Profile shortage detection device and door and window profile production equipment

By designing a profile defect detection device and using visual cameras and image processing technology to detect the profile surface, the problems of inadequate detection and low efficiency in the prior art are solved, and accurate detection and quality control of the profile surface are achieved.

CN223001117UActive Publication Date: 2025-06-20SHANGHAI JUANCHUANG MATERIAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422162197.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-06-20
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

In the production process of door and window profiles, it is difficult for the prior art to achieve accurate detection of the profile surface, resulting in problems such as inadequate detection and low working efficiency.

Method used

A profile material defect detection device is designed, including a bracket, a visual camera and a fill light assembly. The bracket is installed at the mold discharge port, and the visual camera ring is installed in the circumference of the discharge port. The fill light assembly is used to reduce ambient light interference. When the profile is discharged, the visual camera captures and analyzes image data on the profile surface, and uses image processing technology to identify defects on the surface and features that do not meet quality standards.

Benefits of technology

Accurate inspection of the surface of the profile is achieved, and the defects of the surface and the characteristics that do not meet the quality standards can be identified in a timely manner, improving product quality and production efficiency.

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Abstract

The utility model discloses a sectional material shortage detection device and door and window sectional material production equipment, and relates to the technical field of composite material processing, the sectional material shortage detection device comprises a support, a visual camera and a light supplementing assembly, the support is used for being arranged at a discharging port of a mold, and a light shielding plate is arranged at the upper top of the support; the visual camera is arranged on the support and located in the circumferential direction of the discharging port, the visual camera is provided with a detection end facing the discharging port, and the light supplementing assembly is arranged on the shading plate and faces the discharging port; according to the technical scheme provided by the utility model, when the door and window profile is extruded from the discharge hole of the die, the visual detector is used for carrying out visual detection on the surface of the profile, and the working principle of the visual detector is based on capturing and analyzing image data of the surface of the profile and analyzing an image by utilizing an image processing technology so as to identify the characteristics of surface defects, chromatic aberration and the like. Once an abnormality is detected, the system can give an alarm immediately, so that the quality problem in the production process can be identified and processed in time, and the product quality and the production efficiency are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of composite material processing, and particularly relates to a profile material shortage detection device and a door and window profile production device. Background Technique

[0002] Door and window profiles are special materials used for manufacturing door and window frames. They are usually made of metal, plastic or composite materials, and have the characteristics of light weight, high strength and good durability. Modern door and window profile designs focus on heat insulation, sound insulation and sealing performance to meet the requirements of building energy conservation and environmental protection. Metal profiles such as aluminum alloy are often combined with heat insulation strips due to their good thermal conductivity to improve the heat insulation effect; plastic profiles such as PVC have good sealing performance and plasticity, and are easy to achieve diverse appearance designs; while composite profiles such as glass fiber reinforced plastic (GFRP) combine the advantages of multiple materials and provide higher strength and weather resistance. With the construction industry's emphasis on sustainable development, door and window profiles are also constantly innovating to meet higher energy efficiency standards and aesthetic requirements.

[0003] In the traditional polyurethane door and window pultrusion process, due to the extremely high requirements for the precision and appearance quality of door and window profiles in the construction field, every link of the process must be strictly controlled. Especially after pultrusion molding, the profiles also need to go through a spraying process to improve their appearance effect. However, in this process, the outer surface quality of the profiles directly affects the appearance and performance of the final products. Common problems include surface color difference, lack of yarn or uneven infiltration, etc. If these problems are not handled in time, they will seriously affect the overall quality of the doors and windows.

[0004] In the related technology, the profiles are manually detected by workers after being processed and discharged from the mold, and problems such as lack of yarn and uneven infiltration are identified by the naked eye. Inevitably, there will be problems such as undetected and low work efficiency in this way. Content of the Utility Model

[0005] The main purpose of the utility model is to propose a profile material shortage detection device and a door and window profile production device, aiming to provide a profile material shortage detection device that can achieve a more accurate detection effect on profiles.

[0006] To achieve the above purpose, the profile material shortage detection device proposed by the utility model is applied to the shortage detection of door and window profiles, and includes:

[0007] A bracket, the bracket is used to be arranged at the discharge port of the mold, and a light shielding plate is arranged at the upper top of the bracket;

[0008] A vision camera, the vision camera is arranged on the bracket and is located in the circumferential direction of the discharge port, and the vision camera is provided with a detection end facing the discharge port; and

[0009] A supplementary lighting component, which is arranged on the light-shielding plate and faces the discharge port.

[0010] In one embodiment, the profile material shortage detection device includes three vision cameras, which are arranged around the circumference of the discharge port, and the detection ends of the three vision cameras are arranged towards the discharge port.

[0011] In one embodiment, the bracket includes two vertically spaced uprights and a cross plate connecting the two uprights. The two uprights extend vertically, and the cross plate is arranged below the discharge port, and one of the vision cameras is arranged on the cross plate.

[0012] In one embodiment, the upright includes a first rod section and a second rod section movably sleeved on the first rod section, and the light-shielding plate is arranged on the second rod section.

[0013] In one embodiment, the bracket further includes four side plates, which are arranged on the bracket and below the light-shielding plate. The four side plates enclose a detection area, and at least two vision cameras are arranged in the detection area.

[0014] In one embodiment, the profile material shortage detection device further includes an annular track, which is arranged on the bracket and around the circumference of the discharge port, and the vision camera is slidably arranged on the annular track.

[0015] In one embodiment, the supplementary lighting component is an annular supplementary light, and the annular supplementary light is arranged towards the detection area.

[0016] The present utility model also provides a door and window profile production device, including:

[0017] A workbench;

[0018] A mold, which is arranged on the workbench and has a feed port and a discharge port; and

[0019] A profile material shortage detection device, which is arranged at the discharge port.

[0020] In one embodiment, the workbench is provided with a sliding seat, which can slide along the connection line direction of the feed port and the discharge port, and the mold is arranged on the sliding seat.

[0021] In one embodiment, legs are arranged at the ends of the bracket, and the legs are arranged on the sliding seat.

[0022] In the technical solution of the present utility model, a profile material shortage detection device and a door and window profile production device are proposed. Among them, the profile material shortage detection device includes a bracket, a vision camera, and a supplementary lighting component. The bracket is used to be arranged at the mold discharge port. A light-shielding plate is provided at the upper top of the bracket. The vision camera is arranged on the bracket and is located circumferentially around the discharge port. The supplementary lighting component is arranged below the light-shielding plate and faces the discharge port. When the door and window profile is extruded from the discharge port of the mold, the vision camera will perform visual inspection on the surface of the profile. Its working principle is based on capturing and analyzing the image data of the profile surface, and using image processing technologies, such as algorithms like edge detection, color recognition, and pattern matching, to analyze the image to identify surface defects, color differences, or other features that do not meet the quality standards. Once an abnormality is detected, the system will immediately issue a warning to ensure that quality problems in the production process can be promptly identified and processed, thereby improving product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0024] Figure 1 Structural schematic diagram of an embodiment of the door and window profile production device provided by the present utility model;

[0025] Figure 2 For Figure 1 Partial enlarged view at position A in

[0026] Figure 3 Structural schematic diagram of another angle of the door and window profile production device provided by the present utility model;

[0027] Figure 4 Structural schematic diagram of the first embodiment of the profile material shortage detection device provided by the present utility model;

[0028] Figure 5 Structural schematic diagram of the first embodiment of the profile material shortage detection device provided by the present utility model.

[0029] Description of the reference numerals in the drawings:

[0030] 1000. Door and window profile production equipment; 100. Profile material shortage detection device; 1. Support; 11. Vertical rod; 111. First rod section; 112. Second rod section; 12. Horizontal plate; 13. Light-shielding plate; 14. Side plate; 15. Leg; 2. Vision camera; 3. Light supplement component; 31. Ring-shaped supplementary light; 4. Ring-shaped track; 200. Workbench; 210. Sliding seat; 300. Mold; 310. Feeding port; 320. Discharging port; 400. Profile.

[0031] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in combination with embodiments. Specific embodiments

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0033] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] In the traditional pultrusion process of polyurethane doors and windows, due to the extremely high requirements for the accuracy and appearance quality of door and window profiles in the construction field, every link of the process must be strictly controlled. Especially after pultrusion molding, the profiles also need to go through a spraying process to improve their appearance effect. However, in this process, the outer surface quality of the profiles directly affects the appearance and performance of the final products. Common problems include surface color difference, lack of yarn, uneven infiltration, etc. If these problems are not dealt with in time, they will seriously affect the overall quality of the doors and windows.

[0036] In the related technology, the profiles are manually detected by workers after being processed and discharged from the mold, and problems such as lack of yarn and uneven infiltration are identified by the naked eye. Inevitably, there will be problems such as undetected and low work efficiency in this way.

[0037] To solve the above problems, the present utility model proposes a profile material shortage detection device, aiming to provide a profile material shortage detection device that can achieve a relatively accurate detection effect on profiles. Figures 1 to 5 The structural schematic diagram of an embodiment provided by the profile material shortage detection device of the present utility model.

[0038] Please refer to Figures 1 to 5 , the present utility model proposes a profile material shortage detection device 100, including a bracket 1, a vision camera 2 and a supplementary lighting component 3. The bracket 1 is used to be arranged at the discharge port 320 of the mold 300. A light shielding plate is provided at the upper top of the bracket 1. The vision camera 2 is arranged on the bracket 1 and is located in the circumferential direction of the discharge port 320. The vision camera 2 is provided with a detection end facing the discharge port 320, and the supplementary lighting component 3 is arranged on the light shielding plate 13 and faces the discharge port 320.

[0039] In the technical solution of the present utility model, a profile material shortage detection device 100 and a door and window profile production device 1000 are proposed. Among them, the profile material shortage detection device 100 includes a bracket 1, a vision camera 2 and a supplementary lighting component 3. The bracket 1 is used to be arranged at the discharge port 320 of the mold 300. A light shielding plate is provided at the upper top of the bracket 1. The vision camera 2 is arranged on the bracket 1 and is located in the circumferential direction of the discharge port 320. The supplementary lighting component 3 is arranged below the light shielding plate 13 and faces the discharge port 320. When the door and window profiles are extruded from the discharge port 320 of the mold 300, the vision camera 2 will perform visual detection on the surface of the profiles. Its working principle is based on capturing and analyzing the image data of the profile surface, and using image processing technologies, such as algorithms like edge detection, color recognition and pattern matching, to analyze the image to identify surface defects, color differences or other features that do not meet the quality standards. Once an abnormality is detected, the system will immediately issue a warning to ensure that quality problems in the production process can be identified and processed in time, thereby improving product quality and production efficiency.

[0040] In an embodiment of the present utility model, the device altogether includes three vision cameras 2. Specifically, please further refer toFigure 4 , three vision cameras 2 are arranged circumferentially around the discharge port 320. One of the vision cameras 2 is located at the bottom of the discharge port 320 for visual inspection of the bottom of the profile, and the other two vision cameras 2 are respectively located at two diagonally upper positions of the discharge port 320. The two upper vision cameras 2 can jointly perform visual inspection on the two sides and the top surface of the profile. By adopting the device layout with three vision cameras 2 arranged circumferentially around the discharge port 320, the inspection area of the profile can be comprehensively covered. The vision camera 2 at the bottom is specifically responsible for inspecting the bottom of the profile to ensure that the surface quality of the bottom is monitored; while the two vision cameras 2 located diagonally above work together to cover the two sides and the top surface of the profile to achieve all-round visual inspection. The advantage of this layout is that it can provide a more comprehensive inspection perspective, reduce visual blind spots, ensure that every side of the profile can be carefully inspected, thereby improving the accuracy and reliability of the inspection. At the same time, this multi-angle inspection method can also effectively identify minor defects on the surface of the profile, improve product quality, and ensure that the final product meets strict quality standards.

[0041] To install the two upper vision cameras 2, the bracket 1 includes two vertically arranged rods 11 spaced apart and a cross plate 12 connecting the two rods 11. Specifically, please further refer to Figure 2 , the two rods 11 extend vertically, and the cross plate 12 is arranged below the discharge port 320. One of the vision cameras 2 is installed on the cross plate 12. To adapt to the inspection of profiles with different size specifications, the rod 11 also includes a first rod section 111 and a second rod section 112. Specifically, please further refer to Figure 1 , the second rod section 112 is movably sleeved on the first rod section 111, so that it can be telescoped vertically. When the size specification of the door and window profile is small, the second rod section 112 can be adjusted to move downward and contract, so that the two upper vision cameras 2 can be closer to the profile, thereby achieving a more accurate inspection effect; when the size specification of the door and window profile is large, the reverse movement is upward and it expands.

[0042] To reduce the interference of ambient light on the vision camera 2, the bracket 1 further includes four side plates 14. The four side plates 14 are arranged on the bracket 1 and are located below the light-shielding plate 13. The four side plates 14 and the upper light-shielding plate 13 jointly enclose a detection area. Specifically, please further refer to Figure 1, the two top visual cameras 2 are arranged in the detection area. The light-shielding plate 13 and the side plate 14 provide a relatively stable and controlled detection environment for the visual camera 2, thus ensuring that the camera can capture and analyze images under optimal conditions. The combination of the side plate 14 and the light-shielding plate 13 forms a light-shielding cover, reducing the direct sunlight and reflection of external light, which helps to improve the image quality and reduce the misjudgment rate. In addition, this design can also protect the visual camera 2 from environmental factors such as dust and water vapor, extend the service life of the equipment, ensure the continuity and stability of the detection process, and improve production efficiency and product quality. The lower visual camera 2 is less affected by ambient light interference because it is covered by the profile. The light-shielding plate 13 is also provided with an annular fill light 31, which further reduces ambient light interference.

[0043] In another embodiment of the present utility model, an annular track 4 is installed on the bracket 1. Specifically, please further refer to Figure 5 , the annular track 4 is located circumferentially around the discharge port 320 and is coaxially arranged with the discharge port 320. The visual camera 2 is slidably arranged on the annular track 4 and can perform a circular motion around the discharge port 320. When the profile is discharged from the discharge port 320, a sliding seat (not marked in the figure) arranged on the annular track 4 moves along the annular track 4, and the visual camera 2 is arranged on the sliding seat. The visual camera 2 rotates around the profile for one week to cover all areas of the profile, and can cover all possible detection dead angles, realizing a comprehensive detection without blind spots, which is crucial for detecting minute defects on the surface of the profile. In addition, this design improves the flexibility and adaptability of the detection, can adapt to profiles of different lengths and shapes, and ensures the consistency and accuracy of the detection. Finally, the automated circular motion reduces manual intervention, improves production efficiency, and also reduces detection errors caused by improper manual operation.

[0044] The present utility model also proposes a door and window profile production device 1000. The door and window profile production device 1000 includes a workbench 200, a mold 300, and a profile material shortage detection device 100. The mold 300 is arranged on the workbench 200 and has a feed port 310 and a discharge port 320. The profile material shortage detection device 100 is arranged at the discharge port 320. The specific structure of the profile material shortage detection device 100 refers to the above embodiment. Since the door and window profile production device 1000 adopts all the technical solutions of the above all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0045] In an embodiment of the door and window profile production device 1000 proposed in the present utility model, the workbench 200 is provided with a sliding seat 210. Specifically, please further refer to Figure 1, the sliding seat 210 can slide along the connection direction of the feed inlet 310 and the discharge outlet 320, so that the position of the mold 300 can be adjusted. The profile material shortage detection device 100 is fixed on the sliding seat 210 through the leg 15 at the end of the bracket 1.

[0046] The above is only the exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A profile shortage detection device, used for detecting shortage of door and window profiles, characterized in that: include: A bracket, the bracket is used to be arranged at the discharge port of the mold, and a light shielding plate is arranged on the upper top of the bracket; A visual camera, the visual camera is arranged on the bracket and located in the circumference of the discharge port, and the visual camera is provided with a detection end facing the discharge port; and A fill light component is arranged on the shading plate and faces the discharge port.

2. The profile shortage detection device according to claim 1, characterized in that: The profile shortage detection device includes three visual cameras, which are arranged in a circle around the discharge port, and the detection ends of the three visual cameras are arranged toward the discharge port.

3. The profile shortage detection device according to claim 2, characterized in that: The bracket includes two vertical rods arranged at intervals and a horizontal plate connecting the two vertical rods, the two vertical rods are extended in a vertical direction, the horizontal plate is arranged below the discharge port, and one of the visual cameras is arranged on the horizontal plate.

4. The profile shortage detection device according to claim 3, characterized in that: The vertical rod comprises a first rod section and a second rod section movably sleeved on the first rod section, and the sunshade is arranged on the second rod section.

5. The profile shortage detection device according to claim 4, characterized in that: The bracket also includes four side panels, which are arranged on the bracket and located below the shading plate. The four side panels enclose a detection area, and at least two visual cameras are arranged in the detection area.

6. The profile shortage detection device according to claim 1, characterized in that: The profile shortage detection device also includes an annular track, which is arranged on the bracket and located in the circumference of the discharge port, and the visual camera is slidably arranged on the annular track.

7. The profile shortage detection device according to claim 5, characterized in that: The fill light component is an annular fill light, and the annular fill light is arranged toward the detection area.

8. A door and window profile production equipment, characterized in that: include: Workbench; A mold, which is arranged on the workbench and has a feed inlet and a discharge outlet; as well as The profile shortage detection device according to any one of claims 1 to 7, wherein the profile shortage detection device is arranged at the discharge port.

9. The door and window profile production equipment according to claim 8, characterized in that: The workbench is provided with a sliding seat, and the sliding seat can slide along the direction of the line connecting the feed port and the discharge port, and the mold is arranged on the sliding seat.

10. The door and window profile production equipment according to claim 9, characterized in that: The end of the bracket is provided with a supporting leg, and the supporting leg is arranged on the sliding seat.