Rewinding edge trimmer

Abstract

The utility model provides a rewinding edge trimmer which is used for solving the problems that in the prior art, a blade can not be cooled in time, and aluminum powder pollution is generated due to cutting. The edge trimmer comprises a rack, an uncoiling roller and a coiling roller, a through groove is formed in the rack, a linear motor set is arranged on one side of the through groove, a tool frame is fixed to the linear motor set and moves in the through groove, the moving direction of the tool frame is the same as the axis direction of the coiling roller, and a first pressing roller is arranged on the portion, between the through groove and the uncoiling roller, of the rack. A second pressing roller is arranged between the through groove and the winding roller, a blade is fixed to the face, close to the center of the rack, of the tool frame, the cutting edge of the blade faces the unwinding roller, the blade is perpendicular to the top face of the rack, a cooling liquid pipe is fixed to the position above the blade through the tool frame, and a liquid collecting groove communicated with the blade is formed in the side, away from the center of the rack, of the tool frame. Heat generated by the blade in the cutting process can be effectively reduced through the cooling liquid pipe, and the stability and sharpness of the blade are kept.

Description

Technical Field

[0001] The utility model relates to the technical field of rewinding machine edge trimming equipment, in particular to a rewinding machine edge trimming machine. Background Art

[0002] Aluminum plate rewinding machine is an auxiliary equipment in the production process of aluminum plate and strip. It is used to trim and rewind aluminum or aluminum alloy plate and strip coils that have undergone a certain number of rolling passes offline to meet the needs of aluminum plate and strip rolling process. Usually, the rewinding machine is mainly used for trimming thick aluminum strip coils. With the development of the economy, the application of thin aluminum strip coils with a thickness of 0.2mm to 0.5mm is becoming more and more extensive. In the existing slitting process, the friction between the foil and the blade will generate heat. Part of the heat has been dissipated at room temperature during the rewinding, while the other part of the heat remains on the blade, and it is accumulated heat. The longer the slitting time and the higher the speed, the more heat will remain on the blade. In this way, the blade transfers the heat to the foil, forming heat transfer to the foil. Since the blade is already high temperature at this time, it will produce dust sticking to the blade when it contacts the foil, which will make the blade lose its sharpness, resulting in powder loss and warping. In addition, if the aluminum foil shakes during the cutting process, the accuracy of cutting the aluminum foil cannot be guaranteed. Utility Model Content

[0003] The utility model provides a rewinding edge trimming machine, which solves the problems of the blade being unable to be cooled in time and aluminum powder pollution caused by cutting in the prior art.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A rewinding trimming machine comprises a frame, an unwinding roller and a winding roller, a through slot is provided on the frame, a linear motor group is provided on the bottom surface of the frame, a tool holder is fixed to the linear motor group, the tool holder moves in the through slot, and the moving direction of the tool holder is the same as the axial direction of the winding roller, a first pressing roller is provided on the frame between the through slot and the unwinding roller, a second pressing roller is provided between the through slot and the winding roller, a blade is fixed on a side of the tool holder close to the center of the frame, the cutting edge of the blade faces the unwinding roller, and the blade is perpendicular to the top surface of the frame, a coolant pipe is fixed above the blade through the tool holder, a liquid collecting tank connected to the blade is provided on the side of the tool holder away from the center of the frame, the liquid collecting tank is connected to a recovery bin through a drain pipe, and the coolant pipe is connected to the coolant bin through a circulating pump.

[0006] Furthermore, a notch with a trapezoidal cross section is provided on one side of the tool holder, the large end of the notch faces the unwinding roller, the small end of the notch is connected to a guide tube, the guide tube is connected to a scrap recovery bin, and the guide tube near one end of the tool holder rotates with corresponding upper and lower rollers, the rollers are driven by a recovery motor, and the rollers have the same linear speed as the winding roller. The manual work of cleaning scraps is reduced, and production efficiency is improved. The synchronous speed can ensure that the strip aluminum foil will not be over-tightened and broken during the cutting process, nor will it accumulate and relax due to too slow moving speed, which helps to smoothly guide the aluminum foil blank for cutting.

[0007] Furthermore, a guide roller is provided between the frame and the winding roller, the guide roller is fixed on the frame, both ends of the guide roller are hinged with connecting rods, the connecting rods are respectively hinged with the two ends of the tension roller, scrapers are fixed on the inner side of the connecting rods, the top ends of the scrapers are against each other, and form a triangular structure with the tension roller, a liquid collecting bin is provided below the scraper, a tension motor is fixed on one side of the guide roller, and the tension motor swings the tension roller relative to the guide roller through the connecting rod. In the process of the aluminum foil passing through the guide roller and the tension roller, the scraper can scrape off foreign matter on its surface to ensure the cleanliness of the aluminum foil. A filter can be set at the connection between the pipeline and the liquid collecting bin to effectively filter out impurities in the coolant and ensure the quality of the recovered coolant.

[0008] Furthermore, the side wall of the connecting rod is rotatably provided with a fixed shaft, and a U-shaped connecting piece is fixed to one end of the fixed shaft located inside the connecting rod, and the scraper and the connecting piece can be fixedly hinged. The rotatably fixed scraper can meet the processing requirements of aluminum foils of different specifications and thicknesses, thereby improving the flexibility and adaptability of the equipment.

[0009] Furthermore, the first pressing roller and the second pressing roller both include a bracket, a rotating frame is connected to the lower part of the bracket through a plurality of telescopic rods, a pressing roller is rotated at the bottom of the rotating frame, the pressing roller can abut against the top surface of the frame, and the second pressing roller is driven by a driving motor. The pressing roller is connected to the telescopic rod through the rotating frame, which can ensure stability and uniformity when applying pressure.

[0010] Furthermore, the linear motor group is a double-motor linear motor, which includes two movers, each of which is fixed with a tool holder, and a limit rod is hinged on one side of the tool holder close to the blade, one side of the limit rod abuts against the blade, and a laser rangefinder is fixed on the other side. The spacing between the blades can be accurately measured by the cooperation of the limit rod and the laser rangefinder, so as to facilitate the adjustment of the cutting size.

[0011] Furthermore, the guide roller and the winding roller are both fixedly sleeved with a felt layer, which can absorb cutting fluid, thereby maintaining the cleanliness of the aluminum foil and reducing pollution.

[0012] Furthermore, the winding roller is electrically connected to a static electricity removal device, which can reduce the risk of operators suffering from static electricity shock and improve the safety of the working environment. Beneficial Effects

[0013] The utility model effectively reduces the heat generated by the blade during the cutting process by the cutting fluid that continuously flows along the blade, thereby maintaining the stability and sharpness of the blade, while the stationary blade cooperates with the coolant to prevent the splashing of the cold cutting fluid and cause environmental pollution. The guide tube and the roller ensure the transmission of the edge material, and avoid the accumulation or blockage of the edge material in the guide tube. The first pressing roller and the second pressing roller ensure that the aluminum foil is smoothly transported during the cutting process, reduce wrinkles and deviations, and ensure cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0018] Figure 4 is a schematic diagram of a cross-sectional three-dimensional structure of a tool holder;

[0019] Figure 5 for Figure 1 A partial enlarged view of the middle A;

[0020] Figure 6 for Figure 1 A partial enlarged view of point C in the middle.

[0021] Among them: 1. frame, 2. unwinding roller, 3. winding roller, 4. through groove, 5. coolant pipe, 6. tool holder, 7. blade, 8. liquid collecting tank, 9. notch, 10. guide tube, 11. roller, 12. guide roller, 13. connecting rod, 14. tension roller, 15. liquid collecting bin, 16. fixed shaft, 17. connecting piece, 18. first pressure roller, 19. second pressure roller, 20. pressure roller, 21. limit rod, 22. laser rangefinder, 23. scraper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 and 4 As shown, the embodiment of the utility model provides a rewinding and trimming machine, including a frame 1, an unwinding roller 2 is provided at one end of the frame 1, and a winding roller 3 is provided at the other end. A through slot 4 is provided on the frame 1, and a linear motor group is provided on the bottom surface of the frame 1. A tool holder 6 is fixed to the linear motor group. The tool holder 6 moves in the through slot 4, and the moving direction of the tool holder 6 is the same as the axial direction of the winding roller 3. A first pressing roller 18 is provided on the frame 1 between the through slot 4 and the unwinding roller 2, and a second pressing roller 19 is provided between the through slot 4 and the winding roller 3. A blade 7 is fixed on one side of the tool holder 6 close to the center of the frame 1, and the blade 7 faces the unwinding roller 2, and the blade 7 is perpendicular to the top surface of the frame 1. A coolant pipe 5 is fixed above the blade 7 through the tool holder 6, and a liquid collecting tank 8 connected to the blade 7 is provided on the side of the tool holder 6 away from the center of the frame 1. The liquid collecting tank 8 is connected to the recovery bin through a drain pipe, and the coolant pipe 5 is connected to the coolant bin through a circulating pump. The blade 7 is a sheet cutter, and the blade 7, the linear motor unit, and the coolant are all prior art. The recovery bin is connected to the coolant bin via a first pipeline.

[0024] During use, the upper surface of the frame 1 is first cleaned to prevent the residue on the frame 1 from scratching the aluminum foil stock. The aluminum foil stock passes through the unwinding roller 2, the first pressing roller 18, the through groove 4 and the second pressing roller 19 in sequence and is wound on the winding roller 3. When the aluminum foil stock passes through the tool holder 6 set at the through groove 4, it is cut by the blade 7 fixed on the tool holder 6 to achieve the effect of trimming. The cut aluminum foil stock is wound and fixed on the winding roller 3, and the winding roller 3 is started at the same time. The winding roller 3 will pull the aluminum foil stock to move toward the blade of the blade 7. At this time, the blade 7 can continue to cut the aluminum foil stock, and the coolant pipe 5 is started while cutting. The coolant flows downward from the top of the blade 7 under the action of gravity and washes the heat of the blade 7 and the aluminum powder generated by cutting into the liquid collecting tank 8, and finally flows into the recovery bin along the drain pipe. After the coolant is precipitated and filtered in the recovery bin, the pipeline with a one-way valve can be connected to the side wall of the recovery bin. The coolant near the top of the recovery bin flows into the cooling bin for recycling through the one-way valve, and the aluminum powder will be precipitated in the recovery bin. The first pressing roller 18 and the second pressing roller 19 stretch and flatten the aluminum foil stock, and the upper top surface of the frame 1 supports the aluminum foil stock to ensure that the aluminum foil stock does not shake during the cutting process. The coolant can be a coolant for aluminum processing.

[0025] A notch 9 with a trapezoidal cross section is provided on one side of the tool holder 6. The large end of the notch 9 faces the unwinding roller. The small end of the notch 9 is connected to a guide tube 10. The guide tube 10 is connected to a side material recovery bin. Two rollers 11 rotate inside the guide tube 10 near one end of the tool holder 6. The two rollers 11 are symmetrically arranged up and down and rotate in opposite directions. The rollers 11 are driven by a recovery motor and have a linear speed that is the same in size and direction as the winding roller 3.

[0026] After the blade 7 cuts the aluminum foil stock, the generated edge material enters the guide tube 10 along the side wall of the blade 7, and the edge material is automatically tightened and transferred to the recovery bin by the friction force of the roller 11, ensuring the transmission of the edge material and avoiding the accumulation or blockage of the edge material in the guide tube 10. Maintaining a consistent line speed can reduce the friction generated by the edge material during the cutting and moving process, avoid surface scratches or wrinkles, and because the edge material is smoothly guided to the edge material bin, it helps to maintain a stable tension of the aluminum foil stock during the cutting process, thereby ensuring the accuracy and quality of the cutting process.

[0027] like Figure 1-3 As shown, a guide roller 12 is provided between the frame 1 and the winding roller 3. The guide roller 12 is fixed on the frame 1. Both ends of the guide roller 12 are hinged with connecting rods 13. The connecting rods 13 are respectively hinged with both ends of the tension roller 14. A scraper 23 is fixed on the inner side of the connecting rod 13. The top ends of the scraper 23 abut against each other and form a triangular structure with the tension roller 14. A liquid collecting bin 15 is provided below the scraper 23. A tension motor is fixed on one side of the guide roller 12. The tension motor swings the tension roller 14 relative to the guide roller 12 through the connecting rod 13. The tension motor is electrically connected to a tension sensing device. The side wall of the liquid collecting bin 15 is connected to the coolant bin through a pipeline, and a filter is provided at the connection between the pipeline and the liquid collecting bin 15. The scraper 23 includes a fixing rod, and a silicone strip is fixed in the fixing rod through a T-shaped slot. The tension sensing device and the tension motor are both used in the trimming machine. The scraper 23, the tension sensing device and the tension motor are all prior art.

[0028] During the winding process, there will be residual coolant moving to the winding roller 3 with the strip aluminum foil. In order to prevent the coolant from being wound into the aluminum foil stock, and the coolant will not be processed for a long time, it will have adverse effects on the aluminum foil stock, such as adhesion or pollution on the surface of the aluminum foil. The cutting fluid remaining on the aluminum foil stock can be scraped clean by the scraper 23. The cutting fluid flows out along the inclined scraper 23 under the action of gravity and falls into the liquid collecting bin 15, thereby preventing the cutting fluid from remaining on the aluminum foil stock and protecting the surface quality of the aluminum foil stock. The guide roller 12 provides a smooth guide path for the aluminum foil, which helps to maintain the stable transmission of the aluminum foil stock. The tension of the aluminum foil is detected by the tension sensing device, and the tension roller is driven by the tension motor to apply appropriate tension to the aluminum foil, ensuring that the aluminum foil stock remains flat before entering the winding roller 3, thereby ensuring the quality of the winding.

[0029] The side wall of the connecting rod 13 is rotatably provided with a fixed shaft 16, and one end of the fixed shaft 16 located inside the connecting rod 13 is fixed with a U-shaped connecting piece 17, and the scraper 23 can be fixedly hinged with the connecting piece 17. The fixed shaft 16 is rotatably connected to the connecting rod 13 by bolts and nuts.

[0030] The scraper 23 rotates on the connecting rod 13 through the fixed shaft 16 and the U-shaped connecting piece 17. The angle of the scraper 23 can be adjusted according to the tension and thickness of the aluminum foil to ensure that the scraper 23 fits tightly against the surface of the aluminum foil, effectively cleaning the excess substances that may exist on the surface of the aluminum foil blank, such as coolant, dust or aluminum powder generated by cutting, thereby improving the surface quality of the product after trimming.

[0031] The first pressing roller 18 and the second pressing roller 19 both include a bracket, and a rotating frame is connected to the bottom of the bracket through a plurality of telescopic rods. A pressing roller 20 is rotated at the bottom of the rotating frame, and the pressing roller 20 can be against the top surface of the frame 1. The second pressing roller 19 is driven by a driving motor. The pressure of the pressing roller 20 on the material can be adjusted by the telescopic rod to adapt to aluminum foils of different thicknesses or different materials, ensure the lamination quality, and prevent the aluminum foil from being offset or twisted during the transmission process, so as to ensure the flatness and cutting accuracy of the aluminum foil. The second pressing roller 19 is connected to the driving motor, and the second pressing roller 19 provides power to the aluminum foil through the friction force with the aluminum foil, and can also ensure that the aluminum foil maintains appropriate tension during the cutting process, thereby preventing quality problems caused by wrinkles and relaxation during the cutting process.

[0032] like Figure 4-5As shown, the linear motor group is a double-motor linear motor, which includes two movers, each of which is fixed with a tool holder 6, wherein a limit rod 21 is hingedly connected to one side of the tool holder 6 close to the blade 7, one side of the limit rod 21 is against the blade 7, and a laser rangefinder 22 is fixed to the other side. In order to ensure the size after cutting, the distance between the two blades 7 is measured by the laser rangefinder 22, and then the distance between the blades 7 is adjusted by the double-motor linear motor, thereby improving the accuracy and quality of cutting. The limit rod 21 can play a certain role in fixing and supporting the blade 7, and the limit rod 21 can also serve as a reference between the laser rangefinder 22 and the blade 7 to ensure the accuracy of cutting. The double-motor linear motor and the laser rangefinder 22 are both prior art.

[0033] like Figure 1 As shown, the guide roller 12 and the winding roller 3 are both fixedly sleeved with a felt layer. By arranging the felt layer on the guide roller 12, the cutting fluid on the bottom surface of the aluminum foil stock can be absorbed and cleaned, and the winding roller 3 can clean the cutting fluid remaining on the scraper 23, so that the aluminum foil stock is kept dry. The felt layer provides good friction performance, making it difficult for the aluminum foil stock to slide or deflect. When the felt layer is worn or dirty, it can be simply replaced without complicated maintenance procedures.

[0034] The winding roller 3 is electrically connected to a static electricity removal device. Static electricity may attract dust and other pollutants to the surface of the aluminum foil, affecting the cleanliness and quality of the product, and the static electricity removal device can reduce the static electricity generated by the friction between the felt layer and the aluminum foil blank. The static electricity removal device is a prior art.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rewinding trimming machine, comprising a frame (1), an unwinding roller (2) and a winding roller (3), characterized in that: A through slot (4) is provided on the frame (1), a linear motor group is provided on the bottom surface of the frame (1), a tool holder (6) is fixed to the linear motor group, the tool holder (6) moves in the through slot (4), the moving direction of the tool holder (6) is the same as the axial direction of the winding roller (3), a first pressing roller (18) is provided on the frame (1) between the through slot (4) and the unwinding roller (2), a second pressing roller (19) is provided between the through slot (4) and the winding roller (3), a blade (7) is fixed on one side of the tool holder (6) close to the center of the frame (1), the blade (7) faces the unwinding roller (2), and the blade (7) is perpendicular to the top surface of the frame (1), a coolant pipe (5) is fixed above the blade (7) through the tool holder (6), a liquid collecting tank (8) connected to the blade (7) is provided on one side of the tool holder (6) away from the center of the frame (1), the liquid collecting tank (8) is connected to a recovery bin via a drain pipe, and the coolant pipe (5) is connected to the coolant bin via a circulating pump.

2. A rewinding trimming machine according to claim 1, characterized in that: A notch (9) with a trapezoidal cross section is provided on one side of the tool holder (6), the large end of the notch (9) faces the unwinding roller, the small end of the notch (9) is connected to a guide tube (10), the guide tube (10) is connected to a side material recovery bin, two rollers (11) are rotated inside the guide tube (10) near one end of the tool holder (6), the two rollers (11) are symmetrically arranged up and down, the rollers (11) are driven by a recovery motor, and the rollers (11) have a linear speed that is the same as that of the winding roller (3).

3. The rewinding edge trimming machine according to claim 1, characterized in that: A guide roller (12) is provided between the frame (1) and the winding roller (3). The guide roller (12) is fixed on the frame (1). Connecting rods (13) are hinged at both ends of the guide roller (12). The connecting rods (13) are respectively hinged to both ends of the tension roller (14). Scrapers (23) are fixed on the inner sides of the connecting rods (13). The top ends of the scrapers (23) abut against each other and form a triangular structure with the tension roller (14). A liquid collecting bin (15) is provided below the scrapers (23). A tension motor is fixed on one side of the guide roller (12). The tension motor causes the tension roller (14) to swing relative to the guide roller (12) through the connecting rod (13).

4. The rewinding edge trimming machine according to claim 3, characterized in that: A fixed shaft (16) is rotatably mounted on the side wall of the connecting rod (13); a U-shaped connecting piece (17) is fixed to one end of the fixed shaft (16) located inside the connecting rod (13); and the scraper (23) and the connecting piece (17) can be fixedly hinged.

5. The rewinding edge trimming machine according to claim 1, characterized in that: The first pressing roller (18) and the second pressing roller (19) both comprise a bracket, a rotating frame is connected to the lower part of the bracket via a plurality of telescopic rods, a pressing roller (20) is rotatably disposed at the bottom of the rotating frame, the pressing roller (20) can abut against the top surface of the frame (1), and the second pressing roller (19) is driven by a driving motor.

6. The rewinding edge trimming machine according to claim 1, characterized in that: The linear motor assembly is a double-mover linear motor, comprising two movers, each of which has a tool holder (6) fixed thereon, wherein a limit rod (21) is hingedly connected to a side of one of the tool holders (6) close to the blade (7), one side of the limit rod (21) abuts against the blade (7), and a laser rangefinder (22) is fixed to the other side.

7. The rewinding edge trimming machine according to claim 3, characterized in that: The guide roller (12) and the winding roller (3) are both fixedly sleeved with a felt layer.

8. A rewinding trimming machine according to any one of claims 1 to 7, characterized in that: The winding roller (3) is electrically connected to a static electricity removal device.

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