CN-224212860-U - Automatic barrel changing detection device of drawing frame

CN224212860UCN 224212860 UCN224212860 UCN 224212860UCN-224212860-U

Abstract

The utility model discloses an automatic barrel changing detection device of a drawing frame, which belongs to the technical field of barrel changing detection of drawing frames and comprises a barrel in-situ detection sensor, a manual barrel changing confirmation module, a control circuit and a starting device, wherein the barrel in-situ detection sensor is arranged on one side of a barrel changing station and is used for detecting whether a barrel is in place and outputting a shielding signal, the manual barrel changing confirmation module is arranged on an operation panel and is used for triggering a barrel changing completion signal in a stop state, the control circuit is electrically connected with the barrel in-situ detection sensor and the manual barrel changing confirmation module, and comprises an interlocking logic unit and a driving unit, and the starting device is connected with the driving unit of the control circuit and is used for driving the drawing frame to operate. The utility model can identify the full barrel state in real time and trigger the stop command through the non-contact detection of the barrel in-situ detection sensor, and combines the triple interlocking logic of the manual barrel changing confirmation module and the barrel changing time window to reliably block the path which is started by mistake when the barrel is not changed from the circuit level, thereby avoiding the cotton sliver accumulation problem caused by the connection of the empty barrel.

Inventors

Tian Pingsen
LI GUOXU
ZHANG JIZHE

Assignees

新乡市正元纺织有限公司

Dates

Publication Date: 20260508
Application Date: 20250529

Claims (10)

1. Automatic barrel detection device that trades of drawing frame, its characterized in that includes: the barrel in-place detection sensor is arranged at one side of the barrel changing station and is used for detecting whether the barrel is in place or not and outputting a shielding signal; The manual barrel changing confirmation module is arranged on the operation panel and is used for triggering a barrel changing completion signal in a stop state; The control circuit is electrically connected with the barrel in-place detection sensor and the manual barrel replacement confirmation module and comprises an interlocking logic unit and a driving unit; The starting device is connected with the driving unit of the control circuit and is used for driving the drawing frame to operate; Wherein the interlock logic unit is configured to: When the barrel in-place detection sensor continuously detects a barrel in-place signal, judging that the barrel is in a full barrel state, triggering a stop instruction and cutting off a power supply loop of the starting device; And only when the barrel in-place detection sensor detects a barrel removal signal and the manual barrel changing confirmation module is triggered, and after a preset barrel changing time window passes, the driving unit of the control circuit recovers the power supply loop through the self-locking relay and allows starting, wherein the self-locking relay maintains a self-locking state after the power supply loop is conducted until the barrel in-place detection sensor detects the barrel in-place signal again.
2. The automatic drum change detection device of drawing frame according to claim 1, wherein the drum change time window is set by a timer module of the PLC controller for a time range of 5 to 30 seconds, and the timer is started only when the drum removal signal is simultaneously valid with the manual drum change confirmation signal.
3. The automatic drum changing detection device of drawing frame according to claim 1, wherein the drum in-place detection sensor is a reflective laser sensor, is installed inside the drawing frame head at the side of the drum changing station, and has a detection direction perpendicular to the drum moving path and a detection distance of 10-30cm.
4. The drawing frame automatic bucket change detection device according to claim 1, wherein the interlocking logic unit is implemented by a PLC controller, and the following program is preset in the PLC controller: when the bucket in-place signal jumps from high level to low level and the manual bucket change confirmation signal (I22) keeps high level for more than or equal to 1 second, starting the bucket change time window to count down; If the bucket in-place signal is not detected to be recovered before the countdown is finished, starting is allowed; If the bucket in the countdown period is recovered in the bit signal, the timing is reset and the starting device is locked.
5. The drawing frame automatic drum change detection device according to claim 1, wherein the control circuit comprises a latching relay that maintains a latching state after the power supply loop is turned on until the drum presence detection sensor detects the drum presence signal again.
6. The drawing frame automatic drum change detection device of claim 4, further comprising a drum change action integrity verification module configured to: and in the barrel changing time window, monitoring the stability of the barrel in-place signal in real time, and judging that the barrel changing action is abnormal and triggering an alarm if the signal fluctuation exceeds a preset threshold value.
7. The automatic drum replacement detection device of drawing frame according to claim 1, wherein the signal of the manual drum replacement confirmation module and the drum removal signal of the drum in-place detection sensor form and gate logic through a PLC internal logic unit or a hardware and gate circuit, and the timing result of the drum replacement time window is accessed into a starting loop through the or gate logic.
8. The drawing frame automatic drum change detection device according to claim 1, wherein the control circuit further comprises an anti-interference circuit, the circuit comprising: An optocoupler isolator for isolating electrical noise in the sensor signal; A digital filter filters out impulse disturbances shorter than 0.5 seconds.
9. The automatic barrel changing detection device of drawing frame according to claim 1, further comprising an alarm device, wherein when the barrel changing operation is not completed or an abnormal signal is detected within the barrel changing time window, the control circuit drives the alarm device to send out an audible and visual prompt and lock the starting device.
10. The automatic drum change detection device of the drawing frame according to claim 1, wherein the driving unit of the control circuit comprises a bistable relay, a first contact of the relay is connected in series with a power supply loop of the starting device, a second contact of the relay is connected to the alarm device, and when the interlocking logic unit judges that the drum change is not completed, the first contact is opened and the second contact is closed to trigger an alarm.

Description

Automatic barrel changing detection device of drawing frame Technical Field The utility model relates to the technical field of drawing frame barrel replacement detection, in particular to an automatic barrel replacement detection device of a drawing frame. Background In the textile industry, drawing frames are critical devices for combining, drawing sliver or other fiber sliver to improve sliver uniformity. In the production process of the drawing frame, the barrel changing operation is an indispensable link, namely, when the cotton sliver collecting barrel is full, an empty barrel needs to be manually changed to maintain continuous production. The barrel changing process of the traditional drawing frame mainly depends on manual judgment and operation. When the staff fails to replace the full barrel in time or forgets to execute the barrel replacement action, if the start button is touched by mistake, the machine can continue to run under the condition that no empty barrel is accepted, and cotton slivers are accumulated in the sliver outlet or the collecting barrel. The situation not only causes material waste and cotton sliver quality damage, but also can cause equipment part damage due to mechanical overload, and even affects the production quality of subsequent procedures. The existing control circuit is not provided with a real-time detection device for the barrel state, or only adopts a traditional detection mode such as a mechanical contact and the like. For example, some devices detect the existence of a barrel through a mechanical contact switch, but the switch is easy to fail due to cotton wool accumulation and mechanical abrasion, so that a detection signal is unreliable, and in addition, a mechanical contact cannot feed back whether the barrel replacement is completed or not in real time, so that the possibility of false start is difficult to be blocked directly from a circuit level. The problem that the material that the mistake starts to lead to piles up needs to shut down the clearance, has increased workman's intensity of labour and production line downtime, and the material of piling up simultaneously probably causes equipment operation anomaly, exists the potential safety hazard. Based on the above, the utility model designs an automatic barrel changing detection device of a drawing frame to solve the above problems. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model provides an automatic barrel changing detection device of a drawing frame. In order to achieve the above purpose, the utility model is realized by the following technical scheme: an automatic barrel changing detection device of a drawing frame, comprising: The barrel in-place detection sensor (I16) is arranged at one side of the barrel changing station and is used for detecting whether the barrel is in place or not and outputting a shielding signal; The manual barrel changing confirming module (I22) is arranged on the operation panel and is used for triggering a barrel changing completion signal in a stop state; The control circuit is electrically connected with the barrel in-place detection sensor (I16) and the manual barrel replacement confirmation module (I22), and comprises an interlocking logic unit and a driving unit; the starting device (M4) is connected with the driving unit of the control circuit and is used for driving the drawing frame to operate; The interlocking logic unit is configured to judge a full barrel state when the barrel in-place detection sensor continuously detects a barrel in-place signal, trigger a stop instruction and cut off a power supply loop of the starting device, and only when the barrel in-place detection sensor detects a barrel removal signal and the manual barrel replacement confirmation module is triggered and a preset barrel replacement time window passes, the driving unit of the control circuit recovers the power supply loop through the self-locking relay and allows starting, wherein in the barrel replacement time window, if the barrel in-place signal fluctuation rate of 3 continuous periods (100 ms per period) is more than 10%, the starting process is interrupted and the alarm is triggered. The interlocking logic unit comprises an AND gate circuit (IC 1), and the input end of the AND gate circuit is respectively connected with a signal wire of the barrel in-place detection sensor and a signal wire of the manual barrel replacement confirmation module. Still further, the barrel change time window is set by a timer module of the PLC controller for a time range of 5-30 seconds, and the timer is started only when the barrel removal signal is simultaneously valid with the manual barrel change confirmation signal. Further, the barrel in-place detection sensor (I16) is a reflective laser sensor, is arranged on the inner side of the drawing frame head at the side edge of the barrel changing station, is vertical to the barrel moving path in the detectio