CN109304877A - A kind of online texturizing method and its special production apparatus of PVC floor - Google Patents
A kind of online texturizing method and its special production apparatus of PVC floor Download PDFInfo
- Publication number
- CN109304877A CN109304877A CN201811381486.2A CN201811381486A CN109304877A CN 109304877 A CN109304877 A CN 109304877A CN 201811381486 A CN201811381486 A CN 201811381486A CN 109304877 A CN109304877 A CN 109304877A
- Authority
- CN
- China
- Prior art keywords
- pvc floor
- roller
- floor layer
- back side
- online
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
- B29C59/046—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts for layered or coated substantially flat surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The present invention relates to the online texturizing methods and its special production apparatus of a kind of PVC floor, the present invention, which passes through, will be used between the cooling and baking oven for the production technology for roller being arranged in PVC floor that the PVC floor layer back side embosses, and the face pressure line that throws one's back out is set on the periphery to roller, the back side of PVC floor layer is embossed, namely the present invention can print embossing at the back side of PVC floor layer using the waste heat of baking oven in PVC floor production technology, special heating and embossing are carried out to PVC floor layer without dedicated embossing machine, it realizes and PVC floor is embossed online in the production line of PVC floor, the energy is saved, reduce operator needed for PVC floor layer production process, improve the production efficiency of PVC floor layer, embossing to solve PVC floor in the prior art adds The low problem of work production efficiency.
Description
Technical field
The present invention relates to PVC floor production and processing technical field more particularly to a kind of PVC floor online texturizing method,
Also relate to the online texturizing method special production apparatus.
Background technique
Currently, have in the production technology of PVC floor there are two types of the mode of the decorative pattern printed on both sides in PVC floor, the first
Mode, during by coating and drying and foam to prepare PVC floor, the protrusion printed by release paper front is positive
Emboss the front printing pattern in PVC floor, and the PVC floor finished product when decorative pattern at the PVC floor back side, then after needing to wind
It unreels and special heating and embossing is carried out to PVC floor finished product on dedicated embossing machine, just can just be carried on the back and two-sided all be printed
There is the PVC floor of decorative pattern；The second way, when use just carry on the back it is two-sided all be the release paper of smooth surface as carrier manufacture PVC floor
When, after PVC floor finished product produces in production line to be completed and wind, need using special embossing machine in PVC floor
The just back of finished product is two-sided all to carry out Embossing processing, and in the process, embossing machine needs first to heat PVC floor finished product presses afterwards
The difference of embossing machine is in line, with first way, needs the just back to the finished product of PVC floor two-sided in the second way
Carry out embossed respectively, thus no matter using first way or the second way come processing PVC floor when, be required to adopt
PVC floor finished product first heat embossing afterwards with special embossing machine, that is, needs the heating by carrying on embossing machine
Device heats the surface to be embossed of PVC floor layer, so that the energy consumption of PVC floor production and processing is big, production
Low efficiency, equipment investment is big, and personnel's occupancy is big.
Summary of the invention
The invention proposes a kind of online texturizing methods of PVC floor, while it is dedicated to also proposed the online texturizing method
Process units, it is intended to solve the problems, such as that the Embossing processing production efficiency of PVC floor in the prior art is low.
The technical solution of the online texturizing method of PVC floor of the invention is as follows:
A kind of online texturizing method of PVC floor, comprising the following steps: step 1 coats PVC floor on release paper surface
After moulding material, each process is carried out to the release paper that surface is coated with PVC floor layer and is machined to foam；Step 2, by least
A pair embosses roller at the back side of the separate release paper of PVC floor layer, at least one of each pair of pair of roller in all pairs of rollers
Periphery be equipped with for needing the corresponding face pressure line that throws one's back out of the decorative pattern printed with the PVC floor layer back side；Step 3, cooling table
Face is coated with the release paper of PVC floor layer.
It is corresponding raised positive that the release recto is machined with the decorative pattern for needing to print with PVC floor layer front
Front protruding pattern in release paper is printed on the front of PVC floor by decorative pattern before step 3.
Further include the following steps after step 3: step 4 shells PVC floor layer from release recto
From；Step 5 heats the front of PVC floor layer, then is embossed by dandy roll in the front of PVC floor layer, institute
The outer peripheral surface for stating dandy roll is machined with for needing the corresponding protrusion front of the embossing printed to emboss with PVC floor layer front, so
It is afterwards that PVC floor layer is cooling.
The technical solution of the online texturizing method special production apparatus of PVC floor of the invention is as follows:
A kind of online texturizing method special production apparatus of PVC floor, it is described including the baking oven and cooling roller set gradually
Baking oven and cooling roller between be provided with the back side embossing of the back side embossing for separate the release paper in PVC floor layer and fill
Set, the back side Embosser includes at least a pair of to roller of relative spacing setting, in all pairs of rollers in each pair of pair of roller two
It is a between roller have for passed through for PVC floor layer and width be less than PVC floor layer thickness back side embossed channels, and
Two outer peripheral surfaces at least one in roller are equipped with for needing the corresponding face pressure that throws one's back out of the decorative pattern printed with PVC floor layer
Line.
The correcting roller of the moving direction for correcting PVC floor layer is additionally provided between the back side Embosser and baking oven
Wheel.
The back side Embosser further includes the back side adjustment mechanism for adjusting the width of the back side embossed channels, institute
The back side adjustment mechanism stated include be arranged on bracket and bracket for push two it is close to each other to roller with reduce the back side pressure
The back side force application apparatus of the width in line channel, the back side force application apparatus includes that the force screw rod set is revolved on bracket, described to apply
One end of power screw rod is connected in one of them the pair of to roller, and the other end is fixed with the hand for rotation urging screw rod
Wheel.
Described a pair includes the back side dandy roll of the decorative pattern of the protrusion being machined on outer peripheral surface and for padding to roller
It is placed on the smooth faced rubber roller at the back side of release paper.
The online texturizing method special production apparatus of the PVC floor further includes for being arranged in stripping off device and product volume
It takes between machine so that in the front Embosser of the front embossing of PVC floor layer, the front Embosser includes setting gradually
Front heating device for the front heating to PVC floor layer, the back side for PVC floor front embossing after the heating are padded
Roller and front dandy roll, for the cooling roller of the PVC floor layer after cooling embossing, on the outer peripheral surface of the front dandy roll
Be machined with and need to print the corresponding raised front decorative pattern of embossing for the front with PVC floor layer, the front dandy roll with
The back side pad roller between have for passed through for PVC floor layer and width be less than PVC floor layer front embossed channels.
The guidance of the moving direction for correcting PVC floor layer is equipped between the front dandy roll and front heating device
Roller.
The front Embosser further includes the front adjustment mechanism for adjusting the width of the front embossed channels, institute
The front adjustment mechanism stated includes being installed on support and support for the application of front dandy roll, rearwardly pad roller to be close
For radial force to reduce the front force application apparatus of the width of front embossed channels, the front force application apparatus includes for support
The lever rotated for fulcrum, one end of the lever are connected on the dandy roll of front, and the other end is hinged with for pushing and pulling lever
Around the brake cylinder or hydraulic cylinder of the rotation of its fulcrum.
The present invention pass through will be used for the PVC floor layer back side emboss to roller be arranged in PVC floor production technology it is cold
But between baking oven, that is, the present invention can utilize the waste heat of baking oven in the online texturizing method special production apparatus of PVC floor
Embossing is printed at the back side of PVC floor layer, special heating and embossing are carried out to PVC floor layer without dedicated embossing machine, it is real
Show and PVC floor has been embossed online in the production line of PVC floor, saved the energy, has reduced PVC floor layer and produced
Operator needed for journey, improves the production efficiency of PVC floor layer, to solve the pressure of PVC floor in the prior art
The low problem of line processing efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the partial enlargement structural representation in Fig. 1 at B；
Fig. 3 is the partial enlargement structural representation in Fig. 1 at C.
Specific embodiment
The embodiment 1 of the online texturizing method of PVC floor of the invention: the present embodiment is adapted to release using smooth surface front
Paper carrys out the production process on processing PVC floor as carrier application cladding process.The following steps are included: step 1, on release paper surface
After coating PVC floor moulding material, each process is carried out to the release paper that surface is coated with PVC floor layer and is machined to send out in baking oven
Bubble；Step 2 embosses roller at the back side of the separate release paper of PVC floor layer by least a pair of, every in all pairs of rollers
The face pressure that throws one's back out corresponding to the embossing being equipped with to one periphery in roller for needing to print with the PVC floor layer back side
Line；Step 3, cooling surface are coated with the release paper of PVC floor layer；Step 4, by PVC floor layer from release recto
Removing；Step 5 heats the front of PVC floor layer, then is embossed by dandy roll in the front of PVC floor layer,
The outer peripheral surface of the dandy roll is machined with for needing the corresponding protrusion front of the embossing printed to emboss with PVC floor layer front,
Then PVC floor layer is cooling.
When the present embodiment is in use, it can be changed according to the different demands of client to the protrusion embossing knot on roller and dandy roll
Structure, to solve that pattern kind in release paper is single and the simple disadvantage of decorative pattern.
The embodiment 2 of the online texturizing method of PVC floor of the invention: the present embodiment is adapted to the positive face pressure of PVC floor
Line is the embossing mode that the protrusion front embossing carried by release paper front is directly printed.With the online embossing side of PVC floor
The difference of the embodiment 1 of method is to eliminate step 4 and step 5 therein, but is machined with and is used in release recto
Raised front decorative pattern corresponding with the decorative pattern that PVC floor layer front needs to print, by the front in release paper before step 3
Protruding pattern is printed on the front of PVC floor.
In the above-described embodiments, it is raw to be suitable for the PVC floor using release paper as carrier for the online texturizing method of PVC floor
Production mode, in other embodiments, when not needing release paper as carrier in the production process of PVC floor, but by base
The positive and negative surface coating PVC floor moulding material of cloth is come (namely using base fabric as carrier, and base fabric is in when producing PVC floor
In the case where in the interlayer of PVC floor), it processing protrusion can also be embossed (i.e. to roller on the periphery to two rollers of roller
In two rollers periphery on be respectively provided with positive protrusion embossing and back side protrusion embossing), so as to by roller in PVC
The two sides of plate layer printing pattern simultaneously, that is, by two back sides of separate the base fabric of PVC floor while printing flower to roller
Line.
The embodiment of the online texturizing method special production apparatus of PVC floor of the invention: as shown in Figure 1 to Figure 3, should
The online texturizing method special production apparatus of PVC floor includes that PVC floor moulding material is coated in the release paper back side to be made
The production line 1 (prior art) of PVC floor layer, last group of baking oven 1-1 of production line 1 and cooling roller 1-2 it
Between the front Embosser 3 that is arranged between the back side Embosser 2 and stripping off device 1-3 and finished product coiling machine 1-4 that are arranged, institute
Stating back side Embosser 2 includes being placed on the positive front pad roller 2-1 of PVC floor layer 4, for the back from PVC floor layer 4 for padding
Face by PVC floor layer 4 be extruded in front pad roller 2-1 on embossed at the back side of PVC floor layer 4 back side dandy roll 2-2, be used for
The back side adjustment mechanism 2-4 of the width of the back side embossed channels 2-3 between back side dandy roll 2-2 and front pad roller 2-1 is adjusted,
In, front pad roller 2-1 is equipped with the rubber rolling of elastic rubber layer for periphery, and overleaf Embosser 2 and apparatus for baking 1-1
Between be additionally provided with correcting roller 2-5 for the moving direction of correcting PVC floor layer 4, overleaf on the outer peripheral surface of dandy roll 2-2
It is machined with for the face pressure line that throws one's back out in the back side of PVC floor layer 4 printing embossing, overleaf roller is padded in dandy roll 2-2 and front
Between 2-1 have for passed through for PVC floor layer 4 and width be less than PVC floor layer 4 thickness back side embossed channels 2-3；
Back side adjustment mechanism 2-4 includes being installed on bracket 2-6 and bracket 2-6 for rearwardly embossing to front pad roller 2-1 application
Roller 2-2 close radial force is to reduce the back side force application apparatus 2-7 of the width of back side embossed channels 2-3, the back side force application apparatus
2-7 includes that the force screw rod 2-8 set is revolved on bracket 2-6, radial direction and front of the one end for the screw rod 2-8 that exerts a force along front pad roller 2-1
Roller 2-1 transmission connection is padded, the other end is fixed with the handwheel 2-9 for rotation urging screw rod 2-8.
The front Embosser 3 includes the front heating dress for the front heating to PVC floor layer 4 set gradually
It sets 3-1, carried on the back for the back side pad roller 3-2 and front dandy roll 3-3 of the positive embossing of PVC floor layer 4 after the heating, for adjusting
Pad the front adjustment mechanism 3-5 of the width of the front embossed channels 3-4 between roller 3-2 and front dandy roll 3-3, for cooling down in face
The cooling roller 3-6 of PVC floor layer 4 after embossing, wherein it is the rubber that periphery is equipped with elastic rubber layer that roller 3-2 is padded at the back side
Roller, front heating device 3-1 are front heating mantles；It is equipped between front dandy roll 3-3 and front heating device 3-1 for leading
The guidance roller 3-7 of the moving direction of positive PVC floor layer 4；It is machined on the outer peripheral surface of front dandy roll 3-3 in PVC
The protrusion front embossing of the front printing embossing of plate layer 4, has between front dandy roll 3-3 and back side pad roller 3-2 for for PVC
Floor layer 4 pass through and width be less than PVC floor layer 4 thickness front embossed channels 3-4；Front adjustment mechanism 3-5 includes branch
Installed on seat 3-8 and support 3-8 for front dandy roll 3-3 apply rearwardly the close radial force of pad roller 3-2 roller with
Reduce the front force application apparatus 3-9 of the width of front embossed channels 3-4, front force application apparatus 3-9 includes that middle part rolling assembling exists
Lever 3-10 on support 3-8, one end of lever 3-10 are connected on the dandy roll 3-3 of front, and the other end is hinged with for pushing and pulling
The brake cylinder 3-11 that lever 3-10 is rotated around its fulcrum.
In the use of the present invention, the waste heat of baking oven in PVC floor production line is utilized, at the back side of PVC floor layer 4
Printing embossing, to realize the purpose embossed online.Special heating is carried out to PVC floor layer 4 without dedicated embossing machine, is saved
The about energy, reduces operator needed for 4 production process of PVC floor layer, improves the production efficiency of PVC floor layer 4,
To solve the problems, such as that the Embossing processing production efficiency of PVC floor in the prior art is low.
In the above-described embodiments, front Embosser is arranged between stripping off device and finished product coiling machine, in other implementations
In example, which can also be installed between baking oven and cooling roller, and the front in the Embosser of front is heated
Device and cooling roller removal, corresponding this kind of production technology are suitable for using base fabric for the PVC floor production technology of carrier, this
PVC floor layer is all had on the positive and negative surface of Shi Jibu, so that there are two the back sides for deviating from base fabric for PVC floor tool, it is thus possible to
Embossing is printed at two back sides of PVC floor by back side dandy roll.
It in the above-described embodiments, include front and back embossing dress in the online texturizing method special production apparatus of the PVC floor
It sets, in other embodiments, the front embossing dress in the online texturizing method special production apparatus of the PVC floor can also be removed
It sets, and the front embossing technique of PVC floor layer is placed in release paper, that is, the front protruding pattern in release paper is printed
On the front of PVC floor；When do not use release paper as PVC floor production in carrier, and use base fabric as carrier, and
When the positive and negative surface of base fabric all has PVC floor layer, front pad roller and back side dandy roll can also be equal in the Embosser of the back side
Setting protrusion embossing, that is, positive protrusion embossing is set on the outer periphery in front pad roller, thus just by back side Embosser
Can achieve the purpose that PVC floor layer just, back two sides while printing embossing.
In the above-described embodiments, front and back force application apparatus provides power by adjustment screw and brake cylinder respectively,
In other embodiments, two kinds of force application apparatus can also be replaced mutually, or brake cylinder is replaced with hydraulic cylinder or electronic is pushed away
Bar.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of online texturizing method of PVC floor, which comprises the following steps: step 1 applies on release paper surface
After covering PVC floor moulding material, each process is carried out to the release paper that surface is coated with PVC floor layer and is machined to foam；Step 2,
Roller is embossed at the back side of the separate release paper of PVC floor layer by least a pair of, in all pairs of rollers in each pair of pair of roller
The periphery of at least one is equipped with for needing the corresponding face pressure line that throws one's back out of the decorative pattern printed with the PVC floor layer back side；Step
Three, cooling surface is coated with the release paper of PVC floor layer.
2. the online texturizing method of PVC floor according to claim 1, which is characterized in that the release recto adds
Work has for needing the corresponding raised front decorative pattern of the decorative pattern printed with PVC floor layer front, by release paper before step 3
On front protruding pattern be printed on the front of PVC floor.
3. the online texturizing method of PVC floor according to claim 1, which is characterized in that further include in step 3 it
Following steps afterwards: step 4 removes PVC floor layer from release recto；Step 5, to the front of PVC floor layer
Heated, then embossed by dandy roll in the front of PVC floor layer, the outer peripheral surface of the dandy roll be machined with for
The corresponding protrusion front embossing of the embossing that PVC floor layer front needs to print, it is then that PVC floor layer is cooling.
4. a kind of online texturizing method special production apparatus of PVC floor, including the baking oven and cooling roller set gradually, feature
It is, the back of the back side embossing for the separate release paper in PVC floor layer is provided between the baking oven and cooling roller
Face Embosser, the back side Embosser includes at least a pair of to roller of relative spacing setting, each pair of right in all pairs of rollers
Two in roller between roller to having for passing through for PVC floor layer and the back side of thickness that width is less than PVC floor layer embosses
Channel, and the decorative pattern that two outer peripheral surfaces at least one in roller are equipped with for needing to print with PVC floor layer is corresponding convex
Back lifting face pressure line.
5. PVC floor according to claim 4 embosses process units online, which is characterized in that the back side Embosser
The correcting roller of the moving direction for correcting PVC floor layer is additionally provided between baking oven.
6. the online texturizing method special production apparatus of PVC floor according to claim 4, which is characterized in that the back side
Embosser further includes the back side adjustment mechanism for adjusting the width of the back side embossed channels, the back side adjustment mechanism
Including being arranged on bracket and bracket for pushing two back to reduce the width of back side embossed channels close to each other to roller
Face force application apparatus, the back side force application apparatus include that the force screw rod set is revolved on bracket, one end connection of the force screw rod
In one of them the pair of to roller, the other end is fixed with the handwheel for rotation urging screw rod.
7. the online texturizing method special production apparatus of PVC floor according to claim 4, which is characterized in that described one
To including being machined with the back side dandy roll of the decorative pattern of the protrusion on outer peripheral surface and for padding the back side for being placed on release paper to roller
Smooth faced rubber roller.
8. the online texturizing method special production apparatus of PVC floor according to any one of claims 4 to 7, feature
It is, the online texturizing method special production apparatus of the PVC floor further includes batching for being arranged in stripping off device and finished product
With in the front Embosser of the front embossing of PVC floor layer, the front Embosser includes the use set gradually between machine
Roller is padded at front heating device in the front heating to PVC floor layer, the back side for PVC floor front embossing after the heating
With front dandy roll, for the cooling roller of the PVC floor layer after cooling embossing, on the outer peripheral surface of the front dandy roll plus
Work has for raised front decorative pattern corresponding with the front needs printing embossing of PVC floor layer, the front dandy roll and back
Face pad roller between have for passed through for PVC floor layer and width be less than PVC floor layer front embossed channels.
9. the online texturizing method special production apparatus of PVC floor according to claim 8, which is characterized in that the front
The guidance roller of the moving direction for correcting PVC floor layer is equipped between dandy roll and front heating device.
10. the online texturizing method special production apparatus of PVC floor according to claim 8, which is characterized in that the front
Embosser further includes the front adjustment mechanism for adjusting the width of the front embossed channels, the front adjustment mechanism
Pad the close radial force of roller rearwardly for applying to front dandy roll including what is installed on support and support to reduce front
The front force application apparatus of the width of embossed channels, the front force application apparatus include the thick stick for being rotated using support as fulcrum
Bar, one end of the lever are connected on the dandy roll of front, and the other end is hinged with the system rotated for pushing and pulling lever around its fulcrum
It takes offence cylinder or hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381486.2A CN109304877A (en) | 2018-11-19 | 2018-11-19 | A kind of online texturizing method and its special production apparatus of PVC floor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381486.2A CN109304877A (en) | 2018-11-19 | 2018-11-19 | A kind of online texturizing method and its special production apparatus of PVC floor |
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| Publication Number | Publication Date |
|---|---|
| CN109304877A true CN109304877A (en) | 2019-02-05 |
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ID=65222138
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416278A (en) * | 2022-04-29 | 2022-12-02 | 惠州伟康新型建材有限公司 | Manufacturing equipment and method of PVC (polyvinyl chloride) floor |
-
2018
- 2018-11-19 CN CN201811381486.2A patent/CN109304877A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416278A (en) * | 2022-04-29 | 2022-12-02 | 惠州伟康新型建材有限公司 | Manufacturing equipment and method of PVC (polyvinyl chloride) floor |
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| CN211194901U (en) | Register device of membrane coining mill |
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Application publication date: 20190205 |