Finished film edge cutting device

Abstract

The utility model discloses a finished product film edge material cutting device, including cutting frame, the front end of cutting frame is assembled with the winding frame, the inside assembly of winding frame has the film winding roller, the rear end both sides of cutting frame all assemble film frame a and film frame b, assemble film roller a on film frame a, assemble film roller b on film frame b, the upper end center of cutting frame is assembled with cutting assembly, and cutting assembly includes the fixed frame of installation in cutting frame upper end both sides, five adjusting tubes are sleeved outside the supporting rod in this device, cooperate the design of positioning screw rod, positioning screw groove and a plurality of positioning holes, can realize the flexible movement of cutting blade in horizontal direction and the fine adjustment of height direction, simultaneously, adjusting tube can slide along the supporting rod, and the cooperation of bolt main part and fixed screw groove can quickly adjust the interval between adjusting tubes, and then realize the demand adaptation of different width, different cutting position.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, specifically a cutting device for edge material of finished film. Background Technology

[0002] In the field of film production and subsequent processing, edge trimming of finished films is a key process to ensure the dimensional accuracy, appearance quality, and adaptability of film products for subsequent processing. With the increasing diversified demands for film products from industries such as packaging, electronics, and building materials, the market has placed higher requirements on the precision, efficiency, and adaptability of film trimming. Traditional film edge trimming equipment has gradually revealed many technical defects and is unable to meet the needs of modern production. Traditional film edge cutting devices mostly use a fixed blade structure. Once the blade position is installed and debugged, it cannot be flexibly adjusted according to the cutting requirements of different film specifications. When it is necessary to switch to film products with different widths and different cutting requirements, the machine must be stopped to disassemble and reinstall the blade. This is not only cumbersome and time-consuming, which seriously affects the continuity of production, but also easily leads to increased blade positioning errors due to repeated installation, resulting in problems such as uneven cutting edges and insufficient dimensional accuracy, thus increasing the product defect rate. Utility Model Content

[0003] The purpose of this invention is to provide a finished film edge cutting device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a finished film edge cutting device, comprising a cutting frame, a winding frame mounted at the front end of the cutting frame, and a film winding roller mounted inside the winding frame; film frames a and b are mounted on the upper and lower sides of the rear end of the cutting frame, film roller a is mounted on film frame a, and film roller b is mounted on film frame b; a cutting assembly is mounted at the upper center of the cutting frame, the cutting assembly comprising fixed frames mounted on both sides of the upper end of the cutting frame, fixed seats mounted on the upper ends of the two fixed frames, a support rod installed between the two fixed seats, five adjusting cylinders fitted on the outside of the support rod, and cutting blades mounted on the side walls of the adjusting cylinders.

[0005] As a preferred embodiment of the finished film edge cutting device of this utility model, the lower end of the side wall of the adjusting cylinder is provided with a positioning screw groove, the center of the side wall of the cutting blade is provided with an adjusting slide, the interior of the adjusting slide is provided with three positioning holes, and positioning screws are screwed into the positioning holes and the positioning screw groove.

[0006] As a preferred embodiment of the finished film edge cutting device of this utility model, the top end of the adjusting cylinder is provided with a fixing screw hole, and the outer wall of the support rod is provided with fixing screw grooves evenly spaced. The fixing screw hole and fixing screw groove are screwed with bolt bodies.

[0007] As a preferred embodiment of the finished film edge cutting device of this utility model, the bottom end of the bolt body is provided with a circular groove, and a bolt rod is installed at the bottom end of the circular groove. The bolt rod is screwed into the fixing screw hole and the fixing screw groove.

[0008] As a preferred embodiment of the finished film edge cutting device of this utility model, a fixing ring is installed on the upper outer end of the bolt rod, and an annular pressure plate, a spring and an annular rubber sheet are fitted on the circumferential surface of the bolt rod.

[0009] As a preferred embodiment of the finished film edge cutting device of this utility model, an extrusion block is installed at the upper edge of the annular rubber sheet, and the outer wall of the bolt body is provided with an arc surface, and the surface of the arc surface is provided with anti-slip texture.

[0010] As a preferred embodiment of the finished film edge cutting device of this utility model, a drive motor is installed on one side of the rear end of the cutting frame, a transmission sprocket a is installed on the rotating shaft of the film roller a, a transmission sprocket b is installed on the rotating shaft of the film roller b, a transmission sprocket c is assembled on the drive end of the drive motor, and a transmission chain is fitted between the transmission sprocket a, the transmission sprocket b and the transmission sprocket c.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the design of this finished film edge cutting device is reasonable; This device features five adjusting cylinders mounted on the outside of the support rod. The cutting blade is connected to the adjusting cylinders via adjusting tracks. Combined with the design of positioning screws, positioning slots, and multiple positioning holes, it allows for flexible horizontal movement of the cutting blade and fine-tuning in the vertical direction. Simultaneously, the adjusting cylinders can slide along the support rod, and the cooperation between the bolt body and the fixing slot allows for quick adjustment of the spacing between the adjusting cylinders, thus adapting to different widths and cutting positions. Compared to traditional fixed blade structures, this design allows for adjustment without disassembling the blade, significantly reducing product changeover time. It can meet the edge cutting needs of various specifications of finished films, significantly improving the equipment's versatility. Attached Figure Description

[0012] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the cutting component of this utility model; Figure 3 This is a schematic diagram of the bolt body of this utility model; Figure 4 This is a schematic diagram of part A of the present utility model.

[0013] In the diagram: 1. Cutting frame; 2. Rewinding frame; 3. Rewinding roller; 4. Drive sprocket a; 5. Film frame b; 6. Film roller a; 7. Film roller b; 8. Film frame a; 9. Drive sprocket b; 10. Drive motor; 12. Drive chain; 13. Cutting assembly; 14. Fixing frame; 15. Drive sprocket b; 16. Fixing base; 17. Support rod; 18. Adjusting cylinder; 19. Bolt body. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-4 This utility model provides a technical solution: In this technical solution, a finished film edge cutting device includes a cutting frame 1. A winding frame 2 is assembled at the front end of the cutting frame 1, and a film winding roller 3 is assembled inside the winding frame 2. Film frames a8 and b5 are assembled on the upper and lower sides of the rear end of the cutting frame 1. Film roller a6 is assembled on film frame a8, and film roller b7 is assembled on film frame b5. A cutting assembly 13 is assembled at the upper center of the cutting frame 1. The cutting assembly 13 includes fixed frames 14 installed on both sides of the upper end of the cutting frame 1. Fixed seats 16 are assembled at the upper ends of the two fixed frames 14. A support rod 17 is installed between the two fixed seats 16. Five adjusting cylinders 18 are fitted on the outside of the support rod 17. Cutting blades 20 are assembled on the side walls of the adjusting cylinders 18.

[0016] The cutting frame 1 is welded from Q235 steel plate, with overall dimensions of 2200mm × 800mm × 1500mm (length × width × height). Four casters (150mm diameter) with brakes are welded to the bottom for easy movement and fixation. The winding frame 2 is fixed to the front end of the cutting frame 1 with M12 bolts. Bearing seats (model UCP205) are installed inside its frame. The film winding roller 3 is mounted in the bearing seats at both ends via bearings (model 6205). The winding roller 3 has a diameter of 150mm and a length of 1200mm, and its surface is covered with a 3mm thick silicone layer to prevent slippage during film winding. Film frames a8 and b5 are L-shaped steel plate structures (10mm thick), fixed to the upper and lower rear ends of the cutting frame 1 with expansion bolts, spaced 500mm apart. Film rollers a6 and b7 have the same structure, with a diameter of 80mm. The length is 1200mm, the material is 45# steel, and the surface is chrome-plated (plating thickness 0.05mm); the fixing frame 14 is a square steel tube (specifications 50mm×50mm×3mm), 600mm high, and is bolted to the cutting frame 1 via a flange; the fixing base 16 is made of cast iron (HT200), and is fixed to the top of the fixing frame 14 with M10 bolts; the support rod 17 is a 45# steel optical shaft, 30mm in diameter and 1200mm in length, and is fixed to the fixing base 16 at both ends with set screws (model M8); the adjusting cylinder 18 has an inner diameter of 30.5mm, an outer diameter of 45mm, and a length of 80mm, and is made of aluminum alloy (6061), with a smooth inner wall (roughness Ra1.6); the cutting blade 20 is made of high-speed steel (W18Cr4V), with a cutting edge angle of 30°, a blade length of 100mm, and a thickness of 2mm.

[0017] In some technical solutions, a positioning screw groove is provided at the lower end of the side wall of the adjusting cylinder 18, and an adjusting slide 21 is provided at the center of the side wall of the cutting blade 20. Three positioning holes 22 are provided inside the adjusting slide 21, and positioning screws 23 are screwed into the positioning holes 22 and the positioning screw groove.

[0018] The positioning screw groove is an M8 threaded hole with a depth of 20mm, located 10mm from the bottom of the lower end of the side wall of the adjusting cylinder 18; the adjusting slide 21 is a rectangular through groove with dimensions of 60mm × 8mm (length × width) and a groove wall roughness of Ra3.2; the three positioning holes 22 are all smooth holes with a diameter of 8.5mm, evenly distributed along the length of the adjusting slide 21 with a hole spacing of 20mm; the positioning screw 23 is an internal hexagonal head bolt (model M8×30) made of 304 stainless steel, with an anti-loosening nut (model M8) fitted at the end of the screw, and a flat washer (diameter 16mm, thickness 2mm) is placed between the bolt head and the cutting blade 20.

[0019] In some technical solutions, the top of the adjusting cylinder 18 is provided with a fixing screw hole, and the outer wall of the support rod 17 is provided with fixing screw grooves evenly spaced. The fixing screw hole and fixing screw groove are screwed with bolt bodies 19.

[0020] The fixing screw hole is an M10 threaded hole with a depth of 25mm, located at the center of the top of the adjusting cylinder 18; the fixing screw groove is an M10 thread, evenly distributed along the outer wall of the support rod 17 with a pitch of 15mm and a thread length of 30mm; the bolt body 19 is an external hex bolt (model M10×40), made of 45 steel, with a blackened surface, and a bolt strength grade of 8.8.

[0021] In some technical solutions, a circular groove 191 is provided at the bottom end of the bolt body 19, and a bolt rod 193 is installed at the bottom end of the circular groove 191. The bolt rod 193 is screwed into the fixing screw hole and the fixing screw groove.

[0022] The circular groove 191 is a cylindrical groove with a diameter of 12mm and a depth of 15mm, and is located at the center of the bottom end of the bolt body 19. The bolt shank 193 is an integral structure with the bolt body 19, with a diameter of 10mm and a length of 30mm. It is machined with M10 threads with a thread accuracy of 6g. The transition between the bolt shank 193 and the circular groove 191 is treated with a rounded corner (radius of 2mm).

[0023] In some technical solutions, a retaining ring 196 is installed on the upper outer end of the bolt rod 193, and an annular pressure plate 195, a spring 197 and an annular rubber sheet 192 are fitted on the circumferential surface of the bolt rod 193.

[0024] The retaining ring 196 is a 304 stainless steel ring with an inner diameter of 10.5mm, an outer diameter of 20mm, and a thickness of 3mm. It is installed on the upper end of the bolt rod 193 5mm from the top by interference fit. The annular pressure plate 195 is made of spring steel (65Mn) with an inner diameter of 10.5mm, an outer diameter of 25mm, and a thickness of 1.5mm. It is galvanized. The spring 197 is a cylindrical helical compression spring with a wire diameter of 2mm, an outer diameter of 18mm, a free length of 30mm, a stiffness coefficient of 5N / mm, and a material of 60Si2Mn. The annular rubber sheet 192 is made of nitrile rubber with an inner diameter of 10.5mm, an outer diameter of 25mm, a thickness of 5mm, and a Shore hardness of 60°.

[0025] In some technical solutions, an extrusion block 194 is installed at the upper edge of the annular rubber sheet 192, and an arc surface 198 is provided on the outer wall of the bolt body 19, and the surface of the arc surface 198 is provided with anti-slip texture.

[0026] The extrusion block 194 is made of polyurethane and has a fan-shaped structure (central angle 30°). There are 6 of them, which are evenly distributed along the upper edge of the annular rubber sheet 192. Each extrusion block 194 is 5mm high and 8mm wide. The arc surface 198 is located in the middle of the bolt body 19, with an arc radius of 15mm and a length of 30mm. The anti-slip texture is a diamond mesh with a texture depth of 0.5mm and a mesh spacing of 2mm. It is processed by rolling process.

[0027] In some technical solutions, a drive motor 10 is installed on one side of the rear end of the cutting frame 1, a drive sprocket a4 is installed on the shaft of the film roller a6, a drive sprocket b9 is installed on the shaft of the film roller b7, a drive sprocket c15 is assembled on the drive end of the drive motor 10, and a drive chain 12 is fitted between the drive sprocket a4, the drive sprocket b9 and the drive sprocket c15.

[0028] The drive motor 10 is a three-phase asynchronous motor (model Y100L-2), with a power of 3kW and a rated speed of 2900r / min. It is fixed to the rear end of the cutting frame 1 via a motor bracket (welded angle steel). The motor output shaft is connected to the transmission shaft via a coupling (model HL2). The transmission sprockets a4, b9, and c15 are all roller chain sprockets (model 08A), with 20, 20, and 10 teeth respectively, a pitch of 12.7mm, and are made of 45# steel with surface hardening treatment (hardness HRC40-45). The transmission chain 12 is a roller chain (model 08A-1), with 50 links and a chain length of 635mm. It is equipped with a chain tensioner (model XT-08A). The shafts of the film rollers a6 and b7 have a diameter of 40mm and are connected to the sprockets via keys (key model 12×8×50).

[0029] Work process: I. Equipment Commissioning Phase Before officially starting the equipment, preliminary debugging work needs to be completed according to the specifications of the finished film to be cut. First, loosen the bolt body 19 at the top of the adjusting cylinder 18, slide the adjusting cylinder 18 along the axis of the support rod 17, and adjust the five adjusting cylinders 18 to the preset cutting spacing according to the scale of the fixing screw groove on the outer wall of the support rod 17 (accuracy 0.5mm). Then tighten the bolt body 19. Through the screw connection between the bolt rod 193 and the fixing screw groove, combined with the pre-tightening force generated by the spring 197 pushing the annular rubber sheet 192, the adjusting cylinder 18 is reliably fixed. If it is necessary to fine-tune the height or horizontal position of the cutting blade 20, the positioning screw 23 can be loosened, the cutting blade 20 can be moved along the adjusting slide 21, the appropriate positioning hole 22 can be selected, and the positioning screw 23 can be retightened. Flat washers and anti-loosening nuts are used to ensure that the blade is firmly fixed. Simultaneously, the appropriate film conveying tension is set using the torque adjustment knobs at one end of film rollers a6 and b7; the variable frequency speed controller (model VFD037M43B) of drive motor 10 is operated to preset the film conveying speed (normal range 5-20m / min). After debugging, the transparent acrylic safety guard on the outside of the cutting assembly 13 is closed to ensure operational safety.

[0030] II. Film feeding and film threading stage The finished film roll to be cut is mounted on the film roller b7 of the film frame b5. The free end of the film is pulled and sequentially passed around the film roller a6 of the film frame a8 (the chrome-plated surface reduces film wear). After being guided by the guide roller (50mm in diameter) between the cutting frame 1 and the winding frame 2, the film is laid flat on the conveying plane below the cutting assembly 13. At this time, ensure that the edge of the film is aligned with the cutting edge of the cutting blade 20. Finally, the free end of the film is fixed to the surface of the film winding roller 3 (the silicone layer increases friction to prevent slippage). During the film threading process, the film can be initially tensioned by rotating the shaft of the film winding roller 3 to avoid wrinkles. III. Automatic Cutting Operation Phase Start the drive motor 10 (model Y100L-2). The motor output shaft drives the transmission shaft to rotate via the coupling (model HL2), which in turn drives the transmission sprocket c15 to rotate. Under the linkage of the transmission chain 12 (model 08A-1), the transmission sprockets a4 and b9 rotate synchronously, driving the film rollers a6 and b7 to rotate respectively, achieving stable film conveying. During the conveying process, the chain tensioner (model XT-08A) automatically adjusts the chain tension to ensure smooth transmission; the skeleton oil seal (model TC40×62×12) between the shaft and the bearing housing effectively prevents dust from entering the bearing. As the film passes through the cutting assembly 13, the high-speed steel (W18Cr4V) cutting blades 20 precisely cut the film edges under the film conveying tension. The blades on the five adjusting cylinders can simultaneously complete multiple cutting operations, and the cut edge material can be collected manually or by an external edge material recycling device. The cut finished film continues to be conveyed forward and eventually winds onto the film winding roller 3. The winding roller 3 rotates flexibly within the UCP205 bearing seats via 6205 bearings at both ends, achieving uniform winding. IV. Operation Monitoring and Adjustment Phase During equipment operation, operators can observe the cutting process through the transparent window of the safety guard. If uneven cutting edges or dimensional deviations are found, the bolt body 19 or positioning screw 23 can be fine-tuned while the equipment is running (low speed mode): the bolt body 19 can be rotated by the anti-slip texture on the outer wall of the bolt body 19 to fine-tune the position of the adjusting cylinder 18; or the positioning screw 23 can be loosened to fine-tune the blade position along the adjusting slide 21. During the adjustment process, the PTFE wear-resistant strip on the inner wall of the adjusting slide 21 can reduce component wear. At the same time, the frequency converter can adjust the conveyor speed in real time to meet the cutting requirements of films of different thicknesses (0.01-0.5mm); if film slippage occurs, the film can be further tensioned by increasing the torque of the film roller. V. Shutdown and Material Change Stage After a batch of film is cut, first reduce the motor speed to stop using the frequency converter, and then turn off the power to the drive motor 10. Loosen the bearing seat fixing bolts at both ends of the film take-up roller 3, remove the cut film roll, replace it with a new film roll to be cut, and repeat the above feeding and film threading process to prepare for the next batch of cutting operations. After stopping the machine, clean the residual film debris on the cutting blade 20, check the tightness of the bolt body 19 and the positioning screw 23, add lubricating oil to the transmission chain 12, and ensure stable operation of the equipment next time.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A finished film edge cutting device, comprising a cutting frame (1), characterized in that, The front end of the cutting frame (1) is equipped with a winding frame (2), and the inside of the winding frame (2) is equipped with a film winding roller (3). The cutting frame (1) is equipped with film frame a (8) and film frame b (5) on the upper and lower rear sides. Film roller a (6) is mounted on film frame a (8) and film roller b (7) is mounted on film frame b (5). A cutting assembly (13) is mounted at the upper center of the cutting frame (1). The cutting assembly (13) includes a fixing frame (14) mounted on both sides of the upper end of the cutting frame (1). A fixing seat (16) is mounted on the upper end of the two fixing frames (14). A support rod (17) is installed between the two fixing seats (16). Five adjusting cylinders (18) are fitted on the outside of the support rod (17). Cutting blades (20) are mounted on the side walls of the adjusting cylinders (18).

2. The finished film edge cutting device according to claim 1, characterized in that, The lower end of the side wall of the adjusting cylinder (18) is provided with a positioning screw groove, and the center of the side wall of the cutting blade (20) is provided with an adjusting slide (21). The interior of the adjusting slide (21) is provided with three positioning holes (22), and positioning screws (23) are screwed into the positioning holes (22) and the positioning screw groove.

3. The finished film edge cutting device according to claim 1, characterized in that, The top of the adjusting cylinder (18) is provided with a fixing screw hole, and the outer wall of the support rod (17) is provided with fixing screw grooves evenly spaced. The fixing screw hole and fixing screw groove are screwed with bolt bodies (19).

4. The finished film edge cutting device according to claim 3, characterized in that, The bottom end of the bolt body (19) is provided with a circular groove (191), and a bolt rod (193) is installed at the bottom end of the circular groove (191). The bolt rod (193) is screwed into the fixing screw hole and the fixing screw groove.

5. The finished film edge cutting device according to claim 4, characterized in that, A retaining ring (196) is installed on the upper outer end of the bolt rod (193), and an annular pressure plate (195), a spring (197) and an annular rubber sheet (192) are fitted on the circumferential surface of the bolt rod (193).

6. The finished film edge cutting device according to claim 5, characterized in that, An extrusion block (194) is installed at the upper edge of the annular rubber sheet (192), and the outer wall of the bolt body (19) is provided with an arc surface (198), and the surface of the arc surface (198) is provided with anti-slip texture.

7. The finished film edge cutting device according to claim 1, characterized in that, A drive motor (10) is installed on one side of the rear end of the cutting frame (1). A drive sprocket a (4) is installed on the shaft of the film roller a (6). A drive sprocket b (9) is installed on the shaft of the film roller b (7). A drive sprocket c (15) is assembled at the drive end of the drive motor (10). A drive chain (12) is fitted between the drive sprocket a (4), drive sprocket b (9) and drive sprocket c (15).

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