Optical linear sifter

Abstract

The utility model discloses an optical straight line formula screening machine belongs to screening machine field. The device includes the contact lever of sliding setting in the both sides of conveyer belt, and the position of light pole or headless screw is limited on the conveyer belt surface through contact lever, and the midpoint of contact lever and the center of optical camera are located on same vertical plane, and the shooting range of optical camera can be understood directly through contact lever, and the limit rod of sliding is also set on the conveyer belt surface, and the limit rod is perpendicular to contact lever, and then the C shape area is formed between limit rod and contact lever after the limit rod sliding and the adhesion of two contact lever, and the movement of light pole or headless screw on the conveyer belt surface can be blocked through limit rod, and it is guaranteed that the light pole or headless screw will not separate from the shooting area when optical camera shoots, and the guide rod of rotating is set on the one end of contact lever away from limit rod, and the light pole or headless screw is guided to slide between two contact lever through guide rod, and it is avoided that the light pole or headless screw is deviated from the track by vibration.

Description

Technical Field

[0001] This utility model relates to the field of screening machines, and in particular to an optical linear screening machine. Background Technology

[0002] An optical linear sorting machine is an automated device that combines optical inspection technology with a linear conveyor system. It is primarily used for high-precision, high-efficiency inspection and sorting of products based on their appearance, dimensions, and defects. Its core function is to quickly identify surface defects, dimensional deviations, color anomalies, and other issues in products through optical imaging and image processing algorithms, and then classify or reject products according to preset standards.

[0003] Optical linear sorting machines typically use a vibratory feeder to load items onto a conveyor belt, which then moves the items to the position of an optical camera. The camera captures images, and the shape of the items is determined based on the images and a comparison system, identifying irregularly shaped or defective products. They are generally suitable for long-axis products, such as bare rods and headless screws, or products that only require inspection from one side. However, the application of optical linear sorting machines has certain limitations. When placed near large equipment, interference from the operation of the equipment can cause objects to move during inspection, potentially preventing the capture of effective identification images. Furthermore, bare rods and headless screws, being cylindrical in shape, inevitably move on the conveyor belt surface after vibration, making it difficult to accurately stabilize them within the camera's detection range and affecting the inspection results.

[0004] In summary, existing optical linear sorting machines, when subjected to vibration, inevitably experience the problem of cylindrical parts such as the optical rod and headless screws moving independently, making it difficult to maintain stability within the camera's detection range and affecting the imaging and detection results. Utility Model Content

[0005] This invention provides an optical linear sorting machine, which solves the problem in the prior art that when optical linear sorting machines are subjected to vibration, it is difficult to prevent cylindrical parts such as the optical rod and headless screw from moving autonomously, making it difficult to stay stable within the camera's detection range and affecting the shooting and detection results.

[0006] An optical linear sorting machine includes a sorting table, a vibrating plate and a conveyor belt disposed on the surface of the sorting table, an optical camera fixedly connected inside the sorting table, and a guiding mechanism disposed between the sorting table and the conveyor belt, the guiding mechanism comprising:

[0007] A guide block is fixedly installed on the surface of the screening table. Two connecting rods are slidably connected inside the guide block. A synchronization component is provided between the two connecting rods and the guide block. A contact rod is fixedly connected to the end of the connecting rod.

[0008] Two guide rods are rotatably mounted at one end of the contact rod near the vibratory plate. The two contact rods and the guide rods are symmetrically arranged relative to the conveyor belt. A limit assembly is provided between the guide rods and the contact rods. A connecting spring is fixedly provided between the guide rods and the contact rods.

[0009] A limiting rod is slidably disposed on the surface of the conveyor belt, and the limiting rod is perpendicular to the contact rod.

[0010] Optionally, the synchronization component includes a bidirectional screw rotatably disposed inside the guide block, the bidirectional screw being threadedly connected to two connecting rods.

[0011] Optionally, the guide block has a U-shaped cross-section and is horizontally inserted inside the conveyor belt.

[0012] Optionally, the limiting component includes a limiting shaft slidably disposed inside the guide rod, a limiting spring fixedly connected between the limiting shaft and the guide rod, and a limiting groove formed on the surface of the contact rod, the limiting groove being adapted to the limiting shaft.

[0013] Optionally, a limiting post is fixedly connected to the surface of the limiting shaft, and a plurality of limiting grooves are opened on the surface of the contact rod. The plurality of limiting grooves are connected to the limiting grooves and are arranged in a ring array at the edge of the limiting grooves. The limiting grooves are adapted to the limiting post.

[0014] Optionally, a sliding shaft is fixedly connected to the surface of the limiting shaft, and a sliding groove is provided inside the guide rod, with the sliding shaft and the sliding groove being adapted to each other.

[0015] Optionally, both ends of the connecting spring are fixedly connected to connecting blocks, the surface of the connecting rod is fixedly connected to a base rod, and the surfaces of the base rod and the guide rod are both provided with connecting grooves, with the connecting blocks fitting into the connecting grooves.

[0016] Optionally, the guide rod has an inner groove on its surface, and a connecting post is rotatably connected to the surface of a single connecting block, the connecting post being adapted to the inner groove.

[0017] Optionally, each of the connecting blocks is slidably connected with a fixing rod, and the guide rod and the base rod are provided with a number of fixing grooves on their surfaces, and the fixing rods are adapted to the fixing grooves.

[0018] Optionally, a cylinder is fixedly connected to the surface of the screening table, and the end of the piston rod inside the cylinder is fixedly connected to the end of the limiting rod.

[0019] This invention provides an optical linear sorting machine, including contact rods slidably disposed on both sides of a conveyor belt. The distance between the contact rods limits the position of a light rod or headless screw on the conveyor belt surface. The midpoint of the contact rod is located on the same vertical plane as the center of the optical camera, allowing for a direct view of the camera's shooting range and facilitating control of the conveyor belt and object movement. A sliding limiting rod is also disposed on the conveyor belt surface, perpendicular to the contact rods. When the limiting rod slides and engages with the two contact rods, a C-shaped area is formed between the limiting rod and the contact rods. This limiting rod prevents the light rod or headless screw from moving further on the conveyor belt surface, ensuring that the light rod or headless screw does not leave the shooting area during camera capture. Simultaneously, a rotating guide rod is disposed at the end of the contact rod away from the limiting rod, guiding the light rod or headless screw to slide between the two contact rods. This prevents vibration of the conveyor belt from causing the light rod or headless screw to deviate from its trajectory and enter the space between the two contact rods. The limiting rod, contact rod, and guide rod confine the light rod or headless screw to be detected within the shooting area, ensuring the smooth operation of the optical camera. Attached Figure Description

[0020] Figure 1 A schematic diagram of an optical linear screening machine provided by this utility model;

[0021] Figure 2 A three-dimensional structural view of the guiding mechanism provided by this utility model;

[0022] Figure 3 Provided by this utility model Figure 2 Enlarged view of the local structure at point A;

[0023] Figure 4 An exploded three-dimensional view of the guiding mechanism provided by this utility model;

[0024] Figure 5 Provided by this utility model Figure 4 Enlarged view of the local structure at point B.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Screening table; 2. Vibratory feeder; 3. Conveyor belt;

[0027] 41. Guide block; 42. Connecting rod; 43. Contact rod; 44. Guide rod; 45. Connecting spring; 46. Limiting rod;

[0028] 51. Double-acting screw; 52. Cylinder;

[0029] 61. Limiting shaft; 62. Limiting spring; 63. Limiting groove; 64. Limiting post; 65. Limiting groove; 66. Sliding shaft; 67. Sliding groove;

[0030] 71. Connecting block; 72. Connecting groove; 73. Fixing rod; 74. Fixing groove. Detailed Implementation

[0031] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0032] like Figures 1 to 5 As shown in the figure, an optical linear sorting machine provided by this utility model includes a sorting table 1, a vibrating plate 2 and a conveyor belt 3 disposed on the surface of the sorting table 1, an optical camera fixedly connected inside the sorting table 1, and a guiding mechanism disposed between the sorting table 1 and the conveyor belt 3. The guiding mechanism includes:

[0033] A guide block 41 is fixedly installed on the surface of the screening table 1. Two connecting rods 42 are slidably connected inside the guide block 41. A synchronization component is provided between the two connecting rods 42 and the guide block 41 to drive the two connecting rods 42 to move towards each other. A contact rod 43 is fixedly connected to the end of the connecting rod 42. The midpoint of the contact rod 43 is located on the same vertical plane as the center of the optical camera.

[0034] Two guide rods 44 are rotatably mounted on one end of the contact rod 43 near the vibrating plate 2. The two contact rods 43 and the guide rods 44 are symmetrically arranged relative to the conveyor belt 3. A limit component is provided between the guide rods 44 and the contact rods 43 to limit the angle of the guide rods 44. A connecting spring 45 is fixedly provided between the guide rods 44 and the contact rods 43.

[0035] A limiting rod 46 is slidably disposed on the surface of the conveyor belt 3, and the surface of the limiting rod 46 is in contact with the end of the contact rod 43 away from the vibrating plate 2; the limiting rod 46 is perpendicular to the contact rod 43.

[0036] In summary, the optical linear sorting machine provided by this utility model embodiment includes contact rods 43 slidably disposed on both sides of a conveyor belt 3. The distance between the contact rods 43 limits the position of the optical rod or headless screw on the surface of the conveyor belt 3. Furthermore, the midpoint of the contact rod 43 is located on the same vertical plane as the center of the optical camera. This allows for a direct view of the optical camera's shooting range through the contact rods 43, facilitating control of the movement of the conveyor belt 3 and the object. Additionally, a sliding limiting rod 46 is also provided on the surface of the conveyor belt 3. The limiting rod 46 is perpendicular to the contact rods 43. After the limiting rod 46 slides and engages with the two contact rods 43, the limiting rod 46 and the contact rods 43... A C-shaped area is formed between the two contact rods. The limiting rod 46 can prevent the optical rod or headless screw from continuing to move on the surface of the conveyor belt 3, ensuring that the optical camera will not take pictures of the optical rod or headless screw. At the same time, a rotating guide rod 44 is set at the end of the contact rod 43 away from the limiting rod 46. The guide rod 44 guides the optical rod or headless screw to slide between the two contact rods 43, preventing the conveyor belt 3 from being vibrated and causing the optical rod or headless screw to deviate from the track and have difficulty entering the space between the two contact rods 43. The limiting rod 46, the contact rod 43 and the guide rod 44 limit the optical rod or headless screw to be detected to be within the shooting area, ensuring the shooting of the optical camera.

[0037] In some specific implementations, the synchronization component includes a bidirectional screw 51 rotatably disposed inside the guide block 41, the bidirectional screw 51 being threadedly connected to two connecting rods 42; rotating the bidirectional screw 51 can drive the two connecting rods 42 to move towards each other, ensuring that the two connecting rods 42 are always in a symmetrical state;

[0038] In a further embodiment, the guide block 41 has a U-shaped cross-section and is horizontally inserted inside the conveyor belt 3; by setting the guide block 41, the conveyor belt 3 at this position can be supported, ensuring that the surface of the transmission belt contacts the contact rod 43.

[0039] In some specific implementations, the limiting component includes a limiting shaft 61 slidably disposed inside the guide rod 44, a limiting spring 62 fixedly connected between the limiting shaft 61 and the guide rod 44, a limiting groove 63 formed on the surface of the contact rod 43, the limiting groove 63 being adapted to the limiting shaft 61, a limiting post 64 fixedly connected to the surface of the limiting shaft 61, and a plurality of limiting grooves 65 formed on the surface of the contact rod 43, the plurality of limiting grooves 65 communicating with the limiting groove 63 and arranged in a circular array at the edge of the limiting groove 63, the limiting grooves 65 being adapted to the limiting post 64; the sliding limiting shaft 61, the limiting post 64 on the surface of the limiting shaft 61 being adapted to the limiting groove 65 on the surface of the contact rod 43, sliding the limiting shaft 61, can cause the limiting post 64 to disengage from the limiting groove 65, and rotating the limiting shaft 61 can drive the guide rod 44 to rotate, releasing the limiting shaft 61, the limiting shaft 61 will reset under the action of the limiting spring 62, quickly adjusting the angle of the guide rod 44;

[0040] In a further embodiment, a sliding shaft 66 is fixedly connected to the surface of the limiting shaft 61, and a sliding groove 67 is provided inside the guide rod 44. The sliding shaft 66 is adapted to the sliding groove 67, and the sliding groove 67 is a semi-open groove.

[0041] In some specific implementations, both ends of the connecting spring 45 are fixedly connected to connecting blocks 71, the surface of the connecting rod 42 is fixedly connected to a base rod, and the surfaces of the base rod and the guide rod 44 are both provided with connecting grooves 72, and the connecting blocks 71 are adapted to the connecting grooves 72;

[0042] In a further embodiment, the guide rod 44 has an inner groove on its surface, and a connecting post is rotatably connected to the surface of a single connecting block 71. The connecting post is adapted to the inner groove. The connecting post is rotatably disposed inside the inner groove, so that when the angle between the guide rod 44 and the connecting rod 42 changes, the position of the connecting spring 45 can be changed accordingly, ensuring that the guide rod 44 can be reset after rotating under the action of the bare rod or the headless screw.

[0043] In a further embodiment, each of the connecting blocks 71 is slidably connected with a fixing rod 73, and the guide rod 44 and the base rod are provided with a plurality of fixing grooves 74, and the fixing rod 73 is adapted to the fixing grooves 74;

[0044] In some specific implementations, a cylinder 52 is fixedly connected to the surface of the screening table 1, and the end of the piston rod inside the cylinder 52 is fixedly connected to the end of the limiting rod 46.

[0045] The working principle of this utility model:

[0046] Before screening the bare rod or headless screw through the device, first adjust the distance between the two connecting rods 42 and the angle of the guide rod 44 according to the length and other dimensions of the bare rod or headless screw; first rotate the bidirectional screw 51 to make the two connecting rods 42 slide, which will drive the contact rod 43 to slide. After the distance between the two contact rods 43 is appropriate, stop rotating the bidirectional screw 51, then slide the limit shaft 61 to make the fixing rod 73 disengage from the fixing groove 74, and then rotate the guide rod 44. After the angle of the guide rod 44 is determined, reset it and insert the fixing rod 73 into the fixing groove 74, and then reset the limit shaft 61.

[0047] In use, the bare rod or headless screw first contacts the guide rod 44. Under the guidance of the guide rod 44, it slides between the two contact rods 43. The control cylinder 52 pushes the limit rod 46, causing the surface of the limit rod 46 to fit with the two contact rods 43, and the image is captured by the optical camera.

[0048] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An optical linear sorting machine, characterized in that, The system includes a screening table (1), on which a vibrating plate (2) and a conveyor belt (3) are provided. An optical camera is fixedly connected inside the screening table (1). A guiding mechanism is provided between the screening table (1) and the conveyor belt (3). The guiding mechanism includes: A guide block (41) is fixedly installed on the surface of the screening table (1). Two connecting rods (42) are slidably connected inside the guide block (41). A synchronization component is provided between the two connecting rods (42) and the guide block (41). A contact rod (43) is fixedly connected to the end of the connecting rod (42). Two guide rods (44) are rotatably mounted on one end of the contact rod (43) near the vibrating plate (2). The two contact rods (43) and the guide rods (44) are symmetrically arranged relative to the conveyor belt (3). A limit assembly is provided between the guide rods (44) and the contact rods (43). A connecting spring (45) is fixedly provided between the guide rods (44) and the contact rods (43). A limiting rod (46) is slidably disposed on the surface of the conveyor belt (3) and is perpendicular to the contact rod (43).

2. The optical linear sorting machine as described in claim 1, characterized in that, The synchronization component includes a bidirectional screw (51) rotatably disposed inside the guide block (41), the bidirectional screw (51) being threadedly connected to two connecting rods (42).

3. The optical linear sorting machine as described in claim 1, characterized in that, The guide block (41) has a U-shaped cross-section and is horizontally inserted inside the conveyor belt (3).

4. The optical linear sorting machine as described in claim 1, characterized in that, The limiting component includes a limiting shaft (61) slidably disposed inside the guide rod (44), a limiting spring (62) fixedly connected between the limiting shaft (61) and the guide rod (44), and a limiting groove (63) formed on the surface of the contact rod (43), the limiting groove (63) being adapted to the limiting shaft (61).

5. An optical linear sorting machine as described in claim 4, characterized in that, The limiting shaft (61) is fixedly connected to the limiting post (64), and the contact rod (43) has a plurality of limiting grooves (65) on its surface. The plurality of limiting grooves (65) are connected to the limiting grooves (63) and are arranged in a ring array at the edge of the limiting grooves (63). The limiting grooves (65) are adapted to the limiting post (64).

6. An optical linear sorting machine as described in claim 4, characterized in that, The limiting shaft (61) is fixedly connected to a sliding shaft (66), and the guide rod (44) has a sliding groove (67) inside, and the sliding shaft (66) is adapted to the sliding groove (67).

7. An optical linear sorting machine as described in claim 1, characterized in that, Both ends of the connecting spring (45) are fixedly connected to connecting blocks (71), and the surface of the connecting rod (42) is fixedly connected to a base rod. The surfaces of the base rod and the guide rod (44) are both provided with connecting grooves (72), and the connecting blocks (71) are adapted to the connecting grooves (72).

8. An optical linear sorting machine as described in claim 7, characterized in that, The guide rod (44) has an inner groove on its surface, and a connecting post is rotatably connected to the surface of a single connecting block (71), and the connecting post is adapted to the inner groove.

9. An optical linear sorting machine as described in claim 7, characterized in that, The connecting block (71) is slidably connected with a fixing rod (73), and the guide rod (44) and the base rod are provided with a number of fixing grooves (74), and the fixing rod (73) is adapted to the fixing groove (74).

10. An optical linear sorting machine as described in claim 1, characterized in that, A cylinder (52) is fixedly connected to the surface of the screening table (1), and the end of the piston rod inside the cylinder (52) is fixedly connected to the end of the limiting rod (46).

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