Safety operation system and method for mold hoisting

Abstract

The invention discloses a mold lifting safety operation system and method, and the system comprises a lifting device which comprises a support and a tackle, and the tackle is movably arranged on the support; the camera system is used for collecting an image of a lifting area; the industrial personal computer is in communication connection with the camera system, the industrial personal computer receives the lifting area image, the industrial personal computer comprises preset safety parameters, the industrial personal computer evaluates the lifting area image according to the preset safety parameters, the industrial personal computer generates a tackle starting instruction when the lifting area image is qualified, and the tackle starting instruction is used for starting the tackle when the lifting area image is qualified. The industrial personal computer generates a tackle locking instruction when the image of the lifting area is not qualified, the controller is electrically connected with the tackle, the tackle driving instruction is used for controlling the tackle to execute lifting operation, and the tackle locking instruction is used for controlling the tackle to be locked.

Description

Technical Field

[0001] The present invention relates to the technical field of mould lifting operation equipment, and in particular to a mould lifting safety operation system and method. Background Art

[0002] With the rapid development of the automobile industry, the frequency of die change and die maintenance in the production process of automobile stamping has been increasing, and the rate of overhead crane hoisting safety accidents during die change and die maintenance has also been increasing. In the past three years, 75% of stamping production safety accidents were related to overhead crane hoisting, which has a great impact on personal safety and equipment tooling safety.

[0003] At present, the known safety methods for mold lifting operations are all passive safety warnings, such as sound alarms when the overhead crane is started / operated, or warnings by projecting dangerous area lines on the ground through lights / lasers when the overhead crane is running. However, this type of method relies more on the operator's consciousness and does not have the ability to enforce safety management. It is unable to fundamentally identify illegal actions and prevent illegal operations, nor can it predict or terminate dangers in advance. In addition, the projection surface size is fixed, which is not conducive to matching molds of different sizes. The projection surface will deform when encountering objects on the ground, affecting the operator's judgment. On the other hand, the overhead crane light is transformed into a laser contour projection method for warning, which solves the problem of deformation of the light projection surface, but laser is harmful to the eyes. When the laser is projected, the operator cannot look up to observe the working conditions above, which creates secondary safety hazards. Summary of the invention

[0004] To solve at least one aspect of the above problems, the present invention provides a safe operation system for lifting molds, comprising: a lifting device, the lifting device comprising a bracket and a pulley, the pulley being movably arranged on the bracket; a camera system, the camera system being used to collect lifting area images; an industrial computer, the industrial computer being communicatively connected with the camera system, the industrial computer receiving the lifting area image, the industrial computer comprising preset safety parameters, the industrial computer evaluating the lifting area image according to the preset safety parameters, the industrial computer generating a pulley start instruction when the lifting area image is qualified, the industrial computer generating a pulley locking instruction when the lifting area image is unqualified, the controller being electrically connected to the pulley, the pulley drive instruction being used to control the pulley to perform lifting operations, and the pulley locking instruction being used to control the pulley to lock.

[0005] Preferably, the support comprises a truss, a track and a beam, the track is fixedly arranged on the top end of the truss, the beam is movably arranged on the track, and the pulley is movably arranged on the beam.

[0006] Preferably, the industrial computer is fixedly mounted on the pulley.

[0007] Preferably, the camera system comprises a connecting seat, an angle adjustment turntable and an adjustable visual camera, the connecting seat is fixedly connected to the pulley, the angle adjustment turntable is rotatably connected to the connecting seat, and the adjustable visual camera is fixedly connected to the angle adjustment turntable.

[0008] Preferably, the angle adjustment dial further includes a locking member, and the locking member is used to fix the angle adjustment dial and the connecting seat.

[0009] Preferably, the camera system further comprises a vibration isolation pad, and the vibration isolation pad is arranged between the angle adjustment dial and the connecting seat.

[0010] Preferably, the lifting area image includes molds, personnel and sites, and the industrial computer determines personnel movements, personnel equipment, personnel positions and danger zone boundaries based on the lifting area image. The preset safety parameters include action parameters, equipment parameters, area parameters, mold parameters and path parameters. The action parameters are used to evaluate personnel movements, the equipment parameters are used to evaluate personnel equipment, the area parameters are used to evaluate the distance between the personnel position and the safety area, the mold parameters are used to evaluate mold attachments, and the path parameters are used to evaluate path obstacles.

[0011] Preferably, the industrial computer extracts the contours of the mold and personnel based on the lifting area image to generate a grayscale image. The industrial computer includes a benchmark comparison template, and the benchmark comparison template includes a plurality of continuous cells, each of the plurality of cells uniquely corresponds to a grid number. The contour in the grayscale image is projected onto the benchmark comparison template, the contour of the mold is extended according to a preset ratio to determine the boundary of the danger zone, and the lifting area image is evaluated based on the contour projection of the personnel and the grid number of the danger zone boundary.

[0012] Preferably, the action parameters include pulling out the mold hanging rod, pressing in the lifting wire rope, and pushing back the mold hanging rod, and the equipment parameters include preset wearable devices.

[0013] On the other hand, a method for safe mold lifting operation is provided, which adopts any of the above-mentioned safe mold lifting operation systems, and the method includes: in response to a start signal of the lifting device, collecting a lifting area image; evaluating the lifting area image based on preset safety parameters, and generating a pulley start instruction when the lifting area image is qualified, and generating a pulley locking instruction when the lifting area image is unqualified, the pulley drive instruction is used to control the pulley to perform lifting operations, and the pulley locking instruction is used to control the pulley to lock.

[0014] The mold lifting safety operation system and method of the embodiments of the present invention have the following beneficial effects: automatically identifying the mold contour, defining the lifting danger zone according to different mold sizes, and then controlling the effective distance between the operator and the mold (the overhead crane can only operate when the operator is outside the danger zone); no need to project any light onto the ground to avoid harm to the human eye; and controlling the lifting operation of the pulley by evaluating the lifting area graphics collected by the camera system, thereby realizing active intervention management of the safety of the mold lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale.

[0016] Figure 1 It shows a structural schematic diagram of a mold lifting safety operation system according to an embodiment of the present invention;

[0017] Figure 2 A schematic structural diagram of a pulley of a mold lifting safety operation system according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram showing the boundary of a dangerous area of ​​a mold lifting safety operation system according to an embodiment of the present invention is shown.

[0019] Reference numerals:

[0020] 1. Truss; 2. Track; 3. Beam; 4. Pulley; 5. Camera system; 510. Adjustable visual camera; 520. Angle adjustment turntable; 530. Vibration isolation pad; 540. Connecting seat; 6. Industrial computer; 7. PLC controller; 8. Lifting wire rope; 9. Mould; 910. Danger zone boundary; 920. Benchmark comparison template; 10. Personnel. DETAILED DESCRIPTION

[0021] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0022] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0023] In order to at least partially solve one or more of the above-mentioned problems and other potential problems, an embodiment of the present disclosure proposes a safe operation system for lifting a mold 9, including: a lifting device, a camera system 5 and an industrial computer 6, the lifting device includes a bracket and a pulley 4, and the pulley 4 is movably arranged on the bracket; the camera system 5 is used to collect the lifting area image; the industrial computer 6 is communicatively connected with the camera system 5, the industrial computer 6 receives the lifting area image, the industrial computer 6 includes preset safety parameters, the industrial computer 6 evaluates the lifting area image according to the preset safety parameters, the industrial computer 6 generates a pulley start instruction when the lifting area image is qualified, and the industrial computer 6 generates a pulley locking instruction when the lifting area image is unqualified, the controller is electrically connected to the pulley 4, the pulley 4 drive instruction is used to control the pulley 4 to perform the lifting operation, and the pulley locking instruction is used to control the pulley 4 to lock.

[0024] Specifically, Figure 1 As shown, the support of the lifting device is fixedly arranged at a preset position, the pulley 4 is movably arranged on the top of the support, and the pulley 4 is connected to the mold 9 through the lifting wire rope 8. The lifting device also includes a PLC controller 7, a drive motor, etc. The PLC controller 7 is used to control the drive motor to realize the movement operation of the mold 9 connected to the lifting wire rope 8.

[0025] The camera system 5 is used to collect the lifting area image. The camera system 5 is connected to the industrial computer 6 for communication. The industrial computer 6 receives the start signal of the lifting device through the PLC controller 7. The industrial computer 6 controls the camera system 5 to start collecting the lifting area image in response to the received start signal. The lifting area includes the mold 9, the site and the personnel 10. The lifting area image is a video image of the preset lifting area.

[0026] The industrial computer 6 receives the lifting area image through the camera system 5, and evaluates the lifting area image according to the preset safety parameters. In some embodiments, the preset safety parameters are preset standard images, and the lifting area image is determined to be qualified by comparing the preset standard image with the lifting area image. For example, the preset standard image includes the mold 9, the site and the personnel 10, and the lifting area image and the mold 9, the site and the personnel 10 in the preset standard image are compared in turn. When the mold 9, the site and the personnel 10 all meet the preset standards, the lifting area image is determined to be qualified, and when any one of the mold 9, the site and the personnel 10 does not meet the preset standards, the lifting area image is determined to be unqualified. The preset standards include the projection position of the mold 9 in the site, the relative position of the personnel 10 and the projection of the mold 9 on the site, the personnel equipment and the personnel operation actions, etc. In other embodiments, the preset safety parameters include multiple preset standard images, and the multiple preset standard images correspond to multiple mold models one by one. The industrial computer 6 identifies the mold model through the lifting area image, and determines the corresponding preset standard image according to the identified mold model for evaluating the lifting area image.

[0027] The industrial computer 6 generates a control instruction for controlling the lifting device according to the evaluation result of the lifting area image, including: when the evaluation result of the lifting area image is qualified, the industrial computer 6 generates a pulley start instruction, and the PLC controller 7 of the lifting device responds to the pulley start instruction output by the industrial computer 6 to perform the lifting operation of the mold 9; when the evaluation result of the lifting area image is unqualified, the industrial computer 6 generates a pulley locking instruction, and the PLC controller 7 of the lifting device responds to the pulley locking instruction output by the industrial computer 6 to control the pulley 4 to lock. Through the evaluation of the lifting area image by the industrial computer 6, it is possible to avoid performing the lifting operation when the lifting area does not meet the safe working conditions, thereby actively reducing the working risk.

[0028] In some embodiments, the support includes a truss 1, a track 2 and a beam 3, the track 2 is fixedly arranged on the top of the truss 1, the beam 3 is movably arranged on the track 2, and the pulley 4 is movably arranged on the beam 3.

[0029] Specifically, Figure 1 As shown, the truss 1 adopts a fixed frame structure to provide height support for the mold lifting operation. The track 2 is a guide structure arranged parallel to the top of the truss 1, so that the beam 3 can reciprocate in the first direction along the track 2. The beam 3 adopts a fixed frame structure, and the plane where the beam 3 is located is parallel to the plane where the track 2 is located. The pulley 4 is movably arranged on the beam 3, so that the pulley 4 can reciprocate in the second direction along the beam 3, and the second direction is perpendicular to the first direction. The mold 9 can be moved in multiple directions.

[0030] In some embodiments, the industrial computer 6 is fixedly mounted on the pulley 4 .

[0031] Specifically, Figure 1 As shown, a platform is provided on the top of the pulley 4, and an industrial computer 6 and a PLC controller 7 are fixedly provided on the top platform of the pulley 4. The industrial computer 6 is connected to the PLC controller 7 by wire to achieve communication connection. By fixing the industrial computer 6 and the PLC controller 7 on the top platform of the pulley 4, stability can be increased.

[0032] In some embodiments, the camera system 5 includes a connecting seat 540, an angle adjustment turntable 520 and an adjustable visual camera 510, the connecting seat 540 is fixedly connected to the pulley 4, the angle adjustment turntable 520 is rotatably connected to the connecting seat 540, and the adjustable visual camera 510 is fixedly connected to the angle adjustment turntable 520.

[0033] Specifically, Figure 1 and Figure 2 As shown, the camera system 5 is installed on the side wall of the trolley 4 to ensure that it slides with the trolley and thus maintains a real-time monitoring state with the mold 9 suspended below. Figure 2 As shown, the camera system 5 is fixedly connected to the pulley 4 via the connecting seat 540 , and the angle adjustment turntable 520 is used to connect the adjustable visual camera 510 and the connecting seat 540 . The angle adjustment turntable 520 adjusts the angle of the adjustable visual camera 510 by rotating relative to the connecting seat 540 .

[0034] In other embodiments, the camera system 5 includes a plurality of adjustable visual cameras 510, which are arranged at a plurality of preset positions, and the selection criteria of the plurality of preset positions are: the lifting area images collected by each adjustable visual camera 510 at its corresponding preset position include the mold 9, the site and the personnel 10. The lifting area images at multiple angles collected by the plurality of adjustable visual cameras 510 are used to further determine information such as the mold 9, the personnel's movements, the personnel's equipment, the personnel's positions and the boundary 910 of the danger zone, thereby improving the accuracy of the results.

[0035] In some embodiments, the angle adjustment dial 520 further includes a locking member, which is used to fix the angle adjustment dial 520 and the connecting seat 540 .

[0036] Specifically, Figure 2As shown, the adjustable visual camera 510 is fixedly connected to the angle adjustment dial 520, and the angle adjustment dial 520 is locked after fine adjustment. The locking member adopts a pin-jointed assembly, and a plurality of pin-jointed holes are provided along the circumference of the rear of the angle adjustment dial 520, and a positioning hole is fixedly provided on the connecting seat 540. By rotating the angle adjustment dial 520, the plurality of pin-jointed holes can be rotated relative to the positioning hole. After the angle adjustment of the angle adjustment dial 520 is completed, the positioning hole and the corresponding pin-jointed hole are respectively clamped by the two ends of the pin-jointed rod to realize the relative fixation of the angle adjustment dial 520 and the connecting seat 540. It can be understood by those skilled in the art that in other embodiments, the locking member can adopt any prior art locking structure to realize the relative fixation of the angle adjustment plate and the connecting seat 540. In other embodiments, the locking member is used to fix the angle adjustment dial 520 and the pulley 4. For example, the first end of the locking member is rotatably connected to the pulley 4, and the second end of the locking member is provided with a clamping claw. After the angle adjustment of the angle adjustment dial 520 is completed, the locking member clamps the angle adjustment dial 520 through the clamping claw to fix the angle adjustment dial 520 relative to the connecting seat 540 and the pulley 4. The locking member can achieve the relative stillness of the connecting seat 540 and the pulley 4 after the angle adjustment of the angle adjustment dial 520 is completed, so that the continuous images collected by the adjustable visual camera 510 correspond to the same viewing angle, thereby improving the stability and accuracy of the evaluation results.

[0037] In some embodiments, the camera system 5 further includes a vibration isolation pad 530 , which is disposed between the angle adjustment dial 520 and the connection seat 540 .

[0038] Specifically, Figure 2 As shown, the back of the angle adjustment turntable 520 is connected to the vibration isolation pad 530, which is made of hard polyurethane and can effectively block the vibration of the crane to ensure clear imaging; the vibration isolation pad 530 is fixedly connected to the connecting seat 540, and the connecting seat 540 is hard connected to the crane pulley 4. In another embodiment, the angle adjustment turntable 520 is fixedly connected to the first end of the vibration isolation pad 530 on the side facing the pulley 4, and the second end of the vibration isolation pad 530 is fixedly connected to the side wall of the pulley 4, so that the vibration isolation pad 530 can reduce the impact of the vibration during the lifting operation on the adjustable visual camera 510.

[0039] In some embodiments, the lifting area image includes a mold 9, personnel 10 and a site. The industrial computer 6 determines personnel actions, personnel equipment, personnel positions and danger zone boundaries 910 based on the lifting area image. The preset safety parameters include action parameters, equipment parameters, area parameters, mold parameters and path parameters. The action parameters are used to evaluate personnel actions, the equipment parameters are used to evaluate personnel equipment, the area parameters are used to evaluate the distance between the personnel position and the safety area, the mold parameters are used to evaluate mold attachments, and the path parameters are used to evaluate path obstacles.

[0040] Specifically, Figure 1 As shown, the lifting area is a preset lifting operation space of the mold 9, and the industrial computer 6 uses the visual-based action recognition algorithm of the prior art to recognize the action of the personnel through the lifting area image, and uses the object recognition algorithm of the prior art to recognize the personnel equipment through the lifting area image. The contour extraction method of the prior art is used to determine the contour of the personnel and the contour of the mold in the lifting area image, and the object recognition algorithm of the prior art is used to identify the mold model, and further, the danger zone boundary 910 is determined according to the mold model and the mold contour, and the danger zone boundary 910 is extended by the preset proportional coefficient of the mold contour. In some embodiments, different models of molds 9 correspond to the same preset proportional coefficient, and the danger zone boundary 910 of the mold 9 is obtained by extending the mold contour outward by the preset proportional coefficient. In another embodiment, different models of molds 9 correspond to different preset proportional coefficients, and the corresponding preset proportional coefficient is determined according to the identified mold model, and the danger zone boundary 910 is obtained by extending the mold contour outward by the preset proportional coefficient corresponding to the mold model. The method of quickly identifying and defining the lifting danger zone of molds 9 of different specifications and models can adapt to different lifting operation safety requirements.

[0041] The industrial computer 6 evaluates the identified personnel actions according to the preset action parameters, evaluates the identified personnel equipment according to the preset equipment parameters, and evaluates the distance between the personnel position and the danger zone boundary 910 according to the preset area parameters. When the personnel action is consistent with the action parameters, the personnel equipment is consistent with the equipment parameters, and the distance between the personnel position and the danger zone boundary 910 is within the interval of the area parameters, the lifting area image is determined to be qualified; when any of the following occurs: the personnel action is inconsistent with the action parameters, the personnel equipment is inconsistent with the equipment parameters, and the distance between the personnel position and the danger zone boundary 910 is not within the interval of the area parameters, the lifting area image is determined to be unqualified.

[0042] The intelligent recognition unit of the industrial computer 6 performs comprehensive and multi-angle image acquisition of the mold image and the mold path image, and establishes a mold evaluation model (i.e., mold parameters) and a path evaluation model (i.e., path parameters) through a machine learning algorithm. The mold parameters are used to evaluate whether there are any attachments other than the mold itself, such as leftover tools, in the mold in the lifting area image. The path parameters are used to evaluate whether there are any obstacles in the path in the lifting area image that block the movement of the mold. When there is an obstacle area on the mold or an obstacle on the mold movement path, the industrial computer 6 determines that the lifting area image is unqualified.

[0043] In another embodiment, the industrial computer 6 also obtains mold state parameters, and outputs an alarm signal when the mold hovering state is greater than a preset time. Specifically, the industrial computer 6 calculates the mold height through the lifting area image, and determines the mold hovering time through continuous lifting area images, and outputs an alarm signal when the mold hovering time is greater than the preset time. Alternatively, the industrial computer 6 obtains the pulley operation state through the pulley PLC controller 7, calculates the mold height in combination with the lifting area image, and can determine the mold hovering time, and outputs an alarm signal when the mold hovering time is greater than the preset time.

[0044] In some embodiments, the industrial computer 6 extracts the contours of the mold 9 and the personnel 10 based on the lifting area image to generate a grayscale image. The industrial computer 6 includes a reference comparison template 920. The reference comparison template 920 includes a plurality of continuous cells. Each of the plurality of cells uniquely corresponds to a grid number. The contour in the grayscale image is projected onto the reference comparison template 920. The contour of the mold is extended according to a preset ratio to determine the danger zone boundary 910. The lifting area image is evaluated based on the contour projection of the personnel 10 and the grid number of the danger zone boundary 910.

[0045] Specifically, Figure 3 As shown, in the calculation principle diagram of the mold 9 lifting danger zone, the industrial computer 6 receives and intercepts the lifting area image taken by the camera system 5, extracts the contours of the mold 9 and the personnel 10 (using the mature gray value principle technology), and projects the contours of the mold 9 and the personnel 10 on the reference comparison template 920. The mold contour projection method is extended outward by a certain value to obtain the mold 9 lifting danger zone boundary 910. It is only necessary to determine whether the contour of the operator 10 and the mold 9 lifting danger zone boundary 910 intersect. If they intersect, it is unsafe, and if they do not intersect, it is safe. The method of intersection determination is that each small cell on the reference comparison template 920 has a corresponding unique grid number, and it is only necessary to compare whether the grid number of the cell inside the lifting danger zone boundary 910 is repeated with the grid number of the cell occupied by the operator 10.

[0046] In some embodiments, the action parameters include pulling out the mold 9 hanging rod, pressing in the lifting wire rope 8, and pushing back the mold 9 hanging rod, and the equipment parameters include preset wearable devices.

[0047] Specifically, the industrial computer 6 further includes a visual recognition unit, which recognizes the actions of personnel and the equipment worn by personnel 10 according to the lifting area image. The industrial computer 6 compares the recognized actions of personnel and action parameters. When all the recognized actions of personnel are consistent with the action parameters, the recognized actions of personnel are determined to be qualified; when all the recognized equipment worn by personnel 10 are consistent with the preset wearable equipment, the recognized equipment worn by personnel 10 is determined to be qualified. In some embodiments, the preset wearable equipment includes a safety helmet, safety gloves, and a remote control.

[0048] On the other hand, a method for safe lifting operation of a mold 9 is provided, which adopts any of the above-mentioned safe lifting operation systems for a mold 9, and the method includes: in response to a start signal of the lifting device, collecting a lifting area image; evaluating the lifting area image based on preset safety parameters, generating a pulley start instruction when the lifting area image is qualified, and generating a pulley locking instruction when the lifting area image is unqualified, the pulley 4 drive instruction is used to control the pulley 4 to perform the lifting operation, and the pulley locking instruction is used to control the pulley 4 to lock.

[0049] Specifically, the PLC controller 7 of the lifting device outputs an on signal in response to the power-on signal of the pulley 4 .

[0050] The industrial computer 6 is electrically connected to the PLC controller 7 and receives a start signal. The industrial computer 6 controls the camera system 5 to collect images of the lifting area in response to the received start signal. In another embodiment, the visual camera start signal is sent by a remote controller of the lifting device.

[0051] The industrial computer 6 receives the lifting area image, and adopts the vision-based action recognition algorithm of the prior art to recognize the personnel actions through the lifting area image, and adopts the object recognition algorithm of the prior art to recognize the personnel equipment through the lifting area image; adopts the contour extraction method of the prior art to determine the personnel contour and the mold contour in the lifting area image, adopts the object recognition algorithm of the prior art to identify the mold model, and further, determines the danger zone boundary 910 according to the mold model and the mold contour, and the danger zone boundary 910 is extended by a preset proportional coefficient of the mold contour.

[0052] The industrial computer 6 evaluates the lifting area image based on preset safety parameters, which include action parameters and equipment parameters. When all the identified actions of the personnel are consistent with the action parameters, the identified actions of the personnel are judged to be qualified; when the equipment worn by the identified personnel 10 is all consistent with the preset wearable equipment, the equipment worn by the identified personnel 10 is judged to be qualified. The outlines of the mold 9 and the personnel 10 are projected onto the reference comparison template 920. When the grid number of the cells inside the lifting danger zone boundary 910 does not overlap with the grid number of the cells occupied by the operator 10, the personnel position is qualified. When the personnel action, the equipment worn by the personnel 10 and the personnel position are all qualified, a pulley start instruction is generated. When any one of the personnel action, the equipment worn by the personnel 10 and the personnel position is unqualified, the evaluation result of the lifting area image is unqualified, and the industrial computer 6 generates a pulley locking instruction.

[0053] The PLC controller 7 of the lifting device executes the lifting operation of the mold 9 in response to the pulley start instruction output by the industrial computer 6; the PLC controller 7 of the lifting device executes the locking control of the pulley 4 in response to the pulley locking instruction output by the industrial computer 6.

[0054] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art 10 without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art 10 to understand the present invention.

Claims

1. A mold lifting safety operation system, characterized in that: include: A lifting device, the lifting device comprising a bracket and a pulley, the pulley being movably arranged on the bracket; A camera system, wherein the camera system is used to collect images of the lifting area; An industrial computer, the industrial computer is communicatively connected with the camera system, the industrial computer receives the lifting area image, the industrial computer includes preset safety parameters, the industrial computer evaluates the lifting area image according to the preset safety parameters, the industrial computer generates a pulley start instruction when the lifting area image is qualified, and the industrial computer generates a pulley locking instruction when the lifting area image is unqualified, the controller is electrically connected to the pulley, the pulley drive instruction is used to control the pulley to perform a lifting operation, and the pulley locking instruction is used to control the pulley to lock.

2. The system according to claim 1, characterized in that The support comprises a truss, a track and a beam, the track is fixedly arranged on the top end of the truss, the beam is movably arranged on the track, and the pulley is movably arranged on the beam.

3. The system according to claim 2, characterized in that The industrial computer is fixedly arranged on the pulley.

4. The system according to claim 2, characterized in that The camera system includes a connecting seat, an angle adjustment turntable and an adjustable visual camera. The connecting seat is fixedly connected to the pulley, the angle adjustment turntable is rotatably connected to the connecting seat, and the adjustable visual camera is fixedly connected to the angle adjustment turntable.

5. The system according to claim 4, characterized in that The angle adjustment turntable further comprises a locking member, and the locking member is used to fix the angle adjustment turntable and the connecting seat.

6. The system according to claim 4, characterized in that The camera system further comprises a vibration isolation pad, which is arranged between the angle adjustment dial and the connecting seat.

7. The system according to claim 1, characterized in that The lifting area image includes molds, personnel and sites. The industrial computer determines personnel actions, personnel equipment, personnel positions and danger zone boundaries based on the lifting area image. The preset safety parameters include action parameters, equipment parameters, area parameters, mold parameters and path parameters. The action parameters are used to evaluate personnel actions, the equipment parameters are used to evaluate personnel equipment, the area parameters are used to evaluate the distance between the personnel position and the safety area, the mold parameters are used to evaluate mold attachments, and the path parameters are used to evaluate path obstacles.

8. The system according to claim 7, characterized in that The industrial computer extracts the contours of the mold and personnel based on the lifting area image to generate a grayscale image. The industrial computer includes a reference comparison template, and the reference comparison template includes a plurality of continuous cells. Each of the plurality of cells uniquely corresponds to a grid number. The contour in the grayscale image is projected onto the reference comparison template, and the contour of the mold is extended according to a preset ratio to determine the boundary of the danger zone. The lifting area image is evaluated based on the projection of the contour of the personnel and the grid number of the boundary of the danger zone.

9. The system according to claim 8, characterized in that The action parameters include pulling out the mold hanging rod, pressing in the lifting wire rope, and pushing back the mold hanging rod, and the equipment parameters include preset wearable devices.

10. A safe method for lifting a mold, characterized in that: Using the mold lifting safety operation system as described in any one of claims 1 to 9, the method includes: In response to a start signal of the lifting device, collecting a lifting area image; The lifting area image is evaluated based on preset safety parameters, and a pulley start instruction is generated when the lifting area image is qualified, and a pulley locking instruction is generated when the lifting area image is unqualified. The pulley drive instruction is used to control the pulley to perform lifting operations, and the pulley locking instruction is used to control the pulley to lock.

Images