CN106733463A - Coating die head Wiping mechanism and coating machine and the method for wiping coating die head - Google Patents
Coating die head Wiping mechanism and coating machine and the method for wiping coating die head Download PDFInfo
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- CN106733463A CN106733463A CN201611245430.5A CN201611245430A CN106733463A CN 106733463 A CN106733463 A CN 106733463A CN 201611245430 A CN201611245430 A CN 201611245430A CN 106733463 A CN106733463 A CN 106733463A
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- Prior art keywords
- die head
- coating
- coating die
- roller
- wiping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
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- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention relates to coating applications, the method for more particularly to a kind of coating die head Wiping mechanism and coating machine and wiping coating die head.The coating die head Wiping mechanism includes rotatable roller, and when coating die head stops coating, the roller and coating die head are contacted, and roller is rotated so as to the die lip to coating die head is wiped, and dissolves the coating fluid for remaining in coating die head die lip outer surface.The coating machine employs above-mentioned coating die head Wiping mechanism.The method of the wiping coating die head includes step：When coating die head stops being coated with, the outer surface of the die lip outer surface of the coating die head and a roller is contacted, or coating die head squeezing roller makes roller surface deformation；The roller is rotated to wipe the die lip outer surface of coating die head.Coating fluid will not be set on coating die head during the method for coating die head Wiping mechanism of the invention and coating machine and wiping coating die head has the advantages that clearance slits coating process.
Description
【Technical field】
The present invention relates to coating applications, more particularly to a kind of coating die head Wiping mechanism and coating machine and wiping are coated with mould
The method of head.
【Background technology】
Slot coating technique has in every profession and trade and more widely uses, (typically a kind of pure by outer bound pair coating fluid
Liquid, solution or suspension) apply external force extruding, allow it from the slit of coating die head (generally several microns to millimeter rank)
Between pass through, be uniformly attached on the base material that need to be coated with, form film of the thickness at several microns to several millimeters.Intermittence slot coated side
Formula is generally used for some and is unable in quantity-produced equipment, and in production time in gap of two workpiece, coating fluid rests on painting
At the die lip of cloth die head extruding and discharging, due to the coating fluid at this in ambiance, may be caused to coagulate because of various factors
Gu, some particles are formed, severe patient directly blocks the slit of film head, and it is that the film for applying out just has obvious to produce next workpiece
Grain thing and cut, or even coating fluid is got lodged in into film head inside and coating work can not be completed.
In the prior art, the mechanism of coating die head is generally changed, so that the solidification of coating fluid on coating die head is reduced, so
And, its whole structure is not good, and clearance slits coating quality still can not be ensured well！
Therefore, how to avoid that the problem that coating fluid is set on coating die head occurs in clearance slits coating process, turn into
The problem demanding prompt solution in coating machinery field.
【The content of the invention】
There is the technical problem that coating fluid is set on coating die head to overcome in clearance slits coating process, the present invention is carried
A kind of the coating die head Wiping mechanism and coating machine of the solidification that can avoid generation coating fluid in clearance slits coating process are supplied
And the method for wiping coating die head.
The scheme that the present invention solves technical problem is to provide a kind of coating die head Wiping mechanism, and it is used to wipe for gap
The coating die head of slot coated, the coating die head includes the die lip of coating fluid, and the coating die head Wiping mechanism includes rotatable
Roller, when coating die head stops coating, the roller and coating die head are contacted, and roller is rotated so as to the die lip to coating die head
Wiped, dissolve the coating fluid for remaining in coating die head die lip outer surface.
Preferably, the coating die head Wiping mechanism also includes the liquid bath equipped with wiping solution, and the roller is located at the liquid
Groove top can be simultaneously adsorbed on roller relative to liquid bath movement with by wiping solution.
Preferably, the roller includes adsorption layer and hard layer, and the adsorption layer is surrounded on hard layer, the adsorption layer
Wiping solution is adsorbed, when the roller is rotated, the adsorption layer for adsorbing wiping solution is wiped to the die lip of coating die head.
Preferably, when the roller rotates and coating die head is wiped, the outer surface of the adsorption layer and the mould of coating die head
Lip outer surface is tangent.
Preferably, when the roller rotates and coating die head is wiped, the coating die head extruding adsorption layer causes to be extruded
Partial adsorbates layer depression, the depth of the depression is 1-20mm.
Preferably, the surface of the adsorption layer is radially equipped with groove, and the groove shapes and coating die head match,
The roller is rotated when being wiped to coating die head, and the coating die head is located in groove.
Preferably, roller alternate rotation clockwise and anticlockwise.
The present invention also provides a kind of coating machine, and the coating machine employs above-mentioned coating die head Wiping mechanism.
The present invention also provides a kind of method for wiping coating die head, and its step includes：When coating die head stops being coated with, will
The outer surface contact of the die lip outer surface and a roller of the coating die head, or coating die head squeezing roller makes roller surface shape
Become；The roller is rotated to wipe the die lip outer surface of coating die head.
Preferably, when rotating the roller with the die lip outer surface for wiping coating die head, the rotating speed of the roller is 0.5-
5r/min。
Compared with prior art, coating die head Wiping mechanism of the invention includes rotatable roller, and coating die head stops
During coating, the roller and coating die head are contacted, and roller is rotated so as to the die lip to coating die head is wiped, and makes to remain in painting
The coating fluid dissolving of cloth die lip outer surface, is prevented from coating fluid and solidifies to form particle packing on coating die head or straight
The die lip for blocking coating die head is connect, the quality of clearance slits coating is improved, roller is rotated can be such that wiping effect further improves,
Further improve coating quality.
Coating die head Wiping mechanism of the invention also includes the liquid bath equipped with wiping solution, and the roller is located on the liquid bath
Fang Bingke is adsorbed on roller relative to liquid bath movement with by wiping solution, roller rotate when so as to wiping solution to coating die head
Wiped, and wiping solution is applied on the die lip of coating die head, wiping solution is carried out to the coating fluid on coating die head die lip
Dissolving, so that coating fluid does not separate out solid, does not solidify, and so as to decrease or even eliminate the solidification of coating fluid, improves gap coating
Quality, extend coating die head working time, improve production efficiency, and then reduce coating cost.
Roller of the invention includes adsorption layer and hard layer, and the adsorption layer is surrounded on hard layer, and the adsorption layer will
Wiping solution is adsorbed, and when the roller is rotated, the adsorption layer for adsorbing wiping solution is wiped to coating die head, so that wiping solution can be more
Many is applied on the die lip of coating die head, and the quality for being coated with gap is further improved.
Roller of the invention is rotated when being wiped to coating die head, and the coating die head extruding adsorption layer causes to be squeezed laminate section
Adsorption layer is recessed, and the depth of the depression is 1-20mm, and the frictional force between adsorption layer and coating die head is bigger, makes wiping effect more
It is good, and unnecessary coating fluid can either be wiped, and more wiping solutions can be smeared on the die lip of coating die head, make coating fluid
Solidification is less susceptible to, the quality of clearance slits coating is further improved.
The surface of adsorption layer of the invention is radially equipped with groove, and the groove shapes and coating die head match, institute
Roller is stated to rotate when wiping coating die head, the coating die head in groove so that groove more agrees with coating die head
Die lip, makes wiping effect more preferable.
Roller of the invention alternate rotation clockwise and anticlockwise, wipes the die lip of coating die head from different directions, makes
Wiping effect is more preferable.
Coating machine of the invention employs above-mentioned coating die head Wiping mechanism, is prevented from coating fluid and solidifies to form particle
The die lip of coating die head is deposited on the die lip of coating die head or directly blocked, the quality of gap coating is improved, roller is rotated
Wiping effect can be made further to improve, further improve coating quality.
The method for wiping coating die head of the invention includes step：When coating die head stops being coated with, by the coating mould
The outer surface contact of the die lip outer surface and a roller of head, or coating die head squeezing roller makes roller surface deformation；Rotation is described
Roller is wiping the die lip outer surface of coating die head.
To wipe during coating die head, the rotating speed of the roller is 0.5-5r/min to swing roller of the invention, and this speed turns
The dynamic coating die head that wipes is just right, because roller and coating die head friction are so as to produce substantial amounts of heat, and then will not reduce coating mould
The life-span of head.
【Brief description of the drawings】
Fig. 1 is schematic diagram when coating die head Wiping mechanism of the present invention is wiped to coating die head.
Fig. 2 is the schematic diagram that coating die head Wiping mechanism of the present invention moves to another location.
Fig. 3 is the close-up schematic view of P in Fig. 1.
Fig. 4 is the close-up schematic view of Q in Fig. 2.
Fig. 5 is to a kind of schematic diagram of deformation of wiping arrangement in Fig. 3.
Fig. 6 is the schematic flow sheet of the method for wiping coating die head of the invention.
【Specific embodiment】
In order that the purpose of the present invention, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and embodiment,
The present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
Fig. 1 is referred to, the present invention provides a kind of coating die head Wiping mechanism, and it is used for the coating die head 20 to gap coating
Wiped.Coating die head 20 includes the die lip 22 positioned at the one end of coating die head 20, and the coating inside coating die head 20
Liquid 24, coating fluid 24 is squeezed from die lip 22 and extrudes so as to complete coating.During coating clearance, coating die head Wiping mechanism pair
The die lip 22 of coating die head 20 is wiped, the coating fluid 24 on the outer surface of die lip 22 for being prevented from remain in coating die head 20
Solidification forms particle or directly blocks the die lip 22 of coating die head 20, improves the quality of gap coating.
Coating die head Wiping mechanism includes wiping arrangement 10 and mobile device (figure is not regarded), and wiping arrangement 10 is fixed on movement
On device, mobile device drives wiping arrangement 10 to move, so that wiping arrangement 10 and coating die head 20 are contacted, so that coating mould
Head Wiping mechanism can be wiped to the die lip 22 of coating die head 20.Coating die head 20 is wiped in coating die head Wiping mechanism
During, mobile device can also be further driven to wiping arrangement 10 and move, so that wiping arrangement 10 fully wipes coating die head 20.
Fig. 2 is referred to, mobile device can drive wiping arrangement 10 to be moved between first position A and second place B, applied
Cloth die head 20 is located between first position and the second place, and mobile device drives wiping arrangement 10 in first position A and second
Putting when move between B, wiping arrangement 10 can all wipe the die lip 22 that coating die head 20 is used to be coated with, and effectively prevent coating
The solidification of liquid 24 even blocks coating die head 20.Mobile device can drive wiping arrangement 10 to move so as to avoid coating die head
Station during 20 coating work, it is ensured that the normal work of coating die head 20.
Fig. 3 is referred to, coating die head Wiping mechanism includes rotating power source 12, the roller 16 and liquid bath 14 that can be rotated.
Rotating power source 12 and roller 16 are connected and rotated with rotation driving roller 16.Wiping solution is filled in liquid bath 14, roller 16 is located at liquid
The top of groove 14 and being moved relative to liquid bath 14 is adsorbed on roller 16 with by wiping solution.Wiping solution has the work(of dissolving coating fluid 24
Can, i.e. wiping solution equivalent to a kind of solvent, wiping solution and coating fluid 24 solidify or separate out solid contact when, wiping solution can be painting
The solid dissolving that cloth liquid 24 solidifies or separates out.Roller 16 can be wiped with wiping solution when rotating to coating die head 20, be coated with
If liquid 24 forms solid, roller 16 can wipe out solid, and wiping solution is applied on the die lip 22 of coating die head 20, and
Last layer wiping solution is also smeared on the surface of coating fluid 24 and extraneous contact, due to the presence of wiping solution solvent, makes coating fluid 24
Solidification is more difficult to, so as to improve the quality of gap coating, extends the working time of coating die head 20, improve production efficiency, and then
Reduce coating cost.Preferably, when roller 16 rotates and coating die head 20 is wiped, outer surface and the coating mould of the roller 16
First 20 outer surface of die lip 22 is tangent.It is appreciated that liquid bath 14 can be omitted, roller 16 is rotated directly to be wiped coating die head 20
Wipe.
Rotating power source 12 is preferably motor, and motor includes motor shaft, and motor shaft and roller 16 are connected with driving rolls 16
Rotate.When wiping arrangement 10 is wiped to coating die head 20, the rotating speed of the driving rolls 16 of rotating power source 12 is preferably
0.5-5r/min, this speed rotation wiping coating die head 20 is just right, will not be rubbed so as to produce because of roller 16 and coating die head 20
The substantial amounts of heat of life, and then the life-span of coating die head 20 is reduced, and wiping solution in liquid bath 14 will not be thrown away because rotating speed is too fast,
Waste of resource and cost.It is preferred that the alternate rotation clockwise and anticlockwise of motor control roller 16.It is appreciated that rotating power source 12
Setting can be omitted, manually or other modes rotate roller 16, can also make the alternate rotation clockwise and anticlockwise of roller 16.Move
Dynamic device can drive wiping arrangement 10 rotatably mobile.
Fig. 4 is referred to, in another embodiment, the roller 16 includes adsorption layer 162 and hard layer 164.The ring of adsorption layer 162
Hard layer 164 is around in, and is fixedly connected with hard layer 164, rotating power source 12 and hard layer 164 are connected.Rotating power source 12
The adsorption layer 162 and the synchronous rotary of hard layer 164 of roller 16 can be driven during rotation.
Preferably, hard layer 164 is substantially cylindrical.The material of hard layer 164 is hardness of matter, will not preferably adsorb wiping
Wipe the material of liquid, such as polyethylene.
Preferably, the profile of adsorption layer 162 is substantially cylindrical, hollow in it, so that adsorption layer 162 surround and is wrapped in hard
On matter layer 164.Adsorption layer 162 can adsorb wiping solution, and when roller 16 is rotated, adsorption layer 162 can always and coating die head
20 contacts, adsorb the adsorption layer 162 of wiping solution so as to be wiped to coating die head 20.Preferably, the material of adsorption layer 162 is soft
Material, more preferably sponge, i.e. adsorption layer 162 are spongy layer.Adsorption layer 162 can be by the way of physically or chemically and hard
Matter layer 164 is connected.Physical connection, such as uses glue bonding, screw fixation etc., is connected chemically, such as using precipitation, after chemical reaction
The modes such as the chemical bond of generation.Roller 16 is rotated when being wiped to coating die head 20, the outer surface of the adsorption layer 162 of roller 16 and painting
Cloth die head 20 is tangent.
Deform as one kind, roller 16 also includes main shaft 166, in the insertion hard layer 164 of main shaft 166, and main shaft 166 and rotation
Rotatory force source 12 connects.Rotating power source 12 is rotated so as to drive active rotation, and drives hard layer 164 and adsorption layer 162 to revolve
Turn.Preferably, main shaft 166, hard layer 164 and the coaxial line of adsorption layer 162.It is appreciated that when roller 16 does not include main shaft 16, electricity
Arbor is inserted among roller, also can driving rolls rotation.
The cross-sectional area of liquid bath 14 is preferably semicircle or similar semicircle, so that when roller 16 is located in liquid bath 14,
Roller 16 and liquid bath 14 match, and the wiping solution in liquid bath 14 is less also height higher, so as to reduce wiping solution
Usage amount, saves cost.
Fig. 5 is referred to, is selected as one kind, roller 16 is rotated when being wiped to coating die head 20, the pair roller of coating die head 20
16 adsorption layer 162 is extruded, so that the surface of adsorption layer 162 for being squeezed laminate section forms the depression towards hard layer 164,
Namely similar coating die head 20 puts in adsorption layer 162, so that the frictional force between adsorption layer 162 and coating die head 20 is bigger, makes
Wiping effect more preferably, and can either wipe unnecessary coating fluid, and can smear more wiping solutions on die lip 22, make coating
Liquid 24 is less susceptible to solidification, further improves the quality of gap coating.Preferably, coating die head 20 is extruded adsorption layer 162
When, the depth h of the depression that the deformation of adsorption layer 162 is produced is 1-20mm, more preferably 5-15mm.
Deform as one kind, groove 1622 is set on the surface of adsorption layer 162, groove 1622 is radially around being opened in absorption
The surface of layer 162, so that roller 16 is rotated when being wiped to coating die head 20, coating die head 20 is always positioned in groove 1622.It is excellent
Selection of land, the shape and coating die head 20 of groove 1622 match.It is appreciated that setting groove 1622 on the surface of adsorption layer 162
When, coating die head 20 also can the adsorption layer 162 of pair roller 16 extruded.
Mobile device includes the first power source, and the first power source is used to drive mobile device to move, to drive wiping arrangement
10 move between first position A and second place B.Roller 16 is rotated when being wiped to coating die head 20, the first power source drive
Wiping arrangement 10 is moved relative to coating die head 20 simultaneously, and the speed of the movement is 2-20m/min.Preferably, mobile device is also
Including the second power source and the 3rd power source.Second power source and the 3rd power source drive wiping arrangement 10 perpendicular to respectively
The direction movement of the straight line between one position A and second place B.And first mobile device, the second mobile device and the 3rd movement
The direction of device movement is mutually perpendicular to.Three-dimensional system of coordinate such as is set up in space, reference axis is respectively x-axis, y-axis and z-axis, and x-axis,
Y-axis, z-axis is mutually perpendicular to, then the first power source, and parallel x-axis, y are distinguished in the direction that the second power source and the 3rd power source are moved
A reference axis in axle or z-axis.It is appreciated that can also make the first power source, the second power source and the 3rd power source drive and wipe
The direction out of plumb of the movement of device 10 is wiped, the Multidirectional-moving of wiping arrangement 10 can be also driven, i.e., moved along space three-dimensional degree direction
It is dynamic.It is appreciated that mobile device can omit setting, coating die head 20 moves to the position of wiping arrangement 10, and coating die head 20 continues
It is mobile, so that wiping arrangement 10 is wiped to coating die head 20.
Preferably, mobile device also includes control module, the control module and the first power source, the second power source, the
Three power sources are electrically connected with.In clearance slits coating, when coating die head 20 stops coating, the control module control the of mobile device
One power source, the second power source and the 3rd power source are operated, and make mobile device drive wiping arrangement 10 to move to coating die head 20
Position, wiping arrangement 10 is wiped to coating die head, and wiping arrangement 10 is moved between A and B, wiping arrangement 10
Rotatably coating die head is all wiped.Before coating die head 20 is coated again, control module control wiping arrangement 10
Return to original position.When coating die head 20 stops coating again, control module repeats above-mentioned work.
The present invention also provides a kind of coating machine, it uses previously described coating die head Wiping mechanism, this coating equipment
Have the advantages that clearance slits coating accuracy can be made high.
Fig. 6 is referred to, the present invention also provides a kind of method for wiping coating die head, its coating for being used to wipe gap coating
Die head, prevents the coating fluid on die lip surface on coating die head from solidifying, and the method for the wiping coating die head is comprised the following steps：
Step S1：When coating die head stops being coated with, by the die lip outer surface of the coating die head and the appearance of a roller
Face contacts, or coating die head squeezing roller makes roller surface deformation；
Step S2：The roller is rotated to wipe the die lip outer surface of coating die head；
Step S3：The roller for rotating is moved, roller rotatably moves to wipe coating die head.
In step sl, when coating die head puts in roller, namely the outer surface of coating die head pair roller is extruded, so that
Make roller outer surface depressions.Preferably, the depth of the depression is 1-20mm, more preferably 5-15mm.Selected as one kind
Select, also can set groove in the outer surface radial direction ring of roller, groove is around the outer surface of roller, so that coating die head is located at groove
It is interior.Preferably, the shape and coating die head of groove match.Preferably, also include making roller adsorb wiping solution before wiping
Step, wiping solution has the property for dissolving coating fluid, i.e. wiping solution equivalent to a kind of solvent, wiping solution and coating fluid solidification or
During the solid contact of precipitation, the solid dissolving that wiping solution can solidify coating fluid or separate out, so that coating fluid does not separate out solid,
Do not solidify, so as to decrease or even eliminate the solidification of coating fluid.
In step s 2, swing roller enables roller to be carried out to the die lip outer surface of coating die head with the wiping solution of absorption
Wipe, so as to decrease or even eliminate the solidification of coating fluid, improve the quality of gap coating, extend the working time of coating die head,
Production efficiency is improve, and then reduces coating cost.Roller is rotated to wipe during coating die head, and the rotating speed of the roller is
0.5-5r/min。
In step s3, coating die head is rotatably moved, and the die lip all outer surfaces of coating die head can be all wiped
Wipe.It is appreciated that step S3 can be omitted, coating die head Wiping mechanism can also wipe coating die head, and coating die head is moved and is coated with
Die head Wiping mechanism is motionless, it is also possible to which coating die head is all wiped.
Compared with prior art, coating die head Wiping mechanism of the invention includes rotatable roller, and coating die head stops
During coating, the roller and coating die head are contacted, and roller is rotated so as to the die lip to coating die head is wiped, and makes to remain in painting
The coating fluid dissolving of cloth die lip outer surface, is prevented from coating fluid and solidifies to form particle packing on coating die head or straight
The die lip for blocking coating die head is connect, the quality of clearance slits coating is improved, roller is rotated can be such that wiping effect further improves,
Further improve coating quality.
Coating die head Wiping mechanism of the invention also includes the liquid bath equipped with wiping solution, and the roller is located on the liquid bath
Fang Bingke is adsorbed on roller relative to liquid bath movement with by wiping solution, roller rotate when so as to wiping solution to coating die head
Wiped, and wiping solution is applied on the die lip of coating die head, wiping solution is carried out to the coating fluid on coating die head die lip
Dissolving, so that coating fluid does not separate out solid, does not solidify, and so as to decrease or even eliminate the solidification of coating fluid, improves gap coating
Quality, extend coating die head working time, improve production efficiency, and then reduce coating cost.
Roller of the invention includes adsorption layer and hard layer, and the adsorption layer is surrounded on hard layer, and the adsorption layer will
Wiping solution is adsorbed, and when the roller is rotated, the adsorption layer for adsorbing wiping solution is wiped to coating die head, so that wiping solution can be more
Many is applied on the die lip of coating die head, and the quality for being coated with gap is further improved.
Roller of the invention is rotated when being wiped to coating die head, and the coating die head extruding adsorption layer causes to be squeezed laminate section
Adsorption layer is recessed, and the depth of the depression is 1-20mm, and the frictional force between adsorption layer and coating die head is bigger, makes wiping effect more
It is good, and unnecessary coating fluid can either be wiped, and more wiping solutions can be smeared on the die lip of coating die head, make coating fluid
Solidification is less susceptible to, the quality of clearance slits coating is further improved.
The surface of adsorption layer of the invention is radially equipped with groove, and the groove shapes and coating die head match, institute
Roller is stated to rotate when wiping coating die head, the coating die head in groove so that groove more agrees with coating die head
Die lip, makes wiping effect more preferable.
Roller of the invention alternate rotation clockwise and anticlockwise, wipes the die lip of coating die head from different directions, makes
Wiping effect is more preferable.
Coating machine of the invention employs above-mentioned coating die head Wiping mechanism, is prevented from coating fluid and solidifies to form particle
The die lip of coating die head is deposited on the die lip of coating die head or directly blocked, the quality of gap coating is improved, roller is rotated
Wiping effect can be made further to improve, further improve coating quality.
The method for wiping coating die head of the invention includes step：When coating die head stops being coated with, by the coating mould
The outer surface contact of the die lip outer surface and a roller of head, or coating die head squeezing roller makes roller surface deformation；Rotation is described
Roller is wiping the die lip outer surface of coating die head.
To wipe during coating die head, the rotating speed of the roller is 0.5-5r/min to swing roller of the invention, and this speed turns
The dynamic coating die head that wipes is just right, because roller and coating die head friction are so as to produce substantial amounts of heat, and then will not reduce coating mould
The life-span of head.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in original of the invention
Any modification made within then, equivalent and improvement etc. all should be comprising within protection scope of the present invention.
Claims (10)
1. a kind of coating die head Wiping mechanism, it is used to wipe the coating die head for clearance slits coating, the coating die head bag
Include the die lip of coating fluid, it is characterised in that：The coating die head Wiping mechanism includes rotatable roller, and coating die head stops applying
During cloth, the roller and coating die head are contacted, and roller is rotated so as to the die lip to coating die head is wiped, and makes to remain in coating
The coating fluid dissolving of die lip outer surface.
2. coating die head Wiping mechanism as claimed in claim 1, it is characterised in that：The coating die head Wiping mechanism also includes
Liquid bath equipped with wiping solution, the roller is located at liquid bath top and can be adsorbed in roller with by wiping solution relative to liquid bath movement
On.
3. coating die head Wiping mechanism as claimed in claim 2, it is characterised in that：The roller includes adsorption layer and hard
Layer, the adsorption layer is surrounded on hard layer, and the adsorption layer adsorbs wiping solution, when the roller is rotated, adsorbs wiping solution
Adsorption layer the die lip of coating die head is wiped.
4. the coating die head Wiping mechanism as described in claim any one of 1-3, it is characterised in that：The roller is rotated to coating
When die head is wiped, the outer surface of the adsorption layer and the die lip outer surface of coating die head are tangent.
5. coating die head Wiping mechanism as claimed in claim 3, it is characterised in that：The roller rotates and coating die head is wiped
When, the coating die head extruding adsorption layer causes to be extruded partial adsorbates layer depression, and the depth of the depression is 1-20mm.
6. coating die head Wiping mechanism as claimed in claim 3, it is characterised in that：Radially ring sets on the surface of the adsorption layer
Fluted, the groove shapes and coating die head match, and the roller is rotated when being wiped to coating die head, the coating die head
In groove.
7. coating die head Wiping mechanism as claimed in claim 1, it is characterised in that：The roller replaces clockwise and anticlockwise
Rotate.
8. a kind of coating machine, it is characterised in that：The coating machine is employed such as claim 1-3, the coating described in any one of 5-7
Die head Wiping mechanism.
9. it is a kind of wipe coating die head method, it is characterised in that step includes：When coating die head stops being coated with, will be described
The outer surface contact of the die lip outer surface and a roller of coating die head, or coating die head squeezing roller makes roller surface deformation；Rotation
Turn the roller to wipe the die lip outer surface of coating die head.
10. the method for wiping coating die head as claimed in claim 9, it is characterised in that：The roller is rotated to wipe coating
During the die lip outer surface of die head, the rotating speed of the roller is 0.5-5r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611245430.5A CN106733463A (en) | 2016-12-29 | 2016-12-29 | Coating die head Wiping mechanism and coating machine and the method for wiping coating die head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611245430.5A CN106733463A (en) | 2016-12-29 | 2016-12-29 | Coating die head Wiping mechanism and coating machine and the method for wiping coating die head |
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| CN106733463A true CN106733463A (en) | 2017-05-31 |
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| CN201611245430.5A Pending CN106733463A (en) | 2016-12-29 | 2016-12-29 | Coating die head Wiping mechanism and coating machine and the method for wiping coating die head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Application publication date: 20170531 |