CN115813071B - Duckbill mask automatic production device and control system thereof - Google Patents

Abstract

The invention provides an automatic production device of a duckbill mask and a control system thereof, wherein the control unit in the control system determines error grades according to sensing data acquired by each sensing unit, state parameters of a motor and pause signals, and further correspondingly makes different countermeasures according to different error grades, so that the number of times of full line shutdown caused by errors is reduced, a part of raw materials in processing can be lost due to each full line shutdown, the number of times of full line shutdown can be reduced, the waste of raw materials can be reduced, and the production efficiency is improved. The system is provided with the safety detection unit and the corresponding switch unit, when the safety detection unit detects that foreign objects invade in a dangerous operation range, a corresponding invasion signal can be generated, and the corresponding switch unit can disconnect the power supply of the motor according to the invasion signal, so that the elimination of dangerous factors in the operation range is realized, and accidental injury caused by false contact of staff in the production process is prevented.

Description

Duckbill mask automatic production device and control system thereof

Technical Field

The embodiment of the invention relates to an automatic control technology, in particular to an automatic production device for duckbilled masks and a control system thereof.

Background

Along with the development of science and technology, automatic production has been realized to gauze mask apparatus for producing, has improved production efficiency greatly.

Any machine in the existing automatic production device for duckbilled masks fails or alarms, and the automatic stop of the machine can be triggered, so that the product quality and the production line safety are ensured.

However, the automatic production device of the duckbill mask can cause waste of production materials due to automatic stop caused by faults and alarms.

Disclosure of Invention

The invention provides an automatic production device of a duckbill mask and a control system thereof, which are used for reducing waste of raw materials and improving production efficiency.

In a first aspect, an embodiment of the present invention provides a control system for an automatic production device for duckbill masks, where the control system for the automatic production device for duckbill masks includes: the device comprises a cloth sensing unit, a head band reserve sensing unit, a waste material sensing unit, a nose bridge strip reserve sensing unit, a plurality of pause keys, a motor sensing unit, a control unit and a driving unit;

the cloth sensing unit is arranged on the feeding frame and used for detecting the residual cloth amount of the cloth shaft;

the headband storage sensing unit is arranged in the headband storage box and used for detecting headband storage data in the headband storage box;

the waste amount sensing unit is arranged at a welding nose bridge strip on the production line and is used for detecting gummed paper amount data of the nose bridge strip;

the bridge strip reserve sensing unit is arranged in the bridge strip storage box and used for detecting bridge strip reserve data in the bridge strip storage box;

a plurality of pause keys are distributed around the production line and used for generating pause signals by pressing;

the motor sensing units are respectively connected with motors on the production line and are used for collecting state parameters of the motors;

the control unit is respectively connected with the cloth sensing unit, the head belt reserve sensing unit, the waste material amount sensing unit, the nose bridge strip reserve sensing unit, the pause keys and the motor sensing units, and is also respectively connected with each motor through the driving unit, and the control unit is used for determining error grades according to data acquired by each sensing unit and the pause signals, and controlling all motors on the production line to stop emergently under the condition that the error grades are of one grade; under the condition that the error level is two-level, controlling a motor in a production line zone corresponding to a pause signal and error data to stop; and controlling all motors on the production line to reduce the speed under the condition that the error level is three-level.

Optionally, the control unit is further configured to determine that the error level is three levels in a case where the cloth amount is exhausted, the headband storage amount is exhausted, or the gummed paper amount exceeds a preset time holding 0; determining that the error level is secondary if the bridge bar reserve is depleted, the pause signal is detected, or any sensing unit signal is interrupted; in the event that the state parameter of any of the motors is abnormal, the error level is determined to be three-level.

Optionally, the control system of the automatic production device for duckbilled mask further comprises: the first safety detection unit is arranged at the slicing motor and is used for generating a first invasion signal under the condition that foreign objects except cloth and a head belt rope invade in the operation range of the slicing motor;

the first switch unit is arranged between the slicing motor and the power supply and connected with the first safety detection unit, and the first switch unit is used for disconnecting a power supply circuit of the slicing motor according to the first intrusion signal.

Optionally, the control system of the automatic production device for duckbilled mask further comprises: the second safety detection unit is arranged at the welding machine and is used for generating a second invasion signal under the condition that foreign objects except cloth, a head belt rope and a nose bridge strip invade in the operation range of the welding machine;

the second switch unit is arranged between the welding machine and the power supply and connected with the second safety detection unit, and the second switch unit is used for disconnecting a power supply circuit of the welding machine according to the intrusion signal.

Optionally, the control unit is further connected to the first security detection unit and the second security detection unit, and the control unit is further configured to determine that the error level is one level when the first intrusion signal and the second intrusion signal are received.

Optionally, the first security detection unit and the second security detection unit each comprise a security light curtain.

Optionally, the control system of the automatic production device for duckbilled masks further comprises an upper computer, wherein the upper computer is connected with the control unit and is used for acquiring data acquired by each sensing unit and generating control signals of the upper computer according to input signals so as to control the speed and the state of the motor.

Optionally, the upper computer comprises a display device, and the display device is used for displaying the data acquired by each sensing unit.

Optionally, the control system of the automatic production device for duckbilled mask further comprises a communication unit, wherein the communication unit is connected with the control unit, the communication unit is used for being in wireless connection with the intelligent terminal, sending data acquired by each sensing unit to the intelligent terminal, and sending received wireless control signals to the control unit so as to control the speed and the state of the motor.

In a second aspect, an embodiment of the present invention further provides an automatic production device for duckbill mask, which is characterized by comprising:

a feeding frame, a knurling motor, a first welding machine, a second welding machine and a slicing motor are sequentially arranged from a feeding end to a discharging end of the automatic production device, and the control system is as set forth in any one of claims 1-9;

the feeding frame comprises a feeding motor and a pair of cloth shafts, wherein the pair of cloth shafts are used for providing a first layer of cloth and a second layer of cloth; the main shafts of the feeding motors are respectively connected with the ends of the cloth on the paired cloth shafts, and the feeding motors are used for driving the cloth shafts to discharge by rotation;

the knurling motor comprises a first knurling motor and a second knurling motor, and the first knurling motor is used for carrying out rolling printing on the first layer of cloth passing by; the second knurling motor is used for carrying out rolling printing on the passing second layer of cloth;

the two sides of the cloth between the first welding machine and the knurling motor are also provided with a head belt conveyor, and the head belt conveyor is used for conveying the head belt rope from the head belt rope storage box to the position between the first cloth layer and the second cloth layer; the first welding machine is used for performing a first welding operation on the first layer of cloth, the head strap rope and the second layer of cloth to form a primary mask;

the second welding machine is used for carrying out a second welding operation on the primary mask and the nose bridge strip in the mould so as to form a secondary mask;

the slicing motor is used for cutting the secondary mask subjected to the rolling printing, the first welding and the second welding and cloth to form an independent finished mask.

According to the duckbill mask automatic production device and the control system thereof, the control unit determines the error level according to the sensing data collected by each sensing unit, the state parameters of the motor and the pause signals, and further correspondingly makes different countermeasures according to different error levels, so that the number of times of full line shutdown caused by errors is reduced, a part of raw materials in processing can be lost due to each full line shutdown, the number of times of full line shutdown can be reduced, the waste of raw materials can be reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of an automatic production device for duckbill type masks according to an embodiment of the present invention;

figure 2 is a schematic structural view of an automatic production device for duckbill type masks according to an embodiment of the present invention,

fig. 3 is a schematic diagram showing the variation of a primary mask, a secondary mask and a finished mask according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a control system in an automatic production device for duckbill mask according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a control system in another automatic production device for duckbill mask according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating a control system in another automatic production device for duckbill mask according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating a control system in an automatic production device for duckbill mask according to another embodiment of the present invention;

fig. 8 is a schematic flow chart of a control method of an automatic production device for duckbill mask according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In order to solve the problems in the background art, the embodiment of the invention provides an automatic production device for duckbilled masks. Fig. 1 is a schematic diagram of the composition of an automatic production device for duckbill mask according to an embodiment of the present invention, fig. 2 is a schematic diagram of the structure of the automatic production device for duckbill mask according to an embodiment of the present invention, and in combination with fig. 1 and fig. 2, a feeding frame 101, a knurling motor 102, a first welding machine 103, a second welding machine 105, and a slicing motor 104 are sequentially disposed from a feeding end a to a discharging end b of the automatic production device for duckbill mask, and in addition, the automatic production device for duckbill mask further includes a control system 106 (connection relationship of the control system is not shown). The feeding frame 101 includes a feeding motor 107 and a pair of cloth shafts 108, and the pair of cloth shafts 108 are used to supply a first layer of cloth and a second layer of cloth. The spindles of the feeding motor 107 are respectively connected with the paired cloth shafts 108, which can be meshed with gears or driven by tracks, for example. The feeding motor 107 is used for driving the material distributing shaft 107 to discharge through rotation. The knurling motor 102 comprises a first knurling motor 109 and a second knurling motor 110, wherein the first knurling motor 109 is used for performing rolling printing on the passing first layer of cloth; the second knurling motor 110 is used for roll printing the passing second layer of cloth. The headband conveyor 111 is further arranged on two sides of the cloth between the first welding machine 103 and the knurling motor 102, and the headband conveyor 111 is used for conveying headband ropes from the headband rope storage box to a position between the first-layer cloth and the second-layer cloth; the first welding machine 103 is used for performing a first welding operation on the first cloth, the headband rope, and the second cloth to form a primary mask. The second welding machine 105 is further provided with a nose bridge bar conveyor 112 and a die 113, the nose bridge bar conveyor 112 is used for sequentially conveying nose bridge bars in the nose bridge bar storage box to the die 113, and the second welding machine 105 is used for performing a second welding operation on the primary mask and the nose bridge bars in the die 113 so as to form a secondary mask connected with cloth. The slicing motor 104 is used for slicing the secondary mask after rolling printing, first welding and second welding from cloth to form an independent finished mask.

Specifically, the feeding frame 101 refers to a rack for placing and providing cloth, and may include a plurality of pairs of cloth shafts 108, feeding motors 107 corresponding to the cloth shafts 108, and a frame 114. The cloth shaft 108 can rotate around the spin spindle with the feed motor 107 to spin out and feed out the cloth. The knurling motor 102, the first welding machine 103, the slicing motor 104, and the second welding machine 105 may be sequentially provided on a stage (not shown). The rotation shaft of the first knurling motor 109 in the knurling motor 102 can be connected with and drive the embossing roller to rotate, the embossing roller drives the first layer of cloth to unscrew and actively move forwards (towards one side of the discharge end) through the rotation matching feeding motor, and the embossing roller also embosses the first layer of cloth passing through. Similarly, the rotation shaft of the second knurling motor 110 in the knurling motor 102 may be connected to and drive the embossing roller to rotate, and the embossing roller drives the second layer of cloth to spin out and actively move forward (towards the discharging end side) through the rotation of the embossing roller in cooperation with the feeding motor, and the embossing roller also embosses the second layer of cloth passing by. The headband conveyor 111 conveys headband ropes, which may be elastic bands, between the first layer of cloth and the second layer of cloth before the cloth passes through the first welder 103. Illustratively, the headband conveyor 111 may move the headband conveying wire, move the headband conveying wire along with rotation of the headband conveyor, convey the headband rope clamped on the headband conveying wire between the first layer of cloth and the second layer of cloth, and place the headband rope at a corresponding position between the first layer of cloth and the second layer of cloth by releasing the corresponding clamp.

Fig. 3 is a schematic diagram of a variation of a primary mask, a secondary mask and a finished mask according to an embodiment of the present invention, and in combination with fig. 1, 2 and 3, the first welding machine 103 can perform a first welding operation on a first layer of cloth, a second layer of cloth, and a headband rope between the two layers of cloth stacked by passing through the two layers of cloth. In fig. 3, the black thick line is the welded part of the first welding, the head band is arranged between two layers of cloth, and the position of the head band is shown by a dotted line because the outside of the cloth is not visible. The first welding machine 103 may be an ultrasonic welding device, for example. After the first welding operation, the primary mask 301 with welded edges is formed on the cloth, and the primary mask 301 has a head strap, both ends of which are welded with the cloth during the welding process, but are not provided with nose bridge strips and are not separated from the cloth. The production of one duckbill mask is shown by way of example only in fig. 3 of this embodiment, and multiple duckbill masks may be produced simultaneously in other embodiments. Further, a nose bridge conveyor 112 and a die 113 are provided beside the second welder 105, and the nose bridge conveyor 112 can convey nose bridge to the die 113. The primary mask and the nose bridge strip can be respectively placed in the mold 113 in a conveying or manual placement manner, the second welding machine 105 can perform a second welding operation on the primary mask and the corresponding nose bridge strip in the mold 113, so that the primary mask 301 and the nose bridge strip are welded together to form a secondary mask 302, and the second welding machine 105 can be an ultrasonic welding device. It should be noted that the backing adhesive paper is removed before the nose bridge strip enters the mold, thereby facilitating the attachment between the nose bridge strip and the secondary mask. The resulting gummed paper waste can be transported out of the production line by a waste recovery conveyor. Finally, the secondary mask with welded edges, nose bridge strips and head ropes passes through a slicing motor 104, and the slicing motor 104 can cut the secondary mask from cloth to form an independent finished mask 303.

The control system 106 is powered by a power module (not shown) that can convert the mains supply to a DC power supply of appropriate grade via a transformer, an AC/DC switching power supply and a DC-DC chip in sequence, to power the control system. The control system can control the start-stop and working states of all motors in the duckbill mask automatic production device, so that all motors operate in a coordinated manner. The control system can be implemented in an embedded single-chip microcomputer mode, data collected by the motors and sensors at the equipment in the duckbill mask automatic production device and pause signals input by pause keys can be collected, error grades are determined according to the sensor data and the pause signals, states of the motors in the automatic production device are correspondingly controlled according to different error grades, and situation control under different error grades is achieved.

The embodiment of the invention also provides a control system of the automatic production device of the duckbill mask, which is applied to any automatic production device of the duckbill mask in the embodiment of the invention. Fig. 4 is a schematic diagram of the composition of a control system in an automatic production device for duckbill masks according to an embodiment of the present invention, and referring to fig. 4, based on the foregoing embodiment, a control system 400 for an automatic production device for duckbill masks includes: a cloth sensing unit 401, a headband reserve sensing unit 402, a scrap amount sensing unit 403, a nose bridge bar reserve sensing unit 404, a plurality of pause buttons 405, a motor sensing unit 406, a control unit 407, and a driving unit 408. The cloth sensing unit 401 is arranged on the feeding frame and is used for detecting the residual cloth amount of the cloth shaft; the headband storage sensing unit 402 is provided to the headband storage bin for detecting headband storage data in the headband storage bin. The waste material amount sensing unit 403 is arranged at the welding nose bridge bar on the production line and is used for detecting gummed paper amount data of the nose bridge bar. The bridge strip reserve sensing unit 404 is disposed in the bridge strip storage box and is used for detecting bridge strip reserve data in the bridge strip storage box. A plurality of pause buttons 405 are distributed throughout the production line for generating pause signals by pressing. The motor sensing units 406 are respectively connected with motors on the production line and are used for collecting state parameters of the motors. The control unit 407 is respectively connected with the cloth sensing unit 401, the head band reserve sensing unit 402, the waste material amount sensing unit 403, the nose bridge bar reserve sensing unit 404, the plurality of pause keys 405, the motor sensing unit 406 and each motor, and the control unit 407 is used for determining an error grade according to the data collected by each sensing unit and the pause signals, and controlling all motors on the production line to stop emergently under the condition that the error grade is one level; under the condition that the error level is two, controlling a motor in a production line zone corresponding to the pause signal and the data with the error to stop; and under the condition that the error level is three-level, controlling all motors on the production line to reduce speed, judging the error level again according to the corresponding error data after the preset time, and controlling all motors on the production line to stop emergently if the error level is kept.

Specifically, the motor sensing unit 406 collects state parameters of the motor, where the motor sensing unit 406 includes a start-stop sensor, a rotation speed sensor, a zero position sensor, and a motor shaft encoder, and can respectively obtain start-stop information, rotation speed information, zero position information, and motion position count information of the motor. The control unit 407 is connected with each motor through the driving unit 408, and can drive the start and stop, the rotating speed and other working states of each motor through the driving unit 408 in a mode of sending control signals to the driving unit 408. The control unit 407 may determine an error level of the automatic production device for duckbill mask according to the received headband reserve data, gummed paper reserve data, nose bridge strip reserve data, pause signal and state parameters of the motor, and further control a working state of the corresponding motor according to the error level. The motor in the production line segment corresponding to the pause signal and the error-occurring data is controlled to stop, and, for example, if the error level is determined to be two-level due to the detected exhaustion of the bridge piece reserve, the second welder and the bridge piece conveyor are controlled to pause to wait for the feeding of the bridge piece storage box. Such correspondence may be achieved by storing a correspondence table in the control unit 407. In addition, different alarm modes are required for different error grades to realize alarm reminding, and for example, in the case of controlling the second welding machine and the nose bridge strip conveyor to stop running to wait for feeding of the nose bridge strip storage box, an alarm near the nose bridge strip storage box is controlled to sound so as to remind a worker to feed into the nose bridge strip storage box.

Illustratively, the control unit 407 determines the error level as three levels in the case where it is detected that the cloth amount is exhausted, the headband reserve is exhausted, or the gummed paper amount exceeds a preset time holding 0; determining the error level as a second level in the event that the bridge of the nose strip reserve is depleted, a pause signal is detected, or any of the sensing unit signals is interrupted; in the case of abnormality of the state parameter of any motor, the error level is determined to be three-level.

According to the control system of the duckbill mask automatic production device, which is provided by the embodiment, the control unit determines error grades according to the sensing data collected by each sensing unit, the state parameters of the motor and the pause signals, and further correspondingly makes different countermeasures according to different error grades, so that the number of times of full line shutdown caused by errors is reduced, a part of raw materials which are being processed can be lost due to each full line shutdown, the number of times of full line shutdown can be reduced, the waste of raw materials can be reduced, and the production efficiency is improved.

Optionally, fig. 5 is a schematic diagram illustrating the composition of a control system in another automatic production device for duckbill masks according to an embodiment of the present invention, and referring to fig. 5, based on the foregoing embodiment, the control system 400 for the automatic production device for duckbill masks further includes: the first safety detection unit 502 and the first switch unit 501, the first safety detection unit 502 is arranged at the slicing motor, and is used for generating a first intrusion signal when foreign objects except cloth and a headband intrude in the operation range of the slicing motor. The first switch unit 501 is disposed between the slicing motor and the power supply, and is connected to the first safety detection unit 502, and the first switch unit 501 is configured to disconnect a power supply circuit of the slicing motor according to a first intrusion signal. The control system 400 of the duckbill mask automatic production device further comprises two second safety detection units 504 and corresponding second switch units 503, wherein the two second safety detection units 504 are respectively arranged at the first welding machine and the second welding machine and are used for generating a second invasion signal under the condition that foreign objects except cloth, a head belt rope and a nose bridge strip invade in the operation range of the first welding machine or the second welding machine; the second switch unit 503 is disposed between the first welding machine and the power source or between the second welding machine and the power source, and is connected to the corresponding second safety detection unit 504, and the second switch unit 503 is configured to disconnect the power supply circuit of the second welding machine according to the intrusion signal sent by the corresponding second safety detection unit 504. The operating range protected by the first security detection unit 502 and the second security detection unit 504 is referred to as a security range.

Specifically, the first detection unit may be disposed near the slicing motor, detect whether an external object except for the cloth and the headband invades in the operation range of cutting of the slicing motor, and exemplarily, the first detection unit may be a safety protection light curtain, and the transmitting end and the receiving end are respectively disposed at two sides of the cutting range of the slicing motor, so that a first invasion signal is generated under the condition that a worker approaches to the operation range of the slicing motor, and a accidental injury accident is prevented from occurring when cutting the cloth. The second detection unit may be a detection device that may be disposed near the first welding machine or the second welding machine, may detect whether there is an intrusion of foreign objects other than cloth and a headband rope in an operation range of the first welding machine or the second welding machine, and illustratively, the second detection unit may be a safety protection light curtain, where the transmitting end and the receiving end are disposed on two sides of a welding range of the second welding machine, respectively, and generate a second intrusion signal when a worker approaches the welding range of the second welding machine, so as to prevent a accidental injury accident occurring when welding the cloth.

The control system 400 of the automatic production device for duckbilled masks provided by the embodiment is further provided with a safety detection unit and a corresponding switch unit, when the safety detection unit detects that foreign objects invade in a dangerous operation range, a corresponding invasion signal can be generated, the corresponding switch unit can disconnect the power supply of a motor according to the invasion signal, the elimination of dangerous factors in the operation range is realized, accidental injury caused by misoperation of staff in the production process is prevented, and the safety and reliability of the automatic production device for duckbilled masks are improved.

Optionally, fig. 6 is a schematic diagram of a control system in another automatic production device for duckbill mask according to the present invention, referring to fig. 6, on the basis of the foregoing embodiment, the control unit 407 is further connected to the first safety detection unit 502 and the second safety detection unit 504, where the control unit 407 is further configured to determine that the error level is one level when receiving the first intrusion signal and the second intrusion signal, so that under the condition that the operating range of the slicing motor and the operating ranges of the first welder and the second welder are invaded by foreign objects, a full production line stop is implemented, so that other injuries caused by panic caused by touching the operating range by workers are prevented, personal safety is placed in the first position, and safety and reliability of the automatic production device for duckbill mask are further improved.

Optionally, fig. 7 is a schematic diagram of the composition of a control system in a duckbill mask automatic production device according to another embodiment of the present invention, and referring to fig. 7, based on the foregoing embodiment, the control system 400 of the duckbill mask automatic production device further includes an upper computer 701, an intelligent terminal, and a communication unit 702, where the upper computer 701 is connected to the control unit 407, and the upper computer 701 is configured to obtain data collected by each sensing unit, generate an upper computer 701 signal according to an input signal, so as to control the speed and state of the motor. The communication unit 702 is connected to the control unit 407, and the communication unit 702 is configured to wirelessly connect with the intelligent terminal, send the data collected by each sensing unit to the intelligent terminal, and send the received wireless control signal to the control unit 407, so as to control the speed and state of the motor.

Specifically, the upper computer 701 may include a display device and an input device, which are connected with the control unit 407 through a TCP/IP protocol. The upper computer 701 can display the data collected by each sensing unit by using a display device, and generate an input signal by using an input device, wherein the input signal can generate a control signal of the upper computer 701 and send the control signal to the control unit 407, and the control unit 407 can control the rotating speed, start-stop and working state of each motor according to the control signal sent by the upper computer 701. The communication unit 702 may be a LORA wireless communication device, which may implement wireless communication connection between the control system 400 of the automatic duckbill mask production device and the intelligent terminal. The intelligent terminal can be a mobile phone, a tablet personal computer or a remote controller. The communication unit 702 can receive wireless control signals sent by the intelligent terminal and transmit the wireless control signals to the control unit 407, the control unit 407 can control the start and stop, the rotating speed and the state of each motor in the duckbill mask automatic production device according to the wireless control signals, remote control is achieved, dependence of a production line on operators on duty is reduced, and production flexibility is improved. It should be noted that, the parts shown by the broken lines in fig. 5, 6 and 7 are motors of the duckbill mask automatic production device, and are not included in the control system 400, but are shown in the figures to show the connection relationship of the control system 400.

Fig. 8 is a schematic flow chart of a control method of an automatic production device for duckbill mask according to an embodiment of the present invention, where the control method of the automatic production device for duckbill mask is implemented by a control unit, and referring to fig. 8, the control method includes: s801, after the control system is powered on, whether a start button is pressed is judged. S802, under the condition that a start button is not pressed, starting alarm according to the full-production state. Specifically, under the condition that a start button is not pressed, detecting the state of each position of the automatic production device of the duckbill mask, and if the lack of materials occurs, the non-zero position of a motor main shaft or a safety area is invaded, performing start alarm and prohibiting the start of the automatic production device of the duckbill mask. S803, under the condition that the start button is not pressed, reminding signals are generated to the intelligent terminal and the upper computer. S804, continuously updating the data acquired by the sensing unit under the condition that the start button is not pressed. And S805, continuously receiving the data and pause signals acquired by the sensing units under the condition that the start button is pressed. S806, judging whether error grades exist according to the data collected by each sensing unit and the pause signal. S807 determines whether the error level is one level if there is an error level. S808, under the condition that the error level is one level, controlling all motors on the production line to stop working and sending out one level of alarm. S809, judging whether the error level is the second level or not when the error level is not the first level. And S810, controlling a motor in a wrong film zone on the production line to stop working and sending out a secondary alarm under the condition that the error level is the secondary level. And S811, controlling the motor on the production line to run in a decelerating way and giving out a three-level alarm under the condition that the error level is not two-level.

According to the duckbill mask automatic production device and the control system thereof, the control unit determines the error level according to the sensing data collected by each sensing unit, the state parameters of the motor and the pause signals, and further correspondingly makes different countermeasures according to different error levels, so that the number of times of full line shutdown caused by errors is reduced, a part of raw materials in processing can be lost due to each full line shutdown, the number of times of full line shutdown can be reduced, the waste of raw materials can be reduced, and the production efficiency is improved. The system is provided with the safety detection unit and the corresponding switch unit, when the safety detection unit detects that foreign objects invade in a dangerous operation range, a corresponding invasion signal can be generated, the corresponding switch unit can disconnect the power supply of the motor according to the invasion signal, so that the elimination of dangerous factors in the operation range is realized, accidental injury caused by misoperation of staff in the production process is prevented, and the safety and reliability of the automatic production device for duckbilled masks are improved.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (9)

1. A control system for an automatic production device for duckbill masks, comprising: the device comprises a cloth sensing unit, a head band reserve sensing unit, a waste material sensing unit, a nose bridge strip reserve sensing unit, a plurality of pause keys, a motor sensing unit, a control unit and a driving unit;

the cloth sensing unit is arranged on the feeding frame and used for detecting the residual cloth amount of the cloth shaft;

the headband storage sensing unit is arranged in the headband storage box and used for detecting headband storage data in the headband storage box;

the waste amount sensing unit is arranged at a welding nose bridge strip on the production line and is used for detecting gummed paper amount data of the nose bridge strip;

the bridge strip reserve sensing unit is arranged in the bridge strip storage box and used for detecting bridge strip reserve data in the bridge strip storage box;

a plurality of pause keys are distributed around the production line and used for generating pause signals by pressing;

the motor sensing units are respectively connected with motors on the production line and are used for collecting state parameters of the motors;

the control unit is respectively connected with the cloth sensing unit, the head belt reserve sensing unit, the waste material amount sensing unit, the nose bridge strip reserve sensing unit, the pause keys and the motor sensing units, and is also respectively connected with each motor through the driving unit, and the control unit is used for determining error grades according to data acquired by each sensing unit and the pause signals, and controlling all motors on the production line to stop emergently under the condition that the error grades are of one grade; under the condition that the error level is two-level, controlling a motor in a production line zone corresponding to a pause signal and error data to stop; controlling all motors on the production line to reduce the speed under the condition that the error level is three-level;

the control unit is further configured to determine that the error level is three levels in a case where the cloth amount is exhausted, the headband storage amount is exhausted, or the gummed paper amount exceeds a preset time holding 0; determining that the error level is secondary if the bridge bar reserve is depleted, the pause signal is detected, or any sensing unit signal is interrupted; in the event that the state parameter of any of the motors is abnormal, the error level is determined to be three-level.

2. The control system of the automatic production device for duckbill mask according to claim 1, further comprising: the first safety detection unit is arranged at the slicing motor and is used for generating a first invasion signal under the condition that foreign objects except cloth and a head belt rope invade in the operation range of the slicing motor;

the first switch unit is arranged between the slicing motor and the power supply and connected with the first safety detection unit, and the first switch unit is used for disconnecting a power supply circuit of the slicing motor according to the first intrusion signal.

3. The control system of the automatic production device for duckbill mask according to claim 2, further comprising: the second safety detection unit is arranged at the welding machine and is used for generating a second invasion signal under the condition that foreign objects except cloth, a head belt rope and a nose bridge strip invade in the operation range of the welding machine;

the second switch unit is arranged between the welding machine and the power supply and connected with the second safety detection unit, and the second switch unit is used for disconnecting a power supply circuit of the welding machine according to the intrusion signal.

4. A control system for an automated duckbill mask production device according to claim 3, wherein the control unit is further connected to the first and second safety detection units, respectively, and wherein the control unit is further configured to determine the error level as one level if the first and second intrusion signals are received.

5. A control system for an automated duckbill mask production device according to claim 3, wherein the first safety detection unit and the second safety detection unit each comprise a safety light curtain.

6. The control system of the automatic production device of duckbill masks according to claim 1, further comprising an upper computer, wherein the upper computer is connected with the control unit, and is used for acquiring data acquired by each sensing unit, and generating a control signal of the upper computer according to an input signal so as to control the speed and the state of the motor.

7. The control system of automatic production device for duckbill mask according to claim 6, wherein the upper computer comprises a display device for displaying the data collected by each sensor unit.

8. The control system of the automatic production device of duckbill mask according to claim 1, further comprising a communication unit, wherein the communication unit is connected with the control unit, and the communication unit is used for being wirelessly connected with an intelligent terminal, sending data collected by each sensing unit to the intelligent terminal, and sending received wireless control signals to the control unit to control the speed and state of the motor.

9. Automatic apparatus for producing of duckbill-type gauze mask, characterized by comprising:

a feeding frame, a knurling motor, a first welding machine, a second welding machine and a slicing motor are sequentially arranged from a feeding end to a discharging end of the automatic production device, and the control system is as set forth in any one of claims 1-8;

the feeding frame comprises a feeding motor and a pair of cloth shafts, wherein the pair of cloth shafts are used for providing a first layer of cloth and a second layer of cloth; the main shafts of the feeding motors are respectively connected with the ends of the cloth on the paired cloth shafts, and the feeding motors are used for driving the cloth shafts to discharge by rotation;

the knurling motor comprises a first knurling motor and a second knurling motor, and the first knurling motor is used for carrying out rolling printing on the first layer of cloth passing by; the second knurling motor is used for carrying out rolling printing on the passing second layer of cloth;

the two sides of the cloth between the first welding machine and the knurling motor are also provided with a head belt conveyor, and the head belt conveyor is used for conveying the head belt rope from the head belt rope storage box to the position between the first cloth layer and the second cloth layer; the first welding machine is used for performing a first welding operation on the first layer of cloth, the head strap rope and the second layer of cloth to form a primary mask;

the second welding machine is used for carrying out a second welding operation on the primary mask and the nose bridge strip in the mould so as to form a secondary mask;

the slicing motor is used for cutting the secondary mask subjected to the rolling printing, the first welding and the second welding and cloth to form an independent finished mask.

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