Feeding device of automatic protective film cutting line

Abstract

The utility model relates to the technical field of protective film production, and discloses a feeding device of an automatic protective film cutting line, which comprises a mounting frame and an auxiliary conveying component arranged on one side of the mounting frame, and further comprises a workbench bolted on one side of the surface of the mounting frame, through cooperation of the mounting groove, the lifting mechanism and the auxiliary frame, the second guide roller can be driven by one power source to ascend and descend, a control system does not need to be used for processing the synchronization and coordination problems among a plurality of power sources, and therefore control difficulty and complexity are reduced, production cost can be reduced, the requirements of modern industry for energy conservation and environmental protection are met, and popularization and application are facilitated. Under the cooperation of the installation frame, the linkage mechanism and the limiting plate, it can be guaranteed that the protective film is always kept at the stable position in the conveying process, cutting errors caused by deviation are avoided, the cutting precision of products is improved, frequent shutdown for adjusting the position of the protective film is not needed, and therefore the production efficiency is greatly improved, and the production period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film production, in particular to a feeding device for an automatic cutting line of a protective film. Background Art

[0002] With the rapid development of people's living needs and technological progress, protective films can be divided into digital product protective films, car protective films, household protective films, food preservation protective films, etc. according to their uses. With the popularization of digital products such as mobile phones in China, protective films have gradually become a general term for screen protective films, and their functions in the field of screen protective films are also varied. The materials have evolved from the earliest PP materials to the popular AR materials today. After more than 5 years of development, they have gradually been accepted by the majority of mobile phone users. The protective film needs to be transported using a feeding device during processing and cutting.

[0003] Some feeding devices currently used usually use two power sources (such as electric push rods, hydraulic rods, etc.) to adjust the guide roller when adjusting the tension of the protective film. When the two power sources work at the same time, it is necessary to ensure the synchronization between them. If the synchronization is insufficient, it may cause the rotation speed of the guide roller to be inconsistent, thereby affecting the tension adjustment effect of the protective film. The two power sources will increase energy consumption and increase production costs. In addition, some feeding devices do not have the function of limiting the protective film during transportation. It may be offset due to various factors in the transportation process (such as wind force, equipment vibration, etc.). This offset will cause the position of the protective film to be inaccurate during cutting, thereby affecting the cutting accuracy. The decrease in cutting accuracy may cause the product to not meet the specification requirements and increase the scrap rate. Utility Model Content

[0004] The purpose of the utility model is to provide a feeding device for an automatic cutting line of a protective film, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a feeding device for an automatic cutting line for protective film, comprising a mounting frame and an auxiliary conveying assembly provided on one side of the mounting frame, and further comprising:

[0006] A workbench is bolted to one side of the mounting frame surface, with fixing frames bolted to both sides of the top of the workbench, first guide rollers are rotatably connected to both sides of the opposite surfaces of the fixing frames, a second guide roller is provided above the workbench, a mounting groove is provided inside the fixing frame, and a lifting mechanism is provided inside the mounting groove;

[0007] An auxiliary frame is bolted to one side of the surface of the fixed frame, and a mounting frame is bolted to one side of the workbench surface. A linkage mechanism is provided inside the mounting frame. The surfaces of the first guide roller and the second guide roller on both sides are slidably connected to the limit plate. A sliding groove is provided at the bottom of the inner wall of the mounting frame, and sliders are slidably connected to both sides of the inner wall of the sliding groove.

[0008] Preferably, the lifting mechanism includes a rotating rod rotated on the top of the fixed frame and a bevel gear bolted to one side of the surface of the rotating rod, the opposite surfaces of the bevel gears on both sides are bolted with a transmission rod, the bottom of the rotating rod is bolted with a one-way threaded rod, the bottom of the one-way threaded rod is rotatably connected to the bottom of the inner wall of the mounting groove, one side of the surface of the one-way threaded rod is threadedly connected to a movable seat, the surface of the movable seat is slidably connected to the inner wall of the mounting groove, the opposite surfaces of the movable seats on both sides are rotatably connected to the two ends of the surface of the second guide roller, and the two sides of the surface of the transmission rod are rotatably connected to the inner walls of the auxiliary frames on both sides.

[0009] Preferably, the linkage mechanism includes a torsion rod rotated on one side of the mounting frame surface and a bidirectional threaded rod bolted to one end of the torsion rod surface, the other end of the bidirectional threaded rod surface is rotatably connected to one side of the inner wall of the mounting frame, both sides of the bidirectional threaded rod surface are threadedly connected to a transmission seat, the top of the transmission seat is bolted with an L-shaped plate, one side of the L-shaped plate surface is bolted to one side of the limit plate surface, and the bottom of the transmission seat is bolted to the top of the slider.

[0010] Preferably, the outer diameter of the second guide roller is equal to the outer diameter of the first guide roller.

[0011] Preferably, the height of the middle inner wall of the limiting plate is equal to the maximum moving distance of the second guide roller.

[0012] Preferably, the cross section of the movable seat is designed to be square, and the inner wall of the mounting groove is designed to be square.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model can drive the second guide roller to rise and fall by one power source through the cooperation of the mounting groove, the lifting mechanism and the auxiliary frame, and does not need to use a control system to deal with the synchronization and coordination problems between multiple power sources, thereby reducing the control difficulty and complexity, helping to reduce production costs, and also meeting the requirements of modern industry for energy conservation and environmental protection. With the cooperation of the mounting frame, the linkage mechanism and the limit plate, it can ensure that the protective film always maintains a stable position during the conveying process, avoiding cutting errors caused by offset, helping to improve the cutting accuracy of the product, and eliminating the need for frequent shutdowns to adjust the position of the protective film, thereby greatly improving production efficiency and shortening the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing frame in the present utility model;

[0017] Figure 3 This is a structural diagram of the lifting mechanism in the utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the mounting frame of the present invention;

[0019] Figure 5 It is a structural diagram of the linkage mechanism in the utility model.

[0020] In the figure: 1. Mounting frame; 2. Workbench; 3. Auxiliary conveying assembly; 4. Fixed frame; 5. First guide roller; 6. Second guide roller; 7. Mounting groove; 8. Lifting mechanism; 81. Rotating rod; 82. Bevel gear; 83. Transmission rod; 84. One-way threaded rod; 85. Moving seat; 9. Auxiliary frame; 10. Mounting frame; 11. Linkage mechanism; 111. Torsion bar; 112. Two-way threaded rod; 113. Transmission seat; 114. L-shaped plate; 12. Limiting plate; 13. Slide groove; 14. Slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5As shown, a feeding device for an automatic cutting line for a protective film is provided, comprising a mounting frame 1, an auxiliary conveying assembly 3 is provided on one side of the mounting frame 1, the auxiliary conveying assembly 3 is composed of a base, a servo motor, a rolling rod, and a chuck, and the rolled protective film can be rotated under the action of the auxiliary conveying assembly 3, a workbench 2 is bolted to one side of the surface of the mounting frame 1, a fixing frame 4 is bolted to both sides of the top of the workbench 2, and first guide rollers 5 are rotatably connected to both sides of the opposite surfaces of the fixing frames 4 on both sides, and a second guide roller 6 is provided above the workbench 2, the outer diameter of the second guide roller 6 is equal to the outer diameter of the first guide roller 5, the first guide roller 5 and the second guide roller 6 are used in conjunction with each other, and the unfolded protective film can pass through between the first guide roller 5 and the second guide roller 6 on both sides, a mounting groove 7 is provided inside the fixing frame 4, and a lifting mechanism 8 is provided inside the mounting groove 7, and the lifting mechanism 8 is used in conjunction with the second guide roller 6, and can drive the second guide roller 6 to rise and fall when the lifting mechanism 8 is running, and the lifting and falling of the second guide roller 6 The tension of the protective film can be adjusted when the protective film is in a state of tension. An auxiliary frame 9 is bolted to one side of the surface of the fixed frame 4. The lifting mechanism 8 cooperates with the auxiliary frames 9 on both sides to support the parts inside the lifting mechanism 8 under the action of the auxiliary frames 9 on both sides. A mounting frame 10 is bolted to one side of the surface of the workbench 2. A linkage mechanism 11 is provided inside the mounting frame 10. The surfaces of the first guide roller 5 and the second guide roller 6 on both sides are slidably connected to the limit plates 12. Under the action of the linkage mechanism 11, the limit plates 12 on both sides can be driven to move in opposite directions. The height of the middle inner wall of the limit plate 12 is equal to the maximum moving distance of the second guide roller 6. When the limit plates 12 on both sides move to the appropriate position, the protective film can be limited. A slide groove 13 is provided at the bottom of the inner wall of the mounting frame 10. Both sides of the inner wall of the slide groove 13 are slidably connected with sliders 14. The linkage mechanism 11 cooperates with the sliders 14 on both sides to make the parts inside the linkage mechanism 11 move more stably under the action of the sliders 14 on both sides.

[0023] The lifting mechanism 8 includes a rotating rod 81, and there are two rotating rods 81. One side of the surface of the rotating rod 81 is rotatably connected to the top of the fixed frame 4. One side of the surface of the rotating rod 81 is bolted with a bevel gear 82. When the rotating rod 81 rotates, the bevel gear 82 can be driven to rotate. The opposite surfaces of the bevel gears 82 on both sides are bolted with a transmission rod 83. When the bevel gear 82 on one side rotates, the transmission rod 83 can be rotated. When the transmission rod 83 rotates, the bevel gear 82 on the other side can be rotated. When the bevel gear 82 on the other side rotates, the rotating rod 81 on the other side can be rotated. The bottom of the rotating rod 81 is bolted with a one-way threaded rod 84. The one-way threaded rod 84 The bottom is rotatably connected to the bottom of the inner wall of the mounting groove 7. When the rotating rod 81 rotates, the one-way threaded rod 84 can be driven to rotate. One side of the surface of the one-way threaded rod 84 is threadedly connected with a moving seat 85. The surface of the moving seat 85 is slidably connected to the inner wall of the mounting groove 7. When the one-way threaded rod 84 rotates, the moving seat 85 can be lifted and lowered. The cross-section of the moving seat 85 is square in design, and the inner wall of the mounting groove 7 is square in design. The opposite surfaces of the moving seats 85 on both sides are rotatably connected to the two ends of the surface of the second guide roller 6. When the moving seats 85 on both sides are lifted and lowered, the second guide roller 6 can be driven to lift and lower. The two sides of the surface of the transmission rod 83 are rotatably connected to the inner walls of the auxiliary frames 9 on both sides.

[0024] The linkage mechanism 11 includes a torsion bar 111, one side of the surface of the torsion bar 111 is rotatably connected to one side of the surface of the installation frame 10, and one end of the surface of the torsion bar 111 is bolted to a bidirectional threaded rod 112, and the other end of the surface of the bidirectional threaded rod 112 is rotatably connected to one side of the inner wall of the installation frame 10. When the torsion bar 111 rotates, the bidirectional threaded rod 112 can be driven to rotate. Both sides of the surface of the bidirectional threaded rod 112 are threadedly connected to a transmission seat 113. When the bidirectional threaded rod 112 rotates, the transmission seats 113 on both sides can be moved in opposite directions.

[0025] It is worth noting that the technical features such as the auxiliary conveying component 3 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control method and spatial layout method of these technical features can be selected according to conventional methods in the field, and this technical solution will not be further elaborated.

[0026] Working principle: When replacing protective films of different materials and thicknesses, rotate the rotating rod 81 on one side. When the rotating rod 81 on one side rotates, the bevel gear 82 on one side rotates, and then the bevel gear 82 on one side rotates to rotate the transmission rod 83. Next, the transmission rod 83 rotates to rotate the bevel gear 82 on the other side. When the bevel gear 82 on the other side rotates, the rotating rod 81 on the other side rotates. Then, the rotating rod 81 rotates to rotate the one-way threaded rod 84. Next, the one-way threaded rod 84 rotates to make the moving seat 85 rise and fall. When the moving seats 85 on both sides rise and fall, When the torsion bar 111 is rotated, the two-way threaded rod 112 can be driven to rotate, and then the two-way threaded rod 112 can be rotated to make the transmission seats 113 on both sides move in opposite directions. Next, the movement of the transmission seat 113 can drive the L-shaped plate 114 to move. When the L-shaped plate 114 moves, it can drive the limit plate 12 to move. Then, when the limit plates 12 on both sides move to the appropriate position, the cling film can be limited.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for an automatic cutting line for protective films, comprising a mounting frame (1) and an auxiliary conveying assembly (3) arranged on one side of the mounting frame (1), characterized in that: Also includes: A workbench (2) is bolted to one side of the surface of the mounting frame (1), and fixing frames (4) are bolted to both sides of the top of the workbench (2), and first guide rollers (5) are rotatably connected to both sides of the opposite surfaces of the fixing frames (4). A second guide roller (6) is provided above the workbench (2), and a mounting groove (7) is provided inside the fixing frame (4), and a lifting mechanism (8) is provided inside the mounting groove (7); An auxiliary frame (9) is bolted to one side of the surface of the fixed frame (4), and a mounting frame (10) is bolted to one side of the surface of the workbench (2). A linkage mechanism (11) is provided inside the mounting frame (10). The surfaces of the first guide roller (5) and the second guide roller (6) on both sides are slidably connected to a limit plate (12). A sliding groove (13) is provided at the bottom of the inner wall of the mounting frame (10), and sliders (14) are slidably connected to both sides of the inner wall of the sliding groove (13).

2. The feeding device of the automatic cutting line for protective film according to claim 1, characterized in that: The lifting mechanism (8) comprises a rotating rod (81) rotating on the top of the fixed frame (4) and a bevel gear (82) bolted to one side of the surface of the rotating rod (81); the opposite surfaces of the bevel gears (82) on both sides are bolted with a transmission rod (83); the bottom of the rotating rod (81) is bolted with a one-way threaded rod (84); the bottom of the one-way threaded rod (84) is rotatably connected to the bottom of the inner wall of the installation groove (7); one side of the surface of the one-way threaded rod (84) is threadedly connected to a moving seat (85); the surface of the moving seat (85) is slidably connected to the inner wall of the installation groove (7); the opposite surfaces of the moving seat (85) on both sides are rotatably connected to the two ends of the surface of the second guide roller (6); and the two sides of the surface of the transmission rod (83) are rotatably connected to the inner walls of the auxiliary frames (9) on both sides.

3. The feeding device of the automatic cutting line for protective film according to claim 1, characterized in that: The linkage mechanism (11) comprises a torsion rod (111) rotatable on one side of the surface of the installation frame (10) and a bidirectional threaded rod (112) bolted to one end of the surface of the torsion rod (111); the other end of the surface of the bidirectional threaded rod (112) is rotatably connected to one side of the inner wall of the installation frame (10); both sides of the surface of the bidirectional threaded rod (112) are threadedly connected to a transmission seat (113); the top of the transmission seat (113) is bolted to an L-shaped plate (114); one side of the surface of the L-shaped plate (114) is bolted to one side of the surface of the limit plate (12); and the bottom of the transmission seat (113) is bolted to the top of the slider (14).

4. The feeding device of the automatic cutting line for protective film according to claim 1, characterized in that: The outer diameter of the second guide roller (6) is equal to the outer diameter of the first guide roller (5).

5. The feeding device of the automatic cutting line for protective film according to claim 1, characterized in that: The height of the middle inner wall of the limiting plate (12) is equal to the maximum moving distance of the second guide roller (6).

6. The feeding device of the automatic cutting line for protective film according to claim 2, characterized in that: The cross section of the movable seat (85) is designed to be square, and the inner wall of the mounting groove (7) is designed to be square.

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