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CN103538139A - Concrete precast element production system and vibration device thereof - Google Patents

Concrete precast element production system and vibration device thereof Download PDF

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Publication number
CN103538139A
CN103538139A CN201310460410.XA CN201310460410A CN103538139A CN 103538139 A CN103538139 A CN 103538139A CN 201310460410 A CN201310460410 A CN 201310460410A CN 103538139 A CN103538139 A CN 103538139A
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China
Prior art keywords
shake table
hold assembly
platform
lifting
driving
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Granted
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CN201310460410.XA
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Chinese (zh)
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CN103538139B (en
Inventor
蔡宇
宋永红
邱云阳
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Hunan Sany Kuaierju Housing Industry Co Ltd
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Sany Automobile Manufacturing Co Ltd
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Publication of CN103538139B publication Critical patent/CN103538139B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/08Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/087Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

The invention discloses a concrete precast element production system and a concrete vibration device. The concrete vibration device comprises a supporting table, a vibrating table, a vibrating mechanism and multiple clamping mechanisms. The vibrating table is erected on the supporting table, the vibrating mechanism is used for driving the vibrating table to vibrate, each clamping mechanism comprises a driving mechanism and a clamping component, the clamping components are arranged on the vibrating table in a sliding mode, the driving mechanisms are used for driving the clamping components to slide, each clamping component is provided with a lifting surface, the end, away from the vibrating table, of each clamping component is provided with a clamping structure, and one side, close to each end, of the corresponding lifting surface is higher than the other side. When the concrete vibrating device clamps a die table, the die table can be transferred from driving idler wheels to the vibrating table through independent motion of the clamping components to be fixed; by the adoption of the concrete precast element vibration device, the structure of the concrete precast element production system can be simplified, and the concrete precast element production system can be conveniently manufactured, installed and maintained.

Description

Precast concrete production system and vibrating device thereof
Technical field
The present invention relates to precast concrete production technology, be specifically related to a kind of precast concrete production system and vibrating device thereof.
Background technology
Precast concrete has been widely used in construction, and they are to provide a great convenience reduction construction cost, shortening construction period.At present, most precast concretes are produced by automatic production line, on automatic production line, utilize special production system can produce efficiently various precast concretes.
Conventionally precast concrete production system comprises mould platform, driving rolls, material distributing machine and vibrating device, driving rolls straight line is in facility floor, mould platform is arranged on the arranged direction along driving rolls on driving rolls and under the driving of driving rolls and moves, material distributing machine is erected at factory building top conventionally, and vibrating device setting on the ground; Building station, material distributing machine is by concreting progressive die platform, at vibration station, mould platform is fixed on the shake table of vibrating device, the vibration of shake table band dynamic model platform, the concrete of Mo Tainei is filled full internal voids under effect of vibration, thereby makes precast concrete more closely knit.
Before shaking concrete prefabricated component, precast concrete need to be moved on shake table from driving rolls, two kinds of more common modes that mould platform is transferred to shake table from driving rolls are as follows:
1) mould platform moves to after vibration station, and driving rolls declines, and mould platform is drop on shake table, and depart from driving rolls, and the clamp mechanism on vibrating device is fixed on mould platform on shake table.
2) mould platform moves to after vibration station, and shake table rises until by mould platform jack-up, and departs from driving rolls, then by the clamp mechanism on vibrating device, mould platform is fixed on shake table.
Above-mentioned two kinds of modes all need elevating mechanism and clamp mechanism are set separately, have increased the complex structure degree of precast concrete production system, are unfavorable for installation and maintenance, have also increased the manufacturing cost of precast concrete production system.
Summary of the invention
In view of this, the present invention proposes a kind of precast concrete vibrating device, utilizes this precast concrete vibrating device, can simplify the structure of precast concrete production system, for manufacture, the installation and maintenance of precast concrete production system facilitates.
On the one hand, the present invention proposes a kind of vibratory concrete device, comprise bracing frame, shake table, vibrating mechanism and a plurality of clamp mechanism, described shake table is set up on support frame as described above; Described vibrating mechanism is connected with shake table, for driving described shake table vibration; Described clamp mechanism comprises driving mechanism and hold assembly, and described hold assembly slides and is arranged on described shake table, and described driving mechanism is used for driving described hold assembly to slide; And be provided with lifting face on described hold assembly, described hold assembly is provided with card holding structure away from the end at shake table center, described lifting face near a side of described end higher than opposite side.
Further, described hold assembly is provided with hook body and laterally extending section, and described card holding structure is the bayonet socket of being located on described hook body, and described lifting face is located on the end face of described laterally extending section.
Further, described hold assembly is provided with vertically the section of holding and laterally extending section, and described card holding structure is the male and fomale(M&F) of being located in the described vertically section of holding, and described lifting face is located on the end face of described laterally extending section.
Further, described hold assembly is provided with vertically the section of holding and laterally extending section, and described card holding structure is the bayonet lock of being located in the described vertically section of holding, and described lifting face is located on the end face of described laterally extending section.
Further, a plurality of described hold assemblies are distributed in the both sides of described shake table.
Further, described shake table is provided with chute, and described hold assembly bottom is provided with blade fin, and described blade fin is stuck in described chute slidably.
Further, described driving mechanism is telescopic oil cylinder or telescopic cylinder, and one end of described telescopic oil cylinder or telescopic cylinder is connected with hold assembly, and the other end is connected with shake table.
Further, between support frame as described above and shake table, be provided with vibration absorber.
Vibratory concrete device involving vibrations platform, vibrating mechanism and a plurality of clamp mechanism that the present invention proposes; Described vibrating mechanism is connected with shake table, for driving described shake table vibration; Described clamp mechanism comprises driving mechanism and hold assembly, and described hold assembly slides and is arranged on described shake table, and described driving mechanism is used for driving described hold assembly to slide; And be provided with lifting face on described hold assembly, described hold assembly is provided with card holding structure away from the end at shake table center, described lifting face near a side of described end higher than opposite side.During operation, mould platform moves to vibration station, under the driving of driving mechanism, a plurality of hold assemblies do relative motion on shake table, the lifting face of hold assembly, by mould platform jack-up, makes mould platform depart from driving rolls, after the further relative motion of a plurality of hold assemblies, card holding structure blocks mould platform, and then mould platform is fixed on shake table.Known by operating principle, this vibratory concrete device is when clamping die platform, and the single movement by hold assembly can be transferred to mould platform on shake table and be fixed from driving rolls; Compared with prior art, utilize this vibratory concrete device can save independently elevating mechanism.Therefore, utilize this precast concrete vibrating device, can simplify the structure of precast concrete production system, for manufacture, the installation and maintenance of precast concrete production system facilitates.
On the other hand, the present invention also proposes a kind of precast concrete production system, the vibratory concrete device that comprises mould platform, driving rolls and above-mentioned any one, a plurality of described driving rolls are linearly arranged, described mould platform is movably disposed within on a plurality of described driving rolls, on the straight line that described vibratory concrete Plant arrangement forms at a plurality of described driving rolls, described clamp mechanism is used for clamping described mould platform.
Further, described mould platform both sides are provided with the inclined plane coordinating with described lifting face.
Further, described vibratory concrete device also comprises lifting platform, described lifting platform is liftably arranged on shake table or support frame as described above, and the end of described lifting platform is positioned at the top of described hold assembly, described hold assembly can drive lifting platform to move up and down, and after lifting platform moves to extreme higher position, clamps described lifting platform and described mould platform simultaneously.
Further, be provided with guide support parts on described shake table, described guide support parts are provided with the axis of guide, and described lifting platform is provided with the pilot hole coordinating with the axis of guide.
By adopting above-mentioned vibratory concrete device, the structure of the precast concrete production system that the present invention proposes is simpler, manufacturing cost is lower, installation and maintenance is more convenient.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
One of scene graph during vibratory concrete device operation that Fig. 1 provides for the specific embodiment of the invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 be in Fig. 1 the scene graph during operation of vibratory concrete device two;
Fig. 4 is the left view of Fig. 3;
Scene graph during vibratory concrete device operation that Fig. 5 provides for another specific embodiment of the present invention.
Description of reference numerals:
1-shake table, 2-vibrating mechanism, 3-clamp mechanism, 4-bracing frame, 5-mould platform
6-driving rolls, 7-vibration absorber, 8-lifting platform, 9-guide support parts
10-chute, 11-axis of guide, 12-pilot hole 13-support shaft shoulder
31-telescopic oil cylinder, 32-hold assembly, 33-lifting face, 34-blade fin
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.Below in conjunction with 1 to 5 pair of specific embodiments of the invention of accompanying drawing, be elaborated.
Fig. 1 and Fig. 2 are the working scene figure of mould platform when being positioned at vibration station and mould platform and being supported on shake table top by driving rolls, only show the part-structure of associated components in figure.
Fig. 3 and Fig. 4 are the working scene figure of mould platform when departing from driving rolls and being fixed on shake table, only show the part-structure of associated components in figure.
Fig. 5 is the scene graph while being provided with the vibratory concrete device operation of lifting platform and guide support parts, only shows the part-structure of associated components in figure.
As shown in Figure 1, the vibratory concrete device that the specific embodiment of the invention proposes comprises that bracing frame 4, shake table 1, vibrating mechanism 2 and a plurality of clamp mechanism 3(are clear for showing, only show one in figure), shake table 1 is set up on bracing frame 4; Vibrating mechanism 2 is connected with shake table 1, and clamp mechanism 3 comprises driving mechanism and hold assembly 32, and hold assembly 32 slides and is arranged on shake table 1, and driving mechanism is used for driving hold assembly 32 to slide; And be provided with lifting face 33 on hold assembly 32, hold assembly 32 is provided with card holding structure away from the end at shake table 1 center, lifting face 33 near a side of described end higher than opposite side.In the present embodiment, card holding structure is grab, is convenient to clamping die platform, driving mechanism is telescopic oil cylinder 31, one end of telescopic oil cylinder 31 is connected with shake table 1, and the other end is connected with hold assembly 32, is appreciated that, one end of telescopic oil cylinder 31 also can be connected with bracing frame 4, the other end is connected with hold assembly 32, as long as can drive hold assembly 32 to slide, in addition, bracing frame 4 can be frame, can be also the supporting mechanism arranging on ground.During operation, mould platform 5 moves to vibration station (as shown in Figure 2 under the driving of driving rolls 6, mould platform 5 is supported on shake table 1 top by driving rolls 6), under the driving of telescopic oil cylinder 31, a plurality of hold assemblies 32 do relative motion and (in figure, only show a hold assembly 32 on shake table 1, these parts specifically move towards A direction, not shown, hold assembly 32 on the other side is towards the contrary direction motion of A), the lifting face 33 of hold assembly 32 by mould platform 5 jack-up (now, mould platform 5 departs from driving rolls 6), after the further relative motion of a plurality of hold assemblies 32, card holding structure blocks mould platform 5, and then mould platform 5 is fixed on to (as shown in Figure 3 and Figure 4) on shake table 1.Known by operating principle, this vibratory concrete device is when clamping die platform 5, and the single movement by hold assembly 32 can be transferred to mould platform 5 on shake table 1 and be fixed from driving rolls 6; Compared with prior art, can save independently elevating mechanism.Therefore, utilize this precast concrete vibrating device, can simplify the structure of precast concrete production system, for manufacture, the installation and maintenance of precast concrete production system facilitates.
In addition, hold assembly 32 can have various structures, as long as it can be transferred to mould platform 5 on shake table 1 from driving rolls 6 in clamping process; Particularly, hold assembly 32 at least can have following three kinds of structures:
1) hold assembly 32 is provided with hook body and laterally extending section, and card holding structure is the bayonet socket of being located on hook body, and lifting face 33 is located on the end face of laterally extending section, and laterally extending section is connected with the piston rod of telescopic oil cylinder 31.During operation, by bayonet socket, block the raised brim of mould platform 5, and then mould platform 5 is clamped on shake table 1.
2) hold assembly 32 is provided with vertically the section of holding and laterally extending section, and card holding structure is the male and fomale(M&F) of being located in the vertical section of holding, and lifting face 33 is located on the end face of laterally extending section, and laterally extending section is connected with the piston rod of telescopic oil cylinder 31.During operation, vertically the male and fomale(M&F) in the section of holding is clamped the end face of mould platform 5 closely, and the frictional force by male and fomale(M&F) and mould platform 5 surfaces is fixed on mould platform 5 on shake table 1.Certainly, in order to increase male and fomale(M&F) and Mo Tai 5 end face adhesions, also can on mould platform 5 end faces, arrange and concaveconvex structure that vertically section of holding matches.
3) hold assembly 32 is provided with vertically the section of holding and laterally extending section, and card holding structure is the bayonet lock of being located in the vertical section of holding, and lifting face 33 is located on the end face of laterally extending section, is provided with the hole clipping coordinating with bayonet lock on mould platform 5; During operation, bayonet lock is inserted in the hole clipping of mould platform 5 and mould platform 5 can be fixed on shake table 1.
In the above-described embodiments, a plurality of hold assemblies 32 are arranged in the both sides of shake table 1, for making mould platform 5 stress equalizations, preferably a plurality of hold assemblies 32 are arranged symmetrically in to the both sides of shake table 1.
In embodiment further, as shown in Figure 2 and Figure 4, on shake table 1, be also provided with chute 10, hold assembly 32 bottoms are provided with blade fin 34, and blade fin 34 is stuck in chute 10 slidably.By blade fin 34, can increase the contact area of hold assembly 32 and shake table 1, thereby improve the stressed of hold assembly 32 and shake table 1; And blade fin 34 is fastened in chute 10 slidably, clamp groove component can only be slided along draw-in groove, avoid hold assembly 32 to depart under external force and being slidably matched of shake table 1.Certainly, also can on shake table 1, blade fin be set, hold assembly 32 bottoms are provided with chute, and blade fin is stuck in chute slidably, and principle is similar to aforementioned principles.
In embodiment further, between shake table 1 and bracing frame 4, be provided with vibration absorber 7, when shake table 1 vibration, vibration absorber 7 can prevent that vibrational energy is passed to ground by support, make vibrational energy be transmitted to greatest extent mould platform, make the precast concrete on mould platform reach closely knit object, vibration absorber 7 can adopt the forms such as spring, rubber, air bag or its combination.
It should be noted that, in other embodiments, can be with telescopic cylinder or pinion and rack or chain replacement telescopic oil cylinder 31, as long as can drive hold assembly 32 to realize rectilinear motion.
Different from the device of vibratory concrete shown in Fig. 1 is, Fig. 5 shows the vibratory concrete device of another kind of structure, it carrys out supporting die platform 5 by lifting platform 8, particularly, lifting platform 8 is liftably arranged on shake table 1, and the end of lifting platform 8 is positioned at the top of hold assembly 32, mould platform 5 moves to vibration station and stopping, now be positioned at the top of lifting platform 8, vibration service is carried out in preparation, telescopic oil cylinder 31 is retracted lifting platform 8 liftings, after contact mould platform 5 by mould platform 5 together lifting, at lifting platform 8, move to behind extreme higher position, hold assembly 32 clamps lifting platform 8 and Mo Tai 5 simultaneously, start vibration service.By lifting platform 8 is set, can improve the stressed of mould platform 5, especially stressed when lifting of mould platform 5 ends, extends the service life of mould platform 5, and then also can the thickness of mould platform 5 be arranged thinlyyer; In addition, in order to guarantee that 8 of lifting platforms do the motion of vertical direction and improve the stressed of lifting platform, be provided with guide support parts 9 on shake table 1, particularly, guide support parts 9 are provided with the axis of guide 11, and lifting platform 8 is provided with the pilot hole 12 coordinating with the axis of guide 11; For ease of supporting elevation platform, can arrange and support the shaft shoulder 13 at guide support parts 9, while not being lifted, lifting platform 8 can pass through the shaft shoulder 13 supporting elevation platforms of guide support parts 9, when telescopic oil cylinder 31 is retracted, under the guide effect of the axis of guide 11 and pilot hole 12, lifting platform 8 can only up move, when telescopic oil cylinder 31 stretches out, lifting platform 8, under the effect of gravity, automatically resets.It should be noted that, in such scheme, lifting platform 8 can also liftably be arranged on bracing frame 4, as long as corresponding lifting structure is set on bracing frame 4 and lifting platform 8, lifting platform 8 can and clamp by clamp mechanism 3 liftings.
In addition, the precast concrete production system that the specific embodiment of the invention proposes comprises mould platform 5, driving rolls 6 and above-mentioned vibratory concrete device, a plurality of driving rolls 6 are linearly arranged, on the straight line that vibratory concrete Plant arrangement forms at a plurality of driving rolls 6.By adopting above-mentioned vibratory concrete device, the structure of this precast concrete production system is simpler, manufacturing cost is lower, installation and maintenance is more convenient.It should be noted that, the driving rolls 6 in above-mentioned precast concrete production system can part substitute with return idler.
In the embodiment of hold assembly 32 direct supporting die platforms 5, for making mould platform 5 lifting smoothly in the stretching motion of hold assembly 32, mould platform 5 both sides are provided with the inclined plane coordinating with lifting face 33.In addition, at hold assembly 32, by the embodiment of lifting platform 8 supporting die platforms 5, for making lifting platform 8 lifting smoothly in the stretching motion of hold assembly 32, the both sides of lifting platform 8 also can be provided with the inclined plane coordinating with lifting face 33.
It should be noted that, in the above-described embodiments, the plane of lifting face 32 for tilting, but also can adopt other structure to replace, as the combination on the curved surface of recessed or epirelief or curved surface and inclined-plane, as long as guarantee that there is certain lifting at the two ends of lifting face 32, in the process that hold assembly 32 moves, can depart from driving rolls 6 by Lifting Modules platform.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (12)

1. a vibratory concrete device, comprises bracing frame (4), shake table (1), vibrating mechanism (2) and a plurality of clamp mechanism (3), and described shake table (1) is set up on support frame as described above (4); Described vibrating mechanism (2) is connected with shake table (1), for driving described shake table (1) vibration; It is characterized in that, described clamp mechanism (3) comprises driving mechanism and hold assembly (32), and described hold assembly (32) slides and is arranged at described shake table (1) above, and described driving mechanism is used for driving described hold assembly (32) to slide; And be provided with lifting face (33) on described hold assembly (32), described hold assembly (32) is provided with card holding structure away from the end at shake table (1) center, a side of the close described end of described lifting face (33) is higher than opposite side.
2. vibratory concrete device according to claim 1, it is characterized in that, described hold assembly (32) is provided with hook body and laterally extending section, and described card holding structure is the bayonet socket of being located on described hook body, and described lifting face (33) is located on the end face of described laterally extending section.
3. vibratory concrete device according to claim 1, it is characterized in that, described hold assembly (32) is provided with vertically the section of holding and laterally extending section, and described card holding structure is the male and fomale(M&F) of being located in the described vertically section of holding, and described lifting face (33) is located on the end face of described laterally extending section.
4. vibratory concrete device according to claim 1, it is characterized in that, described hold assembly (32) is provided with vertically the section of holding and laterally extending section, and described card holding structure is the bayonet lock of being located in the described vertically section of holding, and described lifting face (33) is located on the end face of described laterally extending section.
5. according to the vibratory concrete device described in claim 1 to 4 any one, it is characterized in that, a plurality of described hold assemblies (32) are distributed in the both sides of described shake table (1).
6. according to the vibratory concrete device described in claim 1 to 4 any one, it is characterized in that, described shake table (1) is provided with chute (10), and described hold assembly (32) bottom is provided with blade fin (34), and described blade fin (34) is stuck in described chute (10) slidably.
7. according to the vibratory concrete device described in claim 1 to 4 any one, it is characterized in that, described driving mechanism is telescopic oil cylinder (31) or telescopic cylinder, and one end of described telescopic oil cylinder (31) or telescopic cylinder is connected with hold assembly (32), and the other end is connected with shake table (1).
8. according to the vibratory concrete device described in claim 1 to 4 any one, it is characterized in that, between support frame as described above (4) and shake table (1), be provided with vibration absorber (7).
9. a precast concrete production system, it is characterized in that, comprise the vibratory concrete device described in mould platform (5), driving rolls (6) and claim 1 to 8 any one, a plurality of described driving rolls (6) are linearly arranged, described mould platform (5) is movably disposed within on a plurality of described driving rolls (6), on the straight line that described vibratory concrete Plant arrangement forms at a plurality of described driving rolls (6), described clamp mechanism (3) is for clamping described mould platform (5).
10. precast concrete production system according to claim 9, is characterized in that, described mould platform (5) both sides are provided with the inclined plane coordinating with described lifting face (33).
11. precast concrete production systems according to claim 9, it is characterized in that, described vibratory concrete device also comprises lifting platform (8), described lifting platform (8) is liftably arranged on shake table (1) or support frame as described above (4), and the end of described lifting platform (8) is positioned at the top of described hold assembly (32), described hold assembly (32) can drive lifting platform (8) to move up and down, and after lifting platform (8) moves to extreme higher position, clamps described lifting platform (8) and described mould platform (5) simultaneously.
12. precast concrete production systems according to claim 11, it is characterized in that, on described shake table (1), be provided with guide support parts (9), described guide support parts (9) are provided with the axis of guide (11), and described lifting platform (8) is provided with the pilot hole (12) coordinating with the axis of guide (11).
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Cited By (7)

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CN103862552A (en) * 2014-03-31 2014-06-18 三一汽车制造有限公司 Precast concrete element production system, concrete vibration device and concrete vibration control method
CN104015259A (en) * 2014-06-20 2014-09-03 北方重工集团有限公司 Mold table driving device with air bag
CN106003366A (en) * 2016-05-24 2016-10-12 黑龙江省中信路桥材料有限公司 Fixing device for box culvert die and vibration table suitable for producing square culvert products
CN106564113A (en) * 2016-10-19 2017-04-19 中国地质大学(武汉) Experimental vibrating table
CN109049271A (en) * 2018-09-26 2018-12-21 武汉龙旗智能自动化设备有限公司 The production mechanism of each component of road and bridge guardrail in prefabricated components automatic production line
CN109732743A (en) * 2019-01-31 2019-05-10 浙江广天构件股份有限公司 A movable vibration device of a mold table
CN110614706A (en) * 2019-11-21 2019-12-27 湖南三一快而居住宅工业有限公司 Double-skin wall production equipment and production line thereof

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CN103862552A (en) * 2014-03-31 2014-06-18 三一汽车制造有限公司 Precast concrete element production system, concrete vibration device and concrete vibration control method
CN104015259A (en) * 2014-06-20 2014-09-03 北方重工集团有限公司 Mold table driving device with air bag
CN104015259B (en) * 2014-06-20 2016-03-02 北方重工集团有限公司 A kind of die station drive unit with air bag
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CN106564113A (en) * 2016-10-19 2017-04-19 中国地质大学(武汉) Experimental vibrating table
CN109049271A (en) * 2018-09-26 2018-12-21 武汉龙旗智能自动化设备有限公司 The production mechanism of each component of road and bridge guardrail in prefabricated components automatic production line
CN109049271B (en) * 2018-09-26 2024-03-22 武汉龙旗智能自动化设备有限公司 Production mechanism of road and bridge guardrail components in prefabricated component automatic production line
CN109732743A (en) * 2019-01-31 2019-05-10 浙江广天构件股份有限公司 A movable vibration device of a mold table
CN110614706A (en) * 2019-11-21 2019-12-27 湖南三一快而居住宅工业有限公司 Double-skin wall production equipment and production line thereof

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