Die-cutting machine for producing mobile phone protective film

Abstract

The utility model discloses a die-cutting machine for producing a mobile phone protective film, relates to the technical field of die-cutting machines, and solves the problem of unstable quality in the production process of the mobile phone protective film in the prior art. Comprising a machine body and a discharging mechanism arranged at one end of the machine body, and a first conveying mechanism, a longitudinal cutting mechanism, a transverse cutting mechanism, a winding mechanism and a second conveying device are sequentially arranged on the machine body; the longitudinal cutting mechanism comprises a first support, and a circular knife is rotationally connected to the first support. The transverse cutting mechanism comprises a second support, a driving air cylinder drives a second sliding plate to slide up and down in the second support, and the lower end of the second sliding plate is connected with a special-angle cutter. The winding mechanism comprises a winding roller, the winding roller is connected with the machine body through a connecting plate, and a driving motor drives the winding roller to rotate. The device has the beneficial effects that the size precision is high, the knife mark width is small, bubbles are few, slipping parts can be wound, and the quality stability in the production process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting machines, in particular to a die-cutting machine for producing mobile phone protective films. Background Art

[0002] With the rapid development of the smartphone market, mobile phone protective films, as an important accessory product, are used to protect the screen surface of smartphones, and the demand continues to grow. In the production process of mobile phone protective films, the die-cutting machine precisely controls the movement trajectory of the tool to cut the protective film material into shapes and sizes that meet the product requirements to meet the needs of different mobile phone models and screen sizes.

[0003] The current mobile phone film cutting machine structure is generally similar to the high-precision film cutting machine disclosed in the patent application number "CN202322348790.X". By designing the limit plate, adjustment assembly, transmission screw and roller and other structures on the film cutting platform, the limit plate can be effectively used to form an area on the film cutting platform to limit the position of the square film body. It can ensure that when the square film body is driven by the film transmission wheel to the inside or outside of the film cutting machine body, the left and right positions of the square film body will not be offset, that is, it can ensure that the square film body can always move in the limited area, avoiding position deviation during movement and causing position deviation with the cutting knife assembly, thereby ensuring the stability and accurate cutting of the square film body. At the same time, with the movable limit plate, the left and right positions of the limit plate can be adjusted, and then the width of the area limiting the square film body can be adjusted, so that the limit structure can limit the position of square film bodies of different sizes. However, the existing flat knife punching blade has a strong extrusion force on the material, which causes severe extrusion of the material, resulting in wide knife marks and easy generation of bubbles after extrusion; the relative position of the circular knife punching material and the blade is prone to slippage, resulting in low dimensional stability; this in turn leads to unstable quality during the production process of mobile phone protective films.

[0004] Therefore, the utility model proposes a die-cutting machine for producing a mobile phone protective film, which is used to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a die-cutting machine for producing mobile phone protective films, which is used to solve the problem of unstable quality in the production process of mobile phone protective films in the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A die-cutting machine for producing mobile phone protective films, comprising a machine body and a feeding mechanism arranged at one end of the machine body, wherein a first conveying mechanism, a longitudinal cutting mechanism, a transverse cutting mechanism, a winding mechanism and a second conveying device are sequentially arranged on the machine body; the longitudinal cutting mechanism comprises a first bracket, on which a circular knife is rotatably connected; the transverse cutting mechanism comprises a second bracket, the upper end of the second bracket is connected to a driving cylinder, the driving cylinder drives a second sliding plate to slide up and down in the second bracket, the lower end of the second sliding plate is connected to a special angle cutter, the knife body of the special angle cutter is rectangular, and a short distance blade is provided at the lower end of the knife body; the winding mechanism comprises a winding roller, which is connected to the machine body through a connecting plate, the connecting plate is connected to a driving motor, and the driving motor drives the winding roller to rotate; the upper end of the second conveying device is connected to a pressing roller, and the pressing roller is arranged between the winding roller and the transverse cutting mechanism.

[0008] By adopting the above technical solution, the cut protective film product is sent to the winding mechanism for winding. The winding mechanism can wind up the coiled material at the slipping part, and the cut finished product enters the second conveying device, ensuring the stability of the quality of the production process.

[0009] Furthermore, the machine body is rotatably connected to a support assembly at the end corresponding to the discharge mechanism, and the support assembly includes a support frame, and a plurality of support rollers are evenly rotatably connected to the support frame. The machine body is connected to a guide frame, and the support frame is provided with a guide groove corresponding to the guide frame, and the guide frame is threadedly connected with a positioning bolt at a position corresponding to the guide groove.

[0010] By adopting the above technical solution, the coiled material can be guided to avoid creases, and the position of the support frame can be adjusted by positioning bolts to adapt to different coiled materials.

[0011] Furthermore, the support rollers are all provided with anti-slip grooves.

[0012] By adopting the above technical solution, the coil can be transported stably and slipping can be avoided.

[0013] Furthermore, the unloading mechanism includes an unloading frame and an unloading roller. The unloading frame is also connected to a tensioning roller. The tensioning roller is arranged between the machine body and the unloading roller. The unloading roller is detachably connected to the unloading frame.

[0014] By adopting the above technical solution, it is possible to ensure that the coil maintains a certain tension during the transmission process to avoid relaxation.

[0015] Furthermore, the upper end of the first conveying mechanism is slidably connected to a third conveying mechanism, and a flattening mechanism is provided between the first conveying mechanism and the longitudinal cutting mechanism.

[0016] By adopting the above technical solution, the coiled material can be flattened to ensure that it can remain flat during the subsequent cutting process, thereby improving the cutting accuracy.

[0017] Furthermore, the third transmission mechanism is threadedly connected to a screw rod, the screw rod is rotationally connected to the first transmission mechanism, and a rotating handle is connected to the end of the screw rod.

[0018] By adopting the above technical solution, the rotating handle of the screw rod can be rotated to drive the third conveying mechanism to slide up and down along the first conveying mechanism, thereby adjusting the height or position of the coiled material to adapt to coils of different thicknesses.

[0019] Furthermore, the special angle cutter is detachably connected to the lower end of the second sliding plate.

[0020] By adopting the above technical solution, it is possible to easily replace the cutter with a special angle, thereby ensuring the cutting accuracy.

[0021] In summary, compared with the prior art, the utility model has the following beneficial effects:

[0022] The special angle cutter of the utility model can realize the cutting of mobile phone protective film without bubbles and extrusion knife marks, which meets the appearance and later attachment effect of the mobile phone protective film. The blade is thin and sharp, the knife mark width is small, the extrusion of the material and the occurrence of bubbles are reduced, and the dimensional accuracy is high; when the circular knife is punching, the blade contacts the material in a point or line force manner, which reduces the extrusion force on the material, the knife mark width is small, and there are few bubbles; when the coil and the blade slip, the cut protective film product is sent to the winding mechanism for winding, and the winding mechanism can wind up the coil at the slipping position, and the cut finished product enters the second conveying device, ensuring the stability of the quality of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a vertical schematic diagram of the utility model Figure 1 ;

[0024] Figure 2 This is a vertical schematic diagram of the utility model Figure 2 ;

[0025] Figure 3 It is the front view of the utility model;

[0026] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A;

[0027] In the figure: 1. machine body; 2. unloading rack; 3. unloading roller; 4. tensioning roller; 5. supporting assembly; 6. supporting rack; 7. supporting roller; 8. guide rack; 9. guide groove; 10. positioning bolt; 11. anti-slip groove; 12. first transmission mechanism; 13. third transmission mechanism; 14. screw rod; 15. rotating handle; 16. flattening mechanism; 17. second transmission device; 18. first bracket; 19. circular knife; 20. second bracket; 21. driving cylinder; 22. second sliding plate; 23. special angle cutter; 24. winding roller; 25. connecting plate; 26. driving motor; 27. pressing roller. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0029] In this application, the directions or positional relationships indicated by the terms "upper", "inner", "outer", "middle", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0030] like Figure 1 As shown, a die-cutting machine for producing mobile phone protective films includes a machine body 1 and a feeding mechanism arranged at one end of the machine body 1, and the machine body 1 is sequentially provided with a first conveying mechanism 12, a longitudinal cutting mechanism, a transverse cutting mechanism, a winding mechanism and a second conveying device 17; the feeding mechanism includes a feeding frame 2 and a feeding roller 3, and the feeding frame 2 is also connected with a tensioning roller 4, and the tensioning roller 4 is arranged between the machine body 1 and the feeding roller 3, and the feeding roller 3 is detachably connected to the feeding frame 2.

[0031] The end of the machine body 1 corresponding to the unloading mechanism is rotatably connected with a support assembly 5, and the support assembly 5 includes a support frame 6, and a plurality of support rollers 7 are evenly rotatably connected to the support frame 6, and the support rollers 7 are all provided with anti-slip grooves 11. The machine body 1 is connected with a guide frame 8, and the support frame 6 is provided with a guide groove 9 corresponding to the guide frame 8, and the guide frame 8 is threadedly connected with a positioning bolt 10 at the position corresponding to the guide groove 9. In this way, the coil can be guided to avoid folds, and the position of the support frame 6 can be adjusted by the positioning bolt 10 to adapt to different coils.

[0032] like Figure 2As shown, the upper end of the first conveying mechanism 12 is slidably connected to the third conveying mechanism 13, and a flattening mechanism 16 is arranged between the first conveying mechanism 12 and the longitudinal cutting mechanism. The third conveying mechanism 13 is threadedly connected to the screw rod 14, and the screw rod 14 is rotatably connected to the first conveying mechanism 12, and a rotating handle 15 is connected to the end of the screw rod 14. By rotating the rotating handle 15 of the screw rod 14, the third conveying mechanism 13 can be driven to slide up and down along the first conveying mechanism 12, so that the height or position of the coil can be adjusted, so as to adapt to coils of different thicknesses, and then the third conveying mechanism 13 can flatten the coil, and then the flattening mechanism 16 can further flatten the coil, ensuring that it can maintain flatness in the subsequent cutting process, thereby improving the cutting accuracy.

[0033] like Figure 3 and Figure 4 As shown, the longitudinal cutting mechanism includes a first bracket 18, and a circular knife 19 is rotatably connected to the first bracket 18; and then during punching, the blade contacts the material in a point or line force mode, which reduces the extrusion force on the material, the blade mark width is small, and there are few bubbles. The cross-cutting mechanism includes a second bracket 20, and the upper end of the second bracket 20 is connected to a driving cylinder 21, and the driving cylinder 21 drives the second sliding plate 22 to slide up and down in the second bracket 20. The lower end of the second sliding plate 22 is connected to a special angle cutter 23, and the blade body of the special angle cutter 23 is set in a rectangular shape, and a short distance blade is opened at the lower end of the blade body; and then it can achieve the cutting of mobile phone protective film without bubbles and extrusion blade marks, which meets the appearance and later attachment effect of the mobile phone protective film, the blade is thin and sharp, the blade mark width is small, the extrusion of the material is reduced, and the occurrence of bubbles is reduced, and the size accuracy is high. The special angle cutter 23 is detachably connected to the lower end of the second sliding plate 22. It is convenient to replace the special angle cutter 23, and the cutting accuracy is guaranteed.

[0034] The winding mechanism includes a winding roller 24, which is connected to the machine body 1 through a connecting plate 25, and a driving motor 26 is connected to the connecting plate 25, and the driving motor 26 drives the winding roller 24 to rotate; then the cut protective film product is sent to the winding mechanism for winding, and when the blade of the circular knife 19 slips, the winding mechanism can roll up the coiled material at the slipping part, and the finished product after cutting enters the second conveying device 17, ensuring the stability of the quality of the production process. The upper end of the second conveying device 17 is connected to a pressing roller 27, which is arranged between the winding roller 24 and the cross-cutting mechanism. It can press the cut protective film to avoid affecting the cutting of the coiled material.

[0035] The working process of the utility model is:

[0036] First, the cell phone protective film coil to be cut is placed on the discharge roller 3 and fixed on the discharge rack 2, and then guided to the support assembly 5, wherein the support rack 6 is connected to the machine body 1 through the guide rack 8, and then the coil enters the first conveying mechanism 12 from the support assembly 5, and then the third conveying mechanism 13 can flatten the coil, and then the flattening mechanism 16 can further flatten the coil to ensure that it can maintain flatness in the subsequent cutting process, thereby improving the cutting accuracy. Then the coil enters the longitudinal cutting mechanism for longitudinal cutting, and the coil obtains a protective film with segmented longitudinal cutting according to the circular knife 19, and then enters the cross-cutting mechanism for cross-cutting to obtain a protective film product of a specific size. The cut protective film product is sent to the winding mechanism for winding. When the blade of the circular knife 19 slips, the winding mechanism can wind up the coil at the slipping part, and the finished product after cutting enters the second conveying device 17 and is conveyed to the next work process.

Claims

1. A die-cutting machine for producing mobile phone protective films, comprising a machine body (1) and a material discharge mechanism arranged at one end of the machine body (1), characterized in that: The machine body (1) is provided with a first conveying mechanism (12), a longitudinal cutting mechanism, a transverse cutting mechanism, a winding mechanism and a second conveying device (17) in sequence; the longitudinal cutting mechanism comprises a first bracket (18), and a circular knife (19) is rotatably connected to the first bracket (18); the transverse cutting mechanism comprises a second bracket (20), and the upper end of the second bracket (20) is connected to a driving cylinder (21), and the driving cylinder (21) drives a second sliding plate (22) to slide up and down in the second bracket (20), and the lower end of the second sliding plate (22) is connected to a special angle A cutter (23), wherein the blade body of the special angle cutter (23) is rectangular, and a short-distance blade is provided at the lower end of the blade body; the winding mechanism comprises a winding roller (24), and the winding roller (24) is connected to the machine body (1) via a connecting plate (25), and a driving motor (26) is connected to the connecting plate (25), and the driving motor (26) drives the winding roller (24) to rotate; the upper end of the second conveying device (17) is connected to a pressing roller (27), and the pressing roller (27) is arranged between the winding roller (24) and the cross-cutting mechanism.

2. The die-cutting machine for producing mobile phone protective film according to claim 1, characterized in that: The machine body (1) is rotatably connected to an end portion of the discharge mechanism, the support assembly comprising a support frame (6), a plurality of support rollers (7) are evenly rotatably connected to the support frame (6), a guide frame (8) is connected to the machine body (1), a guide groove (9) is provided on the support frame (6) corresponding to the guide frame (8), and a positioning bolt (10) is threadedly connected to the position of the guide frame (8) corresponding to the guide groove (9).

3. The die-cutting machine for producing a mobile phone protective film according to claim 2, characterized in that: The support rollers (7) are all provided with anti-slip grooves (11).

4. The die-cutting machine for producing mobile phone protective film according to claim 3, characterized in that: The unloading mechanism comprises an unloading frame (2) and an unloading roller (3); the unloading frame (2) is also connected to a tensioning roller (4); the tensioning roller (4) is arranged between the machine body (1) and the unloading roller (3); the unloading roller (3) is detachably connected to the unloading frame (2).

5. The die-cutting machine for producing mobile phone protective film according to claim 1, characterized in that: The upper end of the first conveying mechanism (12) is slidably connected to a third conveying mechanism (13), and a flattening mechanism (16) is provided between the first conveying mechanism (12) and the longitudinal cutting mechanism.

6. The die-cutting machine for producing mobile phone protective film according to claim 5, characterized in that: The third transmission mechanism (13) is threadedly connected to a screw rod (14), the screw rod (14) is rotationally connected to the first transmission mechanism (12), and a rotating handle (15) is connected to the end of the screw rod (14).

7. The die-cutting machine for producing mobile phone protective film according to claim 1, characterized in that: The special angle cutter (23) is detachably connected to the lower end of the second sliding plate (22).

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