JP2958147B2 - Mortar kneading sprayer for low-rise houses - Google Patents
Mortar kneading sprayer for low-rise housesInfo
- Publication number
- JP2958147B2 JP2958147B2 JP8191391A JP8191391A JP2958147B2 JP 2958147 B2 JP2958147 B2 JP 2958147B2 JP 8191391 A JP8191391 A JP 8191391A JP 8191391 A JP8191391 A JP 8191391A JP 2958147 B2 JP2958147 B2 JP 2958147B2
- Authority
- JP
- Japan
- Prior art keywords
- mortar
- operating shaft
- kneading
- mixer cylinder
- screw pump
- 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.)
- Expired - Fee Related
Links
- 239000004570 mortar (masonry) Substances 0.000 title claims description 24
- 238000004898 kneading Methods 0.000 title claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は低層住宅のモルタル外壁
工事において、モルタルの粉体材料を連続的に規定量の
水で混練し、手元ノズルへ圧送したモルタルを圧縮空気
によって吹付け施工するモルタル混練吹付機に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mortar in which a mortar powder material is continuously kneaded with a specified amount of water, and the mortar pressure-fed to a hand nozzle is sprayed with compressed air in a mortar outer wall construction of a low-rise house. It relates to a kneading spray machine.
【０００２】[0002]
【従来の技術】従来の低層住宅のモルタル外壁工事で
は、左官工が専用の混練機で調製したモルタルをバケツ
に小分けし、工事対象の壁部へ人力またはウィンチ等で
運搬し、鏝板や鏝を用いて規定の厚さに塗り付けてい
る。しかしながら、この方式では作業能率が悪いだけで
なく、左官工の労力負担が大きくて、左官工への就労者
を減少させる一因にもなっている。2. Description of the Related Art In conventional mortar exterior wall construction for low-rise houses, plasterers divide mortar prepared by a dedicated kneading machine into buckets, transport the mortar to the wall to be constructed with human power or a winch, etc. Is applied to the specified thickness. However, this method not only has poor working efficiency, but also has a large labor burden on plasterers, which is one of the factors that reduces the number of workers in plasterers.
【０００３】中高層建築物のコンクリート表面調製材や
タイル下地材、耐火被覆材などの施工では、混練機で調
製したモルタルを圧送ポンプによって対象壁面の近くま
で送給し、左官工が鏝作業で壁面に塗り付けたり、圧縮
空気によって手元ノズルから吹き付けることが行われて
いる。しかしながら、混練機と圧送機を別個に用意して
組み合わせ使用する方式では、設備コストが嵩むだけで
なく、機器構成が複雑となり、機器の設置と運転準備が
煩雑であり、様々な工事で立て込んでいる工事現場に広
い設置スペースを確保しなければならない、という難点
がある。[0003] In the construction of concrete surface preparation materials, tile base materials, fire-resistant coating materials and the like of middle- and high-rise buildings, mortar prepared by a kneading machine is fed to the vicinity of the target wall by a pressure pump, and plastering is performed by a trowel. Or spraying from a hand nozzle with compressed air. However, the method of separately preparing and using the kneading machine and the pumping machine not only increases the equipment cost but also complicates the equipment configuration, and the installation and operation preparation of the equipment are complicated. There is a drawback in that a large installation space must be secured at the construction site.
【０００４】鉄鋼業界の一部では、取鍋の表面補修用吹
付材の施工において、粉体材料の投入と混練圧送を自動
的に行う方式が提案されている。しかしながら、この方
式では粉体材料の投入ホッパーから混練圧送機に至る間
に２台以上のモータを組み込んでいるため、機器構成が
大型となり、重量も人力では到底運搬不可能なものとな
っている。[0004] In a part of the steel industry, there has been proposed a method of automatically feeding and kneading and feeding a powder material in the application of a spray material for surface repair of a ladle. However, in this method, since two or more motors are incorporated between the powder material input hopper and the kneading / pumping machine, the equipment configuration becomes large and the weight cannot be transported by human power at all. .
【０００５】[0005]
【発明が解決しようとする課題】従って本発明の目的
は、簡略化された機器構成のために大幅に小型かつ軽量
化され、人力によっても容易に運搬できて、設置スペー
スの節減も可能であると共に、最適状態に混練され、気
泡除去された均質なモルタルを脈動なしに連続的に圧送
して吹付け施工できる、低層住宅用モルタル混練吹付機
を提供することである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to greatly reduce the size and weight of a device due to its simplified configuration, to be easily transported by human power, and to save installation space. It is another object of the present invention to provide a low-rise residential mortar kneading and spraying machine capable of continuously feeding and spraying a homogeneous mortar kneaded in an optimum state and from which bubbles have been removed without pulsation.
【０００６】[0006]
【課題を解決するための手段】以下、添付図面中の参照
符号を用いて説明すると、本発明の低層住宅用モルタル
混練吹付機では、モルタルの粉体材料が投入される漏斗
形ホッパー１の小径下端部にミキサーシリンダ２を縦長
に接続し、ミキサーシリンダ２の下部に偏心ねじポンプ
３を配置し、ホッパー１とミキサーシリンダ２の中心部
に貫通させた作動軸４の上端部にモータ５を接続し、ホ
ッパー１内にある部分の作動軸４に撹拌用翼板６を突設
し、ミキサーシリンダ２内にある部分の作動軸４に円周
方向と軸方向に間隔を置いて複数本の混練兼推進用スタ
ッド７を突設する。The mortar kneading and spraying machine for low-rise houses according to the present invention will be described below with reference to the reference numerals in the attached drawings. The mixer cylinder 2 is vertically connected to the lower end, the eccentric screw pump 3 is arranged below the mixer cylinder 2, and the motor 5 is connected to the upper end of the hopper 1 and the working shaft 4 that passes through the center of the mixer cylinder 2. Then, a stirring blade 6 is protruded from the working shaft 4 in the portion inside the hopper 1 and a plurality of kneaders are arranged on the working shaft 4 in the portion inside the mixer cylinder 2 at intervals in the circumferential direction and the axial direction. A propulsion stud 7 is protruded.
【０００７】作動軸４に偏心ねじポンプ３のロータ８を
接続し、作動軸４の下端部に送り込み用翼板９を直径方
向に固設し、送り込み用翼板９を偏心ねじポンプ３のス
テータ１０の入口部の真上に近接配置し、ミキサーシリ
ンダ２の上端部に所定量の混練用水が供給される注水口
１１を設け、偏心ねじポンプ３のステータ１０の出口部
にモルタルの圧送ホース１２を接続し、圧送ホース１２
の先端部に手元ノズル１３を接続し、エアーコンプレッ
サ１４からの圧縮空気の供給管１５を手元ノズル１３に
接続する。[0007] The rotor 8 of the eccentric screw pump 3 is connected to the operating shaft 4, a feed blade 9 is fixed to the lower end of the operating shaft 4 in the diameter direction, and the feed blade 9 is connected to the stator of the eccentric screw pump 3. The eccentric screw pump 3 is provided with a water injection port 11 for supplying a predetermined amount of kneading water at an upper end portion of the mixer cylinder 2. And the pressure feed hose 12
And a supply pipe 15 for compressed air from the air compressor 14 is connected to the hand nozzle 13.
【０００８】[0008]
【作用】所定割合に計量調合されたセメントと細骨材等
の粉体材料は、ホッパー１の上面開口部から投入され、
粉体材料に対応して適正に計量された混練用水は、注水
口１１からミキサーシリンダ２に供給される。粉体材料
は自重の作用とモータ５で回転駆動される撹拌用翼板６
の押下げ作用によって下方のミキサーシリンダ２へ順次
給送される。ホッパー１の小径下端部における粉体材料
のブリッジ現象は、撹拌用翼板６の掻き込み作用によっ
て阻止される。A powdered material such as cement and fine aggregate, which have been metered and prepared in a predetermined ratio, is introduced from the upper opening of the hopper 1, and
The kneading water appropriately measured corresponding to the powder material is supplied to the mixer cylinder 2 from the water inlet 11. The powder material is subjected to the action of its own weight and the stirring blades 6 which are rotated by the motor
Is sequentially fed to the mixer cylinder 2 below. The bridging phenomenon of the powder material at the lower end of the small diameter of the hopper 1 is prevented by the scraping action of the stirring blade 6.
【０００９】ミキサーシリンダ２の上端部において混練
用水と混合された粉体材料は、モータ５で回転駆動され
る作動軸４のスタッド７によって必要十分に混練されて
押下げられ、粉体材料に混入していた気泡は垂直配置の
ミキサーシリンダ２に沿って円滑に上昇し、ミキサーシ
リンダ２から排除される。ミキサーシリンダ２の下端部
に到達したモルタルは、モータ５で回転駆動される送り
込み用翼板９によってほぐされながら、偏心ねじポンプ
３のステータ１０の入口部に均一な練り状態で順次供給
される。The powder material mixed with the kneading water at the upper end of the mixer cylinder 2 is kneaded sufficiently and sufficiently by a stud 7 of an operating shaft 4 driven to rotate by a motor 5, and is pressed down to be mixed with the powder material. The generated bubbles smoothly rise along the vertically arranged mixer cylinder 2 and are removed from the mixer cylinder 2. The mortar that has reached the lower end of the mixer cylinder 2 is successively supplied to the inlet of the stator 10 of the eccentric screw pump 3 in a uniform kneaded state while being loosened by the feed blades 9 that are driven to rotate by the motor 5.
【００１０】このモルタルは、モータ５で回転駆動され
る偏心ねじポンプ３のロータ８とステータ１０の協同作
用によって、圧送ホース１２を通って作業者の手元ノズ
ル１３に搬送され、手元ノズル１３に供給される圧縮空
気によって対象壁面に吹き付けられる。The mortar is conveyed to the operator's hand nozzle 13 through the pressure feeding hose 12 and supplied to the hand nozzle 13 by the cooperative action of the rotor 8 and the stator 10 of the eccentric screw pump 3 rotated and driven by the motor 5. The compressed air is blown onto the target wall.
【００１１】[0011]
【実施例】図示の実施例では、ホッパー１は機枠１６の
上方枠部１７に固着され、機枠１６の底枠部１８には移
動用車輪１９を装備してある。ホッパー１の小径下端部
１ａは、機枠１６の中間枠部２０に固着したミキサーシ
リンダ２の上端部に嵌め込み固着されている。撹拌用翼
板６を固着した支持角棒２１は、ホッパー１の下方部分
に位置している作動軸４の周面に直角に固設されてい
る。２個ないし３個設けられた撹拌用翼板６は、回転方
向に向かって傾斜配置されている。In the illustrated embodiment, the hopper 1 is fixed to an upper frame portion 17 of a machine frame 16, and a bottom frame portion 18 of the machine frame 16 is equipped with moving wheels 19. The small-diameter lower end 1 a of the hopper 1 is fitted and fixed to the upper end of the mixer cylinder 2 fixed to the intermediate frame 20 of the machine frame 16. The support square bar 21 to which the stirring blades 6 are fixed is fixed at a right angle to the peripheral surface of the operating shaft 4 located below the hopper 1. Two or three stirring blades 6 are arranged obliquely in the rotation direction.
【００１２】モルタルの混練と推進を兼ねたスタッド７
は角棒形であり、作動軸４の軸線に対して直角に固設さ
れている。各スタッド７は、図１に示したように４つの
側面が水平面に対して４５度に傾斜するように配置され
ている。スタッド７は１２０度間隔で作動軸４の長さ方
向に沿って螺旋状に配置されている。偏心ねじポンプ３
のロータ８は作動軸４の下端に直結または適当な継ぎ手
を介して作動軸４に接続され、偏心ねじポンプ３の出口
部と圧送ホース１２は、下端に向かって内径が順次絞ら
れたレジューサ管２２を介して接続されている。Stud 7 for mixing and propelling mortar
Is a square rod shape, and is fixed at right angles to the axis of the operating shaft 4. Each stud 7 is arranged such that four side surfaces are inclined at 45 degrees with respect to a horizontal plane as shown in FIG. The studs 7 are spirally arranged at intervals of 120 degrees along the length direction of the operation shaft 4. Eccentric screw pump 3
The rotor 8 is directly connected to the lower end of the operating shaft 4 or connected to the operating shaft 4 through a suitable joint. The outlet of the eccentric screw pump 3 and the pressure-feeding hose 12 are connected to a reducer tube whose inner diameter is gradually reduced toward the lower end. 22.
【００１３】混練用水は計量槽２３あらかじめ所定量に
計量され、電磁弁２４を開くことによって、給水ホース
２５を通って注水口１１に送給される。電動モータ５は
機枠１６の上方枠部１７に搭載され、モータ５の出力軸
は作動軸４の上端に直結または適当な継ぎ手を介して接
続される。The kneading water is measured to a predetermined amount in advance in the measuring tank 23, and is supplied to the water inlet 11 through the water supply hose 25 by opening the electromagnetic valve 24. The electric motor 5 is mounted on an upper frame portion 17 of a machine frame 16, and an output shaft of the motor 5 is directly connected to an upper end of the operation shaft 4 or connected via a suitable joint.
【００１４】[0014]
【発明の効果】以上のように本発明の低層住宅用モルタ
ル混練吹付機は、漏斗形ホッパー１の小径下端部にミキ
サーシリンダ２を接続し、ミキサーシリンダ２の下部に
偏心ねじポンプ３を配置し、ホッパー１とミキサーシリ
ンダ２に貫通させた作動軸４の上端部にモータ５を接続
し、作動軸４の適所に撹拌用翼板６と混練兼推進用スタ
ッド７を突設し、作動軸４の下端部に偏心ねじポンプ３
のロータ８を接続し、ミキサーシリンダ２の上部に混練
用水の注水口１１を設け、偏心ねじポンプ３の出口部に
モルタルの圧送ホース１２を接続し、圧送ホース１２の
先端部の手元ノズル１３に圧縮空気の供給管１５を接続
したものであり、モルタルの混練機と圧送機が１台のモ
ータを兼用した形で一体化され、簡略化された機器構成
となっているため、大幅に小型かつ軽量化され、人力に
よっても容易に運搬および設置することができ、低層住
宅のモルタル外壁工事に最適である。As described above, in the mortar kneading and spraying machine for low-rise houses according to the present invention, the mixer cylinder 2 is connected to the small-diameter lower end of the funnel-shaped hopper 1 and the eccentric screw pump 3 is arranged below the mixer cylinder 2. The motor 5 is connected to the upper end of the operating shaft 4 penetrated through the hopper 1 and the mixer cylinder 2, and the stirring blades 6 and the kneading and propelling studs 7 are protruded at appropriate positions of the operating shaft 4. Eccentric screw pump 3 at the lower end
, A water inlet 11 for kneading water is provided at the upper part of the mixer cylinder 2, a mortar pumping hose 12 is connected to the outlet of the eccentric screw pump 3, and a hand nozzle 13 at the tip of the pumping hose 12 is connected to The compressed air supply pipe 15 is connected, and the mortar kneader and the pressure feeder are integrated as a single motor and have a simplified device configuration. It is lightweight and can be easily transported and installed by human power, making it ideal for mortar exterior wall construction in low-rise houses.
【００１５】また、ホッパー１とミキサーシリンダ２と
偏心ねじポンプ３が縦方向に整列して配置されているた
め、設置時の占有スペースが節減でき、様々な工事で立
て込んでいる工事現場への搬入設置が、他の工事のため
のスペースに過度に食い込むことなく行える。Further, since the hopper 1, the mixer cylinder 2, and the eccentric screw pump 3 are arranged vertically, the occupied space at the time of installation can be reduced, and the hopper 1, the mixer cylinder 2, and the eccentric screw pump 3 can be transported to a construction site that is standing in various works. Installation can be done without unduly digging into space for other construction.
【００１６】更に、前記した縦方向の整列配置に加え
て、ホッパー１内にある部分の作動軸４に撹拌用翼板６
を突設し、ミキサーシリンダ２内にある部分の作動軸４
に円周方向と軸方向に間隔を置いて複数本の混練兼推進
用スタッド７を下向きに傾斜させて突設し、作動軸４の
下端部に送り込み用翼板９を直径方向に固設し、送り込
み用翼板９を偏心ねじポンプ３のステータ１０の入口部
の真上に近接配置したので、最適状態に混練され、気泡
除去された均質なモルタルを脈動なしに連続的に圧送し
て的確に吹付け施工することができる。Further, in addition to the above-described arrangement in the vertical direction, a stirring vane plate 6
And the operating shaft 4 of the portion inside the mixer cylinder 2
A plurality of kneading and propulsion studs 7 are protruded at an interval in the circumferential direction and the axial direction so as to be inclined downward, and a feed blade 9 is fixed to the lower end of the operating shaft 4 in the diametric direction. Since the feeding blades 9 are arranged immediately above the inlet of the stator 10 of the eccentric screw pump 3, the homogeneous mortar kneaded in an optimal state and from which bubbles have been removed is continuously pressure-fed without pulsation and accurately. Can be sprayed.
【図１】本発明の一実施例に係る低層住宅用モルタル混
練吹付機の要部縦断正面図である。FIG. 1 is a longitudinal sectional front view of a main part of a mortar kneading sprayer for low-rise houses according to one embodiment of the present invention.
１ ホッパー ２ ミキサーシリンダ ３ 偏心ねじポンプ ４ 作動軸 ５ モータ ６ 撹拌用翼板 ７ 混練兼推進用スタッド ８ 偏心ねじポンプのロータ ９ 送り込み用翼板 １０ 偏心ねじポンプのステータ １１ 注水口 １２ 圧送ホース １３ 手元ノズル １４ エアーコンプレッサ １５ 圧縮空気の供給管 １６ 機枠 １７ 上方枠部 １８ 底枠部 １９ 車輪 ２０ 中間枠部 ２１ 支持角棒 ２２ レジューサ管 ２３ 計量槽 ２４ 電磁弁 ２５ 給水ホース DESCRIPTION OF SYMBOLS 1 Hopper 2 Mixer cylinder 3 Eccentric screw pump 4 Operating shaft 5 Motor 6 Stirring vane 7 Kneading and propulsion stud 8 Eccentric screw pump rotor 9 Feeding vane 10 Eccentric screw pump stator 11 Water inlet 12 Pressure hose 13 Hand Nozzle 14 Air compressor 15 Compressed air supply pipe 16 Machine frame 17 Upper frame section 18 Bottom frame section 19 Wheel 20 Intermediate frame section 21 Support square bar 22 Reducer pipe 23 Measuring tank 24 Solenoid valve 25 Water supply hose
Claims (1)
ホッパー１の小径下端部にミキサーシリンダ２を縦長に
接続し、ミキサーシリンダ２の下部に偏心ねじポンプ３
を配置し、ホッパー１とミキサーシリンダ２の中心部に
貫通させた作動軸４の上端部にモータ５を接続し、ホッ
パー１内にある部分の作動軸４に撹拌用翼板６を突設
し、ミキサーシリンダ２内にある部分の作動軸４に円周
方向と軸方向に間隔を置いて複数本の混練兼推進用スタ
ッド７を突設し、作動軸４に偏心ねじポンプ３のロータ
８を接続し、作動軸４の下端部に送り込み用翼板９を直
径方向に固設し、送り込み用翼板９を偏心ねじポンプ３
のステータ１０の入口部の真上に近接配置し、ミキサー
シリンダ２の上端部に所定量の混練用水が供給される注
水口１１を設け、偏心ねじポンプ３のステータ１０の出
口部にモルタルの圧送ホース１２を接続し、圧送ホース
１２の先端部に手元ノズル１３を接続し、エアーコンプ
レッサ１４からの圧縮空気の供給管１５を手元ノズル１
３に接続した低層住宅用モルタル混練吹付機。1. A mixer cylinder 2 is vertically connected to a small-diameter lower end of a funnel-shaped hopper 1 into which a powder material of a mortar is charged.
The motor 5 is connected to the upper end of the operating shaft 4 penetrating through the center of the hopper 1 and the mixer cylinder 2, and the stirring blades 6 are protruded from the operating shaft 4 in the portion inside the hopper 1. A plurality of kneading and propulsion studs 7 are protrudingly provided at intervals in the circumferential direction and the axial direction on the operating shaft 4 in a portion within the mixer cylinder 2, and the rotor 8 of the eccentric screw pump 3 is mounted on the operating shaft 4. The blades 9 for feeding are fixed to the lower end of the operating shaft 4 in the diameter direction, and the blades 9 for feeding are connected to the eccentric screw pump 3.
A water injection port 11 for supplying a predetermined amount of kneading water is provided at the upper end of the mixer cylinder 2, and mortar is pumped to the outlet of the stator 10 of the eccentric screw pump 3. The hose 12 is connected, the hand nozzle 13 is connected to the tip of the pressure feeding hose 12, and the compressed air supply pipe 15 from the air compressor 14 is connected to the hand nozzle 1.
Mortar kneading sprayer for low-rise houses connected to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8191391A JP2958147B2 (en) | 1991-03-20 | 1991-03-20 | Mortar kneading sprayer for low-rise houses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8191391A JP2958147B2 (en) | 1991-03-20 | 1991-03-20 | Mortar kneading sprayer for low-rise houses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04315656A JPH04315656A (en) | 1992-11-06 |
| JP2958147B2 true JP2958147B2 (en) | 1999-10-06 |
Family
ID=13759689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8191391A Expired - Fee Related JP2958147B2 (en) | 1991-03-20 | 1991-03-20 | Mortar kneading sprayer for low-rise houses |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2958147B2 (en) |
Cited By (1)
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|---|---|---|---|---|
| CN109356365A (en) * | 2018-12-01 | 2019-02-19 | 潍坊工程职业学院 | An interior wall plastering device for decoration engineering |
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| JP3545530B2 (en) * | 1996-03-26 | 2004-07-21 | 桐灰化学株式会社 | Powder disposer for disposable body warmer and disposable body warmer using the same |
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| CN103422658A (en) * | 2013-08-30 | 2013-12-04 | 张春平 | Wallboard bottom surface pasting machine |
| CN104372915B (en) * | 2014-10-16 | 2017-06-16 | 苏州亚玛达机械有限公司 | Power underneath type automatic plastering machine |
| CN106193549A (en) * | 2016-08-03 | 2016-12-07 | 张春平 | Building surface smear machine |
| CN113781862B (en) * | 2021-09-18 | 2023-03-31 | 上海震旦职业学院有限公司 | Plastering and spraying functional device for teaching and practical training |
-
1991
- 1991-03-20 JP JP8191391A patent/JP2958147B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356365A (en) * | 2018-12-01 | 2019-02-19 | 潍坊工程职业学院 | An interior wall plastering device for decoration engineering |
| CN109356365B (en) * | 2018-12-01 | 2020-07-17 | 潍坊工程职业学院 | Plastering device for interior wall of finishing work |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04315656A (en) | 1992-11-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990713 |
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| LAPS | Cancellation because of no payment of annual fees |