CN106142332A - Two panels scalable interior mould gas flue shake casting machine - Google Patents
Two panels scalable interior mould gas flue shake casting machine Download PDFInfo
- Publication number
- CN106142332A CN106142332A CN201610744793.7A CN201610744793A CN106142332A CN 106142332 A CN106142332 A CN 106142332A CN 201610744793 A CN201610744793 A CN 201610744793A CN 106142332 A CN106142332 A CN 106142332A
- Authority
- CN
- China
- Prior art keywords
- casting machine
- panels
- interior mould
- gas flue
- frame
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/14—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means vibrating, e.g. the surface of the material
- B28B21/16—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means vibrating, e.g. the surface of the material one or more mould elements
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/82—Moulds built-up from several parts; Multiple moulds; Moulds with adjustable parts
- B28B21/84—Moulds with one or more pivotable parts
-
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
- Casting Devices For Molds (AREA)
Abstract
The present invention relates to the vibrations casting machine for production building gas flue.This machine includes that handle, internal mold organization, outer mold mechanism, external mold frame, depanning frame, vibration pump, resilient support form.Wherein the shaping mechanism of internal mold organization is made up of upper and lower two pieces of panels; top panel is " one " font; its downward flange in left and right two ends; lower panel is curved forward and backward and 3, the end by one piece of panel; in " U " font, the top of its left and right two end plates flange inwards, constitute dynamic cooperation with the lower flange part of top panel; contracting mechanism within internal mold organization is realized contraction and the expansion of interior mould by a pair left-handed nut and right-handed nut and many group pull bars, is provided with sealing strip between the side plate of external mold and base plate.The two ends in external mold stent length direction are provided with guide pad, limited block and bearing.Depanning frame is arranged over asking Kun, lower section to be provided with roller, and roller constitutes dynamic cooperation with guide rail.
Description
Technical field
The present invention relates to the process units of the gas flue of building.
Background technology
At present, the production of gas flue mainly uses simple mould, and manual operations, as described in Chinese patent 01140598
The gas flue mode of production is to be made by four pieces of panel piecemeals of composition gas flue, the most fixing demoulding after maintenance.The method
Production cycle is long, inefficiency.And for example the Chinese patent CN02264227.7 of semi-hand operation is disclosed that a kind of gas flue mould
Tool, including base plate, side plate with seal up a door, has practicality, but remains manual operations, nothing when producing gas flue with this mould
Method realizes efficient production, and Mold Making cost is high, and production efficiency is low.
And for example my Chinese patent CN101596742 and CN201410102067.6, is also for production building cigarette
The vibrations casting machine of feed channel, including head, frame, outer mold mechanism, internal mold organization, vibration pump, frame is frame-like, length side
To one end be head, the other end is afterbody, and the corner, bottom of frame and middle part are respectively provided on two sides with resilient support, and vibration pump is pacified
It is contained in bottom frame.Its inner mould portion is made up of 4 pieces of panels, mould side plate in internal mold top plate, interior baffle plate and two pieces, forms flue gas
The inwall mould in road.Internal mold top plate is provided with channel-section steel with the contact position of side plate, constitutes dynamic cooperation；Be laid with on its central shaft three sections with
On screw rod；The both sides of every section of screw rod are left and right hand thread respectively, are combined with left and right rotation square nut；Nut upper and lower, front,
Trailing flank is respectively connected to a pull bar, and the opposite side of 4 pull bars respectively connected 4 pieces of panels upper and lower, forward and backward of interior mould.Because of it
Interior mould is made up of contractile panel, greatly improves production efficiency, but finds problems with in production practices: (1)
Interior mould is enclosed construction, inconvenient maintenance；(2) interior mould is made up of 4 pieces of panels, first can outwards strut, cause gas flue to become during contraction
Product ftracture；(3) structure is complicated, and cost is high；(4) external mold side plate cannot seal with mold bottom plate, easy spillage.
Summary of the invention
In order to reduce production cost, improve existing equipment utilization rate, the invention provides a kind of brand-new smoke-air duct shocking
Casting machine.
The specific design scheme of the present invention is as follows:
Frame, internal mold organization, outer mold mechanism, vibration pump and gas flue frame is included for manufacturing the shake casting machine of building gas flue
5 part compositions.
Described frame is frame-like, and length direction one end is head, and the other end is afterbody, the corner, bottom of frame and middle part
Being respectively provided on two sides with resilient support, bottom the frame that vibration pump is installed, upper rack supports internal model structure.
Described internal mold organization includes that interior die cap plate 5, interior baffle plate 15, center screw mandrel 1, pull bar hinge 23, plate washer 9 form.
Described interior die cap plate 5, interior baffle plate 15, interior mould back side panel 26, interior mould front side board 27 constitute interior mould upper and lower, left,
Right four sides, is supported in external mold lower plate 14 by plate washer 9.Interior die cap plate 5 is made up of one piece of plane steel plate, and width two ends are downward
Curved 45 degree.Interior baffle plate 15, interior mould back side panel 26, interior mould front side board 27 are formed by one piece of panel bending.Interior mould back side panel 26 He
Interior mould front side board 27 upper position is provided with side plate square tube 17 and is connected with pull bar hinge 23, top end face bending 45 degree the most inwards, with
Interior die cap plate 4 matches, and interior die cap plate 4 is supported by organizing cover plate support bar 22 more, and each cover plate support bar 22 is connected by reinforcing bar.
Described center screw mandrel 1 is made up of a round bar, and interior mould is stretched out in one end, is connected to handle, and the other end runs through interior mould, wherein
Meta has installed one group of left hand thread and right-handed thread, and it has the left-handed nut 19 screwed therewith and dextrorotation tired female 21, left-handed
Together with nut 19 and dextrorotation tired female 21 are welded with the nut square tube 16 being enclosed within center screw mandrel 1, the inside of internal mold organization is provided with many
The pull bar 18 that group is arranged symmetrically with, one end is connected with the nut square tube 16 on center screw mandrel 1 by pull bar hinge 23, and the other end passes through
Pull bar hinge 23 is connected with the side plate square tube 17 above interior mould back side panel 26 and Nei Mo front side board 27.
Sealing strip 25 is used to seal, with mortar leakage prevention between described forward and backward external mold side plate 4 and external mold lower plate 24.
Described outer mold mechanism is arranged over external mold tie rod 3, with fixing outer mold mechanism.
Described external mold frame 7 is arranged over guide pad 2 and bearing, facilitates external mold location and regulation.
Described depanning frame 14 is provided with torr Kun 13, and convenient extraction gas flue finished product, depanning frame 14 is arranged on guide rail 12
On, facilitate assembly line work.
The Advantageous Effects of the present invention is embodied in following aspect:
(1) in gas flue, the two ends of mould are fixing supports, and interior mould need not bear the weight of gas flue finished product, improves support essence
Degree, Product Precision improves the most therewith；
(2) interior die face plate is reduced to 2 pieces by the 4 of aforementioned patent pieces, directional stability when improving contraction and product quality；
(3) redesigned contraction structure, by organizing left hand thread and right-handed thread is reduced to one group more, connecting rod need not to support and
Mould inwall in location；
(4) junction at external mold side plate Yu mold bottom plate is provided with a sealing strip, effectively prevent spillage；
(5), at the bottom of simple in construction, cost, can organize more and produce simultaneously.
Accompanying drawing explanation
The structural representation of Fig. 1 present invention.
Fig. 2 internal model structure schematic diagram.
Mould drive system structure schematic diagram in Fig. 3.
Fig. 4 internal model structure deployed condition right side regards schematic diagram.
Fig. 5 internal model structure contraction state right side regards schematic diagram.
Fig. 6 internal model structure deployed condition master regards partial schematic diagram.
Fig. 7 internal model structure contraction state master regards partial schematic diagram.
Fig. 8 internal model structure deployed condition main vertical view partial schematic diagram.
Fig. 9 internal model structure contraction state local schematic top plan view.
Figure 10 cast outer mold structure schematic diagram.
Figure 11 external mold rack construction schematic diagram.
Sequence number in upper figure: center screw mandrel 1, guide pad 2, external mold tie rod 3, external mold side plate 4, interior die cap plate 5, regulation bolt
6, external mold frame 7, limited block 8, plate washer 9, castor 10, oil sump 11, guide rail 12, drag Kun 13, depanning frame 14, interior baffle plate 15,
Nut square tube 16, side plate square tube 17, pull bar 18, left-handed nut 19, base plate sizing beam 20, right-handed nut 21, cover plate support bar 22,
Cover plate support bar 23, external mold lower plate 24, sealing strip 25, interior mould back side panel 26, interior mould front side board 27, cover plate support bar connecting rod 28,
Cover plate support bar hinge.
Detailed description of the invention
Below in conjunction with the accompanying drawings, by embodiment, the present invention is further described.
Embodiment:
See Fig. 1, the shake casting machine for manufacturing building gas flue include handle, internal mold organization, outer mold mechanism, external mold frame 7,
Depanning frame 14, vibration pump, resilient support form.External mold frame 7 supports outer mold mechanism, and outer mold mechanism is enclosed within outside internal mold organization
Side, gas flue forms in folded region between inside and outside mold mechanism.The length of depanning frame 14 is identical with external mold, is positioned at external mold machine
Structure afterbody, is provided with castor 10 below and is perpendicular to the guide rail 12 of frame length direction.
See Fig. 1, Fig. 2 and Fig. 4, the length direction of internal mold organization with shake casting machine length direction consistent, left and right two ends by
Plate washer 9 is supported in outer mold mechanism.Interior die cap plate 5 and Nei Mo lower plate 15 constitutes the outer wall of interior mould, and interior die cap plate 5 is positioned at mould
Top, the two ends of its width are turned under 45 degree, and interior mould lower plate 15 is " U " font, and the top at its left and right two ends is to inflection 45
Degree, the lower crook with interior die cap plate 5 width two ends forms dynamic cooperation, and support internal mould cover plate respectively, and arranged on left and right sides is vertical
The medial surface of panel is fixed with side plate square tube 17.
Seeing Fig. 2, the left end of center screw mandrel 1 stretches out interior mould, and right-hand member runs through both sides in the middle of interior die wall, right-hand member and is provided with screw rod,
It is respectively at left hand thread and right-handed thread, with left hand thread to be combined with at left-handed nut 19 and right-handed thread and is combined with dextrorotation
Nut 21.The outer side of left and right spin nut is fixed with nut square tube 16, and square tube 16 is enclosed within the foreign side of center screw mandrel 1.
Seeing Fig. 2 and Fig. 3, interior mould Inner elongate degree direction is symmetrically fixed with the pull bar 18 that many groups are in opposite direction, pull bar 18
One end is passed through in the nut square tube 16 that hinge 23 is fixed on outside centre bore, and the other end is fixed on interior mould lower plate 15 both sides vertical plane
In side plate square tube 17.
Seeing Fig. 2, the inside of interior mould is provided with many group cover plate support bars 22, its lower end and the cover plate being positioned on baffle plate 15
Support bar hinge 29 is connected, and the upper end of support bar 22 supports interior die cap plate 5.Each support bar 22 is by cover plate support bar connecting rod 28
It is connected.
See Fig. 4, when internal model structure launches, baffle plate 15 in interior mould back side panel 26 and Nei Mo front side board 27 is vertical.See
Fig. 6, baffle plate 15 in now cover plate steady arm 22 is vertical.The outer wall shape of internal model structure is identical with gas flue inwall.See figure
8, now pull bar 18 is bigger with the angle of center screw mandrel 1 axis.
When internal model structure shrinks, center of rotation screw mandrel 1, see Fig. 9, left-handed nut 18 and right-handed nut 21 move toward one another,
Driving pull bar 18 by nut square tube 16, see Fig. 5, now pull bar 18 diminishes with the angle of central hair rod axis, on rear side of interior mould
Plate 26 and Nei Mo front side board 27, with both sides, lower section as axis of rotation, tilts inwards, sees Fig. 7, draws to the right cover plate support bar connecting rod
28, with cover plate support bar hinge 29 as center of rotation, cover plate support bar 22 is tilted to the right, short transverse reduce, interior die cap plate 5 to
Lower movement,.Interior die wall is departed from, convenient extraction smoke-air duct product with gas flue finished product.
Seeing Figure 10, external mold is made up of external mold side plate 4 and mold bottom plate 24, and side plate has forward and backward two pieces, and top is open.Outward
Die sleeve is in the foreign side of interior mould, by plate washer 9 support internal mould at forward and backward two ends.The lower section of external mold side plate 4 and the connection of mold bottom plate 24
Place is provided with sealing strip 25, with mortar leakage prevention.It is arranged over external mold tie rod 3, with fixing external mold side plate.
Seeing Figure 11, external mold frame is long frame-like, and length direction one end is head, and the other end is afterbody, the two of frame
End is provided with guide pad 2, bearing and limited block 8.Bearings external mold, and make external mold can adjusting position in the width direction,
Limited block limits the extreme position of external mold.Guide pad has guide effect when installing external mold.Corner, bottom and both sides, middle part
Being respectively equipped with resilient support, vibration pump is arranged on bottom frame.
Seeing Fig. 1, depanning frame 14 is arranged over multiple torr Kun 13, and left end is provided with oil groove 11 so that gas flue is at torr Kun
Preferably moving on 13, the lower section of depanning frame 14 is provided with roller 10, and roller 10 is arranged on guide rail 12.After the gas flue demoulding with
Depanning frame 14 moves on to other positions until being completely dried.
The operation principle of apparatus of the present invention is described as follows:
The interior die cap plate 5 in internal mold organization, interior mould lower plate 15 is made to be in the extreme position of expansion by center of rotation screw mandrel 1, as
Shown in Fig. 4.In the middle of Nei Mo and external mold, it is inserted in steel wire or strengthens grid cloth, opening vibration pump, falling at the top of shake casting machine
Entering cement mortar, the vibrations of vibration pump make cement mortar be uniformly distributed and are wrapped in steel wire or strengthen grid cloth, close vibrations
Cement mortar after pump, above manual floating interior die cap plate 5.
When cement mortar partly solidifies, center of rotation screw mandrel 1, under the effect of center screw mandrel left hand thread and right-handed thread,
The left-handed nut 19 and the right-handed nut 21 that screw mutually and be welded thereon nut square tube 16 and make linear motion in opposite directions, drive
Pull bar 18, the both sides vertical panel of interior mould lower plate 15 with lower section for axial rotary lira so that interior mould short transverse reduces,
Under the effect of gravity, the interior downward landing of die cap plate, gas flue finished product is isolated from interior mould inwall.In going out of depanning frame 14
The one end in mould direction is provided with oil sump 11, and torr Kun 13 being positioned at oil sump 11 is wrapped with gauze, and the lower end of torr Kun 13 is immersed in oil sump 11
In, under the rotation of torr Kun 13, constantly bottom lubrication gas flue so that gas flue preferably rolls on other torr Kun 13.
When gas flue finished product is fully drawn out in depanning frame 14, move depanning frame 14 to other positions by guide rail 12
Until gas flue is completely dried.
Claims (10)
1. two panels scalable interior mould gas flue shake casting machine, including head, frame, internal mold organization, outer mold mechanism, vibration pump, machine
Frame is long frame-like, and length direction one end is head, and the other end is afterbody, and the corner, bottom of frame and middle part are respectively provided on two sides with
Resilient support, vibration pump is arranged on bottom frame；It is characterized in that: the internal mold organization of described shake casting machine is by shaping mechanism and contraction
Mechanism forms, and wherein shaping mechanism is formed inside cavity by two pieces of panels of baffle plate in die cap plate (5) in " one " font and " U " type,
The downward flange of dual-side of interior die cap plate (5), the upper end flanging inwards of the two of baffle plate vertical sides in " U " type, with interior mould
The lower flange of cover plate (5) constitutes dynamic cooperation；
The contracting mechanism of described shake casting machine internal mold organization is by center screw mandrel (1), nut square tube (16), nut and pull bar (18) group
Become；
Center screw mandrel (1) middle is provided with two sections of oppositely oriented screw threads, it has nut screw therewith, left and right two nuts
Square tube (16) is respectively fitted over the two ends of center screw mandrel (1), and links together with the end face of nut, the both sides of nut square tube (16)
Face is hinged with the multipair pull bar (18) being front and back arranged symmetrically with, and the other end of pull bar (18) is hinged with the vertical side of interior baffle plate,
The pull bar (18) being connected on two nut square tubes (16) is arranged symmetrically with；
Two pieces of external mold side plates (4) of described shake casting machine outer mold mechanism and the junction of external mold lower plate (24) are provided with sealing strip (25).
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that baffle plate in " U " type
It is made up of with interior mould front side board (27) the interior baffle plate (15) of horizontal direction and the interior mould back side panel (26) of vertical direction.
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that: inside internal mold organization
Vertical direction is provided with two to above cover plate steady arm (22).
Two panels the most according to claim 2 scalable interior mould gas flue shake casting machine, it is characterised in that: vertical direction interior
It is respectively equipped with ribs on mould back side panel (26) and interior mould front side board (27).
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that: pull bar (18) is flat
Bar.
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that: center screw mandrel (1)
Screw thread at middle two is respectively left hand thread and right-handed thread.
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that: with center screw mandrel
(1) nut that left hand thread on and right-handed thread screw is respectively left-handed nut and right-handed nut.
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that: sealing strip (25) passes through
Wear whole outer mold mechanism.
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that: described frame two ends
It is provided with guide pad (2).
Two panels the most according to claim 1 scalable interior mould gas flue shake casting machine, it is characterised in that: depanning frame
(14) oil sump (11) it is provided with.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764297 | 2015-11-11 | ||
| CN2015107642973 | 2015-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106142332A true CN106142332A (en) | 2016-11-23 |
| CN106142332B CN106142332B (en) | 2018-03-16 |
Family
ID=57344282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610744793.7A Active CN106142332B (en) | 2015-11-11 | 2016-08-29 | The scalable internal model gas flue shake casting machine of two panels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106142332B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984000188A1 (en) * | 1982-06-22 | 1984-01-19 | Terje Frank Bru | Chimney flue with ventilator means |
| CN202062501U (en) * | 2011-05-04 | 2011-12-07 | 周柏伟 | Automatic residence flue production device |
| CN202137826U (en) * | 2011-01-28 | 2012-02-08 | 陕西理工学院 | Flue gas channel precasting and moulding pouring machine |
| CN202716356U (en) * | 2012-06-15 | 2013-02-06 | 苏州千瑞机电科技有限公司 | Machine for producing flue-gas channel |
| CN203738986U (en) * | 2014-03-19 | 2014-07-30 | 朱德红 | Improved flue duct vibration casting machine |
| CN204094908U (en) * | 2014-09-03 | 2015-01-14 | 徐州共进机械有限公司 | A kind of internal-suction type circle internal mold flue forming machine |
| CN206048495U (en) * | 2015-11-11 | 2017-03-29 | 朱志强 | The scalable internal model gas flue of two panels shakes casting machine |
-
2016
- 2016-08-29 CN CN201610744793.7A patent/CN106142332B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984000188A1 (en) * | 1982-06-22 | 1984-01-19 | Terje Frank Bru | Chimney flue with ventilator means |
| CN202137826U (en) * | 2011-01-28 | 2012-02-08 | 陕西理工学院 | Flue gas channel precasting and moulding pouring machine |
| CN202062501U (en) * | 2011-05-04 | 2011-12-07 | 周柏伟 | Automatic residence flue production device |
| CN202716356U (en) * | 2012-06-15 | 2013-02-06 | 苏州千瑞机电科技有限公司 | Machine for producing flue-gas channel |
| CN203738986U (en) * | 2014-03-19 | 2014-07-30 | 朱德红 | Improved flue duct vibration casting machine |
| CN204094908U (en) * | 2014-09-03 | 2015-01-14 | 徐州共进机械有限公司 | A kind of internal-suction type circle internal mold flue forming machine |
| CN206048495U (en) * | 2015-11-11 | 2017-03-29 | 朱志强 | The scalable internal model gas flue of two panels shakes casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106142332B (en) | 2018-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206048495U (en) | The scalable internal model gas flue of two panels shakes casting machine | |
| CN108565080B (en) | A kind of circuit on power system insulator molding making auxiliary machining device | |
| CN103691889B (en) | A kind of core holder of whole sand core of swing bolster | |
| CN102198693A (en) | Sectional box beam hydraulic internal mold | |
| CN106142332A (en) | Two panels scalable interior mould gas flue shake casting machine | |
| CN201669775U (en) | Internal mold adjusting mechanism of prefabricated U-shaped concrete beam | |
| CN202716356U (en) | Machine for producing flue-gas channel | |
| CN208230797U (en) | A kind of easy-to-mount mold | |
| CN203889773U (en) | Spinning support | |
| CN212885676U (en) | Reinforcement cage seam welder | |
| CN202192681U (en) | Internal mold suspension system for aqueduct mold | |
| CN102248599B (en) | Inner mould hanging system for aqueduct mould | |
| CN203228222U (en) | Stock support | |
| CN209190246U (en) | A kind of mold hard rail of machining center | |
| CN202031604U (en) | Flexible side formwork retracting mechanism for tunnel lining cars | |
| CN209599476U (en) | A kind of sleeper mould | |
| CN104015325A (en) | Heat-shrink tube processing equipment | |
| CN206860201U (en) | adjustable widened section | |
| CN202202872U (en) | Railway tunnel lining jacking frame | |
| CN106276033B (en) | A kind of process units of steel pipe self-emptying lubrication | |
| CN201952740U (en) | Hydraulic inner die of asymmetric box girder | |
| CN205201650U (en) | Pipe support frame | |
| CN205705298U (en) | A kind of rubber roll shaped device | |
| CN219788741U (en) | Precast concrete member rough surface forming tool | |
| CN205289670U (en) | Simple and easy variable speed is bulging makes machine from core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |