Cutting equipment for manufacturing PET (Polyethylene Terephthalate) protective film

Abstract

The utility model relates to the technical field of protective films, and discloses a cutting device for manufacturing a PET protective film, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a workbench, the rear side of the workbench is fixedly connected with a first mounting plate, the top of the first mounting plate is fixedly connected with a driving assembly, and the driving assembly is fixedly connected with a second mounting plate. The front side of the driving assembly is fixedly connected with a first driving belt wheel, the first driving belt wheel is sleeved with a first transmission belt, the interior of the workbench is fixedly connected with a plurality of rotating rods, and the exteriors of the rotating rods are rotationally connected with first driven belt wheels. According to the protective film cutting device, a protective film can be transported through the power plate, and can be flattened under the cooperation of the stress plate, so that the protective film can be cut into shapes with consistent sizes when the protective film is cut by the device, and the quality of the produced protective film is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective films, in particular to a cutting device used for manufacturing PET protective films. Background Art

[0002] PET protective film manufacturers are one of the main usage scenarios. These manufacturers usually invest in cutting equipment to meet the market demand for PET protective films of various specifications and sizes. The packaging industry is one of the main consumer areas of PET protective films. Cutting equipment can be used to cut large rolls of PET protective film into the required size and shape for packaging. In the electronic product manufacturing industry, PET protective film is often used to protect the product surface from scratches, dirt and other damage. Cutting equipment can be used to customize PET protective films of various sizes to meet the needs of different products.

[0003] After searching: Chinese patent announcement number: CN218365004U, it relates to the field of protective film technology, and discloses a protective film cutting device, including a main body mechanism, a pushing mechanism and a cutting mechanism, wherein the pushing mechanism is located at the upper end of the main body mechanism, and the cutting mechanism is located at the inner end of the main body mechanism, and the main body mechanism includes a workbench, a straight plate 1 and a straight plate 2, wherein the straight plate 1 is fixedly installed at the upper end of the workbench, and the straight plate 2 is fixedly installed at the right end of the straight plate 1, and the straight plate 2 is spaced a distance from the straight plate 1. The protective film cutting device, by installing the pushing mechanism and the cutting mechanism, can directly and flexibly push the protective film during the cutting process of the protective film, and at the same time better ensure the stability of the protective film during the cutting process, greatly enhance the working effect of the protective film cutting machine, better ensure the working efficiency of the protective film cutting machine, and greatly ensure the use efficiency of the protective film cutting machine.

[0004] The above patent embodiment records that "by installing a pushing mechanism and a cutting mechanism, the protective film can be directly and flexibly pushed during the cutting process of the protective film, and the stability of the protective film during the cutting process is also better guaranteed." The above embodiment records that the installed pushing mechanism and cutting mechanism can push the protective film during the cutting process of the protective film, thereby ensuring the stability of the cutting process. However, it does not take into account that before cutting the protective film, the protective film needs to be flattened to ensure the quality of the cut protective film. Therefore, in view of the above-mentioned deficiencies, a new cutting device for PET protective film manufacturing is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a cutting device for manufacturing a PET protective film, aiming to improve the problem in the prior art that the protective film cannot be flattened before cutting the protective film.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The cutting equipment for manufacturing PET protective film comprises a base plate, a workbench is fixedly connected to the top of the base plate, a mounting plate is fixedly connected to the rear side of the workbench, a driving assembly is fixedly connected to the top of the mounting plate, a driving pulley is fixedly connected to the front side of the driving assembly, a transmission belt is sleeved on the outside of the driving pulley, a plurality of rotating rods are fixedly connected to the inside of the workbench, a driven pulley is rotatably connected to the outside of the plurality of rotating rods, a rotating plate is rotatably connected to the outside of the driven pulley and the driving pulley, a fixed disk is fixedly connected to the outside of the rotating plate, a connecting frame is fixedly connected to a plurality of power plates on the front and rear sides of the top of the connecting frame, sliding holes are provided on the front and rear sides of the top of the workbench, and a cutting assembly is fixedly connected to the top of the workbench.

[0008] As a further description of the above technical solution, the drive assembly includes a motor 1 and an output shaft 1, the bottom of the motor 1 is fixedly connected to the top of the mounting plate 1, the rear top end of the output shaft 1 is fixedly connected to the output end of the motor 1, and the middle part of the driving pulley 1 is fixedly connected to the outer front side of the output shaft 1.

[0009] As a further description of the above technical scheme, the right front and rear ends of the bottom plate are fixedly connected with a fixing plate 1, the top end of the rear side of one of the fixing plates 1 is fixedly connected with a mounting plate 2, the top of the mounting plate 2 is fixedly connected with a motor 2, the output end of the motor 2 is fixedly connected with an output shaft 2, the front side of the output shaft 2 is fixedly connected with a unwinding roller, the rear side of the output shaft 2 is fixedly connected with a driving pulley 2, the outer side of the driving pulley 2 is sleeved with a transmission belt 2, the top left front and rear ends of the bottom plate are fixedly connected with a fixing plate 2, the top of the fixing plate 2 is rotatably connected with a rotating shaft, the outer rear side of the rotating shaft is fixedly connected with a driven pulley 2, and the outer side of the rotating shaft is fixedly connected with a winding roller, the top front and rear sides of the workbench are fixedly connected with a supporting plate, the tops of the adjacent sides of the two supporting plates are fixedly connected with a fixing plate 3, the left and right sides of the two fixing plates 3 are slidably connected with sliding columns, the outer sides of the two sliding columns are sleeved with springs, and the bottoms of the two sliding columns are fixedly connected with a force-bearing plate.

[0010] As a further description of the above technical solution, the cutting assembly includes a support frame and two cutting knives, the bottom of the support frame is fixedly connected to the left side of the top of the workbench, the tops of the two cutting knives are respectively fixedly connected to the front and rear sides of the bottom of the support frame, and the bottoms of the two cutting knives are respectively fixedly connected to the front and rear ends of the left side of the top of the workbench.

[0011] As a further description of the above technical solution, the top of the power plate is slidably connected to the inside of the sliding hole, and the top of the power plate passes through the top of the sliding hole and extends outward.

[0012] As a further description of the above technical solution, one end of the spring is fixedly connected to the bottom of the fixed plate three, and the other end of the spring is fixedly connected to the top of the force-bearing plate.

[0013] As a further description of the above technical solution, the far sides of the two force-bearing plates are in contact with the close sides of the two support plates, and the inner side of the second transmission belt is sleeved on the outside of the second driven pulley.

[0014] As a further description of the above technical solution, the inner side of the transmission belt 1 is sleeved on the outer side of the driven pulley 1, and the outer sides of the driving pulley 1 and the driven pulley 1 are in contact with the inner wall of the workbench.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the protective film can be transported by the power plate, and the protective film can be flattened with the cooperation of the force plate, so that the device can cut the protective film into shapes of uniform size when cutting the protective film, thereby improving the quality of the produced protective film.

[0017] 2. In the utility model, the protective film can be unwound and the protective film can be rewound after cutting by the cooperation of the unwinding roller and the rewinding roller, thereby reducing the workload of the staff and improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a cutting device for manufacturing a PET protective film proposed in the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the workbench of the cutting equipment for manufacturing PET protective film proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connecting frame of the cutting equipment for manufacturing PET protective film proposed by the utility model;

[0021] Figure 4 for Figure 1 Enlarged view of point A.

[0022] Legend:

[0023] 1. Bottom plate; 2. Workbench; 3. Mounting plate 1; 4. Motor 1; 5. Output shaft 1; 6. Driving pulley 1; 7. Transmission belt 1; 8. Rotating rod; 9. Driven pulley 1; 10. Rotating plate; 11. Fixed plate; 12. Connecting frame; 13. Power plate; 14. Sliding hole; 15. Fixed plate 1; 16. Mounting plate 2; 17. Motor 2; 18. Unwinding roller; 19. Driving pulley 2; 20. Transmission belt 2; 21. Fixed plate 2; 22. Rotating shaft; 23. Driven pulley 2; 24. Winding roller; 25. Support plate; 26. Fixed plate 3; 27. Sliding column; 28. Spring; 29. ​​Force plate; 30. Support frame; 31. Cutting knife. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a cutting device for manufacturing PET protective film, comprising a base plate 1, a workbench 2 is fixedly connected to the top of the base plate 1, so that the base plate 1 can provide support for the workbench 2, a mounting plate 3 is fixedly connected to the rear side of the workbench 2, and the workbench 2 can provide support for the mounting plate 3, a driving assembly is fixedly connected to the top of the mounting plate 3, and the mounting plate 3 can provide support for the driving assembly, and a driving pulley 6 is fixedly connected to the front side of the driving assembly, so that starting the driving assembly can drive the driving pulley 6 to rotate.

[0026] The driving assembly includes a motor 4 and an output shaft 5. The bottom of the motor 4 is fixedly connected to the top of the mounting plate 3, so that the mounting plate 3 can provide support for the motor 4. The rear top end of the output shaft 5 is fixedly connected to the output end of the motor 4, so that starting the motor 4 can make the output end of the motor 4 drive the output shaft 5 to rotate. The middle part of the driving pulley 6 is fixedly connected to the outer front side of the output shaft 5, so that the output shaft 5 will drive the driving pulley 6 to rotate when it rotates. The outer sleeve of the driving pulley 6 is provided with a transmission belt 7, and then the driving pulley 6 will drive the transmission belt 7 to move when it rotates. The interior of the workbench 2 is fixedly connected with a plurality of rotating rods 8, and the outer parts of the plurality of rotating rods 8 are all rotatably connected with driven pulleys 9, so that the rotating rods 8 can provide support for the driven pulley 9.

[0027] The inner side of the transmission belt 7 is sleeved on the outside of the driven pulley 9, and then the transmission belt 7 will drive the driven pulley 9 to move when it moves. The outsides of the driving pulley 6 and the driven pulley 9 are in contact with the inner wall of the workbench 2. The outsides of the driven pulley 9 and the driving pulley 6 are rotatably connected with a rotating plate 10, and then the driven pulley 9 and the driving pulley 6 will drive the rotating plate 10 to move when they rotate. The outside of the rotating plate 10 is fixedly connected with a fixed disk 11, and then the rotating plate 10 will drive the fixed disk 11 to move when it moves. The outside of the fixed disk 11 is fixedly connected with a connecting frame 12, and then the fixed disk 11 will drive the connecting frame 12 to move when it moves. A plurality of power plates 13 are fixedly connected to the front and rear sides of the top of the connecting frame 12, so that the connecting frame 12 will drive the plurality of power plates 13 to move when it moves.

[0028] Sliding holes 14 are provided on the front and rear sides of the top of the workbench 2. The top of the power plate 13 is slidably connected to the inside of the sliding hole 14. The top of the power plate 13 passes through the top of the sliding hole 14 and extends outward, so that the power plate 13 can transport objects placed on the top of the workbench 2. A cutting assembly is fixedly connected to the top of the workbench 2. The cutting assembly includes a support frame 30 and two cutting knives 31, so that the protective film will be cut by the cutting knives during transportation. The bottom of the support frame 30 is fixedly connected to the left side of the top of the workbench 2, and the tops of the two cutting knives 31 are respectively fixedly connected to the front and rear sides of the bottom of the support frame 30, and the bottoms of the two cutting knives 31 are respectively fixedly connected to the front and rear ends of the left side of the top of the workbench 2.

[0029] like Figure 1 and Figure 4As shown: both front and rear ends of the right side of the bottom plate 1 are fixedly connected with a fixing plate 15, and the top end of the rear side of one of the fixing plates 15 is fixedly connected with a mounting plate 2 16, so that the fixing plate 15 can provide support for the mounting plate 2 16, and the top of the mounting plate 2 16 is fixedly connected with a motor 2 17, and then the mounting plate 2 16 can provide support for the motor 2 17, and the output end of the motor 2 17 is fixedly connected with an output shaft 2, and then starting the motor 2 17 can make the output end of the motor 2 17 drive the output shaft 2 to rotate, and the front side of the output shaft 2 is fixedly connected with a unwinding roller 18, so that the output shaft 2 will drive the unwinding roller 18 to rotate when it rotates, and the rear side of the output shaft 2 is fixedly connected with a driving pulley 2 19.

[0030] Then, when the output shaft 2 rotates, it will drive the active pulley 2 19 to rotate. The outer sleeve of the active pulley 2 19 is provided with a transmission belt 20, and then when the active pulley 2 19 rotates, it will drive the transmission belt 20 to move. The front and rear ends of the top left side of the bottom plate 1 are fixedly connected with a fixed plate 21, and the top of the fixed plate 21 is rotatably connected with a rotating shaft 22, so that the fixed plate 21 can provide support for the rotating shaft 22, and the outer rear side of the rotating shaft 22 is fixedly connected with a driven pulley 23, and then when the driven pulley 23 rotates, it will drive the rotating shaft 22 to rotate. The outer part of the rotating shaft 22 is fixedly connected with a winding roller 24, and then when the rotating shaft 22 rotates, it will drive the winding roller 24 to rotate.

[0031] When the winding roller 24 rotates, it will wind up the cut protective film. Support plates 25 are fixedly connected to the front and rear sides of the top of the workbench 2. Fixed plates three 26 are fixedly connected to the tops of the adjacent sides of the two support plates 25, so that the support plates 25 can provide support for the fixed plates three 26. Sliding columns 27 are slidably connected to the left and right sides of the two fixed plates three 26, and then the fixed plates three 26 can provide support for the sliding columns 27. Springs 28 are sleeved on the outside of the two sliding columns 27. The bottoms of the two sliding columns 27 are fixedly connected to force plates 29, and then the force plates 29 will drive the sliding columns 27 to move when force is applied.

[0032] One end of the spring 28 is fixedly connected to the bottom of the fixed plate 3 26, and the other end of the spring 28 is fixedly connected to the top of the force-bearing plate 29. Then, when the force-bearing plate 29 moves, the spring 28 will be compressed, and the far sides of the two force-bearing plates 29 will contact the close sides of the two support plates 25. The inner side of the transmission belt 20 is sleeved on the outside of the driven pulley 23, so that the transmission belt 20 will drive the driven pulley 23 to move when it moves.

[0033] Compared with some existing technologies, the above content enables the device in the utility model to transport the protective film through the power plate 13 during use, and to flatten the protective film with the cooperation of the force plate 29, so that the device can cut the protective film into shapes of uniform size when cutting the protective film, thereby improving the quality of the produced protective film, and through the cooperation of the unwinding roller 18 and the winding roller 24, the protective film can be unwound, and the protective film after cutting can be wound up, thereby reducing the workload of the staff and improving the working efficiency of the device.

[0034] Working principle: first, the other end of the protective film wound on the outside of the unwinding roller 18 is sleeved on the outside of the winding roller 24, and then the motor 2 17 is started, so that the output end of the motor 2 17 drives the output shaft 2 to rotate, and then the output shaft 2 will drive the unwinding roller 18 to rotate when it rotates, and then the unwinding roller 18 will unwind the protective film when it rotates, so that the output shaft 2 will drive the active pulley 2 19 to rotate when it rotates, and then the active pulley 2 19 will drive the driven pulley 2 23 to rotate through the transmission belt 20 when it rotates, and then the driven pulley 2 23 will drive the winding roller 24 to rotate through the rotating shaft 22 when it rotates, so that it can wind up the protective film, and in the process of winding up the protective film, the protective film will be cut to a fixed size by the cutting knife 31.

[0035] When the winding roller 24 is winding the protective film, the motor 4 is started, so that the output end of the motor 4 drives the output shaft 5 to rotate, so that the output shaft 5 drives the driving pulley 6 to rotate when rotating, and then the driving pulley 6 drives one of the driven pulleys 9 to rotate through the transmission belt 7 when rotating, and then the driven pulley 9 and the driving pulley 6 drive the rotating plate 10 to move when rotating, so that the rotating plate 10 drives the connecting frame 12 to move through the fixed disk 11 when moving. , and then the connecting frame 12 will drive multiple power plates 13 to move when it moves, so that the protective film passing through the top of the workbench 2 can be lifted up and made to contact with the bottom of the force-bearing plate 29. At this time, the power plate 13 will press the force-bearing plate 29, so that the force-bearing plate 29 drives the sliding column 27 to move, so that the force-bearing plate 29 will compress the spring 28 when it moves, and then under the action of the spring 28's restoring force, the force-bearing plate 29 will apply force downward, and then in the process of the force-bearing plate 29 applying force downward and the power plate 13 applying force upward, the protective film will be flattened.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device for manufacturing PET protective film, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a workbench (2), the rear side of the workbench (2) is fixedly connected to a mounting plate (3), the top of the mounting plate (3) is fixedly connected to a driving assembly, the front side of the driving assembly is fixedly connected to a driving pulley (6), the outer side of the driving pulley (6) is sleeved with a transmission belt (7), the inside of the workbench (2) is fixedly connected to a plurality of rotating rods (8), and the outer sides of the plurality of rotating rods (8) are all rotatably connected to a driven pulley (9). The driven pulley 1 (9) and the driving pulley 1 (6) are both rotatably connected to a rotating plate (10) on the outside, the rotating plate (10) is fixedly connected to a fixed disk (11) on the outside, the fixed disk (11) is fixedly connected to a connecting frame (12) on the outside, a plurality of power plates (13) are fixedly connected to the front and rear sides of the top of the connecting frame (12), sliding holes (14) are provided on the front and rear sides of the top of the workbench (2), and a cutting assembly is fixedly connected to the top of the workbench (2).

2. The cutting device for manufacturing PET protective film according to claim 1, characterized in that: The driving assembly comprises a motor (4) and an output shaft (5), the bottom of the motor (4) is fixedly connected to the top of the mounting plate (3), the rear top of the output shaft (5) is fixedly connected to the output end of the motor (4), and the middle of the driving pulley (6) is fixedly connected to the outer front side of the output shaft (5).

3. The cutting device for manufacturing PET protective film according to claim 1, characterized in that: The front and rear ends of the right side of the bottom plate (1) are fixedly connected to a fixing plate 1 (15), the top end of the rear side of one of the fixing plates 1 (15) is fixedly connected to a mounting plate 2 (16), the top of the mounting plate 2 (16) is fixedly connected to a motor 2 (17), the output end of the motor 2 (17) is fixedly connected to an output shaft 2, the front side of the output shaft 2 is fixedly connected to a reeling roller (18), the rear side of the output shaft 2 is fixedly connected to a driving pulley 2 (19), the outer side of the driving pulley 2 (19) is provided with a transmission belt 2 (20), the front and rear ends of the top left side of the bottom plate (1) are fixedly connected to a fixing plate 2 (21), the fixing plate The top of the second (21) is rotatably connected to a rotating shaft (22), the outer rear side of the rotating shaft (22) is fixedly connected to a driven pulley two (23), the outer side of the rotating shaft (22) is fixedly connected to a winding roller (24), the front and rear sides of the top of the workbench (2) are fixedly connected to support plates (25), the tops of the adjacent sides of the two support plates (25) are fixedly connected to fixed plates three (26), the left and right sides of the two fixed plates three (26) are slidably connected to sliding columns (27), the outer sides of the two sliding columns (27) are both sleeved with springs (28), and the bottoms of the two sliding columns (27) are fixedly connected to force plates (29).

4. The cutting device for manufacturing PET protective film according to claim 1, characterized in that: The cutting assembly comprises a support frame (30) and two cutting knives (31); the bottom of the support frame (30) is fixedly connected to the left side of the top of the workbench (2); the tops of the two cutting knives (31) are respectively fixedly connected to the front and rear sides of the bottom of the support frame (30); and the bottoms of the two cutting knives (31) are respectively fixedly connected to the front and rear ends of the left side of the top of the workbench (2).

5. The cutting device for manufacturing PET protective film according to claim 1, characterized in that: The top of the power plate (13) is slidably connected to the inside of the sliding hole (14), and the top of the power plate (13) passes through the top of the sliding hole (14) and extends outward.

6. The cutting device for manufacturing PET protective film according to claim 3, characterized in that: One end of the spring (28) is fixedly connected to the bottom of the fixing plate three (26), and the other end of the spring (28) is fixedly connected to the top of the force-bearing plate (29).

7. The cutting device for manufacturing PET protective film according to claim 3, characterized in that: The far sides of the two force-bearing plates (29) are in contact with the near sides of the two support plates (25), and the inner side of the second transmission belt (20) is sleeved on the outside of the second driven pulley (23).

8. The cutting device for manufacturing PET protective film according to claim 1, characterized in that: The inner side of the transmission belt 1 (7) is sleeved on the outer side of the driven pulley 1 (9), and the outer sides of the driving pulley 1 (6) and the driven pulley 1 (9) are in contact with the inner wall of the workbench (2).

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