CN212025577U - Crochet hook machine aircraft nose alarm device - Google Patents
Crochet hook machine aircraft nose alarm device Download PDFInfo
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- CN212025577U CN212025577U CN202020410899.5U CN202020410899U CN212025577U CN 212025577 U CN212025577 U CN 212025577U CN 202020410899 U CN202020410899 U CN 202020410899U CN 212025577 U CN212025577 U CN 212025577U
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- electrolytic capacitor
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Abstract
The utility model relates to the technical field of crochet machines, and discloses a crochet machine head alarm device, which comprises a receiving module, a lead ring and a control module, wherein the receiving module is used for receiving charges on a knitting line and the knitting line passes through the lead ring; the detection module is electrically connected with the lead wire ring and used for detecting the electric charge acquired on the lead wire ring; and the alarm module is electrically connected with the detection module and used for responding to the detection module to detect the electric charge. The utility model discloses have the effect that can detect whether the braided wire splits and report to the police.
Description
Technical Field
The utility model belongs to the technical field of crochet hook machine technique and specifically relates to a crochet hook machine aircraft nose alarm device is related to.
Background
Referring to fig. 2, a machine 9 of the crochet machine is used for knitting a knitting wire on the crochet machine, a fixing frame 10 is arranged on the machine head 9, a lead hole 11 for the knitting wire to pass through is arranged on the fixing frame 10, and a lead ring 2 which is used for guiding the knitting wire and is made of a metal material is further arranged on the fixing frame 10. Generally, the wire loop 2 is made of stainless steel and the braided wire is made of polypropylene. Stipulating: friction is generated between the polypropylene and the lead ring, so that the braided wire has negative charges.
The existing machine head of a crochet hook machine disclosed in Chinese patent with patent publication No. CN206591241U comprises a connecting column, a belt pulley, a needle inserter, a plurality of crochet hooks, a fixing frame, a wire inlet and a wire leading hook, wherein one end of the wire leading hook positioned above the crochet hook is bent to form an annular wire leading ring, an annular first ceramic guide nozzle is embedded in the wire leading ring, and a rubber ring used for being buckled on an inner ring of the wire leading ring is embedded in the outer wall of the first ceramic guide nozzle.
The above prior art solutions have the following drawbacks: although the rubber ring can generate tiny deformation to buffer the tension on the yarn and reduce the condition that the yarn is broken, the friction force of the yarn passing through the lead ring is increased by the rubber ring, the yarn is worn, and the yarn is still easy to break when the speed of the yarn passing through the lead ring is high; after the yarn is broken, the equipment needs to be powered off, and the yarn can continue to work again by leading, but as a plurality of groups of machine heads are generally arranged on the crochet machine and a plurality of devices work simultaneously, a worker needs to stare at the machine head to break the yarn or not, in the practical situation, in consideration of the conditions of manpower and material resources, one worker generally needs to check a plurality of devices simultaneously, so that the condition that the yarn is broken or not in time is found, and therefore an alarm device is needed to prompt the worker to timely handle the broken machine head.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a crochet hook machine aircraft nose alarm device that can detect whether the braided wire splits and reports to the police.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a crochet machine head alarm device comprises a receiving module, a receiving module and a control module, wherein the receiving module is used for receiving charges on a knitting wire and comprises a lead ring, and the knitting wire penetrates through the lead ring; the detection module is electrically connected with the lead wire loop and used for detecting the electric charge acquired on the lead wire loop; and the alarm module is electrically connected with the detection module and used for responding to the detection of the electric charge by the detection module.
By adopting the technical scheme, when the braided wire passes through the lead wire ring, the braided wire rubs against the lead wire ring, the braided wire obtains electric charges in the rubbing process, the electric charges are transferred to the lead wire ring and are conducted to the detection module, if the detection module can detect the existence of the electric charges, the braided wire is not broken, and the alarm module cannot be triggered; when the braided wire is broken, the lead ring and the braided wire do not generate friction, the lead ring cannot detect electric charges, the braided wire is abnormal, and the alarm module is triggered to give an alarm.
The present invention may be further configured in a preferred embodiment as: the receiving module further comprises a negative ion generator, the negative ion generator is located between the lead port and the lead ring, and the negative ion generator is aligned to the braided wire to blow ions, so that the braided wire is provided with negative charges.
Through adopting above-mentioned technical scheme, anion generator has guaranteed to have negative charge on the braided wire for the negative charge trades through the lead wire and conducts to electric capacity, makes the electric capacity discharge rapidly, thereby conveniently judges whether braided wire is normal.
The present invention may be further configured in a preferred embodiment as: and an insulating layer for isolating external charges is arranged at the lead ring.
Through adopting above-mentioned technical scheme, the insulating layer is favorable to completely cutting off the interference of external environment to the lead wire ring for the electric charge conduction on the lead wire ring is mostly because the electric charge on the braided wire arouses, is favorable to improving the accuracy that receiving module received the electric charge.
The present invention may be further configured in a preferred embodiment as: the insulating layer is arranged as an air bag layer, and the inner side of the lead ring is in direct contact with the braided wire.
Through adopting above-mentioned technical scheme, the electric charge on the gasbag layer surface can not freely conduct, need discharge through the contact to the electric charge that is favorable to isolated external environment to the interference of lead wire ring, thereby is favorable to improving the accurate rate that receiving module received the electric charge.
The present invention may be further configured in a preferred embodiment as: the insulating layer is arranged as a thin film layer, and the inner side of the lead ring is in direct contact with the braided wire.
Through adopting above-mentioned technical scheme, the electric charge on the surface of thin layer can not freely conduct, need discharge through the contact to the electric charge that is favorable to completely cutting off external environment is to the interference of lead ring, thereby is favorable to improving the accurate rate that receiving module received the electric charge, and the thin film material easily acquires, convenient operation, and with low costs.
The present invention may be further configured in a preferred embodiment as: the detection module comprises a direct-current power supply E, the positive electrode of the direct-current power supply E is electrically connected with a timing switch, the other end of the timing switch is electrically connected with the positive electrode of an electrolytic capacitor C, the negative electrode of the electrolytic capacitor C is electrically connected with one end of a resistor R0 used for limiting current, the other end of the resistor R0 is electrically connected with the negative electrode of the direct-current power supply E, a lead ring is electrically connected with the electrolytic capacitor C and a connecting point between the timing switches, and the negative electrode of the electrolytic capacitor C is grounded.
By adopting the technical scheme, the electrolytic capacitor C is intermittently charged by the direct-current power supply E by adopting the timing switch, and when the timing switch is in an open state, the electrolytic capacitor C is charged by the direct-current power supply E; when the timing switch is in an off state, the electrolytic capacitor C discharges, and under the ordinary condition, the discharging process of the electrolytic capacitor C is a slow discharging process; when the lead wire loop is connected into the circuit and the braided wire is normal, the lead wire loop receives negative charges from the braided wire, the discharge time of the electrolytic capacitor C is shortened, and the voltage at two ends of the electrolytic capacitor C is sharply reduced; in the discharging process of the electrolytic capacitor C, when the braided wire is broken, negative charges from the braided wire are not received on the lead ring, the electrolytic capacitor C normally and slowly discharges, and the voltage at the two ends of the electrolytic capacitor C is close to a stable voltage.
The present invention may be further configured in a preferred embodiment as: the alarm module comprises a comparison circuit, wherein the reverse input end of the comparison circuit is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with the anode of the electrolytic capacitor C, and the same-direction input end of the comparison circuit is electrically connected with one end of a resistor R2;
one end of the timing switch, which is far away from the positive electrode of the direct current power supply E, is electrically connected with one end of a resistor R3, the other end of the resistor R3 is electrically connected with one end of a resistor R4, the other end of the resistor R4 is grounded, and the ground of the resistor R4 is grounded together with the ground of the electrolytic capacitor C;
one end of the resistor R2, which is far away from the equidirectional input end of the comparison circuit, is connected to the connection point between the resistor R3 and the resistor R4;
the output end of the comparison circuit is electrically connected with one end of a resistor R5, the other end of the resistor R5 is electrically connected with the anode of a warning element, the cathode of the warning element is grounded, and the ground of the warning element and the ground of the electrolytic capacitor C are grounded.
By adopting the technical scheme, the alarm module accesses the voltage of the electrolytic capacitor C into the comparison circuit for comparison, when the voltage on the electrolytic capacitor C is lower than a preset voltage value, the output end of the comparison circuit outputs high voltage, and when the electrolytic capacitor C is continuously charged, the voltage value on the electrolytic capacitor C is higher than the preset voltage value, so that the output end of the comparison circuit outputs low voltage, and the output end of the comparison circuit outputs square wave voltage; therefore, when the braided wire is normal, the comparison circuit outputs square wave voltage, and when the braided wire is broken, the comparison circuit always outputs low level.
The present invention may be further configured in a preferred embodiment as: the warning element is set as an LED lamp.
By adopting the technical scheme, if the LED lamp is in a flashing state (in a visible range of human eyes or in a constantly bright state) after being powered on and powered off all the time, the braided wire is not broken; otherwise, when the LED lamp is not on, the braided wire is abnormal.
The present invention may be further configured in a preferred embodiment as: the warning element is set to be a buzzer.
By adopting the technical scheme, when the braided wire is normal, the output end of the comparison circuit outputs square wave voltage, the buzzer is powered on discontinuously all the time, and the buzzer is in discontinuous sound (in a recognizable range of human ears or in a state of sound all the time); when the braided wire is abnormal, the output end of the comparison circuit outputs low voltage, and the buzzer does not sound all the time when the buzzer is not electrified.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the braided wire passes through the lead ring and generates friction with the lead ring, the braided wire obtains electric charges in the friction process, the electric charges are transferred to the detection module through the lead ring, if the detection module can detect the existence of the electric charges on the lead ring, the braided wire is not broken and is in normal operation, and the alarm module is not triggered; when the braided wire is broken, the lead ring and the braided wire do not generate friction, and the lead ring cannot detect charges, so that the braided wire is abnormal, and the alarm module is triggered to alarm;
2. the timing switch enables the direct-current power supply E to intermittently charge the electrolytic capacitor C, enables the electrolytic capacitor C to discharge, and detects whether the electrolytic capacitor C discharges normally in the discharging process of the electrolytic capacitor C to judge whether the braided wire works normally; when the timing switch is in an open state, the direct current power supply E charges the electrolytic capacitor C; when the timing switch is in an off state, the electrolytic capacitor C discharges, and the normal discharging process is slow under the condition that the electrolytic capacitor C does not have external interference; when the lead wire loop is connected into the circuit and the braided wire works normally, the lead wire loop receives the charge from the braided wire, the discharge time of the electrolytic capacitor C is shortened, and the voltage at two ends of the electrolytic capacitor C is sharply reduced; in the discharging process of the electrolytic capacitor C, when the braided wire is broken, negative charges from the braided wire are not received on the lead ring, and the electrolytic capacitor C normally and slowly discharges.
Drawings
FIG. 1 is a block flow diagram of an embodiment implementing principles;
FIG. 2 is a schematic view of the overall structure of the handpiece provided in the present embodiment;
FIG. 3 is a schematic structural diagram of a receiving module in the embodiment;
FIG. 4 is a circuit diagram of an embodiment;
fig. 5 is a schematic diagram of the voltage across the electrolytic capacitor C and the voltage at the output terminal of the operational amplifier in the embodiment.
Reference numerals: 1. a receiving module; 2. a wire loop; 3. a detection module; 4. an alarm module; 5. weaving wires; 6. an insulating layer; 7. a negative ion generator; 9. a machine head; 10. a fixed mount; 11. and a lead hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a crochet hook machine aircraft nose alarm device, including receiving module 1, detection module 3 and alarm module 4 of signal connection in proper order.
Referring to fig. 2 and 3, the receiving module 1 includes an anion generator 7 for supplying anions to the braided wire 5 and a circular lead ring 2 for receiving charges on the braided wire 5. The receiving module 1 further comprises an anion generator 7, the anion generator 7 is located between the wire port and the wire loop 2, and the anion generator 7 blows ions aiming at the braided wire 5 so that the braided wire 5 has negative charges. In addition, be provided with insulating layer (not shown in the figure) between anion generator 7 and the lead ring 2, set up the hole that supplies braided wire 5 to pass on the insulating layer, braided wire 5 passes insulating layer and then passes lead ring 2 again to reduce anion generator 7 and directly blow the ion to lead ring 2, thereby improved the rate of accuracy that detection module 3 detected. The knitting yarn 5 passes through the yarn guiding loop 2 and enters the head 9 of the crochet machine. During the knitting process, the knitting wire 5 is paid out and rubbed with the lead ring 2, the lead ring 2 made of metal is charged, and the charge is transferred to the lead ring 2.
Referring to fig. 3, the lead wire loop 2 is provided with an insulating layer 6 wrapping the outer side of the lead wire loop 2, and the insulating layer 6 is provided as an air bag layer or a film layer. The insulating layer 6 reduces the interference of the charges in the external environment with the charges on the wire loop 2 received on the braided wire 5, the inner side of the wire loop 2 being exposed to be in direct contact with the braided wire 5.
Referring to fig. 2 and 4, the wire loop 2 is electrically connected to a detection module 3 for detecting the charge on the wire loop 2. The detection module 3 is electrically connected to an alarm module 4 for detecting the charge in response to the detection module 3.
Referring to fig. 5, the detection module 3 includes a dc power supply E, a positive electrode of the dc power supply E is electrically connected to a timing switch, the other end of the timing switch is electrically connected to a positive electrode of an electrolytic capacitor C, a negative electrode of the electrolytic capacitor C is electrically connected to one end of a resistor R0 for current limiting, the other end of the resistor R0 is electrically connected to a negative electrode of the dc power supply E, and the negative electrode of the electrolytic capacitor C is grounded. The lead ring 2 is electrically connected to a connection point between the electrolytic capacitor C and the time switch. In the utility model discloses in this embodiment, the circular telegram timing time t1 of time switch sets up to be greater than electrolytic capacitor C's charge time t2, and time t3 between the moment of the last disconnection of time switch and the moment of opening next time sets up to be less than electrolytic capacitor C and normally discharges to its both ends voltage value and fall to preset voltage value time t4, and is greater than electrolytic capacitor C discharge time t5 under the abrupt discharge condition. The case of the sharp discharge time is a time during which negative charges are input from the positive electrode of the capacitor C during the discharge of the capacitor C, causing the capacitor C to be rapidly discharged until the voltage drop across it becomes 0.
Referring to fig. 4, the alarm module 4 includes a comparison circuit, the reverse input end of the comparison circuit is electrically connected to one end of a resistor R1, and the other end of the resistor R1 is electrically connected to the anode of the electrolytic capacitor C. The same-direction input end of the comparison circuit is electrically connected with one end of the resistor R2, the positive electrode of the comparison circuit is electrically connected with the positive electrode of the direct-current power supply E, and the negative electrode of the comparison circuit is electrically connected with the negative electrode of the direct-current power supply E, so that the output end voltage Uo of the comparison circuit has no negative voltage, and the lowest voltage value is 0. One end of the timing switch, which is far away from the positive electrode of the direct-current power supply E, is electrically connected with one end of a resistor R3, the other end of a resistor R3 is electrically connected with one end of a resistor R4, the other end of the resistor R4 is grounded, and the ground of the resistor R4 is grounded together with the ground of the electrolytic capacitor C. One end of the resistor R2, which is far away from the equidirectional input end of the comparison circuit, is connected to the connection point between the resistor R3 and the resistor R4. The output end of the comparison circuit is electrically connected with one end of a resistor R5, the other end of the resistor R5 is electrically connected with the anode of a warning element, the cathode of the warning element is grounded, and the ground of the warning element and the ground of the electrolytic capacitor C are grounded.
The implementation principle of the embodiment is as follows: when the braided wire 5 passes through the lead wire loop 2, electric charge is obtained by friction between the braided wire 5 and the lead wire loop 2, the electric charge is transferred to the lead wire loop 2 and is conducted to the detection module 3, if the detection module 3 can detect the existence of the electric charge, the braided wire 5 is not broken, and the alarm module 4 cannot be triggered. When the braided wire 5 is broken, the lead wire ring 2 and the braided wire 5 do not generate friction, and the lead wire ring 2 cannot detect electric charges, so that the braided wire 5 is abnormal, and the alarm module 4 is triggered to give an alarm.
And a timing switch is adopted to enable the direct current power supply E to intermittently charge the electrolytic capacitor C, and when the timing switch is in a closed state, the direct current power supply E charges the electrolytic capacitor C. When the time switch is in the off state, the electrolytic capacitor C is discharged.
In general, the discharging process of the electrolytic capacitor C is a slow discharging process; when the loop 2 is connected to the circuit and the braided wire 5 is normal, the loop 2 receives negative charges from the braided wire 5, so that the discharge time of the electrolytic capacitor C is shortened, and the voltage across the electrolytic capacitor C is sharply reduced. When the voltage of the electrolytic capacitor C is lower than the preset voltage value, the output end of the comparison circuit outputs high voltage, and the warning element is in a normal display state at the moment.
If the braided wire 5 is broken in the discharging process of the electrolytic capacitor C, the lead wire loop 2 does not receive the negative charges from the braided wire 5, the electrolytic capacitor C normally and slowly discharges, and at the moment, because the two-time electrifying interval time t3 of the timing switch is less than the time t4 when the voltage value of the two ends of the electrolytic capacitor C normally discharges to be reduced to the preset voltage value, the voltage of the two ends of the electrolytic capacitor C is close to a stable voltage. At the moment, the output end of the comparison circuit is not lower than the voltage of the preset value, so that the output voltage is all low, and the warning element displays abnormity. Therefore, whether the braided wire 5 on each handpiece 9 is abnormal or not can be remotely observed, the labor is saved, and the abnormality can be timely found. Further, considering that the break time of the braided wire 5 is at the time of discharging of the electrolytic capacitor C by charging, the abnormality is generally determined by observing the abnormality at least twice.
Referring to fig. 5, the warning element is provided as an LED lamp or a buzzer. When the warning element is an LED lamp, if the braided wire 5 works normally, the comparison circuit outputs square wave voltage, and when the braided wire 5 is broken, the comparison circuit always outputs low level. If the LED lamp is turned on and off continuously and is in a flashing state (in a visible range of human eyes or in a constantly lit state), it indicates that the braided wire 5 is not broken. On the contrary, when the LED lamp is not on, it indicates that the braided wire 5 is abnormal. When the warning element is a buzzer and the braided wire 5 is normal, the output end of the comparison circuit outputs square wave voltage, the buzzer is powered on discontinuously all the time, and the buzzer is in discontinuous sound (in a range which can be identified by human ears or in a state of sound always). When the braided wire 5 is abnormal, the output end of the comparison circuit outputs low voltage, and the buzzer does not sound all the time when the buzzer is not electrified.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a crochet hook machine aircraft nose alarm device which characterized in that: the method comprises the following steps:
-a receiving module (1) for receiving an electric charge on a braided wire (5), comprising a wire loop (2), through which wire loop (2) the braided wire (5) is passed;
the detection module (3) is electrically connected with the lead wire loop (2) and is used for detecting the electric charge acquired on the lead wire loop (2);
and the alarm module (4) is electrically connected with the detection module (3) and is used for responding to the detection of the electric charge by the detection module (3).
2. The crochet machine head alarm device of claim 1, wherein: the receiving module (1) further comprises an anion generator (7), the anion generator (7) is located between the wire port and the wire loop (2), and the anion generator (7) is aligned to the braided wire (5) to blow ions, so that the braided wire (5) is provided with negative charges.
3. The crochet machine head alarm device of claim 2, wherein: and an insulating layer (6) for isolating external charges is arranged at the lead ring (2).
4. The crochet machine head alarm device of claim 3, wherein: the insulating layer (6) is arranged as an air bag layer, and the inner side of the lead wire ring (2) is in direct contact with the braided wire (5).
5. The crochet machine head alarm device of claim 3, wherein: the insulating layer (6) is arranged as a thin film layer, and the inner side of the lead ring (2) is in direct contact with the braided wire (5).
6. The crochet machine head alarm device of claim 1, wherein: the detection module (3) comprises a direct-current power supply E, the positive pole of the direct-current power supply E is electrically connected with a timing switch, the other end of the timing switch is electrically connected with the positive pole of an electrolytic capacitor C, the negative pole of the electrolytic capacitor C is electrically connected with one end of a resistor R0 used for limiting current, the other end of the resistor R0 is electrically connected with the negative pole of the direct-current power supply E, a lead ring (2) is electrically connected with the electrolytic capacitor C and the connecting point between the timing switches, and the negative pole of the electrolytic capacitor C is grounded.
7. The crochet machine head alarm device of claim 6, wherein: the alarm module (4) comprises a comparison circuit, wherein the reverse input end of the comparison circuit is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with the anode of the electrolytic capacitor C, and the same-direction input end of the comparison circuit is electrically connected with one end of a resistor R2;
one end of the timing switch, which is far away from the positive electrode of the direct current power supply E, is electrically connected with one end of a resistor R3, the other end of the resistor R3 is electrically connected with one end of a resistor R4, the other end of the resistor R4 is grounded, and the ground of the resistor R4 is grounded together with the ground of the electrolytic capacitor C;
one end of the resistor R2, which is far away from the equidirectional input end of the comparison circuit, is connected to a connection point between the resistor R3 and the resistor R4;
the output end of the comparison circuit is electrically connected with one end of a resistor R5, the other end of the resistor R5 is electrically connected with the anode of a warning element, the cathode of the warning element is grounded, and the ground of the warning element and the ground of the electrolytic capacitor C are grounded.
8. The crochet machine head alarm device of claim 7, wherein: the warning element is set as an LED lamp.
9. The crochet machine head alarm device of claim 7, wherein: the warning element is set to be a buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410899.5U CN212025577U (en) | 2020-03-26 | 2020-03-26 | Crochet hook machine aircraft nose alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410899.5U CN212025577U (en) | 2020-03-26 | 2020-03-26 | Crochet hook machine aircraft nose alarm device |
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| Publication Number | Publication Date |
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| CN212025577U true CN212025577U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020410899.5U Active CN212025577U (en) | 2020-03-26 | 2020-03-26 | Crochet hook machine aircraft nose alarm device |
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|---|---|
| CN (1) | CN212025577U (en) |
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- 2020-03-26 CN CN202020410899.5U patent/CN212025577U/en active Active
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