A double servo pressure wheel follower film stripping machine head and a film stripping machine

Abstract

The present invention discloses a dual-servo pressure roller follower film cutting machine head, comprising a servo lifting mechanism, a servo rotating mechanism, a buffer rod, a knife holder, a cutting knife and a depth control roller; the servo lifting mechanism is used to drive the servo rotating mechanism to lift and lower, and the servo rotating mechanism comprises a rotary motor and a rotary transmission member, the rotary motor, the rotary transmission member, the buffer rod and the knife holder are connected in sequence, and the rotary motor can drive the buffer rod and the knife holder to rotate through the rotary transmission member; the cutting knife and the depth control roller are arranged on the knife holder, the depth control roller can abut against the material to be cut, and the cutting knife extends downward a predetermined distance relative to the depth control roller. Correspondingly, the present invention also discloses a film cutting machine. By adopting the present invention, when facing non-flat cutting occasions such as warped product surfaces, the film cutting machine head can still quickly cut a scratch of a predetermined depth, is less affected by the height of the product surface, and has stable cutting quality.

Description

Technical Field

[0001] The present invention relates to the technical field of film stripping machines, and in particular to a dual-servo pressure wheel follower film stripping machine head and a film stripping machine. Background Art

[0002] A film cutting machine is a device used to cut the protective film on the surface of a metal plate so that subsequent operations such as opening holes in the metal plate surface can be performed. Existing film cutting machines are composed of a drive mechanism and a film cutting head. The drive mechanism drives the film cutting head to move to a certain depth on the surface of the metal plate to be cut to cut the protective film. The film cutting head is usually connected to a buffer structure, so when faced with a small amount of unevenness on the surface of the plate, it can rely on its own expansion and contraction to compensate and ensure the stability of the cutting depth. However, some thinner plates will warp due to their own deformation, and some plates themselves even have curved surfaces. Traditional film cutting heads are greatly affected when cutting in this area, and the cutting depth often exceeds the process limit, resulting in the packaging film that is expected to be removed cannot be reliably separated from the expected retained part, affecting subsequent processing. Summary of the Invention

[0003] In order to solve the defects of the prior art, the present invention provides a dual-servo pressure wheel follow-up film cutting head and a film cutting machine. When facing non-flat cutting occasions such as warped product surfaces, it can still quickly cut scratches of a predetermined depth, is less affected by the height of the product surface, and has stable cutting quality.

[0004] In order to solve the above technical problems, the present invention provides a dual-servo pressure roller follower film cutting machine head, including a servo lifting mechanism, a servo rotating mechanism, a buffer rod, a knife holder, a cutting knife and a depth control roller; the servo lifting mechanism is used to drive the servo rotating mechanism to lift and lower, and the servo rotating mechanism includes a rotating motor and a rotating transmission member, and the rotating motor, the rotating transmission member, the buffer rod and the knife holder are connected in sequence, and the rotating motor can drive the buffer rod and the knife holder to rotate through the rotating transmission member; the cutting knife and the depth control roller are arranged on the knife holder, and the depth control roller can abut against the material to be cut, and the cutting knife extends downward a predetermined distance relative to the depth control roller.

[0005] As an improvement of the above solution, the rotating transmission member includes a rotating sleeve, the servo lifting mechanism includes a lifting seat, and the rotating sleeve is rotatably mounted on the lifting seat; the rotating sleeve is provided with a rotating cavity, and the buffer rod and the knife seat are located in the rotating cavity.

[0006] As an improvement to the above solution, a rotation limiting portion is provided at the upper end of the tool holder, a positioning sleeve is provided in the rotation cavity, and a preset gap is provided between the rotation limiting portion and the positioning sleeve.

[0007] As an improvement of the above solution, the buffer rod is fixed to the top of the rotating sleeve, and the telescopic portion of the buffer rod is fixedly connected to the rotation limiting portion; the telescopic portion can be telescoped relative to the buffer rod and rotate synchronously with the buffer rod.

[0008] As an improvement to the above solution, the rotary transmission member further includes a coupling and a connecting shaft, and the rotary motor is fixedly connected to the rotary sleeve via the coupling and the connecting shaft.

[0009] As an improvement of the above-mentioned scheme, the cutting knife includes a blade and a blade body, and reset grooves are provided on both sides of the blade body; the knife seat includes a knife groove for inserting the cutting knife, and the top of the knife groove is provided with an inclined adjustment bolt, and the side is provided with a horizontal locking bolt; the knife groove is provided with an elastic column corresponding to the reset groove, and the elastic column abuts against the bottom of the reset groove.

[0010] As an improvement to the above solution, the rolling direction of the depth control roller is the same as the cutting direction of the cutting knife.

[0011] As an improvement of the above-mentioned solution, the servo lifting mechanism also includes a lifting motor, a screw rod and a guide rail. The lifting seat is provided with a slider and a screw rod nut. The slider is arranged on the guide rail, and the screw rod nut is arranged on the screw rod. The lifting motor is connected to the screw rod and can drive the screw rod to rotate.

[0012] As an improvement to the above solution, a pressure plate is further included, and the pressure plate is arranged on the outer side of the tool holder through a pressure plate buffer rod.

[0013] Correspondingly, the present invention also provides a film stripping machine, which includes the dual-servo pressure wheel follower film stripping machine head as described above.

[0014] The implementation of the present invention has the following beneficial effects:

[0015] In this embodiment, the cutting depth of the scoring blade is controlled by a depth control roller, offering more precise control than with conventional scoring blades. This allows for rapid scoring of the desired depth, particularly when dealing with uneven surfaces such as warped products. The tool is minimally affected by the product's surface height, ensuring consistent cutting quality. Furthermore, the scoring blade is driven by a servo rotation mechanism, ensuring that the blade's direction remains consistent with the cutting direction, resulting in smoother cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a dual-servo pressure wheel follower film cutting machine head of the present invention;

[0017] Figure 2 This is a structural diagram of the knife seat position of a dual-servo pressure wheel follower film cutting machine head of the present invention;

[0018] Figure 3 This is a cross-sectional view of a dual-servo pressure wheel follower film cutting machine head of the present invention;

[0019] Figure 4 yes Figure 3 Magnified view of part A. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.

[0021] like Figures 1-4 As shown, a specific embodiment of the present invention provides a dual-servo pressure roller follower film cutting machine head, which is installed on the driving beam of the film cutting machine and is driven by the driving beam to move on the surface of the material to be cut, and a scratch of a preset trajectory is made by the cutting knife. The film cutting machine head includes a servo lifting mechanism 1, a servo rotating mechanism 2, a buffer rod 3, a knife holder 4, a cutting knife 5 and a depth control roller 6; the servo lifting mechanism 1 is used to drive the servo rotating mechanism 2 to rise and fall, and the servo rotating mechanism 2 includes a rotary motor 21 and a rotary transmission member, and the rotary motor 21, the rotary transmission member, the buffer rod 3 and the knife holder 4 are connected in sequence, and the rotary motor 21 can drive the buffer rod 3 and the knife holder 4 to rotate through the rotary transmission member; the cutting knife 5 and the depth control roller 6 are arranged on the knife holder 4, and the depth control roller 6 can abut against the material to be cut, and the cutting knife 5 extends downward relative to the depth control roller 6 by a predetermined distance.

[0022] With the present invention, the cutting depth of the blade 5 is controlled by a depth control roller 6, offering more precise control than conventional blades 5. This allows for rapid scoring of the desired depth, particularly when dealing with uneven surfaces such as warped products. The blade is minimally affected by the height of the product, resulting in consistent cutting quality. Furthermore, the blade 5 is driven by a servo rotation mechanism 2, ensuring that the blade's direction remains consistent with the cutting direction, resulting in smoother cutting.

[0023] The servo lift mechanism 1 includes a lift motor 11, a screw 12, a guide rail 13, and a lift base 14. The lift base 14 is provided with a slider 15 and a screw nut 16. The slider 15 is mounted on the guide rail 13, and the screw nut 16 is mounted on the screw 12. The lift motor 11 is connected to the screw 12 and can drive the screw 12 to rotate. The servo lift mechanism 1 can drive the lift base 14 up and down to accommodate cutting materials of varying thicknesses.

[0024] In actual operation, the blade 5 moves very quickly, requiring the servo rotation mechanism 2 to be specially designed with a matching structure to drive the blade 5 to rotate sensitively and precisely. In this embodiment, the rotary transmission element includes a rotary sleeve 22, which is rotatably mounted on the lifting base 14. The rotary sleeve 22 defines a rotation cavity 221, within which the buffer rod 3 and the blade holder 4 are located. The blade holder 4 has a rotation limiter 41 at its upper end, and a positioning sleeve 23 is located within the rotation cavity 221. A predetermined gap is defined between the rotation limiter 41 and the positioning sleeve 23.

[0025] It should be noted that the positioning sleeve 23 can directly use an existing bearing. Since the inner and outer rings of the bearing have extremely high coaxiality, the inner ring of the bearing can be used as the inner wall of the positioning sleeve 23. The diameter of the rotation limiter 41 needs to be smaller than the inner wall of the positioning sleeve 23 to facilitate the rotation limiter 41 to move up and down relative to the positioning sleeve 23. The rotation cavity 221 reserves space for the buffer rod 3.

[0026] Preferably, the buffer rod 3 is fixed to the top of the rotating sleeve 22, and the telescopic portion of the buffer rod 3 is fixedly connected to the rotation limit portion 41; the telescopic portion can be telescoped relative to the buffer rod 3 and rotate synchronously with the buffer rod 3. The rotating transmission member also includes a coupling 24 and a connecting shaft 25, and the rotating motor 21 is fixedly connected to the rotating sleeve 22 via the coupling 24 and the connecting shaft 25. During the cutting process, the rotating motor 21 needs to drive the cutting knife 5 to rotate synchronously to ensure that the blade direction of the cutting knife 5 is always consistent with the moving direction of the cutting knife 5. The rotational power of the rotating motor 21 is transmitted to the cutting knife 5 in sequence through the coupling 24, the connecting shaft 25, the rotating sleeve 22, the buffer rod 3, the knife holder 4, and finally to the cutting knife 5. The addition of the connecting shaft 25 and the rotating sleeve 22 can ensure the strength of the knife holder 4 and prevent the knife holder 4 from wearing out during long-term rotation and lifting, which affects its service life. The addition of the rotating sleeve 22 also reserves installation space for the buffer rod 3, so that the height of the equipment can be compressed and the space occupied is reduced.

[0027] To facilitate adjustment of the cutting depth of the blade 5 of the present application, the blade 5 includes a blade edge 51 and a blade body 52, with reset grooves 53 provided on both sides of the blade body 52. ​​The blade holder 4 includes a blade groove 42 for receiving the blade 5, with an inclined adjustment bolt 43 provided at the top of the blade groove 42 and a transverse locking bolt 44 provided on the side. The blade groove 42 is provided with an elastic column 45 at a position corresponding to the reset groove 53, and the elastic column 45 abuts the bottom of the reset groove 53. The rolling direction of the depth control roller 6 is the same as the cutting direction of the blade 5.

[0028] To adjust the cutting depth, loosen the locking bolt 44 and adjust the depth of the adjustment bolt 43. Because the blade 52 of the cutting blade 5 abuts the elastic column 45, when the adjustment bolt 43 moves upward, the cutting blade 5 is lifted by the elastic column 45 and automatically rises, reducing the cutting depth of the cutting blade 5. When the adjustment bolt 43 moves downward, the cutting blade 5 is pressed downward, increasing the cutting depth of the cutting blade 5. Finally, retighten the locking bolt 44. With this structure, the cutting depth of the cutting blade 5 can be adjusted by simply rotating the adjustment bolt 43, achieving high precision and ease of adjustment.

[0029] Although the structure provided by the embodiment of the present invention can meet the requirements of cutting concave and convex materials to a certain extent, the material should be kept as flat as possible during the cutting process. Therefore, this embodiment can also include a pressure plate 7, which is arranged on the outside of the blade holder 4 through a pressure plate buffer rod 71. During the cutting process, the pressure plate 7 can flatten the material, further improving the cutting quality.

[0030] Another embodiment of the present invention also provides a film cutting machine, which installs the dual-servo pressure wheel follower film cutting machine head described in the previous embodiment through a driving beam, and drives the film cutting machine head to move on the surface of the material to be cut through the driving beam to draw a predetermined track on the protective film on the surface of the material to be cut.

[0031] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A dual servo pressure wheel follower film cutting machine head, characterized in that: It includes servo lifting mechanism, servo rotating mechanism, buffer rod, knife holder, knife and depth control roller; The servo lifting mechanism is used to drive the servo rotating mechanism to lift and lower, and the servo rotating mechanism includes a rotating motor and a rotating transmission member, and the rotating motor, the rotating transmission member, the buffer rod and the knife seat are connected in sequence; The rotary motor can drive the buffer rod and the knife seat to rotate through the rotary transmission member; The cutting knife and the depth control roller are arranged on the knife seat, the depth control roller can abut against the material to be cut, and the cutting knife extends downwardly by a predetermined distance relative to the depth control roller; The rotary transmission member includes a rotary sleeve, the servo lifting mechanism includes a lifting seat, the rotary sleeve is rotatably mounted on the lifting seat; the rotary sleeve is provided with a rotary cavity, the buffer rod and the knife seat are located in the rotary cavity; A rotation limiting portion is provided at the upper end of the knife seat, a positioning sleeve is provided in the rotation cavity, and a preset gap is provided between the rotation limiting portion and the positioning sleeve; The buffer rod is fixed on the top of the rotating sleeve, and the telescopic portion of the buffer rod is fixedly connected to the rotation limiting portion; the telescopic portion can be telescoped relative to the buffer rod and rotate synchronously with the buffer rod.

2. The dual-servo pressure wheel follower film cutting machine head according to claim 1, characterized in that: The rotary transmission member further comprises a coupling and a connecting shaft, and the rotary motor is fixedly connected to the rotary sleeve via the coupling and the connecting shaft.

3. The dual-servo pressure wheel follower film cutting machine head according to claim 1, characterized in that: The cutting knife includes a blade and a blade body, and reset grooves are provided on both sides of the blade body; the knife seat includes a knife groove for inserting the cutting knife, the top of the knife groove is provided with an inclined adjustment bolt, and the side is provided with a horizontal locking bolt; the knife groove is provided with an elastic column corresponding to the reset groove, and the elastic column abuts against the bottom of the reset groove.

4. The dual-servo pressure wheel follower film cutting machine head according to claim 1, characterized in that: The rolling direction of the depth control roller is the same as the cutting direction of the cutting knife.

5. The dual-servo pressure wheel follower film cutting machine head according to claim 1, characterized in that: The servo lifting mechanism also includes a lifting motor, a screw rod and a guide rail. The lifting seat is provided with a slider and a screw rod nut. The slider is arranged on the guide rail, and the screw rod nut is arranged on the screw rod. The lifting motor is connected to the screw rod and can drive the screw rod to rotate.

6. The dual-servo pressure wheel follower film cutting machine head according to claim 1, characterized in that: It also includes a pressure plate, which is arranged on the outer side of the knife seat through a pressure plate buffer rod.

7. A film cutting machine, characterized in that: It comprises a dual-servo pressure wheel follower film cutting machine head as described in any one of claims 1-6.

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