3D printing bridge raw material detection device

Abstract

The utility model discloses a 3D printing bridge raw material detection device, belongs to the technical field of 3D printing, and adopts the technical scheme that the 3D printing bridge raw material detection device comprises a box body and a controller, the controller is bolted to the front side of the box body, a printing wire rod penetrates through the box body, a plurality of fixing plates are annularly bolted to the interior of the box body, and the fixing plates are fixed to the box body. A contact type detection assembly is annularly attached to the surface of the printing wire rod, an image detection assembly is arranged in the box body, and the side, close to the fixing plate, of the image detection assembly is connected with the fixing plate; the contact type detection assembly comprises an arc-shaped plate, by arranging the contact type detection assembly, the concave-convex change of the surface of the wire can be accurately detected, accurate data support is provided for follow-up judgment whether printing consumables meet the quality requirement or not, and then the quality of raw materials for 3D printing of bridges can be guaranteed; and the printing quality problem caused by protrusions or salient points on the surface of the consumable is avoided, and the structural integrity and stability of the 3D printing bridge are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a testing device for raw materials used in 3D printed bridges. Background Technology

[0002] 3D printed bridges are an innovative way to build or manufacture bridges using 3D printing technology. 3D printed bridges can be applied to various types of bridges, including pedestrian bridges, bicycle bridges, and bridges for small vehicles.

[0003] Existing 3D printing filament winding machines do not properly detect the wire diameter of the filament during winding, resulting in the inability to promptly remove areas with different wire diameters after winding, which affects subsequent use and product quality.

[0004] An existing patent (publication number: CN217476552U) discloses a 3D printing consumable wire diameter detection device. By setting up a detection component, the 3D printing consumable passes through the detection component. The detection component is used to detect the wire diameter of the 3D printing consumable. When the wire diameter of the 3D printing consumable exceeds the set value, it will be blocked in time, thereby detecting the product size and reducing product defects, improving quality, reducing personnel inspection, and improving efficiency. By setting up a wire guide wheel, the detection effect of the detection component is made more accurate.

[0005] To address the aforementioned issues, existing patents offer solutions that can detect the wire diameter of 3D printing consumables. However, they are not ideal for detecting defects such as bumps, scratches, or bubbles on the surface of the 3D printing consumables. Consequently, the inaccuracy of the detection results affects the quality of subsequent 3D printed bridges.

[0006] To address this, a testing device for 3D printed bridge materials is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a 3D printed bridge material testing device that can solve the problem that while existing devices can test the wire diameter of 3D printed materials, they are not convenient for testing when there are defects such as protrusions, bumps, scratches, or bubbles on the surface of the 3D printed materials. Therefore, the inaccuracy of the test results affects the quality of the subsequent 3D printed bridge.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a 3D printed bridge material testing device, comprising a housing and a controller, wherein the controller is bolted to the front side of the housing, a printing filament runs through the inside of the housing, and several fixing plates are bolted in a ring shape inside the housing, a contact detection component is attached to the surface of the printing filament in a ring shape, and an image detection component is provided inside the housing, with the side of the image detection component close to the fixing plate connected to it;

[0009] The contact detection assembly includes an arc-shaped plate that contacts the printing line on the side of the arc-shaped plate. A sliding rod is bolted to the side of the arc-shaped plate that is close to the fixed plate, and the sliding rod extends to the outside of the fixed plate on the side close to the fixed plate. A return spring is sleeved on the surface of the sliding rod, and the return spring is connected to both the arc-shaped plate and the sliding rod on the side close to them respectively. A trigger switch is sleeved on the surface of the sliding rod, and the trigger switch is electrically connected to the controller.

[0010] Preferably, the trigger switch includes a fixed cylinder, which is connected to the fixed plate on the side close to it. A synchronizing plate is slidably contacted inside the fixed cylinder, and the synchronizing plate is connected to the sliding rod on the side close to it. A moving contact is provided on the side of the synchronizing plate away from the sliding rod, and a stationary contact is provided on the inner wall of the fixed cylinder. The moving contact and the stationary contact are used in conjunction.

[0011] Preferably, the image detection component includes a fixing ring connected to the side of the fixing plate near the fixing plate. The fixing ring has multiple sets of support plates arranged in a ring shape inside, and a camera is rotatably arranged inside the support plate.

[0012] Preferably, a support rod is provided on the side of the camera near the support plate, the support rod is connected to the support plate, and a ring-shaped fill light is bolted to the rear side of the fixing ring.

[0013] Preferably, the plurality of arc-shaped plates are arranged in an alternating pattern and distributed axially with the printing line as the axis.

[0014] Preferably, guide rods extend through the front and rear sides of the synchronization plate, and the guide rods are connected to the inner wall of the fixed cylinder on the side closest to it.

[0015] Preferably, the top and bottom of the printing filament respectively roll into contact with a limiting wheel and a driving wheel. The limiting wheel and the driving wheel are arranged in two sets and are respectively located on the front and rear sides inside the housing. The driving wheel is electrically connected to the controller.

[0016] Preferably, a movable rod is bolted to the top of the limiting wheel, and the top of the movable rod extends to the outside of the top fixing plate. A compression spring is sleeved on the surface of the movable rod, and the side of the compression spring near the limiting wheel and the fixing plate is connected to both respectively.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By setting up a contact detection component, this application can accurately detect the unevenness of the filament surface, providing accurate data support for subsequent judgment on whether the printing consumables meet the quality requirements. This helps to ensure the quality of the raw materials used for 3D printing bridges, avoid printing quality problems caused by protrusions or bumps on the surface of the consumables, and ensure the structural integrity and stability of the 3D printed bridges.

[0019] 2. By setting up an image detection component, this application can comprehensively detect other appearance defects on the surface of printing consumables, such as scratches and bubbles, in addition to unevenness. Through comprehensive detection, unqualified consumables with appearance problems can be screened out and prevented from entering the printing process, thereby improving the overall quality of 3D printed bridges. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the 3D printing bridge raw material testing device of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the box body of this utility model;

[0022] Figure 3 This is a schematic diagram showing the connection between the contact detection component of this utility model, the fixing plate, and the printing consumables;

[0023] Figure 4 This is a schematic diagram of the trigger switch of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the image detection component of this utility model;

[0025] Figure 6 This is a schematic diagram of the drive wheel and limit wheel of this utility model.

[0026] In the diagram: 1. Housing; 2. Controller; 3. Printing cable; 4. Fixing plate; 5. Contact detection component; 51. Arc plate; 52. Sliding rod; 53. Return spring; 54. Trigger switch; 541. Fixing cylinder; 542. Synchronization plate; 543. Moving contact; 544. Stationary contact; 6. Image detection component; 61. Fixing ring; 62. Support plate; 63. Camera; 64. Support rod; 65. Ring fill light; 7. Guide rod; 8. Limit wheel; 9. Drive wheel; 10. Movable rod; 11. Compression spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 The present invention provides the following technical solution:

[0029] A 3D printed bridge material testing device includes a housing 1 and a controller 2. The controller 2 is bolted to the front of the housing 1. A printing filament 3 runs through the inside of the housing 1. Several fixing plates 4 are bolted in a ring inside the housing 1. A contact detection component 5 is attached to the surface of the printing filament 3 in a ring. An image detection component 6 is provided inside the housing 1, and the side of the image detection component 6 closest to the fixing plate 4 is connected to it.

[0030] The contact detection assembly 5 includes an arc-shaped plate 51, which contacts the printing line 3 on the side of the arc-shaped plate 51. A sliding rod 52 is bolted to the side of the arc-shaped plate 51 near the fixed plate 4, and the sliding rod 52 extends to the outside of the fixed plate 4 on the side near the fixed plate 4. A return spring 53 is sleeved on the surface of the sliding rod 52, and the return spring 53 is connected to both the arc-shaped plate 51 and the sliding rod 52 on the side near the arc-shaped plate 51 and the sliding rod 52 respectively. A trigger switch 54 is sleeved on the surface of the sliding rod 52, and the trigger switch 54 is electrically connected to the controller 2.

[0031] Specifically, such as Figure 4 As shown, the trigger switch 54 includes a fixed cylinder 541, which is connected to the fixed plate 4 on the side closer to it. The fixed cylinder 541 has a slidable contact with a synchronization plate 542 inside it, and the synchronization plate 542 is connected to the sliding rod 52 on the side closer to it. A moving contact 543 is provided on the side of the synchronization plate 542 away from the sliding rod 52, and a stationary contact 544 is provided on the inner wall of the fixed cylinder 541. The moving contact 543 and the stationary contact 544 are used together.

[0032] In this embodiment: by setting a contact detection component 5, under normal circumstances, the return spring 53 keeps the arc plate 51 in contact with the surface of the printing filament 3. When encountering a protrusion on the surface of the printing filament 3, the arc plate 51 will be pushed up, causing the sliding rod 52 to move outward, thereby triggering the trigger switch 54 sleeved on the surface of the sliding rod 52. The synchronization plate 542 of the trigger switch 54 will move with the sliding rod 52, causing the moving contact 543 to contact the stationary contact 544, transmitting the signal to the controller 2, thereby stopping the feeding of the printing filament 3, making it easier for the staff to handle it, and realizing the detection of protrusions or bumps on the surface of the printing filament 3.

[0033] Specifically, such as Figure 5 As shown, the image detection component 6 includes a fixing ring 61, which is connected to the fixing plate 4 on the side close to it. Multiple sets of support plates 62 are arranged in a ring inside the fixing ring 61, and a camera 63 is rotatably arranged inside the support plate 62.

[0034] Specifically, such as Figure 5 As shown, a support rod 64 is provided on the side of the camera 63 near the support plate 62. The support rod 64 is connected to the support plate 62, and a ring light 65 is bolted to the rear side of the fixing ring 61.

[0035] In this embodiment: by setting up the image detection component 6, when the printing filament 3 passes through the housing 1, the ring light 65 provides uniform illumination, and the camera 63 takes pictures of the surface of the printing filament 3 from different angles to obtain its appearance image. The image processing structure connected to the controller 2 analyzes and processes these images, which can detect various appearance defects such as scratches and bubbles, and can prevent the printing filament 3 from entering the printing process, thereby improving the overall quality of the 3D printed bridge.

[0036] Specifically, such as Figure 3 As shown, several arc-shaped plates 51 are arranged in an alternating pattern and distributed along the axial direction of the printing line 3.

[0037] Specifically, such as Figure 4 As shown, guide rods 7 penetrate both the front and rear sides of the synchronous plate 542, and the side of the guide rods 7 closest to the inner wall of the fixed cylinder 541 is connected to it.

[0038] In this embodiment, the axial staggered distribution of several arc-shaped plates 51 can fully cover the circumferential surface of the printing line 3, ensuring that no possible protrusions or bumps are missed, thus improving the comprehensiveness and reliability of the detection. The guide rod 7 can limit the movement trajectory of the synchronization plate 542.

[0039] Specifically, such as Figure 6 As shown, the top and bottom of the printing filament 3 roll into contact with the limiting wheel 8 and the drive wheel 9, respectively. The limiting wheel 8 and the drive wheel 9 are arranged in two sets and are respectively located on the front and rear sides inside the housing 1. The drive wheel 9 is electrically connected to the controller 2.

[0040] Specifically, such as Figure 6 As shown, a movable rod 10 is bolted to the top of the limiting wheel 8, and the top of the movable rod 10 extends to the outside of the top fixing plate 4. A compression spring 11 is sleeved on the surface of the movable rod 10, and the compression spring 11 is connected to the limiting wheel 8 and the fixing plate 4 respectively on the side close to them.

[0041] In this embodiment: by setting a limiting wheel 8 and a driving wheel 9, the driving wheel 9 can be controlled by the controller 2 to drive the printing filament 3 to move stably in the housing 1 at a predetermined speed and direction. The combination of the compression spring 11 and the movable rod 10 enables the limiting wheel 8 to adapt to the changes in the position of the printing filament 3 and adjust accordingly, always maintaining contact with the printing filament 3 and ensuring that the printing filament 3 is in a stable conveying position.

[0042] Working principle: When inspecting the printing filament 3, the controller 2 controls the drive wheel 9 to drive the printing filament 3 to move stably in the housing 1 at a predetermined speed and direction. When it encounters a protrusion on the surface of the printing filament 3, the arc plate 51 is lifted, causing the sliding rod 52 to move outward, thereby triggering the trigger switch 54 sleeved on the surface of the sliding rod 52. The synchronization plate 542 of the trigger switch 54 moves with the sliding rod 52, causing the moving contact 543 to contact the stationary contact 544, transmitting a signal to the controller 2, thereby stopping the delivery of the printing filament 3, making it easier for the staff to handle. Subsequently, uniform illumination is provided by the ring supplement light 65, and the camera 63 takes pictures of the surface of the printing filament 3 from different angles to obtain its appearance image. The image processing structure connected to the controller 2 analyzes and processes these images, which can detect various appearance defects such as scratches and bubbles, thus preventing the printing filament 3 from entering the printing process.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 3D printing bridge raw material detection device, comprising a box body (1) and a controller (2), characterized in that: The controller (2) is bolted on the front side of the box (1), the inside of the box (1) is through the printing wire (3), the inside of the box (1) is annularly bolted with several fixed plates (4), the surface of the printing wire (3) is annularly attached with a contact detection assembly (5), the inside of the box (1) is provided with an image detection assembly (6), and the image detection assembly (6) is connected with the side close to the fixed plate (4). The contact detection assembly (5) comprises an arc-shaped plate (51), the side close to the printing wire (3) of the arc-shaped plate (51) is in contact with the printing wire (3), the side close to the fixed plate (4) of the arc-shaped plate (51) is bolted with a sliding rod (52), and the side close to the fixed plate (4) of the sliding rod (52) extends to the outside of the fixed plate (4), the surface of the sliding rod (52) is sleeved with a reset spring (53), and the sides close to the arc-shaped plate (51) and the sliding rod (52) of the reset spring (53) are connected with the arc-shaped plate (51) and the sliding rod (52) respectively, the surface of the sliding rod (52) is sleeved with a trigger switch (54), and the trigger switch (54) is electrically connected with the controller (2). 2.The 3D printing bridge raw material detection device according to claim 1, characterized in that: The trigger switch (54) comprises a fixed cylinder (541), the side close to the fixed plate (4) of the fixed cylinder (541) is connected with the fixed plate (4), the inside of the fixed cylinder (541) is slidably contacted with a synchronous plate (542), and the side close to the sliding rod of the synchronous plate (542) is connected with the sliding rod, the side away from the sliding rod of the synchronous plate (542) is provided with a moving contact (543), and the inner wall of the fixed cylinder (541) is provided with a static contact (544), and the moving contact (543) and the static contact (544) are used in cooperation. 3.The 3D printing bridge raw material detection device of claim 1, wherein: The image detection assembly (6) comprises a fixed ring (61), the side close to the fixed plate (4) of the fixed ring (61) is connected with the fixed plate (4), a plurality of support plates (62) are annularly arranged in the inside of the fixed ring (61), and a camera (63) is rotatably arranged in the inside of the support plate (62).

4. The 3D printing bridge raw material detection device according to claim 3, characterized in that: The side close to the support plate (62) of the camera (63) is provided with a support rod (64), the support rod (64) is connected with the support plate (62), and the rear side of the fixed ring (61) is bolted with an annular light supplement lamp (65). 5.The 3D printing bridge raw material detection device of claim 1, wherein: A plurality of arc-shaped plates (51) are arranged in a staggered manner and distributed around the printing wire (3). 6.The 3D printing bridge raw material detection device of claim 2, wherein: The front side and the rear side of the inside of the synchronous plate (542) are both through the guide rod (7), and the side close to the inner wall of the fixed cylinder (541) of the guide rod (7) is connected with the fixed cylinder (541). 7.The 3D printing bridge raw material detection device of claim 1, wherein: The top and the bottom of the printing wire (3) are respectively in rolling contact with a limiting wheel (8) and a driving wheel (9), the limiting wheel (8) and the driving wheel (9) are arranged in two groups and are respectively arranged on the front side and the rear side of the inside of the box (1), and the driving wheel (9) is electrically connected with the controller (2). 8.The 3D printing bridge raw material detection device of claim 7, wherein: The top of the limiting wheel (8) is bolted with a movable rod (10), and the top of the movable rod (10) extends to the outside of the top fixed plate (4), the surface of the movable rod (10) is sleeved with a pressing spring (11), and the sides close to the limiting wheel (8) and the fixed plate (4) of the pressing spring (11) are respectively connected with the limiting wheel (8) and the fixed plate (4).

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