Detection device for plastic pipe fitting

Abstract

The utility model relates to a detection device, in particular to a detection device for a plastic pipe fitting. According to the technical scheme, the detection device for the plastic pipe fitting comprises a protection frame, rollers, a conveying belt, a first belt and the like, the rollers are rotationally connected to the two sides of the protection frame, the conveying belt is connected between the two rollers in a winding mode, and the conveying belt is located between the inner side walls of the protection frame; the first belts are connected between the front ends and the rear ends of the two rollers in a winding mode. The guide rods and the convex rods are indirectly driven to rotate anticlockwise through clockwise rotation of the motor, the convex rods downwards abut against the right ends of the limiting rods, the push plate makes arc motion in the anticlockwise direction, the plastic pipes are pushed to the position between the tops of the two material guide plates, and then the plastic pipes continue to rotate and slide to the conveying belt through inertia. Therefore, the effects of automatic feeding and detection are achieved.

Description

Technical Field

[0001] This utility model relates to a testing device, and more particularly to a testing device for plastic pipe fittings. Background Technology

[0002] Plastic pipe fittings are an important component of piping systems used to connect and transport fluids (such as water, gas, and chemical liquids), and are typically made of various types of plastic materials. Testing equipment for plastic pipe fittings is usually designed to ensure that their quality meets standards, including checks on dimensions, shape, surface defects, and wall thickness uniformity.

[0003] Patent CN218822137U discloses a testing device for plastic pipe fittings. This patent uses multiple shafts mounted on a mounting rod, with the pipe fitting fitted onto the shafts to limit its movement. Furthermore, a clamping structure further secures the pipe fitting, avoiding the need for manual one-handed fixing of the fitting while using calipers to measure its length. This results in more accurate length measurements, aiding in the subsequent calculation of the pipe's shrinkage rate. However, this patent still has shortcomings in practical use: it still relies on manual measurement with calipers and direct reading of length parameters, which may introduce errors and increases the risk of human error. For example, visual bias or distraction can affect the accuracy of the measurement data.

[0004] Therefore, it is necessary to design a testing device for plastic pipe fittings to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the above-mentioned background technology, the technical problem of this utility model is to provide a testing device for plastic pipe fittings.

[0006] The technical implementation scheme of this utility model is as follows: a detection device for plastic pipe fittings includes a protective frame, rollers, a conveyor belt, a belt, a motor, an optical sensor, and a display control unit. Rollers are rotatably connected to both sides of the protective frame, and a conveyor belt is wound between the two rollers. The conveyor belt is located between the inner side walls of the protective frame. A belt is wound between the front and rear ends of the two rollers. A motor is fixedly connected to one side of the protective frame, and the output shaft of the motor is fixedly connected to the front end of one of the rollers. An optical sensor is fixedly connected to one side of the protective frame, and a display control unit is fixedly connected to the top of the optical sensor. The display control unit is electrically connected to the motor and the optical sensor.

[0007] Optionally, it also includes a feeding platform, a guide plate, a support rod, a second belt, a first gear, a guide rod, a protruding rod, a limiting rod, and a push plate. The feeding platform is fixed to the left side of the protective frame, and guide plates are fixed to the inner walls of both sides of the protective frame. The support rod, guide rod, and limiting rod are rotatably connected to one side of the protective frame. The support rod is located to the right of the guide rod, and the limiting rod is located to the left of the guide rod. A second belt is wound around one end of the support rod and connected to the motor output shaft. A first gear is fixed to the other end of the support rod. A first gear is fixed to the middle of the guide rod. The two first gears mesh with each other. A protruding rod is fixed to the rear end of the guide rod. A push plate is rotatably connected to one end of the limiting rod. The first gear, the protruding rod, and the push plate are all located inside the protective frame and below the guide plate.

[0008] Optionally, it also includes a support plate and springs. The support plate is fixed between the inner walls on both sides of the protective frame. One side of the support plate is in close contact with the side of the push plate. Three springs are fixed in a linear array on one side of the support plate, and the top of each spring is fixed to the bottom of the push plate.

[0009] Optionally, it also includes gear two, gear three, cam and belt three. Gear two is fixedly connected to both ends of the left roller. Gear two and gear three are rotatably connected to the inner walls of both sides of the protective frame. Each gear three is located between two gear two on the same side and meshes with the two gear two respectively. Each gear two and gear three are in close contact with the inner wall of the protective frame. At least one cam is rotatably connected to the inner walls of both sides of the protective frame. Belt three is wound between every two adjacent cams on the same side, and the leftmost cam is fixedly connected to gear two on the same side.

[0010] Optionally, it also includes an electric slide rail, a slide rod, a hydraulic cylinder, and a gripper. An electric slide rail is fixedly connected to one side of the optical sensor, a slide rod is slidably connected to one side of the electric slide rail, a hydraulic cylinder is fixedly connected to one side of the slide rod, the hydraulic cylinder is electrically connected to the display control unit, and the gripper is fixedly connected to the piston of the hydraulic cylinder.

[0011] Optionally, the cam surface is fixed with raised patterns.

[0012] The present invention has the following advantages: 1. The present invention indirectly drives the guide rod and the protruding rod to rotate counterclockwise by rotating the motor clockwise. The protruding rod presses down against the right end of the limiting rod, causing the push plate to make an arc movement in the counterclockwise direction, and pushes the plastic tube between the top of the two guide plates. The plastic tube then continues to rotate by its own inertia and slides onto the conveyor belt, where it is detected by the optical sensor, thus achieving the effect of automatic feeding and detection.

[0013] 2. This utility model uses a limiting rod to precisely limit the push plate, and at the same time utilizes the elastic properties of the spring to pull the push plate downward when the spring contracts, ensuring that the push plate can quickly reset after disengaging from the protruding rod. This allows the push plate to quickly prepare for the next operation after each action, thereby achieving a continuous and intermittent feeding effect and improving the stability and reliability of the equipment operation.

[0014] 3. This utility model uses eight cams that rotate continuously clockwise. The convex patterns on the cams contact the plastic pipe and generate friction, causing the plastic pipe to flip. This ensures that the laser beam is evenly scattered in all parts of the plastic pipe, thereby enabling the display control unit to more accurately calculate the uniformity of the pipe wall thickness and significantly improving the accuracy of the detection data. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the roller, conveyor belt, and belt and other components of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the unloading platform, support rod, and protruding rod of this utility model.

[0018] Figure 4 This is a partial sectional view of the protective frame, push plate, and support plate of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including gear two, gear three, and the motor.

[0020] Figure 6 This is a three-dimensional structural diagram of the gear, cam, and belt components of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of gear 2, cam and belt 3 of this utility model.

[0022] Figure 8 This is a three-dimensional structural diagram of the components of this utility model, including the slide bar, hydraulic cylinder, and gripper.

[0023] In the attached diagram: 1: Protective frame, 2: Roller, 3: Conveyor belt, 4: Belt 1, 5: Motor, 6: Optical sensor, 7: Display control unit, 8: Unloading platform, 9: Guide plate, 10: Support rod, 11: Belt 2, 12: Gear 1, 13: Guide rod, 14: Protruding rod, 15: Limiting rod, 16: Push plate, 17: Support plate, 18: Spring, 19: Gear 2, 20: Gear 3, 21: Cam, 22: Belt 3, 23: Electric slide rail, 24: Slide rod, 25: Hydraulic cylinder, 26: Gripper. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0025] Example: A testing device for plastic pipe fittings, such as Figures 1-5 As shown, the system includes a protective frame 1, rollers 2, conveyor belt 3, belt 4, motor 5, optical sensor 6, display control unit 7, unloading platform 8, guide plate 9, support rod 10, belt 2 11, gear 12, guide rod 13, protruding rod 14, limit rod 15, and push plate 16. Rollers 2 are rotatably connected to both sides of the protective frame 1. A conveyor belt 3 is wound between the two rollers 2, located between the inner walls of the protective frame 1. Belt 4 is wound between the front and rear ends of the two rollers 2. A motor 5 is screwed to the front of the protective frame 1, and the output shaft of the motor 5 is keyed to the front end of the left roller 2. Optical sensors 6 are screwed between the front and rear sides of the top of the protective frame 1. A display control unit 7 is screwed to the rear top of the optical sensor 6. The element 7 is electrically connected to the motor 5 and the optical sensor 6. The left side of the protective frame 1 is connected to the unloading platform 8 by screws. The inner walls of the front and rear sides of the protective frame 1 are symmetrically connected to the guide plates 9 by screws. The front side of the protective frame 1 is rotatably connected to the support rod 10, the guide rod 13 and the limiting rod 15. The support rod 10 is located to the right of the guide rod 13 and the limiting rod 15 is located to the left of the guide rod 13. The front side of the support rod 10 is connected to the output shaft of the motor 5 by a belt 11. The rear side of the support rod 10 is keyed to the gear 12. The middle of the guide rod 13 is keyed to the gear 12. The two gears 12 mesh with each other. The rear end of the guide rod 13 is keyed to the protrusion rod 14. The rear end of the limiting rod 15 is rotatably connected to the push plate 16. The gear 12, the protrusion rod 14 and the push plate 16 are all located inside the protective frame 1 and below the guide plate 9.

[0026] like Figures 2-7As shown, it also includes a support plate 17, springs 18, gear 2 19, gear 3 20, cams 21, and belts 3 22. The support plate 17 is connected to the inner walls of the front and rear sides of the protective frame 1 by screws. The top of the support plate 17 is in close contact with the bottom of the push plate 16. Three springs 18 are welded in a straight array on the top of the support plate 17. The top of each spring 18 is welded to the bottom of the push plate 16. Gear 2 19 is keyed to both ends of the left roller 2. Gear 2 19 and gear 3 20 are rotatably connected to the inner walls of the front and rear sides of the protective frame 1. Each gear 3 20 is located between two gear 2 19 on the same side and meshes with the two gear 2 19 respectively. Each gear 2 19 and gear 3 20 are in close contact with the inner wall of the protective frame 1. Four cams 21 are rotatably connected to the inner walls of the front and rear sides of the protective frame 1. Belts 3 22 are wound around each pair of adjacent cams 21 on the same side. The leftmost cam 21 on each side is keyed to the gear 2 19 on the same side.

[0027] like Figures 1-2 and Figure 8 As shown, it also includes an electric slide rail 23, a slide rod 24, a hydraulic cylinder 25, and a gripper 26. The top right side of the optical sensor 6 is connected to the electric slide rail 23 by screws. The top of the electric slide rail 23 is slidably connected to the slide rod 24. The right side of the slide rod 24 is mounted with a hydraulic cylinder 25 by screws. The hydraulic cylinder 25 is electrically connected to the display control unit 7. The gripper 26 is connected to the piston of the hydraulic cylinder 25.

[0028] First, the device is placed horizontally in the designated work area. The operator manually places the plastic pipes to be inspected neatly on top of the unloading platform 8, ensuring the pipes are arranged in an orderly manner. At this time, the rightmost plastic pipe on the top of the platform is held in place by the left sides of the two guide plates 9, preventing it from rolling directly into the conveyor belt 3. Next, the operator starts the motor 5, hydraulic cylinder 25, and electric slide rail 23 via the display control unit 7. When the motor 5 is working, its output shaft drives the left roller 2 to rotate clockwise. Under the action of the belt 4, both rollers 2 rotate clockwise at a consistent speed, thereby driving the conveyor belt 3 to run smoothly and maintain a certain tension. Simultaneously, Driven by belt 11, support rod 10 and gear 12 on the right side rotate clockwise, while gear 12 in the middle of guide rod 13 rotates counterclockwise, causing convex rod 14 to rotate continuously counterclockwise. When convex rod 14 rotates counterclockwise and contacts limit rod 15, convex rod 14 presses down against the right end of limit rod 15, causing limit rod 15 to tilt, which in turn drives push plate 16 to make a counterclockwise arc movement. At the same time, spring 18 is stretched. When convex rod 14 moves to the lowest point, push plate 16 reaches the highest point and contacts the bottom of plastic pipe, lifting it upward and to the right, causing plastic pipe to be pushed to the two guide rods. Between the top of the material plate 9, the plastic tube continues to rotate and slide onto the conveyor belt 3 due to inertia. During this process, the next plastic tube replaces the previous one, waiting to be pushed. This cycle repeats, with each plastic tube intermittently fed into the conveyor belt 3 at certain intervals for subsequent inspection. When the protruding rod 14 disengages from the plastic tube, the push plate 16 resets under the action of the limiting rod 15. At the same time, the spring 18 rebounds and pulls the push plate 16 downward, causing the bottom of the push plate 16 to re-contact the support plate 17 and be received by the support plate 17. When the plastic tube is conveyed to the right to below the optical sensor 6, the optical... Sensor 6 performs comprehensive inspection of the plastic pipe. Specifically, optical sensor 6 emits a light beam through an infrared light source, which passes through one end of the pipe. The time difference between the emission and reception of the light beam is measured to calculate the length of the pipe. Optical sensor 6 also scans the cross-section of the pipe with a laser beam to measure the beam obstruction range and calculate the pipe diameter. At the same time, when the laser beam passes through the pipe wall, the attenuation or scattering of the beam is used to determine whether the pipe wall thickness is uniform. If all values ​​are within the acceptable range, the plastic pipe is deemed to meet the standard and continues to be transported to the container prepared by the staff.

[0029] When the test results show that the relevant values ​​of the plastic pipe do not meet the standards, the display control unit 7 will display the corresponding data and command the hydraulic cylinder 25 and the electric slide rail 23 to work together. At this time, the piston of the hydraulic cylinder 25 extends downward, causing the two jaws of the gripper 26 to extend outward to their limit. At this time, the unqualified plastic pipe is located in the middle of the gripper 26. When the piston of the hydraulic cylinder 25 retracts upward, the two jaws of the gripper 26 move inward, clamping the plastic pipe and suspending it. Then, the electric slide rail 23 drives the slide rod 24 to move forward, moving the hydraulic cylinder 25, the gripper 26 and the plastic pipe forward in sync. When the slide rod 24 moves forward to its limit position, the hydraulic cylinder 25 works again, the piston extends downward, causing the gripper to release the plastic pipe and let it fall into another container. Finally, the piston of the hydraulic cylinder 25 retracts upward, and the electric slide rail 23 drives the slide rod 24, the hydraulic cylinder 25 and the gripper 26 back to the initial position, ready for the next round of gripping.

[0030] When both rollers 2 rotate clockwise, the front and rear ends of the left roller 2 drive the two left gears 219 to rotate clockwise, causing the two right gears 20 to rotate counterclockwise. The two right gears 219 rotate clockwise. Driven by the three belts 322 on the front and rear sides, the eight cams 21 rotate clockwise continuously. When the convex grooves on the cams 21 come into contact with the plastic pipe, friction is generated between them, causing the plastic pipe to flip. This ensures that the laser beam can be scattered in all parts of the pipe wall. This helps the display control unit 7 to calculate the uniformity of the plastic pipe wall more accurately and improve the accuracy of the detection data.

[0031] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A detection device for plastic pipe fittings, characterized by: The utility model provides a kind of automatic feeding device, including protective frame (1), cylinder (2), conveying belt (3), belt one (4), motor (5), optical sensor (6) and display control unit (7), both sides of protective frame (1) are rotatably connected with cylinder (2), two cylinders (2) are woundly connected with conveying belt (3) between, conveying belt (3) is between the inside wall between protective frame (1), two cylinders (2) front and back both ends are woundly connected with belt one (4), protective frame (1) one side is fixed with motor (5), motor (5) output shaft and one side of cylinder (2) front end are fixedly connected, protective frame (1) one side is fixed with optical sensor (6), optical sensor (6) top is fixedly connected with display control unit (7), display control unit (7) and motor (5) and optical sensor (6) electric connection.

2. A device for testing plastic pipe fittings according to claim 1, characterised in that: It also includes a blanking table (8), a guide plate (9), a support rod (10), a belt two (11), a gear one (12), a guide rod (13), a convex rod (14), a limiting rod (15) and a push plate (16), the left side of the protective frame (1) is fixedly connected with the blanking table (8), the inner walls of the two sides of the protective frame (1) are fixedly connected with the guide plates (9), the left side of the protective frame (1) is rotatably connected with the support rod (10), the guide rod (13) and the limiting rod (15), the support rod (10) is located to the right of the guide rod (13), the limiting rod (15) is located to the left of the guide rod (13), the support rod (10) is woundly connected with the belt two (11) between one end and the output shaft of the motor (5), the other end of the support rod (10) is fixedly connected with the gear one (12), the middle of the guide rod (13) is fixedly connected with the gear one (12), the two gears one (12) are meshed with each other, the rear end of the guide rod (13) is fixedly connected with the convex rod (14), the one end of the limiting rod (15) is rotatably connected with the push plate (16), the gear one (12), the convex rod (14) and the push plate (16) are located inside the protective frame (1), and are located below the guide plates (9).

3. A device for testing plastic pipe fittings according to claim 2, characterised in that: It also includes a supporting plate (17) and a spring (18), the inner walls between the two sides of the protective frame (1) are fixedly connected with the supporting plate (17), one side of the supporting plate (17) is in close contact with one side of the push plate (16), one side of the supporting plate (17) is linearly arrayed with three springs (18), and the top of each spring (18) is fixedly connected with the bottom of the push plate (16).

4. A device for testing plastic pipe fittings according to claim 3, characterised in that: It also includes a gear two (19), a gear three (20), a cam (21) and a belt three (22), both ends of the left cylinder (2) are fixedly connected with the gear two (19), the inner walls of the two sides of the protective frame (1) are rotatably connected with the gear two (19) and the gear three (20), each gear three (20) is located between the two gear two (19) on the same side, and is meshed with the two gear two (19) respectively, each gear two (19) and gear three (20) are in close contact with the inner walls of the protective frame (1), the inner walls of the two sides of the protective frame (1) are rotatably connected with at least one cam (21), each adjacent two cams (21) on the same side are woundly connected with the belt three (22), and the leftmost cam (21) is fixedly connected with the gear two (19) on the same side.

5. A device for testing plastic pipe fittings according to claim 4, characterised in that: Electric slide rail (23), slide rod (24), hydraulic cylinder (25) and grab (26) are further included, the optical sensor (6) is fixed on one side of the electric slide rail (23), the electric slide rail (23) is slidably connected on one side of the slide rod (24), the slide rod (24) is fixed on one side of the hydraulic cylinder (25), the hydraulic cylinder (25) is electrically connected with the display control unit (7), the piston of the hydraulic cylinder (25) is fixed with the grab (26).

6. A device for testing plastic pipe fittings according to claim 5, characterized in that: The surface of the cam (21) is fixed with a convex pattern.

Images