Extruded profile length real-time monitoring and over-limit early warning device

Abstract

The utility model relates to the technical field of extrusion forming equipment, and particularly discloses an extruded profile length real-time monitoring and over-limit early warning device which comprises a supporting base which is of a T-shaped table body structure, a guide frame is fixedly installed at the upper end of the supporting base, the guide frame is of a trapezoidal structure, and the upper end of the supporting base is fixedly provided with a supporting rod. The guiding frame and the supporting base form a monitoring device main frame body. According to the extruded profile length real-time monitoring and over-limit early warning device, the laser range finders are symmetrically installed on the installation frame, the height of the detection end is flush with the height of the positioning ball and faces the guide roller, the length of a profile can be accurately measured, data are transmitted to the PLC in real time, meanwhile, the limiting sliding block, the connecting spring and the guide roller work cooperatively, the distance is adjusted in a self-adaptive mode, and the detection accuracy is improved. And a positioning structure formed by the limiting frame, the auxiliary frame and the positioning balls can effectively prevent the profile from deviating, so that a foundation is laid for accurate measurement, the length accuracy of products is greatly improved, and the defective rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of extrusion molding equipment technology, specifically a device for real-time monitoring and over-limit warning of the length of extruded profiles. Background Technology

[0002] In modern industrial production, extruded profiles are widely used in aerospace, automobile manufacturing, building decoration and other fields. The length of extruded profiles is one of the key indicators for measuring product quality. Its accuracy directly affects the smooth progress of subsequent processing steps and the performance and quality of the final product. With the continuous expansion of industrial production scale and the increasing requirements for product quality, it has become particularly important to achieve real-time monitoring and precise control of the length of extruded profiles.

[0003] Traditional monitoring methods rely on observing the sawing parameters on the control panel and manually sawing when the sawing length is incorrect. Furthermore, malfunctions of the moving saw are a common cause of uncontrolled profile length. In actual production, once the intermediate saw malfunctions, it will stop working. However, at this time, the traction machine often continues to pull the profile, causing it to be stretched continuously. Without any obstruction structure, this results in a large amount of material waste. Utility Model Content

[0004] The purpose of this utility model is to provide a real-time monitoring and over-limit warning device for the length of extruded profiles, in order to solve the problem mentioned in the background art that the traditional monitoring method relies on observing the sawing parameters of the operating table and manually sawing when the sawing length is incorrect. Moreover, the failure of the moving saw is a common factor causing the profile length to go out of control. In actual production, once the intermediate saw has a mechanical failure, it will stop working. However, at this time, the traction machine often continues to pull the profile, causing the profile to be continuously stretched. Without a blocking structure, this results in a large amount of material waste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a real-time monitoring and over-limit warning device for the length of extruded profiles, including a support base, which is a T-shaped platform structure. A guide frame is fixedly installed on the upper end of the support base, and the guide frame is configured as a trapezoidal structure. The guide frame and the support base constitute the main frame of the monitoring device.

[0006] One end of the T-shaped structure of the support base is close to the outlet of the extrusion profile traction machine, and a groove is opened on the surface of the T-shaped end of the support base. Two limiting sliders are slidably connected in the groove, and the upper end of the limiting slider is rotatably connected to the guide roller through the rod. A hydraulic lifting limiting platform is installed at the other end of the support base, and the top of the hydraulic lifting limiting platform passes through the guide frame.

[0007] Hydraulic columns are equidistantly arranged on both sides of the guide frame, and the hydraulic columns are vertically installed on the surface of the limiting frame. The limiting frame is slidably connected to the surface of the guide frame, and an auxiliary frame is engaged with the surface of the limiting frame. A positioning ball is rotatably connected to one end of the auxiliary frame. A mounting frame is engaged with the upper end of the limiting frame, and laser rangefinders are symmetrically installed at the bottom end of the mounting frame.

[0008] Using the above technical solution, the T-shaped support base is securely installed at the traction machine outlet, and the trapezoidal guide frame provides a high-strength support frame to ensure the overall structural stability.

[0009] Preferably, the upper end face of the guide frame is connected to the PLC controller by bolts, and there is a relay group on one side of the PLC controller. The PLC controller and the relay group are connected to the laser rangefinder and the hydraulic column by electrical signals.

[0010] Using the above technical solution, the PLC controller processes the laser rangefinder data in real time and precisely controls the hydraulic cylinder and alarm system through the relay group to achieve automated monitoring and early warning.

[0011] Preferably, one end of the limiting frame is adjacent to the guide roller, and the other end of the limiting frame is adjacent to the hydraulic lifting limiting platform.

[0012] Using the above technical solution, the two ends of the limiting frame are respectively adjacent to the guide roller and the hydraulic lifting limiting platform, forming a full-process monitoring area to avoid measurement blind spots.

[0013] Preferably, a positioning frame is engaged with the upper end of the limiting frame, and an audible and visual alarm is fixedly installed on the upper end of the positioning frame. The audible and visual alarm communicates with the PLC controller and the relay group via electrical signals.

[0014] The above technical solution facilitates installation and maintenance through the interlocking design of the positioning frame and the audible and visual alarm.

[0015] Preferably, the positioning ball and the auxiliary frame are in a U-shape, and the auxiliary frame is perpendicular to the surface of the limiting frame.

[0016] By adopting the above technical solution, the U-shaped structure of the positioning ball and the auxiliary frame achieves a circumferential positioning of the profile, reducing friction while preventing lateral displacement of the profile and improving measurement accuracy.

[0017] Preferably, a connecting spring is provided between the two limiting sliders, and the top of the limiting slider is flush with the bottom of the guide frame.

[0018] By adopting the above technical solution, the connecting spring enables the limit slider to have an elastic buffer function, adapt to the fluctuation of profile size, and avoid equipment damage or measurement errors caused by rigid collisions.

[0019] Preferably, the detection end of the laser rangefinder faces the guide roller, and the height of the detection end of the laser rangefinder is flush with the height of the positioning ball.

[0020] By adopting the above technical solution, the laser rangefinder and the positioning ball are set at the same height to ensure that the measuring beam is always aligned with the reference surface of the profile, eliminating the cosine error caused by the height difference and improving the measurement accuracy.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the real-time monitoring and over-limit warning device for the length of extruded profiles:

[0022] 1. In the device, laser rangefinders are symmetrically mounted on the mounting frame, with the detection end at the same height as the positioning ball and facing the guide roller. This allows for accurate measurement of the profile length and real-time transmission of the data to the PLC controller. Simultaneously, the limit slider, connecting spring, and guide roller work together to adaptively adjust the spacing and maintain stable tension in the profile. The positioning structure, consisting of the limit frame, auxiliary frame, and positioning ball, effectively prevents profile deviation, laying the foundation for accurate measurement, greatly improving product length accuracy, and reducing the defect rate.

[0023] 2. When the device is actually in use, by setting a length threshold in the PLC controller, when the data transmitted by the laser rangefinder exceeds the limit, the relay group will quickly trigger the audible and visual alarm to remind the operator. At the same time, the hydraulic lifting limit platform will be raised to stop the profile from moving further, thus avoiding material waste caused by the profile being too long and production accidents such as equipment failure caused by it, and ensuring the safe and stable operation of the production process.

[0024] 3. The device's support base and guide frame form a stable main frame. Components such as slides and hydraulic columns allow the device to flexibly adapt to different profile sizes. The hydraulic columns drive the limit frame to slide on the guide frame, which can quickly adjust its position to match the profile width. The limit slider slides in the slide groove and the spacing is adjusted by the connecting spring, which can quickly adapt to different profile sizes. The flexible adaptability reduces the adjustment time during production changeovers and improves the equipment's versatility and production efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;

[0026] Figure 2 A three-dimensional schematic diagram of the novel structure for installing the guide frame and hydraulic lifting limit platform in this practical application;

[0027] Figure 3 This is a three-dimensional structural diagram of the hydraulic column and limit frame installation of this utility model;

[0028] Figure 4 This is a schematic diagram of the overall internal side section of the present invention.

[0029] Figure 5 This is a schematic diagram of the overall internal three-dimensional structure of this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the guide frame and guide roller installation of this utility model.

[0031] In the diagram: 1. Support base; 2. Guide frame; 3. Hydraulic column; 4. Limit frame; 5. Auxiliary frame; 6. Positioning ball; 7. Slide groove; 8. Limit slider; 9. Connecting spring; 10. Guide roller; 11. Hydraulic lifting limit platform; 12. PLC controller; 13. Relay group; 14. Positioning frame; 15. Audible and visual alarm; 16. Mounting frame; 17. Laser rangefinder. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1-6 This utility model provides a technical solution: a real-time monitoring and over-limit warning device for the length of extruded profiles, including a support base 1, a guide frame 2, a hydraulic column 3, a limit frame 4, an auxiliary frame 5, a positioning ball 6, a slide groove 7, a limit slider 8, a connecting spring 9, a guide roller 10, a hydraulic lifting limit platform 11, a PLC controller 12, a relay group 13, a positioning frame 14, an audible and visual alarm 15, a mounting frame 16, and a laser rangefinder 17;

[0034] Among them, the support base 1 is a T-shaped platform structure, and the guide frame 2 is fixedly installed on the upper end of the support base 1. The guide frame 2 is set as a trapezoidal structure, and the guide frame 2 and the support base 1 constitute the main frame of the monitoring device.

[0035] One end of the T-shaped structure of the support base 1 is close to the outlet of the extrusion profile traction machine, and a groove 7 is opened on the surface of the T-shaped end of the support base 1. Two limit sliders 8 are slidably connected in the groove 7, and a guide roller 10 is rotatably connected to the upper end of the limit slider 8 through a rod. A connecting spring 9 is provided between the two limit sliders 8, and the top of the limit slider 8 is flush with the bottom of the guide frame 2. A hydraulic lifting limit platform 11 is installed at the other end of the support base 1, and the top of the hydraulic lifting limit platform 11 passes through the guide frame 2. The upper surface of the guide frame 2 is connected to the PLC controller 12 by bolts, and a relay group 13 is provided on one side of the PLC controller 12. The PLC controller 12 and the relay group 13 are connected to the laser rangefinder 17 and the hydraulic column 3 through electrical signals.

[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the support base 1 is installed near the outlet of the extrusion profile traction machine, the guide frame 2 is fixed, and a stable main frame is built. The limiting slider 8 is installed in the slide groove 7 of the support base 1, and the guide roller 10 is connected to the limiting slider 8. At the same time, the connecting spring 9 is installed between the two limiting sliders 8 to ensure that the guide roller 10 can flexibly adjust the spacing. In actual use, the two guide rollers 10 play a limiting and guiding role in the profile conveying.

[0037] Hydraulic columns 3 are installed on both sides of the guide frame 2, and the limiting frame 4 is connected to the hydraulic columns 3 so that it can slide on the guide frame 2. The auxiliary frame 5 is locked onto the limiting frame 4. Positioning balls 6 are installed at one end of the auxiliary frame 5 to form a positioning structure for the profile. When in use, the profile slides and is conveyed to one side between the positioning balls 6.

[0038] Mounting bracket 16 is installed on the upper end of limiting bracket 4. Laser rangefinders 17 are symmetrically installed at the bottom of mounting bracket 16, ensuring their detection end faces the guide roller 10 and is flush with the positioning ball 6. Finally, a PLC controller 12 and relay group 13 are installed on the upper surface of guide bracket 2. The circuits of laser rangefinder 17, hydraulic column 3, audible and visual alarm 15, and hydraulic lifting limiting platform 11 are connected. The standard length threshold for the profile is preset in the PLC controller 12. Based on actual production needs, the length values ​​corresponding to different profile specifications are set; these values ​​will serve as the basis for subsequent judgments on whether the profile exceeds the limit. Simultaneously, the alarm mode of the audible and visual alarm 15 is set, such as the frequency and volume of the sound, and the flashing pattern of the light, so that the operator can be clearly alerted in case of abnormalities.

[0039] Hydraulic columns 3 are equidistantly arranged on both sides of the guide frame 2, and the hydraulic columns 3 are vertically installed on the surface of the limit frame 4. One end of the limit frame 4 is adjacent to the guide roller 10, and the other end of the limit frame 4 is adjacent to the hydraulic lifting limit platform 11. The upper end of the limit frame 4 is engaged with the positioning frame 14, and the upper end of the positioning frame 14 is fixedly installed with an audible and visual alarm 15. The audible and visual alarm 15 is connected to the PLC controller 12 and the relay group 13 through an electrical signal. The limit frame 4 is slidably connected to the surface of the guide frame 2, and the surface of the limit frame 4 is engaged with the auxiliary frame 5. One end of the auxiliary frame 5 is rotatably connected with a positioning ball 6. The positioning ball 6 and the auxiliary frame 5 have a U-shaped structure, and the auxiliary frame 5 is vertical to the surface of the limit frame 4. The upper end of the limit frame 4 is engaged with the mounting frame 16, and the bottom end of the mounting frame 16 is symmetrically equipped with a laser rangefinder 17. The detection end of the laser rangefinder 17 faces the direction of the guide roller 10, and the height of the detection end of the laser rangefinder 17 is flush with the height of the positioning ball 6.

[0040] Referring to the attached diagrams in the instruction manual Figures 1-6As shown, the extruded profile enters the device from the traction machine outlet. The profile passes through two guide rollers 10 on the support base 1. During the process of the profile spreading the guide rollers 10, the connecting spring 9 assists the limiting slider 8 to slide in the slide groove 7, automatically adjusting the spacing of the guide rollers 10, so that the profile maintains stable tension during the conveying process, avoiding profile deformation or measurement errors caused by uneven tension. At the same time, the profile moves in the guide frame 2. The hydraulic column 3 drives the limiting frame 4 to slide on the guide frame 2 according to the width or position change of the profile. The auxiliary frame 5 engages with the limiting frame 4. Its U-shaped structure, together with the positioning ball 6, holds the two sides of the profile, reducing friction between the profile and the device, and ensuring that the profile is always in the center position, providing good conditions for accurate measurement.

[0041] The laser rangefinder 17, mounted on the mounting bracket 16, starts working with its detection end facing the profile port. It uses the laser ranging principle to monitor the length of the profile in real time. The laser rangefinder 17 continuously transmits the measured data to the PLC controller 12. During this process, since the laser rangefinder 17 is flush with the positioning ball 6 and the positioning ball 6 can ensure the stability of the profile position, the measurement of the laser rangefinder 17 is more accurate and reliable.

[0042] The PLC controller 12 continuously receives profile length data transmitted by the laser rangefinder 17 and compares it with a preset length threshold. Once the measured length reaches or exceeds the threshold, the PLC controller 12 immediately makes a judgment and determines that the profile length exceeds the limit. At this time, the PLC controller 12 triggers the audible and visual alarm 15 through the relay group 13 to issue an alarm. The dual prompts of sound and light attract the attention of the operator, enabling them to understand the abnormal situation that has occurred in the production process in a timely manner. At the same time, the relay group 13 controls the hydraulic lifting limit platform 11 to rise. The hydraulic lifting limit platform 11 rises rapidly and stops the profile from moving further in a very short time, effectively avoiding material waste and production accidents caused by excessive profile length, and realizing safety protection and precise control of the production process.

[0043] Working principle: When using the extruded profile length real-time monitoring and over-limit warning device, the extruded profile enters the device from the traction machine outlet. The profile passes through the two guide rollers 10 on the support base 1 and is spread out. At this time, the connecting spring 9 assists the limit slider 8 to slide in the slide groove 7. The spacing of the guide rollers 10 is adjusted by the connecting spring 9 to adapt to different profile sizes and maintain stable tension. When the profile moves in the guide frame 2, the hydraulic column 3 drives the limit frame 4 to slide on the guide frame to adjust the position to adapt to the profile width or position. The auxiliary frame 5 engages with the limit frame 4. Its U-shaped structure, together with the positioning ball 6, holds the two sides of the profile, reducing friction while ensuring that the profile is centered, which is convenient for accurate measurement.

[0044] The laser rangefinder 17 is mounted on the mounting bracket 16, with its detection end facing the guide roller 10 and flush with the positioning ball 6. The laser rangefinder 17 monitors the real-time length of the profile end and transmits the measured length data to the PLC controller 12. The PLC controller 12 presets a length threshold. When the measured length reaches or exceeds the threshold, the relay group 13 triggers the audible and visual alarm 15 to sound an alarm. At the same time, it controls the hydraulic lifting limit platform 11 to rise, preventing the profile from moving further. This achieves over-limit warning and control. All components work together to achieve real-time and accurate monitoring, over-limit warning, and action intervention of the extruded profile length, ensuring that the profile length meets the standard during production, avoiding material waste and production accidents, and increasing the overall practicality.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for real-time monitoring and over-limit warning of extruded profile length, comprising: The support base (1) is a T-shaped platform structure. A guide frame (2) is fixedly installed on the upper end of the support base (1). The guide frame (2) is set as a trapezoidal structure. The guide frame (2) and the support base (1) constitute the main frame of the monitoring device. The feature is that: one end of the T-shaped structure of the support base (1) is close to the outlet of the extrusion profile traction machine, and a groove (7) is opened on the surface of the T-shaped end of the support base (1). Two limiting sliders (8) are slidably connected in the groove (7), and a guide roller (10) is rotatably connected to the upper end of the limiting slider (8) through a rod. A hydraulic lifting limiting platform (11) is installed at the other end of the support base (1), and the top of the hydraulic lifting limiting platform (11) passes through the guide frame (2). Hydraulic columns (3) are equidistantly arranged on both sides of the guide frame (2), and the hydraulic columns (3) are vertically installed on the surface of the limiting frame (4). The limiting frame (4) is slidably connected to the surface of the guide frame (2), and an auxiliary frame (5) is engaged with the surface of the limiting frame (4). A positioning ball (6) is rotatably connected to one end of the auxiliary frame (5). An installation frame (16) is engaged with the upper end of the limiting frame (4), and a laser rangefinder (17) is symmetrically installed at the bottom end of the installation frame (16).

2. The extrusion profile length real-time monitoring and over-limit early warning device according to claim 1, characterized in that: The upper end face of the guide frame (2) is connected to the PLC controller (12) by bolts, and there is a relay group (13) on one side of the PLC controller (12). The PLC controller (12) and the relay group (13) are connected to the laser rangefinder (17) and the hydraulic column (3) by electrical signals.

3. The extrusion profile length real-time monitoring and over-limit early warning device according to claim 1, characterized in that: One end of the limiting frame (4) is adjacent to the guide roller (10), and the other end of the limiting frame (4) is adjacent to the hydraulic lifting limiting platform (11).

4. The extrusion profile length real-time monitoring and over-limit early warning device according to claim 1, characterized in that: The upper end of the limiting frame (4) is engaged with the positioning frame (14), and the upper end of the positioning frame (14) is fixedly installed with an audible and visual alarm (15). The audible and visual alarm (15) communicates with the PLC controller (12) and the relay group (13) via electrical signals.

5. The extrusion profile length real-time monitoring and over-limit early warning device according to claim 1, characterized in that: The positioning ball (6) and the auxiliary frame (5) are in a U-shaped structure, and the auxiliary frame (5) is perpendicular to the surface of the limiting frame (4).

6. The extrusion profile length real-time monitoring and over-limit early warning device according to claim 1, characterized in that: A connecting spring (9) is provided between the two limiting sliders (8), and the top of the limiting slider (8) is flush with the bottom of the guide frame (2).

7. The extrusion profile length real-time monitoring and over-limit early warning device according to claim 1, characterized in that: The detection end of the laser rangefinder (17) faces the guide roller (10), and the height of the detection end of the laser rangefinder (17) is flush with the height of the positioning ball (6).

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