A composite film coating apparatus

Abstract

The application relates to the field of composite film production, in particular to a composite film coating equipment which comprises a coating main body for compounding a plurality of film layers, a glue tank communicated with the coating main body and used for supplying adhesive, the coating main body is provided with a sealing plate which encloses a part of the coating main body for compounding the film layers, the sealing plate is provided with a plurality of film penetrating openings for the composite film or the film layers to pass through, the sealing plate is communicated with a gas conveying pipe for conveying dry air into the space enclosed by the sealing plate, and the position of the gas conveying pipe communicated with the sealing plate is close to the position of the sealing plate provided with the film penetrating openings, so that the air in the space enclosed by the sealing plate is relatively dry, the air in the operation room where the whole coating main body is located does not need to be controlled in humidity, and the practicability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of composite film production, in particular to a composite film coating device. BACKGROUND

[0002] Composite film is a kind of film that multiple film layers are compounded to make the single film have the advantages of multiple film layers, such as heat insulation and wear resistance. There are many methods for manufacturing composite film, and the solvent-free compounding method has a great development prospect due to environmental protection. The solvent-free compounding method generally uses a two-component adhesive to be heated and mixed, and then the adhesive is tightly pressed between the two film layers by a coating roller and a compression roller.

[0003] In order to improve the adhesion effect of the two-component adhesive and reduce the reaction of the adhesive and moisture in the air, the entire coating device is generally placed in a separate and relatively dry operation room to adapt to the high humidity climate conditions.

[0004] According to the related technology described above, the more the number of coating devices, the larger the space of the operation room, and it is difficult to control the humidity inside the large space of the operation room, and it requires more resources and has a large investment cost, which is not practical. SUMMARY

[0005] In order to more practically control the humidity during the production of composite film, the present application provides a composite film coating device.

[0006] The composite film coating device provided by the present application adopts the following technical solution.

[0007] A composite film coating device includes a coating body for compounding multiple film layers, a glue tank connected to the coating body and supplying adhesive, and a sealing plate surrounding the part of the coating body that compounds the film layers. The sealing plate has a plurality of film passing openings for passing the composite film or film layers, and a gas supply pipe connected to the sealing plate and supplying dry air into the space surrounded by the sealing plate.

[0008] By using the above technical solution, the sealing plate surrounds the position of the coating body where the film layers are compounded, and continuously supplies dry air into the space surrounded by the sealing plate, so that the composite process is not easily affected by the external air with high humidity. At the same time, it is not necessary to control the humidity of the entire operation room with high cost and difficulty. The position of the gas supply pipe makes the air supplied into the space surrounded by the sealing plate not easily discharged from the film passing openings, so that the air in the sealing plate can be effectively discharged.

[0009] Optionally, the sealing plate comprises a bottom plate slidably connected to the coating main body and provided with the film passing holes, two side plates slidably connected to the coating main body and abutting against the bottom plate, and a top plate slidably connected to the coating main body and abutting against the side plates.

[0010] By adopting the above technical scheme, the sealing plate can be removed as a whole, and the coating roller, the pressure roller and the metering roller in the coating main body can be regularly maintained.

[0011] Optionally, a film guide cylinder is rotatably connected to the outer surface of the bottom plate near the film passing holes, and each group of film passing holes is provided with two film guide cylinders.

[0012] By adopting the above technical scheme, the film layer and the composite film are not easy to rub against the edges of the film passing holes during the continuous unwinding of the film layer roll and the continuous winding of the composite film.

[0013] Optionally, the air supply pipe is communicated with a filter pipe for air entering, the filter pipe is provided with calcium oxide blocks, the filter pipe is provided with a water absorption sponge portion at the end away from the air supply pipe, and the filter pipe and the air supply pipe are communicated with a blower for making the gas flow into the air supply pipe.

[0014] By adopting the above technical scheme, the air outside can first remove some large impurities and some water vapor through the water absorption sponge portion, and then remove most of the water vapor in the air through the calcium oxide blocks, and then be sent into the air supply pipe by the blower, and the air is heated to a certain extent during the water absorption of the calcium oxide blocks, so that the air sent into the sealing plate is heated to a certain extent, which is helpful for the coating of the adhesive on the film layer and the subsequent curing of the composite film.

[0015] Optionally, the calcium oxide blocks are provided in two groups, each group comprises a plurality of calcium oxide blocks, the two groups of calcium oxide blocks are arranged in a staggered manner, and the projections of the two groups of calcium oxide blocks on the end face of the filter pipe overlap.

[0016] By adopting the above technical scheme, the air in the filter pipe can be in contact with the calcium oxide blocks as much as possible, so that the water vapor in the air can be better removed.

[0017] Optionally, the outer wall of the filter pipe is provided with a heating pipe for heating the filter pipe.

[0018] By adopting the above technical scheme, the filter pipe can be heated to a certain extent to accelerate the reaction between the calcium oxide blocks and the water vapor, so that the calcium oxide blocks can react with the water vapor in the air more fully even when the air flow rate in the filter pipe is high, and the air sent into the space surrounded by the sealing plate can have a certain temperature.

[0019] Optionally, the glue barrel is detachably connected with a sealing cover, the sealing cover is communicated with a glue pouring bucket, the glue pouring bucket is fixedly connected with a bucket support, the glue pouring bucket is communicated with a barrel pipe for connecting the adhesive barrel, the barrel pipe is slidably connected with an inner partition plate for partitioning the barrel pipe, and the barrel pipe is communicated with an air exhaust pipe for exhausting air away from the side of the inner partition plate away from the glue pouring bucket.

[0020] By adopting the above technical scheme, when the two-component adhesive in the glue barrel is close to exhaustion, the inner partition plate is opened, so that the adhesive barrel at the end of the barrel pipe can send the main agent or the curing agent into the glue pouring bucket to supplement the glue in the glue barrel, and when the adhesive in the adhesive barrel at the end of the barrel pipe is exhausted and needs to be replaced, the inner partition plate can close the barrel pipe, so that air from outside is not easy to enter the glue pouring bucket.

[0021] Optionally, the bucket support is slidably connected with a slide rod along the radial direction of the glue pouring bucket, and the outer wall of the barrel pipe is rotatably connected to the slide rod, and the slide rod is provided with a barrel pipe motor for driving the barrel pipe to rotate by 180 degrees.

[0022] By adopting the above technical scheme, when the adhesive barrel at the end of the barrel pipe needs to be replaced, the slide rod is first moved to move the barrel pipe away from directly above the glue pouring bucket, and then the barrel pipe is rotated by 180 degrees, so that the end of the barrel pipe provided with the adhesive barrel faces downward to connect the adhesive barrel to the barrel pipe, and also to prevent the main agent or the curing agent in the adhesive barrel from leaking out during the connection process.

[0023] Optionally, the bucket support is provided with a lifting platform capable of lifting the adhesive barrel, the inner end of the barrel pipe away from the glue pouring bucket is fixedly connected with an inner abutting ring capable of abutting against the edge of the adhesive barrel, and the end face of the barrel pipe away from the glue pouring bucket is slidably connected with two barrel half rings capable of tightly abutting against the outer wall of one end of the edge of the adhesive barrel and abutting against the side of the edge of the adhesive barrel away from the inner abutting ring.

[0024] By adopting the above technical scheme, the adhesive barrel is placed on the lifting platform, so that the adhesive barrel is lifted and the edge of the adhesive barrel can tightly abut against the inner abutting ring, and then the barrel half rings are moved to abut against the outer wall of the adhesive barrel, so that the edge of the adhesive barrel is limited between the inner abutting ring and the barrel half rings, so that the adhesive barrel can be smoothly rotated with the barrel pipe.

[0025] Optionally, the inner wall of the end of the barrel pipe away from the glue pouring bucket is fixedly connected with an inner bucket, the opening area of the end of the inner bucket close to the inner partition plate is the smallest, the inner partition plate can tightly abut against the opening end face of the inner bucket, and the barrel pipe is slidably connected with two partition plates capable of partitioning the barrel pipe.

[0026] By adopting the above technical scheme, the curing agent or the main agent in the adhesive barrel is not easy to be directly poured out completely, but flows out to the glue injection bucket at a certain rate through the inner bucket, and the setting of the double sealing plate makes the inner tube sealing plate not need to close the inner bucket during the air extraction process, so that the air in the inner bucket can be smoothly extracted.

[0027] In summary, the present application includes at least one of the following beneficial effects:

[0028] 1. The composite process is not easy to be affected by the air with high humidity outside, and the entire operation room does not need to be controlled in humidity with high cost and difficulty, and the position of the air supply pipe makes the air supplied into the space surrounded by the sealing plate not easy to be directly supplied out from the membrane port, so that the air in the sealing plate can be effectively discharged;

[0029] 2. The heat released during the water absorption process of the calcium oxide block makes the air heated to a certain extent, so that the air supplied into the sealing plate is heated to a certain extent, which helps the coating of the adhesive on the membrane layer and the subsequent curing of the composite film. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the main structure of the present application;

[0031] Figure 2 is a structure schematic diagram of the bottom of the coating main body, and the filter pipe is cut in half;

[0032] Figure 3 is a structure schematic diagram of the side of the coating main body where the glue barrel is arranged, one sliding rod is removed, and the corresponding barrel pipe is partially cut away;

[0033] Figure 4 is Figure 3 the enlarged view of A in

[0034] BRIEF DESCRIPTION OF DRAWINGS: 1, coating main body; 2, glue barrel; 3, sealing plate; 31, inner abutment ring; 32, barrel half ring; 33, inner bucket; 34, double sealing plate; 35, groove plate; 4, membrane port; 41, sealing cover; 42, glue injection bucket; 43, bucket support; 44, barrel pipe; 45, inner tube sealing plate; 46, air extraction pipe; 47, sliding rod; 48, barrel pipe motor; 49, lifting platform; 5, air supply pipe; 51, bottom plate; 52, side plate; 53, top plate; 54, membrane guide cylinder; 55, filter pipe; 56, calcium oxide block; 57, water absorption sponge part; 58, air blower; 59, heating pipe. DETAILED DESCRIPTION

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] The present application discloses a kind of composite film coating equipment, refer toFigure 1 , including the placement of the ground coating body 1, the film layer to be compounded from the lower part of the coating body 1, the shaped composite film is also wound in the lower part of the coating body 1, the upper part of the coating body 1 is provided with a sealing plate 3, the sealing plate 3 cooperates with the two side frame plates of the coating body 1 to form a sealed space, the coating body 1 is used for coating the film layer and the metering roller, coating roller and pressure roller for compounding are all located in the sealing plate 3, the film layer to be compounded is provided into the space surrounded by the sealing plate 3, the shaped composite film is provided out of the sealing plate 3, so that the outside air is not easy to directly contact the film layer to be compounded in the sealing plate 3 and the composite film just compounded.

[0037] Referring to Figure 1 and Figure 2 , the sealing plate 3 includes a horizontal bottom plate 51, three film passing ports 4 are provided through the lower surface of the bottom plate 51, two film passing ports 4 are provided for the film layer to be compounded to pass from bottom to top, and the remaining one film passing port 4 is provided for the shaped composite film to pass from top to bottom. The bottom plate 51 is slidingly connected to the vertical side of the two frame plates of the coating body 1 along the length direction of the bottom plate 51, the upper surfaces of the two ends of the length direction of the bottom plate 51 are tightly detachably connected with two vertical side plates 52, the upper surfaces of the two side plates 52 are tightly detachably connected with the same horizontal top plate 53, the bottom plate 51 and the side plate 52 and the side plate and the top plate 53 can be fixed by bolts or by setting the pull buckle, and the side surfaces of the bottom plate 51, the side plate 52 and the top plate 53 in the thickness direction can be provided with rubber layers to realize better sealing of the space surrounded by the sealing plate 3. The lower surface of the bottom plate 51 is rotatably connected with three groups of film guide cylinders 54, the axis direction of the film guide cylinder 54 is consistent with the width direction of the film layer to be compounded or the shaped composite film, each group of film guide cylinders 54 is provided with two, and the two film guide cylinders 54 of each group correspond to the opening sides of one film passing port 4, so that the film layer to be compounded or the shaped composite film passing through the film passing port 4 is not easy to contact the bottom opening side of the film passing port 4.

[0038] Referring to Figure 1 and Figure 2The filter tube 55 is provided with a water-absorbing sponge part 57 on the inner wall of one end, and the water-absorbing sponge part 57 can be a high water-absorbing sponge. Two groups of calcium oxide blocks 56 are fixedly connected in the filter tube 55, and each group of calcium oxide blocks 56 is uniformly distributed along the length direction of the filter tube 55. The two groups of calcium oxide blocks 56 are arranged in a staggered manner, and the projections of the two groups of calcium oxide blocks 56 on the end face of the filter tube 55 partially overlap, so that the air entering the filter tube 55 can be in contact with the calcium oxide blocks 56 as much as possible. The calcium oxide blocks 56 can be tightly filled with calcium oxide solids of appropriate particle size in a wire mesh, so that the air can pass through the calcium oxide blocks 56 to a certain extent. Meanwhile, a heating pipe 59 is provided around the outer wall of the filter tube 55. The hot water heated in the coating roller of the coating main body 1 can flow into the heating pipe 59 to heat the filter tube 55 to a certain extent, so as to accelerate the reaction between the calcium oxide blocks 56 and the water vapor in the air in the filter tube 55. In addition, the filter tube 55 can be sleeved with a sleeve pipe that contains the heating pipe 59 and is made of heat insulation and heat preservation materials, so that the heating pipe 59 is not easily exposed.

[0039] With reference to Figure 2 The filter tube 55 is provided with a water-absorbing sponge part 57 on the inner wall of one end, and the water-absorbing sponge part 57 can be a high water-absorbing sponge. Two groups of calcium oxide blocks 56 are fixedly connected in the filter tube 55, and each group of calcium oxide blocks 56 is uniformly distributed along the length direction of the filter tube 55. The two groups of calcium oxide blocks 56 are arranged in a staggered manner, and the projections of the two groups of calcium oxide blocks 56 on the end face of the filter tube 55 partially overlap, so that the air entering the filter tube 55 can be in contact with the calcium oxide blocks 56 as much as possible. The calcium oxide blocks 56 can be tightly filled with calcium oxide solids of appropriate particle size in a wire mesh, so that the air can pass through the calcium oxide blocks 56 to a certain extent. Meanwhile, a heating pipe 59 is provided around the outer wall of the filter tube 55. The hot water heated in the coating roller of the coating main body 1 can flow into the heating pipe 59 to heat the filter tube 55 to a certain extent, so as to accelerate the reaction between the calcium oxide blocks 56 and the water vapor in the air in the filter tube 55. In addition, the filter tube 55 can be sleeved with a sleeve pipe that contains the heating pipe 59 and is made of heat insulation and heat preservation materials, so that the heating pipe 59 is not easily exposed.

[0040] With reference to Figure 1 and Figure 3 The coating main body 1 is connected with two glue barrels 2 through pipelines. The main agent and the curing agent of the two-component adhesive are respectively placed in the two glue barrels 2. The two glue barrels 2 are connected with the metering pumps through the pipelines to quantitatively and proportionally deliver the main agent and the curing agent. The upper end of the glue barrel 2 is sealed and embedded with a sealing cover 41. The upper surface of the sealing cover 41 is connected with a glue pouring bucket 42 through a pipeline. A valve can be arranged on the pipeline between the glue pouring bucket 42 and the glue barrel 2, so as to close the valve to prevent the adhesive in the glue pouring bucket 42 from flowing into the glue barrel 2. The glue pouring bucket 42 is fixedly connected with a bucket support 43 placed on the ground. The lower end of the glue pouring bucket 42 is connected with the glue barrel 2. The upper end of the glue pouring bucket 42 is connected with a barrel pipe 44 through a corrugated pipe. The barrel pipe 44 can be made of high-strength plastic or steel. The end of the barrel pipe 44 away from the glue pouring bucket 42 is provided for mounting and fixing the two-component adhesive barrel. The volume of the glue pouring bucket 42 is large enough to accommodate a whole barrel of adhesive.

[0041] With reference to Figure 3 and Figure 4, the inner wall of the end of the bucket tube 44 away from the glue pouring hopper 42 is coaxially fixedly connected with an inner hopper 33, the small opening end of the inner hopper 33 is close to the center point of the bucket tube 44, the circumferential outer wall of the bucket tube 44 is fixedly connected with a groove plate 35, the groove plate 35 close to the inner hopper 33 is slidingly connected with an inner tube sealing plate 45 along the radial direction of the bucket tube 44, the inner tube sealing plate 45 abuts against the end face of the small opening end of the inner hopper 33, so that the adhesive in the inner hopper 33 cannot flow out. The groove plate 35 away from the inner hopper 33 is slidingly connected with a two-sealing plate 34 along the radial direction of the bucket tube 44, the two-sealing plate 34 can seal the bucket tube 44, each groove plate 35 can be provided with a lead screw and a motor, so that the two-sealing plate 34 and the inner tube sealing plate 45 move. The outer wall of the bucket tube 44 is communicated with a gas suction pipe 46, the end of the gas suction pipe 46 away from the bucket tube 44 is communicated with an external negative pressure pump, so that the air in the inside of the bucket tube 44 on the side of the inner hopper 33 can be sucked out.

[0042] Referring to Figure 3 , the outer wall of the bucket tube 44 is installed with a vertical sliding rod 47 on opposite sides, the bottom end of the sliding rod 47 is slidingly connected to the hopper support 43 along the horizontal radial direction of the bucket tube 44 when the bucket tube 44 is vertical, the sliding rod 47 can move horizontally by setting a roller motor and cooperating with the slide rail provided on the hopper support 43, so that the bucket tube 44 can be away from directly above the glue pouring hopper 42. The sliding rod 47 can be fixedly connected with a bucket tube motor 48 coaxially fixedly connected with the rotating point of the bucket tube 44, so that the bucket tube 44 can be turned over by 180 degrees when it is away from directly above the glue pouring hopper 42. The hopper support 43 located on one side of the glue pouring hopper 42 is installed with a lifting platform 49, the lower part of the lifting platform 49 can be provided with a motor and a lead screw or a hydraulic cylinder to make the upper part of the lifting platform 49 move in the vertical direction. The upper surface of the lifting platform 49 is used to place a barrel of opened adhesive barrel, the lifting platform 49 drives the adhesive barrel to rise and makes the outer wall of the edge of the adhesive barrel opening periphery slidingly enter the inner wall of the bucket tube 44.

[0043] Referring to Figure 4, the inner wall of one end of the inner bucket 33 is fixedly connected with the inner abutting ring 31, the annular end face of the inner abutting ring 31 away from the inner bucket 33 abuts on the edge end face of the adhesive barrel, and the inner diameter of the inner abutting ring 31 is greater than the maximum inner diameter of the inner bucket 33. The end face of one end of the barrel pipe 44 is slidingly connected with two barrel half rings 32 along the radial direction of the barrel pipe 44, the circumferential inner wall of the barrel half ring 32 can abut on the circumferential outer wall of the adhesive barrel close to the edge, and the end face of the barrel half ring 32 can clamp the edge of the adhesive barrel in the inner, so that the position of the adhesive barrel is fixed, at this time, the inner pipe sealing plate 45 does not close the inner bucket 33 and the two sealing plates 34 close the barrel pipe 44, then the air pipe 46 exhausts the air in the barrel pipe 44 on the side of the two sealing plates 34 towards the inner bucket 33 as much as possible. Then the lifting platform 49 is lowered, and the inner pipe sealing plate 45 is moved to close the inner bucket 33, then the barrel pipe motor 48 works to make the barrel pipe 44 reset and rotate, that is, the state that the adhesive barrel is located at the upper end of the barrel pipe 44, then the slide rod 47 resets and moves, so that the barrel pipe 44 moves to the upper of the glue injection bucket 42, then the two sealing plates 34 and the inner pipe sealing plate 45 move into the corresponding groove plate 35, so that the main agent or the curing agent in the adhesive barrel can flow out smoothly and be injected into the glue injection bucket 42 through the inner bucket 33.

[0044] The implementation principle of the composite film coating equipment of the embodiment of the application is that the sealing plate 3 is arranged on the coating main body 1, so that the glue coating and the compounding process of the film layer are not easy to contact with the air with high humidity, and the adhesive barrel is not easy to contact with too much air with high humidity during the process of injecting the main agent or the curing agent into the corresponding glue barrel 2, so as to reduce the influence on the two-component adhesive as much as possible, and the whole operation room where the coating main body 1 is located does not need to be controlled in humidity.

[0045] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so: all equivalent changes made on the basis of the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A composite film coating apparatus comprising a coating body (1) for compounding a plurality of film layers, a glue tank (2) communicating with the coating body (1) and supplying an adhesive, characterized in that: The coating body (1) is provided with a sealing plate (3) enclosing the composite part of the coating body (1) and the film layer, the sealing plate (3) is provided with a plurality of film passing openings (4) for passing the composite film or the film layer, the sealing plate (3) is communicated with a gas supply pipe (5) for supplying dry air into the space enclosed by the sealing plate (3), and the position of the gas supply pipe (5) communicated with the sealing plate (3) is close to the position of the sealing plate (3) provided with the film passing opening (4); the glue barrel (2) is detachably connected with a sealing cover (41), the sealing cover (41) is communicated with a glue pouring bucket (42), the glue pouring bucket (42) is fixedly connected with a bucket support (43), the glue pouring bucket (42) is communicated with a barrel pipe (44) for connecting the adhesive barrel, the barrel pipe (44) is slidably connected with an inner pipe sealing plate (45) for separating the inner part of the barrel pipe (44), the barrel pipe (44) is communicated with an air exhaust pipe (46) for exhausting the air at the side of the inner pipe sealing plate (45) away from the glue pouring bucket (42); the bucket support (43) is slidably connected with a sliding rod (47) along the radial direction of the glue pouring bucket (42), the outer wall of the barrel pipe (44) is rotatably connected with the sliding rod (47), and the barrel pipe motor (48) is arranged on the sliding rod (47) to drive the barrel pipe (44) to rotate by 180 degrees.

2. The composite film coating apparatus according to claim 1, wherein: The sealing plate (3) comprises a bottom plate (51) slidably connected with the coating body (1) and provided with the film passing opening (4), two side plates (52) slidably connected with the coating body (1) and abutting against the bottom plate (51), and a top plate (53) slidably connected with the coating body (1) and abutting against the side plate (52).

3. The composite film coating apparatus of claim 2, wherein: The outer surface of the bottom plate (51) is rotatably connected with a film guide cylinder (54) at a position close to the film passing opening (4), and one set of two film guide cylinders (54) is arranged corresponding to each film passing opening (4).

4. The composite film coating apparatus of claim 1, wherein: The gas supply pipe (5) is communicated with a filter pipe (55) for entering air, the filter pipe (55) is provided with calcium oxide blocks (56), the filter pipe (55) is provided with a water absorption sponge part (57) at an end away from the gas supply pipe (5), and the filter pipe (55) and the gas supply pipe (5) are communicated with a blower (58) for making the gas flow into the gas supply pipe (5).

5. The composite film coating apparatus of claim 4, wherein: The calcium oxide blocks (56) are arranged in two groups, each group comprises a plurality of calcium oxide blocks (56), the two groups of calcium oxide blocks (56) are arranged in a staggered manner, and the projections of the two groups of calcium oxide blocks (56) on the end surface of the filter pipe (55) overlap.

6. The composite film coating apparatus of claim 4, wherein: The filter tube (55) is provided with a heating tube (59) outside the wall of the filter tube (55) for heating the filter tube (55).

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