Waterproof film cutting device

By combining the mechanical cooperation of the cutting platform and cutting mechanism with the pressing and dust extraction mechanism, the problems of membrane wrinkles and high defect rate during the cutting process of waterproof and breathable membranes have been solved, thus improving the cutting quality and environmental cleanliness.

CN224116222UActive Publication Date: 2026-04-14浙江蓝科过滤器材有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江蓝科过滤器材有限公司
Filing Date
2025-03-31
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing waterproof and breathable membrane cutting devices are prone to causing membrane wrinkles, affecting processing quality, resulting in a high defect rate, and the devices have complex structures and high maintenance costs.

Method used

The cutting platform and cutting mechanism, including a drive cylinder, rotating arm, sliding rod and cutting blade holder, combined with a clamping mechanism and a dust collection mechanism, avoid film wrinkles through mechanical cooperation and clamping mechanism, and collect cutting waste.

Benefits of technology

It achieves smooth film edges and a clean working environment during the cutting process, reduces defect rate and maintenance costs, and simplifies the device structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of thin film processing, in particular to a waterproof film cutting device which comprises a cutting platform and a cutting mechanism and is characterized in that a cutting groove is formed in the middle of the cutting platform in a penetrating mode, the cutting mechanism comprises a driving air cylinder, a first rotating arm, a second rotating arm, a sliding rod and a cutting tool apron, and a pressing mechanism is arranged at the upper end of the cutting platform. The pressing mechanism comprises a mounting frame, a pressing air cylinder and a pressing strip, the mounting frame is fixedly arranged at the upper end of the cutting platform, the pressing air cylinder is rotationally arranged at the upper end of the mounting frame, the telescopic end of the pressing air cylinder faces downwards, and the pressing strip is fixedly arranged at the telescopic end of the pressing air cylinder and corresponds to the cutting groove. According to the waterproof breathable film cutting device, the driving air cylinder drives the second rotating arm and the first rotating arm to rotate relative to each other, so that the cutting tool apron moves on the sliding rod, and a waterproof breathable film is cut; and the pressing mechanism is used for pressing, so that the film is prevented from wrinkling in the cutting process, and the flatness of the cutting edge is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of thin film processing technology, and specifically to a waterproof membrane cutting device. Background Technology

[0002] Waterproof and breathable membrane (breathable paper) is a new type of polymer waterproof material. In terms of manufacturing process, the technical requirements for waterproof and breathable membrane are much higher than those for ordinary waterproof materials; at the same time, in terms of quality, waterproof and breathable membrane also has functional characteristics that other waterproof materials do not possess.

[0003] During its production or use, it needs to be cut according to process requirements. When the existing cutting equipment is used, the waterproof and breathable membrane is prone to wrinkles, which affects the processing quality and results in more defective products and a higher defect rate. At the same time, the cutting equipment has a complex structure and high usage and maintenance costs. Utility Model Content

[0004] This invention provides a waterproof membrane cutting device to address the problems of existing technologies.

[0005] The objective of this utility model can be achieved through the following technical solution: A waterproof membrane cutting device, comprising a cutting platform and a cutting mechanism, characterized in that a cutting groove is provided through the middle of the cutting platform, the cutting mechanism includes a drive cylinder, a first rotating arm, a second rotating arm, a sliding rod, and a cutting blade holder, the end of the drive cylinder is rotatably disposed at the lower end of the cutting platform and its telescopic end is rotatably disposed on the first rotating arm, one end of the first rotating arm is rotatably disposed at the lower end of the cutting platform, and the other end is rotatably connected to the second rotating arm, the sliding rod is fixedly disposed at the lower end of the cutting platform and is correspondingly disposed to the cutting groove, the cutting blade holder is slidably disposed on the sliding rod and one end is rotatably connected to the second rotating arm, a pressing mechanism is provided at the upper end of the cutting platform, the pressing mechanism includes a mounting frame, a pressing cylinder, and a pressing strip, the mounting frame is fixedly disposed at the upper end of the cutting platform, the pressing cylinder is fixedly disposed at the upper end of the mounting frame with its telescopic end facing downward, and the pressing strip is fixedly disposed on the telescopic end of the pressing cylinder and is correspondingly disposed to the cutting groove.

[0006] In a further improvement, the clamping strip is provided with an auxiliary clamping mechanism, which includes a connecting rod, a buffer spring and an auxiliary clamping strip. One end of the connecting rod is fixedly disposed with the clamping strip, and the other end has a cavity inside. The auxiliary clamping strip is slidably disposed in the cavity, and the buffer spring is disposed inside the cavity with its two ends abutting against the cavity and the auxiliary clamping strip respectively.

[0007] In a further improvement, the auxiliary pressing mechanism is provided in two sets, which are symmetrically arranged on both sides of the pressing bar.

[0008] In a further improvement, a dust collection mechanism is provided at the lower end of the cutting platform. The dust collection mechanism includes a dust collection trough, a dust collection pipe, a dust collection box, and an exhaust fan. The dust collection trough is fixedly installed at the lower end of the cutting platform with its opening facing the cutting groove. One end of the dust collection pipe is connected to the dust collection trough pipe, and the other end is connected to the dust collection box pipe. The exhaust fan is connected to the dust collection box pipe.

[0009] In a further improvement, a cutting clearance groove is provided at the lower end of the clamping strip, and the cutting clearance groove and the cutting groove are provided correspondingly.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In actual use, when the waterproof and breathable membrane is conveyed to the cutting mechanism by the conveyor, the pressing cylinder drives the pressing strip to descend until the lower surface of the pressing strip abuts against the upper surface of the waterproof and breathable membrane to achieve pressing. Then, the driving cylinder drives the second rotating arm and the first rotating arm to rotate relative to each other, thereby realizing the movement of the cutting knife holder on the sliding rod, thereby realizing the cutting of the waterproof and breathable membrane. The pressing mechanism prevents the membrane from wrinkling during the cutting process and ensures the flatness of the cutting edge.

[0012] 2. The cutting mechanism of this utility model drives the cutting blade holder to cut by mechanical rotation, which has a simple structure and high reliability;

[0013] 3. During the cutting process, the exhaust fan generates suction to collect the waste generated during the cutting process into the dust collection box through the dust collection trough and dust collection pipe, keeping the working environment clean. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0015] Fig. 2 This is a partial structural diagram of the present invention;

[0016] Fig. 3 This is a schematic diagram of the pressing mechanism of this utility model;

[0017] Fig. 4 This is a schematic diagram of the pressing mechanism and auxiliary pressing mechanism of this utility model;

[0018] Fig. 5 This utility model Fig. 4 A magnified view of part A in the middle.

[0019] In the diagram, 1. Cutting platform; 11. Cutting groove; 2. Cutting mechanism; 21. Drive cylinder; 22. First rotating arm; 23. Second rotating arm; 24. Sliding rod; 25. Cutting blade holder; 3. Pressing mechanism; 31. Mounting frame; 32. Pressing cylinder; 33. Pressing strip; 331. Cutting clearance groove; 4. Auxiliary pressing mechanism; 41. Connecting rod; 411. Cavity; 42. Buffer spring; 43. Auxiliary pressing strip; 5. Dust collection mechanism; 51. Dust collection groove; 52. Dust collection pipe; 53. Dust collection box; 54. Exhaust fan. Detailed Implementation

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is a description of the embodiments and appendices. Figs. 1-5 The technical solution of this utility model will be further described below.

[0023] Example 1

[0024] A waterproof membrane cutting device includes a cutting platform 1 and a cutting mechanism 2. The cutting platform 1 has a cutting groove 11 extending through its center. The cutting mechanism 2 includes a drive cylinder 21, a first rotating arm 22, a second rotating arm 23, a sliding rod 24, and a cutting blade holder 25. The end of the drive cylinder 21 is rotatably mounted on the lower end of the cutting platform 1, and its telescopic end is rotatably mounted on the first rotating arm 22. One end of the first rotating arm 22 is rotatably mounted on the lower end of the cutting platform 1, and the other end is rotatably connected to the second rotating arm 23. The sliding rod 24 is fixedly mounted on the cutting platform 1. The lower end of the cutting platform 1 is correspondingly arranged with the cutting groove 11. The cutting knife holder 25 is slidably arranged on the sliding rod 24 and one end is rotatably connected to the second rotating arm 23. The upper end of the cutting platform 1 is provided with a pressing mechanism 3. The pressing mechanism 3 includes a mounting frame 31, a pressing cylinder 32 and a pressing strip 33. The mounting frame 31 is fixedly arranged on the upper end of the cutting platform 1. The pressing cylinder 32 is fixedly arranged on the upper end of the mounting frame 31 with its telescopic end facing downward. The pressing strip 33 is fixedly arranged on the telescopic end of the pressing cylinder 32 and is correspondingly arranged with the cutting groove 11.

[0025] like Figs. 1-5 As shown, in actual use, when the waterproof and breathable membrane is conveyed to the cutting mechanism 2 by the conveyor, the pressing cylinder 32 drives the pressing strip 33 to descend until the lower surface of the pressing strip 33 abuts against the upper surface of the waterproof and breathable membrane to achieve pressing. Then, the driving cylinder 21 drives the second rotating arm 23 and the first rotating arm 22 to rotate relative to each other, thereby realizing the movement of the cutting knife holder 25 on the sliding rod 24, thereby realizing the cutting of the waterproof and breathable membrane. The pressing mechanism 3 is used to press the membrane to avoid wrinkles in the film during the cutting process and ensure the flatness of the cutting edge.

[0026] The cutting mechanism 2 drives the cutting blade holder 25 to cut through mechanical rotation, which has a simple structure and high reliability.

[0027] As a further preferred embodiment, the clamping strip 33 is provided with an auxiliary clamping mechanism 4. The auxiliary clamping mechanism 4 includes a connecting rod 41, a buffer spring 42 and an auxiliary clamping strip 43. One end of the connecting rod 41 is fixedly disposed with the clamping strip 33, and the other end is provided with a cavity 411. The auxiliary clamping strip 43 is slidably disposed in the cavity 411. The buffer spring 42 is disposed in the cavity 411 and its two ends abut against the cavity 411 and the auxiliary clamping strip 43 respectively.

[0028] Specifically, such as Fig. 4 As shown, the auxiliary pressing mechanism 4 provides secondary pressing to prevent wrinkles in the adhesive film and ensure the quality of subsequent cutting.

[0029] As a further preferred embodiment, the auxiliary pressing mechanism 4 is provided in two sets, and the two sets of auxiliary pressing mechanisms 4 are symmetrically arranged on both sides of the pressing strip 33.

[0030] As a further preferred embodiment, a dust collection mechanism 5 is provided at the lower end of the cutting platform 1. The dust collection mechanism 5 includes a dust collection groove 51, a dust collection pipe 52, a dust collection box 53, and an exhaust fan 54. The dust collection groove 51 is fixedly installed at the lower end of the cutting platform 1 with its opening facing the cutting groove 11. One end of the dust collection pipe 52 is connected to the dust collection groove 51, and the other end is connected to the dust collection box 53. The exhaust fan 54 is connected to the dust collection box 53.

[0031] Specifically, such as Fig. 2 Fig. 2 As shown, during the cutting process, the exhaust fan 54 generates suction to collect the waste generated during the cutting process into the dust collection box 53 through the dust collection trough 51 and the dust collection pipe 52, keeping the working environment clean.

[0032] As a further preferred embodiment, the lower end of the clamping strip 33 is provided with a cutting avoidance groove 331, and the cutting avoidance groove 331 and the cutting groove 11 are correspondingly provided.

[0033] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A waterproof membrane cutting device, comprising a cutting platform and a cutting mechanism, characterized in that, The cutting platform has a cutting groove running through its center. The cutting mechanism includes a drive cylinder, a first rotating arm, a second rotating arm, a sliding rod, and a cutting blade holder. The end of the drive cylinder is rotatably mounted on the lower end of the cutting platform, and its telescopic end is rotatably mounted on the first rotating arm. One end of the first rotating arm is rotatably mounted on the lower end of the cutting platform, and the other end is rotatably connected to the second rotating arm. The sliding rod is fixedly mounted on the lower end of the cutting platform and is corresponding to the cutting groove. The cutting blade holder is slidably mounted on the sliding rod, and one end is rotatably connected to the second rotating arm. A pressing mechanism is provided at the upper end of the cutting platform. The pressing mechanism includes a mounting frame, a pressing cylinder, and a pressing strip. The mounting frame is fixedly mounted at the upper end of the cutting platform. The pressing cylinder is fixedly mounted at the upper end of the mounting frame with its telescopic end facing downwards. The pressing strip is fixedly mounted on the telescopic end of the pressing cylinder and is corresponding to the cutting groove.

2. The waterproof membrane cutting device according to claim 1, characterized in that, An auxiliary pressing mechanism is provided on the pressing strip. The auxiliary pressing mechanism includes a connecting rod, a buffer spring, and an auxiliary pressing strip. One end of the connecting rod is fixedly installed with the pressing strip, and the other end has a cavity. The auxiliary pressing strip is slidably installed in the cavity. The buffer spring is installed inside the cavity and its two ends abut against the cavity and the auxiliary pressing strip, respectively.

3. The waterproof membrane cutting device according to claim 2, characterized in that, The auxiliary pressing mechanism is provided in two sets, and the two sets of auxiliary pressing mechanisms are symmetrically arranged on both sides of the pressing bar.

4. The waterproof membrane cutting device according to claim 1, characterized in that, The lower end of the cutting platform is equipped with a dust collection mechanism, which includes a dust collection trough, a dust collection pipe, a dust collection box, and an exhaust fan. The dust collection trough is fixedly installed at the lower end of the cutting platform with its opening facing the cutting groove. One end of the dust collection pipe is connected to the dust collection trough pipe, and the other end is connected to the dust collection box pipe. The exhaust fan is connected to the dust collection box pipe.

5. The waterproof membrane cutting device according to claim 1, characterized in that, The lower end of the clamping strip is provided with a cutting avoidance groove, and the cutting avoidance groove and the cutting groove are provided correspondingly.