CN117507386B - PVC-PVDC composite film production equipment and production process - Google Patents
PVC-PVDC composite film production equipment and production process Download PDFInfo
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- CN117507386B CN117507386B CN202410012945.9A CN202410012945A CN117507386B CN 117507386 B CN117507386 B CN 117507386B CN 202410012945 A CN202410012945 A CN 202410012945A CN 117507386 B CN117507386 B CN 117507386B
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- 229920001328 Polyvinylidene chloride Polymers 0.000 title claims abstract description 58
- 239000005033 polyvinylidene chloride Substances 0.000 title claims abstract description 58
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000001035 drying Methods 0.000 claims abstract description 107
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 238000001816 cooling Methods 0.000 claims abstract description 83
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 230000001105 regulatory effect Effects 0.000 claims abstract description 48
- 239000000853 adhesive Substances 0.000 claims abstract description 43
- 230000001070 adhesive effect Effects 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 230000001276 controlling effect Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000010073 coating (rubber) Methods 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 31
- 230000033228 biological regulation Effects 0.000 claims description 13
- 238000004026 adhesive bonding Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 68
- 241000883990 Flabellum Species 0.000 description 11
- 230000000149 penetrating effect Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 8
- 238000013329 compounding Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0242—Heating, or preheating, e.g. drying
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0244—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The application discloses PVC-PVDC complex film production facility and production technology relates to the complex film field, and it includes the frame, is provided with first unreel mechanism, rubber coating mechanism, drying tunnel, second unreel mechanism, complex mechanism and winding mechanism in the frame, and the back and forth section is preheating zone, heating zone and cooling zone respectively in the drying tunnel, is provided with two gas flow dividing mechanism on the drying tunnel, and the gas in the heating zone gets into preheating zone and cooling zone respectively through two gas flow dividing mechanism, and gas flow dividing mechanism is used for regulating and controlling gas temperature and velocity of flow. According to the method, the drying tunnel is divided into the preheating zone, the heating zone and the cooling zone, hot air is firstly conveyed into the heating zone, and then is conveyed into the preheating zone and the cooling zone through the two gas splitting mechanisms, the temperature and the flow speed of the hot air can be regulated and controlled by the gas splitting mechanisms, so that the temperature and the air speed of the gas in different sections of the drying tunnel can be independently regulated, the drying effect of the adhesive cannot be influenced, and the bonding effect between PVC-PVDC composite film substrates is better.
Description
Technical Field
The application relates to the field of composite films, in particular to PVC-PVDC composite film production equipment and production process.
Background
The PVC film has excellent transparency and glossiness, also has better waterproof property and weather resistance, and the PVDC film has excellent barrier property and moisture resistance, so that the PVC-PVDC composite film has excellent transparency, waterproof property, weather resistance and moisture resistance, and is suitable for packaging films.
At present, a PVC-PVDC composite film is mostly manufactured by adopting a dry type composite process, a layer of solvent-type adhesive is coated on a PVC substrate by using composite film production equipment, the solvent in the solvent-type adhesive is removed from the PVC substrate through a drying tunnel, the adhesive is dried, and the PVC substrate is conveyed out of the drying tunnel and then is bonded with the PVDC substrate under a hot-pressing state to form the PVC-PVDC composite film.
Too low drying temperature in the drying tunnel can cause incomplete volatilization of the solvent in the adhesive; too high a drying temperature may cause bubbles to be generated in the adhesive or cause the adhesive surface to become conjunctival, preventing solvent evaporation; meanwhile, too high or too low a drying speed may affect the drying degree of the adhesive. Therefore, the temperature and the air speed in the front, middle and rear three sections of the drying tunnel play a decisive factor in drying the adhesive, and if the adhesive is insufficiently dried, the adhesiveness of the adhesive is lowered, thereby affecting the bonding effect between the composite film substrates.
However, in the existing composite film production equipment, the hot air device sends hot air into the drying tunnel, the temperature and the air speed in the drying tunnel can be adjusted by adjusting the hot air device, but the temperature and the air speed in the drying tunnel are uniformly adjusted, and the temperature and the air speed in different sections are difficult to be independently adjusted, so that the drying effect of the adhesive is affected, and the bonding effect between the composite film substrates is further affected.
Disclosure of Invention
In order to improve the drying effect of the adhesive, the application provides PVC-PVDC composite film production equipment and production process.
In a first aspect, the present application provides a PVC-PVDC composite film production apparatus, which adopts the following technical scheme:
the PVC-PVDC composite film production equipment comprises a rack, wherein a first unreeling mechanism, a gluing mechanism, a drying tunnel, a second unreeling mechanism, a compounding mechanism and a reeling mechanism are arranged on the rack, two partition boards are arranged in the drying tunnel, the two partition boards divide the front section of the drying tunnel into a preheating zone, the middle section of the drying tunnel into a heating zone and the rear section of the drying tunnel into a cooling zone, and a plurality of conveying rollers for conveying base materials are arranged in the drying tunnel; the drying tunnel is positioned above the heating area and is provided with a hot air conveying part, the output end of the hot air conveying part is provided with an air supply pipe connected with the heating area of the drying tunnel, and the drying tunnel is positioned in the heating area and is provided with a plurality of first air outlets connected with the air supply pipe; the drying tunnel is located in the heating area and is provided with two gas diversion mechanisms, the two gas diversion mechanisms are respectively connected with a preheating area and a cooling area of the drying tunnel, gas in the heating area respectively enters the preheating area and the cooling area through the two gas diversion mechanisms, the drying tunnel is located in the preheating area and the cooling area and is provided with a plurality of second air outlets connected with the gas diversion mechanisms, the gas diversion mechanisms are used for regulating and controlling the temperature and the flow rate of the gas, and the high-grade wind speed and the high-grade temperature are arranged in the heating area of the drying tunnel, the medium wind speed and the medium temperature are arranged in the preheating area, and the low-grade wind speed and the low-grade temperature are arranged in the cooling area.
Through adopting above-mentioned technical scheme, first unwinding mechanism carries the PVC substrate, and the gluing mechanism is with the adhesive coating on the PVC substrate, and the PVC substrate gets into the drying tunnel and carries out the drying to the adhesive, and the second unwinding mechanism carries PVDC substrate, and compounding mechanism presses the PVC substrate after drying in PVDC substrate and the drying tunnel into PVC-PVDC complex film, and the winding mechanism is reeled the complex film again, can accomplish the production of complex film. The preheating zone can gradually heat the adhesive and the PVC base material to reach proper temperature, so as to prepare for the subsequent drying stage, the heating zone can quickly evaporate moisture and solvent in the adhesive and dry the adhesive, and the cooling zone is used for gradually reducing the temperature of the adhesive and the PVC base material so as to reduce the occurrence of problems of the adhesive and the PVC base material caused by too quick cooling. The hot air conveying part conveys high-temperature high-flow-rate air into the heating area through the air supply pipe and the first air outlet nozzle, the air enters the preheating area and the cooling area through the two air distribution mechanisms and the second air outlet nozzle, and the air distribution mechanisms can regulate and control the temperature and the flow rate of the air, so that the temperature and the air speed of the air in different sections of the drying tunnel can be independently regulated, the drying effect of the adhesive cannot be influenced, and the bonding effect between PVC-PVDC composite film base materials is better.
Preferably, the gas flow dividing mechanism comprises a dividing pipe, a temperature regulating and controlling assembly and a wind speed regulating and controlling assembly, wherein one ends of the dividing pipe are connected with the heating area of the drying tunnel, the other ends of the dividing pipe are respectively connected with the preheating area and the cooling area of the drying tunnel, the temperature regulating and controlling assembly is arranged on the dividing pipe and used for regulating the temperature of gas in the dividing pipe, and the wind speed regulating and controlling assembly is arranged in the dividing pipe and used for regulating the flow rate of the gas in the dividing pipe.
By adopting the technical scheme, the gas in the heating area of the drying tunnel enters the preheating area and the cooling area respectively through the two shunt pipes, and the temperature regulating and controlling assembly and the air speed regulating and controlling assembly regulate and control the temperature and the flow speed of the gas in the shunt pipes, so that the temperature and the air speed of the gas in the heating area, the preheating area and the cooling area of the drying tunnel can be independently regulated.
Preferably, the temperature regulation and control assembly comprises a first fan blade, an air inlet pipe, a second fan blade, a transmission belt and a stop valve, wherein the first fan blade is coaxially rotated and arranged in the air supply pipe, one end of the air inlet pipe is communicated with the shunt pipe, the other end of the air inlet pipe is communicated with the outside, the second fan blade is coaxially rotated and arranged in the air inlet pipe, the transmission belt is sleeved on the rotating shafts of the first fan blade and the second fan blade and penetrates through the air supply pipe and the air inlet pipe, the stop valve is arranged in the shunt pipe, and the stop valve is positioned at the upstream of the air inlet pipe.
Through adopting above-mentioned technical scheme, gas drives first flabellum and rotates when flowing in the blast pipe, and first flabellum passes through the drive belt and drives the second flabellum and rotate in the air-supply line, and the second flabellum rotates and carries external cold air to the shunt tubes in from the air-supply line, and external cold air mixes with the steam in the shunt tubes to can cool down gas. The flow of the high-temperature gas in the split pipe is regulated by using the stop valve, and the air supply flow of the hot air conveying part is always kept constant, so that the air inlet flow of the air inlet pipe is always kept constant, and the passing flow of the hot air in the split pipe is regulated and controlled, so that the temperature of the mixed gas can be regulated and controlled, and the temperature of the gas in the preheating zone and the cooling zone can be freely regulated.
Preferably, the wind speed regulating and controlling assembly comprises a spiral blade, a stop block and a clamping assembly, wherein the spiral She Tongzhou is rotatably arranged in the shunt pipe and positioned at the downstream of the air inlet pipe, the two stop blocks are respectively arranged at two ends of the spiral She Zhuaizhou, the clamping assembly is arranged on the shunt pipe, and the clamping assembly is used for clamping the stop block.
Through adopting above-mentioned technical scheme, the gas impact after the mixing is on the spiral blade, and the spiral blade takes place to rotate, and the spiral flows when the mixed gas is through the spiral blade to can make the more even of low temperature gas and high temperature gas mixture. Use clamping assembly to press from both sides tight the dog, the dog is pressed from both sides tight back and is acted on the spiral leaf through the pivot for the rotation speed of spiral leaf slows down, and then can reduce the velocity of flow of gas, and through the regulation to the tight degree of dog clamp, can adjust the rotation speed of spiral leaf, make the velocity of flow of gas in preheating zone and the cooling zone freely adjustable.
Preferably, the clamping assembly comprises a rotary handle, two threaded rods, a sliding rod and a clamping block, wherein two first sliding grooves are formed in the shunt tube at intervals along the axial direction of the shunt tube, the two sliding rods are respectively arranged in the two first sliding grooves in a sliding mode and located on one sides of the two stop blocks, the clamping block is arranged at the end portion of the sliding rod located in the shunt tube and is abutted to the stop block, the threaded rods are arranged at the end portion of the sliding rod located outside the shunt tube, the spiral directions of the two threaded rods are opposite, and the two ends of the rotary handle are respectively sleeved at the end portions of the two threaded rods in a threaded mode.
By adopting the technical scheme, when the gas flow is required to be regulated, the rotary handle is rotated, the rotary handle drives the two slide bars to move in the first sliding groove through the two spiral bars, the two slide bars drive the two clamping blocks to synchronously move towards the direction close to or away from the stop block, when the clamping blocks move towards the direction close to the stop block, the friction force between the clamping blocks and the stop block is increased, the rotating speed of the spiral blades is reduced, and the flow rate of the gas is reduced; when the clamping block moves in the direction away from the stop block, the friction force between the clamping block and the stop block is reduced, the rotating speed of the spiral blade is increased, and the flow speed of gas is increased.
Preferably, the shunt tube is provided with the sliding seat on being located first spout, set up in the sliding seat with the second spout of first spout intercommunication, follow the sealed spacing perforation of slide bar direction of movement through set up with the second spout intercommunication in the sliding seat, all fixedly be provided with sealed spacing pole of wearing on the slide bar opposite both sides wall, two sealed spacing pole of wearing all slides along the slide bar direction of movement and sets up in sealed spacing perforation, and two sealed spacing pole of wearing is shutoff to the second spout.
Through adopting above-mentioned technical scheme, when removing the rotational speed of slide bar to the spiral leaf and adjusting, the slide bar slides in the first spout of shunt tubes and the second spout of sliding seat, and the slide bar drives two sealed spacing perforating bars and slides in sealed spacing perforation, and two sealed spacing perforating bars block up the second spout all the time in the slip process to make the intraductal steam of shunt can not follow first spout blowout, and then can not be scalded by the steam when making the staff rotate rotatory handle.
Preferably, the end part of the slide bar positioned in the shunt tube and positioned on the side wall close to the stop block are provided with elastic pieces, the clamping blocks are arranged on the elastic pieces, the side wall of the clamping block close to the slide bar is provided with a limiting rod, and the limiting rod is arranged in the slide bar in a sliding manner along the matching sliding mode of the moving direction of the clamping block.
Through adopting above-mentioned technical scheme, the slide bar passes through the elastic component and drives the clamp splice to support tight dog, along with the slide bar constantly moves towards being close to the dog direction, and the elastic component is constantly extruded, and the elastic potential energy of elastic component constantly increases, and the elastic potential energy of elastic component acts on the clamp splice for frictional force between clamp splice and the dog constantly increases, and then can adjust the rotational speed of spiral leaf. So set up, the slide bar acts on the clamp splice through the elastic component for the clamp splice supports tight dog, has increased the adjustable stroke of slide bar, thereby makes the regulation and control of wind speed regulation and control subassembly more accurate, simultaneously, the gag lever post is spacing for the clamp splice, makes the clamp splice be difficult for taking place the skew.
Preferably, an exhaust valve is arranged on the shunt pipe, and the exhaust valve is positioned at the downstream of the spiral blade.
By adopting the technical scheme, partial gas in the shunt pipe is discharged through the exhaust valve, so that the low-grade wind speed required in the cooling area and the medium wind speed required in the preheating area are conveniently met.
In a second aspect, the present application provides a production process of a PVC-PVDC composite film, which adopts the following technical scheme:
the PVC-PVDC composite film production process adopts the PVC-PVDC composite film production equipment, and comprises the following production steps: s1: the first unreeling mechanism conveys out the PVC base material; s2: the gluing mechanism coats an adhesive on the PVC base material; s3, conveying the PVC base material into a drying tunnel, and drying the adhesive by the drying tunnel; s4: the second unreeling mechanism conveys the PVDC substrate; s5: the composite mechanism presses the PVC substrate and the PVDC substrate into a PVC-PVDC composite film; s6: and the winding mechanism winds the PVC-PVDC composite film.
Through adopting above-mentioned technical scheme, first unwinding mechanism carries the PVC substrate, and the gluing mechanism is with the adhesive coating on the PVC substrate, and the PVC substrate gets into the drying tunnel and carries out the drying to the adhesive, and the second unwinding mechanism carries PVDC substrate, and compounding mechanism presses the PVC substrate after drying in PVDC substrate and the drying tunnel into PVC-PVDC complex film, and the winding mechanism is reeled the complex film again, can accomplish the production of complex film.
Preferably, before step S1, the temperature and the flow rate of the air in the preheating zone, the heating zone and the cooling zone of the drying tunnel are adjusted, and the hot air conveying member is adjusted so that the temperature and the air speed in the heating zone meet the standards; the stop valve and the rotary handle on the preheating zone are regulated, so that the temperature and the wind speed in the preheating zone meet the standards; firstly, a stop valve on the cooling area is adjusted to enable the temperature in the cooling area to meet the standard, then the rotary handle is adjusted to enable the wind speed in the cooling area to meet the standard, and when the spiral blade stops rotating and the wind speed in the cooling area does not meet the standard due to the fact that the wind speed required by the cooling area is low, the exhaust valve is adjusted, and the wind speed in the cooling area is reduced again until the wind speed in the cooling area meets the standard.
By adopting the technical scheme, the temperature and the wind speed in the preheating zone are adjusted firstly, then the temperature and the wind speed in the cooling zone are adjusted, and when the wind speed in the cooling zone does not meet the standard, the exhaust valve is used for continuously adjusting the wind speed of the cooling zone, so that the adjustment of the wind speed of the cooling zone is more accurate.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the inside of the drying tunnel is divided into the preheating zone, the heating zone and the cooling zone by the partition plates, hot air is firstly conveyed into the heating zone, and then conveyed into the preheating zone and the cooling zone by the two gas diversion mechanisms, the gas diversion mechanisms can regulate and control the temperature and the flow speed of the hot air, so that the temperature and the air speed of the gas in different sections of the drying tunnel can be independently regulated, the drying effect of the adhesive is not influenced, and the bonding effect between PVC-PVDC composite film substrates is better;
2. the flow rate of the high-temperature gas in the shunt tube is regulated by using the stop valve through adopting the temperature regulation and control assembly, and the air inlet flow rate of the air inlet pipe is always kept constant as the air supply flow rate of the hot air conveying piece is always kept constant, and the passing flow rate of the hot air in the shunt tube is regulated and controlled, so that the temperature of the mixed gas can be regulated and controlled, and the temperature of the gas in the preheating zone and the cooling zone can be freely regulated;
3. through adopting wind speed regulation and control subassembly, use clamping assembly to press from both sides tightly the dog, the dog is pressed from both sides tight back and is acted on the spiral leaf through the pivot for the rotation speed of spiral leaf slows down, and then can reduce the velocity of flow of gas, and through the regulation to the tight degree of dog clamp, can adjust the rotation speed of spiral leaf, makes the velocity of flow of gas in preheating zone and the cooling zone freely adjustable.
Drawings
FIG. 1 is a schematic view showing the overall structure of a PVC-PVDC composite film production apparatus in example 1 of the present application;
FIG. 2 is a schematic view showing a part of the construction of a PVC-PVDC composite film production apparatus in example 1 of the present application;
FIG. 3 is a schematic view showing a part of the structure of a gas diversion mechanism for protruding display of a PVC-PVDC composite film production device in embodiment 1 of the present application;
FIG. 4 is an enlarged schematic view of FIG. 3A of the present application;
FIG. 5 is a flow chart of a process for producing a PVC-PVDC composite film in example 2 of the present application.
Reference numerals: 1. a first unreeling mechanism; 2. a gluing mechanism; 3. a drying tunnel; 31. a preheating zone; 32. a heating zone; 33. a cooling zone; 4. a second unreeling mechanism; 5. a compound mechanism; 6. a winding mechanism; 7. a partition plate; 8. a conveying roller; 9. a gas diversion mechanism; 91. a shunt; 92. a temperature regulation assembly; 921. a first fan blade; 922. an air inlet pipe; 923. a second fan blade; 924. a transmission belt; 925. a stop valve; 93. a wind speed regulation assembly; 931. spiral leaves; 932. a stop block; 933. a clamping assembly; 9331. rotating the grip; 9332. a threaded rod; 9333. a slide bar; 9334. clamping blocks; 10. a hot air conveying member; 11. an air supply pipe; 12. a first air outlet nozzle; 13. a second air outlet nozzle; 14. a first chute; 15. a sliding seat; 16. a second chute; 17. sealing and limiting perforation; 18. sealing and limiting the penetrating rod; 19. an elastic member; 20. a limit rod; 21. an exhaust valve; 22. a frame; 23. a first mounting frame; 24. a second mounting frame; 25. a third mounting frame; 26. a temperature sensor; 27. wind speed measuring instrument; 29. a guide roller; 30. and an exhaust pipe.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
Example 1:
the embodiment of the application discloses PVC-PVDC composite film production equipment.
Referring to fig. 1, a PVC-PVDC composite film production apparatus includes a frame 22, on which a first unreeling mechanism 1, a glue spreading mechanism 2, a drying tunnel 3, a second unreeling mechanism 4, a composite mechanism 5, and a reeling mechanism 6 are mounted on the frame 22. The first unreeling mechanism 1 conveys out a PVC substrate, the PVC substrate passes through the gluing mechanism 2, the gluing mechanism 2 coats solvent type adhesive on the PVC substrate, the PVC substrate coated with the adhesive enters the drying tunnel 3 through the guide roller 29, hot air in the drying tunnel 3 dries the adhesive, the second unreeling mechanism 4 conveys out a PVDC substrate, the compounding mechanism 5 presses the PVDC substrate and the dried PVC substrate in the drying tunnel 3 into a PVC-PVDC composite film, and the reeling mechanism 6 reels up the PVC-PVDC composite film, so that the production of the PVC-PVDC composite film can be completed.
A plurality of conveying rollers 8 are rotatably arranged in the drying tunnel 3, the conveying rollers 8 are arranged at equal intervals along the length direction of the drying tunnel 3, and after the PVC base material enters the drying tunnel 3, the conveying rollers 8 convey and move the PVC base material. Two partition plates 7 are fixedly arranged in the drying tunnel 3 at intervals along the length direction of the drying tunnel, the two partition plates 7 divide the interior of the drying tunnel 3 into three areas, namely a preheating area 31, a heating area 32 and a cooling area 33 in sequence along the conveying direction of PVC base materials, the high-grade wind speed and the high-grade temperature are arranged in the heating area 32 of the drying tunnel 3, the medium-grade wind speed and the medium-grade temperature are arranged in the preheating area 31, and the low-grade wind speed and the low-grade temperature are arranged in the cooling area 33.
The preheating zone 31 is capable of gradually heating the adhesive and PVC substrate to an appropriate temperature in preparation for the subsequent drying stage, the heating zone 32 is capable of rapidly evaporating the moisture and solvent in the adhesive and drying the adhesive, and the cooling zone 33 is used for gradually reducing the temperature of the adhesive and PVC substrate to reduce problems with the adhesive and PVC substrate due to excessive rapid cooling.
The hot air conveying member 10 is arranged right above the heating area 32 in the drying tunnel 3, the output end of the hot air conveying member 10 is connected with the air supply pipe 11, the end part, far away from the hot air conveying member 10, of the air supply pipe 11 stretches into the heating area 32 of the drying tunnel 3, a plurality of first air outlets 12 communicated with the air supply pipe 11 are arranged in the heating area 32 in the drying tunnel 3, and the first air outlets 12 are arranged right above the PVC base material. In this application, hot air transport spare 10 optional is the air heater, and hot air transport spare 10 can be through blast pipe 11 and first air outlet 12 with hot-blast transport to the heating zone 32 of drying tunnel 3 in for heating zone 32 can keep the state of high wind speed and high temperature, thereby dry the binder on the PVC substrate.
Two gas diversion mechanisms 9 are arranged on the drying tunnel 3, one ends of the two gas diversion mechanisms 9 are communicated with the heating area 32, the other ends of the two gas diversion mechanisms 9 extend into the drying tunnel 3 and are respectively communicated with the preheating area 31 and the cooling area 33, a plurality of second air outlets 13 communicated with the gas diversion mechanisms 9 are arranged in the preheating area 31 and the cooling area 33 of the drying tunnel 3, and the second air outlets 13 are arranged right above the PVC base material. The gas diversion mechanism 9 can regulate the temperature and the flow rate of the gas, so that the preheating zone 31 of the drying tunnel 3 can maintain the medium wind speed and the medium temperature, and the cooling zone 33 can maintain the low wind speed and the low temperature. Two exhaust pipes 30 are arranged at the top of the oven, the two exhaust pipes 30 are respectively communicated with a preheating zone 31 and a cooling zone 33, and hot air in the preheating zone 31 and hot air in the cooling zone 33 are discharged out of the drying tunnel 3 through the exhaust pipes 30.
Referring to fig. 1 and 2, specifically, the gas splitting mechanism 9 includes a splitting pipe 91, a temperature regulating and controlling assembly 92 and an air speed regulating and controlling assembly 93, the splitting pipe 91 is C-shaped, one ends of the splitting pipes 91 in the two gas splitting mechanisms 9 are fixedly connected with the top wall of the drying tunnel 3 and are communicated with the heating area 32, the other ends respectively pass through the drying tunnel 3 and extend into the preheating area 31 and the cooling area 33, and the second air outlet nozzle 13 is communicated with the splitting pipe 91. A temperature regulating assembly 92 is installed on the shunt tube 91 and regulates the temperature of the gas flowing through the shunt tube 91, and a wind speed regulating assembly 93 is installed in the shunt tube 91 and regulates the flow rate of the gas flowing through the shunt tube 91. The hot gas in the heating zone 32 enters the preheating zone 31 and the cooling zone 33 through the shunt tubes 91 and the second air outlet nozzles, and the temperature regulating and controlling assembly 92 and the air speed regulating and controlling assembly 93 regulate the temperature and the flow rate of the hot gas in the process of flowing through the shunt tubes 91, so that the temperature and the flow rate of the hot gas in the preheating zone 31 and the cooling zone 33 can meet the requirements.
Referring to fig. 1 and 3, a temperature sensor 26 and an air velocity measuring instrument 27 are fixedly installed at one end of the shunt tube 91 far away from the heating area 32, a display screen is installed on the side wall of the drying tunnel 3, the temperature sensor 26 and the air velocity measuring instrument 27 are electrically connected with the display screen, and temperature and air velocity information is displayed on the display screen. This facilitates the operator to see the temperature and flow rate of the hot gas in the shunt tube 91 so that the temperature and flow rate of the hot gas in the preheating zone 31 and the cooling zone 33 are adjusted more accurately.
Referring to fig. 2 and 3, further, the temperature control assembly 92 includes a first fan blade 921, an air inlet pipe 922, a second fan blade 923, a driving belt 924 and a stop valve 925, the first fan blade 921 is rotatably installed in the air inlet pipe 11 by taking the axis of the air inlet pipe 11 as a shaft, a first installation frame 23 is fixedly installed on the upper side and the lower side of the first fan blade 921 in the air inlet pipe 11, the first installation frame 23 is in a cross shape, and two ends of a rotating shaft of the first fan blade 921 are rotatably installed at the cross centers of the two first installation frames 23 respectively. The first mounting frame 23 supports the first fan blade 921, and when the hot air is supplied into the air supply duct 11 by the hot air supplying member 10, the hot air blows the first fan blade 921 to rotate.
The air-supply line 922 fixed mounting is at the lateral wall top of shunt tubes 91, and the bottom and the shunt tubes 91 intercommunication of air-supply line 922, top and external intercommunication, second flabellum 923 are installed in air-supply line 922 as the axis rotation of air-supply line 922, and the equal fixed mounting in upper and lower both sides that lie in second flabellum 923 in the air-supply line 922 has second mounting bracket 24, and second mounting bracket 24 is the cross, and the both ends of second flabellum 923 pivot rotate respectively and install in the cross center department of two second mounting brackets 24. The second mounting bracket 24 supports the second fan blade 923 such that the second fan blade 923 can rotate in the air inlet duct 922.
The driving belt 924 is annular, and the driving belt 924 passes through the air supply pipe 11 and the air supply pipe 922 and is sleeved on the rotating shafts of the first fan blade 921 and the second fan blade 923. When first flabellum 921 rotates, first flabellum 921 can drive second flabellum 923 through the drive belt 924 and rotate, and second flabellum 923 carries external cold air to shunt tubes 91 in from air-supply line 922 again, and external cold air mixes with the steam in the shunt tubes 91 to can cool down the gas in the shunt tubes 91.
A shut-off valve 925 is installed in the shunt tube 91 upstream of the air inlet pipe 922, and the shut-off valve 925 can regulate the flow of hot air through the shunt tube 91. Since the flow rate of the air supplied from the hot air supplying member 10 is always constant, the rotational speeds of the first fan blade 921 and the second fan blade 923 are constant, and the flow rate of the air supplied from the air inlet pipe 922 is always constant. The flow rate of the hot gas passing through the split pipe 91 is regulated, so that the temperature of the mixed gas can be regulated, and the temperatures of the gas in the preheating zone 31 and the cooling zone 33 can be freely regulated.
Referring to fig. 3 and 4, further, the wind speed regulating assembly 93 includes a spiral blade 931, a clamping assembly 933, and two stoppers 932, the spiral blade 931 is rotatably installed in the shunt tube 91 with the axis of the shunt tube 91 as a shaft, the rotation shaft of the spiral blade 931 is parallel to the horizontal direction, and the spiral blade 931 is located downstream of the wind inlet pipe 922. The third mounting frames 25 are fixedly mounted on two sides, located in the axial direction of the spiral blades 931, of the shunt tubes 91, the third mounting frames 25 are in a cross shape, and two ends of the rotating shaft of the spiral blades 931 are respectively and rotatably mounted at the cross centers of the two third mounting frames 25. The external cold air and the hot air in the shunt tube 91 are mixed and impacted on the spiral blades 931, and the spiral blades 931 rotate and drive the mixed air to flow spirally after being impacted, so that the cold air and the hot air are mixed more uniformly.
The stoppers 932 are circular, and the two stoppers 932 are coaxially and fixedly mounted on the rotation shaft of the spiral blade 931 and are respectively located at two sides of the axial direction of the spiral blade 931. The clamping assembly 933 comprises a rotary handle 9331, two threaded rods 9332, a slide bar 9333 and a clamping block 9334, wherein two first slide grooves 14 are arranged at the top of the side wall of the shunt tube 91 at intervals along the length direction of the side wall, the two slide bars 9333 are respectively arranged in the two first slide grooves 14 in a sliding manner along the horizontal direction, the slide bars 9333 are arranged along the vertical direction, one end of each slide bar 9333 is positioned outside the shunt tube 91, the other end of each slide bar 9333 extends into the shunt tube 91, and the two slide bars 9333 are respectively positioned at one sides of the two stop blocks 932 far away from each other.
Two clamp blocks 9334 are mounted on the ends of the two slide bars 9333 within the shunt 91, respectively, the clamp blocks 9334 are located on the side walls of the slide bars 9333 that are adjacent to the stops 932, and the clamp blocks 9334 move against the side walls of the stops 932. Two threaded rods 9332 are mounted on the ends of the two slide bars 9333 that are outside the shunt 91, respectively, the threaded rods 9332 are perpendicular to the slide bars 9333, and the two threaded rods 9332 are located on the side walls of the two slide bars 9333 that are adjacent to each other. The spiral directions of the two threaded rods 9332 are opposite, and the two ends of the rotary handle 9331 are rotatably sleeved at the end parts of the two threaded rods 9332, which are close to each other.
Rotating the rotating handle 9331, the rotating handle 9331 drives the two slide bars 9333 to synchronously move along the approaching or separating direction through the two threaded rods 9332, the two slide bars 9333 drive the two clamping blocks 9334 to synchronously move along the approaching or separating direction of the baffle 932, when the two clamping blocks 9334 move towards the approaching direction of the two baffle 932, the friction force between the clamping blocks 9334 and the baffle 932 is increased, the rotating speed of the spiral blade 931 is reduced, and the flow rate of the gas in the shunt tube 91 is reduced; as the clamp block 9334 moves away from the stop 932, the friction between the clamp block 9334 and the stop 932 decreases, the rotational speed of the spiral 931 increases, and the flow rate of the gas within the shunt 91 increases. By adjusting the degree of clamping of the stopper 932, the rotational speed of the spiral blade 931 can be adjusted so that the flow rates of the gases in the preheating zone 31 and the cooling zone 33 can be freely adjusted.
The exhaust valve 21 is installed on the shunt tube 91 downstream of the spiral blade 931 and upstream of the anemometer 27, and the exhaust valve 21 can exhaust part of the gas in the shunt tube 91, so as to facilitate meeting the low wind speed required in the cooling zone 33 and the medium wind speed required in the preheating zone 31.
The end of the slide bar 9333 in the shunt 91 and the side wall near the stop 932 are fixedly provided with an elastic member 19. In this application, the elastic member 19 may be a spring, and the clamp block 9334 is fixedly provided at the end of the elastic member 19 far from the slide bar 9333 and abuts against the stop 932. The slide bar 9333 acts on the clamp block 9334 through the elastic member 19, so that the clamp block 9334 abuts against the stop block 932, when the elastic member 19 is continuously pressed, the elastic potential energy of the elastic member 19 is gradually increased, and the friction force between the clamp block 9334 and the stop block 932 is also gradually increased. In this way, the adjustable travel of the slide bar 9333 is increased, so that the regulation of the wind speed regulation component 93 is more accurate.
The middle part of the side wall of the clamp block 9334 far away from the stop 932 is fixedly provided with a limiting rod 20, the limiting rod 20 is arranged along the moving direction of the slide rod 9333 and is positioned in the elastic piece 19, and the limiting rod 20 slides through the slide rod 9333. When the elastic piece 19 is extruded by the slide rod 9333, the limiting rod 20 slides in the slide rod 9333, so that the clamping block 9334 is limited, and when the clamping block 9334 abuts against the stop 932, the clamping block 9334 is not easy to deflect, and the stability of the clamping assembly 933 is improved.
The top of the side wall of the shunt tube 91 is fixedly provided with two sliding seats 15 along the length direction of the side wall at intervals, the two sliding seats 15 cover two first sliding grooves 14, a second sliding groove 16 is formed in the sliding seat 15, the section of the second sliding groove 16 is identical to that of the first sliding groove 14, and the second sliding groove 16 is communicated with the first sliding groove 14. The slide bar 9333 slides in the first slide groove 14 and also slides in the second slide groove 16 of the slide base 15.
Sealing limiting penetrating holes 17 are formed in the sliding seat 15 at two opposite sides of the second sliding groove 16 along the moving direction of the sliding rod 9333, sealing limiting penetrating rods 18 are fixedly mounted on two opposite side walls of the sliding rod 9333 along the moving direction of the sliding rod 9333, the two sealing limiting penetrating rods 18 respectively slide through the two sealing limiting penetrating holes 17, and the two sealing limiting penetrating rods 18 plug the second sliding groove 16.
When the slide bar 9333 moves, the seal limit penetrating rod 18 is driven to slide in the seal limit perforation 17, and the seal limit penetrating rod 18 is matched with the seal limit perforation 17 to limit the slide bar 9333, so that the slide bar 9333 is not easy to incline. Simultaneously, the two sealing limiting penetrating rods 18 always block the second sliding groove 16 in the sliding process, so that hot air in the flow dividing pipe 91 cannot be sprayed out of the first sliding groove 14, and a worker cannot be scalded by the hot air when rotating the rotary handle 9331.
The implementation principle of embodiment 1 of the present application is: the PVC substrate passes through the preheating zone 31, the heating zone 32 and the cooling zone 33 in the drying tunnel 3 in sequence, the preheating zone 31 can gradually heat the adhesive and the PVC substrate to reach proper temperature for preparing for the subsequent drying stage, the heating zone 32 can quickly evaporate moisture and solvent in the adhesive and dry the adhesive, and the cooling zone 33 is used for gradually reducing the temperature of the adhesive and the PVC substrate so as to reduce the problem of the adhesive and the PVC substrate caused by too quick cooling. The hot air is firstly conveyed into the heating area 32, and then is conveyed into the preheating area 31 and the cooling area 33 through the two gas diversion mechanisms 9, and the gas diversion mechanisms 9 can regulate and control the temperature and the flow speed of the hot air, so that the temperature and the air speed of the hot air in different sections of the drying tunnel 3 can be independently regulated, the drying effect of the adhesive cannot be affected, and the bonding effect between PVC-PVDC composite film base materials is better.
Example 2
Referring to fig. 5, an embodiment of the present application discloses a PVC-PVDC composite film production process, using the above-mentioned apparatus for producing a PVC-PVDC composite film, comprising the following steps:
s1: the first unreeling mechanism 1 conveys out PVC base materials, and the PVC base materials move into the gluing mechanism 2;
s2: the gluing mechanism 2 coats an adhesive on the PVC base material, and the PVC base material enters the drying tunnel 3 through the guide roller 29;
s3, the PVC base material firstly enters a preheating zone 31 for preheating, then enters a heating zone 32 for drying, finally enters a cooling zone 33 for gradually cooling, and the cooled PVC base material is moved out of a drying tunnel 3;
s4: the second unreeling mechanism 4 conveys PVDC base materials, and the PVDC base materials and the PVC base materials enter the compounding mechanism 5 together;
s5: the compounding mechanism 5 presses the PVC base material and the PVDC base material into a PVC-PVDC composite film;
s6: and the winding mechanism 6 winds the PVC-PVDC composite film.
Before step S1, the temperature and flow rate of the gas in the preheating zone 31, the heating zone 32 and the cooling zone 33 of the drying tunnel 3 need to be adjusted.
First, the hot air delivery member 10 is adjusted so that the temperature and wind speed within the heating zone 32 meet the criteria.
Next, the stop valve 925 on the shunt tube 91 of the preheating zone 31 is adjusted to adjust the temperature of the gas in the preheating zone 31 to meet the standard, and the rotary handle 9331 on the shunt tube 91 of the preheating zone 31 is adjusted to adjust the flow rate of the gas in the preheating zone 31 to meet the standard. If the spiral blades 931 stop rotating and the wind speed in the preheating zone 31 does not meet the standard, the exhaust valve 21 is adjusted to reduce the wind speed in the preheating zone 31 again until the wind speed in the preheating zone 31 meets the standard.
Finally, the shut-off valve 925 on the shunt 91 of the cooling zone 33 is adjusted to regulate the temperature of the gas in the cooling zone 33 to meet the standard, and the rotary handle 9331 on the shunt 91 of the cooling zone 33 is adjusted to regulate the flow rate of the gas in the cooling zone 33 to meet the standard. If the rotation of the spiral blades 931 is stopped and the wind speed in the cooling zone 33 does not meet the standard, the exhaust valve 21 is adjusted to again lower the wind speed in the cooling zone 33 until the wind speed in the cooling zone 33 meets the standard.
The implementation principle of the embodiment 2 is as follows: the temperature and wind speed in the heating zone 32 are first adjusted; the temperature and the wind speed in the preheating zone 31 are adjusted, and when the wind speed in the preheating zone 31 does not meet the standard, the exhaust valve 21 is used for continuously adjusting the wind speed in the preheating zone 31; finally, the temperature and the wind speed in the cooling zone 33 are regulated, and when the wind speed in the cooling zone 33 does not meet the standard, the exhaust valve 21 is used for continuously regulating the wind speed of the cooling zone 33, so that the regulation of the wind speeds of the cooling zone 33 and the preheating zone 31 is more accurate.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (6)
1. The utility model provides a PVC-PVDC complex film production facility, includes frame (22), be provided with first unreeling mechanism (1), rubber coating mechanism (2), drying tunnel (3), second unreel mechanism (4), compound mechanism (5) and winding mechanism (6) on frame (22), its characterized in that: two partition plates (7) are arranged in the drying tunnel (3), the two partition plates (7) divide the front section of the drying tunnel (3) into a preheating zone (31), the middle section of the drying tunnel into a heating zone (32) and the rear section of the drying tunnel into a cooling zone (33), and a plurality of conveying rollers (8) for conveying base materials are arranged in the drying tunnel (3); the drying tunnel (3) is positioned above the heating area (32) and is provided with a hot air conveying part (10), the output end of the hot air conveying part (10) is provided with an air supply pipe (11) connected with the heating area (32) of the drying tunnel (3), and the drying tunnel (3) is positioned in the heating area (32) and is provided with a plurality of first air outlets (12) connected with the air supply pipe (11); the drying tunnel (3) is arranged on the heating area (32) and is provided with two gas diversion mechanisms (9), the two gas diversion mechanisms (9) are respectively connected with a preheating area (31) and a cooling area (33) of the drying tunnel (3), gas in the heating area (32) respectively enters the preheating area (31) and the cooling area (33) through the two gas diversion mechanisms (9), the drying tunnel (3) is arranged in the preheating area (31) and the cooling area (33) and is provided with a plurality of second air outlets (13) connected with the gas diversion mechanisms (9), the gas diversion mechanisms (9) are used for regulating and controlling the temperature and the flow rate of the gas, and the heating area (32) of the drying tunnel (3) is provided with high-grade wind speed and high-grade temperature, the preheating area (31) is provided with medium wind speed and medium temperature, and the cooling area (33) is provided with low-grade wind speed and low-grade temperature;
the gas flow dividing mechanism (9) comprises a flow dividing pipe (91), a temperature regulating and controlling assembly (92) and a wind speed regulating and controlling assembly (93), one ends of the two flow dividing pipes (91) are connected with a heating area (32) of the drying tunnel (3), the other ends of the two flow dividing pipes (91) are respectively connected with a preheating area (31) and a cooling area (33) of the drying tunnel (3), the temperature regulating and controlling assembly (92) is arranged on the flow dividing pipe (91) and used for regulating the temperature of gas in the flow dividing pipe (91), and the wind speed regulating and controlling assembly is arranged in the flow dividing pipe (91) and used for regulating the flow speed of the gas in the flow dividing pipe (91);
the temperature regulation and control assembly (92) comprises a first fan blade (921), an air inlet pipe (922), a second fan blade (923), a transmission belt (924) and a stop valve (925), wherein the first fan blade (921) is coaxially arranged in the air inlet pipe (11) in a rotating mode, one end of the air inlet pipe (922) is communicated with a shunt pipe (91), the other end of the air inlet pipe is communicated with the outside, the second fan blade (923) is coaxially arranged in the air inlet pipe (922) in a rotating mode, the transmission belt (924) is sleeved on rotating shafts of the first fan blade (921) and the second fan blade (923) and penetrates through the air inlet pipe (11) and the air inlet pipe (922), the stop valve (925) is arranged in the shunt pipe (91), and the stop valve (925) is located at the upstream of the air inlet pipe (922);
the wind speed regulating and controlling assembly (93) comprises a spiral blade (931), a baffle block (932) and a clamping assembly (933), wherein the spiral blade (931) is coaxially arranged in the shunt tube (91) in a rotating mode and is positioned at the downstream of the air inlet tube (922), the two baffle blocks (932) are respectively arranged at two ends of a rotating shaft of the spiral blade (931), the clamping assembly (933) is arranged on the shunt tube (91), and the clamping assembly (933) is used for clamping the baffle blocks (932);
the clamping assembly (933) comprises a rotary handle (9331), two threaded rods (9332), a sliding rod (9333) and a clamping block (9334), wherein two first sliding grooves (14) are formed in the shunt tube (91) along the axial direction of the shunt tube in a spaced mode, the two sliding rods (9333) are respectively arranged in the two first sliding grooves (14) in a sliding mode and located on one sides, away from each other, of the two stop blocks (932), the clamping block (9334) is arranged at the end portion, located in the shunt tube (91), of the sliding rod (9333) and abuts against the stop blocks (932), the threaded rod (9332) is arranged at the end portion, located outside the shunt tube (91), of the sliding rod (9333), the spiral directions of the two threaded rods (9332) are opposite, and two ends of the rotary handle (9331) are respectively sleeved at the end portions of the two threaded rods (9332) in a threaded mode.
2. The PVC-PVDC composite film production apparatus according to claim 1, wherein: the utility model discloses a shunt tubes (91) are provided with sliding seat (15) on being located first spout (14), second spout (16) with first spout (14) intercommunication have been seted up in sliding seat (15), follow in sliding seat (15) slide bar (9333) direction of movement and run through set up with sealed spacing perforation (17) of second spout (16) intercommunication, all fixed be provided with on slide bar (9333) the relative both sides wall sealed spacing perforating rod (18), two sealed spacing perforating rod (18) all slide along slide bar (9333) direction of movement and set up in sealed spacing perforation (17), and two sealed spacing perforating rod (18) carry out the shutoff to second spout (16).
3. The PVC-PVDC composite film production apparatus according to claim 1, wherein: the end of slide bar (9333) in shunt tubes (91) and be located and be provided with elastic component (19) on being close to the lateral wall of dog (932), clamp splice (9334) set up on elastic component (19), be provided with gag lever post (20) on the lateral wall that clamp splice (9334) are close to slide bar (9333), gag lever post (20) are along clamp splice (9334) direction of movement looks adaptation slip setting in slide bar (9333).
4. The PVC-PVDC composite film production apparatus according to claim 1, wherein: an exhaust valve (21) is arranged on the shunt pipe (91), and the exhaust valve (21) is positioned at the downstream of the spiral blade (931).
5. A PVC-PVDC composite film production process is characterized in that: a PVC-PVDC composite film production apparatus according to any one of claims 1 to 4, comprising the following production steps:
s1: the first unreeling mechanism (1) is used for conveying out the PVC base material;
s2: the gluing mechanism (2) coats an adhesive on the PVC base material;
s3: the PVC base material is conveyed into a drying tunnel (3), and the drying tunnel (3) dries the adhesive;
s4: the second unreeling mechanism (4) conveys the PVDC substrate;
s5: the compound mechanism (5) presses the PVC base material and the PVDC base material into a PVC-PVDC compound film;
s6: and the winding mechanism (6) winds the PVC-PVDC composite film.
6. The process for producing the PVC-PVDC composite film according to claim 5, wherein the process comprises the following steps: before step S1, adjusting the temperature and the flow rate of gas in a preheating zone (31), a heating zone (32) and a cooling zone (33) of the drying tunnel (3), and adjusting a hot air conveying piece (10) to enable the temperature and the air speed in the heating zone (32) to meet the standard; the stop valve (925) and the rotary handle (9331) on the preheating zone (31) are regulated so that the temperature and the wind speed in the preheating zone (31) meet the standards; firstly, a stop valve (925) on a cooling zone (33) is adjusted to enable the temperature in the cooling zone (33) to meet the standard, then, a rotary handle (9331) is adjusted to enable the wind speed in the cooling zone (33) to meet the standard, when the spiral blade (931) stops rotating and the wind speed in the cooling zone (33) does not meet the standard due to the fact that the wind speed required by the cooling zone (33) is low, an exhaust valve (21) is adjusted, and the wind speed in the cooling zone (33) is reduced again until the wind speed in the cooling zone (33) meets the standard.
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| CN202410012945.9A CN117507386B (en) | 2024-01-04 | 2024-01-04 | PVC-PVDC composite film production equipment and production process |
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| CN202410012945.9A CN117507386B (en) | 2024-01-04 | 2024-01-04 | PVC-PVDC composite film production equipment and production process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1067984A (en) * | 1992-05-16 | 1993-01-13 | 青岛塑料八厂 | The flat cable compound membrane making technology |
| JP2009131982A (en) * | 2007-11-29 | 2009-06-18 | Toyobo Co Ltd | Polyethylene terephthalate resin film and manufacturing method therefor |
| CN103481626A (en) * | 2013-08-16 | 2014-01-01 | 杭州塑料工业有限公司 | Production technology of polyvinyl chloride (PVC)/polyethylene (PE)/polyvinyl dichloride (PVDC) composite piece |
| JP2014226800A (en) * | 2013-05-20 | 2014-12-08 | コニカミノルタ株式会社 | Production method of optical film |
| CN208390371U (en) * | 2018-05-15 | 2019-01-18 | 江西中汽瑞华新能源科技有限公司 | A kind of coating fast-drying device |
-
2024
- 2024-01-04 CN CN202410012945.9A patent/CN117507386B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067984A (en) * | 1992-05-16 | 1993-01-13 | 青岛塑料八厂 | The flat cable compound membrane making technology |
| JP2009131982A (en) * | 2007-11-29 | 2009-06-18 | Toyobo Co Ltd | Polyethylene terephthalate resin film and manufacturing method therefor |
| JP2014226800A (en) * | 2013-05-20 | 2014-12-08 | コニカミノルタ株式会社 | Production method of optical film |
| CN103481626A (en) * | 2013-08-16 | 2014-01-01 | 杭州塑料工业有限公司 | Production technology of polyvinyl chloride (PVC)/polyethylene (PE)/polyvinyl dichloride (PVDC) composite piece |
| CN208390371U (en) * | 2018-05-15 | 2019-01-18 | 江西中汽瑞华新能源科技有限公司 | A kind of coating fast-drying device |
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| CN117507386A (en) | 2024-02-06 |
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