Multi-layer gluing device and production equipment of waterproof roll

Abstract

The utility model provides a multi-layer gluing device and production equipment of a waterproof roll. The multi-layer gluing device comprises a fixed seat, a plurality of glue spraying devices and a glue spraying device, the coating roller comprises a rotating shaft rotationally connected to the fixed seat, and the rotating shaft extends and is distributed in the first direction; the coating piece set comprises at least two coating pieces, the at least two coating pieces are distributed in the radial direction of the coating roller at intervals, coating nozzles of the coating pieces extend in the axial direction of the coating roller, all the coating pieces are slidably connected to the fixing base, and all the coating pieces can be close to or far away from a to-be-coated sheet located on the coating roller in the radial direction of the coating roller when sliding in the radial direction of the coating roller; wherein the extension lines of the coating nozzles along the spraying direction are arranged in an intersecting manner, and the coating pieces are used for forming different glue layers on the to-be-coated sheet. According to the multi-layer gluing device disclosed by the embodiment of the invention, a plurality of glue layers can be formed on the to-be-coated sheet in one production process, and the plurality of glue layers can be formed by various hot melt glue, so that the selectivity of the hot melt glue is increased, and the reduction of the production cost is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waterproofing engineering of industrial and civil buildings, and particularly relates to a double-layer gluing device and a production equipment of waterproofing coiled material. BACKGROUND

[0002] At present, in the production process equipment of the polymer pre-laid waterproofing coiled material, a set of slit die is generally used for coating in the polymer waterproofing coiled material. The hot melt glue block produced in the previous process is put into 2-3 glue melting boxes. After the solid hot melt glue is melted in the glue melting box, the gear pump is used for metering, the glue pipe with heating and heat preservation is used for leaving in a set of slit die, and the glue layer is evenly coated in the polymer waterproofing sheet through the flow channel in the slit die, and then enters the sand covering or film covering.

[0003] In the production process, in order to achieve the performance index of the product, the glue layer needs a certain thickness requirement, for example, the glue layer thickness of 0.26mm, and the cost of the hot melt glue is relatively high, so that the cost of the polymer pre-laid waterproofing coiled material is relatively high. CONTENT OF THE INVENTION

[0004] The embodiment of the present application provides a multi-layer gluing device and a production equipment of waterproofing coiled material, which can form multiple glue layers in one production process, so that the number of glue layers can be selectively increased, and the production cost is reduced.

[0005] In a first aspect, the embodiment of the present application provides a multi-layer gluing device, which comprises a fixed seat, a coating roller comprising a rotating shaft rotatably connected to the fixed seat, the rotating shaft extending along a first direction, and a coating element group comprising at least two coating elements, the at least two coating elements being distributed at intervals along the radial direction of the coating roller, and the coating nozzles of the coating elements extending along the axial direction of the coating roller, each coating element being slidably connected to the fixed seat, and each coating element being capable of sliding along the radial direction of the coating roller to approach or move away from the to-be-coated sheet located on the coating roller; wherein the extension lines of the coating nozzles along the spraying direction are arranged at intersections, and each coating element is used to form different glue layers on the to-be-coated sheet.

[0006] According to the embodiment of the first aspect of the present application, the extension lines of the coating nozzles along the spraying direction are at a preset angle a, 60 degrees ≤ a ≤ 120 degrees.

[0007] According to the embodiment of the first aspect of the present application, the coating element group comprises a first coating element and a second coating element, the first coating element comprises a first coating nozzle, and the first coating nozzle is used to form a first glue layer on the surface of the to-be-coated sheet; the second coating element comprises a second coating nozzle, and the second coating nozzle is used to form a second glue layer on the side of the first glue layer away from the to-be-coated sheet.

[0008] According to the embodiment of the first aspect of the present application, the extension lines of the first coating nozzle and the second coating nozzle along the spraying direction are at a preset angle b, 80 degrees ≤ b ≤ 100 degrees.

[0009] According to the embodiment of the first aspect of the present application, the coating member further comprises a support seat; the support seat is fixedly connected with the coating nozzle one by one and is slidingly connected with the fixed seat; the support seat slides relative to the fixed seat to adjust the distance between the coating nozzle and the coating roller.

[0010] According to the embodiment of the first aspect of the present application, the multi-layer gluing device further comprises a hot melt glue tank, and the coating member groups are connected with the hot melt glue tank; the hot melt glue tank is used to provide hot melt glue to the coating member groups.

[0011] According to the embodiment of the first aspect of the present application, the multi-layer gluing device further comprises a guide roller, which is rotationally connected to the fixed seat and extends along the first direction; the guide roller is located at a previous station of the coating roller in the movement direction of the sheet, and is used to move the sheet along the preset route towards the coating roller.

[0012] According to the embodiment of the first aspect of the present application, the multi-layer gluing device further comprises an edge coating coating member and a support roller; the edge coating coating member and the support roller are located at a subsequent station of the coating roller in the movement direction of the sheet, and are used to perform edge coating on the sheet.

[0013] According to the embodiment of the first aspect of the present application, the multi-layer gluing device further comprises a film covering assembly, which is located at a subsequent station of the edge coating coating member and the support roller in the movement direction of the sheet, and is used to perform film covering on the sheet after the edge coating process.

[0014] In the second aspect, the embodiment of the present application provides a production equipment of waterproof roll material, which comprises the multi-layer gluing device described above.

[0015] The multi-layer gluing device of the embodiment of the present application can form multiple glue layers on the sheet to be coated in one production process by using at least two coating members distributed along the radial direction of the coating roller, and the multiple glue layers can be formed by multiple hot melt glues, so that the selectivity of the hot melt glue is increased, which is beneficial to reduce the production cost; meanwhile, the multiple coating nozzles of the multi-layer gluing device in the embodiment of the present application correspond to one coating roller, which is simple in structure and saves space. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other characteristics, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the attached drawings, in which the same or similar references denote the same or similar features.

[0017] Figure 1 FIG. 1 is a structural schematic diagram of a multi-layer gluing device provided by the embodiment of the present application.

[0018] 10, fixing seat; 11, guide rail; 12, transmission device; 20, coating roller; 21, rotating shaft; 31, first coating member; 311, first coating nozzle; 312, first supporting seat; 32, second coating member; 321, second coating nozzle; 322, second supporting seat; 33, connecting plate; 40, guide roller; 41, edge coating member; 42, supporting roller; 43, film coating assembly; S1, sheet. DETAILED DESCRIPTION

[0019] Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application, as is apparent to one of ordinary skill in the art. In the drawings and description below, well-known structures and techniques have not been shown or described in detail in order not to obscure the application. Also, the size of some of the structures can be exaggerated relative to others for clarity. Further, features, structures or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0020] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is more than two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is merely for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] The orientation words appearing in the following description are the directions shown in the drawings, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In the prior art, in order to achieve the performance index of the waterproofing membrane product, the glue layer needs a certain thickness requirement, and the cost of hot melt adhesive is high, so that the cost of the polymer pre-paved waterproofing membrane is high.

[0023] To solve the above problems, the embodiment of the present application provides a multi-layer gluing device and a production equipment of waterproof coiled material, which can form multiple glue layers in one production process, so that the number of glue layers can be selectively increased, and the production cost is reduced.

[0024] In a first aspect, referring to Figure 1 The embodiment of the present application provides a multi-layer gluing device, which comprises a fixing seat 10, a coating roller 20 comprising a rotating shaft 21 rotatably connected to the fixing seat 10, the rotating shaft 21 extending along a first direction, and a coating element group comprising at least two coating elements, the at least two coating elements being distributed along a radial direction of the coating roller 20 and the coating nozzles of the coating elements extending along an axial direction of the coating roller 20, each coating element being slidably connected to the fixing seat 10, and each coating element being capable of sliding along the radial direction of the coating roller 20 to approach or move away from a to-be-coated sheet S1 located on the coating roller 20, wherein the extension lines of the coating nozzles along the spraying direction are intersected, and each coating element is used to form different glue layers on the to-be-coated sheet S1.

[0025] The fixing seat 10 is used to provide support for other components in the multi-layer gluing device. The shape of the fixing seat 10 can be changed in structure or shape according to the position adjustment of other components in the multi-layer gluing device. For example, the fixing seat 10 comprises a first plate and a second plate connected to both sides of the rotating shaft 21 of the coating roller 20.

[0026] The coating roller 20 comprises a rotating shaft 21 rotatably connected to the fixing seat 10 and extending along a first direction. When the rotating shaft 21 rotates, the to-be-coated sheet S1 moves with the coating roller 20. The coating elements can coat the to-be-coated sheet S1 with glue, and the coating roller 20 cooperates with the coating elements. When the to-be-coated sheet S1 is rotated by the coating roller 20 to face the coating elements, the coating elements spray hot melt glue to the to-be-coated sheet S1 located on the coating roller 20 for glue coating.

[0027] The coating element group comprises at least two coating elements, i.e., the coating element group can have multiple coating elements, for example, two, three, four or more. The coating elements are used to coat the to-be-coated sheet S1 with glue. When the coating elements have multiple coating elements, the to-be-coated sheet S1 can be coated with glue in sequence while moving, so as to form multiple glue layers on the to-be-coated sheet S1.

[0028] The multi-layer gluing device of the embodiment of the present application provides the possibility of multi-layer coating of glue layers. The materials of the multiple glue layers can be different, and the difference of the glue coating can be realized. The types of hot melt glue can be more selectively used in the preparation of the coiled material, for example, the high-cost and low-cost hot melt glues can be combined for application, which is beneficial to reduce the production cost.

[0029] Exemplarily, the coating members can be two, for forming two layers of glue on the to-be-coated sheet S1, the first layer of glue being in direct contact with the to-be-coated sheet S1, and the second layer of glue being formed on the layer of the first glue away from the to-be-coated sheet S1. The first layer of glue can be selected to have good adhesion and be of high cost, while the second layer of glue can be selected to have low price, since it is in contact with the isolation layer such as sand and has low requirement on adhesion, thereby reducing the cost.

[0030] The at least two coating members are distributed in a radial direction of the coating roller 20, i.e., are distributed at a distance apart from each other, so that the glue layers can be formed on the to-be-coated sheet S1 in sequence during movement of the to-be-coated sheet S1, and the plurality of glue layers are formed in batches.

[0031] Specifically, the coating members include coating nozzles, which are distributed in an axial direction of the coating roller 20, so that the glue coating range of the coating nozzles covers a preset length in the axial direction of the coating roller 20. Preferably, the length of the coating nozzles extending in the axial direction of the coating roller 20 is equal to the axial length of the coating roller 20.

[0032] The coating members are in sliding connection with the fixed seat 10, and the sliding of the coating members can be towards or away from the coating roller 20 in a radial direction of the coating roller 20, so that the distance between the coating members and the coating roller 20 can be adjusted. In the working state, the coating members are towards or away from the to-be-coated sheet S1 located on the coating roller 20 in the radial direction of the coating roller 20, so that the distance between the coating members and the to-be-coated sheet S1 can be adjusted, and the thickness of the formed glue layer can be adjusted.

[0033] The coating members are in sliding connection with the fixed seat 10, and the sliding of the coating members can be towards or away from the coating roller 20 in a radial direction of the coating roller 20, so that the distance between the coating members and the coating roller 20 can be adjusted. In the working state, the coating members are towards or away from the to-be-coated sheet S1 located on the coating roller 20 in the radial direction of the coating roller 20, so that the distance between the coating members and the to-be-coated sheet S1 can be adjusted, and the thickness of the formed glue layer can be adjusted.

[0034] It can be understood that the multi-layer coating device includes a transmission mechanism 12, the transmission mechanism 12 includes a motor, and the transmission mechanism 12 drives the coating members to move relative to the fixed seat 10.

[0035] The extension lines of the coating nozzles in the spraying direction are intersected, and the spraying direction can be in a radial direction of the coating roller 20, so that the coating nozzles are arranged at different angles towards the coating roller 20, one coating roller 20 can be corresponded to a plurality of coating nozzles, so that multi-layer coating can be realized in a relatively simple device, and space is saved.

[0036] The coating nozzles in the embodiments of the present application can be slit dies.

[0037] In summary, the multi-layer gluing device in the embodiment of the application can form multiple glue layers on the sheet S1 to be coated in one production process by using at least two coating parts distributed along the radial direction of the coating roller 20, and the multiple glue layers can be formed by multiple hot melt adhesives, so that the selectivity of the hot melt adhesives is increased, and the production cost is reduced. Meanwhile, the multi-layer gluing device in the embodiment of the application has multiple coating nozzles corresponding to one coating roller 20, and has a simple structure and saves space.

[0038] In some embodiments, the extension line of each coating nozzle along the spraying direction forms a preset angle a, 60 degrees ≤ a ≤ 120 degrees.

[0039] In the embodiment of the application, the angle formed by the extension line of each coating nozzle along the radial direction is controlled to be within the above range, so that each coating nozzle is distributed along the radial direction of the coating roller 20 at a preset distance, which is beneficial to the effective formation of each glue layer. For example, after the first coating nozzle coats the first glue layer on the sheet S1 to be coated, the sheet S1 needs to move a preset distance before the second coating nozzle coats the second glue layer on the sheet S1. Before the second glue layer is coated, the first glue layer on the surface of the sheet S1 has been dried and fixed to a certain extent, which is beneficial to improve the stability of the glue layer on the surface of the sheet S1.

[0040] For example, the extension line of each coating nozzle along the spraying direction forms a preset angle a, and the value of a is 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, 90 degrees, 95 degrees, 100 degrees, 105 degrees, 110 degrees, 115 degrees, 120 degrees, or an interval range formed by any two of the above values.

[0041] Preferably, the extension line of each coating nozzle along the spraying direction forms a preset angle a, and 80 degrees ≤ a ≤ 100 degrees.

[0042] In some embodiments, please continue to refer to Figure 1 The coating part group includes a first coating part 31 and a second coating part 32. The first coating part 31 includes a first coating nozzle 311, and the first coating nozzle 311 is used to form a first glue layer on the surface of the sheet S1 to be coated. The second coating part 32 includes a second coating nozzle 321, and the second coating nozzle 321 is used to form a second glue layer on the side of the first glue layer away from the sheet S1 to be coated.

[0043] The coating part group can coat the sheet S1 to be coated with hot melt adhesive by starting the first coating part 31 and / or the second coating part 32, so as to form two glue layers.

[0044] In the working state, when the to-be-coated sheet S1 rotates with the coating roller 20 to the first coating nozzle 311 of the first coating element 31, the first coating nozzle 311 coats the hot melt adhesive to the surface of the to-be-coated sheet S1 to form a first adhesive layer, and when the sheet S1 rotates with the coating roller 20 to the second coating nozzle 321 of the second coating element 32, the second coating nozzle 321 coats the hot melt adhesive to the surface of the first adhesive layer away from the sheet S1 (S1) to form a second adhesive layer.

[0045] The hot melt adhesive for forming the first adhesive layer and the hot melt adhesive for forming the second adhesive layer are preferably two different hot melt adhesives to realize differentiated gluing.

[0046] It can be understood that the hot melt adhesive for forming the first adhesive layer and the hot melt adhesive for forming the second adhesive layer can also be the same, and the same adhesive is coated twice, which is beneficial to control the thickness of the adhesive layer, and the present application is not limited thereto.

[0047] In some embodiments, the extension lines of the first coating nozzle 311 and the second coating nozzle 321 along the spraying direction form a preset angle b, 80 degrees ≤ b ≤ 100 degrees.

[0048] The present application controls the angle formed by the extension lines of the first coating nozzle 311 and the second coating nozzle 321 along the spraying direction within the above range, so that the first coating nozzle 311 and the second coating nozzle 321 are distributed along the radial direction of the coating roller 20 at a preset distance, which is beneficial to the effective formation of each adhesive layer. After the first coating nozzle coats the to-be-coated sheet S1 to form the first adhesive layer, the sheet S1 needs to move a preset distance before the second adhesive layer is coated on the sheet S1 by the second coating nozzle 321. Before the second adhesive layer is coated, the first adhesive layer has been dried and fixed on the surface of the sheet S1, which is beneficial to improve the stability of the adhesive layer on the surface of the sheet S1.

[0049] Exemplarily, the extension lines of the first coating nozzle 311 and the second coating nozzle 321 along the spraying direction form a preset angle b, and the value of b is 80 degrees, 85 degrees, 90 degrees, 95 degrees, 100 degrees, or an interval range formed by any two of the above values.

[0050] Preferably, the extension lines of the first coating nozzle 311 and the second coating nozzle 321 along the spraying direction form an angle of 90 degrees.

[0051] Exemplarily, the extension line of the first coating nozzle 311 along the spraying direction is arranged along the horizontal direction, and the extension line of the second coating nozzle 321 along the spraying direction is arranged along the vertical direction, so that the production line of the multi-layer gluing device is smooth, and the device saves space.

[0052] In some embodiments, please continue to refer to Figure 1The coating member further comprises a support seat; the support seat is fixedly connected with the coating nozzle one by one and is slidingly connected with the fixed seat 10; the support seat slides relative to the fixed seat 10 to adjust the distance between the coating nozzle and the coating roller 20.

[0053] The support seat corresponds to the coating nozzle one by one, that is, there are as many support seats as coating nozzles, for example, when the device comprises a first coating nozzle 311 and a second coating nozzle 321, the device comprises a first support seat 312 and a second support seat 322, wherein the first coating nozzle 311 is fixedly connected with the first support seat 312, and the second support seat 322 is fixedly connected with the second coating nozzle 321.

[0054] The support seat is fixedly connected with the coating nozzle, and the support seat can support and fix the coating nozzle; the support seat is slidingly connected with the fixed seat 10, so that the coating nozzle slides by driving the support seat to slide relative to the fixed seat 10, so as to adjust the distance between the coating nozzle and the sheet S1.

[0055] In some embodiments, referring to Figure 1 The fixed seat is provided with a first guide rail 11 to enable the support seat to slide along the fixed seat 10. Exemplarily, the first support seat 312 is slidingly connected with the fixed seat 10 through the first guide rail 11.

[0056] In some embodiments, the support seat is slidingly connected with the fixed seat through a connecting plate 33, wherein the connecting plate 33 is fixedly connected with the fixed seat, and the support seat is slidingly connected with the connecting plate 33. Please continue to refer to Figure 1 Exemplarily, the connecting plate 33 is provided with a second guide rail 34, and the second support seat 322 is slidingly connected with the connecting plate 33 through the second guide rail 34.

[0057] It can be understood that the multi-layer coating device comprises a transmission mechanism 12, the support seat is connected with the transmission mechanism 12, and the transmission mechanism 12 comprises a motor, and the transmission mechanism 12 drives the support seat to move.

[0058] In some embodiments, the multi-layer coating device further comprises a hot melt adhesive tank, and the coating member groups are respectively connected with the hot melt adhesive tank, and the hot melt adhesive tank is used to provide hot melt adhesive to the coating member groups.

[0059] The multi-layer coating device in the embodiments of the present application can be provided with a hot melt adhesive tank, and the hot melt adhesive tank is connected with each coating member in the coating member group through a conveying pipe to convey hot melt adhesive to each coating member.

[0060] Exemplarily, the hot melt adhesive tank is connected with the first coating member 31 and the second coating member 32 respectively to convey hot melt adhesive to the first coating member 31 and the second coating member 32 respectively.

[0061] In some embodiments, the hot melt glue tank comprises a first glue tank and a second glue tank, the first glue tank is connected with the first coating part 31, and the second glue tank is connected with the second coating part 32, and the first glue tank and the second glue tank respectively deliver the same or different kinds of hot melt glue to the first coating part 31 and the second coating part 32.

[0062] The multi-layer gluing device in the embodiments of the present application can also not have a hot melt glue tank by itself, and the purpose can also be achieved by connecting an external hot melt glue tank, and the present application is not limited thereto.

[0063] In some embodiments, please continue to refer to Figure 1 , the multi-layer gluing device further comprises a guide roller 40, the guide roller 40 is rotationally connected to the fixed seat 10, the guide roller 40 extends along the first direction, and the guide roller 40 is located at a previous station of the coating roller 20 in the movement direction of the sheet S1, and is used for guiding the sheet S1 to move along the preset route towards the coating roller 20.

[0064] The multi-layer gluing device comprises the guide roller 40, the guide roller 40 also extends along the first direction, and the guide roller 40 is arranged to guide the sheet S1 to move along the preset route. In the movement direction of the sheet S1, the guide roller 40 is located at a previous station of the coating roller 20, that is, the sheet S1 passes through the guide roller 40 before reaching the coating roller 20 for gluing. The guide roller 40 drives the sheet S1 to move when rotating, and the sheet S1 moves towards the coating roller 20 under the guidance of the guide roller 40, which is conducive to improving the smoothness of the production process.

[0065] In some embodiments, please continue to refer to Figure 1 , the multi-layer gluing device further comprises an edge coating part 41 and a supporting roller 42, and the edge coating part 41 and the supporting roller 42 are located at a subsequent station of the coating roller 20 in the movement direction of the sheet S1, and are used for edge coating the sheet S1.

[0066] The multi-layer gluing device comprises the edge coating part 41 and the supporting roller 42, and the edge coating part 41 and the supporting roller 42 cooperate to perform edge coating on the sheet S1. In the movement direction of the sheet S1, the edge coating part 41 and the supporting roller 42 are located at a subsequent station of the coating roller 20, that is, edge coating is performed after the multi-layer glue coating is completed.

[0067] For example, the edge coating part 41 performs edge coating of 7cm-10cm on the sheet S1 to improve the stability of the coiled material.

[0068] In some embodiments, please continue to refer to Figure 1 , further comprising a film covering assembly 43, and the film covering assembly 43 is located at a subsequent station of the edge coating part 41 and the supporting roller 42 and the coating roller 20 in the movement direction of the sheet S1, and is used for film covering the sheet S1 after the edge coating process is completed.

[0069] The multi-layer gluing device comprises a film covering assembly 43 for covering the sheet S1. The film covering assembly 43 is located at a position behind the edge coating assembly 41 and the supporting roller 42 in the direction of movement of the sheet S1, i.e. after the edge coating process is completed, the film covering process is performed.

[0070] In the second aspect, the embodiments of the present application provide a waterproof roll production equipment, comprising the multi-layer gluing device.

[0071] The waterproof roll production equipment comprises the multi-layer gluing device of the present application, so that at least two coating assemblies distributed along the radial direction of the coating roller 20 can form multiple glue layers on the sheet S1 in one production process. The multiple glue layers can be formed by multiple hot melt adhesives, so that the selectivity of the hot melt adhesives is increased, which is beneficial to reduce the production cost. In addition, the multiple coating nozzles correspond to one coating roller 20 in the embodiments of the present application, so that the structure is simple and the space is saved.

[0072] In addition to the multi-layer gluing device, the waterproof roll production equipment of the embodiments of the present application can further comprise at least one of a unwinding device, a sand covering device and a winding device.

[0073] Although the present application has been described with reference to the preferred embodiments, various improvements can be made and equivalent replacements can be made to the components without departing from the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multi-layer gluing apparatus, characterized in that, The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device.

2. The multi-layer gluing apparatus according to claim 1, wherein The application relates to a multi-layer glue coating device.

3. The multi-layer gluing apparatus according to claim 1, wherein The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device.

4. The multi-layer gluing apparatus according to claim 3, wherein The application relates to a multi-layer glue coating device.

5. The multi-tiered gluing apparatus of claim 1, wherein, The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device.

6. The multi-tiered gluing apparatus of claim 1, wherein, The application relates to a multi-layer glue coating device.

7. The multi-tiered gluing apparatus of claim 1, wherein, The application relates to a multi-layer glue coating device.

8. The multi-tiered gluing apparatus of claim 1, wherein, The application relates to a multi-layer glue coating device.

9. The multi-tiered gluing apparatus of claim 8, wherein, The application relates to a multi-layer glue coating device.

10. An apparatus for producing a waterproofing sheet, characterized by comprising: The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. The application relates to a multi-layer glue coating device. 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