CN1467068A - Method and apparatus for producing integral hollow wallboard - Google Patents
Method and apparatus for producing integral hollow wallboard Download PDFInfo
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- CN1467068A CN1467068A CNA021351848A CN02135184A CN1467068A CN 1467068 A CN1467068 A CN 1467068A CN A021351848 A CNA021351848 A CN A021351848A CN 02135184 A CN02135184 A CN 02135184A CN 1467068 A CN1467068 A CN 1467068A
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Abstract
A process for manufacturing the integral hollow wall slab includes such steps as pouring liquid mixture in a mould to form the first slurry layer, arranging the reinforcing material in the mould, putting several hollow filler cores in it in parallel mode at intervals, pouring said liquid mixture to form the second slurry layer, arranging the reinforcing material, solidifying and demoulding. Its production apparatus is also disclosed.
Description
Technical field
The invention belongs to a kind of method and apparatus of producing building element, relate in particular to a kind of method and apparatus of producing integral hollow wallboard.
Background technology
In building trade, traditional wallboard mode of constructing is to adopt common brick to be built into, and along with country bans use of the enforcement of clay burned brick decree, the use of common brick is under an embargo.Along with the continuous development of building trade, for satisfying the very big demand and the environmental protection requirement of building materials market, a kind of building integral hollow wallboard that is made by compound cast and adding reinforcing material has appearred.The patent No. that on August 29th, 1996 announced is production method and the equipment thereof that 95197678.8 patent of invention specifications disclose a kind of hollow building wall board, this wallboard has the first and second relative outer walls, they interconnect by a plurality of isolated webs along horizontal expansion, above-mentioned web and above-mentioned outer wall be common to constitute cavity between the relative side of above-mentioned molded wallboard, and this method comprises the steps:
(a) lay the 1st layer in elongated plates shape mould, it forms by being preferably the liquid pourable compound that gypsum and water forms, so that form first outer wall;
(b) in above-mentioned mould, lay reinforcing material, such as the glass rove layer;
(c) with a plurality of that be parallel to each other, with the isolated dismountable insert of small distance be inserted in the mould relatively vertically between the side, above-mentioned insert is along the horizontal expansion of mould, make above-mentioned insert be supported in following state, bottom surface at the bottom surface of this state insert and mould is spaced apart, and the space between the adjacent insert forms the inside die cavity of above-mentioned web;
(d) pour into the 2nd of q.s in mould and pull on the liquid pourable compound of stating, so that the space between the insert is filled, and at the above-mentioned insert end face formation second layer, so that form the 2nd outer wall, the outer surface of above-mentioned insert forms the internal mode surface;
(e) once more with reinforcing material, join in the 2nd gypsic horizon such as glass rove, and in the space between the insert;
(f) make the liquid pourable compound sclerosis that is arranged in mould;
(g) inner insert is withdrawn from from mould from the side direction along continuous straight runs by mechanical device;
(h) will include by transversal web and connect the hollow wall panel that the formation of the 1st and the 2nd relative outer wall is good and mould disengagement.
Comprising following equipment:
(a) elongated plates shape mould, this mould are supported on the mobile transfer cart removably, and this transfer cart vertically moves along track;
(b) liquid gypsum feed hopper, it be used for mould from its below by the time above-mentioned liquid gypsum is discharged into mould;
(c) be supported in the reinforcing material feeder of above-mentioned track top, it be used for mould from its below by the time reinforcing material sent into mould;
(d) insert inserts device, it is used for opening with less intervals a plurality of, mutually the removable insert of keeping parallelism is inserted in the mould, so that it is extended between the relative side of mould, the space between this moment adjacent insert is formed for forming the inside die cavity of the web of above-mentioned wallboard;
(e) in the following manner above-mentioned insert is supported in the device of above-mentioned mould inside, this mode is: the bottom surface of above-mentioned insert and the bottom surface of mould are spaced apart;
(f) insert is withdrawn from device, and it is used for from the side direction along continuous straight runs insert being withdrawn from from mould;
(g) molded good hollow wall panel after will hardening and the mould device of throwing off.
Adopt said method and device fabrication wallboard, process is more loaded down with trivial details, in order to form the cavity of wallboard inside, in process of production, not only needs the insertion of insert, and needs withdrawing from of insert; Simultaneously required production equipment more complicated not only needs the insertion device of insert, and needs the device of withdrawing from of insert, needs its cost very high; In addition, the wallboard of taking said method and device fabrication for satisfying the requirement of insulation, need increase insulation material on the one hand again when doing the exterior wall use, increased the workload of constructing; In the process that the concrete of pouring into a mould in the cavity of hollow wall panel is at the construction field (site) solidifying, wallboard is risen brokenly on the other hand, causes wallboard to be scrapped, and makes troubles to construction.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, simple wallboard manufacture method of a kind of technology and corresponding production equipment are provided.
For achieving the above object, the present invention includes following step:
(1) liquid compound is cast in the mould, forms the ground floor slurry of wallboard;
(2) arrange reinforcing material in the mould, and this reinforcing material is mixed with the ground floor slurry;
(3) arrange filled core in the mould, this filled core is a hollow type, and its length is consistent with the width of mould, and is spaced equably along the length direction of mould;
(4) liquid compound is cast in the mould, forms the second layer slurry of wallboard, and fills the space between the filled core;
(5) arrange reinforcing material in the mould, and this reinforcing material is mixed with slurry between second layer slurry and the filled core;
(6) sclerosis, the demoulding.
The position of reserving door and window in step (1) before in mould is provided with base plate, and between step (3), (4), it is framed that corresponding base plate place is provided with door and window, and in the process of step (4), liquid compound is cast in the framed mould in addition of door and window; Between step (5), (6), second layer slurry is strengthened the processing of case hardness and fineness.
Between step (5), (6), in mould, place infill panel, its length is consistent with the width of mould, and the length direction along mould is spaced equably, the central authorities of the corresponding filled core in its gap repeat the step of (4), (5) then, form the 3rd layer of slurry that is mixed with reinforcing material; In step (6) before, the 3rd layer of slurry strengthened the processing of case hardness and fineness.
For realizing said method, the present invention also provides a kind of production equipment of integral hollow wallboard, and it comprises: pair of tracks; The wallboard shaped platform, this platform setting is provided for the wallboard forming mould in orbit on it, wallboard size Selection adjusting device is set on this mould; Conveyer, this conveyer setting and are positioned at an end of wallboard shaped platform in orbit, and it is used to carry filled core, and conveyer is a belt conveyor, and its end is provided with positioner; Packing material is arranged car, and this packing material arranges that car is gantry shape, track-movable, and it is used for packing material is arranged in the mould, and packing material arranges that car is provided with lowering or hoisting gear, and this device is provided with the mechanism of clamping packing material; Material distributing machine, this material distributing machine are gantry shape, track-movable, and it is used for liquid slurry and reinforcing material are arranged in the mould, on material distributing machine or packing material layout car the surfaces of wall treating apparatus is set; Stripper apparatus is used for wallboard and mould separating with sclerosis.
After having adopted said method and equipment,, production procedure and production equipment have been simplified owing to saved the insertion of insert and withdrawn from step and complicated insert inserts and withdraws from device; Since in the internal placement of wallboard the filled core of hollow, so the inside of wallboard still can form internal cavities, so both can be used as interior wall and used, also can be used as exterior wall and use; Because the filled core of hollow adopts expanded material, thereby makes wallboard have insulation, sound insulation, function of seismic resistance, all promising policy the needs of building, exempted the operation that insulation material is set in the work progress; Because the filled core that cavity is the flexible foaming material to be made is formed, in the process that the concrete of pouring into a mould in the cavity of hollow wall panel is solidifying, wallboard is difficult for being risen brokenly at the construction field (site).
Description of drawings
Fig. 1 is the structural representation that adopts the wallboard one that the present invention produced;
Fig. 2 is the structural representation that adopts the wallboard two that the present invention produced;
Fig. 3 is for adopting the structural representation of the wallboard three that the present invention produced;
Fig. 4 is for adopting the structural representation of the wallboard four that the present invention produced;
Fig. 5 is the structural representation of conveyer;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 arranges the structural representation of car for packing material;
Fig. 8 is the vertical view of Fig. 7;
Fig. 9 is the structural representation of material distributing machine;
Figure 10 is the vertical view of Fig. 9;
Figure 11 is the structural representation of mould;
Figure 12 is a die size adjusting device structural representation;
Figure 13 is a cover production equipment schematic diagram;
Figure 14 is the vertical view of Figure 13;
Figure 15 is the layout of production line of the present invention;
Figure 16 is the vertical view of Figure 15.
The specific embodiment
As Figure 13, shown in Figure 14, packing material layout car 41 and material distributing machine 42 that a cover production equipment of the present invention comprises track 40 and is arranged on conveyer 44, wallboard shaped platform 43 and the mould in the track 40 and can moves on track 40.
A whole set of production equipment arranges that along pair of parallel track 40 be provided with wallboard shaped platform 43 in the position of wallboard moulding, the wallboard shaped platform is provided with 43 in track 40, and wallboard shaped platform 43 is provided with the used mould of wallboard moulding.
The structure of wallboard mould as shown in figure 11, it comprises the parallel relatively end wall of rectangle base plate 29, two 30,31, two mutual parallel roofs 32,33.The thickness of the degree of depth of end wall 30,31 and roof 32,33 and wallboard to be molded is basic identical, thus hinged their half-twists outwardly of end wall 30,31 and one of them roof 33 and base plate 29; There is an adjustable plate 38 outside of another one roof 32, makes the position-adjustable of roof 32, so just can produce the different wallboard of width by the roof 32 of regulating mould.Rectangle base plate 29 is the table top of wallboard shaped platform 43.The structure of the wallboard size Selection adjusting device on the mould as shown in figure 12, roof 32 outsides are fixed with perpendicular long bolt 45, it can form matched in clearance with the respective through hole on the adjustable plate 38 just, and long bolt 45 respectively has a nut in the both sides of adjustable plate 38; During actual the use, manually roof 32 is located, tighten two nuts, clamp adjustable plate 38, mould can use.
The structure of conveyer 44 is shown in Fig. 5,6, and expansion tightening wheel 14, preceding roller 16, back roller 12 are installed on the frame 15, and conveyer belt 13 leans on expansion tightening wheel 14 tensioners on roller, and block 11 is installed near the roller 12 of back.Packing material is arranged structure such as Fig. 7, shown in Figure 8 of car 41, the pulley 20 that can slide is equipped with in the bottom of vehicle frame 17 on track 40, the piston lower end that vertical cylinder 23, vertical cylinder 23 are installed on the vehicle frame 17 connects hoistable platform 18, and the locating piece 21 of horizontal cylinder 24, band sucker 19, the chute 22 of adjacent two locating pieces 21 of connection are housed on the hoistable platform 18.
The structure of material distributing machine 42 such as Fig. 9, shown in Figure 10, it is gantry shape, and the foot of frame 25 is provided with pulley 28, can be across moving on track 40.Also be provided with compound stirring and apparatus for pouring 26, surfaces of wall treating apparatus 39, fibre placement device 27 on the material distributing machine 42.
Be four kinds of structure of wall and the production method thereof that adopts that the present invention produces below.
With reference to Fig. 1, the wallboard one that adopts the present invention to produce is made up of following top layer 1, upper epidermis 5, muscle layer 2; Muscle layer 2 be provided with some that be parallel to each other, with the isolated filled core 6 of small distance; Wall board material be gypsum and water compound cast slurry and form as the long fibre mixing after-hardening of reinforcing material; Filled core 6 is the square-section tubulose bodies that adopt expanded material to make; Filled core 6 runs through whole wallboard along the panel width direction.
The production process of this wallboard is as follows:
1) prepares mould.End wall 30,31 and roof 33 are turn to cocked position and fixing, according to waiting that the size of making wallboard locates mould roof 32, tighten two nuts again, clamp adjustable plate 38, make the mould inside dimension corresponding with wallboard outside dimension to be made.Because die size is adjustable, can be molded into the wallboard of all size of different-thickness, different length, different in width, overcome a set of equipment only with the limitation of the wallboard of molded a kind of specification.
2) the following top layer 1 of making wallboard.Material distributing machine 42 moves to the top of wallboard shaped platform 43 along track 40, starts apparatus for pouring 26, moves to the other end by platform one end, in the translation process compound that stirs is cast on the mould, forms the ground floor slurry; Start fibre placement device 27 and counter motions then, the fiber of well cutting is scattered on the slurry on above-mentioned top layer 1 down; Can adopt artificial this moment or mechanical system is sneaked into fiber in the slurry, thereby form the following top layer 1 of wallboard; The mechanical system that fiber is sneaked in the slurry can be to adopt the inducting device that is arranged on material distributing machine or the packing material layout car to realize.
3) carry filled core.Thereby the rotation of the driven by motor roller above the conveyer 44 drive is moved around the conveyer belt 13 on the roller, conveyer belt 13 drives the filled core 6 that manually is placed on machine front and moves backward, first filled core stops after being blocked by block 11, second filled core also stops after moving to and being blocked by first filled core, the rest may be inferred, on conveyer belt 13, be covered with quantification be parallel to each other, abut against together one row filled core 6.
4) arrange filled core.Packing material arranges that car 41 moves to the position of conveyer 44 along track 40, the piston of vertical cylinder 23 promotes hoistable platform 18 and descends, each locating piece 21 on the hoistable platform 18 with sucker 19 drop on just on the filled core 6 of arranging, all filled cores 6 are held, vertical cylinder 23 drives hoistable platform 18 again and inhales superincumbent filled core 6 and rises, arrange that at packing material car 41 slides in the process of wallboard shaped platform 43 positions along track 40, horizontal cylinder 24 actions, each locating piece 21 along continuous straight runs is drawn back certain spacing, the restriction of chute 22 makes locating piece 21 to locate exactly, and the filled core 6 that sucker 19 is held on the locating piece 21 has also been decided the position exactly like this.After packing material arranged that car 41 slides into the top position of wallboard shaped platform 43, vertical cylinder 23 promoted hoistable platform 18 and descends, and filled core 6 is dropped on the mould that arranges down top layer 1.Afterwards, vertical cylinder 23 rises, because the bonding force between top layer 1 and the obturator 6 adds the suction of the gravity of filled core 6 greater than sucker 19 down, filled core 6 just is spaced abreast along the length direction of mould and has been arranged in the mould.Reinforcing material layout car 41 is removed then.
5) make muscle layer 2 and upper epidermis 5.Material distributing machine 42 moves to wallboard shaped platform top once more, starts compound apparatus for pouring 26 liquid compound is cast in the mould, forms the second layer slurry of wallboard, and fills the space between the filled core 6; Start fibre placement device 27 and arrange fibers, it fully mixes the gusset layer 2 and the upper epidermis 5 of back formation wallboard with the slurry between second layer slurry and the filled core; Hybrid mode is with 2).
6) surface treatment.Start the surfaces of wall treating apparatus 39 that is arranged on the material distributing machine, upper epidermis 5 is carried out painted processing, increase its hardness and fineness, form enhancement layer 10.
7) demoulding.After the wallboard sclerosis of moulding, open sidewall 30,31, the roof 33 of mould, carry out the demoulding with stripper apparatus.
Embodiment 2
Fig. 2 has provided the structure of the wallboard two that adopts the present invention's production, compares with wallboard one, is provided with door opening 9, window opening 8 in the wallboard.
When producing, in step 2) precalculated position is provided with window opening base plate 34, door opening base plate 35 in mould before; Before step 5), corresponding base plate 34,35 is provided with framed 37, the window opening framed 36 of door opening respectively.Other step is identical with embodiment 1 with equipment.
Carry out step 2) and 5) time, liquid compound can only be cast in door and window base plate and the framed mould in addition of door and window, does not have muscle layer and upper epidermis in the position of reserving door and window; When waiting to solidify the demoulding, with the door and window base plate with door and window is framed takes off, and remove the filled core of door and window base plate corresponding position, thereby make the wallboard after the moulding that door opening 9 and window opening 8 arranged.
In actual fabrication, a possibility reservation window is perhaps only left a door unlocked in advance on the wallboard, also may leave a door unlocked in advance and window simultaneously.
Embodiment 3
What Fig. 3 provided is the structure that adopts the wallboard three of the present invention's production, compare with embodiment 1, it has increased intermediate layer 3 and has filled flaggy 4, and infill panel is identical with filled core length, length direction along mould is spaced equably, and its gap is corresponding with the center line of filled core 6.
During production, between step 5), step 6), repeating step 3), 4), 5), promptly use the method and apparatus identical to carry and arrange one deck infill panel 7 and then pour into a mould compound one time with arranging filled core 6, just formed filling flaggy 4 and upper epidermis 5.When arranging infill panel 7 its length direction along mould is spaced equably, the center line of corresponding filled core 6 in the middle of its gap.
Other step is identical with embodiment 1 with equipment.
Embodiment 4
Fig. 4 is the structure that has reflected the wallboard four that adopts the present invention's production, it has the design feature of wallboard two and wallboard three simultaneously, promptly with wallboard one relatively, it has increased intermediate layer 3 and has filled flaggy 4, fills in the flaggy 4 along the wallboard length direction and is provided with some spaced apart and infill panels 7 of being parallel to each other; From the wallboard top, the center line of corresponding filled core 6 in the middle of the gap between the infill panel; Be provided with door opening 9, window opening 8 in the wallboard.
During actual production, in step 2) position of reservation door and window is provided with window opening base plate 34, door opening base plate 35 in mould before; Before step 5, corresponding base plate 34 places are provided with that door opening is framed 37, window opening is framed 36, and like this when carrying out step 5), liquid compound can only be cast in the mould of door and window beyond framed, and the wallboard of Xing Chenging has just had the door and window hole like this.After step 5), repeating step 3), 4), 5), promptly use way and the equipment identical to arrange one deck infill panel 7 again with arranging filled core 6; And then pour into a mould compound one time, just formed filling flaggy 4 and upper epidermis 5.When arranging infill panel 7 its length direction along mould is spaced equably, the center line of the corresponding filled core 6 in the centre in its gap.
Other step of making wallboard four is identical with the step of making wallboard one.
In actual production process, in order to enhance productivity, make full use of equipment, making, setting time according to wallboard can adopt multiple devices, and intersection is carried out, and forms the production line of an optimization, and Figure 15, Figure 16 have reflected a production line.3 on this production line party-wall sheet metal forming platform is represented with P1, P2, P3 respectively; 3 of conveyers are represented with T1, T2, T3 respectively; Arranged crosswise is in orbit successively for platform and conveyer.Respectively one of packing material layout car 41 and material distributing machine 42, wherein material distributing machine has four stop places between conveyer and platform, represents with W1, W2, W3, W4 respectively.They are followed successively by T1, W1, P1, T2, W2, P2, T3, W3, P3, W4 along track arrangement.The original state packing material of work arrange car 41 be positioned at T1 above, material distributing machine 42 is positioned at input place of slurry, this position can be arranged on W2 or W3, is example with W2.The course of work following (is example with wallboard one):
1, at first carries out molded on platform P1.
1) material distributing machine 42 is moved to P1 by W2, arrive and to continue to move ahead casting mixture simultaneously behind the P1 top, the ground floor slurry is laid the back that finishes and is arrived W1, arranges reinforcing material when oppositely moving back to the P1 top then, get back to W2 at last, artificial or machinery mixes reinforcing material with slurry;
2) packing material is arranged that car 41 is set out by T1 and is carried packing material and move to platform P1, arrives back, P1 top and places packing material, returns the T1 top then;
3) step material distributing machine 42 repetitions 1) is got back to W2 at last, and first wallboard moulding treats that it solidifies.
2, carry out molded on platform P2.
After finishing first prefabricated board, arrange that car 41 and cloth truck 42 lay respectively at T1, W2, will arrange that car 41 moves to T2.
1) cloth truck 42 through the P2 casting mixture, arrives W3, the layout of turning back then reinforcing material by W2.Arrive W2, but do not stop, turn back to W3;
2) packing material is arranged that car 41 is set out by T2 and is carried packing material and move to platform P2, arrives back, P2 top and places packing material, returns the T2 top then;
3) cloth truck 42 is got back to W2 by W3, then through the P2 casting mixture, arrives W3, and the layout of turning back afterwards reinforcing material arrives W2 at last, and second prefabricated board moulding treats that it solidifies.
3, carry out molded on platform P3.
After finishing second prefabricated board, arrange that car 41 and cloth truck 42 lay respectively at T2, W2.
1) cloth truck 42 moves the casting mixture through P3 by W2, arrives W4, and the layout of turning back then reinforcing material arrives W3, but do not stop, and turns back to W4;
2) packing material is arranged that car 41 is set out by T2 and is carried packing material to T3 and move to platform P3, arrives back, P3 top and places packing material, returns the T2 top then;
3) cloth truck 42 is got back to W2 by W4, then through the P3 casting mixture, arrives W4, and the layout of turning back afterwards reinforcing material arrives W2 at last, and the 3rd prefabricated board moulding treats that it solidifies.
After the 3rd prefabricated board moulding, first prefabricated board solidifies the demoulding just, repeats abovementioned steps again, thereby increases work efficiency to greatest extent.
Conveyer also can have only one or two in the above-mentioned production line, packing material layout car is all supplied three platforms respectively from this conveyer clamping packing material, though packing material arranges that the walking path of car is longer like this, can save conveyer, thereby reduce cost.
Claims (10)
1. method of producing integral hollow wallboard, it comprises the steps:
(1) liquid compound is cast in the mould, forms the ground floor slurry of wallboard;
(2) in mould, arrange reinforcing material, this reinforcing material is mixed with the ground floor slurry;
(3) in mould, arrange a plurality of that be parallel to each other, with the filled core that less intervals is opened, its length direction along mould is arranged, this filled core is a hollow type, its length is consistent with the width of mould;
(4) liquid compound is cast in the mould, forms the second layer slurry of wallboard, and fill the space between the filled core;
(5) in mould, arrange reinforcing material, and this reinforcing material is mixed with slurry between second layer slurry and the filled core;
(6) sclerosis, the demoulding.
2. the method for production integral hollow wallboard according to claim 1, it is characterized in that the position of reserving door and window in step (1) before in mould is provided with base plate, between step (3), (4), it is framed that corresponding base plate place is provided with door and window, in the process of step (4), liquid compound is cast in the framed mould in addition of door and window.
3. the method for production integral hollow wallboard according to claim 1 and 2, it is characterized in that between step (5), (6), in mould, arrange infill panel, its length is consistent with the width of mould, and the length direction along mould is spaced equably, the central authorities of the corresponding filled core in its gap repeat the step of (4), (5) then, form the 3rd layer of slurry that is mixed with reinforcing material.
4. the method for production integral hollow wallboard according to claim 1 and 2 is characterized in that between step (5), (6) second layer pulp surface being handled, and strengthens case hardness and fineness.
5. the method for production integral hollow wallboard according to claim 3 is characterized in that in step (6) before, and the 3rd layer of pulp surface handled, and strengthens case hardness and fineness.
6. equipment of producing integral hollow wallboard, it comprises pair of tracks, it is characterized in that it also comprises:
(1) the wallboard mould that is provided with on platform and the platform, this platform setting is in orbit;
(2) conveyer, this conveyer setting and are positioned at an end of wallboard shaped platform in orbit, and it is used to carry packing material;
(3) packing material is arranged car, and this layout car is gantry shape, track-movable, and it is used for packing material is arranged in the mould;
(4) material distributing machine, this material distributing machine are gantry shape, track-movable, and it is used for liquid slurry and reinforcing material are arranged in the mould;
(5) stripper apparatus is used for wallboard and mould separating with sclerosis.
7. the equipment of production integral hollow wallboard according to claim 6 is characterized in that the mould on the wallboard shaped platform is provided with wallboard size Selection adjusting device.
8. according to the equipment of claim 6 or 7 described production integral hollow wallboards, it is characterized in that conveyer is a belt conveyor, its end is provided with positioner.
9. the equipment of production integral hollow wallboard according to claim 8 is characterized in that packing material layout car is provided with lowering or hoisting gear, and this device is provided with the mechanism of clamping packing material.
10. the equipment of production integral hollow wallboard according to claim 9 is characterized in that it also comprises the surfaces of wall treating apparatus, and this device is arranged on material distributing machine or packing material is arranged on the car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021351848A CN1176791C (en) | 2002-07-10 | 2002-07-10 | Method and apparatus for producing integral hollow wallboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021351848A CN1176791C (en) | 2002-07-10 | 2002-07-10 | Method and apparatus for producing integral hollow wallboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1467068A true CN1467068A (en) | 2004-01-14 |
| CN1176791C CN1176791C (en) | 2004-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021351848A Expired - Fee Related CN1176791C (en) | 2002-07-10 | 2002-07-10 | Method and apparatus for producing integral hollow wallboard |
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| CN (1) | CN1176791C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569618A (en) * | 2013-11-06 | 2014-02-12 | 上海市建筑装饰工程集团有限公司 | Production line for machining wall ground decoration modules |
| CN104385452A (en) * | 2014-09-30 | 2015-03-04 | 三一汽车制造有限公司 | Precast-concrete producing system and method |
| CN104441198A (en) * | 2014-10-27 | 2015-03-25 | 滁州市中诺设备模具制造有限公司 | Hollow gypsum block forming process |
| CN109109128A (en) * | 2017-06-22 | 2019-01-01 | 株式会社泰明实业 | Using the hollow slab process units of the wet type of ethylene tube and utilize its production method |
-
2002
- 2002-07-10 CN CNB021351848A patent/CN1176791C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569618A (en) * | 2013-11-06 | 2014-02-12 | 上海市建筑装饰工程集团有限公司 | Production line for machining wall ground decoration modules |
| CN104385452A (en) * | 2014-09-30 | 2015-03-04 | 三一汽车制造有限公司 | Precast-concrete producing system and method |
| CN104441198A (en) * | 2014-10-27 | 2015-03-25 | 滁州市中诺设备模具制造有限公司 | Hollow gypsum block forming process |
| CN109109128A (en) * | 2017-06-22 | 2019-01-01 | 株式会社泰明实业 | Using the hollow slab process units of the wet type of ethylene tube and utilize its production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1176791C (en) | 2004-11-24 |
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