Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the glass scribing equipment in the prior art cannot timely find and stop the scribing action once the glass is displaced in the glass scribing process, so as to provide a scribing system and a method for protecting the scribing device, which can timely stop the scribing action after the glass is displaced in the scribing process.
To solve the above technical problem, the scribing system of the present invention comprises:
a scoring device for scoring the scored object at a scoring focus position of the scoring device;
the position sensing device is used for monitoring the position of the engraved object at the engraving focal position in real time and outputting a corresponding signal;
the controller is in communication connection with the scribing device, judges whether the scribed object moves or not according to the received signal in the scribing process, and controls the scribing device to stop scribing work if judging that the scribed object moves.
The scoring device comprises:
the working platform is provided with a positioning mechanism for positioning the engraved object at the engraving focus position, and the working platform moves back and forth under the action of a working platform driving mechanism to define the moving direction as the X-axis direction;
the needle engraving module is arranged above the working platform through a bracket;
the controller is respectively in communication connection with the working platform driving mechanism and the stylus module, and when receiving the signal, the controller controls the working platform driving mechanism to stop driving and controls the stylus module to move up to a safe distance.
The position sensing device includes:
at least one inductor arranged on the working platform;
in the scribing process, the displaced scribed object triggers the sensors to output signals, and when the controller receives the output signal of any one of the sensors, the controller controls the working platform driving mechanism to stop driving and controls the scribing needle module to move up to a safe distance;
or
In the scribing process, the displaced scribed object moves out of the sensing range of the sensor, and when the controller cannot receive the output signal of the sensor, the controller controls the working platform driving mechanism to stop driving and controls the scribing needle module to move up to a safe distance.
The working platform is provided with a conveyor belt/chain for conveying the engraved object to the position above the engraving focus, and the conveying direction of the conveyor belt/chain is arranged along the X-axis direction; the scoring device further comprises a conveyor/chain lifting mechanism for lowering the conveyor/chain to a scoring focal position;
the position sensing device includes:
the first sensor is at least provided one and is arranged on one side of the scribing tail end edge of the scribed object at the scribing focus position, and the shifted scribed object triggers the first sensor to output a first signal;
the second sensor is arranged close to the scribing starting edge of the scribed object at the scribing focus position and is positioned below the scribed object;
when the second sensor is shielded by the engraved object transmitted to the engraving focus position, the second signal output is interrupted, and the controller controls the conveyor belt/chain to stop conveying;
in the scribing process, when the controller receives the signal of the second sensor again or receives the output signal of any first sensor, the controller controls the working platform driving mechanism to stop driving and controls the scribing needle module to move up to a safe distance.
The needle carving module comprises:
the moving part is arranged on the bracket and is provided with a safe stay position sensor;
a module main body provided on the moving section to be movable in a Z-axis direction;
the engraving needle is arranged on the module main body;
and when the safe stopping position sensor detects that the module main body moves to a safe position along the Z-axis direction, the driving mechanism for driving the module main body to move is controlled to stop driving.
The moving part can be movably arranged on the support along the Y-axis direction, and/or an upper limit inductor and a lower limit inductor are arranged on the moving part, and the safe stopping limit inductor is arranged between the upper limit inductor and the lower limit inductor.
The working platform is provided with at least one adsorption port, and the positioning mechanism is communicated with the adsorption port and adsorbs glass to be scribed at the scribing focus position to a vacuum adsorption device on the working platform.
The vacuum adsorption device comprises a suction detection structure, the suction detection structure is close to the adsorption port, the controller is in communication connection with the vacuum adsorption device, the suction detection structure is used for monitoring suction information of the adsorption port in real time and conveying the suction information to the controller, the controller judges the received suction information, and if the detected suction is smaller than a preset range value, the working platform driving mechanism stops driving and controls the graver module to move up to a safe distance.
The invention provides a method for protecting a scribing device, comprising the following steps:
and monitoring the position of the engraved object at the engraving focal position in real time, judging whether the displacement occurs or not, and controlling the engraving device to stop engraving work if the displacement occurs.
Further comprising:
and monitoring the adsorption force information of the vacuum adsorption force at the adsorption port of the scribing device in real time, judging whether the adsorption force is within a preset range value, and controlling the scribing device to stop scribing if the adsorption force is judged to be less than a standard range value.
The technical scheme of the invention has the following advantages:
1. in the invention, once the scribed object shifts in the scribing process, the scribed object can be timely monitored by the position sensing device, and the controller timely controls the scribing device to stop scribing after judging the shift, thereby playing a good protection role, avoiding the serious loss caused by the damage of the scribing device and prolonging the service life of the scribing device.
2. In the invention, the second sensor can play double roles, not only can monitor the engraved object to be conveyed in place, but also can detect the displacement of the engraved object at the engraving focus position, thereby reducing the arrangement of one sensor and lowering the cost.
3. In the invention, when the suction detection structure monitors that the vacuum suction fluctuates and exceeds a preset range value, the adsorption failure can be judged, and the displacement risk exists, so that the controller can stop the scribing action in time, control the scribing needle module to move up to a safe distance and give an alarm. Further plays a role in protection, and prolongs the service life of the scribing device.
4. In the invention, the safe stay position sensor is arranged between the upper limit sensor and the lower limit sensor, so that the time for returning the engraving needle module can be reduced, and the processing efficiency is improved. Therefore, after the safety stop position sensor is damaged, the highest position and the lowest position of the movement of the needle engraving module can be limited, so that the needle engraving module and the working platform can be further protected.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-3, a scoring system of the present invention comprises:
a scoring device for scoring the scored object at a scoring focus position of the scoring device;
the position sensing device is used for monitoring the position of the engraved object at the engraving focal position in real time and outputting a corresponding signal;
the controller is in communication connection with the scribing device, judges whether the scribed object moves or not according to the received signal in the scribing process, and controls the scribing device to stop scribing work if judging that the scribed object moves.
Therefore, in the scribing process, once the scribed object shifts, the scribed object can be timely monitored by the position sensing device, and the controller timely controls the scribing device to stop scribing after judging the shift, so that the scribing device has a good protection effect, avoids serious loss caused by damage of the scribing device, and prolongs the service life of the scribing device.
There are various configurations of the scoring device, and preferably the scoring device comprises:
the working platform 6 is provided with a positioning mechanism for positioning the engraved object at the engraving focal position, and the working platform 6 moves back and forth under the action of the working platform driving mechanism to define the moving direction as the X-axis direction;
the needle engraving module 9 is arranged above the working platform 6 through a bracket 10; preferably, when the working platform 6 is at the initial scribing position, the scribing needle module 9 is positioned at one side of the working platform 6;
the controller is respectively in communication connection with the working platform driving mechanism and the engraving needle module 9, and when receiving the signal, the controller controls the working platform driving mechanism to stop driving and controls the engraving needle module 9 to move up to a safe distance and give an alarm.
The working platform 6 drives the engraved object to move under the engraving needle module 9, so as to realize the engraving action. When the engraved object shifts, the controller controls the working platform driving mechanism to stop driving in time, and the engraving needle module 9 moves up to a safe distance and gives an alarm.
The position sensing device includes:
at least one inductor arranged on the working platform 6;
in the scribing process, the displaced scribed object triggers the sensors to output signals, and when the controller receives the output signal of any one of the sensors, the controller controls the driving mechanism of the working platform 6 to stop driving and controls the scribing needle module 9 to move up to a safe distance;
or
In the scribing process, the displaced scribed object moves out of the sensing range of the sensor, and when the controller cannot receive the output signal of the sensor, the controller controls the working platform driving mechanism to stop driving and controls the scribing needle module 9 to move up to a safe distance.
Further, it is preferable that a conveyor belt/chain 8 for conveying the object to be scribed above the scribing focus position is arranged on the working platform 6, and the conveying direction of the conveyor belt/chain 8 is arranged along the X-axis direction, and the scribing device further comprises a conveyor belt/chain lifting mechanism for lowering the conveyor belt/chain 8 to the scribing focus position; the arrangement of the conveyor belt/chain 8 and the conveyor belt/chain lifting mechanism enables the automatic conveyance of the object to be scribed.
The position sensing device includes:
the first sensor 1 is provided with at least one and is arranged on one side of the scribing tail end edge of the scribed object at the scribing focus position, and the shifted scribed object triggers the first sensor 1 to output a first signal;
the second sensor 3 is arranged close to the scribing starting edge of the scribed object at the scribing focus position and is positioned below the scribed object;
when the second sensor 3 is shielded by the engraved object transmitted to the engraving focus position, the output of a second signal is interrupted, and the controller controls the conveyor belt/chain to stop conveying;
in the scribing process, when the controller receives the signal of the second sensor 3 again or receives the output signal of any one of the first sensors 1, the controller controls the driving mechanism of the working platform 6 to stop driving and controls the scribing needle module 9 to move up to a safe distance.
Preferably, the number of the first inductors 1 is two, the number of the second inductors 3 is one, the distance between each of the two first inductors 1 and the edge of the end of the scribing is 0.5mm to 1.2mm, preferably 1mm, the distance between each of the two second inductors 3 and the edge of the starting edge of the scribing is 0.5mm to 1.2mm, preferably 1mm, and the two first inductors 1 and the two second inductors 3 are preferably arranged in a right triangle. The second sensor 3 can play double roles, not only can monitor the scribed object to be conveyed in place, but also can detect the displacement of the scribed object at the scribing focus position, thereby reducing the arrangement of one sensor and reducing the cost. The arrangement of the first inductor 1 and the second inductor 3 can improve the accuracy of displacement detection. Of course, the second inductor 3 may be provided in plurality.
Specifically, the stylus module 9 includes:
a moving part which is arranged on the bracket 10 and is provided with a safe stay position sensor 95;
a module main body 91 provided on the moving section to be movable in the Z-axis direction;
a stylus 92 provided on the module main body 91;
when the safety stop position sensor 95 detects that the module main body 91 moves to a safety position along the Z-axis direction, the driving mechanism for driving the module main body 91 to move is controlled to stop driving. The arrangement of the safety stop position sensor 95 can ensure that the engraving needle module 9 can reliably return to a safety position to prevent the engraved object and the engraving needle module 9 from being damaged, and can also reduce the time for the engraving needle module 9 to return to the safety position, thereby improving the processing efficiency. As shown in fig. 1, two sets of the stylus module 9 are preferably provided. Of course, one set, or a plurality of sets, may be provided.
Further, it is preferable that the moving part is movably provided on the support 10 in the Y-axis direction, so that the module main body 91 can be driven to move to the next scribing position in the Y-axis direction after scribing once. The moving part is provided with an upper limit sensor 93 and a lower limit sensor 94, and the safety stop sensor 95 is arranged between the upper limit sensor 93 and the lower limit sensor 94. Therefore, after the safety stop position sensor 95 is damaged, the highest position and the lowest position of the movement of the needle module 9 can be limited, so that the needle module 9 and the working platform 6 can be further protected.
The working platform 6 is provided with at least one adsorption port 2, and the positioning mechanism is communicated with the adsorption port 2 and adsorbs glass to be scribed at a scribing focus position to a vacuum adsorption device on the working platform 6.
Preferably, as shown in fig. 3, the vacuum adsorption device includes a suction detection structure 4, the suction detection structure 4 is close to the adsorption port 2, the controller is in communication connection with the vacuum adsorption device, the suction detection structure 4 is used for monitoring the suction information of the adsorption port 2 in real time and conveying the suction information to the controller, the controller judges the received suction information, and if the detected suction is smaller than a preset range value, the working platform driving mechanism is controlled to stop driving and the stylus module 9 is controlled to move up to a safe distance.
Therefore, when the suction detection structure 4 monitors that the vacuum suction fluctuates and exceeds a preset range value, the adsorption failure can be judged, and the displacement risk exists, so that the controller can stop the scribing action in time, control the scribing needle module 9 to move up to a safe distance and give an alarm. Further plays a role in protection, and prolongs the service life of the scribing device.
Specifically, the vacuum adsorption device comprises a pipeline communicated with the adsorption port 2, an electromagnetic valve 5 arranged on the pipeline, and a vacuum pump.
Preferably, the object to be scribed is glass 7. Of course, the product can be made of other materials.
The invention provides a method for protecting a scribing device, comprising the following steps:
and monitoring the position of the engraved object at the engraving focal position in real time, judging whether the displacement occurs or not, and controlling the engraving device to stop engraving work if the displacement occurs.
Further comprising:
and monitoring the adsorption force information of the vacuum adsorption force at the adsorption port 2 of the scribing device in real time, judging whether the adsorption force is within a preset range value, and controlling the scribing device to stop scribing work if the adsorption force is judged to be less than a standard range value.
The scribing device can be reliably and effectively protected by monitoring the position of the scribed object at the scribing focus position and the vacuum adsorption force of the adsorption port 2.
The working principle of the scribing system of the invention is as follows:
1. preparation work:
(1) the working platform automatically feeds glass to the position above the scribing focus position through the conveyor belt/chain, the conveyor belt/chain is driven to descend through the conveyor belt/chain lifting mechanism to enable the glass to be at the scribing focus position, the glass is positioned, corrected and adsorbed, and the state to be scribed is finished;
(2) adjusting two first inductors 1 to sense the state OFF at a position about 1mm outside the edge of the scribed end of the glass;
(3) adjusting the second sensor 3 to be ON at a position of about 1mm within the scribing initiation edge of the glass;
(4) adjusting two safe stay position sensors 95 to make the stylus stay at a safe height, wherein the sensors are in an ON state;
(5) after the glass is completely adsorbed, the suction in the pipeline is in a standard range, and a vacuum suction detection passing signal is lightened;
2. and (3) scribing process:
(1) after the automatic mode is switched, the scribing system can start working;
(2) the stylus descends to the position of the scribing focus, and normal scribing is started;
(3) in the scribing process, when the states of the two first sensors 1 are switched to ON and the state of the second sensor 2 is switched to OFF, the program judges that the glass is shifted, the scribing action is stopped and an alarm is given, and the scribing needle is lifted back to a safe position along the Z axis;
(4) in the scribing process, when the vacuum suction fluctuates and exceeds the standard range and the vacuum suction detection signal is extinguished, the program judges that the glass adsorption fails and has a displacement risk, the scribing action is stopped and an alarm is given, and the scribing needle is lifted back to a safe position along the Z axis.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.