Carbon fiber tow inverting and twisting on-line detection device

Abstract

The embodiment of the utility model provides a kind of carbon fiber tow overturning twist on-line detection device, it is related to carbon fiber tow processing field.The utility model provides carbon fiber tow overturning twist on-line detection device including fixed plate;Detection unit is set to fixed plate, and detection unit includes transmitter and receiver, and transmitter and receiver have the gap for carbon fiber tow to be threaded between, transmitter is used to send optical signal towards receiver, and receiver is used to receive the optical signal emitted by transmitter;Control unit is set to fixed plate and is electrically connected with receiver;Alarm unit is set to fixed plate and is electrically connected with control unit.The utility model has improved the problem of low efficiency, poor precision and large error when detecting carbon fiber tow manually at present, and improves the detection effect of carbon fiber tow.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber tow processing technology, and more specifically, to an online detection device for carbon fiber tow reversal and twisting. Background Technology

[0002] Carbon fiber is a filamentous carbon material with a carbon content of over 90%, possessing excellent properties such as lightweight, high strength, high elastic modulus, resistance to high and low temperatures, and corrosion resistance. Carbon fiber is mainly used in aerospace, wind turbine blades, and sporting goods, and has broad market potential. During carbon fiber production, the winding process is prone to tumbling or even twisting. Tumbling or twisting affects the surface uniformity of the carbon fiber spool and impacts subsequent secondary processing such as carbon cloth or prepreg, resulting in material loss and property damage.

[0003] Currently, to address the issue of carbon fiber tow reversal and even twisting during the winding process, most workshops use manual inspection to manually adjust the carbon fiber tow reversal and twisting phenomenon. However, manual inspection is inefficient, inaccurate, and prone to errors, and the effect of carbon fiber tow reversal and twisting cannot be properly checked. Utility Model Content

[0004] The purpose of this invention is to provide an online detection device for the reversal and twisting of carbon fiber bundles, which can improve the problems of low efficiency, poor accuracy and large error in the current manual detection of carbon fiber bundles, and improve the detection effect of carbon fiber bundles.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides an online detection device for carbon fiber tow twisting and turning, comprising: Fixing plate; A detection unit is disposed on the fixed plate. The detection unit includes a transmitter and a receiver. There is a gap between the transmitter and the receiver for passing through a carbon fiber bundle. The transmitter is used to send an optical signal toward the receiver, and the receiver is used to receive the optical signal emitted by the transmitter. A control unit is mounted on the fixed plate and electrically connected to the receiver; An alarm unit is mounted on the fixed plate and electrically connected to the control unit.

[0006] In an optional embodiment, the transmitter and the receiver are symmetrically arranged on the fixed plate.

[0007] In an optional embodiment, the detection unit includes a through-beam photoelectric sensor, which is electrically connected to the control unit.

[0008] In an optional embodiment, the fixing plate is provided with mounting holes for detachably fixing the fixing plate to the winding machine.

[0009] In an optional embodiment, the detection device further includes a housing, which is detachably disposed on the fixing plate and is used to cover the detection unit.

[0010] In an optional embodiment, the housing is made of a metallic material, and the inner wall of the housing is covered with an electromagnetic shielding layer.

[0011] In an optional embodiment, the outer shell is provided with through holes for passing through carbon fiber bundles.

[0012] In an optional embodiment, the housing is provided with an outlet hole for cable to pass through.

[0013] In an optional embodiment, the control unit includes a controller electrically connected to the receiver. The receiver is used to convert the received optical signal into an electrical signal and transmit the electrical signal to the controller. The controller is used to control the alarm unit to start or stop according to the change of the electrical signal.

[0014] In an optional embodiment, the detection device includes a plurality of detection units, and the control unit is electrically connected to the plurality of detection units.

[0015] The beneficial effects of the online detection device for carbon fiber tow twisting and turning provided in this embodiment of the invention include: The carbon fiber bundle is driven through the gap between the transmitter and the receiver. The carbon fiber bundle blocks the light signal emitted by the transmitter towards the receiver. As the width of the carbon fiber bundle changes when it is flipped or twisted, the blocked light signal changes. When the light signal received by the receiver changes, the control unit activates the alarm unit to alert the operator. This automatically detects the flipping and twisting of the carbon fiber bundle, improving the current problems of long inspection time, large error, and low efficiency, and enhancing the inspection effect of the carbon fiber bundle flipping and twisting. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a front view of the online detection device for carbon fiber tow twisting provided in this embodiment; Figure 2 This is a bottom view of the online detection device for carbon fiber tow twisting provided in this embodiment.

[0018] Icons: 100 - Mounting plate; 110 - Mounting hole; 200 - Transmitter; 300 - Receiver; 400 - Housing; 410 - Through hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] The following describes in detail the overall structure, working principle, and technical effects of the online detection device for carbon fiber tow twisting provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0026] Please refer to Figure 1 and Figure 2 This utility model provides an online detection device for the twisting and twisting of carbon fiber bundles, which is applied to the production and processing of carbon fiber bundles to detect the twisting and twisting of carbon fiber bundles, thereby improving the problems of long time, large error and low efficiency of manual detection of carbon fiber bundles.

[0027] Please refer to Figure 1 and Figure 2 The online detection device for carbon fiber tow twisting provided by this utility model includes a fixed plate 100, a detection unit, a control unit, and an alarm unit. The detection unit is mounted on the fixed plate 100 and includes a transmitter 200 and a receiver 300, with a gap between the transmitter 200 and the receiver 300 for the carbon fiber tow to be detected to pass through. The transmitter 200 sends a light signal toward the receiver 300, and the receiver 300 receives the light signal emitted by the transmitter 200. The control unit and the alarm power supply are both mounted on the fixed plate 100. The control unit is electrically connected to the receiver 300, and the alarm unit is electrically connected to the control unit.

[0028] Under normal conditions, carbon fiber bundles are long strips of uniform width. When they are flipped or twisted, the middle part deforms, causing the width of the carbon fiber bundle to change. By passing the carbon fiber bundle through the gap between the transmitter 200 and the receiver 300, under normal conditions, the carbon fiber bundle uniformly blocks the light signal emitted by the transmitter 200 and leaves a uniform long shadow on the receiver 300. However, because the width of the carbon fiber bundle changes at the point of flipping or twisting, the light signal blocked is different from that blocked by a conventional carbon fiber bundle. At this time, the control unit activates the alarm unit to sound an alarm and remind the operator.

[0029] The carbon fiber bundle is driven through the gap between the transmitter 200 and the receiver 300. The carbon fiber bundle blocks the light signal emitted by the transmitter 200 towards the receiver 300. As the width of the carbon fiber bundle changes when it is flipped or twisted, the blocked light signal changes. When the light signal received by the receiver 300 changes, the control unit controls the alarm unit to activate and alarm the operator. This automatically detects the flipping and twisting of the carbon fiber bundle, improving the current problems of long inspection time, large error and low efficiency of manual inspection, and enhancing the inspection effect of the flipping and twisting of the carbon fiber bundle.

[0030] Please refer to Figure 1 and Figure 2In some optional embodiments, the transmitter 200 and receiver 300 are symmetrically arranged on the fixed plate 100 so that the transmitter 200 and receiver 300 face each other and the gap width between them is consistent, avoiding errors when the receiver 300 receives light signals at different positions. In other optional embodiments, the detection unit includes a through-beam photoelectric sensor, which has a light emitter and a light receiver. When the carbon fiber bundle to be detected passes through the through-beam photoelectric sensor, it can work with the control unit and alarm unit to detect the flipping or twisting of the carbon fiber bundle.

[0031] Please refer to Figure 1 and Figure 2 In order to facilitate the installation of the detection device on the winding machine for real-time detection of the carbon fiber bundle wound on the winding machine, in this embodiment, a plurality of mounting holes 110 are provided on the fixing plate 100. By means of bolts or pins passing through the mounting holes 110 and connecting to the winding machine, the fixing plate 100 can be detachably installed on the winding machine.

[0032] Please refer to Figure 1 and Figure 2 In some alternative embodiments, the detection device further includes a housing 400, which is detachably mounted on the fixing plate 100. The housing 400 and the fixing plate 100 can be detachably connected by means of clips, pins, bolts, etc., to facilitate the disassembly, installation, and replacement of the housing 400. The housing 400 is used to cover the detection unit to prevent dust and other debris in the outside air from interfering with the receiver 300, and to prevent light signals in the external environment from affecting the receiver 300, thus affecting the detection effect of the carbon fiber bundle. Furthermore, the housing 400 has a through hole 410 for the carbon fiber bundle to pass through, so that the carbon fiber bundle can enter and exit the housing 400. The housing 400 also has a cable outlet hole for the transmitter 200 and the receiver 300 to be connected to an external power source via a cable.

[0033] Please refer to Figure 1 and Figure 2 In some alternative embodiments, the housing 400 is made of metal, and the inner wall of the housing 400 is covered with an electromagnetic shielding layer, thereby further reducing the influence of external electromagnetic signals on the carbon fiber bundle between the transmitter 200 and the receiver 300. Furthermore, the metal housing 400 has a certain structural strength, which can protect the internal transmitter 200 and receiver 300.

[0034] Please refer to Figure 1 and Figure 2The control unit includes a controller electrically connected to a receiver 300. The receiver 300 converts the received optical signal from the transmitter 200 into an electrical signal and transmits the electrical signal to the controller. The controller activates or deactivates the alarm unit based on changes in the electrical signal. In some optional embodiments, the controller is a computer storing sample electrical signals of carbon fiber tows in their normal state. During detection, the computer compares the electrical signal emitted by the receiver 300 with the normal sample electrical signal. If a difference is found, the computer activates the alarm unit to alert the operator. Furthermore, the computer can store sample signals of different carbon fiber tows to meet the detection requirements of different carbon fiber tows, thereby improving the compatibility and applicability of the detection device.

[0035] Please refer to Figure 1 and Figure 2 In some optional embodiments, the detection device may include multiple detection units, all of which are electrically connected to the control unit. The multiple detection units are respectively installed on multiple winding machines to simultaneously detect multiple carbon fiber bundles in multiple positions, thereby further improving detection efficiency.

[0036] In summary, the implementation principle of the online detection device for carbon fiber tow flipping and twisting provided by this utility model is as follows: the carbon fiber tow is driven to pass through the gap between the transmitter 200 and the receiver 300. The carbon fiber tow blocks the light signal emitted by the transmitter 200 towards the receiver 300. Since the width of the carbon fiber tow changes when it flips or twists, the blocked light signal changes. When the light signal received by the receiver 300 changes, the control unit controls the alarm unit to open and alarm the operator. Thus, the flipping and twisting of the carbon fiber tow is automatically detected, which improves the problems of long inspection time, large error and low efficiency of the current manual inspection and improves the inspection effect of carbon fiber tow flipping and twisting.

[0037] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An online detection device for carbon fiber tow twisting and turning, characterized in that, include: Fixing plate; A detection unit is disposed on the fixed plate. The detection unit includes a transmitter and a receiver. There is a gap between the transmitter and the receiver for passing through a carbon fiber bundle. The transmitter is used to send an optical signal toward the receiver, and the receiver is used to receive the optical signal emitted by the transmitter. A control unit is mounted on the fixed plate and electrically connected to the receiver; An alarm unit is mounted on the fixed plate and electrically connected to the control unit.

2. The online detection device for carbon fiber tow twisting and turning according to claim 1, characterized in that, The transmitter and the receiver are symmetrically arranged on the fixed plate.

3. The online detection device for carbon fiber tow twisting and turning according to claim 1, characterized in that, The detection unit includes a through-beam photoelectric sensor, which is electrically connected to the control unit.

4. The online detection device for carbon fiber tow twisting and turning according to claim 1, characterized in that, The fixing plate has mounting holes for detachably fixing the fixing plate to the winding machine.

5. The online detection device for carbon fiber tow twisting and turning according to claim 1, characterized in that, The detection device also includes a housing, which is detachably mounted on the fixing plate and is used to cover the detection unit.

6. The online detection device for carbon fiber tow twisting and turning according to claim 5, characterized in that, The outer shell is made of metal, and the inner wall of the outer shell is covered with an electromagnetic shielding layer.

7. The online detection device for carbon fiber tow twisting and turning according to claim 5, characterized in that, The outer shell has through holes for passing through carbon fiber bundles.

8. The online detection device for carbon fiber tow twisting and turning according to claim 5, characterized in that, The outer casing has an outlet hole for cable to pass through.

9. The online detection device for carbon fiber tow twisting and turning according to claim 1, characterized in that, The control unit includes a controller electrically connected to the receiver. The receiver converts the received optical signal into an electrical signal and transmits the electrical signal to the controller. The controller controls the alarm unit to start or stop based on the electrical signal.

10. The online detection device for carbon fiber tow twisting and turning according to claim 1, characterized in that, The detection device includes multiple detection units, and the control unit is electrically connected to the multiple detection units.

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