CN113353735B - Automatic length measuring and positioning and circulating automatic coil unloading method for high-speed wire coil unloading - Google Patents
Automatic length measuring and positioning and circulating automatic coil unloading method for high-speed wire coil unloading Download PDFInfo
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- CN113353735B CN113353735B CN202110580235.2A CN202110580235A CN113353735B CN 113353735 B CN113353735 B CN 113353735B CN 202110580235 A CN202110580235 A CN 202110580235A CN 113353735 B CN113353735 B CN 113353735B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/28—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for discharging completed packages from machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
Abstract
The invention discloses an automatic length measuring, positioning and circulating automatic coil discharging method for high-speed wire coil discharging, wherein when a first reflecting photoelectric switch, a second reflecting photoelectric switch and a third reflecting photoelectric switch are all shielded, signals are provided to indicate that three coils are fully discharged on a coil discharging platform, and at this time, a coil discharging trolley part stops on a coil discharging rack and does not discharge the coils any more, and automatic coil discharging in the next period is carried out after three heavy coils are lifted by a crane, so that seamless contact between the coils and coils when the high-speed wire coil is discharged is realized, because the coil discharging trolley part is automatically controlled to work, the operation of an operator for discharging the coils for a long time is not needed, the labor intensity is reduced, the labor efficiency is high, the mental fatigue is not caused, and the occurrence of operation accidents is avoided; the control part automatically controls the coil stripping trolley part to place coils of three high-wire coils on the coil stripping rack in a gapless and aligned mode, so that no gap exists between the coils on the coil stripping rack, the coils of the high-wire coils do not need to move again, and the surface quality of wires is guaranteed.
Description
Technical Field
The invention relates to an automatic length measuring, positioning and circulating automatic coil stripping method for high-speed wire coil stripping, and belongs to the technical field of steel rolling high-speed wire coil stripping.
Background
The coil unloading station is the last procedure for producing high-speed wire at the tail end of a P/F production line, and is mainly responsible for unloading a coil formed by packaging from a C-shaped hook of the P/F line, transporting the coil to an unloading platform through a coil transporting trolley, and hoisting the coil to a finished product warehouse area by using a travelling crane from the unloading platform for stacking or loading and transporting, the operation of the coil unloading station is always manually operated at present, each team needs an operator to operate the trolley to unload the coil, the unloading of a coil of steel needs four buttons, the four steps are divided into four steps to complete the ascending, advancing, descending and retreating of the trolley, the unloading of 380 coils of steel for each team needs the manual operation of the buttons 1520 times, although the coil unloading of the high-speed wire coil can be completed, the following problems exist:
1. an operator can unload the coil for a long time, so that the labor intensity is high, the labor efficiency is low, the operation is harsh, mental fatigue is easily caused, and certain operation accidents frequently occur, such as coil falling caused by that the coil is unloaded when the trolley does not rise in place, and the trolley does not stop in time when moving forward, and the coil unloading equipment is broken by smashing, so that the shutdown is caused;
2. when the coil stripping trolley is used for coil stripping, three coils need to be placed to be coiled on a coil stripping platform, and the coils need to be aligned and attached tightly, the efficiency is improved by lifting the coils at one time, when the three coils are placed by manual coil stripping, the running of the trolley is completely controlled by an operator, when the operation is stopped too early, gaps are placed between the coils and the coils on a rack, when the gaps between the two coils are large, the travelling crane often needs to align the coils by using an electromagnetic disc on the rack when hanging from the coil stripping rack, or the travelling crane hangs from the coil stripping rack and slides on the ground to enable the two coils to be attached tightly head and tail, the coils and the ground friction and the friction impact between the coils and the travelling crane electromagnetic disc occur in the secondary alignment process, the coil surface scratch is serious, and the surface quality of a wire rod is influenced.
In the Chinese patent publication No. CN110817530B, the method for automatically and accurately unloading the finished wire rod coil uses an encoder to realize the control of an accurate position, and the method for automatically positioning and placing the coil and circularly and automatically unloading the coil by additionally arranging the encoder is not suitable when a hydraulically-driven high-speed wire coil unloading trolley is used instead of being driven by a motor, and meanwhile, the encoder has high purchase cost.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic length measuring and positioning and circulating automatic coil discharging method for high-speed wire coil discharging.
The invention is realized by the following technical scheme.
The invention provides an automatic length measuring and positioning and circular automatic coil stripping method for high-speed wire coil stripping, which is realized by a coil stripping system and comprises the following steps:
step one, stably aligning and unloading a first high-wire coil: the C-shaped hook hung with the high-wire coil arrives at a coil stripping station, the high-wire coil shields the light path of a reflector E and a detector E, a detection switch formed by a reflected photoelectric switch detects that the C-shaped hook is clamped by a high-wire coil clamping device, a stopper is closed and the coil can be stripped, a PLC control center detects that a first reflected photoelectric switch, a second reflected photoelectric switch and a third reflected photoelectric switch at the periphery of a coil stripping rack are not shielded and have no signal, a coil stripping trolley part is at an initial position (coil stripping position), a lifting hydraulic cylinder is controlled to automatically ascend to lift a first high-wire coil and begin to strip coils to a first position, after the coils are lifted to the first position, the PLC control center controls a proportional electromagnetic valve to enable a hydraulic motor to drive a roller to move forwards, a bearing platform of the coil stripping trolley part supports the first high-wire coil to move forwards to a coil stripping platform, the light of the detector D and the reflector D of the fourth reflected photoelectric switch is blocked to detect a signal, the timer of the PLC control center starts to count, after the coil is conveyed by the uncoiling trolley part and leaves the fourth reflected photoelectric switch, the timer of the PLC control center stops timing for a first time, when the light of the detector C and the reflector C of the third reflected photoelectric switch is blocked to detect the signal, the second timer of the PLC control center stops timing, because the distance from the fourth reflected photoelectric switch to the top end of the third reflected photoelectric switch and the uncoiling platform is a fixed value, according to the relation of the distance, the speed and the time (speed = distance/time), the program automatically calculates the running speed and the coil length of the trolley, the running time from the fourth reflected photoelectric switch to the first reflected photoelectric switch is delayed, the signal is detected by the first reflected photoelectric switch, and the uncoiling trolley part stops advancing, the PLC control center automatically controls the lifting hydraulic cylinder to descend through the two-way electromagnetic valve to unload the first coil to the first reflection photoelectric switch position of the coil unloading platform. When the bearing platform descends to the right position, the first coil is unloaded, the clamp of the C-shaped hook is automatically loosened, the stopper is opened, the C-shaped hook runs out of the coil unloading station, the coil unloading trolley returns to the initial coil unloading position after partial coil unloading, the distance and the delay time of the second high-line coil needing to travel are automatically calculated, and the second coil is waited for arriving.
Step two, stably aligning and unloading a second high-wire coil: the detector A of the first reflection photoelectric switch and the reflector A are shielded by light, the second reflection photoelectric switch and the third reflection photoelectric switch are not shielded by light and have no signal, the coil stripping trolley part can automatically place the second high-line coil at the second position of the coil stripping platform, the stopping position of the coil stripping trolley part is the distance from the fourth reflection photoelectric switch to the top of the coil stripping platform minus the length of the first high-line coil, when the end face of the second high-line coil is close to the first high-line coil, the coil stripping trolley part stops advancing, descends to unload the second high-line coil onto the coil stripping platform, the coil stripping trolley part returns to the initial coil stripping position after coil stripping is finished, the distance and the delay time of the third high-line coil needing to travel are automatically calculated, and the arrival of the third high-line coil is waited.
Step three, stably aligning and unloading a coil of a third high-wire coil: the light of the first reflection photoelectric switch and the light of the second reflection photoelectric switch are shielded to form signals, the third reflection photoelectric switch is not shielded to form no signals, the coil unloading trolley part automatically puts the third high-line coil at the third position of the coil unloading platform, the stopping position of the coil unloading trolley part is that the distance from the fourth reflection photoelectric switch to the top end of the coil unloading platform subtracts the lengths of the first high-line coil and the second high-line coil, when the end face of the third high-line coil is close to the second high-line coil, the coil unloading trolley part stops advancing, descends to unload the third high-line coil onto the coil unloading platform, the coil unloading trolley part returns to the initial coil unloading position after coil unloading, and the automatic coil unloading of three coils hung by a traveling crane is completed.
An uncoiling system comprising: the coil stripping trolley part is arranged in the coil stripping station pit and drives the high-line coil to lift and move back and forth;
the coil stripping rack is arranged in the coil stripping station pit and is far away from the coil stripping trolley to place the high-speed wire coil for convenient hoisting;
the control part is arranged on the side edge of the coil unloading station pit and accurately controls the lifting and the back-and-forth movement of the coil unloading trolley part, and the control part automatically controls the coil unloading trolley part to sequentially place coils of three high-wire coils on the coil unloading rack in a gapless and aligned mode.
When the high-wire coil is positioned on the coil stripping trolley part, the control part automatically controls the coil stripping trolley part to sequentially place coils of three high-wire coils on the coil stripping rack in a gapless and aligned manner, and the control part automatically controls the coil stripping trolley part to work, so that an operator does not need to operate the coil stripping for a long time, the labor intensity is reduced, the labor efficiency is high, the mental fatigue cannot be caused, and the occurrence of operation accidents is avoided; the control part automatically controls the coil stripping trolley part to place the coils of three high-wire coils on the coil stripping rack in a gapless and aligned mode, so that no gap exists between the coils on the coil stripping rack, the coils of the high-wire coils do not need to move again, the condition that the coils are damaged by friction is avoided, and the surface quality of the wires is guaranteed.
The control part comprises four groups of reflective photoelectric switches arranged at the top of the side edge of the pit of the coil stripping station;
a detector A and a reflector A of a first reflecting photoelectric switch are oppositely fixed on the side edge of the coil stripping rack at intervals from the inner wall of the coil stripping station pit;
the detector B and the reflector B of the second photoelectric switch are oppositely fixed on the side edge which is spaced from the first group of photoelectric switches;
the detector C and the reflector C of the third reflective photoelectric switch are oppositely fixed on the side which is separated from the second reflective photoelectric switch;
the detector D and the reflector D of the fourth reflective photoelectric switch are oppositely fixed on the side edge which is spaced from the third reflective photoelectric switch;
the signal output ends of the first reflection photoelectric switch, the second reflection photoelectric switch, the third reflection photoelectric switch and the fourth reflection photoelectric switch are connected with the signal input end of a PLC control center, and the signal output end of the PLC control center is electrically connected with the electrical control ends of the two-way electromagnetic valve and the proportional electromagnetic valve.
The coil stripping trolley part comprises a bearing platform capable of bearing high-line coils, a lifting hydraulic cylinder fixed at the bottom of the bearing platform and driving the bearing platform to lift, a bottom platform fixed at the bottom of the lifting hydraulic cylinder, a plurality of rollers capable of being installed at the bottom of the bottom platform in a rolling mode and driving the whole to move back and forth, and a hydraulic motor fixed at a rotating shaft of the bottom platform and driving the rollers to rotate, wherein an oil inlet and an oil outlet of the lifting hydraulic cylinder are correspondingly communicated with an oil port of a two-way solenoid valve, an oil inlet and an oil outlet of the hydraulic motor are correspondingly communicated with an oil port of a proportional solenoid valve, and signals of a first reflected photoelectric switch, a second reflected photoelectric switch, a third reflected photoelectric switch and a fourth reflected photoelectric switch are input into a PLC control center and then are input into the two-way solenoid valve and the proportional solenoid valve corresponding to the PLC control center, so that lifting telescopic control of the lifting hydraulic cylinder and rotary motion control of driving the rollers to move back and forth to the hydraulic motor are realized.
The coil stripping rack comprises a coil stripping platform which is consistent with the bearing platform in shape and size and is larger than the bearing platform, and a plurality of support bodies which are distributed at intervals and support the coil stripping platform, wherein the bearing platform bears the high-speed coil and can lift in the middle of the coil stripping platform to discharge the high-speed coil.
The coil stripping platform is characterized in that a fifth reflection photoelectric switch is mounted at the tail end of the coil stripping platform, a detector G and a reflector G of the fifth reflection photoelectric switch are oppositely fixed at the tail end of the coil stripping platform, a signal output end of the fifth reflection photoelectric switch is connected with a signal input end of a PLC control center, and the coil stripping trolley is guaranteed to be safely and stably stopped when being close to the tail end of the coil stripping platform under the control of the PLC control center.
And an operation track for guiding the front and back movement of the roller is fixedly laid in the coil unloading station pit, the operation track is positioned below the middle part of the coil unloading platform, and the shape of the roller is complementary with the operation track to form an embedded structure in a rolling state.
The C-shaped hook part is arranged on a vertical frame of the P/F wire, is used for hoisting the high-speed wire coil at the tail end of the P/F wire and can detect whether the high-speed wire coil exists or not.
The C-shaped hook part comprises a P/F wire track arranged on a stand of the P/F wire; c-shaped hooks hung on the P/F line rails; the two ends of the front station end and the rear station end of the P/F line track are respectively provided with a stopper, a clamp, a backstop and a balance beam, the C-shaped hook is controlled by the stopper to stop moving when moving to the front station end and the rear station end of the P/F line track, the clamp clamps the C-shaped hook, the balance beam keeps the C-shaped hook in a good balance state,
the stand is provided with a detection switch for detecting whether the coil of the high-speed wire coil is on the C-shaped hook, and the switch end of the detection switch is connected with the power supply of the stopper and the clamper in series.
When the detection switch detects that the coil with the high-speed wire coil is arranged on the C-shaped hook, the switch end of the detection switch is closed, so that the power supply ends of the stopper and the clamping device are closed, the C-shaped hook is clamped by the clamping device, and when the C-shaped hook moves to the front station end and the rear station end of the P/F wire track, the stopper can control the C-shaped hook to stop moving; when the detection switch detects that the coil of the high-wire coil is not arranged on the C-shaped hook, the switch end of the detection switch is disconnected, so that the power ends of the stopper and the clamping device are disconnected and do not work, the problem that the stopper and the clamping device can act when the C-shaped hook is not arranged on the coil, the waste of driving motion energy is avoided, and the controllability of the stopper and the clamping device is improved.
The detection switch is a reflection photoelectric switch, the detector E and the reflector E of the reflection photoelectric switch are respectively installed on opposite positions of the vertical frame, light rays emitted by the detector E are reflected back by the reflector E, the switch end of the reflection photoelectric switch is connected with the stopper and the power supply of the clamping device in series, the emission path of the light rays is in the spatial position of a high-line coil on the C-shaped hook, after the high-line coil on the C-shaped hook blocks the light rays, the switch end of the reflection photoelectric switch is closed, the stopper and the power supply of the clamping device are powered on, when the coil without the high-line coil on the C-shaped hook blocks the light rays, the switch end of the reflection photoelectric switch is normally opened, and the stopper and the power supply of the clamping device are not powered on.
And the detector E is detachably and fixedly arranged on the stand.
The detector E is fixedly arranged on the vertical frame through screws or bolts, and the detachable fixed installation is realized.
The reflector E is detachably and fixedly arranged on the stand.
The reflector E is fixedly arranged on the vertical frame through screws or bolts, so that the reflector E can be detachably and fixedly arranged.
The invention has the beneficial effects that: when the first reflective photoelectric switch, the second reflective photoelectric switch and the third reflective photoelectric switch are all shielded, signals are provided, and the situation that three coils are fully unloaded on the coil unloading platform is shown, at this time, the coil unloading trolley part stops at the coil unloading rack and does not unload coils any more, and automatic coil unloading in the next period is carried out after the three heavy coils are lifted by the crane, so that seamless contact between the coils and coils when high-wire coils are unloaded is realized, because the coil unloading trolley part is automatically controlled to work, the operation of an operator for long time on coil unloading is not needed, the labor intensity is reduced, the labor efficiency is high, mental fatigue is not caused, and the occurrence of operation accidents is avoided; the control part automatically controls the coil stripping trolley part to place the coils of three high-wire coils on the coil stripping rack in a gapless and aligning mode, so that no gap is formed between the coils on the coil stripping rack, the coils of the high-wire coils do not need to move again, the condition that the coils are damaged by friction is avoided, the surface quality of the wires is guaranteed, and the cost of the encoder is 5 times that of the reflective photoelectric switch, so that the cost of the reflective photoelectric switch is effectively reduced.
Drawings
FIG. 1 is a rear view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic front cross-sectional view of FIG. 2;
FIG. 4 is a schematic top view of FIG. 2;
FIG. 5 is a schematic diagram of a PLC control center connection of the present invention;
FIG. 6 is a schematic view of the C-hook portion reflective photoelectric switch, stopper, clamp connection of the present invention;
FIG. 7 is a program diagram of the PLC control center automatically calculating the operating speed according to the present invention;
FIG. 8 is a program diagram of the PLC control center for controlling the positioning of the operation of the first, second and third reflective photoelectric switches according to the present invention;
fig. 9 is a program diagram for positioning and controlling the operation of the fifth reflective photoelectric switch by the PLC control center according to the present invention.
In the figure: 1-coil stripping trolley part; 11-a load-bearing platform; 12-a hydraulic lifting cylinder; 13-a bottom platform; 14-a roller; 15-a hydraulic motor; 16-a running track; 2-coil stripping rack; 21-an uncoiling platform; 22-a support; 23-detector G; 24-mirror G; 3-a control part; 31-detector a; 32-mirror A; 33-detector B; 34-mirror B; 35-detector C; 36-mirror C; 37-detector D; 38-mirror D; 391-a two-way solenoid valve; 392-proportional solenoid valve; a 4-C shaped hook portion; 41-C type hook; 42-detector E; 43-mirror E; 5-coil unloading station pit; 6-high-speed wire coil; 7-erecting the frame.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-9.
The invention relates to an automatic length measuring and positioning and circulating automatic coil stripping method for high-speed wire coil stripping, which is realized by a coil stripping system and comprises the following steps:
step one, stably aligning and unloading a coil of a first high-wire coil 6: when the high-speed wire coil 6 is automatically unloaded, the C-shaped hook 41 hung with the high-speed wire coil 6 reaches an unloading station, the high-speed wire coil 6 shields the light path of the reflector E43 and the detector E42, the detection switch formed by the reflected photoelectric switch detects that the high-speed wire coil 6 is clamped by the clamping device of the C-shaped hook 41, the stopper is closed and the coil can be unloaded, when the PLC control center detects that the first reflected photoelectric switch, the second reflected photoelectric switch and the third reflected photoelectric switch around the unloading platform frame 2 are not shielded and have no signal, the unloading trolley part 1 is at an initial position (unloading position), the lifting hydraulic cylinder 12 is controlled to automatically ascend to lift up the first high-speed wire coil 6 and start to unload the coil to the first position, after the coils are lifted to the first position, the PLC control center enables the hydraulic motor 15 to drive the roller 14 to move forwards through the control proportional electromagnetic valve 392, the bearing platform 11 of the unloading trolley part 1 supports the first high-speed wire coil 6 to move forwards to the unloading platform 21, the detector D37 and the reflector D38 of the fourth reflected photoelectric switch are blocked to detect a signal, the timer of the PLC control center starts to count, after the coil is conveyed by the decoiling trolley part 1 and leaves the fourth reflected photoelectric switch, the timer of the PLC control center stops timing for the first time, when the detector C35 and the reflector C36 of the third reflected photoelectric switch are blocked to detect the signal, the second timer of the PLC control center stops timing, because the distance from the fourth reflected photoelectric switch to the top end of the third reflected photoelectric switch and the decoiling platform 21 is a fixed value, the program automatically calculates the running speed and the coil length of the trolley according to the relation of the distance, the speed and the time (speed = distance/time), the running time from the fourth reflected photoelectric switch to the first reflected photoelectric switch is delayed and the first reflected photoelectric switch detects the signal, the coil stripping trolley part 1 stops advancing, and the PLC control center automatically controls the lifting hydraulic cylinder 12 to descend through the two-way electromagnetic valve 391 to discharge the first coil to the first reflecting photoelectric switch position of the coil stripping platform 21. When the bearing platform 11 descends to the right position, the first coil unloading is finished, the clamp of the C-shaped hook 41 is automatically loosened, the stopper is opened, the C-shaped hook 41 exits from the coil unloading station, the coil unloading trolley part 1 returns to the initial coil unloading position after coil unloading is finished, and the second coil is waited for to arrive.
Step two, stably aligning and unloading the coil of the second high-wire coil 6: the light of the detector A31 and the reflector A32 of the first photoelectric switch is blocked by a signal, the second photoelectric switch and the third photoelectric switch are not blocked by no signal, the coil stripping trolley part 1 can automatically place the second high-wire coil 6 at the second position of the coil stripping platform 21, the stop position of the coil stripping trolley part 1 is the distance from the fourth photoelectric switch to the top of the coil stripping platform 21 minus the length of the first high-wire coil 6, when the end surface of the second high-wire coil 6 is close to the first high-wire coil 6, the coil stripping trolley part 1 stops advancing, descends to strip the second high-wire coil 6 onto the coil stripping platform 21, the coil stripping trolley part 1 returns to the initial coil stripping position after coil stripping, the distance and the delay time of the second high-wire coil 6 needing to travel are automatically calculated, and the arrival of the second high-wire coil 6 is waited.
Step three, stably aligning and unloading the coil of the third high-wire coil 6: the light of the first reflective photoelectric switch and the light of the second reflective photoelectric switch are shielded to form signals, the third reflective photoelectric switch is not shielded to form no signals, the coil stripping trolley part 1 automatically puts the third high-wire coil 6 at the third position of the coil stripping platform 21, the stopping position of the coil stripping trolley part 1 is the distance from the fourth reflective photoelectric switch to the top end of the coil stripping platform 21 minus the lengths of the first high-wire coil 6 and the second high-wire coil 6, when the end face of the third high-wire coil 6 is close to the second high-wire coil 6, the coil stripping trolley part 1 stops advancing, descends to discharge the third high-wire coil 6 onto the coil stripping platform 21, the coil stripping trolley part 1 returns to the initial coil stripping position after coil stripping is finished, and automatic coil stripping of three coils in one-time in travelling crane hoisting is finished.
When the first reflective photoelectric switch, the second reflective photoelectric switch and the third reflective photoelectric switch are all blocked, signals are provided, which indicate that three coils are fully unloaded on the coil unloading platform 21, at this time, the coil unloading trolley part 1 stops at the coil unloading rack 2 and is not unloaded any more, and the next period of automatic coil unloading is carried out after waiting for the lifting trolley to lift three heavy coils away, so that seamless contact between the coils and the high-wire coil 6 during coil unloading is realized, because the coil unloading trolley part 1 is automatically controlled to work, the long-time operation of an operator on coil unloading is not needed, the labor intensity is reduced, the labor efficiency is high, the mental fatigue is not caused, and the occurrence of operation accidents is avoided; the control part 3 automatically controls the coil stripping trolley part 1 to place the coils of the three high-wire coils 6 on the coil stripping rack 2 in a gapless and aligning mode, so that no gap is formed between the coils and the coil stripping rack 2, the coils of the high-wire coils 6 do not need to move again, the condition that the coils are damaged by friction is avoided, the surface quality of the wires is guaranteed, and the cost is effectively reduced by using the reflective photoelectric switch due to the fact that the purchasing cost of the encoder is 5 times that of the reflective photoelectric switch.
An uncoiling system comprising: the coil stripping trolley part 1 is arranged in a coil stripping station pit 5 and drives the high-wire coil 6 to move up and down and move back and forth;
the coil stripping rack 2 is arranged in the coil stripping station pit 5, is far away from the coil stripping trolley part 1, and is used for placing the high-speed wire coil 6 for convenient hoisting;
the control part 3 is arranged at the side edge of the coil stripping station pit 5 and accurately controls the lifting and the back-and-forth movement of the coil stripping trolley part 1, and the control part 3 automatically controls the coil stripping trolley part 1 to sequentially place coils of three high-wire coils 6 on the coil stripping rack 2 without gaps and in alignment.
When the high-speed wire coil 6 is positioned on the coil stripping trolley part 1, the control part 3 automatically controls the coil stripping trolley part 1 to sequentially place coils of three high-speed wire coils 6 on the coil stripping rack 2 in a gapless and aligned mode, and the control part 3 automatically controls the coil stripping trolley part 1 to work, so that an operator does not need to operate the coil stripping for a long time, the labor intensity is reduced, the labor efficiency is high, the mental fatigue is avoided, and the operation accidents are avoided; the control part 3 automatically controls the coil unloading trolley part 1 to place coils of three high-wire coils 6 on the coil unloading rack 2 in a gapless and aligned mode, so that no gap exists between the coils on the coil unloading rack 2, the coils of the high-wire coils 6 do not need to move again, the condition that the coils are damaged by friction is avoided, and the surface quality of wires is guaranteed.
The control part 3 comprises four groups of reflective photoelectric switches which are arranged at a position 0.95m away from the top of the side edge of the coil stripping station pit 5, and the type of the reflective photoelectric switches is LOS-RS-4ZC1;
the detector a31 and the mirror a32 of the first reflective photoelectric switch are oppositely and detachably fixed on the side of the stripping rack 2 which is 0.35m away from the inner wall of the stripping station pit 5;
the detector B33 and mirror B34 of the second set of reflective photoelectric switches are removably fixed opposite on the side spaced 2.5m apart from the first set of reflective photoelectric switches;
the detector C35 and mirror C36 of the third reflective photoelectric switch are removably fixed opposite on the side spaced 2m apart from the second reflective photoelectric switch;
the detector D37 and mirror D38 of the fourth reflective photoelectric switch are removably fixed opposite on the side spaced 2.5m apart from the third reflective photoelectric switch;
the signal output ends of the first reflective photoelectric switch, the second reflective photoelectric switch, the third reflective photoelectric switch and the fourth reflective photoelectric switch are connected with the signal input end of a PLC control center (GE-9030 PLC), and the signal output end of the PLC control center is electrically connected with the electrical control ends of the two-way electromagnetic valve 391 and the proportional electromagnetic valve 392.
The coil stripping trolley part 1 comprises a bearing platform 11 capable of bearing high-line coils 6, a lifting hydraulic cylinder 12 fixed at the bottom of the bearing platform 11 and driving the bearing platform 11 to lift, a bottom platform 13 fixed at the bottom of the lifting hydraulic cylinder 12, a plurality of rollers 14 capable of being installed at the bottom of the bottom platform 13 in a rolling mode and driving the whole to move back and forth, a hydraulic motor 15 fixedly installed at a rotating shaft of the bottom platform 13 and driving the rollers 14 to rotate, the hydraulic motor 15 can be matched with a speed reducer, an output gear of the speed reducer is in meshing transmission with gears arranged on the rollers 14, oil inlets and outlets of the lifting hydraulic cylinder 12 are correspondingly communicated with oil ports of a bidirectional electromagnetic valve 391, oil inlets and outlets of the hydraulic motor 15 are correspondingly communicated with oil ports of a proportional electromagnetic valve 392, signals of a first reflected photoelectric switch, a second reflected photoelectric switch, a third reflected photoelectric switch and a fourth reflected photoelectric switch are input into a PLC control center and then enter the bidirectional electromagnetic valve 391 and the proportional electromagnetic valve 392 corresponding to the PLC control center, so that lifting telescopic control over the lifting hydraulic cylinder 12 and the rotary motion control over the forward and backward movement of the hydraulic motor 15 are realized, and backward movement of the PLC control program can refer to figure 7 and figure 8.
The coil unloading rack 2 comprises a coil unloading platform 21 which is consistent with the shape of the bearing platform 11 and larger than the bearing platform 11 in size, and a plurality of support bodies 22 which are distributed at intervals and used for supporting the coil unloading platform 21, wherein the bearing platform 11 bears the high-wire coil 6 and can lift in the middle of the coil unloading platform 21 to unload the high-wire coil 6.
The tail end of the coil stripping platform 21 is provided with a fifth reflection photoelectric switch, a detector G23 and a reflector G24 of the fifth reflection photoelectric switch are oppositely and detachably fixed at the tail end of the coil stripping platform 21, a signal output end of the fifth reflection photoelectric switch is connected with a signal input end of a PLC control center, safe and stable parking of the coil stripping trolley part 1 close to the tail end of the coil stripping platform 21 is guaranteed through control of the PLC control center, and a PLC control program can refer to fig. 9.
The coil stripping station pit 5 is fixedly paved with a running track 16 for guiding the roller 14 to move back and forth, the running track 16 is positioned below the middle part of the coil stripping platform 21, and the shape of the roller 14 is complementary with the running track 66 to form an embedded structure in a rolling state.
The high-speed wire coil lifting device is also provided with a C-shaped hook part 4 which is arranged on a vertical frame 7 of the P/F wire, lifts the high-speed wire coil 6 at the tail end of the P/F wire and can detect the existence of the high-speed wire coil 6.
The C-hook section 4 comprises a P/F line track (this is not identified in the prior art drawings) mounted on a P/F line stand 7; c-shaped hook 41 hung on the P/F line track; a stopper, a clamp, a backstop and a balance beam are respectively arranged at two end parts of the front station end and the rear station end of the P/F line track, the C-shaped hook 41 is controlled by the stopper to stop moving when moving to the front station end and the rear station end of the P/F line track, the clamp clamps the C-shaped hook 41, the balance beam keeps the C-shaped hook 41 in a good balance state,
wherein, the stand 7 is provided with a detection switch for detecting whether the coil of the high-speed wire coil 6 is on the C-shaped hook 41, and the switch end of the detection switch is connected with the power supply of the stopper and the clamper in series.
When the detection switch detects that the coil of the high-wire coil 6 on the C-shaped hook 41 is coiled, the switch end of the detection switch is closed, so that the power supply ends of the stopper and the clamping device are closed, the clamping device clamps the C-shaped hook 41, and when the C-shaped hook 41 moves to the front station end and the rear station end of the P/F wire track, the stopper can control the C-shaped hook to stop moving; when the detection switch detects that no high-wire coil 6 is coiled on the C-shaped hook 41, the switch end of the detection switch is disconnected, so that the power ends of the stopper and the clamping device are disconnected and do not work, the problem that the stopper and the clamping device can act when no empty coil hook is coiled on the C-shaped hook is solved, the waste of driving movement energy is avoided, and the controllability of the stopper and the clamping device is improved.
The detection switch is a LOS-RS-4ZC1 type reflective photoelectric switch, a detector E42 and a reflector E43 of the reflective photoelectric switch are respectively installed on opposite positions of a vertical frame 7, light emitted by the detector E42 is reflected back by the reflector E43, the switch end of the reflective photoelectric switch is connected with a power supply of a stopper and a clamp in series, the emitting path of the light passes through the spatial position of a high-line coil 6 on a C-shaped hook 41, when the coil of the high-line coil 6 on the C-shaped hook 41 shields the light, the switch end of the reflective photoelectric switch is closed, the power supply of the stopper and the clamp is electrified, when the coil of the non-high-line coil 6 on the C-shaped hook 41 shields the light, the switch end of the reflective photoelectric switch is normally opened, and the power supply of the stopper and the clamp is not electrified.
The detector E42 is detachably and fixedly mounted on the stand 7.
The detector E42 is fixedly arranged on the vertical frame 7 through screws or bolts, so that the detector E can be detachably and fixedly arranged.
The reflector E43 is detachably and fixedly arranged on the stand 7.
The reflector E43 is fixedly arranged on the vertical frame 7 through screws or bolts, so that the detachable fixed installation is realized.
The unrepresented or marked part is the prior art, and the prior art that the China patent publication number is CN103466301A is used for a coil stripping station of a P/F line transportation system and the like is disclosed.
Claims (7)
1. An automatic length measuring and positioning and circulating automatic coil unloading method for high-speed wire coil unloading is characterized by being realized by a coil unloading system and comprising the following steps:
the method comprises the following steps of firstly, stably aligning and unloading a coil of a first high-wire coil (6);
the first step comprises the following steps: when the PLC control center detects that a first reflected photoelectric switch, a second reflected photoelectric switch and a third reflected photoelectric switch at the periphery of an uncoiling rack (2) are not blocked and have no signal, the PLC control center controls a proportional solenoid valve (392) to enable a hydraulic motor (15) to drive a roller (14) to move forwards, the light of a detector D (37) and a reflector D (38) of the fourth reflected photoelectric switch is blocked and has a signal, when a timer of the PLC control center starts to count, after a coil is conveyed by an uncoiling trolley part (1) and leaves the fourth reflected photoelectric switch, the timer of the PLC control center stops timing for a first time, when the light of a detector C (35) and a reflector C (36) of the third reflected photoelectric switch is blocked and has a signal, a second timer of the PLC control center stops timing, the time is delayed and the first reflected photoelectric switch detects the signal, the uncoiling trolley part (1) stops advancing, and the PLC control center automatically controls a lifting hydraulic cylinder (12) to descend to unload the first coil to a first reflected photoelectric switch of the uncoiling platform (21) through a bidirectional solenoid valve (391) and returns to an initial coil unloading position;
step two, stably aligning and unloading the coil of the second high-wire coil (6);
the second step comprises the following steps: the light of the detector A (31) and the reflector A (32) of the first photoelectric switch is shielded by a signal, the second photoelectric switch and the third photoelectric switch are not shielded by a signal, the coil stripping trolley part (1) can automatically place the second high-line coil (6) at the second position of the coil stripping platform (21), the stopping position of the coil stripping trolley part (1) is the distance from the fourth photoelectric switch to the top of the coil stripping platform (21) minus the length of the first high-line coil (6), when the end surface of the second high-line coil (6) is close to the first high-line coil (6), the coil stripping trolley part (1) stops advancing, descends to discharge the second high-line coil (6) onto the coil stripping platform (21), and returns to the initial coil stripping position;
step three, stably aligning and unloading the coil of the third high-wire coil (6);
the third step comprises: the light of the first reflection photoelectric switch and the light of the second reflection photoelectric switch are shielded to form signals, the third reflection photoelectric switch is not shielded to form no signals, the coil stripping trolley part (1) automatically places the third high-wire coil (6) at the third position of the coil stripping platform (21) and returns to the initial coil stripping position, and the coils of the three high-wire coils (6) are placed on the coil stripping platform (2) in an aligned mode without gaps.
2. The automatic length-measuring positioning and circulating automatic coil-discharging method for high-speed coil-discharging of claim 1, characterized in that the coil-discharging system comprises: the coil stripping trolley part (1) is arranged in a coil stripping station pit (5) and drives a high-speed wire coil (6) to lift and move back and forth;
the coil stripping rack (2) is arranged in a coil stripping station pit (5) and is far away from the coil stripping trolley part (1) to place the high-speed wire coil (6) for convenient hoisting;
the control part (3) is arranged at the side edge of the coil unloading station pit (5) and accurately controls the lifting and the back-and-forth movement of the coil unloading trolley part (1), and the control part (3) automatically controls the coil unloading trolley part (1) to sequentially place coils of three high-wire coils (6) on the coil unloading rack (2) in a gapless and aligned mode.
3. The automatic length-measuring positioning and circulating automatic coil-discharging method for high-speed coil-discharging according to claim 2, characterized in that the control part (3) comprises four groups of reflective photoelectric switches mounted on the top of the side edges of the coil-discharging station pit (5);
a detector A (31) and a reflector A (32) of a first reflective photoelectric switch are oppositely fixed on the side edge of the coil stripping rack (2) which is spaced from the inner wall of the coil stripping station pit (5);
the detector B (33) and the mirror B (34) of the second set of reflected photoelectric switches are oppositely fixed on the side which is spaced from the first set of reflected photoelectric switches;
the detector C (35) and the mirror C (36) of the third reflective photoelectric switch are fixed opposite on the side spaced from the second reflective photoelectric switch;
the detector D (37) and the mirror D (38) of the fourth reflective photoelectric switch are oppositely fixed on the side which is spaced from the third reflective photoelectric switch;
the signal output ends of the first reflection photoelectric switch, the second reflection photoelectric switch, the third reflection photoelectric switch and the fourth reflection photoelectric switch are connected with the signal input end of a PLC control center, and the signal output end of the PLC control center is electrically connected with the electrical control ends of the two-way electromagnetic valve (391) and the proportional electromagnetic valve (392).
4. The automatic length measuring, positioning and circulating automatic coil discharging method for high-speed wire coil discharging according to claim 3, wherein the coil discharging trolley part (1) comprises a bearing platform (11) capable of bearing the high-speed wire coil (6), a lifting hydraulic cylinder (12) fixed at the bottom of the bearing platform (11) and driving the bearing platform (11) to lift, a bottom platform (13) fixed at the bottom of the lifting hydraulic cylinder (12), a plurality of rollers (14) capable of being installed at the bottom of the bottom platform (13) in a rolling manner and driving the whole body to move back and forth, a hydraulic motor (15) of which the fixed part is fixedly installed on a rotating shaft of the bottom platform (13) and drives the rollers (14) to rotate, oil inlets and outlets of the lifting hydraulic cylinder (12) are correspondingly communicated with oil ports of a bidirectional electromagnetic valve (391), and oil of the hydraulic motor (15) is correspondingly communicated with oil ports of an inlet and outlet proportional electromagnetic valve (392).
5. The automatic length-measuring positioning and circulating automatic coil-discharging method for high-line coil-discharging according to claim 4, characterized in that the coil-discharging rack (2) comprises a coil-discharging platform (21) and a plurality of supporting bodies (22) which are distributed at intervals and support the coil-discharging platform (21).
6. The automatic length measuring, positioning and circulating automatic coil stripping method for high-wire coil stripping according to claim 5, characterized in that a fifth reflection photoelectric switch is mounted at the tail end of the coil stripping platform (21), a detector G (23) and a reflector G (24) of the fifth reflection photoelectric switch are oppositely fixed at the tail end of the coil stripping platform (21), and a signal output end of the fifth reflection photoelectric switch is connected with a signal input end of a PLC control center.
7. The automatic length measuring, positioning and circulating automatic coil discharging method for high-speed wire coil discharging according to claim 6, characterized by further comprising a C-shaped hook part (4) which is arranged on a P/F wire stand (7) to hoist the high-speed wire coil (6) at the tail end of the P/F wire and can detect the existence of the high-speed wire coil (6).
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| CN202110580235.2A CN113353735B (en) | 2021-05-26 | 2021-05-26 | Automatic length measuring and positioning and circulating automatic coil unloading method for high-speed wire coil unloading |
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