CN112895081A - Intelligent box girder mold and method for solving mold clamping problem of intelligent box girder mold - Google Patents
Intelligent box girder mold and method for solving mold clamping problem of intelligent box girder mold Download PDFInfo
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- CN112895081A CN112895081A CN202011532342.XA CN202011532342A CN112895081A CN 112895081 A CN112895081 A CN 112895081A CN 202011532342 A CN202011532342 A CN 202011532342A CN 112895081 A CN112895081 A CN 112895081A
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- oil cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0055—Mould pallets; Mould panels
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of box girder molds and provides an intelligent box girder mold which comprises a vertical jacking oil cylinder, a horizontal opening and closing oil cylinder, a power system, a vertical displacement sensor, a horizontal displacement sensor, a vertical displacement encoder, a horizontal displacement encoder, a display panel and a control system. The method comprises the steps of monitoring the extending amounts of cylinder shafts of a vertical jacking cylinder and a horizontal opening and closing cylinder in real time through a vertical displacement sensor and a horizontal displacement sensor, converting signals monitored by the sensors into electric signals by utilizing corresponding encoders, transmitting the electric signals to a control system for data processing, and adjusting corresponding cylinder actions by the control system through a power system to separate from a mold clamping if the extending amounts of the cylinders are abnormal.
Description
Technical Field
The invention relates to the technical field of box girder molds, in particular to an intelligent box girder mold and a method for solving the mold clamping problem of the intelligent box girder mold.
Background
If figure 1, figure 2 shows that the mould of current certain model case roof beam manufacturing usefulness, including side form 1, the rack 14, vertical jacking hydro-cylinder 2 and level hydro-cylinder 3 that opens and shuts, because this kind of mould size is long, heavy in weight, consequently need use the hydro-cylinder that opens and shuts of multiunit vertical jacking hydro-cylinder and level, however in the course of the work, no matter be compound die or die sinking, vertical jacking hydro-cylinder action need keep the synchronization action, equally, the hydro-cylinder that opens and shuts of level also needs the synchronization action, just can avoid appearing the card mould, however current mould is in the course of the work, the oil pressure is unstable does not lack to appear, lead to corresponding hydro-cylinder work asynchronous condition to take place. Therefore, how to solve the above problems becomes a focus of research by those skilled in the art.
Disclosure of Invention
The invention aims to provide an intelligent box girder mold and a method for solving the mold clamping problem of the intelligent box girder mold, and aims to solve the problem of the prior art.
The embodiment of the invention is realized by the following technical scheme:
an intelligent box girder mold, comprising:
the device comprises side templates, a rack, a vertical jacking oil cylinder for adjusting the height of the side templates, a horizontal opening and closing oil cylinder for adjusting the horizontal displacement of the side templates and a power system for providing hydraulic power for the vertical jacking oil cylinder and the horizontal opening and closing oil cylinder;
further comprising:
the vertical displacement sensor is arranged between the vertical jacking oil cylinder and the side template and used for monitoring the elongation of the oil cylinder shaft of the vertical jacking oil cylinder in real time;
the horizontal displacement sensor is arranged between the horizontal opening and closing oil cylinder and the side template and is used for monitoring the extension of an oil cylinder shaft of the horizontal opening and closing oil cylinder in real time;
the vertical displacement encoder is connected with the vertical displacement sensor;
the horizontal displacement encoder is connected with the horizontal displacement sensor;
and the control system is connected with the vertical displacement encoder, the horizontal displacement encoder and the power system and is used for receiving and analyzing electric signals from the vertical displacement encoder and the horizontal displacement encoder and controlling the power system to adjust the hydraulic power of the vertical jacking oil cylinder and the horizontal opening and closing oil cylinder.
Further, intelligence case roof beam mould still includes display panel, and display panel is connected with control system for show the operating pressure of vertical jacking cylinder, horizontal open and shut hydro-cylinder and the displacement volume of horizontal displacement sensor and vertical displacement sensor.
Furthermore, the vertical displacement sensor/the horizontal displacement sensor is arranged at the end part of the vertical jacking oil cylinder/the horizontal opening and closing oil cylinder through a first fixing piece, and the probe of the vertical displacement sensor/the horizontal displacement sensor is fixed at the end of the oil cylinder shaft of the vertical displacement sensor/the horizontal displacement sensor through a second fixing piece.
Further, first mounting includes the first ring hoop body, the first ring hoop body is provided with first portion of opening and shutting, bolted connection is passed through in first portion of opening and shutting, and one side that first portion of opening and shutting was kept away from to the first ring hoop body is provided with the mounting panel, be provided with on the mounting panel vertical displacement sensor and vertical displacement encoder or horizontal displacement sensor and horizontal displacement encoder.
Further, the second fixing part comprises a second circular hoop body, the second circular hoop body is provided with a second opening and closing portion, the second opening and closing portion is connected through a bolt, a fixing plate is arranged at one end, far away from the second opening and closing portion, of the second circular hoop body, a probe mounting hole is formed in the fixing plate, a rack perpendicular to the probe mounting hole is arranged on one side of the probe mounting hole in a sliding mode, a gear is meshed on the rack and sleeved on a rotating rod, and the rotating rod is arranged on the mounting plate in a rotating mode.
The method for solving the mold clamping problem of the intelligent box girder mold is characterized by comprising the following steps of:
6.1) the control system acquires data signals acquired by a vertical displacement sensor and a horizontal displacement sensor;
6.2) the control system analyzes the acquired data signals and respectively judges whether the cylinder shaft extensions of all the vertical jacking cylinders are consistent or not and whether the cylinder shaft extensions of all the horizontal opening and closing cylinders are consistent or not;
and 6.3) the control system gives a signal to the power system according to an analysis result, if the elongation of the oil cylinder shaft is abnormal, and adjusts the corresponding vertical jacking oil cylinder/horizontal opening and closing oil cylinder to act.
Further, in the step 6.1), data signals acquired by the vertical displacement sensor and the horizontal displacement sensor are processed into electric signals by the vertical displacement encoder and the horizontal displacement encoder and then transmitted to the control system.
Further, in step 6.3), the method for adjusting the corresponding action of the vertical jacking oil cylinder/the horizontal opening and closing oil cylinder by the power system comprises the following steps: the oil pressure of the vertical jacking oil cylinder/the horizontal opening and closing oil cylinder in an abnormal state is increased or reduced independently.
Further, in step 6.3), the method for adjusting the corresponding action of the vertical jacking oil cylinder/the horizontal opening and closing oil cylinder by the power system comprises the following steps: the oil cylinders on two sides of the vertical jacking oil cylinder/the horizontal opening and closing oil cylinder in an abnormal state are adjusted to stretch and retract in a reciprocating mode.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
the invention monitors the extending amount of the cylinder shaft of the vertical jacking cylinder and the horizontal opening and closing cylinder in real time through the vertical displacement sensor and the horizontal displacement sensor, converts the signal monitored by the sensors into an electric signal by using corresponding encoders, and transmits the electric signal to the control system for data processing, and if the extending amount of the cylinder is abnormal, the control system adjusts the corresponding cylinder action through the power system to separate from the clamping die.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a front view of a box girder mold of a certain type;
FIG. 2 is a side view of a prior art box girder mold of a certain type;
FIG. 3 is a front view of a box girder mold of a certain type according to embodiment 1 of the present invention;
FIG. 4 is a schematic view of a first fastener element;
fig. 5 is a schematic structural view of the second fixing member.
Icon: the system comprises a side template 1, a vertical jacking oil cylinder 2, a horizontal opening and closing oil cylinder 3, a power system 4, a vertical displacement sensor 5, a horizontal displacement sensor 6, a vertical displacement encoder 7, a horizontal displacement encoder 8, a display panel 9, a control system 10, a first fixing piece 11, a first hoop body 1101, a first mounting plate 1102, a second fixing piece 12, a second hoop body 1201, a second hoop body 1202, a fixing plate 1203 rack 1204, a gear, a probe 13 and a rack 14.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 3, the embodiment provides an intelligent box girder mold, which includes a side mold plate 1, a vertical jacking cylinder 2, a horizontal opening and closing cylinder 3, a power system 4, a vertical displacement sensor 5, a horizontal displacement sensor 6, a vertical displacement encoder 7, a horizontal displacement encoder 8, a display panel 9, a control system 10 and a rack 14. The side formworks 1 are symmetrically arranged on two sides of the rack 14, and the vertical jacking oil cylinders 2 are fixedly connected with the side formworks 1 and used for adjusting the heights of the side formworks 1; the horizontal opening and closing oil cylinder 3 is fixedly connected with the side template 1 and used for adjusting the horizontal displacement of the side template 1; the power system 4 is respectively connected with the vertical jacking oil cylinder 2 and the horizontal opening and closing oil cylinder 3 through pipelines and is used for providing hydraulic power for the vertical jacking oil cylinder 2 and the horizontal opening and closing oil cylinder 3; the vertical displacement sensor 5 is arranged at the end head part of the vertical jacking oil cylinder 2 through a first fixing part 11, and a probe 13 of the vertical displacement sensor 5 is fixed at the end head of an oil cylinder shaft of the vertical displacement sensor 5 through a second fixing part 12 and is used for monitoring the oil cylinder shaft elongation of the vertical jacking oil cylinder 2 in real time; the horizontal displacement sensor 6 is arranged at the end head part of the horizontal opening and closing oil cylinder 3 through a first fixing piece 11, and a probe 13 of the horizontal displacement sensor 6 is fixed at the end head of an oil cylinder shaft of the horizontal displacement sensor 6 through a second fixing piece 12 and is used for monitoring the extension amount of the oil cylinder shaft of the horizontal opening and closing oil cylinder 3 in real time; the vertical displacement encoder 7 is in communication connection with the vertical displacement sensor 5, the horizontal displacement encoder 8 is in communication connection with the horizontal displacement sensor 6, and the vertical displacement encoder 7/the horizontal displacement encoder 8 are used for converting sensing signals into electric signals; the display panel 9 is connected with the control system 10 and is used for displaying the working pressure of the vertical jacking oil cylinder 2 and the horizontal opening and closing oil cylinder 3 and the displacement of the horizontal displacement sensor 6 and the vertical displacement sensor; the control system 10 is connected with the vertical displacement encoder 7, the horizontal displacement encoder 8 and the power system 4, and is used for receiving and analyzing electric signals from the vertical displacement encoder 7 and the horizontal displacement encoder 8, and controlling the power system 4 to adjust hydraulic power of the vertical jacking oil cylinder 2 and the horizontal opening and closing oil cylinder 3.
The embodiment also provides a method for solving the mold clamping problem of the intelligent box girder mold, which comprises the following steps:
1) the length variation of the oil cylinder shaft of the corresponding oil cylinder during mold opening or mold closing is respectively monitored by a vertical displacement sensor 5 and a horizontal displacement sensor 6, the sensors detect signals and then send the signals to a vertical displacement encoder 7/a horizontal displacement encoder 8 corresponding to the sensors,
2) the vertical displacement encoder 7/the horizontal displacement encoder 8 receive the signals, convert the signals into electric signals and send the electric signals to a control system;
3) after the control system receives the signals, the control system separately uses all the vertical jacking oil cylinders 2 as a whole to analyze whether the elongation of each vertical jacking oil cylinder 2 is consistent with the elongation which should be applied to the oil cylinder under the normal condition under the current state, and similarly, the control system separately uses all the horizontal opening and closing oil cylinders 3 as a whole to analyze whether the elongation of each horizontal opening and closing oil cylinder 3 is consistent with the elongation which should be applied to the oil cylinder under the normal condition under the current state. If there is the elongation of vertical jacking cylinder 2/horizontal open and close hydro-cylinder 3 unusual, this shows that there is the card mould phenomenon here, the corresponding oil pressure that changes this unusual hydro-cylinder to change the elongation of its hydro-cylinder axle, make the final elongation of each vertical jacking cylinder 2/horizontal open and close hydro-cylinder 3 equal, for example: if the elongation of a certain vertical jacking oil cylinder 2/horizontal opening and closing oil cylinder 3 is obviously longer, the oil pressure of the oil cylinder is reduced, so that the elongation of the oil cylinder is reduced; similarly, if the elongation of a certain vertical jacking cylinder 2/horizontal opening and closing cylinder 3 is obviously shorter, the oil pressure of the cylinder is increased, so that the elongation of the cylinder is increased, and finally, when the elongations of all the vertical jacking cylinders 2 or all the horizontal opening and closing cylinders 3 are consistent again, the oil temperature is maintained to be stable, so that the problem of mold clamping is solved; in addition, the clamping of the die can be avoided by changing the vertical jacking oil cylinders 2 or the oil cylinders on two sides of all the horizontal opening and closing oil cylinders 3 in an abnormal state, for example, when the elongation of a certain oil cylinder is abnormal, the oil pressures of the oil cylinders on two sides are repeatedly adjusted to be high-pressure and low-pressure, so that the oil cylinders on two sides are repeatedly extended and shortened, the die is separated from the clamping by vibration back and forth, and finally the oil pressures of the jacking oil cylinders 2/the horizontal opening and closing oil cylinders 3 are adjusted to be consistent, so that the elongation of the vertical jacking oil cylinders 2/the horizontal opening and closing oil cylinders 3 is.
Further, as shown in fig. 4 and 5, the first fixing member 11 includes a first circular hoop body 1101, the first circular hoop body 1101 is provided with a first opening and closing portion, the first opening and closing portion is connected through a bolt, an end of the oil cylinder is embraced by the first circular hoop body 1101 and is locked through the bolt, one side of the first circular hoop body 1101, which is far away from the first opening and closing portion, is provided with a mounting plate 1102, and the mounting plate 1102 is provided with the vertical displacement sensor 5 and the vertical displacement encoder 7 or the horizontal displacement sensor 6 and the horizontal displacement encoder 8.
The second fixing member 12 includes a second circular hoop body 1201, the second circular hoop body 1201 is provided with a second opening and closing portion, the second opening and closing portion is connected through a bolt, the second circular hoop body 1201 embraces the end of the cylinder shaft and is locked through the bolt, a fixing plate 1202 is arranged at one end, away from the second opening and closing portion, of the second circular hoop body 1201, a probe mounting hole is formed in the surface, facing the side of the sensor, of the fixing plate 1202, a probe 13 of the sensor is mounted in the probe mounting hole, a rack 1203 perpendicular to the probe 13 mounting hole is slidably arranged in the fixing plate 1202, a gear 1204 is meshed with the rack 1203, the gear 1204 is sleeved on a rotating rod, the rotating rod is rotatably arranged on the mounting plate 1102, two ends of the rotating rod are exposed out of the fixing plate 1202, a rotating handle is arranged at one end of the rotating rod, and the other end of the rotating rod is fixed through a.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An intelligent box girder mold, comprising:
the device comprises side formworks (1), a rack (14), a vertical jacking oil cylinder (2) for adjusting the height of the side formworks (1), a horizontal opening and closing oil cylinder (3) for adjusting the horizontal displacement of the side formworks (1), and a power system (4) for providing hydraulic power for the vertical jacking oil cylinder (2) and the horizontal opening and closing oil cylinder (3);
it is characterized by also comprising:
the vertical displacement sensor (5) is arranged between the vertical jacking oil cylinder (2) and the side template (1) and is used for monitoring the oil cylinder shaft elongation of the vertical jacking oil cylinder (2) in real time;
the horizontal displacement sensor (6) is arranged between the horizontal opening and closing oil cylinder (3) and the side template (1) and is used for monitoring the extension amount of an oil cylinder shaft of the horizontal opening and closing oil cylinder (3) in real time;
a vertical displacement encoder (7) connected to the vertical displacement sensor (5);
a horizontal displacement encoder (8) connected to the horizontal displacement sensor (6);
and the control system (10) is connected with the vertical displacement encoder (7), the horizontal displacement encoder (8) and the power system (4) and is used for receiving and analyzing electric signals from the vertical displacement encoder (7) and the horizontal displacement encoder (8) and controlling the power system (4) to adjust the hydraulic power of the vertical jacking oil cylinder (2) and the horizontal opening and closing oil cylinder (3).
2. The intelligent box girder mold according to claim 1, wherein: the hydraulic lifting device is characterized by further comprising a display panel (9), wherein the display panel (9) is connected with a control system (10) and used for displaying the working pressure of the vertical jacking oil cylinder (2) and the horizontal opening and closing oil cylinder (3) and the displacement of the horizontal displacement sensor (6) and the vertical displacement sensor.
3. The intelligent box girder mold according to claim 1, wherein: the vertical displacement sensor (5)/the horizontal displacement sensor (6) is arranged at the end part of the vertical jacking oil cylinder (2)/the horizontal opening and closing oil cylinder (3) through a first fixing piece (11), and a probe (13) of the vertical displacement sensor (5)/the horizontal displacement sensor (6) is fixed at the end of an oil cylinder shaft of the vertical displacement sensor (5)/the horizontal displacement sensor (6) through a second fixing piece (12).
4. The intelligent box girder mold according to claim 3, wherein: first mounting (11) are including first ring hoop body (1101), first ring hoop body (1101) are provided with first portion of opening and shutting, bolted connection is passed through in first portion of opening and shutting, and one side that first portion of opening and shutting was kept away from in first ring hoop body (1101) is provided with mounting panel (1102), be provided with on mounting panel (1102) vertical displacement sensor (5) and vertical displacement encoder (7) or horizontal displacement sensor (6) and horizontal displacement encoder (8).
5. The intelligent box girder mold according to claim 3, wherein: the second fixing piece (12) comprises a second circular hoop body (1201), the second circular hoop body (1201) is provided with a second opening and closing portion, the second opening and closing portion is connected through a bolt, a fixing plate (1202) is arranged at one end, away from the second opening and closing portion, of the second circular hoop body (1201), a probe mounting hole is formed in the fixing plate (1202), a rack (1203) perpendicular to the probe mounting hole is arranged on one side of the probe mounting hole in a sliding mode, a gear (1204) is meshed on the rack (1203), the gear (1204) is sleeved on a rotating rod, and the rotating rod is rotatably arranged on the mounting plate (1102).
6. The method for solving the mold clamping problem of the intelligent box girder mold as claimed in any one of claims 1 to 5, is characterized by comprising the following steps:
6.1) the control system (10) acquires data signals collected by the vertical displacement sensor (5) and the horizontal displacement sensor (6);
6.2) the control system (10) analyzes the acquired data signals and respectively judges whether the cylinder shaft extensions of all the vertical jacking cylinders (2) are consistent or not and whether the cylinder shaft extensions of all the horizontal opening and closing cylinders (3) are consistent or not;
6.3) the control system (10) gives a signal to the power system (4) according to an analysis result, if the cylinder shaft elongation of the vertical jacking cylinder (2)/the horizontal opening and closing cylinder (3) is abnormal, and adjusts the corresponding vertical jacking cylinder (2)/the horizontal opening and closing cylinder (3) to act.
7. The method for solving the mold clamping problem of the intelligent box girder mold according to claim 6, is characterized in that: in the step 6.1), data signals acquired by the vertical displacement sensor (5) and the horizontal displacement sensor (6) are processed into electric signals by the vertical displacement encoder (7) and the horizontal displacement encoder (8) and then transmitted to the control system (10).
8. The method for solving the mold clamping problem of the intelligent box girder mold according to claim 6, is characterized in that: in the step 6.3), the method for adjusting the corresponding actions of the vertical jacking oil cylinder (2)/the horizontal opening and closing oil cylinder (3) by the power system (4) is as follows: the oil pressure of the vertical jacking oil cylinder (2)/the horizontal opening and closing oil cylinder (3) in an abnormal state is independently increased or reduced.
9. The method for solving the mold clamping problem of the intelligent box girder mold according to claim 6, is characterized in that: in the step 6.3), the method for adjusting the corresponding actions of the vertical jacking oil cylinder (2)/the horizontal opening and closing oil cylinder (3) by the power system (4) is as follows: the oil cylinders on the two sides of the vertical jacking oil cylinder (2)/the horizontal opening and closing oil cylinder (3) in an abnormal state are adjusted to extend and retract in a reciprocating manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011532342.XA CN112895081A (en) | 2020-12-22 | 2020-12-22 | Intelligent box girder mold and method for solving mold clamping problem of intelligent box girder mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011532342.XA CN112895081A (en) | 2020-12-22 | 2020-12-22 | Intelligent box girder mold and method for solving mold clamping problem of intelligent box girder mold |
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| SU1252179A1 (en) * | 1984-12-10 | 1986-08-23 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Core for shaping three-dimensional slabs |
| CN200939656Y (en) * | 2006-08-16 | 2007-08-29 | 河南玛纳建筑模板有限公司 | 32m case beam integral die plate for railway passengers transportation line |
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| CN111805709A (en) * | 2020-07-20 | 2020-10-23 | 中铁大桥局第九工程有限公司 | Automatic change box girder template of control |
| CN211785637U (en) * | 2019-11-27 | 2020-10-27 | 湖南诚创鑫科技有限公司 | Electronic components test fixture that smelts always |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1252179A1 (en) * | 1984-12-10 | 1986-08-23 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Core for shaping three-dimensional slabs |
| CN200939656Y (en) * | 2006-08-16 | 2007-08-29 | 河南玛纳建筑模板有限公司 | 32m case beam integral die plate for railway passengers transportation line |
| CN208133236U (en) * | 2018-03-19 | 2018-11-23 | 中建三局基础设施建设投资有限公司 | A kind of precast box beam hydraulic external mold synchronous control system |
| CN208263087U (en) * | 2018-05-30 | 2018-12-21 | 四川东泉机械设备制造有限公司 | A kind of hydraulic T girder steel formwork intelligence control system |
| CN211785637U (en) * | 2019-11-27 | 2020-10-27 | 湖南诚创鑫科技有限公司 | Electronic components test fixture that smelts always |
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Application publication date: 20210604 |