A protective film cutting method and device

Abstract

The present invention relates to the technical field of protective film cutting, and in particular to a protective film cutting method and equipment, comprising a fixed platform, a support foot is fixedly installed at the bottom end of the fixed platform, and a fixed frame is fixedly installed at the middle part of the top end of the fixed platform through a vertical rod, two electric telescopic rods are rotatably installed on the inner walls of the four sides of the fixed frame, and a roller is fixedly installed between the telescopic ends of the two electric telescopic rods on each side, a roller is rotatably installed at the middle part of the roller, and a rotating rod is fixedly inserted on the fixed part of the electric telescopic rod inserted in the fixed frame, one end of the rotating rod extends out of the fixed frame, and the end of the rotating rod extending out of the fixed frame is connected to the output end of the motor, and a crossbeam frame is arranged directly above the fixed frame, a hydraulic rod is fixedly installed at the bottom end of the crossbeam frame, and a cutting ring is fixedly installed at the bottom end of the hydraulic rod, so that the protective film can be punched and cut automatically, and the protective film can be flattened before punching to avoid wrinkles of the protective film.

Description

Technical Field

[0001] The present invention relates to the technical field of protective film cutting, and in particular to a protective film cutting method and equipment. Background Art

[0002] When the protective film is cut, punching is mostly used for specific cutting. When the protective film is punched, wrinkles may appear on the punched protective film, so that the punched protective film is scrapped. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a protective film cutting method and equipment.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A protective film cutting method and equipment, including a fixed table, a support foot is fixedly installed at the bottom end of the fixed table, and a fixed frame is fixedly installed in the middle of the top end of the fixed table through a vertical rod, two electric telescopic rods are rotatably installed on the inner walls of the four sides of the fixed frame, and a roller is fixedly installed between the telescopic ends of the two electric telescopic rods on each side, a roller is rotatably installed in the middle of the roller, and a rotating rod is fixedly inserted on the fixed part of the electric telescopic rod inserted in the fixed frame, one end of the rotating rod extends out of the fixed frame, and the end of the rotating rod extending out of the fixed frame is connected to the output end of the motor, and a crossbeam frame is arranged directly above the fixed frame, a hydraulic rod is fixedly installed at the bottom end of the crossbeam frame, and a cutting ring is fixedly installed at the bottom end of the hydraulic rod.

[0006] Preferably, a film carrier is slidably disposed on the top surface of the fixing table, and the film carrier passes through the bottom end of the fixing frame.

[0007] Preferably, pull rods are installed and fixed in the middle of both ends of the film carrier plate.

[0008] Preferably, two rotation grooves are provided on the inner walls on the four sides of the fixed frame, the rotation groove is a right-angled trapezoid when viewed from the side, the upper end surface of the rotation groove is a horizontal surface, and the lower end surface of the rotation groove is an inclined surface, and a fixed part of the electric telescopic rod is arranged in the rotation groove through the rotation of a rotating rod.

[0009] Preferably, a sponge layer is provided on the outer side of the drum.

[0010] A protective film cutting method,

[0011] S1. Lay the protective film horizontally on the film carrier, and place the film carrier on a fixed table;

[0012] S2, push the film carrier to the bottom end of the fixed frame through the pull rod;

[0013] S3, the controller controls the four motors on the fixed frame to rotate synchronously, and the motor drives the electric telescopic rod to rotate downward in the rotating groove through the rotating rod, so that the end surface of the fixed part of the electric telescopic rod fits with the lower end inclined surface of the rotating groove, so that the rollers on the four sides are evenly pressed on the film carrier;

[0014] S4. The controller controls the four groups of electric telescopic rods to retract synchronously, so that the roller retracts and rolls to four sides on the film carrier, so that the protective film is flattened on the film carrier and the protective film is fixed around.

[0015] S5, the controller controls the hydraulic rod to drive the cutting ring to punch downward, and performs annular punching on the protective film on the film carrier plate;

[0016] S6. After a single punching, the controller controls the motor to drive the electric telescopic rod to reset, and the fixed part of the electric telescopic rod fits with the upper horizontal surface of the rotating groove, and the electric telescopic rod drives the roller to extend and reset;

[0017] S7. Push it to the fixed frame through the pull rod, and then punch and cut again.

[0018] Preferably, a single chip microcomputer is provided in the controller, and the model of the single chip microcomputer is AT89C51. The controller is connected with the motor, the electric telescopic rod and the hydraulic rod through electrical signals.

[0019] The beneficial effects of the present invention are:

[0020] The present invention can punch and cut the protective film automatically by using a roller to automatically unfold the protective film and fix the four sides of the protective film when punching and cutting the protective film, and can flatten the protective film before punching and cut to avoid wrinkles of the protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a protective film cutting method and device proposed by the present invention;

[0022] Figure 2 It is a schematic diagram of the top view structure of the fixed frame;

[0023] Figure 3 A side view of the structure of the rotating slot in the fixed frame.

[0024] In the figure: 1 fixed platform, 2 supporting legs, 3 fixed frame, 4 vertical rods, 5 film carrier plate, 6 pull rods, 7 hydraulic rods, 8 cutting rings, 9 electric telescopic rods, 10 rollers, 11 rotating rods, 12 motors, and 13 rotating grooves. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-3 A protective film cutting method and device includes a fixed platform 1, a support leg 2 is fixedly installed at the bottom end of the fixed platform 1, and a fixed frame 3 is fixedly installed in the middle of the top of the fixed platform 1 through a vertical rod 4, two electric telescopic rods 9 are rotatably installed on the inner walls of the four sides of the fixed frame 3, and a roller is fixedly installed between the telescopic ends of the two electric telescopic rods 9 on each side, a roller 10 is rotatably installed in the middle of the roller, and a sponge layer is arranged on the outside of the roller 10.

[0027] A rotating rod 11 is inserted and fixed on the fixed part of the electric telescopic rod 9 inserted in the fixed frame 3, one end of the rotating rod 11 extends out of the fixed frame 3, and the end of the rotating rod 11 extending out of the fixed frame 3 is connected to the output end of the motor 12, and a crossbeam frame is arranged directly above the fixed frame 3, a hydraulic rod 7 is installed and fixed at the bottom end of the crossbeam frame, and a cutting ring 8 is installed and fixed at the bottom end of the hydraulic rod 7.

[0028] A film carrier plate 5 is slidably disposed on the top surface of the fixing platform 1 . The film carrier plate 5 passes through the bottom end of the fixing frame 3 . Pull rods 6 are fixedly installed in the middle of both ends of the film carrier plate 5 .

[0029] Two rotation grooves 13 are provided on the inner walls of the four sides of the fixed frame 3. The rotation groove 13 is a right-angled trapezoid when viewed from the side, and the upper end surface of the rotation groove 13 is a horizontal surface, and the lower end surface of the rotation groove 13 is an inclined surface. The fixed part of the electric telescopic rod 9 is rotatably arranged in the rotation groove 13 through the rotating rod 11.

[0030] A protective film cutting method,

[0031] S1, laying the protective film horizontally on the film carrier 5, and placing the film carrier 5 on the fixing table 1;

[0032] S2, push the film carrier plate 5 to the bottom end of the fixed frame 3 through the pull rod 6;

[0033] S3, the controller controls the four motors 12 on the fixed frame 3 to rotate synchronously, and the motor 12 drives the electric telescopic rod 9 to rotate downward in the rotating groove 13 through the rotating rod 11, so that the end surface of the fixed part of the electric telescopic rod 9 fits with the lower end inclined surface of the rotating groove 13, so that the rollers 10 on the four sides are evenly pressed on the film carrier 5;

[0034] S4, the controller controls the four groups of electric telescopic rods 9 to retract synchronously, so that the roller 10 retracts and rolls to four sides on the film carrier plate 5, so that the protective film is flattened on the film carrier plate 5, and the protective film is fixed around.

[0035] S5, the controller controls the hydraulic rod 7 to drive the cutting ring 8 to punch downward, and performs annular punching on the protective film on the film carrier plate 5;

[0036] S6, after a single punching, the controller controls the motor 12 to drive the electric telescopic rod 9 to reset, and the fixed part of the electric telescopic rod 9 is in contact with the upper horizontal surface of the rotating groove 13, and the electric telescopic rod 9 drives the roller 10 to extend and reset;

[0037] S7, push it to the fixed frame 3 through the pull rod 6, and then punch and cut again.

[0038] The controller is provided with a single chip microcomputer, the model of which is AT89C51. The controller is connected with the motor 12, the electric telescopic rod 9 and the hydraulic rod 7 through electrical signals.

[0039] In this embodiment, the protective film is horizontally laid on the film carrier 5, and the film carrier 5 is placed on the fixed table 1, and the film carrier 5 is pushed to the bottom end of the fixed frame 3 through the pull rod 6. The four motors 12 on the fixed frame 3 are controlled by the controller to rotate synchronously. The motor 12 drives the electric telescopic rod 9 to rotate downward in the rotating groove 13 through the rotating rod 11, so that the end face of the fixed part of the electric telescopic rod 9 is in contact with the lower end inclined surface of the rotating groove 13, so that the rollers 10 on the four sides are evenly pressed on the film carrier 5, and the controller controls the four groups of electric telescopic rods 9 to rotate synchronously. Retraction causes the roller 10 to retract and roll to the four sides on the film carrier 5, so that the protective film is flattened on the film carrier 5 and the protective film is fixed on all sides. The controller controls the hydraulic rod 7 to drive the cutting ring 8 to punch downward, and perform annular punching on the protective film on the film carrier 5. After a single punching, the controller controls the motor 12 to drive the electric telescopic rod 9 to reset, and the fixed part of the electric telescopic rod 9 is in contact with the upper end horizontal surface of the rotating groove 13, and the electric telescopic rod 9 drives the roller 10 to extend and reset, and is pushed to the fixed frame 3 through the pull rod 6, and then punches again.

[0040] The present invention can punch the protective film automatically by the roller 10 when punching the protective film, fix the protective film around, and punch through the cutting ring 8, so that the protective film can be punched and flattened before punching to avoid wrinkles of the protective film.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A protective film cutting device, comprising a fixing table (1), characterized in that: A support leg (2) is fixedly mounted on the bottom end of the fixed platform (1), and a fixed frame (3) is fixedly mounted on the middle part of the top end of the fixed platform (1) via a vertical rod (4). Two electric telescopic rods (9) are rotatably mounted on the inner walls of the four sides of the fixed frame (3), and a roller is fixedly mounted between the telescopic ends of the two electric telescopic rods (9) on each side, and a roller (10) is rotatably mounted on the middle part of the roller, and a rotating rod (11) is fixedly mounted on the fixed part of the electric telescopic rod (9) inserted in the fixed frame (3), one end of the rotating rod (11) extends out of the fixed frame (3), and one end of the rotating rod (11) extending out of the fixed frame (3) is connected to the output end of the motor (12), and a crossbeam frame is arranged directly above the fixed frame (3), a hydraulic rod (7) is fixedly mounted on the bottom end of the crossbeam frame, and a cutting ring (8) is fixedly mounted on the bottom end of the hydraulic rod (7); A film carrier (5) is slidably arranged on the top surface of the fixed platform (1), and the film carrier (5) passes through the bottom end of the fixed frame (3). A pull rod (6) is fixedly installed in the middle of both ends of the film carrier (5). Two rotating grooves (13) are provided on the inner walls of the four sides of the fixed frame (3). The rotating groove (13) is a right-angled trapezoid when viewed from the side, and the upper end surface of the rotating groove (13) is a horizontal surface, and the lower end surface of the rotating groove (13) is an inclined surface. A fixed part of the electric telescopic rod (9) is rotatably arranged in the rotating groove (13) through a rotating rod (11).

2. The protective film cutting device according to claim 1, characterized in that: A sponge layer is arranged on the outer side of the drum (10).

3. A protective film cutting method, applied to a protective film cutting device according to any one of claims 1 to 2, wherein the method is characterized in that: The steps include: S1, laying the protective film horizontally on the film carrier (5), and placing the film carrier (5) on the fixed platform (1); S2, pushing the film carrier (5) to the bottom end of the fixed frame (3) through the pull rod (6); S3, controlling the four motors (12) on the fixed frame (3) to rotate synchronously through the controller, and the motor (12) drives the electric telescopic rod (9) to rotate downward in the rotating groove (13) through the rotating rod (11), so that the end surface of the fixed part of the electric telescopic rod (9) fits with the lower end inclined surface of the rotating groove (13), so that the rollers (10) on the four sides are evenly pressed on the film carrier (5); S4, the controller controls the four groups of electric telescopic rods (9) to retract synchronously, so that the roller (10) retracts and rolls on the four sides of the film carrier (5), so that the protective film is flattened on the film carrier (5), and the protective film is fixed on all sides; S5, the controller controls the hydraulic rod (7) to drive the cutting ring (8) to punch downward, thereby performing annular punching on the protective film on the film carrier plate (5); S6. After a single punching, the controller controls the motor (12) to drive the electric telescopic rod (9) to reset, and the fixed portion of the electric telescopic rod (9) is in contact with the upper horizontal surface of the rotating groove (13), and the electric telescopic rod (9) drives the roller (10) to extend and reset; S7, push it to the fixed frame (3) through the pull rod (6), and then punch and cut again.

4. A protective film cutting method according to claim 3, characterized in that: The controller is provided with a single-chip microcomputer, the model of which is AT89C51. The controller is connected to the motor (12), the electric telescopic rod (9) and the hydraulic rod (7) through electrical signals.

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