Cutting device for ETFE membrane processing
By employing a pressing mechanism and a line-contact pressure application method in the ETFE membrane cutting device, the problems of uneven force distribution in the middle of the membrane material and indentations left by the grippers are solved, achieving higher cutting accuracy and finished product strength, while simplifying the blade replacement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 武汉城建建设工程有限公司
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-26
AI Technical Summary
When cutting ETFE membranes, the existing cutting equipment causes uneven force on the middle of the membrane material, resulting in displacement and affecting the cutting accuracy. At the same time, when the grippers stretch and hold the membrane, they leave indentations on the edge of the membrane material, affecting the strength of the finished product.
Employing a pressing mechanism and drive assembly, it achieves line contact pressure through rollers, uniformly distributing pressure, and cuts through hydraulic push rods and replaceable blades. Combined with an adjustable replacement mechanism, it achieves uniform pressure distribution and rapid blade replacement.
It improves cutting accuracy, eliminates edge indentations on the membrane material, enhances the strength of the finished product, and simplifies the blade replacement process.
Smart Images

Figure CN224407703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting device technology, and in particular to a cutting device for ETFE film processing. Background Technology
[0002] ETFE film is a new type of building material with high light transmittance, weather resistance and lightweight characteristics. The ETFE film processing cutting device is a professional cutting equipment designed for the characteristics of ETFE (ethylene-tetrafluoroethylene copolymer) film material. It is mainly used to cut ETFE film into specific shapes and sizes to meet the processing needs of the construction, packaging and industrial products fields.
[0003] In existing cutting devices, the ETFE film is laid flat on the worktable during cutting. An adjustable pressure plate is adjusted to cooperate with a fixed pressure plate, pressing the edges of the film from both sides. The pressure plate's own weight and friction limit the movement of the film. However, the pressure applied by the pressure plate's own weight is mainly concentrated at the contact edge between the pressure plate and the film, with weaker pressure in the middle area. This causes slight displacement in the middle of the film due to uneven force during cutting, affecting cutting accuracy. Existing technology applies a constant tension to the edges of the film using mechanical grippers before cutting, pre-tensioning the film. When the pressure plate applies pressure, the internal stress generated by the pre-stretching in the middle of the film counteracts the displacement trend during cutting, improving the measured cutting accuracy. However, when the grippers stretch and hold the film, they leave indentations on the edges of the film, affecting the strength of the finished product. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a cutting device for ETFE film processing, which aims to improve the problem in the prior art that the grippers leave indentations on the edge of the film material when stretching and clamping the film material, thus affecting the strength of the finished product.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A cutting device for processing ETFE film includes a worktable. A pressing mechanism is installed at the upper end of the worktable to press the ETFE film and prevent it from shifting. The pressing mechanism includes a C-shaped plate with rollers rotatably mounted on its two opposing inner walls. A C-shaped support frame is installed at the upper rear of the worktable, and a rack is slidably mounted vertically downward in the middle of the support frame. The lower end of the rack is connected to the top of the C-shaped plate.
[0007] A drive assembly is installed on the support frame. The drive assembly includes a motor, which is mounted on the outer wall of one side of the support frame. A connecting rod is located inside the support frame, with one end rotatably mounted on the side wall of the support frame and connected to the output end of the motor. A gear is installed on the other end. The gear meshes with a rack.
[0008] As described above, by starting the motor, the connecting rod and gear rotate, the gear meshes with the rack, and the rack slides up and down along the inner wall of the support frame. The rack drives the C-shaped plate to rise and fall as a whole through the long short plate, thereby adjusting the distance between the roller and the worktable. The ETFE membrane is laid flat on the worktable, and the roller descends with the C-shaped plate to contact the surface of the membrane. The roller achieves line contact pressure by rotating on its own, and the pressure is evenly distributed on the surface of the membrane, which can eliminate the edge indentations of the ETFE membrane.
[0009] Optionally, a support plate is installed on the outer wall of the support frame, and the upper end of the support plate is connected to the bottom of the motor.
[0010] As shown above, the support plate can serve to fix and support the motor.
[0011] Optionally, two support blocks are installed at intervals along the left-right direction at the upper end of the workbench, and two fixed long columns are installed at intervals on the opposite side of the two support blocks. Multiple hydraulic push rods are installed at equal intervals along the left-right direction on the outer side walls of the two fixed long columns, with the hydraulic ends of the hydraulic push rods facing downwards.
[0012] The ETFE film is cut by pressing down the cutting blade with a hydraulic push rod.
[0013] Optionally, a replacement mechanism is installed at the upper center of the workbench. The replacement mechanism includes an elongated hollow block, which is installed between two support blocks and below two fixed long columns. Multiple hollow short blocks are equidistantly installed at the upper end of the elongated hollow block along the front-back direction of the workbench, and a cutting blade is installed at the lower part of the hollow short blocks.
[0014] As shown above, multiple hollow short blocks are arranged equidistantly on the top of the long hollow block, and multiple sets of cutting blades, such as flat blades, toothed blades, and round blades, can be installed at the same time. They can be selected according to the usage requirements and are suitable for different cutting processes without the need for complicated replacement steps.
[0015] Furthermore, a grooved adjustment plate is slidably installed inside the hollow short block, and a cutting blade is installed at the bottom of the grooved adjustment plate.
[0016] Furthermore, support plates are equidistantly installed on the front side of the outer wall of the hollow short block, and fixed end rods are installed on the opposite side of the support plates. A toothed pressing plate is rotatably installed on the outer side wall of the fixed end rod. Multiple springs are equidistantly installed on the front side of the outer wall of the hollow short block, and the other end of the springs is connected to the upper part of the outer side wall of the toothed pressing plate.
[0017] Furthermore, a retaining plate is installed at the lower part of the retaining plate, and a retaining groove adapted to the retaining plate is provided on the groove adjustment plate. The retaining plate can engage with the retaining groove on the groove adjustment plate through the retaining plate.
[0018] Therefore, when cutting is required, manually press the upper part of the toothed pressing plate. The toothed pressing plate rotates around the fixed end rod toward the groove adjustment plate, causing the toothed pressing plate to disengage from the groove of the groove adjustment plate and move out of the through groove of the hollow short block. The groove adjustment plate slides along the inner wall of the hollow short block, and the cutting blade slides down synchronously with the groove adjustment plate and is exposed. Cutting is performed under the action of the hydraulic push rod.
[0019] Preferably, a limiting plate is installed on the top of the groove adjusting plate.
[0020] As shown above, the limiting plate is used to restrict the grooved adjusting plate from sliding out of the hollow short block.
[0021] Optionally, a material rack is installed on the rear side of the workbench, and an ETFE membrane is installed on the material rack.
[0022] Preferably, a long short plate is mounted on the top of the rack.
[0023] As shown above, the elongated short plate can limit the movement distance of the rack. Attached Figure Description
[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0025] Figure 1 This is a front view of the present invention;
[0026] Figure 2 This is a front view of the present invention;
[0027] Figure 3 This is a partial structural exploded view of the present invention;
[0028] Figure 4 This is a schematic diagram of the replacement mechanism of this utility model;
[0029] Figure 5 This is an exploded view of the replacement mechanism of this utility model;
[0030] Figure 6 This is a diagram illustrating the replacement mechanism of this utility model.
[0031] Explanation of markings in the diagram:
[0032] 1. Workbench;
[0033] 2. Pressing mechanism; 201. C-shaped plate; 202. Roller;
[0034] 203. Drive assembly; 2031. Motor; 2032. Support plate; 2033. Connecting rod; 2034. Gear; 2035. Long short plate; 2036. Rack; 2037. Support frame;
[0035] 3. Replacement mechanism; 301. Long hollow block; 302. Hollow short block; 303. Groove adjustment plate; 304. Clamping tooth pressing plate; 305. Limiting plate; 306. Spring; 307. Support short plate; 308. Fixed end rod; 309. Cutting blade;
[0036] 4. Support block;
[0037] 5. Fix the long column;
[0038] 6. Hydraulic push rod;
[0039] 7. Material rack. Detailed Implementation
[0040] 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.
[0041] This utility model provides a cutting device for ETFE film processing, such as... Figure 1 As shown, the device includes a worktable 1, a pressing mechanism 2 installed at the upper rear of the worktable 1, the pressing mechanism 2 is used to press the ETFE membrane to prevent it from shifting, and a changing mechanism 3 installed at the upper middle of the worktable 1, the changing mechanism 3 is used to quickly change different blades.
[0042] like Figure 2 , Figure 3As shown, the pressing mechanism 2 includes a C-shaped plate 201, which is installed at the upper rear of the worktable 1. Rollers 202 are rotatably mounted on the two opposing inner walls of the C-shaped plate 201. A C-shaped support frame 2037 is fixedly installed at the upper rear of the worktable 1. A rack 2036 is vertically slidably mounted downwards in the middle of the support frame 2037. A long short plate 2035 is fixedly installed on the top of the rack 2036, serving as a limiting element. The rack 2036... The lower end is fixedly connected to the top of the C-shaped plate 201; a drive assembly 203 is installed on the support frame 2037, the drive assembly 203 includes a motor 2031, the motor 2031 is installed on the left outer wall of the support frame 2037; a connecting rod 2033 is located inside the support frame 2037, one end is rotatably installed on the left outer wall of the support frame 2037 and connected to the output end of the motor 2031, and the other end is fixedly installed with a gear 203; the gear 2034 meshes with the rack 2036. A support plate 2032 is installed on the left outer wall of the support frame 2037, the upper end of the support plate 2032 is fixedly connected to the bottom of the motor 2031, and the support plate 2032 can serve to fix and support the motor 2031. Specifically, by starting the motor 2031, the connecting rod 2033 and the gear 2034 are driven to rotate. The gear 2034 meshes with the rack 2036, so that the rack 2036 can slide up and down along the support frame 2037. The rack 2036 drives the C-shaped plate 201 to rise and fall as a whole, thereby adjusting the distance between the roller 202 and the worktable 1 to accommodate membrane materials of different thicknesses. The ETFE membrane is laid flat on the worktable 1. The roller 202 descends with the C-shaped plate 201 to contact the surface of the membrane material. The roller 202 achieves line contact pressure by rotating itself. The pressure is evenly distributed on the surface of the membrane material, which can eliminate the edge indentations of the ETFE membrane.
[0043] like Figure 4 As shown, two support blocks 4 are installed at intervals along the left and right direction at the upper end of the worktable 1. Two fixed long columns 5 are installed at intervals on the opposite side of the two support blocks 4. Multiple hydraulic push rods 6 are installed at equal intervals along the left and right direction of the worktable 1 on the outer side wall of the two fixed long columns 5. The hydraulic end of the hydraulic push rod 6 faces downward. The fixed long columns 5 are used to support and fix the hydraulic push rod 6. The hydraulic push rod 6 is used to press down the cutting blade 309 to cut the ETFE film.
[0044] like Figure 4 , Figure 5 and Figure 6As shown, the replacement mechanism 3 includes an elongated hollow block 301, which is installed between two support blocks 4 and below two fixed long columns 5. Multiple hollow short blocks 302 are equidistantly installed on the upper end of the elongated hollow block 301 along the front-rear direction of the worktable 1. Supporting short plates 307 are equidistantly installed on the front side of the outer wall of the hollow short blocks 302. Fixed end rods 308 are installed on the opposite side of the supporting short plates 307. A toothed pressing plate 304 is rotatably installed on the outer wall of the fixed end rods 308. Multiple springs 306 are equidistantly installed on the front side of the outer wall of the hollow short blocks 302. The hollow short blocks 302... An internally sliding groove adjustment plate 303 is installed, with a cutting blade 309 installed at the bottom of the groove adjustment plate 303 and a limit plate 305 installed at the top of the groove adjustment plate 303. The other end of the spring 306 is connected to the upper part of the outer side wall of the toothed pressing plate 304. A locking plate is installed at the lower part of the toothed pressing plate 304. The hollow short block 302 is provided with a through groove that matches the locking plate. At the same time, the groove adjustment plate 303 is provided with several locking slots that match the locking plate. The toothed pressing plate 304 can be engaged with the locking plate by passing through the through groove of the hollow short block 302 and engaging with the locking slots on the groove adjustment plate 303.
[0045] Preferably, multiple hollow short blocks 302 are equidistantly arranged on the top of the long hollow block 301, and multiple sets of cutting blades 309, such as flat blades, toothed blades, and round blades, can be installed at the same time. They can be selected and used according to different cutting process requirements without cumbersome replacement steps.
[0046] When cutting is required, manually press the upper part of the toothed pressing plate 304. The toothed pressing plate 304 rotates around the fixed end rod 308 toward the groove adjustment plate 303, so that the toothed pressing plate 304 disengages from the groove of the groove adjustment plate 303 and moves out of the through groove of the hollow short block 302. The groove adjustment plate 303 slides along the inner wall of the hollow short block 302, and the cutting blade 309 slides down synchronously with the groove adjustment plate 303 and is exposed, and cuts are performed under the action of the hydraulic push rod 6. Furthermore, a limiting plate 305 is installed on the top of the groove adjustment plate 303 to restrict the groove adjustment plate 303 from sliding out of the hollow short block 302. After cutting, the groove adjustment plate 303 is slid upward, and then the lower part of the toothed pressing plate 304 is pressed, so that the locking plate of the toothed pressing plate 304 passes through the through groove of the hollow short block 302 and is locked into the slot of the groove adjustment plate 303, thereby restricting the groove adjustment plate 303 on the hollow short block 302 and preventing the cutting blade 309 from damaging the ETFE film.
[0047] like Figure 1 , Figure 2 and Figure 3As shown, gear 2034 meshes with rack 2036. A material rack 7 is installed on the rear side of workbench 1, and an ETFE membrane is installed on the material rack 7. Specifically, gear 2034 meshes with rack 2036, thereby driving rack 2036 to slide up and down to adjust its height. A long short plate 2035 is installed on the top of rack 2036, which can limit the movement distance of rack 2036. The bottom of rack 2036 is connected to the top of C-shaped plate 201, and the movement of rack 2036 can drive C-shaped plate 201 to move synchronously.
[0048] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The working principle of the cutting device for ETFE film processing described in this utility model is explained as follows:
[0049] The motor 2031 drives the connecting rod 2033 and gear 2034 to rotate. The gear 2034 meshes with the rack 2036, and the rack 2036 slides up and down along the inner wall of the support frame 2037. The rack 2036 drives the C-shaped plate 201 to rise and fall as a whole through the long short plate 2035, so as to adjust the distance between the roller 202 and the worktable 1 to adapt to membrane materials of different thicknesses. The ETFE membrane is laid flat on the worktable 1. The roller 202 descends with the C-shaped plate 201 to contact the surface of the membrane material. The roller 202 achieves line contact pressure by rotating itself, and the pressure is evenly distributed on the surface of the membrane material to eliminate edge indentations. When the upper part of the toothed pressing plate 304 is manually pressed, the toothed pressing plate 304 rotates around the fixed end rod 308 toward the groove adjustment plate 303, causing the toothed pressing plate 304 to disengage from the groove of the groove adjustment plate 303 and move out of the through groove of the hollow short block 302. The groove adjustment plate 303 slides along the inner wall of the hollow short block 302, and the cutting blade 309 slides down synchronously with the groove adjustment plate 303 and is exposed, and cuts under the action of the hydraulic push rod 6.
[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cutting device for processing ETFE film, comprising a worktable, wherein a pressing mechanism is mounted on the upper end of the worktable, the pressing mechanism being used to press the ETFE film to prevent it from shifting, characterized in that, The pressing mechanism includes a C-shaped plate, with rollers rotatably mounted on the two opposing inner walls of the C-shaped plate. A C-shaped support frame is mounted on the upper rear part of the worktable, and a rack is slidably mounted vertically downward in the middle of the support frame. The lower end of the rack is connected to the top of the C-shaped plate. A drive assembly is installed on the support frame. The drive assembly includes a motor, which is mounted on the outer wall of one side of the support frame. A connecting rod is located inside the support frame, with one end rotatably mounted on the side wall of the support frame and connected to the output end of the motor. A gear is installed on the other end. The gear meshes with a rack.
2. The cutting apparatus for ETFE film processing according to claim 1, characterized in that, The outer wall of the support frame is fitted with a support plate, and the upper end of the support plate is connected to the bottom of the motor.
3. The cutting apparatus for ETFE film processing according to claim 1, characterized in that, Two support blocks are installed at intervals along the left-right direction at the upper end of the workbench. Two fixed long columns are installed at intervals on the opposite side of the two support blocks. Multiple hydraulic push rods are installed at equal intervals along the left-right direction on the outer side walls of the two fixed long columns, with the hydraulic ends of the hydraulic push rods facing downwards.
4. The cutting apparatus for ETFE film processing according to claim 3, characterized in that, A replacement mechanism is installed at the upper center of the workbench. The replacement mechanism includes an elongated hollow block, which is installed between two support blocks and below two fixed long columns. Multiple hollow short blocks are equidistantly installed at the upper end of the elongated hollow block along the front-back direction of the workbench. Cutting blades are installed at the lower part of the hollow short blocks.
5. The cutting apparatus for ETFE film processing according to claim 4, characterized in that, A grooved adjustment plate is slidably installed inside the hollow short block, and a cutting blade is installed at the bottom of the grooved adjustment plate.
6. The cutting apparatus for ETFE film processing according to claim 5, characterized in that, Support plates are equidistantly installed on the front side of the outer wall of the hollow short block. Fixed end rods are installed on the opposite side of the support plates. A toothed pressing plate is rotatably installed on the outer side wall of the fixed end rod. Multiple springs are equidistantly installed on the front side of the outer wall of the hollow short block. The other end of the springs is connected to the upper part of the outer side wall of the toothed pressing plate.
7. The cutting apparatus for ETFE film processing according to claim 6, characterized in that, The lower part of the tooth pressing plate is equipped with a card plate, and the groove adjustment plate is provided with a card slot that matches the card plate. The tooth pressing plate can engage with the card slot on the groove adjustment plate through the card plate.
8. The cutting apparatus for ETFE film processing according to claim 5, characterized in that, A limiting plate is installed on the top of the groove adjustment plate.
9. The cutting apparatus for ETFE film processing according to claim 1, characterized in that, A material rack is installed on the rear side of the workbench, and an ETFE membrane is installed on the material rack.
10. The cutting apparatus for ETFE film processing according to claim 1, characterized in that, A long, short plate is mounted on the top of the rack.