4-3) arranged at the rear side of the baffle (4-2), and the rebound force of the elastic member A (2-2) is greater than the rebound force of the elastic member B (4-3).

6. The 3D printer safety door lock device according to claim 1, characterized in that: A vertical limiting plate (4-5) is provided on the front side of the limiting swing arm (4-1).

7. The 3D printer safety door lock device according to claim 6, characterized in that: An oblique limiting plate (4-6) is provided on the rear side of the limiting swing arm (4-1).

8. The 3D printer safety door lock device according to any one of claims 1 to 7, characterized in that: The power supply circuit (5) is also connected in series with a host computer (6) for controlling the operation of the three-dimensional printer.

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