CN110154427A - A kind of production equipment of PVC film - Google Patents
A kind of production equipment of PVC film Download PDFInfo
- Publication number
- CN110154427A CN110154427A CN201910293530.2A CN201910293530A CN110154427A CN 110154427 A CN110154427 A CN 110154427A CN 201910293530 A CN201910293530 A CN 201910293530A CN 110154427 A CN110154427 A CN 110154427A
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- Prior art keywords
- cutting
- speed mixer
- cylinder
- coiling machine
- production equipment
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- 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
- B29D7/01—Films or sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention relates to a kind of production equipments of PVC film, it includes mixing system, mixing system, automatic metering system, high-speed mixer, low-speed mixer, planetary extruder, filters extruder, rolls turbine, calender, cooling roller group, coiling machine, cutting means, weighing unit and storage rack.Mixing system, automatic metering system, high-speed mixer and low-speed mixer are equipped with multiple groups, produce the machine that different films uses different groups, avoid pollution of the non-environmental protection material to environmentally friendly material.The cutting means of coiling machine, which pass through, is arranged two-part loading line to cutting cylinder, one section is air inlet pipeline, it is integrally pushed up into together with cylinder body close to film for cylinder will to be cut, and another section is impact pipeline, biggish instant impact can be provided to piston rod, to guarantee the speed and quality of cutting.Film roll is stored on three-dimensional storage rack, and film roll can be realized to three-dimensional storage, take full advantage of workshop space, improves the storage quantity of product.
Description
Technical field
The present invention relates to a kind of production equipments of PVC film, belong to membrane production equipment technical field.
Background technique
Polyvinyl chloride resin polyvinyl chloride resin can be processed into various plastic products, and it is big to be divided into soft and hard tough products two by its purposes
Class, mainly for the production of slide, pipe fitting, gold card, blood transfusion equipment, soft, hard tube, plate, door and window, profile shapes, film, electrical isolation
Material, cable cover(ing), blood transfusion material etc..
After polyvinyl chloride resin is mixed with additive, is plasticized, the PVC that the transparent of specific thickness or coloring is made using calender is thin
Film, film processed, becomes calendered film in this way.It can also be by cutting out, heat seal processing and packing bag, raincoat, tablecloth, window
The transparent membrane of curtain, inflatable toys etc., wide cut can be used for greenhouse, vinyl house and mulch, the film through biaxial tension, institute
The characteristic of heat shrinkable can be used for shrink-wraping.
These PVC films need to use in process of production mixing, stirring, extrusion, calendering, cooling, batch, cut, depositing
The production equipment put processes it.And mixing system in original production equipment, automatic metering system, high-speed mixer and
Low-speed mixer only has one group, the machine that different films uses different groups is produced, because of environment-friendlythin thin film and non-environmental protection film
The material used is different, and the material that non-environmental protection film uses is easy to cause pollution, affects the final product quality of environment-friendlythin thin film volume.
In addition the feed rate of the charging system of original planetary extruder is not high, and arch formation is easy to appear in hopper,
Cause PVC that may be burnt in feeding device.
And the cutting cylinder of coiling machine cutter only has single air inlet pipeline, when cylinder piston rod travels up to end
Power reduce, the stroke of such cylinder is too long to will lead to the speed that impact force when it advances to end is smaller, when cutting to film
Degree is slower, fly-cutting can not be carried out to film, or even generate cutting wire drawing phenomena impair cut quality, reduces product winding matter
Amount.It (is originally that single-stroke impact cutting is changed to two-stroke impact cutting now, the small cut quality of single-stroke impact force exists not
It is sufficient, it is first to be raised slowly to half way with small air pressure if two-stroke, is impacted and cut with normal barometric pressure again after pausing slightly, in this way
Cut impact force more greatly, and cut quality is good.)
In order to guarantee that product quality cannot stack placement after the completion of film roll production, just occupied after separated more
Workshop space is stored negligible amounts, and is stored in a jumble, and the storage and collection of film roll are unfavorable for.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide can be avoided polluted product, cut quality is higher, improves and produces
Quality, a kind of production equipment for the PVC film for facilitating product storage to collect.
The object of the present invention is achieved like this:
A kind of production equipment of PVC film, it includes mixing system, mixing system, automatic metering system, high-speed stirred
Machine, planetary extruder, filters extruder, rolls turbine, calender, cooling roller group, coiling machine, cutting means, title low-speed mixer
Weight platform and storage rack；
Multiple feeding chambers are equipped in the mixing system, feeding chamber is former to addition inside it by conveying system and charge pipe
Material, the bottom discharge pipe of the mixing system are connected in automatic metering system, and blending bucket is had in the automatic metering system, are mixed
Feed hopper bottom has weighing system, and material is sent into progress High Temperature Disperse in the high-speed mixer of lower section after weighing system weighing and is mixed
It closes, the lower section of the high-speed mixer is connected with low-speed mixer；
The bottom of the low-speed mixer is connected with the feed inlet of planetary extruder, the discharge port of the planetary extruder with
Filtering squeezes out machine inlet and is connected, and the discharge port for filtering extruder is connected with turbine is rolled, and rolls turbine rear end and is connected with calender, institute
The rear road of calender is stated as cooling roller group, the film after calendering formation completes cooling and shaping after the cooling roller group of a row passes through, and
It is sent on the coiling machine in rear road and carries out following process；
The back segment of coiling machine is equipped with cutting means, and the cutting means are fixed on the back segment of coiling machine rack, this cuts dress
It sets including cutter, the lower section of the cutter is equipped with cutting cylinder, and the bottom of the piston rod and cutter that cut cylinder is fixed,
The cylinder part of the cutting cylinder is located in fluctuating orbit, the cylinder body of the cutting cylinder and air inlet pipeline, outlet pipe, impact
Pipeline is connected, and the air inlet pipeline, outlet pipe, impact tube road are respectively equipped with intake valve, air outlet valve, dash valve for controlling
The on-off of pipeline, wherein air inlet pipeline moves up and down in fluctuating orbit for controlling cutting cylinder, and the impact pipeline is used for
When cutting cylinder and rising to the top in fluctuating orbit, control piston rod is released, and outlet pipe is then used to make gas discharge
Piston rod and cylinder return；
It is provided with weighing unit on rear side of the coiling machine, is provided with storage rack on rear side of weighing unit, completes the film batched
Roller is transported on the storage rack in rear road, and the storage rack is Three-dimensional storage rack, including bracket, the bracket are vertically arranged, the branch
Frame is in doorframe shape, and a chain is respectively arranged at left and right sides of bracket, and the transmission direction of the chain is vertical direction, chain
Top and bottom driven by sprocket wheel, sprocket wheel is provided with multiple fixations between the chain of the left and right two by motor driven
The both ends of axis, fixing axle are through in the chain hole of chain, and with one lifting of chain, the centre of fixing axle is fixed with suspension hook, hangs
Hook is arranged straight down, and the eave tile of suspension hook is upward, for fixing the roll shaft of finished product film roll.
The mixing system, automatic metering system, high-speed mixer and low-speed mixer are equipped with multiple groups.
The calender is five roll calendars, and each roller is mirror surface stack.
The coiling machine is double-station central coiling machine.
The end of the coiling machine is equipped with wind-up roll, and cutting means are between wind-up roll and rack back segment.
Sawtooth is had on the cutter of the cutting means, sawtooth is against film bottom.
The cutter surface is provided with graduated scale.
The outside of the storage rack is provided with fence.
Compared with prior art, the beneficial effects of the present invention are:
Mixing system, automatic metering system, high-speed mixer and low-speed mixer in a kind of this production equipment of PVC film
Multiple groups are equipped with, the machine that different films uses different groups are produced, because of the material that environment-friendlythin thin film and non-environmental protection film use
Difference, the material that non-environmental protection film uses is easy to cause pollution, therefore non-environmental protection material and environmentally friendly material use different equipment,
Different charging systems is walked, is just avoided that pollution of the non-environmental protection material to environmentally friendly material in this way, is also convenient for carrying out environment-friendlythin thin film
When production, cleaning maintenance is carried out to non-environmental protection membrane production equipment.
The extrusion system of planetary extruder is made of feeding section and planet section, and the machine barrel of feeding section part is equipped with water cooling system
System, while having thermal insulation layer with planet section barrel connection, prevent the temperature of two sections of machine barrels from influencing each other；Planet section is designed to two
Segmentation, centre setting central dispersion, central dispersion can increase back pressure, and strength imparting material shearing makes material start to melt earlier, also can be improved
Mixing and exhaust performance.
The charging system of planetary extruder has sufficiently large feed rate, can prevent hopper using feeding device is forced
In there is arch formation, can avoid PVC burnt in feeding device.
The cutting means of coiling machine, which pass through, is arranged two-part loading line to cutting cylinder, and one section is air inlet pipeline, is used for
Cutting cylinder is integrally pushed up into close to film together with cylinder body, and another section is impact pipeline, can be provided to piston rod
Biggish instant impact guarantees the speed and quality of cutting to complete fly-cutting.
Film roll is stored on three-dimensional storage rack, and two end-rack of film roll is on the suspension hook of storage rack fixing axle, suspension hook
Film roll can be realized three-dimensional storage, take full advantage of workshop space, improve product by the rise and fall together with chain
Store quantity.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the production equipment of PVC film of the present invention.
Fig. 2 is the structural schematic diagram of cutting means in Fig. 1.
Fig. 3 is the pipeline connecting figure of the cutting cylinder of cutting means in Fig. 2.
Fig. 4 is the structural schematic diagram of storage rack in Fig. 1.
Wherein: mixing system 1, feeding chamber 1.1, charge pipe 1.2, automatic metering system 2, blending bucket 2.1, weighing system
2.2, high-speed mixer 3, low-speed mixer 4, planetary extruder 5, filtering extruder 6, roll turbine 7, calender 8, cooling roller group
9, coiling machine 10, cutting means 11, cutter 11.1, graduated scale 11.2, cutting cylinder 11.3, fluctuating orbit 11.4, air inlet pipe
Road 11.5, outlet pipe 11.6, impact pipeline 11.7, intake valve 11.8, air outlet valve 11.9, dash valve 11.10, weighing unit 12,
Storage rack 13, bracket 13.1, chain 13.2, sprocket wheel 13.3, motor 13.4, fixing axle 13.5, suspension hook 13.6.
Specific embodiment
Referring to Fig. 1 to Fig. 4, the present invention relates to a kind of production equipment of PVC film, including mixing system 1, mixing system 1,
Automatic metering system 2, low-speed mixer 4, planetary extruder 5, filtering extruder 6, rolls turbine 7, calender at high-speed mixer 3
8, cooling roller group 9, coiling machine 10, cutting means 11, weighing unit 12 and storage rack 13.
Multiple feeding chambers 1.1 are equipped in the mixing system 1, feeding chamber 1.1 passes through conveying system and charge pipe 1.2 to its
The plurality of raw materials such as PVC powder, plasticizer, heat stabilizer, lubricant, fire retardant, UV resistant agent, the mixing system is added in inside
1 bottom discharge pipe is connected in automatic metering system 2, and blending bucket 2.1,2.1 bottom of blending bucket are had in the automatic metering system 2
Portion has weighing system 2.2, and material is sent into the high-speed mixer 3 of lower section after weighing and carries out High Temperature Disperse by weighing system 2.2
Mixing, the lower section of the high-speed mixer 3 are connected with low-speed mixer 4, and low-speed mixer 4 is for stirring material low speed cooling
Expansion powder is obtained to discharge.
The mixing system 1, automatic metering system 2, high-speed mixer 3 and low-speed mixer 4 are equipped with multiple groups, and production is not
Same film uses different groups of machine, because the material that environment-friendlythin thin film and non-environmental protection film use is different, non-environmental protection film is adopted
Material is easy to cause pollution, therefore non-environmental protection material and environmentally friendly material use different equipment, walk different charging systems,
It is just avoided that pollution of the non-environmental protection material to environmentally friendly material in this way, is also convenient for when carrying out environment-friendlythin thin film production, it is thin to non-environmental protection
Membrane production equipment carries out cleaning maintenance.
The bottom of the low-speed mixer 4 is connected with the feed inlet of planetary extruder 5, which is squeezed by planet
Machine rotation system, extrusion system, charging system and temperature control system composition out, for being plasticized powder at sizing material, wherein squeezing system
System is most important part, it is made of feeding section and planet section, and feeding section is equivalent to the charging of common single screw extrusion machine
The machine barrel of section, feeding section part is equipped with water-cooling system, while having thermal insulation layer with planet section barrel connection, prevents two sections of machine barrels
Temperature influence each other；Planet section primarily serves the effect for being kneaded material melts plasticizing.Planet section is designed to two-part, intermediate
Central dispersion is set, and central dispersion can increase back pressure, and strength imparting material shearing makes material start to melt earlier, mixing and row also can be improved
Gas performance.The charging system of planetary extruder 5 has sufficiently large feed rate, can prevent hopper using feeding device is forced
In there is arch formation, can avoid PVC burnt in feeding device.
The discharge port of the planetary extruder 5 is connected with filtering 6 feed inlet of extruder, filters extruder 6 for the miscellaneous of sizing material
Matter removes, and obtains no particle sizing material, and the discharge port of filtering extruder 6 is connected with turbine 7 is rolled, and rolls 7 rear end of turbine and 8 phase of calender
Even, for preheating sizing material before calendering formation, promote molding, the calender 8 is five roll calendars, and each roller is equal
For mirror surface stack, for sizing material to be preferably rolled into laminated structure, the rear road of the calender 8 is cooling roller group 9, calendering
Film after molding completes cooling and shaping after the cooling roller group 9 of a row passes through, and be sent on the coiling machine 10 in rear road carry out it is subsequent
Processing, the coiling machine 10 are double-station central coiling machine, and the back segment of coiling machine 10 is equipped with cutting means 11, for PVC is thin
After film severing by film take-up on roll shaft.
The cutting means 11 are fixed on the back segment of 10 rack of coiling machine, and the end of coiling machine 10 is equipped with wind-up roll, cuts
Between wind-up roll and rack back segment, cutting means 11 are used to after film is batched Man Yigen winding up roller cut off device 11,
The cutting means 11 include cutter 11.1, have sawtooth on cutter 11.1, sawtooth is against film bottom, for cutting film
Disconnected, 11.1 surface of cutter is provided with graduated scale 11.2, can be convenient the cutting accuracy of observation film, the cutter 11.1
Lower section is equipped with cutting cylinder 11.3, and the bottom for cutting the piston rod and cutter 11.1 of cylinder 11.3 is fixed, for pushing cutting
Knife 11.1 carries out cutting film, and the cylinder part of the cutting cylinder 11.3 is located in fluctuating orbit 11.4, can be in fluctuating orbit
It moves up and down in 11.4, cylinder body and air inlet pipeline 11.5, outlet pipe 11.6, the impact pipeline 11.7 of the cutting cylinder 11.3
Be connected, the air inlet pipeline 11.5, outlet pipe 11.6, impact pipeline 11.7 on be respectively equipped with intake valve 11.8, air outlet valve
11.9, dash valve 11.10 is used for the on-off of control piper, and wherein air inlet pipeline 11.5 is being gone up and down for controlling cutting cylinder 11.3
It is moved up and down in track 11.4, the impact pipeline 11.7 is used to rise to the top in fluctuating orbit 11.4 in cutting cylinder 11.3
Piston rod is controlled when portion to release, so that 11.1 moment of cutter is released upwards, thus to film progress fly-cutting, and outlet
Pipeline 11.6 is then for making piston rod and cylinder return for gas discharge.This cutting means 11 pass through to be set to cutting cylinder 11.3
Two-part loading line is set, one section is air inlet pipeline 11.5, is integrally pushed up into for that will cut cylinder 11.3 together with cylinder body
Close to film, and another section is impact pipeline 11.7, can provide biggish instant impact to piston rod, to complete quick
Cutting guarantees the speed and quality of cutting, avoids previous cylinder and there was only single air inlet pipeline, stroke is too long to cause it to advance to
The problem of impact force is smaller when end, can not carry out fly-cutting to film, affect cutting speed and product quality.
The rear side of the coiling machine 10 is provided with weighing unit 12, for the film roll weighing after the completion of batching, weighing unit
12 rear side is provided with storage rack 13, and the film roll for completing to batch is transported on the storage rack 13 in rear road, and the storage rack 13 is
Three-dimensional storage rack, including bracket 13.1, the bracket are vertically arranged, which is in doorframe shape, bracket 13.1 or so two
Side is respectively arranged with a chain 13.2, and the transmission direction of the chain 13.2 is vertical direction, the top and bottom of chain 13.2
Portion is driven by sprocket wheel 13.3, and sprocket wheel 13.3 is driven by motor 13.4, is provided between the chain 13.2 of the left and right two more
A fixing axle 13.5, the both ends of fixing axle 13.5 are through in the chain hole of chain 13.2, can with 13.2 1 lifting of chain,
The centre of fixing axle 13.5 is fixed with suspension hook 13.6, and suspension hook 13.6 is arranged straight down, and the eave tile of suspension hook 13.6 is upward, for solid
The roll shaft of finished films roller is determined, so that three-dimensional storage is completed, and fence can also be arranged in the outside of storage rack, for preventing
Film roll falls the peril of initiation.
A kind of this application method of the production equipment of PVC film are as follows:
1) according to weight percent by high-k PVC powder, plasticizer, heat stabilizer, fumed silica, lubricant is fire-retardant
Agent, in UV resistant agent and TPU investment mixing system, wherein insulation agent sheet is as nanoscale ATO, in process of production the group of having
Poly- phenomenon not only influences the service efficiency of insulation agent, more influences the light transmittance of product, therefore uses epoxidized soybean oil for carrier, will
Insulation agent and UV resistant agent impregnate together is ground to pulpous state, substantially increases the dispersibility of insulation agent, improves insulation agent
20% or more service efficiency, while greatly reducing the influence to product light transmittance.
2) it is sent into automatic weighing system and weighs after the completion of mixing, and be sent into after high-speed mixer is warming up to 50 DEG C and carry out height
Material until the temperature in high-speed mixer reaches 105 DEG C, then is passed through low speed cooling and stirred to after 30 DEG C by warm dispersion mixing
It discharges to expansion powder.
3) expansion powder is passed through planetary extruder, and powder is plasticized into sizing material by planetary extruder, then passes through filtering extruder
The impurity in sizing material is removed, extrusion obtains no particle sizing material.
4) turbine will be rolled without particle sizing material and calender is rolled into laminated structure, then pass sequentially through the ultraphotic of calender
Bright mirror surface knurling rolls, cooling roller group is cooling, and the carrying out of coiling machine batches collection.
5) it batches after completing what a film roll, carries out film cutting by cutting means, air inlet pipeline will cut cylinder
It is integrally pushed up into together with cylinder body close to film, then impacts pipeline to piston rod and biggish instant impact is provided, thus
Fly-cutting is completed, guarantees the speed and quality of cutting.
6) film after the completion of cutting completes winding, is placed on storage rack after being weighed by weighing unit, the suspension hook of storage rack
Film roll is hung, then is transported it upwards with motor and chain, so as to the more finished films roller of stereo-parking.
Claims (8)
1. a kind of production equipment of PVC film, it is characterised in that: it include mixing system, mixing system, automatic metering system,
High-speed mixer, planetary extruder, filters extruder, rolls turbine, calender, cooling roller group, coiling machine, sanction low-speed mixer
Cutting apparatus, weighing unit and storage rack；
Be equipped with multiple feeding chambers in the mixing system, feeding chamber by conveying system and charge pipe to raw material is added inside it,
The bottom discharge pipe of the mixing system is connected in automatic metering system, and blending bucket, mixing are had in the automatic metering system
Bottom struggle against with weighing system, High Temperature Disperse will be carried out in the high-speed mixer of material feeding lower section after weighing system weighing and mixed
It closes, the lower section of the high-speed mixer is connected with low-speed mixer；
The bottom of the low-speed mixer is connected with the feed inlet of planetary extruder, the discharge port of the planetary extruder and filtering
Machine inlet is squeezed out to be connected, the discharge port for filtering extruder is connected with turbine is rolled, and it rolls turbine rear end and is connected with calender, the pressure
The road Yan Jihou is cooling roller group, and the film after calendering formation completes cooling and shaping after the cooling roller group of a row passes through, and is sent to
Following process is carried out on the coiling machine in road afterwards；
The back segment of coiling machine is equipped with cutting means, and the cutting means are fixed on the back segment of coiling machine rack, the cutting means packet
Cutter are included, the lower section of the cutter is equipped with cutting cylinder, and the bottom of the piston rod and cutter that cut cylinder is fixed, this is cut
The cylinder part for cutting cylinder is located in fluctuating orbit, cylinder body and air inlet pipeline, outlet pipe, the impact pipeline of the cutting cylinder
It is connected, the air inlet pipeline, outlet pipe, impact tube road are respectively equipped with intake valve, air outlet valve, dash valve for control piper
On-off, wherein air inlet pipeline for control cutting cylinder moved up and down in fluctuating orbit, the impact pipeline be used for cutting
It cuts cylinder and rises to the control piston rod release at the top of fluctuating orbit, and outlet pipe is then used to gas discharge making piston
Bar and cylinder return；
It is provided with weighing unit on rear side of the coiling machine, is provided with storage rack on rear side of weighing unit, completes the film roll batched fortune
It is sent on the storage rack in rear road, the storage rack is Three-dimensional storage rack, including bracket, the bracket are vertically arranged, the bracket
In doorframe shape, a chain is respectively arranged at left and right sides of bracket, the transmission direction of the chain is vertical direction, the top of chain
Portion and bottom are driven by sprocket wheel, and sprocket wheel passes through motor driven, are provided with multiple fixing axles between the chain of the left and right two, Gu
The both ends of dead axle are through in the chain hole of chain, and with one lifting of chain, the centre of fixing axle is fixed with suspension hook, and suspension hook is vertical
Down-set, the eave tile of suspension hook is upward, for fixing the roll shaft of finished product film roll.
2. a kind of production equipment of PVC film according to claim 1, it is characterised in that: the mixing system, automatic meter
Amount system, high-speed mixer and low-speed mixer are equipped with multiple groups.
3. a kind of production equipment of PVC film according to claim 1, it is characterised in that: the calender is five roll-ins
Prolong machine, each roller is mirror surface stack.
4. a kind of production equipment of PVC film according to claim 1, it is characterised in that: the coiling machine is double-station
Central coiling machine.
5. a kind of production equipment of PVC film according to claim 1 or 4, it is characterised in that: the end of the coiling machine
Equipped with wind-up roll, cutting means are between wind-up roll and rack back segment.
6. a kind of production equipment of PVC film according to claim 1, it is characterised in that: the cutting of the cutting means
Sawtooth is had on knife, sawtooth is against film bottom.
7. a kind of production equipment of PVC film according to claim 1 or 6, it is characterised in that: the cutter surface is set
It is equipped with graduated scale.
8. a kind of production equipment of PVC film according to claim 1, it is characterised in that: the outside of the storage rack is set
It is equipped with fence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910293530.2A CN110154427A (en) | 2019-04-12 | 2019-04-12 | A kind of production equipment of PVC film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910293530.2A CN110154427A (en) | 2019-04-12 | 2019-04-12 | A kind of production equipment of PVC film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110154427A true CN110154427A (en) | 2019-08-23 |
Family
ID=67639231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910293530.2A Withdrawn CN110154427A (en) | 2019-04-12 | 2019-04-12 | A kind of production equipment of PVC film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110154427A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318903A (en) * | 2020-10-13 | 2021-02-05 | 广东雄星新材料有限公司 | Full-automatic production line and production process of frosted film |
| CN117140899A (en) * | 2023-07-06 | 2023-12-01 | 浙江金华天开电子材料有限公司 | Antistatic PVC coiled material is with automated production line |
-
2019
- 2019-04-12 CN CN201910293530.2A patent/CN110154427A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318903A (en) * | 2020-10-13 | 2021-02-05 | 广东雄星新材料有限公司 | Full-automatic production line and production process of frosted film |
| CN117140899A (en) * | 2023-07-06 | 2023-12-01 | 浙江金华天开电子材料有限公司 | Antistatic PVC coiled material is with automated production line |
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|---|---|---|---|
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190823 |
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| WW01 | Invention patent application withdrawn after publication |