CN110722681A - Concrete mixing device for construction - Google Patents
Concrete mixing device for construction Download PDFInfo
- Publication number
- CN110722681A CN110722681A CN201911010097.3A CN201911010097A CN110722681A CN 110722681 A CN110722681 A CN 110722681A CN 201911010097 A CN201911010097 A CN 201911010097A CN 110722681 A CN110722681 A CN 110722681A
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- CN
- China
- Prior art keywords
- mixing
- stirring
- shaft
- concrete
- bearing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
- B28C5/146—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis with several stirrers with parallel shafts in one container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
- B28C5/085—Hydraulic drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0868—Mixing apparatus in which a mixing container is hoisted along an inclined or vertical track during mixing to discharge at a higher level
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0887—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing provided with sieves or filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/48—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected by vibrations
- B28C5/485—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected by vibrations with reciprocating or oscillating stirrers; Stirrers therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a concrete stirring device for building construction, which comprises a support, wherein a stirring barrel device is arranged on the support, telescopic bearing devices are arranged on two sides of the stirring barrel device, a telescopic high-speed stirring device is arranged on the stirring barrel device, the telescopic high-speed stirring device is telescopic through the telescopic bearing devices, so that stirring blades are movably stirred in a stirring barrel, the concrete stirring is quickly and efficiently completed, a controller is arranged on the support, a signal receiving end of the controller is electrically connected with the stirring barrel device, and a control signal output end of the controller is electrically connected with the telescopic high-speed stirring device. The invention has the advantages of simple structure and strong practicability.
Description
Technical Field
The invention relates to the field of construction stirring related equipment, in particular to a concrete stirring device for construction.
Background
The stirring device is a machine which is widely applied at present, can fully mix various different raw materials to obtain a required mixture, replaces the traditional manual stirring of the raw materials, greatly improves the production efficiency, and is uniform in stirring and mixing, thereby effectively improving the quality of products. Present agitating unit adopts ordinary agitating unit or mixer to stir mostly, and prior art's mixer only is equipped with a (mixing) shaft usually in the churn, because the stirring speed of these mixers is low, and is inefficient, easily takes place to stir the dead angle, often stirs for a long time and can not realize better stirring effect. Greatly reduces the production efficiency of enterprises and improves the production cost of the enterprises.
In patent CN 201721063242-an efficient concrete mixing device, rotate simultaneously through setting up main bull stick and follow bull stick, the churning time has been reduced, the effectual efficiency of stirring that has improved, through setting up main puddler and follow puddler that stagger each other, the stirring dead angle has been reduced, make stirring material more even, through setting up the (mixing) shaft, the effectual stirring dead angle that has reduced, the condition of layering about having avoided the material to appear, prevented that the material from easily adhering on the inner wall, the material can not get the condition of complete discharge when arranging the material, the effectual stirring efficiency that has improved passes through, through setting up the shock attenuation foot, the vibration that produces when having alleviated the stirring, make stirring in-process agitator tank more steady, effectively improve the efficiency of stirring.
Although the device can improve the stirring efficiency, the space in the stirring box is greatly reduced, so that the quantity of the concrete stirred by the device at one time is reduced, and the stirring efficiency of the concrete cannot be effectively improved.
Disclosure of Invention
The invention aims to solve the problems and designs a concrete mixing device for building construction.
The technical scheme includes that the concrete stirring device for building construction comprises a support, a stirring cylinder device is arranged on the support, telescopic bearing devices are arranged on two sides of the stirring cylinder device, a telescopic high-speed stirring device is arranged on the stirring cylinder device and is telescopic through the telescopic bearing devices, stirring blades are movably stirred in the stirring cylinder, and accordingly concrete stirring is rapidly and efficiently completed.
The stirring barrel device comprises a stirring barrel body installed above the support, a stirring funnel is installed at the center of the upper portion of the stirring barrel body, inlet pipes are installed at two ends of the upper portion of the stirring barrel body, the inlet pipes are fixedly connected with an external water pipe, and a flow sensor is installed on the inlet pipes.
Scalable bearing device includes stirring barrel both sides side surface center department opens there is the stirring shaft hole, the downthehole rubber packing pad of installing of (mixing) shaft, stirring barrel both sides side surface center department installs the triangle mount, install the fixed lantern ring on the triangle mount, the spacing bearing of (mixing) shaft is installed to fixed cover inside center department, it has four fixed keyways to open on the spacing bearing inside surface of (mixing) shaft, four fixed keyway evenly distributed are on the spacing bearing of (mixing) shaft, movable mounting has fixed shaft key in the fixed keyway, two agitator bearings are installed at the inside both ends of the fixed lantern ring, two agitator bearing outside edges and the spacing bearing fixed connection of (mixing) shaft.
The telescopic high-speed stirring device comprises four hydraulic oil cylinders which are respectively arranged on the side surfaces of the two sides of the stirring cylinder body, the four hydraulic oil cylinders are evenly distributed on the side surface of the stirring cylinder body and are positioned around the triangular fixing frame, the telescopic ends of the four hydraulic oil cylinders are provided with telescopic platforms, the centers of the side surfaces of the telescopic platforms are provided with rotating motors, a stirring port is arranged at the center of the side surface of the telescopic platform, a fixed bearing is arranged in the stirring port, a stirring shaft is arranged in the fixed bearing and is movably connected with the stirring bearing, the stirring shaft is fixedly connected with the rotating end of the rotating motor, the stirring shaft is movably connected with the rubber sealing gasket, four shaft key grooves are formed in the stirring shaft and are respectively movably connected with the four fixed shaft keys, and multiple stirring devices are arranged on the stirring shaft.
The multiple stirring device comprises a stirring frame installed at one end of the stirring shaft, the stirring frame is located inside the stirring barrel, a spiral stirring blade is installed on the surface of the outer side of the stirring frame, the spiral stirring blade is movably connected with the stirring barrel, a plurality of stirring rods are arranged between every two adjacent stirring frames, and a stirring rod net is formed by the plurality of stirring rods.
And the hydraulic oil cylinders on two sides of the stirring cylinder body stir the concrete through staggered expansion.
Stirring barrel lower surface one end is equipped with the stirring export, be equipped with intelligent switch lid in the stirring export.
The rotating motor sends the concrete out of the stirring cylinder body through staggered stretching and forward and reverse rotation.
The control signal output end of the controller is electrically connected with the rotating motor, the hydraulic oil cylinder and the intelligent switch cover, and the signal receiving end of the controller is electrically connected with the flow sensor.
According to the concrete stirring device for building construction, the fixed key groove is formed in the limiting bearing of the stirring shaft, the fixed shaft key is limited in the fixed key groove through the stirring bearing, the stirring shaft is driven by the hydraulic oil cylinder to move to stir concrete, meanwhile, the concrete in the stirring cylinder can be fully stirred through staggered expansion of the hydraulic oil cylinder, and meanwhile, the stirring rod net and the spiral stirring blades are arranged on the stirring frame, so that the concrete can be stirred more uniformly.
Drawings
FIG. 1 is a schematic structural view of a concrete mixing device for building construction according to the present invention;
FIG. 2 is a schematic view of the triangular fixing frame of the present invention;
FIG. 3 is a schematic view of the telescopic bearing assembly of the present invention;
FIG. 4 is a schematic view of a spacing bearing of the agitator shaft according to the present invention;
FIG. 5 is a schematic view of a multiple agitation apparatus according to the present invention;
in the figure, 1, a bracket; 2. a controller; 3. a mixing cylinder; 4. a stirring funnel; 5. a water inlet pipe; 6. a flow sensor; 7. a stirring shaft hole; 8. a rubber gasket; 9. a triangular fixing frame; 10. fixing the sleeve; 11. a stirring shaft limit bearing; 12. fixing the key slot; 13. fixing the shaft key; 14. a stirring bearing; 15. a hydraulic cylinder; 16. a telescopic platform; 17. a rotating electric machine; 18. a stirring port; 19. fixing the bearing; 20. a stirring shaft; 21. a shaft keyway; 22. a stirring frame; 23. a spiral stirring blade; 24. a stirring rod; 25. a stirring outlet; 26. intelligent switch lid.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-5, in this embodiment:
firstly, when the device is required to be used, the device is connected with an external power supply, a concrete raw material is put into a stirring cylinder 3 through a stirring funnel 4, after the concrete raw material is put into the stirring cylinder, a water inlet pipe is connected with an external water pipe, water injection is started to be carried out into the stirring cylinder 3, a controller 2 monitors the flow of water through a flow sensor 6, the water injection amount is calculated through the water injection time, after the water injection amount reaches the set required water amount, the controller 2 informs a worker to disconnect the external water pipe, and the controller starts to control the device to operate;
the controller 2 controls the rotating motor 17 to start working, the rotating motor 17 rotates to drive the stirring shaft 20 to start rotating, the stirring shaft 20 rotates to drive the stirring frame 22 to start rotating, the stirring frame 22 rotates to start stirring concrete in the stirring cylinder 3, meanwhile, the spiral stirring blades 23 on the stirring frame 22 start stirring concrete attached to the inner side surface of the stirring cylinder 3 through rotation, the stirring range of the stirring frame is increased, meanwhile, the stirring rod net formed by the stirring rods 24 starts stirring concrete along with the rotation of the stirring frame 22 while the stirring frame 22 rotates, and the concrete is subjected to coarse filtration through the stirring rod net formed by the stirring rods 24, so that the concrete can be more fully mixed during stirring;
the controller 2 controls the hydraulic oil cylinders 15 on the left side and the right side to work simultaneously, the hydraulic oil cylinders 15 start to stretch and retract to drive the telescopic platform 16 to move, the telescopic platform 16 moves to drive the stirring shaft 20 to move, the stirring shaft 20 is provided with a shaft key groove 21, meanwhile, a fixed key groove 12 is arranged in the stirring shaft limiting bearing 11, so that the stirring shaft 20 is connected with the stirring shaft limiting bearing 11 through a fixed shaft key 13, the fixed shaft key 13 is used for limiting the movement of the stirring shaft 20 in the stirring shaft limiting bearing 11, the stirring shaft 20 can move transversely without influencing the longitudinal rotation, when the stirring shaft 20 moves, the fixed shaft key 13 starts to slide in the shaft key groove 21, so that the stirring shaft 20 can move, meanwhile, the stirring frame 22 is driven to move in the stirring barrel 3 through the fixing and supporting of the fixed shaft key 13 without shaking during the rotation, and the stirring frame 22 is driven to move through the movement of, stirring concrete, wherein when the hydraulic oil cylinder 15 on one side extends out, the hydraulic oil cylinder 15 on the other side contracts, so that the stirring frame 22 moves while stirring in the stirring cylinder 3, the stirring range of the stirring frame is increased, and the stirring efficiency is higher and faster;
after the stirring is finished, the controller 2 controls the intelligent switch cover 26 to be opened, and simultaneously controls the rotating motor 17 to rotate, the rotating motor 17 drives the stirring frame 22 to rotate, the stirring frame 22 rotates to drive the spiral stirring blade 23 to rotate, the concrete is moved to the stirring outlet 25 through the rotation of the spiral stirring blade 23, and then the concrete is matched with the hydraulic oil cylinder 15 to stretch, so that the concrete in the stirring cylinder 3 is discharged to the outside through the stirring outlet 25 through the spiral stirring blade 23.
In the above-mentioned operation, support and spacing through the spacing bearing 11 of (mixing) shaft, make (mixing) shaft 20 can slide when rotatory, make things convenient for stirring frame 22 to remove in stirring barrel 3 to make the concrete in stirring barrel 3 carry out abundant effectual stirring through the flexible rotation of stirring frame 22, make the more abundant of concrete mixing through spiral stirring leaf 23 and puddler 24 simultaneously.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a concrete mixing device for construction, includes support (1), its characterized in that, be equipped with stirring barrel device on support (1), stirring barrel device both sides are equipped with scalable bearing device, be equipped with flexible high-speed mixing device on the stirring barrel device, flexible high-speed mixing device stretches out and draws back through scalable bearing device, makes the stirring leaf carry out portable stirring in the stirring barrel to high efficiency's completion concrete mixing, be equipped with controller (2) on support (1), the signal reception end and the stirring barrel device electric connection of controller (2), the control signal output of controller (2) and flexible high-speed mixing device electric connection.
2. The concrete mixing device for building construction according to claim 1, wherein the mixing cylinder device comprises a mixing cylinder (3) installed above the support (1), a mixing funnel (4) installed at the center above the mixing cylinder (3), water inlet pipes (5) installed at two ends above the mixing cylinder (3), the water inlet pipes (5) are fixedly connected with an external water pipe, and a flow sensor (6) is installed on the water inlet pipes (5).
3. The concrete mixing device for building construction according to claim 1, wherein the telescopic bearing device comprises a mixing shaft hole (7) opened at the center of the side surface of the mixing cylinder body (3), a rubber gasket (8) installed in the mixing shaft hole (7), a triangular fixing frame (9) installed at the center of the side surface of the mixing cylinder body (3), a fixing sleeve ring (10) installed on the triangular fixing frame (9), a mixing shaft limit bearing (11) installed at the center of the inside of the fixing sleeve (10), four fixing key slots (12) opened on the surface of the inner side of the mixing shaft limit bearing (11), the four fixing key slots (12) are evenly distributed on the mixing shaft limit bearing (11), a fixing shaft key (13) is movably installed in the fixing key slot (12), and two mixing bearings (14) are installed at the two ends of the inside of the fixing sleeve ring (10), the outer edges of the two stirring bearings (14) are fixedly connected with the stirring shaft limiting bearing (11).
4. The concrete mixing device for building construction according to claim 1, wherein the telescopic high-speed mixing device comprises four hydraulic oil cylinders (15) respectively mounted on the side surfaces of the two sides of the mixing cylinder body (3), the four hydraulic oil cylinders (15) are uniformly distributed on the side surface of the mixing cylinder body (3), the four hydraulic oil cylinders (15) are located around a triangular fixing frame (9), telescopic platforms (16) are mounted at the telescopic ends of the four hydraulic oil cylinders (15), a rotating motor (17) is mounted at the center of the side surface of each telescopic platform (16), a mixing port (18) is arranged at the center of the side surface of each telescopic platform (16), a fixed bearing (19) is mounted in each mixing port (18), a mixing shaft (20) is mounted in each fixed bearing (19), and the mixing shaft (20) is movably connected with a mixing bearing (14), the stirring shaft (20) is fixedly connected with the rotating end of the rotating motor (17), the stirring shaft (20) is movably connected with the rubber sealing gasket (8), the stirring shaft (20) is provided with four shaft key grooves (21), the four shaft key grooves (21) are respectively movably connected with four fixed shaft keys (13), and the stirring shaft (20) is provided with multiple stirring devices.
5. The concrete mixing device for building construction according to claim 4, wherein the multiple mixing device comprises a mixing frame (22) installed at one end of the mixing shaft (20), the mixing frame (22) is located inside a mixing cylinder (3), a spiral mixing blade (23) is installed on the surface of the outer side of the mixing frame (22), the spiral mixing blade (23) is movably connected with the mixing cylinder (3), a plurality of mixing rods (24) are arranged between two adjacent mixing frames (22), and a mixing rod network is formed by the plurality of mixing rods (24).
6. The concrete mixer for building construction according to claim 4, wherein the hydraulic cylinders (15) on both sides of the mixing drum (3) mix concrete by telescoping in a staggered manner.
7. The concrete mixing device for building construction according to claim 1, wherein a mixing outlet (25) is arranged at one end of the lower surface of the mixing cylinder (3), and an intelligent switch cover (26) is arranged on the mixing outlet (25).
8. The concrete mixer for building construction according to claim 4, wherein the rotating motor (17) sends the concrete out of the mixer drum (3) by alternate expansion and contraction and forward and reverse rotation.
9. The concrete mixing device for building construction according to claim 1, wherein a control signal output end of the controller (2) is electrically connected with the rotating motor (17), the hydraulic oil cylinder (15) and the intelligent switch cover (26), and a signal receiving end of the controller (2) is electrically connected with the flow sensor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911010097.3A CN110722681A (en) | 2019-10-23 | 2019-10-23 | Concrete mixing device for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911010097.3A CN110722681A (en) | 2019-10-23 | 2019-10-23 | Concrete mixing device for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110722681A true CN110722681A (en) | 2020-01-24 |
Family
ID=69222892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911010097.3A Pending CN110722681A (en) | 2019-10-23 | 2019-10-23 | Concrete mixing device for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110722681A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249406A (en) * | 2020-10-09 | 2021-01-22 | 湖北机电院装备制造有限责任公司 | Transmission assembly, dyestripping mechanism and automobile wheel hub sticking film machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707796A (en) * | 2013-12-04 | 2014-04-09 | 莱州亚通重型装备有限公司 | Mining underground concrete mixing transport vehicle |
| CN108274638A (en) * | 2018-01-17 | 2018-07-13 | 朱园园 | A kind of construction concrete batch plant |
| CN207616904U (en) * | 2017-11-16 | 2018-07-17 | 单宗清 | A kind of bridge building operations concrete mixing stirring device |
| CN108394027A (en) * | 2018-02-09 | 2018-08-14 | 福建弘高石粉综合利用有限公司 | Fine sand concrete gelling production method of the concrete central mix plant production containing waste stone dust |
| CN108407093A (en) * | 2018-04-03 | 2018-08-17 | 黄广仙 | A kind of municipal construction concrete batch plant |
| CN208343162U (en) * | 2018-06-22 | 2019-01-08 | 江苏博拓新型建筑材料有限公司 | A kind of agitating device for premixing mortar |
| CN208645678U (en) * | 2018-06-22 | 2019-03-26 | 江苏博拓新型建筑材料有限公司 | A kind of premixing mortar storage equipment |
| CN209049314U (en) * | 2018-09-30 | 2019-07-02 | 焦作市金星耐火材料有限公司 | Mixing device is used in a kind of production of refractory brick |
-
2019
- 2019-10-23 CN CN201911010097.3A patent/CN110722681A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707796A (en) * | 2013-12-04 | 2014-04-09 | 莱州亚通重型装备有限公司 | Mining underground concrete mixing transport vehicle |
| CN207616904U (en) * | 2017-11-16 | 2018-07-17 | 单宗清 | A kind of bridge building operations concrete mixing stirring device |
| CN108274638A (en) * | 2018-01-17 | 2018-07-13 | 朱园园 | A kind of construction concrete batch plant |
| CN108394027A (en) * | 2018-02-09 | 2018-08-14 | 福建弘高石粉综合利用有限公司 | Fine sand concrete gelling production method of the concrete central mix plant production containing waste stone dust |
| CN108407093A (en) * | 2018-04-03 | 2018-08-17 | 黄广仙 | A kind of municipal construction concrete batch plant |
| CN208343162U (en) * | 2018-06-22 | 2019-01-08 | 江苏博拓新型建筑材料有限公司 | A kind of agitating device for premixing mortar |
| CN208645678U (en) * | 2018-06-22 | 2019-03-26 | 江苏博拓新型建筑材料有限公司 | A kind of premixing mortar storage equipment |
| CN209049314U (en) * | 2018-09-30 | 2019-07-02 | 焦作市金星耐火材料有限公司 | Mixing device is used in a kind of production of refractory brick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249406A (en) * | 2020-10-09 | 2021-01-22 | 湖北机电院装备制造有限责任公司 | Transmission assembly, dyestripping mechanism and automobile wheel hub sticking film machine |
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Application publication date: 20200124 |
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