CN104971912B - Ceramic tile cleaning device - Google Patents
Ceramic tile cleaning device Download PDFInfo
- Publication number
- CN104971912B CN104971912B CN201510385591.3A CN201510385591A CN104971912B CN 104971912 B CN104971912 B CN 104971912B CN 201510385591 A CN201510385591 A CN 201510385591A CN 104971912 B CN104971912 B CN 104971912B
- Authority
- CN
- China
- Prior art keywords
- cleaning
- ceramic tile
- frock
- seat board
- drive mechanism
- 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.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 72
- 239000000919 ceramic Substances 0.000 title claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Cleaning In General (AREA)
- Finishing Walls (AREA)
Abstract
The invention discloses a kind of ceramic tile cleaning device, wherein, including：Clean support；Slide unit, it is arranged in the way of it can horizontally slip on the cleaning support；The slide unit is driven into line slip by one first drive mechanism；Seat board is cleaned, it is hung in the way of it can lift on the slide unit, and the sponge block for cleaning is provided with the cleaning seat board；The cleaning seat board is lifted by the driving of one second drive mechanism；Working base, it is rotatably arranged on the cleaning support and is located at the lower section of the cleaning seat board, and the working base is rotated by the driving of one the 3rd drive mechanism；And frock, four frocks are circumferentially evenly arranged on the working base；The frock is provided with fixture to clamp ceramic tile.The present invention can carry out mechanized cleaning to ceramic tile, and be provided with four frocks, and while ceramic tile that can be on to a station is cleaned, the ceramic tile of other stations is dismounted, and its cleaning efficiency is high.
Description
Technical field
The present invention relates to cleaning equipment field, more particularly to a kind of ceramic tile cleaning device.
Background technology
Ceramic tile is the metal oxide and half-metal oxide with fire resisting, via grinding, mixing, compacting, glazing, sinters it
Process, and the building of porcelain or stone matter of a kind of acid and alkali-resistance of formation etc. or the material of decoration.Often needed in ceramic tile production process
Ceramic tile is cleaned, existing cleaning method is more based on artificial clean, and its cleaning efficiency is low, and labor strength is big.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
When the prior art for being considered as recognizing or implying the information structure in any form well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of ceramic tile cleaning device, so as to overcome the cleaning of existing artificial cleaning ceramic tile
The shortcoming that efficiency is low and labor intensity is big.
To achieve the above object, the invention provides a kind of ceramic tile cleaning device, wherein, including：Clean support；Slide unit,
It is arranged in the way of it can horizontally slip on the cleaning support；The slide unit is slided by the driving of one first drive mechanism
It is dynamic；Seat board is cleaned, it is hung in the way of it can lift on the slide unit, and the sea for cleaning is provided with the cleaning seat board
Continuous block；The cleaning seat board is lifted by the driving of one second drive mechanism；Working base, it is rotatably arranged at institute
The lower section of the cleaning seat board is stated on cleaning support and is located at, and the working base is rotated by the driving of one the 3rd drive mechanism；
And frock, four frocks are circumferentially evenly arranged on the working base；The frock is provided with fixture for clamping
Ceramic tile.
Preferably, in above-mentioned technical proposal, the sponge block is arranged in the way of it can dismantle on the cleaning seat board.
Preferably, in above-mentioned technical proposal, first drive mechanism includes：Screw mandrel, it rotatably sets
It is placed in the top of the cleaning support；The slide unit is sheathed on the screw mandrel by screw；And first motor, it is arranged at institute
The top of support is stated, and first motor is connected with the screw mandrel, to drive the screw mandrel to be rotated.
Preferably, in above-mentioned technical proposal, second drive mechanism is a hydraulic cylinder.
Preferably, in above-mentioned technical proposal, the 3rd drive mechanism includes：Rotating shaft, it rotatably sets
It is placed on the cleaning support, and the working base fixed cover is in the rotating shaft；And second motor, it is arranged at described clear
Wash on support and be connected with the rotating shaft, to drive the rotating shaft to be rotated.
Preferably, in above-mentioned technical proposal, the fixture includes：Fixed dam, it is fixedly installed on the one of the frock
End；Sideboard, it is oppositely disposed in the other end of the frock in the way of it can slide with the fixed dam；And
Retaining mechanism, it is used to lock the sideboard.
Preferably, in above-mentioned technical proposal, a chute corresponding with the sideboard is provided with the frock, it is described
Retaining mechanism includes：Bolt, it is fixedly installed on the bottom of the sideboard, and the bolt active card is embedded in the chute
Interior, one end of the bolt is stretched out in outside the chute；And nut, it is arranged at the bolt and stretched out in outside the chute
One end.
Compared with prior art, the present invention has the advantages that：
1st, the present invention can carry out mechanized cleaning to ceramic tile, and be provided with four frocks, can be in the frock to top
On ceramic tile while cleaned, the ceramic tile of the frock of both sides is dismounted, simple in construction, cleaning efficiency is high, Neng Gou great
The labor intensity of big reduction workman.
2nd, the fixture in frock of the present invention is simple to operate, can facilitate and ceramic tile is dismounted.
Brief description of the drawings
Fig. 1 is the structural representation according to ceramic tile cleaning device of the present invention.
Fig. 2 is the structural representation being installed on according to four frocks of the present invention on working base.
Fig. 3 is the structural representation of the fixture according to the present invention.
Main Reference Numerals explanation：
1- cleans support；2- slide units, 21- screw mandrels, the motors of 22- first；3- cleaning seat boards, 31- sponge blocks, 32- slide bars,
33- hydraulic cylinders；4- working bases, 41- rotating shafts, the motors of 42- second；5- frocks, 51- fixed dams, 52- sideboards, 53- is slided
Groove, 54- bolts, 55- nuts.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figure 1 to Figure 3, it is according to a kind of embodiment of the specific embodiment of the invention：A kind of ceramic tile cleaning device,
It includes cleaning support 1, slide unit 2, cleaning seat board 3, working base 4 and frock 5, wherein：
As shown in figure 1, slide unit 2 is arranged at the top of cleaning support 1 in the way of it can horizontally slip, slide unit 2 is by one the
One drive mechanism is driven into line slip.Preferably, the first drive mechanism includes the motor 22 of screw mandrel 21 and first, and screw mandrel 21 is with energy
The mode enough rotated is arranged at the top of cleaning support 1；Slide unit 2 is sheathed on screw mandrel 21 by screw, and the first motor 22 is set
In the top of support 1, and the first motor 22 is connected with one end of screw mandrel 21, is rotated with drive screw 21.When the first motor
When 22 drive screws 21 carry out rotating, it can drive slide unit 2 to be moved left and right.
As shown in figure 1, cleaning seat board 3 slide bar 32 to hang on slide unit 2 by way of can lifting, seat board 3 is cleaned
On sponge block 31 for cleaning is installed, it is preferable that sponge block 31 is arranged in the way of it can dismantle on cleaning seat board 3,
To be convenient for changing sponge block 31.Cleaning seat board 3 is lifted by the driving of one second drive mechanism, it is preferable that the second drive mechanism
For a hydraulic cylinder 33, the cylinder body of hydraulic cylinder 33 is fixed on slide unit 2, and the piston rod of hydraulic cylinder 33 is connected with cleaning seat board 3.
As depicted in figs. 1 and 2, working base 4 is rotatably arranged on cleaning support 1 and positioned at cleaning seat board
3 lower section, and working base 4 by one the 3rd drive mechanism driving rotated.Preferably, as shown in figure 1, the 3rd drive mechanism bag
The motor 42 of rotating shaft 41 and second is included, rotating shaft 41 is rotatably arranged on cleaning support 1, and working base 4 is fixed
It is sheathed in rotating shaft 41.Second motor 42 is arranged on cleaning support 1 and is connected with rotating shaft 41, with 41 turns of drive shaft
Dynamic, so as to drive working base 4 to be rotated, the drive shaft 41 of the second motor 42 carries out gap rotation, and the angle rotated every time is
90 °, so that working base 4 rotates 90 ° every time.
As depicted in figs. 1 and 2, four frocks 5 are circumferentially evenly arranged on working base 4, wherein superposed work
Fill 5 corresponding with sponge block 31, frock 5 is provided with fixture to clamp ceramic tile.When working base 4 often rotates 90 °, four frocks 5
Position just convert once.Preferably, as shown in Figures 2 and 3, fixture includes fixed dam 51, sideboard 52 and locking
Mechanism, fixed dam 51 is fixedly installed on one end of frock 5, sideboard 52 in the way of it can slide with the phase of fixed dam 51
The other end of frock 5 is arranged at over the ground, and retaining mechanism is used to lock sideboard 52, and one end of ceramic tile acts against fixed dam 51
On, and sideboard 52 clamp ceramic tile the other end and locked by retaining mechanism so that ceramic tile is fixed in frock 5.
It is further preferred that as shown in figure 3, being provided with a chute 53 corresponding with sideboard 52 in frock 5, retaining mechanism includes spiral shell
Bolt 54 and nut 55, bolt 54 are fixedly installed on the bottom of sideboard 52, and the active card of bolt 54 is embedded in chute 53, living
Dynamic baffle plate 52 enters line slip by bolt 54 along chute 53.One end of bolt 54 is stretched out in outside chute 53, and nut 55 is arranged at
One end that bolt 54 is stretched out in outside chute 53, pine is locked by nut 55 or bolt 54 is unclamped, so as to control sideboard 52
Locking and release.The present invention fixture it is simple to operate, can facilitate and ceramic tile is dismounted
The present invention is to the cleaning process of ceramic tile：First, hydraulic cylinder 33 rises cleaning seat board 3, to avoid influenceing frock 5
Rotate.Then, ceramic tile is installed in the frock 5 of side, then drives working base 4 to rotate 90 ° by the second motor 42, make installation
The frock 5 for having ceramic tile is located at the lower section of cleaning seat board 3.Then, hydraulic cylinder 33 fall again cleaning seat board 3, make sponge block 31 with
Ceramic tile is contacted.Finally, rotating is carried out by the drive screw 21 of the first motor 22, so that slide unit 2 drives cleaning seat board 3 to carry out a left side
Right circulation is slided, and just sponge block 31 can be driven to wipe ceramic tile back and forth, to reach the purpose of cleaning.After cleaning is finished,
Drive working base 4 to rotate 90 ° by the second motor 42 again, make four transpositions of frock 5.When forming circulation work, in sponge
When the ceramic tile that block 31 is pointed in the frock 5 of top is cleaned, the frock 5 of cleaned ceramic tile has gone to side, at this moment work
People just can unload cleaned ceramic tile simultaneously, and can also be to installing to be cleaned in the frock 5 of opposite side sky in cleaning process
Ceramic tile.So as to realize while the ceramic tile for being pointed to the frock 5 of top is cleaned, while the frock 5 to both sides carries out dismounting porcelain
Brick, to improve cleaning efficiency.
The present invention can carry out mechanized cleaning to ceramic tile, and be provided with four frocks 5, can be in the frock 5 to top
On ceramic tile while cleaned, the ceramic tile of the frock 5 of both sides is dismounted, its simple in construction, cleaning efficiency is high, can
Substantially reduce the labor intensity of workman.
It is foregoing to the present invention specific illustrative embodiment description be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles and its reality of the present invention should
With so that those skilled in the art can realize and using the present invention a variety of exemplaries and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (5)
1. a kind of ceramic tile cleaning device, it includes：
Clean support；
Slide unit, it is arranged in the way of it can horizontally slip on the cleaning support；The slide unit is driven by one first drive mechanism
Move into line slip；
Seat board is cleaned, it is hung in the way of it can lift on the slide unit, is provided with the cleaning seat board for cleaning
Sponge block；The cleaning seat board is lifted by the driving of one second drive mechanism；
Working base, it is rotatably arranged on the cleaning support and positioned at the lower section of the cleaning seat board, and
The working base is rotated by the driving of one the 3rd drive mechanism；And
Frock, four frocks are circumferentially evenly arranged on the working base；The frock is provided with fixture for clamping
Ceramic tile；Characterized in that,
The fixture includes：
Fixed dam, it is fixedly installed on one end of the frock；
Sideboard, it is oppositely disposed in the other end of the frock in the way of it can slide with the fixed dam；Institute
State and a chute corresponding with the sideboard is provided with frock；And
Retaining mechanism, it is used to lock the sideboard；The retaining mechanism includes：
Bolt, it is fixedly installed on the bottom of the sideboard, and the bolt active card is embedded in the chute, the bolt
One end is stretched out in outside the chute；And
Nut, it is arranged at one end that the bolt is stretched out in outside the chute.
2. ceramic tile cleaning device according to claim 1, it is characterised in that the sponge block is set in the way of it can dismantle
It is placed on the cleaning seat board.
3. ceramic tile cleaning device according to claim 1, it is characterised in that first drive mechanism includes：
Screw mandrel, it is rotatably arranged at the top of the cleaning support；The slide unit is sheathed on this by screw
On screw mandrel；And
First motor, it is arranged at the top of the support, and first motor is connected with the screw mandrel, to drive the screw mandrel
Rotated.
4. ceramic tile cleaning device according to claim 1, it is characterised in that second drive mechanism is a hydraulic cylinder.
5. ceramic tile cleaning device according to claim 1, it is characterised in that the 3rd drive mechanism includes：
Rotating shaft, it is rotatably arranged on the cleaning support, and the working base fixed cover is located at the rotating shaft
On；And
Second motor, it is arranged on the cleaning support and is connected with the rotating shaft, to drive the rotating shaft to be rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385591.3A CN104971912B (en) | 2015-07-03 | 2015-07-03 | Ceramic tile cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385591.3A CN104971912B (en) | 2015-07-03 | 2015-07-03 | Ceramic tile cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104971912A CN104971912A (en) | 2015-10-14 |
| CN104971912B true CN104971912B (en) | 2017-10-03 |
Family
ID=54269194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510385591.3A Active CN104971912B (en) | 2015-07-03 | 2015-07-03 | Ceramic tile cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104971912B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598051A (en) * | 2015-12-29 | 2016-05-25 | 天津市天鹏建筑器材有限公司 | Building material cleaning equipment |
| CN106670199A (en) * | 2017-02-22 | 2017-05-17 | 李金平 | Adjustable fixture for ceramic tile cleaning |
| CN107335642A (en) * | 2017-05-29 | 2017-11-10 | 广州凯燃环保工程技术有限公司 | A kind of cleaning device of convenient environmental protection |
| CN108405418A (en) * | 2018-02-08 | 2018-08-17 | 福建省南安市荣达建材有限公司 | A kind of ceramic tile cleaning device |
| CN108712147A (en) * | 2018-05-25 | 2018-10-26 | 安徽知之信息科技有限公司 | A kind of new-energy automobile solar panels cleaning device |
| CN109774114A (en) * | 2019-03-05 | 2019-05-21 | 江苏派恩新型材料有限公司 | A kind of adjustable overlay film size device |
| CN111229672A (en) * | 2020-01-08 | 2020-06-05 | 菏泽学院 | Automatic cleaning robot and use method |
| CN111318485A (en) * | 2020-02-27 | 2020-06-23 | 梁秀云 | Raw material processing apparatus is retrieved to haydite sand proppant |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685039A (en) * | 1995-05-12 | 1997-11-11 | Tokyo Electron Limited | Cleaning apparatus |
| CN201454909U (en) * | 2009-07-02 | 2010-05-12 | 宜昌英汉超声电气有限公司 | Washer for conveying parts in turntable stepping mode |
| CN203330081U (en) * | 2013-05-28 | 2013-12-11 | 江苏新美星包装机械股份有限公司 | Overturning type ion air dedusting device |
| CN203408907U (en) * | 2013-06-20 | 2014-01-29 | 三星高新电机（天津）有限公司 | Automatic sweeping device |
| CN203470369U (en) * | 2013-08-01 | 2014-03-12 | 神悦（福建）铸造有限公司 | Movable scrubbing device for nested frame used for founding |
| CN103721960A (en) * | 2012-10-11 | 2014-04-16 | 万向电动汽车有限公司 | Continuous cleaning device of lithium battery electrode plate |
| CN204892428U (en) * | 2015-07-03 | 2015-12-23 | 天峨县科学技术情报研究所 | Ceramic tile belt cleaning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3108312B2 (en) * | 1995-03-13 | 2000-11-13 | シャープ株式会社 | How to clean LCD panel |
-
2015
- 2015-07-03 CN CN201510385591.3A patent/CN104971912B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685039A (en) * | 1995-05-12 | 1997-11-11 | Tokyo Electron Limited | Cleaning apparatus |
| CN201454909U (en) * | 2009-07-02 | 2010-05-12 | 宜昌英汉超声电气有限公司 | Washer for conveying parts in turntable stepping mode |
| CN103721960A (en) * | 2012-10-11 | 2014-04-16 | 万向电动汽车有限公司 | Continuous cleaning device of lithium battery electrode plate |
| CN203330081U (en) * | 2013-05-28 | 2013-12-11 | 江苏新美星包装机械股份有限公司 | Overturning type ion air dedusting device |
| CN203408907U (en) * | 2013-06-20 | 2014-01-29 | 三星高新电机（天津）有限公司 | Automatic sweeping device |
| CN203470369U (en) * | 2013-08-01 | 2014-03-12 | 神悦（福建）铸造有限公司 | Movable scrubbing device for nested frame used for founding |
| CN204892428U (en) * | 2015-07-03 | 2015-12-23 | 天峨县科学技术情报研究所 | Ceramic tile belt cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104971912A (en) | 2015-10-14 |
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Effective date of registration: 20191217 Address after: Room 207, main office building, No.118 Longxing Road, Haining Economic Development Zone, Haining City, Jiaxing City, Zhejiang Province Patentee after: Haining Economic Development Industrial Park Development and Construction Co., Ltd Address before: 547300 the Guangxi Zhuang Autonomous Region Tian'e County in Hechi city in six row Town Road No. 103 Patentee before: TIAN'E INSTITUTE OF SCIENTIFIC AND TECHNICAL INFORMATION |