Waterproofing membrane extrusion apparatus and waterproofing membrane production system

Abstract

The application relates to the technical field of waterproof roll production, and discloses a waterproof roll extrusion forming equipment and a waterproof roll production system. The waterproof roll extrusion forming equipment comprises a rack, a main compression roller assembly, an auxiliary compression roller assembly and a swing driving device. The main compression roller assembly is used for compressing the waterproof roll and comprises a plurality of main compression rollers arranged in sequence on the rack along a straight line. The auxiliary compression roller assembly is arranged on one side of the main compression roller assembly and comprises an auxiliary compression roller, a rotating shaft and a swing arm. The swing arm is pivotally installed on the rack through the rotating shaft, and the auxiliary compression roller is connected to the swing end of the swing arm. The swing driving device is used for driving the swing arm to swing around the rotating shaft to drive the auxiliary compression roller to compress the waterproof roll on one of the plurality of main compression rollers. The waterproof roll extrusion forming equipment and the waterproof roll production system can realize multi-roller extrusion and can accurately adjust the roller gap and the pressure, so that the dipped material is uniformly distributed on the tire cloth, and the product quality of the waterproof roll is effectively improved.

Description

Technical Field

[0001] This application belongs to the field of waterproof membrane production technology, specifically relating to waterproof membrane extrusion molding equipment and waterproof membrane production system. Background Technology

[0002] In the production of reinforced waterproof membranes, before applying waterproofing adhesives such as asphalt, the reinforcing fabric needs to be impregnated. This involves immersing the reinforcing fabric in a waterproofing adhesive solution, allowing the adhesive to fully penetrate the fabric fibers and form a strong bond. After pre-impregnation, excess adhesive needs to be squeezed out to control the amount of adhesive applied to the fabric and ensure consistent quality of the produced waterproof membrane. Current extrusion processes commonly use relatively fixed rollers to squeeze the reinforcing fabric, extruding excess asphalt and other waterproofing adhesives. However, fluctuations in the initial thickness or density of the adhesive on the reinforcing fabric, along with the elastic deformation characteristics of the impregnated fabric, can lead to excessive or insufficient extrusion pressure in the partial areas of the reinforcing fabric. This reduces the uniformity of the waterproofing adhesive on the reinforcing fabric, severely impacting the quality of the waterproof membrane. Utility Model Content

[0003] In view of at least one of the above-mentioned defects or deficiencies in the prior art, this application provides a waterproof membrane extrusion molding equipment and a waterproof membrane production system, which can realize multi-roller sequential extrusion and can accurately adjust the gap and pressure of the pressure rollers, so that the impregnating material is evenly distributed on the base fabric, thereby improving the product quality of the waterproof membrane.

[0004] To achieve the above objectives, this application provides a waterproof membrane extrusion molding apparatus, comprising:

[0005] frame;

[0006] A main pressure roller assembly for pressing waterproof membrane and comprising a plurality of main pressure rollers arranged sequentially along a straight line on the frame;

[0007] A secondary pressure roller assembly, disposed on one side of the main pressure roller assembly, includes a secondary pressure roller, a rotating shaft, and a swing arm. The swing arm is pivotally mounted to the frame via the rotating shaft, and the secondary pressure roller is connected to the swing end of the swing arm.

[0008] A swing drive device is used to drive the swing arm to swing around the rotating shaft to drive the auxiliary pressure roller to press the waterproof membrane on one of the plurality of main pressure rollers.

[0009] In some embodiments, one of the plurality of main pressure rollers is configured as a roll material input roller for inputting waterproof roll material, and the auxiliary pressure roller is able to press the waterproof roll material on the roll material input roller under the action of the swing arm.

[0010] In some embodiments, the frame is provided with a shaft mounting position, on which the shaft is detachably mounted.

[0011] In some embodiments, there are multiple rotating shaft mounting positions, each corresponding to a multiple main pressure roller. The rotating shaft is selectively mounted on one of the multiple rotating shaft mounting positions, so that the swing arm drives the auxiliary pressure roller to press the waterproof membrane on the corresponding main pressure roller.

[0012] In some embodiments, the two ends of the swing arm are formed as a drive end and the swing end, and the swing arm further includes a pivot portion located between the drive end and the swing end, the pivot shaft is fixedly connected to the pivot portion, and the swing drive device is driven to the drive end.

[0013] In some embodiments, the swing drive device is configured as a first linear telescopic device, the first linear telescopic device including a first piston rod that moves along a linear telescopic direction, the outer end of the first piston rod being hinged to the swing arm.

[0014] In some embodiments, the plurality of main pressure rollers include two fixed pressure rollers and a movable pressure roller arranged sequentially in a straight line, and the waterproof membrane extrusion molding equipment further includes an extrusion drive device for driving the movable pressure roller to move to press the fixed pressure rollers.

[0015] In some embodiments, the extrusion drive device is configured as a second linear telescopic device, the second linear telescopic device including a second piston rod that moves along the linear telescopic direction, the outer end of the second piston rod being connected to the movable pressure roller.

[0016] In some embodiments, the first linear telescopic device or the second linear telescopic device is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0017] A second aspect of this application provides a waterproof membrane production system, which includes the aforementioned waterproof membrane extrusion molding equipment.

[0018] Through the above technical solution, when using the waterproof membrane extrusion molding equipment of this application for the extrusion process of waterproof membrane, the impregnated waterproof membrane can be fed into the main pressure roller assembly. Simultaneously, a swing drive device drives the swing arm to swing, causing the auxiliary pressure roller to press against one of the main pressure rollers. This allows multiple main and auxiliary pressure rollers to work together, performing multiple extrusions on the waterproof membrane, resulting in a uniform distribution of the impregnated material on the membrane and effectively improving the product quality. Furthermore, by adjusting the swing angle of the swing arm through the swing drive device, the gap between the auxiliary pressure roller and the corresponding main pressure roller can be adjusted, helping to optimize the control of the extrusion amount, improve the operational precision of the extrusion, and ensure that the amount of prepreg coating on the waterproof membrane meets the requirements.

[0019] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of a waterproof membrane extrusion molding equipment according to a specific embodiment of this application;

[0022] Figure 2 for Figure 1 A schematic diagram of the other side of the waterproof membrane extrusion molding equipment.

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Frame 2. Main pressure roller

[0025] 3 auxiliary pressure rollers 4 rotating shafts

[0026] 5. Swing arm; 6. Swing drive device

[0027] 7. Extrusion drive unit 201. Coil input roller

[0028] 202 Fixed pressure roller; 203 Movable pressure roller

[0029] 601 First piston rod; 602 First cylinder section

[0030] 701 Second piston rod; 702 Second cylinder section

[0031] A waterproof membrane Detailed Implementation

[0032] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0033] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0034] like Figure 1 and Figure 2As shown, the first exemplary embodiment of this application provides a waterproof membrane extrusion molding equipment. The equipment mainly includes a frame 1, a main pressure roller assembly, a secondary pressure roller assembly, and a swing drive device 6. The main pressure roller assembly includes multiple main pressure rollers 2 arranged sequentially along a straight line on the frame 1. The multiple main pressure rollers 2 are arranged parallel to each other, and each pair of main pressure rollers 2 can press the waterproof membrane A passing through their gaps, thereby achieving multiple extrusions. The secondary pressure roller assembly is located on one side of the main pressure roller assembly and includes a secondary pressure roller 3, a rotating shaft 4, and a swing arm 5. The swing arm 5 is pivotally mounted to the frame 1 via the rotating shaft 4, and the secondary pressure roller 3 is connected to the swing end of the swing arm 5, swinging with the swing arm 5. The swing drive device 6 drives the swing arm 5 to swing around the rotating shaft 4, causing the secondary pressure roller 3 to move closer to one of the multiple main pressure rollers 2 until it presses the waterproof membrane on that main pressure roller 2, thereby adding an extra extrusion process to the waterproof membrane passing through that main pressure roller 2.

[0035] Therefore, when performing the extrusion process on waterproof membrane A using the waterproof membrane extrusion molding equipment of this exemplary embodiment, the impregnated waterproof membrane can be fed into the main pressure roller assembly, allowing it to pass through multiple main pressure rollers 2 for extrusion. Simultaneously, the swing arm 5 is driven to swing by the swing drive device 6, thereby causing the auxiliary pressure roller 3 to press against one of the main pressure rollers 2. This allows the multiple main pressure rollers 2 and the auxiliary pressure roller 3 to work together to extrude the waterproof membrane multiple times, resulting in a uniform distribution of the impregnating material on the membrane surface, effectively improving the product quality of the waterproof membrane. Furthermore, by adjusting the swing angle of the swing arm 5 through the swing drive device 6, the gap between the auxiliary pressure roller 3 and the corresponding main pressure roller 2 can be adjusted, which helps to optimize the control of the extrusion amount, improve the operational accuracy of the extrusion, and ensure that the amount of prepreg coating on the waterproof membrane meets the requirements.

[0036] It should be noted that this application does not limit the arrangement direction of the multiple main pressure rollers 2 or the conveying direction of the waterproof membrane, so as to... Figure 1 In the illustrated embodiment, multiple main pressure rollers 2 can be arranged vertically. The waterproof membrane to be compressed can be input to and output from the multiple main pressure rollers 2 as shown by the arrows in the figure; that is, it inputs from the bottom main pressure roller 2, then passes over the middle main pressure roller 2, and finally outputs from the top main pressure roller 2. It is understood that the compressed waterproof membrane will drip excess asphalt or other impregnating material, and the amount of dripping impregnating material decreases with each compression. Therefore, a relatively large amount of impregnating material will drip during the initial compression of the waterproof membrane. To address this, passing the waterproof membrane through multiple main pressure rollers 2 from bottom to top allows the impregnating material dripping during the initial compression to fall onto the ground or into a collection container, preventing a large amount of impregnating material from repeatedly dripping onto the waterproof membrane or equipment components. Of course, in actual operation, depending on the actual conveying requirements of the production line, it is not ruled out that the waterproof membrane may be conveyed by passing it through multiple main pressure rollers 2 from top to bottom.

[0037] Furthermore, this application does not limit which main pressure roller 2 the auxiliary pressure roller 3 presses against. Optionally, one of the multiple main pressure rollers 2 can be formed as a roll material input roller 201 for inputting the waterproof roll material. In other words, the roll material input roller 201 is the main pressure roller 2 through which the waterproof roll material initially passes. At this time, driven by the swing arm 5, the auxiliary pressure roller 3 can press the waterproof roll material on the roll material input roller 201. (Refer to...) Figure 1 In the illustrated embodiment, the lowermost main pressure roller 2 is formed as a roll material input roller 201. Driven by the swing arm 5, the auxiliary pressure roller 3 can press the roll material input roller 201, allowing the waterproof roll material that passes over the roll material input roller 201 to be squeezed by the auxiliary pressure roller 3. Then, the waterproof roll material passes through the gap between another main pressure roller 2 adjacent to the roll material input roller 201 and is subjected to secondary compression, improving the uniformity of the impregnation. Crucially, the auxiliary pressure roller 3 squeezes the waterproof roll material on the roll material input roller 201, and the excess impregnation material squeezed out can drip onto the ground or into a pre-set collection container, avoiding contamination of the waterproof roll material to be squeezed or equipment components. If the auxiliary pressure roller 3 squeezes the main pressure roller 2 located downstream of the roll material input roller 201, the impregnation material may drip into the upstream waterproof roll material, resulting in poor extrusion of the impregnation material and affecting the uniformity of subsequent coating of the waterproof roll material.

[0038] In an optional or preferred embodiment, the frame 1 is provided with a shaft mounting position, on which the shaft 4 is detachably mounted. Specifically, refer to... Figure 1 The rotating shaft 4 can be installed using a bearing support. For example, a screw hole is pre-drilled at the shaft mounting position, and the bearing support is installed on the shaft mounting position using bolts. The rotating shaft 4 and the bearing support can use an interference fit or a transition fit to ensure that there is no slippage between the rotating shaft 4 and the inner ring of the bearing when rotating. Therefore, when it is necessary to disassemble or assemble the auxiliary pressure roller assembly, only the bearing support needs to be disassembled or assembled, improving the flexibility of equipment use.

[0039] Furthermore, in order to enable the auxiliary pressure roller 3 to press any one of the main pressure rollers 2, multiple rotating shaft mounting positions can be provided, with each rotating shaft mounting position corresponding to one of the main pressure rollers 2. This allows the rotating shaft 4 to be selectively installed on multiple rotating shaft mounting positions. By driving the swing arm 5 to swing, the swing arm 5 can drive the auxiliary pressure roller 3 to press the waterproof membrane on the corresponding main pressure roller 2.

[0040] In an optional or preferred embodiment, the two ends of the swing arm 5 are formed as a driving end and a swinging end. The swing arm 5 also includes a pivot portion located between the driving end and the swinging end. The rotating shaft 4 is fixedly connected to the pivot portion, and the swing driving device 6 is driven to the driving end. Thus, when the swing driving device 6 drives the driving end of the swing arm 5 to swing in the forward direction, the swing arm 5 can rotate around the rotating shaft 4. At this time, the swinging end of the swing arm 5 swings in the reverse direction, thereby driving the auxiliary pressure roller 3 to move until it presses the corresponding main pressure roller 2.

[0041] In the above embodiments, the driving end and the swing end are located on both sides of the pivot. In other embodiments, the connection position between the swing driving device 6 and the swing arm 5 can also be set on the same side as the swing end, so that when the swing driving device 6 drives the swing arm 5 to swing, the swing direction of the auxiliary pressure roller 3 is consistent with the driving direction of the swing driving device 6. This application does not limit the driving method of the swing driving device 6, as long as it can drive the auxiliary pressure roller 3 to swing relative to the corresponding main pressure roller 2.

[0042] In an optional or preferred embodiment, refer to Figure 1 The swing drive device 6 is formed as a first linear telescopic device, which includes a first piston rod 601 that moves along the linear telescopic direction. Specifically, the first piston rod 601 is telescopically inserted into the first cylinder section 602, wherein the first cylinder section 602 is hinged to the frame 1, and the outer end of the first piston rod 601 is hinged to the swing arm 5. Thus, the linear movement of the first piston rod 601 driven by the first cylinder section 602 is converted into the rotational motion of the swing arm 5. By controlling the telescopic amount of the first piston rod 601, the swing angle of the swing arm 5 can be precisely controlled, thereby accurately controlling the gap between the auxiliary pressure roller 3 and the corresponding main pressure roller 2, adapting to different extrusion requirements, and ensuring that the coating amount of the impregnating material meets the requirements.

[0043] In an optional or preferred embodiment, refer to Figure 1 The multiple main pressure rollers 2 include two fixed pressure rollers 202 and one movable pressure roller 203 arranged sequentially in a straight line. The waterproof membrane extrusion molding equipment also includes an extrusion drive device 7 for driving the movable pressure roller 203 to move and press against the fixed pressure roller 202. In other words, by driving the movable pressure roller 203 to move through the extrusion drive device 7, the distance between the movable pressure roller 203 and the aligned fixed pressure roller 202 can be effectively adjusted, thereby adjusting the pressing force between the main pressure rollers 2 and further improving the flexibility and adjustability of the equipment. In addition, the extrusion drive device 7 and the swing drive device 6 can operate independently of each other. While the swing drive device 6 drives the swing arm 5 to swing, the extrusion drive device 7 can drive the movable pressure roller 203 to press against the fixed pressure roller 202, thereby achieving multiple extrusions. Of course, it is also possible to choose to control one of the extrusion drive device 7 and the swing drive device 6 to operate separately, or both can be kept inactive. In this case, only the two fixed pressure rollers 202 are used to extrude the waterproof membrane, saving energy and extrusion time.

[0044] like Figure 1As shown, the extrusion drive device 7 can be configured as a second linear telescopic device. The second linear telescopic device includes a second piston rod 701 that moves along the linear telescopic direction. The second piston rod 701 is telescopically inserted into a second cylinder portion 702, wherein the second cylinder portion 702 is fixed to the frame 1, and the outer end of the second piston rod 701 is connected to the movable pressure roller 203. Thus, by driving the second piston rod 701 to move linearly through the second cylinder portion 702, the movable pressure roller 203 is moved closer to or further away from the aligned fixed pressure roller 202, achieving precise control of the extrusion amount of the movable pressure roller 203.

[0045] In the above embodiments, hydraulic cylinders, pneumatic cylinders, or electric push rods can be selected as the first linear telescopic device or the second linear telescopic device according to actual usage requirements. This application does not limit this.

[0046] A second exemplary embodiment of this application provides a waterproof membrane production system, which includes the aforementioned waterproof membrane extrusion molding equipment. Obviously, the waterproof membrane production system of this exemplary embodiment possesses all the technical effects brought about by the aforementioned waterproof membrane extrusion molding equipment, and therefore will not be described in detail here.

[0047] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An apparatus for extrusion of a waterproofing membrane, characterized in that, The waterproof roll material extrusion forming equipment comprises a rack (1), a main roller assembly for compacting waterproof roll material and comprising a plurality of main rollers (2) arranged in line on the rack (1), a sub-roller assembly arranged on one side of the main roller assembly and comprising a sub-roller (3), a rotating shaft (4) and a swing arm (5), the swing arm (5) being pivotally installed on the rack (1) through the rotating shaft (4), the sub-roller (3) being connected to a swing end of the swing arm (5), and a swing driving device (6) for driving the swing arm (5) to swing around the rotating shaft (4) to drive the sub-roller (3) to compact waterproof roll material on one of the main rollers (2). One of the plurality of main rollers (2) is formed as a roll material input roller (201) for inputting waterproof roll material, and the sub-roller (3) can compact waterproof roll material on the roll material input roller (201) under the driving of the swing arm (5). The rack (1) is provided with a rotating shaft mounting position, and the rotating shaft (4) is detachably mounted on the rotating shaft mounting position. The rotating shaft mounting position is provided with a plurality of rotating shaft mounting positions corresponding to the plurality of main rollers (2), and the rotating shaft (4) is selectively mounted on the plurality of rotating shaft mounting positions, so that the swing arm (5) can drive the sub-roller (3) to compact waterproof roll material on the corresponding main roller (2). Both ends of the swing arm (5) are formed as a driving end and the swing end, and the swing arm (5) further comprises a pivot portion between the driving end and the swing end, the rotating shaft (4) is fixedly connected to the pivot portion, and the swing driving device (6) is drivingly connected to the driving end.

2. The waterproofing membrane extrusion apparatus of claim 1, wherein, The swing driving device (6) is formed as a first linear extension device, the first linear extension device comprises a first piston rod (601) moving in a linear extension direction, and an outer end of the first piston rod (601) is hinged to the swing arm (5).

3. The waterproofing membrane extrusion apparatus of claim 1, wherein, The plurality of main rollers (2) comprises two fixed rollers (202) and one movable roller (203) arranged in line, and the waterproof roll material extrusion forming equipment further comprises an extrusion driving device (7) for driving the movable roller (203) to move to compact the fixed roller (202).

4. The waterproofing membrane extrusion apparatus of claim 3, wherein, The extrusion driving device (7) is formed as a second linear extension device, the second linear extension device comprises a second piston rod (701) moving in a linear extension direction, and an outer end of the second piston rod (701) is connected to the movable roller (203).

5. The waterproofing membrane extrusion apparatus of claim 1, wherein, The first linear extension device or the second linear extension device is a hydraulic cylinder, an air cylinder or an electric push rod.

6. The waterproofing membrane extrusion apparatus of claim 1, wherein, The waterproof roll material production system comprises the waterproof roll material extrusion forming equipment according to any one of claims 1 to 9.

7. The waterproofing membrane extrusion apparatus of claim 6, wherein, ​ 8. The waterproofing membrane extrusion apparatus of claim 7, wherein, ​ 9. The waterproofing membrane extrusion apparatus of claim 8, wherein, ​ 10. A waterproofing membrane production system characterized by, ​

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