Yarn feeding detection device and door and window profile production equipment

Abstract

The utility model discloses a yarn feeding detection device and door and window profile production equipment, and relates to the technical field of composite material manufacturing, the yarn feeding detection device comprises a frame body, a laser emitter and a visual camera, the frame body is provided with a containing cavity, the containing cavity is used for containing yarn materials, the containing cavity is provided with a yarn outlet, and the laser emitter is used for emitting laser light. The laser transmitter is arranged on the frame body and located on the edge of the yarn outlet, the laser transmitter is provided with a transmitting end facing the yarn outlet, and the visual camera is arranged on the frame body and close to the laser transmitter and faces the yarn outlet. According to the technical scheme, the visual camera can conduct visual detection on the projection light spots, when the pixel value is larger than the preset threshold value, it is judged that yarn knots appear, the device triggers an alarm prompt, the situation that the yarn knots can be matched with too many yarns can be recognized through the visual scheme, and the yarn knots are prevented from being damaged. The combination of the laser emitter and the visual camera can accurately detect the nodes of the yarn, so that the detection accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material manufacturing, and particularly relates to a yarn feeding detection device and a door and window profile production device. Background Art

[0002] Door and window profiles are special materials used to manufacture 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 diversified appearance designs; while composite profiles such as polyurethane reinforced plastics (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] Taking polyurethane reinforced plastic door and window profiles as an example, polyurethane reinforced plastic is a high-performance building material. It is made through special formulas and processes and has excellent heat insulation, sound insulation and sealing performance. This kind of profile is usually composed of polyurethane and reinforcing materials in a composite manner and is produced by pultrusion process, ensuring the stability and durability of its structure. Due to its light weight, high strength and good thermal insulation characteristics, it is widely used in the manufacture of energy-saving doors and windows, which helps to improve the energy efficiency and living comfort of buildings.

[0004] Polyurethane reinforced plastic doors and windows use polyurethane fiber yarn as raw materials. The yarn is usually wound and placed on a rack, and then the yarn is introduced into a mold for shaping. During the process of yarn extraction, yarn knots are likely to exist in the yarn. In related technologies, single-yarn knot detection is carried out through yarn inlet holes and outlet holes. However, for the pultrusion process of polyurethane profiles, thousands of yarns are required, and the existing detection methods are costly. Summary of the Utility Model

[0005] The main purpose of the utility model is to propose a yarn feeding detection device and a door and window profile production device, aiming to provide a yarn feeding detection device that can realize large-area yarn knot detection.

[0006] To achieve the above purpose, the yarn feeding detection device proposed by the utility model includes:

[0007] A rack, the rack is provided with a receiving cavity for accommodating yarn materials, and the receiving cavity is provided with a yarn outlet;

[0008] A laser emitter, which is provided on the frame body and located at the edge of the yarn outlet, and the laser emitter is provided with a transmitting end facing the yarn outlet; and

[0009] A vision camera, which is provided on the frame body and is arranged close to the laser emitter, and the vision camera faces the yarn outlet.

[0010] In one embodiment, the yarn feeding detection device includes a plurality of vision cameras, and the plurality of vision cameras are spaced apart on the frame body and located in the same plane, and the laser emitter is arranged between two adjacent vision cameras.

[0011] In one embodiment, the laser emitter includes a mounting bracket, a rotating seat and a transmitter body. The mounting bracket is provided on the frame body, the rotating seat is rotatably provided on the mounting bracket, and the transmitter body is provided on the rotating seat.

[0012] In one embodiment, the yarn feeding detection device further includes a tensioning mechanism, and the tensioning mechanism includes:

[0013] A mounting frame, which is rotatably provided on the frame body and close to the yarn outlet, and two abutting rollers are spaced apart on the mounting frame; and

[0014] A clamping roller, which is rotatably provided on the mounting frame and located between the two abutting rollers.

[0015] In one embodiment, the tensioning mechanism further includes a rotating plate, which is rotatably provided on the mounting frame, and two clamping rollers are spaced apart on the rotating plate, and the two clamping rollers are arranged along the extending direction of the abutting rollers.

[0016] In one embodiment, the tensioning mechanism includes a driving member, which is provided on the mounting frame, and the driving end of the driving member is connected to the rotating plate.

[0017] In one embodiment, the frame body includes a plurality of vertical rods and a plurality of layers of plates, and the plurality of layers of plates are evenly spaced along the vertical direction on the vertical rods.

[0018] In one embodiment, each of the layers of plates is provided with a yarn outlet, and each yarn outlet is provided with the laser emitter and the vision camera.

[0019] In one embodiment, a guiding frame is provided at the bottom of the layer of plate, and the guiding frame is formed with a plurality of guiding holes.

[0020] The present utility model also provides a door and window profile production device, which includes a yarn feeding detection device, and the yarn feeding detection device includes:

[0021] A frame body is provided with a receiving cavity for accommodating yarn materials, and the receiving cavity is provided with a yarn outlet.

[0022] A laser emitter is disposed on the frame body and at the edge of the yarn outlet, and the laser emitter has a transmitting end facing the yarn outlet; and

[0023] A vision camera is disposed on the frame body and is arranged close to the laser emitter, and the vision camera faces the yarn outlet.

[0024] In the technical solution of the present utility model, a yarn feeding detection device and a door and window profile production device are proposed. Among them, the yarn feeding detection device includes a frame body, a laser emitter, and a vision camera. The frame body is provided with a receiving cavity for accommodating yarn materials, the receiving cavity is provided with a yarn outlet, and both the laser emitter and the vision camera are disposed on the frame body and at the yarn outlet. When the fiber yarn raw material is discharged from the yarn outlet, the laser emitter emits laser light to form a projection light spot on thousands of yarns, and the vision camera can perform visual detection on the projection light spot. When the pixel value is greater than a preset threshold, it is determined that a yarn knot appears, and the device triggers an alarm prompt. Identifying yarn knots through a vision solution can match the situation of excessive yarn quantity. The combination of the laser emitter and the vision camera can accurately detect the nodes of the yarn, ensuring the accuracy of the detection. Description of the Drawings

[0025] 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 the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the yarn feeding detection device provided by the present utility model;

[0027] Figure 2 It is a partial view of the yarn feeding detection device;

[0028] Figure 3 It is Figure 2 A partial enlarged view of part A in

[0029] Figure 4 It is a schematic structural diagram of the guide frame in the yarn feeding detection device.

[0030] Explanation of the reference numerals in the drawings:

[0031] 1000. Yarn feeding detection device; 1. Frame; 11. Vertical rod; 12. Shelf; 2. Laser emitter; 21. Mounting bracket; 22. Rotating base; 23. Emitter body; 231. Emitting end; 3. Vision camera; 4. Tensioning mechanism; 41. Mounting frame; 42. Abutting roller; 43. Clamping roller; 44. Rotating plate; 45. Driving part; 5. Guide frame; 51. Guide hole; 2000. Polyurethane fiber yarn; 2100. Yarn.

[0032] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0033] The technical solutions in the embodiments of the present utility model will be clearly and completely described below 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 shall fall within the protection scope of the present utility model.

[0034] 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.

[0035] In addition, if there are descriptions such as "first", "second", etc. 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 the 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 the 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 protection scope required by the present utility model.

[0036] Door and window profiles are special materials used to manufacture 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 enhance the heat insulation effect; plastic profiles such as PVC have good sealing and plasticity, making it easy to achieve diverse appearance designs; while composite profiles such as glass fiber reinforced plastic (GFRP) combine the advantages of multiple materials, providing 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.

[0037] Taking glass fiber reinforced plastic door and window profiles as an example, glass fiber reinforced plastic is a high-performance building material. It is made through special formulations and processes and has excellent heat insulation, sound insulation, and sealing performance. This type of profile is usually composed of a composite of polyurethane and reinforcing materials and is produced using a pultrusion process, ensuring the stability and durability of its structure. Due to its light weight, high strength, and good thermal insulation characteristics, it is widely used in the manufacture of energy-efficient doors and windows, helping to improve the energy efficiency and living comfort of buildings.

[0038] Glass fiber reinforced plastic doors and windows use glass fiber yarn as raw material. The yarn is usually wound and placed on a frame, and then the yarn is introduced into a mold for shaping. During the process of the yarn being drawn out, there are likely to be yarn knots. In related technologies, the yarn knots of a single yarn are detected through a yarn inlet hole and an outlet hole. However, for the pultrusion process of glass fiber profiles, thousands of yarns are required, and the existing detection methods are costly.

[0039] To solve the above problems, the present utility model proposes a yarn feeding detection device, aiming to provide a yarn feeding detection device that can achieve large-area yarn knot detection. Figures 1 to 4 It is a schematic structural diagram of an embodiment provided by the yarn feeding detection device of the present utility model.

[0040] Please refer to Figures 1 to 4 , the present utility model proposes a yarn feeding detection device 1000, including a frame 1, a laser emitter 2, and a vision camera 3. The frame 1 is provided with a receiving cavity for accommodating yarn materials. The receiving cavity is provided with a yarn outlet. The laser emitter 2 is disposed on the frame 1 and is located at the edge of the yarn outlet. The laser emitter 2 is provided with a transmitting end 231 facing the yarn outlet. The vision camera 3 is disposed on the frame 1 and is arranged close to the laser emitter 2. The vision camera 3 faces the yarn outlet.

[0041] In the technical solution of the present utility model, a yarn feeding detection device 1000 and a door and window profile production device are proposed. Among them, the yarn feeding detection device 1000 includes a frame body 1, a laser emitter 2, and a vision camera 3. The frame body 1 is provided with a receiving cavity for accommodating yarn materials. The receiving cavity is provided with a yarn outlet. The laser emitter 2 and the vision camera 3 are both arranged on the frame body 1 and located at the yarn outlet. When the fiber yarn raw material exits from the yarn outlet, the laser emitter 2 emits laser light to form a projection light spot on thousands of yarns 2100. The vision camera 3 can then perform visual detection on the projection light spot. When the pixel value is greater than a preset threshold, it is determined that a yarn knot appears, and the device triggers an alarm prompt. Identifying yarn knots through a vision solution can match the situation of excessive numbers of yarns 2100. The combination of the laser emitter 2 and the vision camera 3 can accurately detect the nodes of the yarns 2100, ensuring the accuracy of the detection.

[0042] Considering that thousands of yarns 2100 pass through the yarn outlet during actual production, to further improve the accuracy of visual recognition, the yarn feeding detection device 1000 includes multiple vision cameras 3. Specifically, please further refer to Figure 2 , in this embodiment, two vision cameras 3 are respectively arranged on the left and right of the upper part of the yarn outlet. The two vision cameras 3 are spaced apart on the frame body 1 and located on the same installation plane. The laser emitter 2 is located between the two vision cameras 3. The two vision cameras 3 are respectively responsible for identifying the yarns 2100 in the left area and the right area of the yarn outlet. The main advantage of setting multiple vision cameras 3 compared to a single vision camera 3 is that it improves the detection coverage and accuracy. By respectively arranging two vision cameras 3 on the left and right of the upper part of the yarn outlet, comprehensive monitoring of the entire yarn outlet area can be achieved. Each camera is responsible for monitoring half of the area of the yarns 2100, which can reduce the possible blind spots of a single camera and ensure that there are no omissions. At the same time, the coordinated work of the two cameras can provide richer data, which helps to more accurately identify the nodes and other defects in the yarns 2100. In addition, the multi-camera system can also achieve faster data processing and analysis because each camera can independently process the image data of its responsible area, thereby improving the overall detection efficiency. This configuration also increases the redundancy of the system. Even if one camera fails, the other camera can still continue to work, ensuring the continuous operation of the production line.

[0043] To enable the angle of the laser emitter 2 to be adjustable so as to cover different detection areas, the laser emitter 2 includes a mounting bracket 21, a rotating seat 22, and a transmitter body 23. Specifically, please further refer to Figure 3, The mounting bracket 21 is provided on the frame body 1, the rotating seat 22 is rotatably provided on the mounting bracket 21, and the transmitter body 23 is provided on the rotating seat 22, which provides flexibility for the laser device, allowing the laser transmitter 2 to adjust the angle according to different detection requirements to cover different detection areas, so as to adapt to yarn 2100 bundles of different widths or shapes; Secondly, this design enhances the detection accuracy. By adjusting the angle of the laser, the position and shape of the projection light spot can be optimized to ensure more accurate capture of knots or defects on the yarn 2100; The adjustable angle design simplifies the equipment maintenance and calibration process because the laser transmitter 2 can be quickly adjusted to adapt to different detection conditions or recalibrate the system.

[0044] To obtain a more accurate recognition effect, when the vision camera 3 performs detection, the yarn 2100 needs to be tightened. For this purpose, the yarn feeding detection device 1000 further includes a tensioning mechanism 4. Specifically, please further refer to Figure 2 and Figure 3 , The tensioning mechanism 4 includes a mounting frame 41, a contact roller 42 and a clamping roller 43. The mounting frame 41 is rotatably provided on the frame body 1 and close to the yarn outlet. Two contact rollers 42 are spaced on the mounting frame 41. The clamping roller 43 is rotatably provided on the mounting frame 41 and located between the two contact rollers 42. The yarn 2100 abuts against the two contact rollers 42. When the clamping roller 43 rotates, it will abut tightly against the yarn 2100 so that the yarn 2100 located in the detection area (i.e., the position below the vision camera 3) is straightened, so as to avoid the situation that some loose yarn 2100 is misjudged as a yarn knot. Further, the tensioning mechanism 4 further includes a rotating plate 44. The rotating plate 44 is rotatably provided on the mounting frame 41. Two clamping rollers 43 are spaced on the rotating plate 44. The two clamping rollers 43 are arranged along the extension direction of the contact roller 42. The rotating shaft of the rotating plate 44 is externally connected to a driving member 45, preferably a driving motor, and is driven by the motor to achieve tensioning and loosening.

[0045] To better meet the actual production requirements, the frame body 1 includes a plurality of vertical rods 11 and a plurality of laminates 12. Specifically, please further refer to Figure 1, a plurality of laminates 12 are uniformly spaced along the vertical direction on four vertical rods 11, and a plurality of yarn reels are placed on each laminate 12, thereby meeting the production requirements. To guide the yarn 2100, a guide frame 5 is provided at the bottom of the laminate 12 and is equipped with a plurality of guide holes 51 to guide the yarn reels of the next layer. This design can effectively guide multiple yarns 2100 in an orderly manner, ensure that the yarns 2100 run stably along the predetermined path, and reduce the possibility of the yarns 2100 being entangled with each other or deviating from the track; secondly, the setting of the guide holes 51 helps to evenly distribute the yarns 2100, avoid inconsistent tensions caused by uneven densities of the yarns 2100, and thus affect the product quality; furthermore, the presence of the guide frame 5 can reduce the friction and wear of the yarns 2100 during the production process, extend the service life of the yarns 2100, and at the same time reduce the maintenance cost during the production process; in addition, this design also facilitates the implementation of automatic control, improving the production efficiency and stability.

[0046] The present utility model also proposes a door and window profile production device, which includes a yarn feeding detection device 1000. The specific structure of the yarn feeding detection device 1000 refers to the above-mentioned embodiment. Since this door and window profile production device adopts all the technical solutions of the above-mentioned all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated here one by one.

[0047] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A yarn feeding detection device, characterized in that: include: A frame, wherein the frame is provided with a receiving cavity, the receiving cavity is used to receive the yarn material, and the receiving cavity is provided with a yarn outlet; A laser emitter, the laser emitter is arranged on the frame and located at the edge of the yarn outlet, and the laser emitter is provided with an emission end facing the yarn outlet; and A visual camera is arranged on the frame and close to the laser emitter, and the visual camera is arranged toward the yarn outlet.

2. The yarn feeding detection device according to claim 1, characterized in that: The yarn feeding detection device comprises a plurality of visual cameras, which are arranged at intervals on the frame and located on the same plane, and the laser emitter is arranged between two adjacent visual cameras.

3. The yarn feeding detection device according to claim 2, characterized in that: The laser emitter comprises a mounting bracket, a rotating seat and an emitter body. The mounting bracket is arranged on the frame body, the rotating seat is rotatably arranged on the mounting bracket, and the emitter body is arranged on the rotating seat.

4. The yarn feeding detection device according to any one of claims 1 to 3, characterized in that: The yarn feeding detection device further comprises a tensioning mechanism, and the tensioning mechanism comprises: A mounting frame, the mounting frame is rotatably mounted on the frame body and close to the yarn outlet, and the mounting frame is provided with two abutment rollers at intervals; and A clamping roller is rotatably arranged on the mounting frame and is located between the two abutting rollers.

5. The yarn feeding detection device according to claim 4, characterized in that: The tensioning mechanism further comprises a rotating plate, the rotating plate is rotatably arranged on the mounting frame, two clamping rollers are arranged at intervals on the rotating plate, and the two clamping rollers are arranged along the extending direction of the abutting roller.

6. The yarn feeding detection device according to claim 5, characterized in that: The tensioning mechanism comprises a driving member, the driving member is arranged on the mounting frame, and a driving end of the driving member is connected to the rotating plate.

7. The yarn feeding detection device according to any one of claims 1 to 3, characterized in that: The frame includes a plurality of vertical rods and a plurality of layer plates, and the plurality of layer plates are evenly spaced on the vertical rods along a vertical direction.

8. The yarn feeding detection device according to claim 7, characterized in that: Each of the layer plates is provided with a yarn outlet, and each of the yarn outlets is provided with the laser emitter and the visual camera.

9. The yarn feeding detection device according to claim 7, characterized in that: A guide frame is provided at the bottom of the layer plate, and a plurality of guide holes are formed on the guide frame.

10. A door and window profile production equipment, characterized in that: It comprises the yarn feeding detection device as claimed in any one of claims 1 to 9.

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