Production line of building protective film

Abstract

The utility model discloses a production line of a building protective film. The production line comprises an unwinding machine of a tire base, an unwinding machine of two isolating membranes, a first gumming machine for coating one surface of the tire base with a butyl rubber material, and a first laminating machine for laminating one isolating membrane on the outer side of the butyl rubber material, the second gumming machine is used for coating the butyl rubber material on the other side of the tire base; the second film laminating machine is used for coating another isolating film on the outer side of the butyl rubber material on the other side of the tire base; the two screw extruders are respectively connected with the first gluing machine and the second gluing machine. The production line can be used for producing a single-sided adhesive building protective film and also can be used for producing a double-sided adhesive building protective film, so that the cost and the equipment purchase expense are saved, the production line layout is reasonable, and the prepared building protective film has a better protective effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of building waterproof and anticorrosive materials, and in particular relates to production equipment for a building protective film. Background Art

[0002] Traditional asphalt-based self-adhesive waterproof membranes have been widely used in the field of building waterproof construction due to their low prices and simple and convenient construction. Although asphalt-based self-adhesive waterproof membranes have good ductility and waterproof and anti-seepage properties and can be cold-constructed, they only need to tear off the isolation film to bond with the base surface layer through their own adhesion. However, they also have their own defects, such as poor aging and UV resistance, so they cannot be used outdoors, and their weather resistance and temperature stability are also relatively poor. In low temperature environments, their bonding properties will decrease, causing difficulties in construction, etc. In order to make up for the shortcomings of asphalt-based self-adhesive waterproof membranes, various highly weather-resistant polymer waterproof materials suitable for exposed use have been developed on the market, such as butyl self-adhesive waterproof materials, etc. The applicant has also developed a building protective membrane with good UV aging resistance and weather resistance. The building protective membrane has the following characteristics: Figure 1 The double-sided adhesive shown Figure 2 The single-sided adhesive shown has two different structures. Generally speaking, building protective films of different structures are produced by different production lines, and the production line equipment provided by the utility model can be compatible with the production of Figure 1 and Figure 2 There are two types of products: single-sided and double-sided. Utility Model Content

[0003] The utility model aims to provide a production line which can be used for preparing building protective films with different structures.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The production line of building protection film includes a base unwinder, two isolation film unwinders, a first glue coating machine arranged in the downstream direction of the base unwinder, a first laminating machine arranged in the downstream direction of the first glue coating machine and the unwinder of an isolation film, a second glue coating machine arranged in the downstream direction of the first laminating machine, and a second laminating machine arranged in the downstream direction of the second glue coating machine and the unwinder of another isolation film, the first glue coating machine and the second glue coating machine are respectively connected to a screw extruder, and a plurality of guide rollers for conveying are arranged between the upstream and downstream.

[0006] The outlet ends of the first glue coating machine and the second glue coating machine are provided with cooling equipment, and the cooling equipment is an air cooler.

[0007] The first laminating machine and the second laminating machine are respectively provided with a pair of composite rollers arranged side by side in the vertical direction, and a bending roller is arranged at the front end of the composite roller.

[0008] The installation order on the ground is the tire base unwinding machine, the first glue coating machine, the first film coating machine, the two isolation film unwinding machines, the second film coating machine and the second glue coating machine. The multi-channel guide roller is installed at the bottom of the isolation film unwinding machine and the second film coating machine to transmit between the first film coating machine and the second glue coating machine.

[0009] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0010] 1. The utility model can be compatible with the production of single-sided adhesive structure and double-sided adhesive structure of building protection film, can save equipment purchase costs and reduce the cost of equipment modification.

[0011] 2. The utility model places the second glue coater at a more rear end position than the second laminating machine, that is, after the material comes out of the first laminating machine, it first goes around from the bottom to the second glue coater which is farther away for glue coating, and then is transmitted back to the second laminating machine. In this way, the transmission path between the first laminating machine and the second glue coater becomes longer. Because the material after the first lamination has been cooled by the cooling roller, it cannot be immediately restored to normal temperature. If glue is subsequently applied on the hot film, wrinkles are likely to occur. The longer transmission path allows the transmission process to obtain a relatively long cooling time, and the gluing effect is better.

[0012] 3. The cooling equipment adopts air cooling. Compared with the spray cooling method used in the past, air cooling can prevent the membrane from being stained with water droplets or water vapor, and avoid the undesirable phenomenon of residual moisture inside the product, especially when the temperature rises, which will evaporate and form bubbles or hollows. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a double-sided adhesive building protective film structure;

[0014] Figure 2 It is a structure of a single-sided adhesive building protective film;

[0015] Figure 3 It is a simplified schematic diagram of the production line of the utility model;

[0016] Figure 4 It is a top view of the glue coating machine of the utility model connected with the screw extruder; DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Example

[0019] Figure 1 The double-sided adhesive building protective film shown in the figure includes a base 1' in the middle, two butyl adhesive layers 2' coated on both sides of the base 1', and a separation film 3' compounded on the outermost layers of the butyl adhesive layers 2' on both sides. The base 1' can be made of PE film or PET film.

[0020] Figure 2 The single-sided adhesive building protective membrane is shown, which includes a fluorocarbon membrane 4', a butyl rubber self-adhesive layer 2' coated on the fluorocarbon membrane 4', and a separation membrane 3' attached to the other side of the butyl rubber self-adhesive layer 2'.

[0021] Figure 3 The figure shows a production line for preparing the above-mentioned building protective film, which includes a tyre base unwinder 1, two insulating film unwinders 6, a first glue coating machine 2 for coating butyl rubber on one side of the tyre base, a first film coating machine 5 for coating one of the insulating films on the outside of the butyl rubber, a second glue coating machine 7 for coating butyl rubber on the other side of the tyre base, and a second film coating machine 8 for coating another insulating film on the outside of the butyl rubber on the other side; it also includes two screw extruders 3 respectively connected to the first glue coating machine 2 and the second glue coating machine 7, for providing glue to the glue coating machines.

[0022] The tire base unwinding machine 1 is a double-station machine, provided with two tire base unwinding rollers 11 for placing the tire base 1 ′ and multiple guide rollers for guiding the tire base 1 ′ to be transmitted to the first glue coating machine 2 .

[0023] See Figure 4 As shown in the top view, the first glue coating machine 2 is connected to the screw extruder 3 through a pipe 22. A feed hopper 31 is provided at the feed section of the screw extruder 3, which is used to put the raw material from the feed hopper 31 and convey it to the extrusion section of the barrel. The raw material is extruded and heated into a molten state by a screw 33 driven by a motor 32, and extruded from an extrusion head 34 at the rear end of the barrel. The first glue coating machine 2 is provided with a coating die 21, and the coating die 21 is connected to the extrusion head 34 of the screw extruder 3 through a pipe 22. The molten rubber is transported to the coating die 21 through the pipe 22, and the coating die 21 scrapes the rubber on the tire base 1' passing through to form a butyl rubber self-adhesive layer 2'.

[0024] The tire base 1' is coated with glue at the coating die head 21, and the tire base 1' after being coated with glue is cooled by the cooling device 4, and then enters the first laminating machine 5, and the isolation film 3' is also conveyed to the first laminating machine 5. The first laminating machine 5 is used to press the isolation film 3' pulled over and the tire base 1' coated with the butyl adhesive self-adhesive layer 2' together. The cooling device 4 is a cold air blower.

[0025] The first laminating machine 5 is provided with a pair of composite rollers 51 arranged side by side in the vertical direction, and cooling water is passed into the composite rollers 51. The tire base 1' and the separator 3' are drawn into the gap between the two composite rollers 51 for laminating. The separator unwinding machine 6 is provided with two separator unwinding rollers 61 for placing the separator 3' and multiple guide rollers for guiding the separator 3' to be transported to the composite rollers 51.

[0026] After the lamination, the semi-finished single-sided coil is transferred from the multiple guide rollers at the bottom to the second glue coating machine 7, which coats the other side of the tire base 1' with glue to form a butyl rubber self-adhesive layer 2' on the other side. The tire base 1' coated with the butyl rubber self-adhesive layer 2' on both sides is cooled by the cooling device 4 and then enters the second laminating machine 8. At the same time, the other isolation film 3' is also transferred to the laminating machine 8 by the guide rollers. The two are pulled into the gap between the two composite rollers 81 for composite, and then rolled up to form the final Figure 1 Products shown.

[0027] The first laminating machine 5 is provided with a bending roller 52 at the front end of the composite roller 51 entering from above, and the second laminating machine 8 is also provided with a bending roller 82 at the front end of the composite roller 81 entering from above, which is used to assist in unfolding the isolation film 3' during the rotation of the bending roller when the isolation film 3' is not rolled flat or has some longitudinal wrinkles, so that it can be coated flatly.

[0028] After the material comes out of the first laminating machine 5, it enters the second gluing machine 7 from the bottom of the two isolation film unwinding machines 6 and the bottom of the second laminating machine 8. Multiple guide rollers installed at the bottom of the production line transfer the material from the bottom of the pedal of the workstation, leaving enough operating space and observation space for the operator at the top.

[0029] In combination with the above, the preparation method of the double-sided adhesive building protective film comprises the following steps:

[0030] 1. Put the prepared self-adhesive raw material into the screw extruder.

[0031] 2. The screw extruder applies the molten butyl rubber material extruded onto one side of the tire base through the coating die of the first coating machine to form a butyl rubber self-adhesive layer on one side.

[0032] 3. Use the first laminating machine to coat the isolation film on one side on the butyl rubber self-adhesive layer.

[0033] 4. Another screw extruder applies the molten butyl rubber material to the other side of the tire base through the coating die of the second coating machine to form a butyl rubber self-adhesive layer on the other side.

[0034] 5. Use the second laminating machine to coat another isolation film on the other side of the butyl rubber self-adhesive layer.

[0035] When production Figure 2 When the single-sided structure product is shown, only the left part of the production line is used, that is, the fluorocarbon film 4' roll is placed on the tire base unwinding roller 11, and the fluorocarbon film 4' is coated with a rubber material to form a butyl rubber self-adhesive layer 2' when it is transmitted through the first glue coating machine 2, and after cooling, it enters the first laminating machine 5 to be coated with a release film 3', and finally rolled up to form Figure 2 The single-sided adhesive building protective membrane shown.

[0036] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. The production line of building protective film is characterized by: It includes a tire base unwinding machine, two isolation film unwinding machines, a first glue coating machine arranged in the downstream direction of the tire base unwinding machine, a first coating machine arranged in the downstream direction of the first glue coating machine and the unwinding machine of an isolation film, a second glue coating machine arranged in the downstream direction of the first coating machine, and a second coating machine arranged in the downstream direction of the second glue coating machine and the unwinding machine of another isolation film. The first glue coating machine and the second glue coating machine are respectively connected to a screw extruder, and a plurality of guide rollers for conveying are arranged between the upstream and downstream.

2. The production line of building protective film according to claim 1, characterized in that: The outlet ends of the first glue coating machine and the second glue coating machine are provided with cooling equipment, and the cooling equipment is an air cooler.

3. The production line of building protective film according to claim 2, characterized in that: The first laminating machine and the second laminating machine are respectively provided with a pair of composite rollers arranged side by side in the vertical direction, and a bending roller is arranged at the front end of the composite roller.

4. The production line of building protective film according to claim 1, characterized in that: The installation sequence on the ground is the tire base unwinding machine, the first glue coating machine, the first laminating machine, the unwinding machine of the two isolation films, the second laminating machine and the second glue coating machine. The multi-channel guide roller is installed at the bottom of the isolation film unwinding machine and the second laminating machine for transmission between the first laminating machine and the second glue coating machine.

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