Carbon fiber bobbin creel yarn releasing drum stalling detection system

Abstract

The utility model relates to a system for detecting stalling of a yarn releasing drum of a carbon fiber bobbin creel, and belongs to the technical field of fiber reinforced resin matrix composites. The yarn releasing barrel is rotationally arranged on the base; the protective sleeve is coaxially fixed at one end of the yarn releasing barrel; the sensed piece is fixed on the inner side of the protective sleeve; the proximity switch is arranged on the base and located on the inner side of the sensed part; the control module is in signal connection with the proximity switch; and the alarm is in signal connection with the control module. Stop of the yarn releasing barrel is detected through mutual cooperation of the proximity switch and the inducted part, the response speed is high, compared with traditional manual detection, the detection precision and flexibility are higher, a non-contact structure is adopted, abrasion of a detection part is avoided, no spark or noise is generated, and the service life is long.

Description

Technical Field

[0001] This application relates to the field of fiber-reinforced resin matrix composites, and particularly to a detection system for detecting the stoppage of a yarn unwinding cylinder on a carbon fiber creel. Background Art

[0002] In the field of composite materials, according to the process requirements, a multi-axis carbon fiber filament is unwound on a creel of a carbon fiber creel, and it is necessary to detect whether the yarn unwinding cylinder rotates. If the yarn unwinding cylinder stops rotating, it needs to be processed in time. Currently, the above detection is carried out by manual observation, which has a large labor intensity, is time-consuming and laborious, and it is difficult to ensure the accuracy of detection. Utility Model Content

[0003] In order to reduce the labor intensity and improve the accuracy of stoppage detection, this application provides a detection system for detecting the stoppage of a yarn unwinding cylinder on a carbon fiber creel.

[0004] A detection system for detecting the stoppage of a yarn unwinding cylinder on a carbon fiber creel provided by this application adopts the following technical solutions:

[0005] A detection system for detecting the stoppage of a yarn unwinding cylinder on a carbon fiber creel includes:

[0006] A base;

[0007] A yarn unwinding cylinder rotatably arranged on the base;

[0008] A protective sleeve coaxially fixed to one end of the yarn unwinding cylinder;

[0009] A sensed member fixed to the inner side of the protective sleeve;

[0010] A proximity switch arranged on the base and located inside the sensed member;

[0011] A control module signal-connected to the proximity switch;

[0012] An alarm signal-connected to the control module.

[0013] By adopting the above technical solution, when the yarn unwinding cylinder rotates, it drives the protective sleeve to rotate, and the rotation of the protective sleeve drives the sensed part to rotate. During the above rotation process, the sensed part cooperates with the proximity switch. When the operating distance between the sensed part and the proximity switch is the set detection distance, the proximity switch generates a pulse signal and sends it to the control module. When the yarn unwinding cylinder stops rotating, the proximity switch no longer generates a pulse signal or the interval time between two adjacent pulse signals is too long. The control module sends a command signal to the alarm, and the alarm gives an alarm after receiving the command signal to prompt the staff to deal with the stop rotation fault in time. In this application, the stop rotation of the yarn unwinding cylinder is detected through the mutual cooperation of the proximity switch and the sensed part, with a fast response speed. Compared with traditional manual detection, its detection accuracy and flexibility are higher, and a non-contact structure is adopted, avoiding the wear of the detection components, and having no sparks and no noise, with a long service life.

[0014] Optionally, it further includes a display module, and the display module is signal-connected to the control module.

[0015] By adopting the above technical solution, the control module can feedback the location of the yarn unwinding cylinder that has stopped rotating on the bobbin rack to the display module, and the display module thus displays the area information where the stopped rotating yarn unwinding cylinder is located, facilitating the staff to deal with the fault in time.

[0016] Optionally, the proximity switch is detachably fixed to the base.

[0017] By adopting the above technical solution, when the proximity switch is damaged or fails, the proximity switch can be disassembled and replaced, which is convenient for extending the service life of this detection system.

[0018] Optionally, a bending plate is provided on the base, one side of the bending plate is fixed to the base through a first fastener, and the proximity switch is fixed to the other side of the bending plate through a second fastener.

[0019] Optionally, a cleaning mechanism for cleaning the outer surface of the sensed part is provided on the base, and the cleaning mechanism is located inside the protective sleeve.

[0020] By adopting the above technical solution, the cleaning mechanism can clean the surface of the sensed part, prevent the surface of the sensed part from being caked with dust after being dusty for a long time, ensure the cleanliness of the surface of the sensed part, and extend the service life of the sensed part.

[0021] Optionally, the cleaning mechanism includes a cleaning brush and a telescopic member. One end of the telescopic member is fixed to the base, and the other end is fixed to the cleaning brush. The bristles of the cleaning brush have a certain flexibility, and the telescopic member can drive the cleaning brush to switch between a first position and a second position;

[0022] When the yarn feeding cylinder rotates and the cleaning brush is in the first position, the cleaning brush does not contact the sensed member;

[0023] When the yarn feeding cylinder rotates and the cleaning brush is in the second position, the bristles of the cleaning brush contact the sensed member.

[0024] By adopting the above technical solution, when it is necessary to clean the sensed member, the telescopic member drives the cleaning brush to switch from the first position to the second position. When the yarn feeding cylinder rotates, the sensed member rotates accordingly. During the rotation of the sensed member, it sweeps past the bristles of the cleaning brush, so that the dust adhering to the surface is brushed off by the cleaning brush. After the cleaning is completed, the telescopic member drives the cleaning brush to switch back to the first position, reducing the mutual wear between the cleaning brush and the sensed member.

[0025] Optionally, a protective coating is provided on the surface of the sensed member.

[0026] By adopting the above technical solution, the protective coating can prevent the sensed member from directly contacting the outside world, thereby avoiding surface oxidation and corrosion and improving the service life of the sensed member.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Through the settings of the sensed member, proximity switch, control module, and alarm, when the yarn feeding cylinder rotates, it drives the protective sleeve to rotate, and the rotation of the protective sleeve drives the sensed member to rotate. During the above rotation process, the sensed member cooperates with the proximity switch. When the operating distance between the sensed member and the proximity switch member is the set detection distance, the proximity switch generates a pulse signal and sends it to the control module. When the yarn feeding cylinder stops rotating, the proximity switch no longer generates a pulse signal or the interval time between adjacent two pulse signals is too long. The control module sends a command signal to the alarm, and the alarm alarms after receiving the command signal to prompt the staff to handle the stop rotation fault. The present application detects the stop rotation of the yarn feeding cylinder through the mutual cooperation of the proximity switch and the sensed member, with a fast response speed. Compared with traditional manual detection, its detection accuracy and flexibility are higher, and it adopts a non-contact structure, avoiding the wear of detection components, and having no sparks and no noise, with a long service life.

[0029] 2. Through the setting of the display module, the control module can feedback the position of the yarn feeding cylinder that has stopped rotating on the bobbin holder to the display module, and the display module thus displays the area information of the stopped rotating yarn feeding cylinder, facilitating the staff to handle the fault in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application.

[0031] Figure 2It is a control schematic diagram of the control module in Embodiment 1 of the present application.

[0032] Figure 3 It is a structural schematic diagram showing the connection relationship between the proximity switch and the base in Embodiment 1 of the present application.

[0033] Figure 4 It is a structural schematic diagram of the cleaning mechanism in Embodiment 2 of the present application.

[0034] Figure 5 It is a cross-sectional view of the sensed part in Embodiment 2 of the present application.

[0035] Explanation of reference numerals: 1. Base; 11. Bending plate; 12. First fastener; 13. Second fastener; 2. Yarn feeding cylinder; 3. Protective sleeve; 4. Sensed part; 41. Protective coating; 5. Proximity switch; 6. Control module; 7. Alarm; 8. Display module; 9. Cleaning mechanism; 91. Cleaning brush; 92. Telescopic member. Detailed implementation manners

[0036] The following will further describe the present application in detail Figures 1-5 in conjunction with the attached drawings.

[0037] Embodiment 1:

[0038] Embodiment 1 of the present application discloses a detection system for the rotation stop of a yarn feeding cylinder of a carbon fiber creel. Referring to Figures 1-2 , a detection system for the rotation stop of a yarn feeding cylinder of a carbon fiber creel includes a base 1 and a yarn feeding cylinder 2. The yarn feeding cylinder 2 is arranged on the base 1, and one end of the yarn feeding cylinder 2 is coaxially and fixedly connected with a protective sleeve 3. A sensed part 4 is adhesively fixed on the inner side wall of the protective sleeve 3, and the number of the sensed parts 4 can be one, two or more. A proximity switch 5 is installed on the base 1, and the proximity switch 5 is located inside the sensed part 4. For facilitating the transmission of detection signals, the detection system further includes a control module 6 and an alarm 7, and the control module 6 is respectively in signal connection with the proximity switch 5 and the alarm 7. In Embodiment 1 of the present application, the control module 6 is a PLC, and the alarm 7 is an audible and visual alarm 7.

[0039] When the yarn feeding cylinder 2 rotates, it drives the protective sleeve 3 to rotate, and the rotation of the protective sleeve 3 drives the sensed part 4 to rotate. During the above rotation process, the sensed part 4 cooperates with the proximity switch 5. When the action distance between the sensed part 4 and the proximity switch 5 is the set detection distance, the proximity switch 5 generates a pulse signal and sends it to the control module 6. When the yarn feeding cylinder 2 stops rotating, the proximity switch 5 no longer generates a pulse signal or the interval time between two adjacent pulse signals is too long. The control module 6 sends a command signal to the alarm 7, and after receiving the command signal, the alarm 7 gives an alarm to prompt the staff to handle the rotation stop fault in time.

[0040] In the first embodiment, the proximity switch 5 is a Hall switch or an optoelectronic switch. When the proximity switch 5 is a Hall switch, the sensed member 4 is a magnetic element; when the proximity switch 5 is an optoelectronic switch, the sensed member 4 is a light-blocking element or a light-reflecting element.

[0041] In this application, the rotation stop of the yarn unwinding cylinder is detected through the mutual cooperation of the proximity switch 5 and the sensed member 4, with a fast response speed. Compared with traditional manual detection, its detection accuracy and flexibility are higher. Moreover, it adopts a non-contact structure, avoiding the wear of the detection components, and having no sparks and no noise, with a longer service life.

[0042] Refer to Figure 2 , the detection system further includes a display module 8, and the display module 8 is signal-connected to the control module 6. In the first embodiment, the display module 8 is a touch screen. In this way, the control module 6 can feedback the location of the yarn unwinding cylinder that has stopped rotating on the creel to the display module 8, and the display module 8 thus displays the area information of the stopped yarn unwinding cylinder, facilitating the staff to handle the fault in a timely manner.

[0043] Refer to Figure 3 , a bending plate 11 is provided on the base 1. One side of the bending plate 11 is fixed to the base 1 through a first fastener 12, and the proximity switch 5 is fixed to the other side of the bending plate 11 through a second fastener 13. In the first embodiment, the first fastener 12 is an internal hexagonal bolt, and the second fastener 13 is a screw and a nut. In this way, the proximity switch 5 is detachably fixed to the base 1. When the proximity switch 5 is damaged or fails, the proximity switch 5 can be disassembled and replaced, facilitating the extension of the service life of the detection system.

[0044] Embodiment 2:

[0045] Embodiment 2 of this application discloses a detection system for the rotation stop of a yarn unwinding cylinder on a carbon fiber creel. Refer to Figure 4 , the difference from the first embodiment is that: a cleaning mechanism 9 for cleaning the outer surface of the sensed member 4 is further provided on the base 1, and the cleaning mechanism 9 is located inside the protective sleeve 3. The cleaning mechanism 9 can clean the surface of the sensed member 4, preventing the surface of the sensed member 4 from becoming hard due to long-term dust accumulation, ensuring the cleanliness of the surface of the sensed member 4, and being beneficial to extending the service life of the sensed member 4.

[0046] Refer to Figure 4, the cleaning mechanism 9 includes a cleaning brush 91 and a telescopic member 92. One end of the telescopic member 92 is fixed to the base 1, and the other end is fixed to the cleaning brush 91. The bristles of the cleaning brush 91 have a certain flexibility, and the telescopic member 92 can drive the cleaning brush 91 to switch between a first position and a second position; when the yarn feeding cylinder 2 rotates and the cleaning brush 91 is in the first position, the cleaning brush 91 does not contact the sensed member 4; when the yarn feeding cylinder 2 rotates and the cleaning brush 91 is in the second position, the bristles of the cleaning brush 91 contact the sensed member 4. In the second embodiment, the telescopic member 92 is an electric telescopic rod.

[0047] When it is necessary to clean the sensed member 4, the telescopic member 92 drives the cleaning brush 91 to switch from the first position to the second position. When the yarn feeding cylinder 2 rotates, the sensed member 4 rotates accordingly. During the rotation of the sensed member 4, it sweeps past the bristles of the cleaning brush 91, so that the dust adhering to the surface is brushed off by the cleaning brush 91. After the cleaning is completed, the telescopic member 92 drives the cleaning brush 91 to switch back to the first position, reducing the mutual wear between the cleaning brush 91 and the sensed member 4.

[0048] Referring to Figure 5 , to further improve the service life of the sensed member 4, a protective coating 41 is provided on the surface of the sensed member 4. In the second embodiment, the protective coating 41 is an epoxy resin coating, which can prevent the sensed member 4 from directly contacting the outside world, thereby avoiding surface oxidation and corrosion.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A yarn stop detection system for a carbon fiber creel, characterized in that, Including: Base (1); Yarn unwinding cylinder (2), rotatably arranged on the base (1); Protective sleeve (3), coaxially fixed to one end of the yarn unwinding cylinder (2); Inductive element (4), fixed to the inner side of the protective sleeve (3); Proximity switch (5), arranged on the base (1) and located inside the inductive element (4); Control module (6), signal-connected to the proximity switch (5); Alarm (7), signal-connected to the control module (6).

2. The yarn storage creel yarn feeding bobbin stop rotation detection system according to claim 1, wherein: It further includes a display module (8), and the display module (8) is signal-connected to the control module (6).

3. A yarn feeding bobbin holder yarn stop detection system according to claim 1, characterized in that: The proximity switch (5) is detachably fixed to the base (1).

4. The yarn stop detection system for a carbon fiber creel according to claim 3, characterized in that: A bending plate (11) is provided on the base (1). One side of the bending plate (11) is fixed to the base (1) through a first fastener (12), and the proximity switch (5) is fixed to the other side of the bending plate (11) through a second fastener (13).

5. A yarn stop detection system for a carbon fiber creel according to claim 1, characterized in that: A cleaning mechanism (9) for cleaning the outer surface of the inductive element (4) is provided on the base (1), and the cleaning mechanism (9) is located inside the protective sleeve (3).

6. The yarn stop detection system for a carbon fiber creel according to claim 5, wherein: The cleaning mechanism (9) includes a cleaning brush (91) and a telescopic member (92). One end of the telescopic member (92) is fixed to the base (1), and the other end is fixed to the cleaning brush (91). The bristles of the cleaning brush (91) have a certain flexibility, and the telescopic member (92) can drive the cleaning brush (91) to switch between a first position and a second position; When the yarn unwinding cylinder (2) rotates and the cleaning brush (91) is in the first position, the cleaning brush (91) does not contact the inductive element (4); When the yarn unwinding cylinder (2) rotates and the cleaning brush (91) is in the second position, the bristles of the cleaning brush (91) contact the inductive element (4).

7. A yarn stop detection system for a carbon fiber creel according to claim 1, characterized in that: A protective coating (41) is provided on the surface of the inductive element (4).

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