An online wire diameter detector

Abstract

This utility model relates to the field of wire diameter detector technology, and in particular to an online wire diameter detector, comprising a laser scanning head with a detection port, a detection controller and a base plate, a base below the base plate, an extruder and a vacuum forming water tank on the base, a die head at the right end of the extruder, a bracket and a support leg on the base, a cylinder on the bracket, a cutter on the cylinder, an adhesive seat on the support leg, a top cover on the adhesive seat, ribs and a main column on the base plate, a main plate and an anti-sway plate on the main column, a mounting plate on the anti-sway plate, longitudinal columns and transverse columns on the anti-sway plate, and a scratch-resistant layer on the top cover. This invention improves the impact and vibration resistance of the laser scanning head on the detector for measuring the outer diameter of PVC conduit, provides comprehensive protection for the laser scanning head and the detection controller, and enhances the wear resistance, scratch resistance and durability of the outer wall of the top cover.

Description

Technical Field

[0001] This utility model relates to the field of wire diameter detector technology, and in particular to an online wire diameter detector. Background Technology

[0002] PVC conduit is a piping system widely used in building electrical installations.

[0003] During the extrusion molding process of PVC conduit, the outer diameter of the conduit needs to be monitored in real time by an online wire diameter detector to ensure that the outer diameter meets the design requirements. Therefore, a detector for measuring the outer diameter of PVC conduit is required.

[0004] The specific working principle is as follows: after the PVC conduit is extruded from the die, it immediately enters the vacuum forming water tank for cooling. When the PVC conduit extends out of the vacuum forming water tank, a high-speed rotating multifaceted prism is installed inside the preset laser scanning head. This prism emits a parallel scanning laser fan that sweeps across the PVC conduit being tested at high speed and continuously. When the scanning laser beam passes over the pipe, it is partially blocked by the pipe. The laser beam takes a certain amount of time from contacting the edge of the pipe (point A) to leaving the other edge (point B). The instrument contains an extremely precise clock that accurately measures this time (Δt) during which the laser beam is blocked. It is known that the angular velocity (ω) of the laser scanning is constant. According to the simple physical formula (outer diameter D = scanning speed (V) × ... By calculating the time (Δt), the outer diameter of the pipe at that scanning angle can be directly calculated. Then, the laser scanning head will transmit the obtained outer diameter of the current PVC conduit to the detection controller online via a signal line. The outer diameter value will then be displayed on the screen of the detection controller. If the outer diameter of the current PVC conduit does not conform to the preset outer diameter value on the detection controller, the preset alarm will sound an alarm in time. At this time, the operator will shut down the extruder and then adjust the extrusion speed and other parameters of the extruder.

[0005] Currently, in existing detectors for measuring the outer diameter of PVC conduits, the laser scanning head and the detection controller are both located at the top of the support. Because the laser scanning head has a heavy laser inside its outer shell, combined with the weight of the outer shell and the detection controller, the overall structure becomes top-heavy. During production, the upper laser scanning head may wobble, affecting the accuracy of measuring the outer diameter of PVC conduits and significantly reducing the impact and vibration resistance of the laser scanning head on the detector.

[0006] In addition, the laser scanning head and detection controller of existing detectors for measuring the outer diameter of PVC conduits are easily damaged by collisions with foreign objects.

[0007] Therefore, we designed a detector for measuring the outer diameter of PVC conduit to meet the needs of practical applications. Utility Model Content

[0008] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing an online wire diameter detector.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] Design an online wire diameter detector, including a laser scanning head with a detection port, a detection controller and a base plate on the laser scanning head, a base below the base plate, an extruder and a vacuum forming water tank on the base, a die head at the right end of the extruder, an outlet cylinder on the vacuum forming water tank, a bracket and a support leg on the base, a cylinder on the bracket, a cutter on the cylinder, an adhesive seat on the support leg, a top cover on the adhesive seat, a rib plate and a main column on the base plate, a main plate and an anti-sway plate on the main column, and a mounting plate on the anti-sway plate.

[0011] The anti-sway plate is provided with longitudinal and transverse columns;

[0012] The top cover is provided with a scratch-resistant layer, and the mounting plate is provided with bolts.

[0013] In detail, the mold head is connected to the left end of the vacuum setting water tank, and the outlet cylinder is located at the right end of the vacuum setting water tank and is horizontally aligned with the detection port.

[0014] In detail, the anti-sway plate consists of four circumferentially arranged plates with an angle of forty degrees to the horizontal plane, and the mounting plate is fixed to the base by bolts and threads.

[0015] In detail, the mounting plate has a cross-shaped structure, with the two ends of the longitudinal column located between the anti-sway plate and the base plate, and the two ends of the transverse column located between the mounting plate and the main plate.

[0016] In detail, the lateral dimension of the top cover is not less than the lateral dimension of the laser scanning head and the detection controller, and the top cover is an arc-shaped structure.

[0017] In detail, the adhesive base is provided with a screw, which passes vertically through the adhesive base and is threadedly connected to the support leg.

[0018] In detail, the scratch-resistant layer is uniformly disposed along the upper surface of the top cover, and the scratch-resistant layer is a nano-silicate coating structure with a thickness of six to eight micrometers.

[0019] The design scheme proposed in this utility model has the following beneficial effects in application:

[0020] 1. This utility model provides stable support and anti-sway for the laser scanning head and detection controller by setting a cross-shaped mounting plate, along with longitudinal and transverse columns, and triangular ribs. This effectively avoids the top-heavy situation caused by the heavy laser and detection controller inside the outer shell of the laser scanning head, thus ensuring the detection accuracy of the outer diameter of PVC conduit and greatly improving the impact and shaking resistance of the laser scanning head on the detector for measuring the outer diameter of PVC conduit.

[0021] 2. This utility model provides comprehensive protection for the laser scanning head and detection controller by setting a top cover with an adhesive base and installing support legs and screws on the adhesive base, effectively preventing the laser scanning head and detection controller from being easily damaged by collisions with external objects. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the top cover of this utility model in its unwelded and fixed state;

[0023] Figure 2 For the present utility model Figure 1 A three-dimensional schematic diagram of a laser scanning head with an anti-sway plate;

[0024] Figure 3 This is a three-dimensional schematic diagram of the top cover of this utility model in a welded and fixed state;

[0025] Figure 4 For the present utility model Figure 1 A three-dimensional schematic diagram of the top cover with a scratch-resistant layer;

[0026] Figure 5 For the present utility model Figure 3 A three-dimensional schematic diagram without a top cover.

[0027] In the diagram: 1. Laser scanning head; 11. Detection port; 12. Detection controller; 2. Base; 21. Extruder; 22. Die head; 3. Vacuum shaping water tank; 31. Outlet tube; 4. Bracket; 41. Cylinder; 42. Cutting blade; 5. Top cover; 50. Scratch-resistant layer; 51. Adhesive base; 511. Screw; 52. Support leg; 6. Base plate; 61. Rib plate; 7. Main column; 71. Main board; 8. Anti-sway plate; 81. Longitudinal column; 82. Horizontal column; 9. Mounting plate; 91. Bolt. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figures 1-5An online wire diameter detector includes a laser scanning head 1, a detection port 11 on the laser scanning head 1, a detection controller 12 and a base plate 6 on the laser scanning head 1, a base 2 below the base plate 6, an extruder 21 and a vacuum forming water tank 3 on the base 2, a die head 22 at the right end of the extruder 21, an outlet cylinder 31 on the vacuum forming water tank 3, a bracket 4 and a support leg 52 on the base 2, a cylinder 41 on the bracket 4, a cutting blade 42 on the cylinder 41, an adhesive seat 51 on the support leg 52, a top cover 5 on the adhesive seat 51, a rib plate 61 and a main column 7 on the base plate 6, a main plate 71 and an anti-sway plate 8 on the main column 7, and a mounting plate 9 on the anti-sway plate 8.

[0030] The anti-sway plate 8 is equipped with longitudinal columns 81 and transverse columns 82;

[0031] The top cover 5 is provided with a scratch-resistant layer 50, and the mounting plate 9 is provided with bolts 91. The laser scanning head 1, detection controller 12, extruder 21, vacuum shaping water tank 3, and cutting blade 42 described in this patent are all related structural equipment used for PVC conduit production and online outer diameter detection. They are existing technologies, and some existing structures are not drawn or labeled, so there is no need to elaborate.

[0032] The triangular ribs 61 improve the stability between the metal housing of the laser scanning head 1 and the base plate 6.

[0033] It should be further explained that the die head 22 is connected to the left end of the vacuum forming water tank 3, and the outlet cylinder 31 is located at the right end of the vacuum forming water tank 3 and is horizontally aligned with the detection port 11, so that the extruded PVC conduit can just enter the detection port 11 for subsequent online detection of the outer diameter.

[0034] It should be further noted that the anti-sway plates 8 are four arranged in a circle with an angle of 40 degrees to the horizontal plane, and the mounting plate 9 is fixed to the base 2 by bolts 91 to achieve stable support for the four sides of the laser scanning head 1.

[0035] It should be further noted that the mounting plate 9 has a cross-shaped structure, and then the connection between the mounting plate 9 and the base 2 is improved by four bolts 91 in each group.

[0036] The two ends of the longitudinal column 81 are located between the anti-sway plate 8 and the base plate 6, forming a triangular stable inner cavity between the longitudinal column 81, the anti-sway plate 8, and the base plate 6, which improves the structural stability.

[0037] The two ends of the horizontal column 82 are located between the mounting plate 9 and the main plate 71. The horizontal column 82, the main column 7, and the anti-sway plate 8 form a triangular stable inner cavity, which improves the structural stability.

[0038] It should be further noted that the lateral dimension of the top cover 5 is not less than the lateral dimension of the laser scanning head 1 and the detection controller 12, so as to achieve comprehensive and effective protection for the laser scanning head 1 and the detection controller 12.

[0039] The top cover 5 has an overall arc-shaped structure and is made of transparent PVC material, which has excellent impact resistance.

[0040] It should be further explained that the adhesive base 51 is provided with a screw 511. The screw 511 passes vertically through the adhesive base 51 and is threadedly connected to the support leg 52. The adhesive base 51 and the top cover 5 are firmly bonded together with epoxy resin. Later, if it is necessary to input the relevant detection outer diameter value through the preset button on the detection controller 12, first turn the screw 511 counterclockwise and remove it. Then the top cover 5 can be easily removed from the support leg 52 to expose the detection controller 12.

[0041] It should be further noted that the scratch-resistant layer 50 is uniformly arranged along the upper surface of the top cover 5. The scratch-resistant layer 50 is a nano-silicate coating structure with a thickness of six to eight micrometers. The nano-silicate coating has excellent wear and scratch resistance and is transparent. Combined with the transparent top cover 5, the operator can directly observe the working status of the laser scanning head 1 in real time through the top cover 5. At the same time, it improves the wear and scratch resistance and durability of the outer wall of the top cover 5.

[0042] Working principle: After the PVC conduit is extruded from the die 22 at the right end of the extruder 21, it immediately enters the vacuum shaping water tank 3 for cooling.

[0043] Then, the cooled PVC conduit extends from the outlet 31 at the right end of the vacuum shaping water tank 3 and enters the detection port 11. At this time, the preset laser scanning head 1 is equipped with a high-speed rotating multifaceted prism, which emits a parallel scanning laser fan that sweeps across the PVC conduit being tested at high speed and continuously. When the scanning laser beam sweeps across the pipe, it will be partially blocked by the pipe. The laser beam will take a period of time from contacting the edge of the pipe (point A) to leaving the other edge (point B). The instrument has an extremely precise clock that accurately measures the time (Δt) during which the laser beam is blocked. It is known that the angular velocity (ω) of the laser scanning is constant. According to the simple physical formula (outer diameter D = scanning speed (V) × ... The outer diameter of the pipe at the scanning angle can be directly calculated by the time (Δt). Then, the laser scanning head 1 will transmit the obtained outer diameter of the PVC conduit to the detection controller 12 online through the signal line. The outer diameter value will then be displayed on the display screen of the detection controller 12. If the outer diameter of the PVC conduit does not conform to the preset outer diameter value on the detection controller 12, the preset alarm will sound an alarm in time. At this time, the operator will shut down the extruder and adjust the extrusion speed and other parameters of the extruder 21. Later, one hand holds the rightmost end of the PVC conduit, and then the cylinder 41 is started to drive the cutter 42 to move downward quickly and cut off a certain length of the PVC conduit body (all of the above are existing technologies).

[0044] By setting a cross-shaped mounting plate 9 as an anti-sway plate 8, and simultaneously setting a vertical column 81 and a horizontal column 82, and then setting a triangular rib plate 61, a stable support and anti-sway effect is achieved for the laser scanning head 1 and the detection controller 12 above. This effectively avoids the situation where the whole structure becomes top-heavy due to the weight of the laser and the detection controller 12 pre-set inside the outer shell of the laser scanning head 1. This ensures the detection accuracy of the outer diameter of PVC conduit and greatly improves the impact and shaking resistance of the laser scanning head 1 on the detector for measuring the outer diameter of PVC conduit.

[0045] Furthermore, the lower end of the support leg 52 with the top cover 5 is stably welded to the base 2. At this time, the arc-shaped top cover 5 can fully protect the laser scanning head 1 and the detection controller 12, effectively preventing the laser scanning head 1 and the detection controller 12 from being easily damaged by external objects.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wire diameter on-line detector comprising a laser scanning head (1), characterized in that: The laser scanning head (1) is provided with a detection port (11), and the laser scanning head (1) is provided with a detection controller (12) and a bottom plate (6), and the bottom plate (6) is provided with a base (2), and the base (2) is provided with an extruder (21) and a vacuum shaping water tank (3), and the right end of the extruder (21) is provided with a die head (22), and the vacuum shaping water tank (3) is provided with a barrel (31), and the base (2) is provided with a support (4) and a supporting leg (52), and the support (4) is provided with a cylinder (41), and the cylinder (41) is provided with a cutting knife (42), and the supporting leg (52) is provided with a sticking seat (51), and the sticking seat (51) is provided with a top cover (5), and the bottom plate (6) is provided with a rib plate (61) and a main column (7), and the main column (7) is provided with a main plate (71) and an anti-shaking plate (8), and the anti-shaking plate (8) is provided with a mounting plate (9); The anti-shaking plate (8) is provided with a longitudinal column (81) and a transverse column (82); The top cover (5) is provided with a scratch-resistant layer (50), and the mounting plate (9) is provided with a bolt (91).

2. An on-line wire diameter detector according to claim 1, characterized in that: The die head (22) is connected with the left end of the vacuum shaping water tank (3), and the barrel (31) is arranged at the right end of the vacuum shaping water tank (3) and is transversely aligned with the detection port (11).

3. An on-line wire diameter detector according to claim 1, characterized in that: The anti-shaking plate (8) is arranged in a circular manner and has an angle of forty degrees with the horizontal plane, and the mounting plate (9) is threadedly fixed to the base (2) by the bolt (91).

4. The on-line wire diameter detector of claim 1, wherein: The mounting plate (9) is in a cross-shaped structure, the longitudinal column (81) is arranged between the anti-shaking plate (8) and the bottom plate (6), and the transverse column (82) is arranged between the mounting plate (9) and the main plate (71).

5. The on-line wire diameter detector of claim 1, wherein: The transverse dimension of the top cover (5) is not less than that of the laser scanning head (1) and the detection controller (12), and the top cover (5) is in an arc-shaped structure.

6. An on-line wire diameter detector according to claim 1, characterized in that: The sticking seat (51) is provided with a screw (511), and the screw (511) vertically penetrates the sticking seat (51) and is threadedly connected with the supporting leg (52).

7. The on-line wire diameter detector of claim 1, wherein: The scratch-resistant layer (50) is uniformly arranged along the upper end surface of the top cover (5), and the scratch-resistant layer (50) is a nano-silicate coating structure and has a thickness of six to eight microns.

Images