A building engineering waterproof membrane slitting machine
By designing the shaft and external support components, combined with connecting buckles and pushing components, the problem of laborious operation and damage during the unloading and disassembly process of the waterproof membrane slitting machine is solved, realizing convenient winding and unloading, and improving production efficiency and product qualification rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI MIAORI CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-08-31
- Publication Date
- 2026-06-26
AI Technical Summary
Existing waterproof membrane slitting machines for building construction suffer from problems such as laborious operation, easy damage to membrane edges, and cumbersome disassembly during the winding and unloading processes, which affect production efficiency and product qualification rate.
The design incorporates a rotatable shaft and external support, and the switching of the first and second grooves allows for adjustment of the gap between the film roll and the take-up roller, facilitating unloading. The connection between the buckle and the pusher simplifies the installation and removal of the take-up roller.
It improves the unloading efficiency of waterproof membrane, reduces membrane edge damage, simplifies the replacement process of the take-up roller, and reduces labor costs and time consumption.
Smart Images

Figure CN224410967U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterproof membrane cutting technology, and in particular to a waterproof membrane cutting machine for building engineering. Background Technology
[0002] In the field of building engineering, waterproof membranes, as core functional materials ensuring the waterproof performance of building structures, are widely used in critical areas such as roofs, basements, kitchens and bathrooms, and underground utility tunnels. Their dimensional accuracy and physical integrity directly determine the construction quality and service life of building waterproofing projects. To meet the diverse needs of different building scenarios for the width and length of waterproof membranes, precise slitting and simultaneous winding operations must be performed using a slitting machine before production and construction. Therefore, the slitting accuracy, winding stability, and ease of unloading of the slitting machine have become key factors affecting the production efficiency and product qualification rate of waterproof membranes.
[0003] Currently, most waterproof membrane slitting machines on the market use a fixed outer diameter design for their winding and unloading rollers. During winding, the waterproof membrane adheres tightly to the surface of the roller. After winding, due to the significant friction between the waterproof membrane roll and the roller, manual peeling with tools such as pry bars is required during unloading. This is not only laborious but also prone to causing wrinkles, tears, and other damage to the edges of the waterproof membrane, reducing the product qualification rate. Furthermore, the connection between the winding roller and the drive mechanism is mostly bolted. Each time the winding roller is replaced or the waterproof membrane roll is disassembled, the bolts must be repeatedly removed, which is cumbersome and time-consuming, severely impacting production continuity and increasing labor and time costs. Utility Model Content
[0004] The main purpose of this utility model is to provide a waterproof membrane slitting machine for building engineering, which makes the winding and unloading of waterproof membrane rolls more convenient and faster.
[0005] To achieve the above objectives, this utility model proposes a waterproof membrane slitting machine for building engineering, comprising a base and a winding structure. The base is provided with a support frame, and the support frame is provided with a cutting structure for cutting the waterproof membrane. The winding structure includes a winding roller body, a rotating shaft, and an outer support member. The winding roller body is mounted on the base, and the rotating shaft is rotatably mounted inside the winding roller body. The outer support member is mounted on the winding roller body, with its upper end exposed on the surface of the winding roller body and its bottom located inside the winding roller body and in contact with the rotating shaft. The rotating shaft has a first groove and a second groove. The bottom of the outer support member is engaged in the first groove and can disengage from the first groove and engage in the second groove after the rotating shaft rotates.
[0006] Optionally, the bottom of the outer support member is provided with a protrusion, which is engaged in the first groove. The depth of the second groove is deeper than the depth of the first groove. When the protrusion disengages from the first groove and engages in the second groove, the distance of the outer support member exposed outside the take-up roller body becomes smaller.
[0007] Optionally, the protrusion is provided with a straight column, and the straight column is provided with an elastic element. One end of the elastic element abuts against the protrusion, and the other end abuts against the inner wall of the take-up roller body.
[0008] Optionally, the base is provided with a mounting platform, the mounting platform is provided with a first driving component, and the output end of the first driving component is provided with a first connecting buckle.
[0009] Optionally, a second connecting buckle is provided on one side wall of the take-up roller body, and the second connecting buckle extends into the first connecting buckle so that the first driving member can drive the take-up roller body to rotate.
[0010] Optionally, a movable platform is provided on one side of the mounting platform, a movable groove is provided on the base, the bottom of the movable platform is locked in the movable groove, and the other end of the take-up roller body is rotatably mounted on the movable platform.
[0011] Optionally, the base is provided with a pusher, and the output end of the pusher is provided with a push plate, which is connected to the moving platform.
[0012] Optionally, the cutting structure includes a slider, an output shaft, and a telescopic component. The support frame has a sliding groove, the slider is installed in the sliding groove, the telescopic component is installed on the support frame, and its output end is connected to the slider. The output shaft is rotatably mounted on the slider.
[0013] Optionally, the sidewall of the sliding groove is provided with a limiting groove, and the sidewall of the slider is provided with a limiting block, which is installed in the limiting groove.
[0014] Optionally, the slider is provided with a second driving member, which is connected to the output shaft.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. By setting a rotatable shaft and an external support component that cooperates with the shaft, the external support component can switch between the first groove and the second groove when the shaft rotates, thereby changing the distance of the external support component exposed on the surface of the take-up roller body. During the winding process, the external support component extends to support the waterproof membrane roll; after winding is completed, the external support component retracts, creating a gap between the membrane roll and the take-up roller body, which facilitates unloading and improves work efficiency.
[0017] 2. The take-up roller body is connected to the first drive component via a first connecting clip and a second connecting clip, facilitating the installation and disassembly of the take-up roller body. Simultaneously, the moving platform and pusher allow for position adjustment of the take-up roller body, further simplifying the unloading operation. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the waterproof membrane slitting machine for building engineering of this utility model;
[0020] Figure 2 This is a schematic diagram showing the installation of various parts on the base of the waterproof membrane slitting machine for building engineering according to this utility model;
[0021] Figure 3 This is a structural diagram of the winding structure;
[0022] Figure 4 This is a schematic diagram of a rotating shaft.
[0023] Figure 5 This is a schematic diagram of the structure where the protrusion is secured in the first groove;
[0024] Figure 6 This is a schematic diagram of the structure where the protrusion is secured in the second groove.
[0025] Explanation of icon numbers:
[0026]
[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their 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. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0031] This utility model proposes a waterproof membrane slitting machine 100 for building engineering.
[0032] Please see Figures 1-6 In one embodiment of this utility model, the waterproof membrane slitting machine 100 for building construction includes a base 10 and a winding structure. The base 10 is provided with a support frame 11, and the support frame 11 is provided with a cutting structure 40. The cutting structure 40 is used to cut the waterproof membrane. The winding structure includes a winding roller body 20, a rotating shaft 21, and an outer support member 22. The winding roller body 20 is installed on the base 10. The rotating shaft 21 is rotatably installed inside the winding roller body 20. The outer support member 22 is installed on the winding roller body 20, with its upper end exposed on the surface of the winding roller body 20 and its bottom located inside the winding roller body 20 in contact with the rotating shaft 21. The rotating shaft 21 has a first groove 23 and a second groove 24. The bottom of the outer support member 22 is inserted into the first groove 23 and can be disengaged from the first groove 23 and inserted into the second groove 24 after the rotating shaft 21 rotates.
[0033] In this embodiment, the base 10 is provided with a placement roller 12 for placing the waterproof membrane raw material roll. There are two support frames 11 arranged symmetrically. On both sides of the support frame 11, there are tightening rollers 13 for tightening the waterproof membrane during cutting and winding. It can be understood that the waterproof membrane is released from the placement roller 12, passes over the top of the tightening roller 13 in sequence, and then the end of the waterproof membrane is wound around the winding roller body 20. The height position of the cutting structure 40 is adjusted to cut the waterproof membrane into strips, and finally the winding structure winds it up.
[0034] In one embodiment of this utility model, the bottom of the outer support member 22 is provided with a protrusion 25, which is engaged in the first groove 23. The depth of the second groove 24 is deeper than the depth of the first groove 23. When the protrusion 25 disengages from the first groove 23 and engages in the second groove 24, the distance of the outer support member 22 exposed outside the take-up roller body 20 becomes smaller. A straight post 26 is provided on the protrusion 25, and an elastic member 27 is provided on the straight post 26. One end of the elastic member 27 abuts against the protrusion 25, and the other end abuts against the inner wall of the take-up roller body 20.
[0035] In this embodiment, the take-up roller body 20 is provided with a rotating member 29. The rotating member 29 can drive the rotating shaft 21 to rotate within the take-up roller body 20. The rotating member 29 can be a servo motor, and the rotation angle of the rotating member can be controlled by a PLC circuit to be 90° each time. During winding, the protrusion 25 is engaged in the first groove 23, the outer support member 22 extends out of the surface of the take-up roller body 20, and the waterproof membrane is attached to the surface of the outer support member 22 for winding. After winding is completed, the rotating member 29 is activated, causing the protrusion 25 to engage in the second groove 24. Because the depth of the second groove 24 is deeper than the depth of the first groove 23, and under the elastic force of the elastic member 27, the outer support member 22 retracts, making the outer diameter of the entire take-up roller smaller, so that the waterproof membrane roll can be easily removed. The elastic member 27 can be a spring, but is not limited to this.
[0036] In one embodiment of this utility model, the base 10 is provided with a mounting platform 30, and the mounting platform 30 is provided with a first driving member 31. The output end of the first driving member 31 is provided with a first connecting buckle 32. A second connecting buckle 28 is provided on one side wall of the take-up roller body 20. The second connecting buckle 28 extends into the first connecting buckle 32 so that the first driving member 31 can drive the take-up roller body 20 to rotate. A movable platform 33 is provided on one side of the mounting platform 30. A movable groove 16 is opened on the base 10. The bottom of the movable platform 33 is locked in the movable groove 16, and the other end of the take-up roller body 20 is rotatably mounted on the movable platform 33.
[0037] In this embodiment, the base 10 is provided with a pusher 34, and the output end of the pusher 34 is provided with a push plate 35, which is connected to the moving platform 33. The first drive member 31 can be a geared motor, and the pusher 34 can be an electric push rod. The connection between the first connecting buckle 32 and the second connecting buckle 28 facilitates the installation and removal of the take-up roller body 20. It can be understood that when winding is required, the pusher 34 is activated to extend outward, pushing the moving platform 33 to move along the moving groove 16 toward the mounting platform 30 until the first connecting buckle 32 and the second connecting buckle 28 are fully engaged. At this time, the first drive member 31 can be activated to drive the take-up roller body 20 to wind. After the winding is completed, when it is necessary to disassemble the waterproof membrane roll, first stop the first drive component 31, then start the push component 34 to retract, driving the winding roller body 20 away from the mounting platform 30 until the first connecting buckle 32 disengages from the second connecting buckle 28, and then the waterproof membrane roll on the winding roller body 20 can be disassembled.
[0038] It should be noted that, in order to ensure that the take-up roller body 20 does not detach from the moving platform during the movement, a ring can be welded to the outer surface of the take-up roller body 20, and a groove is provided in the moving platform 33. The ring is locked in the groove, which will not affect the rotation of the take-up roller body 20, and at the same time ensure that the take-up roller body 20 does not detach from the moving platform 33.
[0039] In one embodiment of the present invention, the cutting structure 40 includes a slider 41, an output shaft 42 and a telescopic member 43. A sliding groove 14 is provided on the support frame 11, the slider 41 is installed in the sliding groove 14, the telescopic member 43 is installed on the support frame 11, and its output end is connected to the slider 41. The output shaft 42 is rotatably mounted on the slider 41.
[0040] In this embodiment, a limiting groove 15 is formed on the side wall of the sliding groove 14, and a limiting block 45 is provided on the side wall of the slider 41. The limiting block 45 is installed in the limiting groove 15, so that the slider 41 will not detach from the support frame 11 during movement. A second driving member 44 is provided on the slider 41. The second driving member 44 is connected to the output shaft 42. The second driving member 44 can be a stepper motor, which can directly drive the output shaft 42 to rotate. The surface of the output shaft 42 is provided with a plurality of blades 46, which cut the waterproof membrane during the rotation of the output shaft 42. In actual use, the distance between the blades 46 and the number of blades 46 can be determined according to the width of the waterproof membrane to be cut.
[0041] The telescopic component 43 can also be an electric push rod. By extending and retracting the telescopic component 43, the height position of the slider 41 can be changed, thereby adjusting the position of the blade 46 on the output shaft 42 to meet different cutting and slitting requirements.
[0042] Working principle: The pusher 34 pushes the take-up roller body 20 towards the mounting platform 30, causing the first connecting clip 32 and the second connecting clip 28 to fully engage. Then, the first drive 31 is activated to rotate the take-up roller body 20. During winding, the protrusion 25 of the outer support 22 engages in the first groove 23, and the outer support 22 extends out of the surface of the take-up roller body 20, supporting the waterproof membrane roll. After winding is complete, the first drive 31 is stopped, and then the pusher 34 is activated to retract, moving the take-up roller body 20 away from the mounting platform 30 until the first connecting clip 32 disengages from the second connecting clip 28. The rotating component 29 is then activated, causing the protrusion 25 to engage in the second groove 24. Because the depth of the second groove 24 is greater than the depth of the first groove 23, and under the elastic force of the elastic component 27, the outer support 22 retracts, reducing the outer diameter of the entire take-up roller, allowing the waterproof membrane roll to be easily removed.
[0043] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A waterproof membrane slitting machine for building construction, characterized in that, The device includes a base and a winding structure. The base has a support frame, and the support frame has a cutting structure for cutting the waterproof membrane. The winding structure includes a winding roller body, a rotating shaft, and an outer support member. The winding roller body is mounted on the base. The rotating shaft is rotatably mounted inside the winding roller body. The outer support member is mounted on the winding roller body, with its upper end exposed on the surface of the winding roller body and its bottom located inside the winding roller body and in contact with the rotating shaft. The rotating shaft has a first groove and a second groove. The bottom of the outer support member is engaged in the first groove and can disengage from the first groove and engage in the second groove after the rotating shaft rotates.
2. The waterproof membrane slitting machine for building engineering as described in claim 1, characterized in that: The bottom of the outer support member has a protrusion, which is engaged in the first groove. The depth of the second groove is deeper than the depth of the first groove. When the protrusion disengages from the first groove and engages in the second groove, the distance of the outer support member exposed outside the winding roller body becomes smaller.
3. The waterproof membrane slitting machine for building engineering as described in claim 2, characterized in that: The protrusion is provided with a straight column, and the straight column is provided with an elastic element. One end of the elastic element abuts against the protrusion, and the other end abuts against the inner wall of the take-up roller body.
4. The waterproof membrane slitting machine for building engineering as described in claim 1, characterized in that: The base is provided with a mounting platform, and the mounting platform is provided with a first driving component. The output end of the first driving component is provided with a first connecting buckle.
5. The waterproof membrane slitting machine for building engineering as described in claim 4, characterized in that: A second connecting buckle is provided on one side wall of the take-up roller body. The second connecting buckle extends into the first connecting buckle so that the first driving member can drive the take-up roller body to rotate.
6. The waterproof membrane slitting machine for building engineering as described in claim 4, characterized in that: A movable platform is provided on one side of the mounting platform, and a movable groove is provided on the base. The bottom of the movable platform is locked in the movable groove, and the other end of the take-up roller body is rotatably mounted on the movable platform.
7. The waterproof membrane slitting machine for building engineering as described in claim 6, characterized in that: The base is provided with a pusher, and the output end of the pusher is provided with a push plate, which is connected to the moving platform.
8. The waterproof membrane slitting machine for building engineering as described in claim 1, characterized in that: The cutting structure includes a slider, an output shaft, and a telescopic component. A sliding groove is provided on the support frame, the slider is installed in the sliding groove, the telescopic component is installed on the support frame, and its output end is connected to the slider. The output shaft is rotatably mounted on the slider.
9. The waterproof membrane slitting machine for building engineering as described in claim 8, characterized in that: The sliding groove has a limiting groove on its side wall, and the slider has a limiting block on its side wall, with the limiting block installed in the limiting groove.
10. The waterproof membrane slitting machine for building engineering as described in claim 9, characterized in that: The slider is provided with a second driving component, which is connected to the output shaft.