Special equipment for automatically winding protective film

Abstract

The utility model discloses special equipment for automatically winding a protective film, which belongs to the technical field of protective film winding and comprises a base and a winding roller, the top surface of the base is fixedly connected with a group of bilaterally symmetrical support plates, the top surfaces of the support plates are fixedly provided with bearing seats, and the left end and the right end of the winding roller are fixedly connected with rotating shafts respectively. A rotating shaft is fixedly connected to the upper portion of the outer side wall of the winding roller on the right side in a penetrating mode, a motor mounting piece is fixedly connected to the upper portion of the outer side wall of the winding roller on the right side, a gear motor is fixedly connected to the outer side wall of the motor mounting piece, and a pressing mechanism is arranged. The L-shaped rod pushes the pressing roller to enable the pressing roller to abut against the protective film on the winding roller under the elastic acting force, so that the problem that the wound protective film is too loose on the winding roller can be effectively avoided, and the purpose of improving the winding tightness of the protective film is achieved.

Description

Technical Field

[0001] This utility model relates to the field of protective film winding technology, and in particular to a special equipment for automatic winding of protective film. Background Technology

[0002] A screen protector is a thin film specifically designed to be applied to the screen and body of a mobile phone. Its main purpose is to protect the screen from scratches, impacts, oil, dust, and other external damage. It can also reduce blue light radiation to some extent, potentially reducing eye strain, and may offer features such as fingerprint resistance and enhanced touch sensitivity. It is typically made of materials with high light transmittance, strong abrasion resistance, easy application, and resistance to bubbling. It is a common accessory for modern smartphone users, designed to extend the phone's lifespan and maintain its aesthetic appeal and cleanliness.

[0003] In existing technologies, the production of mobile phone protective films requires the use of specialized automatic winding equipment. This equipment is primarily because it can efficiently and systematically wind the protective film, after processes such as coating and drying, into rolls, facilitating subsequent cutting, packaging, and transportation. However, during the automatic winding process, the inherent flexibility of the protective film results in gaps between the wound films, causing them to be too loose on the winding rollers. Furthermore, the difficulty in limiting the winding of the protective film on the rollers according to its width during winding leads to positional shifts, resulting in uneven film on the winding rollers. When these problems occur, manual intervention is required, impacting not only the winding effect and efficiency but also subsequent unwinding processes. Utility Model Content

[0004] The main purpose of this utility model is to provide a special automatic winding equipment for protective film, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An automatic protective film winding device includes a base and a winding roller. A set of symmetrical support plates is fixedly connected to the top surface of the base, and bearing seats are fixedly installed on the top surface of the support plates. Rotating shafts are fixedly connected to the left and right ends of the winding roller, and the rotating shafts are inserted and fixedly connected to the bearing seats. A motor mounting plate is fixedly connected to the upper part of the outer wall of the right-side winding roller, and a reduction motor is fixedly connected to the outer wall of the motor mounting plate. The output end of the reduction motor is fixedly connected to the rotating shaft on the right end. A pressing mechanism is provided below the winding roller, and the pressing mechanism includes a fixed rod, a compression spring, an L-shaped rod, and a pressing roller. The fixed rod is fixedly connected to... The L-shaped rod is attached to the side wall of the support plate, and the compression spring is sleeved on the outside of the fixed rod. The L-shaped rod is movably connected to the fixed rod through the connecting hole on the top surface of the vertical part and is fixedly connected to the top of the compression spring. The pressure roller is movably connected between the left and right symmetrical L-shaped rods through the first rotating rods at both ends. A limiting mechanism is also provided above the take-up roller. The limiting mechanism includes a top plate, a bidirectional adjusting screw and a limiting baffle. The top plate is fixedly connected to the top of the take-up roller through the fixed plate on the side wall. The bidirectional adjusting screw is movably connected to the top surface of the top plate through the second rotating rods at both ends. The two limiting baffles are movably connected to the bidirectional adjusting screw through the connecting block on the top surface.

[0007] Preferably, a vertical opening is provided on the side wall of the support plate.

[0008] Preferably, the fixing rod is fixedly installed inside the vertical opening, and a compression spring is fitted on the rod body of the fixing rod. The bottom end of the compression spring is fixedly installed inside the bottom end of the vertical opening, and an L-shaped rod is fixedly installed on the top end of the compression spring. A connecting hole is opened on the top surface of the horizontal part of the L-shaped rod, and it is movably installed together with the fixing rod through the connecting hole. A first rotating hole is also opened on the side wall of the vertical part of the L-shaped rod.

[0009] Preferably, a first rotating rod is fixedly installed at each of the left and right ends of the pressing roller, and the first rotating rod is movably installed in the first rotating hole.

[0010] Preferably, the fixing plate is fixedly installed above the outer side wall of the left support plate, and a top plate is fixedly installed on the top surface of the fixing plate.

[0011] Preferably, the top surface of the top plate has a horizontal opening, and the front and rear side walls inside the horizontal opening are respectively provided with sliding grooves, and the left and right side walls inside the horizontal opening are respectively provided with second rotating holes.

[0012] Preferably, a second rotating rod is fixedly installed at each of the left and right ends of the bidirectional adjusting screw, and the second rotating rod is movably installed in the second rotating hole. An adjusting handwheel is also fixedly installed on the outer end of the second rotating rod on the right side.

[0013] Preferably, the limiting baffle is provided in a symmetrical set, and the bottom surface of the limiting baffle is provided with an arc-shaped opening. A connecting block is fixedly installed on the top surface of the limiting baffle, and the connecting block is movably installed in the transverse opening. A screw hole is provided on the side wall of the connecting block and is threadedly connected to the bidirectional adjusting screw through the screw hole. A slider is also fixedly installed on the front and rear walls of the connecting block and movably installed in the slide groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the clamping mechanism, as the take-up roller continuously winds the protective film, utilizes the elastic force of the spring outside the fixed rod. The L-shaped rod pushes the clamping roller, causing it to press the protective film firmly against the take-up roller under elastic force. This effectively prevents the wound protective film from becoming too loose on the take-up roller, thus improving the tightness of the protective film winding. Furthermore, in conjunction with the upper limit mechanism, depending on the width of the protective film to be wound, rotating the adjusting handwheel drives the bidirectional adjusting screw via the second rotating rod, causing the symmetrical left and right limit stops to rotate. The protective film is moved relative to the other side by means of the screw holes on the side wall of the top connecting block, along the bidirectional adjusting screw, until the distance between the limiting baffles is the same as the width of the protective film. After the protective film is wound onto the take-up roller, the limiting baffles restrict and block the left and right ends of the protective film on the take-up roller, which can effectively prevent the protective film from shifting to one side during continuous winding, thus ensuring the neatness of the protective film after winding. This not only improves the winding effect and efficiency of the protective film, but also brings convenience to subsequent protective film unwinding and other operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the disassembled structure of the device according to this utility model;

[0018] Figure 3 This is a structurally disassembled schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the top plate of this utility model;

[0020] Figure 5 This is a structural breakdown diagram of the limiting mechanism of this utility model.

[0021] In the diagram: 1. Base; 2. Support plate; 3. Bearing seat; 4. Take-up roller; 5. Rotating shaft; 6. Motor mounting plate; 7. Gear motor; 8. Pressing mechanism; 9. Limiting mechanism; 10. Vertical opening; 11. Fixing rod; 12. Compression spring; 13. L-shaped rod; 14. Connecting hole; 15. First rotating hole; 16. Pressing roller; 17. First rotating rod; 18. Fixing plate; 19. Top plate; 20. Horizontal opening; 21. Slide groove; 22. Second rotating hole; 23. Bidirectional adjusting screw; 24. Second rotating rod; 25. Adjusting handwheel; 26. Limiting stop; 27. Arc-shaped opening; 28. Connecting block; 29. ​​Screw hole; 30. Slider. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1 - Figure 5 As shown, the special equipment for automatic winding of protective film includes a base 1 and a winding roller 4. A set of left and right symmetrical support plates 2 are fixedly connected to the top surface of the base 1, and a bearing seat 3 is fixedly installed on the top surface of the support plate 2. Rotating shafts 5 are fixedly connected to the left and right ends of the winding roller 4, and the rotating shafts 5 are inserted and fixedly connected to the bearing seats 3. A motor mounting plate 6 is also fixedly connected to the upper side of the outer wall of the right winding roller 4, and a reduction motor 7 is fixedly connected to the outer wall of the motor mounting plate 6. The output end of the reduction motor 7 is fixedly connected to the rotating shaft 5 on the right end.

[0024] The winding principle of this automatic winding device is as follows:

[0025] After the geared motor 7 installed on the outer wall of the motor mounting plate 6 is turned on, the output end of the geared motor 7 will drive the rotating shaft 5 installed at the left and right ends of the take-up roller 4 to rotate in the bearing seat 3 installed on the top surface of the support plate 2 symmetrically on the top surface of the base 1. This bearing seat 3 is a bearing seat 3 with a rotating bearing, and the rotating shaft 5 will drive the take-up roller 4 to rotate, so that the take-up roller 4 completes the automatic winding of the protective film during the rotation process.

[0026] A pressing mechanism 8 is provided below the take-up roller 4. The pressing mechanism 8 includes a fixed rod 11, a compression spring 12, an L-shaped rod 13, and a pressing roller 16. The fixed rod 11 is fixedly connected to the side wall of the support plate 2, and the compression spring 12 is sleeved on the outside of the fixed rod 11. The L-shaped rod 13 is movably connected to the fixed rod 11 through the connecting hole 14 on the top surface of the vertical part and is fixedly connected to the top of the compression spring 12. The pressing roller 16 is movably connected between the left and right symmetrical L-shaped rods 13 through the first rotating rods 17 at both ends. The pressing mechanism 8 can make the protective film tightly wound on the take-up roller 4 to prevent the protective film from becoming loose on the take-up roller 4.

[0027] A limiting mechanism 9 is also provided above the take-up roller 4. The limiting mechanism 9 includes a top plate 19, a bidirectional adjusting screw 23, and limiting baffles 26. The top plate 19 is fixedly connected to the top of the take-up roller 4 through a fixing plate 18 on the side wall. The bidirectional adjusting screw 23 is movably connected to the top surface of the top plate 19 through the second rotating rods 24 at both ends. The two limiting baffles 26 are movably connected to the bidirectional adjusting screw 23 through the connecting block 28 on the top surface. By limiting and blocking the two ends of the protective film on the take-up roller 4 through the limiting mechanism 9, the problem of displacement of the protective film on the take-up roller 4 can be prevented.

[0028] like Figure 2 As shown, a vertical opening 10 is provided on the side wall of the support plate 2, and the vertical opening 10 allows the lateral part of the L-shaped rod 13 to move inside it.

[0029] like Figure 3 As shown, the fixing rod 11 is fixedly installed inside the vertical opening 10, and a compression spring 12 is fitted on the rod body of the fixing rod 11. The bottom end of the compression spring 12 is fixedly installed inside the bottom end of the vertical opening 10, and an L-shaped rod 13 is fixedly installed on the top end of the compression spring 12. A connecting hole 14 is opened on the top surface of the horizontal part of the L-shaped rod 13, and it is movably installed together with the fixing rod 11 through the connecting hole 14. A first rotating hole 15 is also opened on the side wall of the vertical part of the L-shaped rod 13. When the protective film on the winding roller 4 continues to wind and thickens, the L-shaped rod 13 will be subjected to the squeezing force from the pressure roller 16. At this time, the L-shaped rod 13 will move downward through the connecting hole 14 opened on the top surface of the horizontal part along the fixing rod 11 inside the vertical opening 10, and force the compression spring 12 to perform a tightening operation.

[0030] like Figure 3 As shown, the left and right ends of the pressure roller 16 are respectively fixedly installed with first rotating rods 17, and the first rotating rods 17 are movably installed in the first rotating holes 15. Under the reverse elastic extension force of the compression spring 12, the pressure roller 16 will elastically press the protective film against the take-up roller 4 to prevent the protective film from becoming loose on the take-up roller 4. At the same time, under the action of the protective film's winding movement, the pressure roller 16 will also be driven to rotate. The first rotating rods 17 at both ends of the pressure roller 16 will rotate within the first rotating holes 15 opened on the side wall of the vertical part of the L-shaped rod 13. Through the rotatable design of the pressure roller 16, the problem of wear on the protective film can be avoided.

[0031] like Figure 4 As shown, the fixing plate 18 is fixedly installed on the upper side wall of the left support plate 2, and the top plate 19 is fixedly installed on the top surface of the fixing plate 18. The fixing plate 18 and the top plate 19 are used to support the overall limiting mechanism 9.

[0032] like Figure 4 As shown, a transverse opening 20 is provided on the top surface of the top plate 19. The transverse opening 20 is used to cooperate with the connecting block 28 to move laterally inside it. Slide grooves 21 are provided on the front and rear side walls inside the transverse opening 20. The slide grooves 21 are used to cooperate with the slider 30 to achieve rotation operation. Second rotation holes 22 are provided on the left and right side walls inside the transverse opening 20. The second rotation holes 22 are used to cooperate with the second rotation rod 24 to achieve rotation operation.

[0033] like Figure 5 As shown, the left and right ends of the bidirectional adjusting screw 23 are respectively fixedly installed with second rotating rods 24, and the second rotating rods 24 are movably installed in the second rotating hole 22. An adjusting handwheel 25 is also fixedly installed on the outer end of the right second rotating rod 24. After manually rotating the adjusting handwheel 25, the second rotating rod 24 can be driven to rotate in the second rotating hole 22, and then the bidirectional adjusting screw 23 can be driven to rotate through the second rotating rod 24.

[0034] like Figure 5 As shown, a set of symmetrical limit baffles 26 are provided, and an arc-shaped opening 27 is provided on the bottom surface of the limit baffles 26. A connecting block 28 is fixedly installed on the top surface of the limit baffles 26, and the connecting block 28 is movably installed in the transverse opening 20. A screw hole 29 is provided on the side wall of the connecting block 28, and it is threadedly connected to the bidirectional adjusting screw 23 through the screw hole 29. A slider 30 is fixedly installed on the front and rear walls of the connecting block 28 and movably installed in the slide groove 21. When the bidirectional adjusting screw 23 rotates, the connecting block 28 installed on the top surface of the symmetrical limit baffles 26... 8. The slider 30 moves relative to the protective film by means of the screw hole 29 on the side wall and the bidirectional adjusting screw 23. The slider 30 slides in the groove 21 until the distance between the limiting baffles 26 is the same as the width of the protective film. Therefore, when the protective film is wound on the take-up roller 4, the limiting baffles 26 limit and block the two ends of the protective film, which can prevent the protective film from shifting on the take-up roller 4. The arc-shaped opening 27 on the bottom surface of the limiting baffle 26 is used to fit the take-up roller 4 and avoid the problem of scratches and wear caused by friction between the take-up roller 4 and the limiting baffle 26.

[0035] The operating principle of the automatic winding equipment for this protective film, in conjunction with the pressing mechanism 8 and the limiting mechanism 9, is as follows:

[0036] Before winding up the protective film, adjust the distance between the left and right symmetrical limiting baffles 26 according to the width of the protective film. During adjustment, rotate the adjusting handwheel 25 on the right side of the top plate 19 mounted on the top surface of the fixed plate 18. The adjusting handwheel 25 will drive the second rotating rod 24 to rotate in the second rotating hole 22. The second rotating rod 24 will drive the bidirectional adjusting screw 23 to rotate in the transverse opening 20, so that the left and right symmetrical connecting blocks 28 will move relative to each other through the screw holes 29 opened on the side wall and along the bidirectional adjusting screw 23 in the transverse opening 20. The sliders 30 mounted on the front and rear walls of the connecting blocks 28 will slide in the slide groove 21. At this time, the left and right symmetrical limiting baffles 26 on the bottom surface of the top plate 19 will be driven by the connecting blocks 28 on the top surface. Perform synchronous relative movement until the distance between the limit baffles 26 is the same as the width of the protective film to be wound up. Turn on the geared motor 7 installed on the outer wall of the motor mounting plate 6. The geared motor 7 will drive the output end to drive the rotating shaft 5 to rotate in the bearing seat 3 installed on the top surface of the support plate 2. The rotating shaft 5 will drive the winding roller 4 to rotate. When the winding roller 4 rotates, it will wind up the protective film. During the winding process, because the left and right symmetrical limit baffles 26 are located above the winding roller 4 and placed on the left and right ends of the protective film being wound up on the winding roller 4, the limit baffles 26 can effectively prevent the protective film from shifting to one side during the continuous winding process, so as to ensure the neatness of the protective film after winding.

[0037] Meanwhile, the protective film is continuously wound onto the winding roller 4, and as the protective film roll gradually thickens, it will squeeze the pressure roller 16 below. Under pressure, the pressure roller 16 will move downwards, and the L-shaped rod 13 will move downwards synchronously via the first rotating rods 17 at both ends. The L-shaped rod 13 will move downwards through the connecting hole 14 on the top surface of the transverse portion along the vertical opening 10 on the side wall of the support plate 2 of the fixed rod 11, forcing the compression spring 12 fitted outside the fixed rod 11 to tighten. At the same time, the compression spring 12 will also apply a reverse elastic force to the pressure roller 16 via the L-shaped rod 13, allowing the pressure roller 16 to maintain the protective film's elasticity during continuous winding. The protective film is pressed and wound onto the take-up roller 4, and the protective film will also drive the pressure roller 16 to rotate under the action of the test roll movement. When rotating, the first rotating rods 17 at the left and right ends of the pressure roller 16 will rotate in the first rotating holes 15 opened on the side wall of the vertical part of the L-shaped rod 13. As the thickness of the protective film roll on the take-up roller 4 gradually increases, the pressure roller 16 will also change its position accordingly to ensure effective winding of the protective film. This can effectively avoid the problem of the protective film being too loose on the take-up roller 4 after winding, so as to improve the tightness of the protective film winding. This not only improves the winding effect and winding efficiency of the protective film, but also brings convenience to subsequent protective film unwinding and other operations.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, various improvements can be made to it without departing from the scope of the present utility model, and components can be replaced with equivalents or some technical features can be replaced with equivalents. All such improvements within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special equipment for automatic winding of protective film, comprising a base (1) and a winding roller (4), wherein a set of left and right symmetrical support plates (2) are fixedly connected to the top surface of the base (1), and a bearing seat (3) is fixedly installed on the top surface of the support plate (2); a rotating shaft (5) is fixedly connected to the left and right ends of the winding roller (4), and the rotating shaft (5) is inserted and fixedly connected to the bearing seat (3); a motor mounting plate (6) is fixedly connected to the upper side of the outer wall of the right winding roller (4), and a reduction motor (7) is fixedly connected to the outer wall of the motor mounting plate (6); the output end of the reduction motor (7) is fixedly connected to the rotating shaft (5) on the right end; characterized in that: A pressing mechanism (8) is provided below the winding roller (4), and the pressing mechanism (8) includes a fixed rod (11), a compression spring (12), an L-shaped rod (13), and a pressing roller (16). The fixed rod (11) is fixedly connected to the side wall of the support plate (2), and the compression spring (12) is sleeved on the outside of the fixed rod (11). The L-shaped rod (13) is movably connected to the fixed rod (11) through the connecting hole (14) on the top surface of the vertical part and is fixedly connected to the top of the compression spring (12). The pressing roller (16) is movably connected to the first rotating rod (17) at both ends. Between the left and right symmetrical L-shaped rods (13), a limiting mechanism (9) is also provided above the take-up roller (4). The limiting mechanism (9) includes a top plate (19), a bidirectional adjusting screw (23), and a limiting baffle (26). The top plate (19) is fixedly connected to the top of the take-up roller (4) through a fixing plate (18) on the side wall. The bidirectional adjusting screw (23) is movably connected to the top surface of the top plate (19) through the second rotating rods (24) at both ends. The two limiting baffles (26) are movably connected to the bidirectional adjusting screw (23) through the connecting block (28) on the top surface.

2. The special equipment for automatic winding of protective film according to claim 1, characterized in that: A vertical opening (10) is provided on the side wall of the support plate (2).

3. The special equipment for automatic winding of protective film according to claim 2, characterized in that: The fixing rod (11) is fixedly installed inside the vertical opening (10), and a compression spring (12) is fitted on the rod body of the fixing rod (11). The bottom end of the compression spring (12) is fixedly installed inside the bottom end of the vertical opening (10), and an L-shaped rod (13) is fixedly installed on the top end of the compression spring (12). A connecting hole (14) is opened on the top surface of the horizontal part of the L-shaped rod (13), and it is movably installed together with the fixing rod (11) through the connecting hole (14). A first rotating hole (15) is also opened on the side wall of the vertical part of the L-shaped rod (13).

4. The special equipment for automatic winding of protective film according to claim 3, characterized in that: The left and right ends of the pressing roller (16) are respectively fixedly installed with a first rotating rod (17), and the first rotating rod (17) is movably installed in the first rotating hole (15).

5. The special equipment for automatic winding of protective film according to claim 4, characterized in that: The fixing plate (18) is fixedly installed on the outer side wall of the left support plate (2), and a top plate (19) is fixedly installed on the top surface of the fixing plate (18).

6. The special equipment for automatic winding of protective film according to claim 5, characterized in that: The top surface of the top plate (19) is provided with a transverse opening (20), and the front and rear side walls of the transverse opening (20) are respectively provided with sliding grooves (21), and the left and right side walls of the transverse opening (20) are respectively provided with second rotating holes (22).

7. The special equipment for automatic winding of protective film according to claim 6, characterized in that: The two-way adjusting screw (23) is fixedly installed with a second rotating rod (24) at its left and right ends respectively, and the second rotating rod (24) is movably installed in the second rotating hole (22). An adjusting handwheel (25) is also fixedly installed on the outer end of the second rotating rod (24) on the right end.

8. The special equipment for automatic winding of protective film according to claim 7, characterized in that: The limiting baffle (26) is provided with a set of left and right symmetrical ones, and the bottom surface of the limiting baffle (26) is provided with an arc-shaped opening (27). The top surface of the limiting baffle (26) is fixedly installed with a connecting block (28), and the connecting block (28) is movably installed in the transverse opening (20). The side wall of the connecting block (28) is provided with a screw hole (29) and is threadedly connected to the bidirectional adjusting screw (23) through the screw hole (29). The front and rear walls of the connecting block (28) are also fixedly installed with sliders (30) and movably installed in the slide groove (21).

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