CN204368992U - A kind of plasterboard enters the autonomous cruise speed system of plate - Google Patents
A kind of plasterboard enters the autonomous cruise speed system of plate Download PDFInfo
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- CN204368992U CN204368992U CN201420702404.0U CN201420702404U CN204368992U CN 204368992 U CN204368992 U CN 204368992U CN 201420702404 U CN201420702404 U CN 201420702404U CN 204368992 U CN204368992 U CN 204368992U
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Abstract
The utility model discloses the autonomous cruise speed system that a kind of plasterboard enters plate, comprise cutting-off tool system, for shearing plasterboard; Roller-way manufacturing line, multiple motor, multiple frequency converter, for transporting the plasterboard after shearing; Described roller-way manufacturing line is divided into one group or multiple groups, and each organizes described roller-way by a described motor drag, and each described motor is by a described Frequency Converter Control; Described plasterboard is divided into one or more group, plasterboard grouping after shearing is transported, each is organized described roller-way and arranges low speed and high speed two kinds of running statees, the motor being dragged roller-way by Frequency Converter Control is realized, and adopts and is divided into groups by plasterboard, divided into groups by manufacturing line, the roller-way running velocity of different group is different, can electric energy be saved, reduce costs, enhance productivity.
Description
Technical field
Industrial control field of the present invention, enters the autonomous cruise speed system of plate in especially a kind of gypsum board production line.
Background technology
After plasterboard is sheared, dragged the other end being transported to manufacturing line by roller-way, roller-way comprises tens or up to a hundred, and by motor drag, the roller-way running velocity of whole roller-way manufacturing line is all the same, or is at a high speed, or is in low speed.When manufacturing line is in low-speed run state always, the inefficiency of whole manufacturing line; After a block gypsum plate is done shearing, manufacturing line is when high-speed cruising, and whole manufacturing line is all in fast state, has both wasted electric energy and can not meet technique needs.Therefore need a kind of can governing speed enter panel control system.
Utility model content
The technical problems to be solved in the utility model is to provide the autonomous cruise speed system that a kind of plasterboard enters plate, comprises cutting-off tool system, for shearing plasterboard, roller-way manufacturing line, multiple motor, multiple frequency converter, for transporting the plasterboard after shearing, described roller-way manufacturing line is divided into one group or multiple groups, and each organizes described roller-way by a described motor drag, and each described motor is by a described Frequency Converter Control, described plasterboard is divided into one or more group, plasterboard grouping after shearing is transported, each is organized described roller-way and arranges low speed and high speed two kinds of running statees, the motor being dragged roller-way by Frequency Converter Control is realized, when the plate tail of last block gypsum plate of one group of plasterboard enters one group of roller-way, the motor of this group of Frequency Converter Control of this group transfers high-speed cruising to by low speed, this group roller-way of this group driven by motor is changed to high-speed cruising by low speed rotation, when the plate tail of this group plasterboard leaves this group roller-way, this group motor of this group Frequency Converter Control is by transferring low cruise at a high speed, this group roller-way of this group electric machine control is by being switched to low cruise at a high speed.
Adopt and divided into groups by plasterboard, divided into groups by manufacturing line, the roller-way running velocity of different group is different, can save electric energy, reduce costs, enhance productivity.
Alternatively, described cutting-off tool system comprises counting machine; For group roller-way of first after cutting knife, described counting machine is used for:
The counting machine of described cutting-off tool system counts cut plasterboard, reset when counting and reaching plasterboard number N that one group of plasterboard comprises, enter another count cycle, and export electric signal, to the first frequency converter of first group of roller-way, first frequency converter is switched at a high speed by low speed, first group of roller-way thus become at a high speed from low speed.
Alternatively, described system also comprises one or more sensor and/or counting machine that manufacturing line is arranged; Described sensor and/or counting machine are arranged on the exit position of each group roller-way group; The exit position of each group roller-way arranges at least one sensor and/or counting machine; Describedly determine that the plate tail of this group plasterboard leaves this group roller-way, comprising:
After determining that the plate tail of last block gypsum plate of this group plasterboard enters this group roller-way, the sensor of the exit position of this group roller-way and/or the plasterboard of counting machine to process is utilized to detect, when the plate tail of plasterboard leaves, described sensor is used for pulse to mail to described counting machine, and described counting machine is used for counting the plasterboard detected; When the count value of described counting machine reaches N, determine that the plate tail of this group plasterboard leaves this group roller-way, count value resets by described counting machine, again counts, the mouth of unison counter, to the frequency converter output pulse of this group, notifies that the frequency converter of this group roller-way is by transferring low speed at a high speed.
Alternatively, described system also comprises one or more sensor and/or counting machine that manufacturing line is arranged; Described sensor and/or counting machine are arranged on the exit position of each group roller-way group; The exit position of each group roller-way arranges at least one sensor and/or counting machine; For the M group roller-way after cutting knife, M >=2, are closely connected between roller-way group, continuously directly enter next group roller-way every, plasterboard group from upper one group of roller-way;
When M-1 group roller-way determines that the plate tail of this group plasterboard leaves this M-1 group roller-way, when the counter counts of described M-1 group roller-way is full, the mouth of described counting machine exports pulse to the frequency converter of M group roller-way, and the frequency converter of M group roller-way is switched at a high speed by low speed.
This mode accurately by front and back teams and groups separately, can avoid the generation of random plate phenomenon, improves the stability at the enterprising plate of high-speed production lines, and avoid it to cause because production capacity promotes enter plate entanglement problem.
Accompanying drawing explanation
Fig. 1 is the autonomous cruise speed system connection diagram that a kind of embodiment plasterboard enters plate;
Fig. 2 is the automatic rate-determining steps figure that in a kind of embodiment, gypsum enters plate;
Fig. 3 is the connection diagram of cutting-off tool system and roller-way control system in a kind of embodiment;
Fig. 4 is the system simplified diagram of the application.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in detail.
It should be noted that, if do not conflicted, each feature in the utility model embodiment and embodiment can be combined with each other, all within protection domain of the present utility model.In addition, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Composition graphs 4, shown in system simplified diagram:
A kind of plasterboard enters panel control system, comprises cutting-off tool system, for shearing plasterboard, roller-way manufacturing line, multiple motor, multiple frequency converter, for transporting the plasterboard after shearing, described roller-way manufacturing line is divided into one group or multiple groups, and each organizes described roller-way by a described motor drag, and each described motor is by a described Frequency Converter Control, described plasterboard is divided into one or more group, plasterboard grouping after shearing is transported, each is organized described roller-way and arranges low speed and high speed two kinds of running statees, the motor being dragged roller-way by Frequency Converter Control is realized, when the plate tail of last block gypsum plate of one group of plasterboard enters one group of roller-way, the motor of this group of Frequency Converter Control of this group transfers high-speed cruising to by low speed, this group roller-way of this group driven by motor is changed to high-speed cruising by low speed rotation, when the plate tail of this group plasterboard leaves this group roller-way, this group motor of this group Frequency Converter Control is by transferring low cruise at a high speed, this group roller-way of this group electric machine control is by being switched to low cruise at a high speed.
Composition graphs 4, shown in system simplified diagram:
In Fig. 4, there is cutting-off tool system, organize roller-way more, multiple motor, multiple frequency converter; First group of roller-way is by the first motor drag, and the first motor is by the first Frequency Converter Control; N group roller-way is by N group motor drag, and N motor, by N Frequency Converter Control, eliminates middle roller-way, motor, the frequency converter of many groups in figure.After cutting-off tool system has sheared a plasterboard or one group of plasterboard, first single plasterboard or plasterboard group enter in first group of roller-way, then enter second group of roller-way successively, and the 3rd group of roller-way, until N group roller-way.
The principle that high low speed switches:
One is ensure that next group arriving forward is low speed, or after the plate tail of upper a group leaves, transfers low speed at once.Because upper one group is left, keep at a high speed, nonsensical for upper one group of plasterboard, so need horse back after upper one group of plate tail leaves to change low speed into, change the meaning of low speed into more importantly for next group plasterboard, before the wrench arriving of first block of plate of next group plasterboard, low cruise must be transferred to, otherwise, the wrench of first block of plate of next group plasterboard enters into the roller-way group that this not yet changes low speed into, first block of plate of next group plasterboard will high-speed motion, depart from next group plasterboard group, and may knock into the back with the plasterboard of upper a group, cause string plate phenomenon.
Two is after the plate tail of last block gypsum plate of one group of plasterboard enters into this group, this group roller-way just can be switched at a high speed, otherwise, when last block gypsum plate does not also enter into this group roller-way completely, reorganization roller-way is switched at a high speed by low speed, and the kinematic velocity of last block gypsum plate may be caused not as good as former block gypsum plate, and last block gypsum plate may skid, thus pull open the distance with a few block gypsum plate above, thus cause and lose plate phenomenon.
As shown in Figure 1, roller-way manufacturing line, comprise 1 row roller-way manufacturing line, manufacturing line is divided into each different group, each electric machine control one group.The control that plasterboard enters plate is not that single individuality controls, it and Main Line Speed, and roller-way control system, roller-way control system comprises roller-way, drags the motor of roller-way, the frequency converter of drive motor.And cutting-off tool system is closely related.
Be connected by the physical construction such as gear or hinge between roller-way with motor, the said equipment is variable frequency control, carries out frequency given, ensure the conformability of each equipment room speed by devicenet fieldbus.Cutting-off tool system is then synchronous with main line by length-testing wheel synchro.
It should be noted that a motor is by belt or hinge, can control tens or tens roller-ways, plasterboard operates on roller-way, and roller-way rotates, and plasterboard is dragged.Accompanying drawing is depicted as the motor schematic diagram controlling roller-way and rotate.
M1, M2, M3, M4, M5, M6 six motors, are called the first motor, the second motor, the 3rd motor, the 4th motor, the 5th motor, the 6th motor.
As represented in fig. 3:
First electric machine control first group roller-way, the first Frequency Converter Control first motor;
Second electric machine control second group roller-way, the second Frequency Converter Control second motor;
3rd electric machine control the 3rd group roller-way, the 3rd Frequency Converter Control the 3rd motor;
4th electric machine control the 4th group roller-way, the 4th Frequency Converter Control the 4th motor;
5th electric machine control the 5th group roller-way, the 5th Frequency Converter Control the 5th motor;
6th electric machine control the 6th group roller-way; 6th Frequency Converter Control the 6th motor;
Each group roller-way comprises tens or tens roller-ways,
Be connected by MACHINERY JOINT between motor with roller-way.Connect as by the mechanical transmission mechanism such as belt or gear, this does not repeat for prior art.
Also feed belt can be set between roller-way and roller-way, thus reduce friction or the wearing and tearing of roller-way and plasterboard.
Alternatively, described cutting-off tool system comprises counting machine; For group roller-way of first after cutting knife, describedly determine that the plate tail of last block gypsum plate of one group of plasterboard enters this group roller-way, comprising:
The counting machine of described cutting-off tool system counts cut plasterboard, when count reach plasterboard number N that one group of plasterboard comprises time, determine that the plate tail of last block gypsum plate of this group plasterboard enters this group roller-way.
The number of one group of plasterboard is such as 5,5 block gypsum plates is teams and groups, and how many block gypsum plates are teams and groups, and particular case is determined by the actual conditions of manufacturing line, comprise the length of manufacturing line, the length of plasterboard, etc.
The length of general plasterboard is generally 2.5 meters or 3 meters.
In actual production, along with main line starts, 6 motors of manufacturing line enter low speed fishplate bar state, and speed is consistent with Main Line Speed.After cutting knife length-testing wheel drops into, cutting knife starts action, shears according to the length of setting, and once, the plate sheared then runs on belt with the state of low speed fishplate bar every partial application counting,
When cutting knife counting machine arrives preset value, such as reach 5 times,
Successively cut by 5 block gypsum plates, take time as order, count first piece respectively, second piece, the 3rd piece, the 4th piece, the 5th piece;
When shearing counting and reaching 5 times, 5th fast plasterboard shearing is complete enters first group of roller-way, the counter counts of cutting-off tool system is to 5 and reset, enter another count cycle, and export electric signal, to the first frequency converter of first group of roller-way, the first frequency converter is switched at a high speed by low speed, first group of roller-way thus become at a high speed from low speed.5 block gypsum plates become high-speed cruising from low cruise on first group of roller-way.
Alternatively, described system also comprises one or more sensor and/or counting machine that manufacturing line is arranged; Described sensor and/or counting machine are arranged on the exit position of each group roller-way group; The exit position of each group roller-way arranges at least one sensor and/or counting machine; Describedly determine that the plate tail of this group plasterboard leaves this group roller-way, comprising:
After determining that the plate tail of last block gypsum plate of this group plasterboard enters this group roller-way, the sensor of the exit position of this group roller-way and/or the plasterboard of counting machine to process is utilized to detect, when the plate tail of plasterboard leaves, pulse is mail to described counting machine by described sensor, and described counting machine counts the plasterboard detected; When the count value of described counting machine reaches N, determine that the plate tail of this group plasterboard leaves this group roller-way, count value resets by described counting machine.
How above technical scheme determines that one group of plasterboard have left one group of roller-way if giving, the teams and groups of 5 block gypsum plate compositions, when the plate tail of last block gypsum plate leaves this group roller-way, the sensor or the photoelectric switch that are arranged on roller-way outlet can detect, through a plasterboard, sensor or photoelectric switch export a pulse to counting machine, through 5 blocks of plates, export the 5th pulse to counting machine; Counting machine pre-sets counting range, when counting reaches 5, and counter O reset; Again count, the mouth of unison counter exports pulse to the frequency converter of next group roller-way, and the frequency converter of next group roller-way is switched at a high speed by low speed; Or exporting pulse to the frequency converter of this group, notifying that the frequency converter of this group roller-way is by transferring low speed at a high speed.
Alternatively, described system also comprises one or more sensor and/or counting machine that manufacturing line is arranged, and for the M group roller-way after cutting knife, M >=2, describedly determine that the plate tail of last block gypsum plate of one group of plasterboard enters this group roller-way, comprising:
When M-1 group roller-way determines that the plate tail of this group plasterboard leaves this M-1 group roller-way, determine that the plate tail of last block gypsum plate of this group plasterboard enters M group roller-way.
That is, determine that one group of plasterboard enters one group of roller-way, employing be that sensor that upper one group of roller-way is arranged or counting machine detect, when the counter counts of upper a group is full, send electric signal to this group, notify that one group of plasterboard has entered this group roller-way completely.Certainly, this kind of embodiment, is closely connected between roller-way group, continuously directly enters next group roller-way every, plasterboard group from upper one group of roller-way.
In Fig. 1, CO1, CO2, CO3, CO4, CO5, CO6 are photoelectric switch, can be separately positioned on the outlet of each group roller-way, for detecting plasterboard.
In Fig. 3, the rolling counters forward of cutting-off tool system, after full 5 of meter, sends speed switching signal to six frequency converters simultaneously, 6 frequency converters simultaneously by low speed switch to high speed; In this kind of embodiment, the length of one group of plasterboard approximates the length of these 6 groups of roller-way manufacturing lines, so need to make its switch speed simultaneously to 6 groups of roller-way transmission speed handover informations simultaneously.
Certainly, if the length of one group of plasterboard is less than the length of one group of roller-way, also only wherein one group can send switching signal, such as directly issue first group of roller-way give a signal near cutting-off tool system, after the 5th plasterboard sheared by cutting knife, counter counts is full, and reset, send signal to the first frequency converter, the plate tail being just equivalent to the plasterboard of last block notifying first group of frequency converter, one group of plasterboard enters reorganization, this group can switch speed, is switched at a high speed by low speed.
In this control technology, speed based on Main Line Speed, cutting-off tool system mates this speed, according to the shearing curve set and sheared length circulation shear.Enter plate accelerator device and then have two speed states, namely low speed fishplate bar state and high speed send board status: low speed fishplate bar hourly velocity is mated with Main Line Speed, send speed during plate then by calculating at a high speed, the calculating of this speed must ensure that last group of plate has the sufficient time completing subsequent action, and departs from horizontal roller-way before next group plate enters horizontal roller-way.
In actual production, along with main line starts, 6 motors entering plate accelerator device enter low speed fishplate bar state, and speed is consistent with Main Line Speed.After cutting knife length-testing wheel drops into, cutting knife starts action, shear according to the length of setting, every partial application counting once, the plate sheared then runs on acceleration belt with the state of low speed fishplate bar, when shearing counting and reaching 5 times, cutting-off tool system provides assisted instruction, and reset counting, enter another count cycle, 6 motors enter and send board status at a high speed, 1#-4# high speed operation of motor, after time delay a period of time, recover low speed fishplate bar state successively, this time is adjustable, setting principle is low speed for ensureing that lower group plate wrench enters this belt forward, make that group plate plate tail is as far as possible many leaves this belt simultaneously.5# and 6# motor transfers low speed to after this group plate tail throws off its overlying photoelectric.6 motors enter low speed fishplate bar state, wait for that cutting knife meter enters next circulation time full.Motion flow as shown in Figure 2.
On the gypsum board production line of annual output 3000 ten thousand square meter, mode and 5#, 6# of 1#-4# motor high speed step-down speed are similar, are after plate tail throws off its overlying photoelectric and transfer low speed to.
The following detailed description of diagram of circuit 2:
After main line starts, enter plate accelerator device and start, 1#-6# accelerates belt low cruise; Accelerate belt, also can think to drag the motor of roller-way, the first motor to the 6th motor low cruise, and enters plate accelerator device and comprises each roller-way group, drags each motor of roller-way group, drives each frequency converter of each motor;
Concrete is the first roller-way group, the first motor, the first frequency converter;
Second roller-way group, the second motor, the second frequency converter;
3rd roller-way group, the 3rd motor, the 3rd frequency converter;
4th roller-way group, the 4th motor, the 4th frequency converter;
5th roller-way group, the 5th motor, the 5th frequency converter;
6th roller-way group, the 6th motor, the 6th frequency converter;
When the counting machine of cutting-off tool system reaches preset value, such as preset value is 5, cut by 5 block gypsum plates, counter O reset, exports belt assisted instruction, namely exports the speed switching electric signal being switched to high speed by low speed to 6 frequency converters.
If counting machine does not reach preset value, illustrate that one group of plasterboard does not also cut, then 6 belts, in other words six motors still low-speed running, till waiting until that last counter counts is full always.
1#-6# accelerates belt high-speed cruising, that is, and 6 frequency converter high-speed operations,
1#-4# belt high-speed cruising, after running to certain hour, transfers low cruise to, if do not reach the default time, continues the state keeping high-speed cruising.Certainly, 1-4 belt, by transferring low speed at a high speed, also can adopt sensor to detect the method for plasterboard.
And 5#-6# belt high-speed cruising switches to the mode of low cruise to be whether the plate tail of plasterboard has departed from photoelectric switch, if departed from photoelectric switch, then transfer low cruise to, otherwise continued to keep high-speed cruising state.
In accompanying drawing, 1-4 belt is timing method by what transfer at a high speed that low speed adopts to, because frequency converter of each group can parameters, comprising time of run at a high speed, or the time of low cruise, output frequency of high band or low-frequency range etc. also can be set.
Time of high-speed cruising equals the length of a roller-way group and the length sum of the gypsum teams and groups horizontal linear velocity divided by plasterboard high-speed cruising.The length sum of the horizontal linear velocity of the plasterboard high-speed cruising length and gypsum teams and groups that equal a roller-way group is except the time run at high speed in other words, the application does not do concrete restriction, can repeatedly debug in engineering practice, repeatedly verify, select speed or the time of one group of the best.The setting principle of its speed or time is the distance ensureing to pull open adjacent teams and groups, ensures that this group roller-way as much as possiblely leaves in upper teams and groups, the wrench of the first block gypsum plate of next teams and groups does not also arrive this group roller-way.Avoid the string plate problem of adjacent teams and groups.
" belt " described above also can refer to the motor driving roller-way.
The control setup of cutting-off tool system can also pass through the upper computer of DeviceNET bus and centralized control room, or make supervisory control computer carry out communication, real-time condition is reported to the upper computer of Central Control Room, Central Control Room also can arrange read-out, or touch-screen, carries out communication by bus DeviceNET and upper computer.
Produce per year on the gypsum board production line of 5,000 ten thousand square meters in Huainan, along with the raising of line speed, the control accuracy cutting off the operation of laggard plate improves enhancing with stability also corresponding having carried out.
Strengthened by the improvement of plasterboard being entered to plate control technology, decrease equipment component and drop into, saved cost.Along with time regulatable adds PC control interface to, add comfort feature and the alerting ability of equipment debugging, and this mode accurately by front and back teams and groups separately, can avoid the generation of random plate phenomenon, improves the stability at the enterprising plate of high-speed production lines.Meanwhile, this mode also can be applied on 3,000 ten thousand square meter manufacturing lines, can greatly alleviate its because of production capacity promote cause enter plate entanglement problem.
Photoelectric switch, is also called Poul Dorset Sheep and master cock.Utilize material covering light beam, the effects such as absorption or reflection, detect the position, shape, mark, symbol etc. of object.
Multiple frequency converter and multiple photoelectric switch or sensor or counting machine can hang in bus, and bus can adopt devicenet fieldbus, carry out frequency given, ensure the conformability of each equipment room speed by devicenet fieldbus.
This mode also can be used on the manufacturing line producing 5000 ten thousand square meters per year, or is applied to the manufacturing line of other scales.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection domain that all should belong to claim of the present utility model.
Claims (4)
1. plasterboard enters an autonomous cruise speed system for plate, it is characterized in that, comprises cutting-off tool system, for shearing plasterboard, roller-way manufacturing line, multiple motor, multiple frequency converter, for transporting the plasterboard after shearing, described roller-way manufacturing line is divided into one group or multiple groups, and each organizes described roller-way by a described motor drag, and each described motor is by a described Frequency Converter Control, described plasterboard is divided into one or more group, plasterboard grouping after shearing is transported, each is organized described roller-way and arranges low speed and high speed two kinds of running statees, the motor being dragged roller-way by Frequency Converter Control is realized, when the plate tail of last block gypsum plate of one group of plasterboard enters one group of roller-way, the motor of this group of Frequency Converter Control of this group transfers high-speed cruising to by low speed, this group roller-way of this group driven by motor is changed to high-speed cruising by low speed rotation, when the plate tail of this group plasterboard leaves this group roller-way, this group motor of this group Frequency Converter Control is by transferring low cruise at a high speed, this group roller-way of this group electric machine control is by being switched to low cruise at a high speed.
2. autonomous cruise speed system as claimed in claim 1, it is characterized in that, described cutting-off tool system comprises counting machine; For group roller-way of first after cutting knife, described counting machine is used for:
Cut plasterboard is counted, reset when counting and reaching plasterboard number N that one group of plasterboard comprises, enter another count cycle, and export electric signal, to the first frequency converter of first group of roller-way, first frequency converter is switched at a high speed by low speed, first group of roller-way thus become at a high speed from low speed.
3. autonomous cruise speed system as claimed in claim 1, it is characterized in that, described system also comprises one or more sensor and/or counting machine that manufacturing line is arranged; Described sensor and/or counting machine are arranged on the exit position of each group roller-way group; The exit position of each group roller-way arranges at least one sensor and/or counting machine;
After determining that the plate tail of last block gypsum plate of this group plasterboard enters this group roller-way, the sensor of the exit position of this group roller-way and/or the plasterboard of counting machine to process is utilized to detect, when the plate tail of plasterboard leaves, described sensor is used for pulse to mail to described counting machine, and described counting machine is used for counting the plasterboard detected; When the count value of described counting machine reaches N, count value resets by described counting machine, again counts, and the mouth of unison counter, to the frequency converter output pulse of this group, notifies that the frequency converter of this group roller-way is by transferring low speed at a high speed.
4. autonomous cruise speed system as claimed in claim 1, it is characterized in that, described system also comprises one or more sensor and/or counting machine that manufacturing line is arranged; Described sensor and/or counting machine are arranged on the exit position of each group roller-way group; The exit position of each group roller-way arranges at least one sensor and/or counting machine;
For the M group roller-way after cutting knife, M >=2, are closely connected between roller-way group, continuously directly enter next group roller-way every, plasterboard group from upper one group of roller-way;
When M-1 group roller-way determines that the plate tail of this group plasterboard leaves this M-1 group roller-way, when the counter counts of described M-1 group roller-way is full, the mouth of described counting machine exports pulse to the frequency converter of M group roller-way, and the frequency converter of M group roller-way is switched at a high speed by low speed.
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| CN201420702404.0U CN204368992U (en) | 2014-11-20 | 2014-11-20 | A kind of plasterboard enters the autonomous cruise speed system of plate |
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| CN201420702404.0U CN204368992U (en) | 2014-11-20 | 2014-11-20 | A kind of plasterboard enters the autonomous cruise speed system of plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332795A (en) * | 2019-06-25 | 2019-10-15 | 北新集团建材股份有限公司 | Three control timing of one kind goes out panel control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332795A (en) * | 2019-06-25 | 2019-10-15 | 北新集团建材股份有限公司 | Three control timing of one kind goes out panel control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |