Self-checking and self-cleaning system for spray head

Abstract

The utility model discloses a nozzle self-checking and self-cleaning system which comprises a printing position and a nozzle, and further comprises a testing position and a cleaning position, one side of the cleaning position is provided with a cleaning device used for cleaning the nozzle, the nozzle is a movable nozzle, one side of the testing position is provided with a judging assembly used for judging whether the nozzle is qualified or not, and the testing position is provided with a self-checking device used for checking whether the nozzle is qualified or not. And the judgment assembly, the spray head and the cleaning device are in signal connection. The automatic cleaning device has the advantages that automatic inspection and automatic cleaning of the spray head can be achieved, manual participation is not needed, corresponding manpower is saved, and normal operation of 3D printing production is greatly guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing nozzle cleaning, and in particular to a nozzle self-checking and self-cleaning system. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer.

[0003] When performing 3D printing, a nozzle is needed to jet-print powdered metals and plastics. However, after a period of use, the nozzle is easily clogged by powder, making it unable to work normally. Therefore, the nozzle needs to be cleaned when it is clogged to clean out the powder that is blocking its interior so that it can continue to work normally. In the prior art, the cleaning of the nozzle is done manually by checking and cleaning the nozzle at regular intervals. Checking and cleaning the nozzle multiple times is not only a waste of manpower, but once the person responsible for cleaning or is too busy to check and clean the nozzle in time or simply forgets, it will have a great impact on the entire 3D printing production.

[0004] Therefore, it is necessary to propose a nozzle self-inspection and self-cleaning system, which can realize automatic inspection and automatic cleaning of the nozzle without human intervention, which not only saves corresponding manpower, but also greatly ensures the normal progress of 3D printing production. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and propose a nozzle self-inspection and self-cleaning system, which can realize automatic inspection and automatic cleaning of the nozzle without human intervention, which not only saves corresponding manpower but also greatly ensures the normal progress of 3D printing production.

[0006] The purpose of the utility model is achieved through the following technical scheme: a nozzle self-inspection and self-cleaning system, including a printing position and a nozzle, and also including a test position and a cleaning position. A cleaning device for cleaning the nozzle is arranged on one side of the cleaning position. The nozzle is a movable nozzle. A judgment component for judging whether the nozzle is qualified is arranged on one side of the test position. The judgment component, the nozzle, and the cleaning device are all connected by signals.

[0007] It also includes an alarm device, which is connected to the judgment component signal.

[0008] The alarm device is a light-emitting and sound-emitting device.

[0009] The alarm device is arranged on the sprinkler head.

[0010] The test position is provided with a test paper, and the judgment component includes a camera, and the camera is electrically connected to an image processing device.

[0011] The printing position, test position and cleaning position are arranged side by side in sequence, and screw rods and limit rods are respectively arranged on both sides of the printing position, test position and cleaning position. The threaded rotating sleeve on the screw rod is provided with a first slide seat, and the sliding sleeve on the limit rod is provided with a second slide seat. A connecting rod is provided between the first slide seat and the second slide seat, and the sliding sleeve on the connecting rod is provided with a third slide seat. The nozzle is arranged on one side of the third slide seat, and also includes a first motor for driving the screw rod to rotate.

[0012] One side of the connecting rod is provided with saw teeth, the interior of the third sliding seat is hollow, a second motor is provided on the third sliding seat, and a gear meshing with the saw teeth is provided at the output end of the second motor.

[0013] A telescopic rod is arranged on one side of the third sliding seat, and the spray head is arranged on the telescopic rod.

[0014] The beneficial effects of the utility model are as follows: by setting a cleaning position, a test position and a judgment component, the nozzle can be judged to be qualified at a regular basis. When the nozzle is judged to be unqualified, the nozzle is moved to the cleaning position for cleaning. No human intervention is required throughout the process, thus saving corresponding human resources. Due to the full machine control, the normal progress of 3D printing production is greatly guaranteed, and self-inspection and self-cleaning of the nozzle are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model;

[0016] Figure 2 This is a working flow diagram of Example 1 of the utility model;

[0017] Figure 3 This is a schematic diagram of the screw connection;

[0018] In the figure, 1-printing position, 2-nozzle, 3-testing position, 4-cleaning position, 5-cleaning device, 6-alarm device, 7-camera, 8-screw rod, 9-limit rod, 10-first slide, 11-second slide, 12-connecting rod, 13-third slide, 14-first motor, 15-sawtooth, 16-second motor, 17-telescopic rod, 18-image processing equipment. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0020] It is to be noted that the concepts of directions “left”, “right”, “up”, “down”, “front”, “back”, “inside” and “outside” in the following schemes are all relative directions and will not be listed one by one here.

[0021] A nozzle self-checking and self-cleaning system, reference Figure 1 , including a printing position 1, a test position 3 and a cleaning position 4 arranged in sequence. The nozzle 2 is a movable nozzle, which can be moved to the printing position 1, the test position 3 and the cleaning position 4. A cleaning device 5 for cleaning the nozzle 2 is arranged on the cleaning position 4. A test paper is arranged on the test position 3. A first alarm device 6 is arranged on the nozzle 2, and a second alarm device 6 is arranged at the work place of the cleaning personnel. The alarm device 6 is a light-emitting device. For those skilled in the art, the first alarm device 6 can be arranged on the test position 3 or the cleaning position 4, or can be arranged separately as a device. However, when a test position 3 and a cleaning position 4 match multiple printing positions 1 and nozzles 2, it is arranged on the nozzle 2, so that the staff can quickly find the nozzle 2 that needs to be manually cleaned. Therefore, the first alarm device 6 allows the cleaning personnel to quickly find the nozzle 2 to be cleaned, and the second alarm device 6 reminds the cleaning personnel who stay at the work place that there is a nozzle 2 that needs to be manually cleaned. For those skilled in the art, the first alarm device 6 is not necessary. A camera 7 is arranged on one side of the test position 3. The camera 7 can take pictures of the test paper. The camera 7 is electrically connected to an image processing device 18 for processing the image captured by the camera 7. The image processing device 18, the nozzle 2, the cleaning device 5, and the alarm device 6 are all signal-connected.

[0022] refer to Figure 2, when the nozzle 2 sprays on the printing position 1 for a period of time, which can be one hour or two hours, it can be set as needed. The nozzle 2 moves to the test position 3 and sprays on the test paper. When the nozzle 2 finishes spraying on the test paper, the camera 7 shoots the image on the test paper, and the image processing device 18 processes the shot image. The processing principle is to compare the image on the test paper with the standard image stored in advance. If the error between the image on the test paper and the standard image is within the set range, it is qualified, and the nozzle 2 returns to the printing position 1 to continue printing. If the error between the image on the test paper and the standard image is not within the set range, the nozzle 2 moves to the cleaning position 4 for cleaning. After the cleaning is completed, the nozzle 2 moves to the test position 3 for testing, and the above process is repeated. When the nozzle 2 fails to pass the cleaning for multiple times, the alarm device 6 sounds an alarm and calls for manual cleaning.

[0023] For further improvement of the present invention, the above cases can be further extended to provide a variety of new embodiments.

[0024] As a second embodiment of the present invention, based on Embodiment 1, Figure 3 , a screw rod 8 and a limit rod 9 are respectively provided on both sides of the printing position 1, the test position 3 and the cleaning position 4. The screw rod 8 is connected to a first motor 14 for driving the screw rod 8 to rotate. A first slide 10 is provided on the screw rod 8. A second slide 11 is provided on the limit rod 9. A connecting rod 12 is provided between the first slide 10 and the second slide 11. A third slide 13 is provided on the connecting rod 12. A second motor 16 is provided on the third slide 13. A sawtooth 15 is provided on the connecting rod 12. A gear meshing with the sawtooth 15 is provided at the output end of the second motor 16. A telescopic rod 17 is provided on the front side of the third slide 13. A nozzle is provided at the lower end of the telescopic rod 17.

[0025] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above description or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A nozzle self-checking and self-cleaning system, comprising a printing position (1) and a nozzle (2), characterized in that: It also comprises a test position (3) and a cleaning position (4), wherein a cleaning device (5) for cleaning the nozzle (2) is arranged on one side of the cleaning position (4), wherein the nozzle (2) is a movable nozzle, and a judgment component for judging whether the nozzle is qualified is arranged on one side of the test position (3), wherein the judgment component, the nozzle (2) and the cleaning device (5) are all connected by signals.

2. A nozzle self-checking and self-cleaning system according to claim 1, characterized in that: It also comprises an alarm device (6), wherein the alarm device (6) is connected to the judgment component signal.

3. A nozzle self-checking and self-cleaning system according to claim 2, characterized in that: The alarm device (6) is a light-emitting and sound-emitting device.

4. A nozzle self-checking and self-cleaning system according to claim 2, characterized in that: The number of the alarm devices (6) is two, and one of the alarm devices (6) is arranged on the spray head (2).

5. The nozzle self-checking and self-cleaning system according to claim 1, characterized in that: A test paper is arranged on the test position (3), and the judgment component comprises a camera (7), wherein the camera (7) is electrically connected to an image processing device (18).

6. A nozzle self-checking and self-cleaning system according to claim 1, characterized in that: The printing position (1), the test position (3) and the cleaning position (4) are arranged side by side in sequence. A screw rod (8) and a limit rod (9) are respectively arranged on both sides of the printing position (1), the test position (3) and the cleaning position (4). A first slide seat (10) is provided on the screw rod (8) in a threaded rotation sleeve. A second slide seat (11) is provided on the limit rod (9) in a sliding sleeve. A connecting rod (12) is provided between the first slide seat (10) and the second slide seat (11). A third slide seat (13) is provided on the connecting rod (12) in a sliding sleeve. The nozzle (2) is arranged on one side of the third slide seat (13). The nozzle (2) also includes a first motor (14) for driving the screw rod (8) to rotate.

7. A nozzle self-checking and self-cleaning system according to claim 6, characterized in that: A sawtooth (15) is provided on one side of the connecting rod (12); the interior of the third slide seat (13) is hollow; a second motor (16) is provided on the third slide seat (13); and a gear meshing with the sawtooth (15) is provided at the output end of the second motor (16).

8. The nozzle self-checking and self-cleaning system according to claim 6, characterized in that: A telescopic rod (17) is provided on one side of the third sliding seat (13), and the spray head (2) is arranged on the telescopic rod (17).

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