Cutting device for PET protective film

Abstract

The utility model discloses a cutting device for a PET protective film, and relates to the technical field of cutting devices, the cutting device comprises a base, the upper end of the base is fixedly provided with a cutting table, the left upper end of the cutting table is symmetrically and fixedly provided with supporting plates, the inner sides of the supporting plates are rotatably connected with a feeding roller, the left side of the upper end of the cutting table is provided with a fixing mechanism, and the left side of the upper end of the cutting table is provided with a clamping mechanism. A cutting mechanism is installed on the right side of the fixing mechanism, a cutting groove is formed in the right side of the upper end of the cutting table, supports are symmetrically and fixedly installed on the end face of the right end of the cutting table, the inner sides of the supports are rotationally connected with material collecting rollers, and a cutting knife is installed at the lower end of the cutting mechanism. Through the cooperation of the mounting plate, the sliding sleeve, the sliding rod, the pulling plate, the pressing plate, the sliding block, the guide rod, the spring, the mounting cylinder, the limiting rod and the fixing plate, the pressing plate can be adjusted up and down, and then the pressing plate can be used for compacting the PET protection mold, so that the stability of the PET protection mold can be ensured, and the PET protection mold can be flatly cut.

Description

Technical Field

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

[0002] PET material was developed by DuPont in the United States in the early 1970s. It was initially used mainly in industry. For example, the Coca-Cola plastic bottles we see today are made of PET.

[0003] Application: Surface protection of mobile phones and other electronic products, heat insulation of glass surface, UV protection, etc.

[0004] PET material has been developed rapidly because of its advantages of light weight, high strength, good transparency and gas barrier, non-toxicity, and tastelessness. Since the 1990s, the production and application of plastic packaging materials have developed like mushrooms after rain. Then, with the maturity of touch technology, PET material has been used in various LCD screens, which is today's PET protective film!

[0005] During the production process of PET protective film, it needs to be cut.

[0006] The existing technology has the following problems:

[0007] In actual use of the existing device, when the protective film is cut, it is easy for the protective film to be cut unevenly at the cutting position because the protective film is in a semi-relaxed state; at the same time, the existing device is not convenient for adjusting the cutting knife, which makes it inconvenient to cut the PET protective film. Utility Model Content

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A cutting device for PET protective film comprises a base, a cutting table is fixedly mounted on the upper end of the base, a support plate is symmetrically fixedly mounted on the upper left end of the cutting table, a feeding roller is rotatably connected to the inner side of the support plate, a fixing mechanism is mounted on the left side of the upper end of the cutting table, a cutting mechanism is mounted on the right side of the fixing mechanism, a cutting groove is provided on the right side of the upper end of the cutting table, a bracket is symmetrically fixedly mounted on the right end surface of the cutting table, a receiving roller is rotatably connected to the inner side of the bracket, and a cutting knife is mounted on the lower end of the cutting mechanism.

[0010] Preferably: the fixing mechanism includes a mounting plate, the lower end of the mounting plate is fixedly connected to the left end face of the upper end of the cutting table, a sliding sleeve is fixedly installed in the middle of the top of the mounting plate, a sliding rod is slidably connected inside the sliding sleeve, a pulling plate is fixedly installed on the top of the sliding rod, a pressing plate is fixedly installed on the bottom of the sliding rod, sliding blocks are symmetrically fixedly installed at the front and rear ends of the pressing plate, a guide rod is slidably connected in the middle of the sliding block, a spring is sleeved on the outer side of the upper end of the guide rod, mounting cylinders are symmetrically fixedly installed on the inner top end of the mounting plate, a limiting sliding limit rod is provided inside the mounting cylinder, and a fixing plate is fixedly installed on the left surface of the upper end of the base.

[0011] Preferably, the top of the guide rod is fixedly connected to the inner top end of the mounting plate, and the bottom of the guide rod is fixedly connected to the left end surface of the upper end of the cutting table.

[0012] Preferably: one end of the spring is fixedly connected to the inner top surface of the mounting plate, and the other end is fixedly connected to the upper surface of the slider, and the lower end of the limit rod is symmetrically fixedly connected to both sides of the upper end of the pressure plate.

[0013] Preferably: the cutting mechanism includes a fixed frame, the lower end of the fixed frame is symmetrically fixedly connected to the right end face of the upper end of the cutting table, an empty groove is opened on the inner side of the fixed frame, an electric telescopic rod is fixedly installed on the inner bottom end of the empty groove, a docking block is fixedly installed on the top of the output rod of the electric telescopic rod, a connecting plate is fixedly installed between the two groups of the docking blocks, a sliding groove is opened in the middle of the connecting plate, a mounting seat is slidably connected inside the sliding groove, guide blocks are symmetrically fixedly installed on the left and right sides of the mounting seat, guide grooves are symmetrically opened on the left and right inner walls of the sliding groove, a threaded column is fixedly installed on the upper end of the mounting seat, and a knob is threadedly connected to the external thread of the threaded column.

[0014] Preferably, the guide block matches the guide groove and is slidably connected thereto.

[0015] Preferably, the lower end surface of the knob contacts the upper end surface of the connecting plate.

[0016] Preferably, the top of the cutting knife is fixedly connected to the lower end of the mounting seat, and the cutting knife is located directly above the cutting groove.

[0017] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0018] 1. The utility model provides a cutting device for PET protective film. Through a fixing mechanism, the pressing plate can be adjusted up and down by the cooperation of a mounting plate, a sliding sleeve, a sliding rod, a pulling plate, a pressing plate, a sliding block, a guide rod, a spring, a mounting tube, a limiting rod, and a fixing plate. Then, the pressing plate can be used to compact the PET protective mold, so that the stability of the PET protective mold can be ensured so that it can be cut smoothly.

[0019] 2. The utility model provides a cutting device for PET protective film. Through the cutting mechanism, through the cooperation of a fixed frame, an empty slot, an electric telescopic rod, a docking block, a connecting plate, a slide groove, a mounting seat, a guide block, a guide groove, a threaded column, and a knob, the electric telescopic rod can adjust the height of the connecting plate through the docking block, thereby synchronously adjusting the height of the cutting knife, and at the same time, the mounting seat can also be slid so that the mounting seat drives the cutting knife to move horizontally, thereby facilitating the adjustment of the cutting knife, and thus being able to cut strips of PET protective film of different sizes at the same time, which can effectively improve the cutting efficiency of the PET protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a cutting device for a PET protective film according to the present invention;

[0021] Figure 2 It is a structural schematic diagram of a side view of a cutting device for PET protective film of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the cutting mechanism of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the cutting mechanism details of the utility model.

[0025] In the figure: 1. base; 2. cutting table; 3. support plate; 4. feeding roller; 5. fixing mechanism; 6. cutting mechanism; 7. cutting groove; 8. bracket; 9. receiving roller; 10. cutting knife; 51. mounting plate; 52. sliding sleeve; 53. sliding rod; 54. pulling plate; 55. pressing plate; 56. sliding block; 57. guide rod; 58. spring; 59. mounting tube; 510. limiting rod; 511. fixing plate; 61. fixing frame; 62. empty groove; 63. electric telescopic rod; 64. docking block; 65. connecting plate; 66. sliding groove; 67. mounting seat; 68. guide block; 69. guide groove; 610. threaded column; 611. knob. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the embodiments:

[0027] like Figure 1-5 As shown, the utility model provides a cutting device for PET protective film, including a base 1, a cutting table 2 is fixedly installed on the upper end of the base 1, a support plate 3 is symmetrically fixedly installed on the upper left end of the cutting table 2, a feeding roller 4 is rotatably connected to the inner side of the support plate 3, a fixing mechanism 5 is installed on the left side of the upper end of the cutting table 2, a cutting mechanism 6 is installed on the right side of the fixing mechanism 5, a cutting groove 7 is opened on the right side of the upper end of the cutting table 2, a bracket 8 is symmetrically fixedly installed on the right end surface of the cutting table 2, a receiving roller 9 is rotatably connected to the inner side of the bracket 8, and a cutting knife 10 is installed on the lower end of the cutting mechanism 6.

[0028] The top of the cutting knife 10 is fixedly connected to the lower end of the mounting seat 67 , and the cutting knife 10 is located directly above the cutting groove 7 .

[0029] Through the fixing mechanism 5, the pressing plate 55 can be adjusted up and down, and the pressing plate 55 can be used to compact the PET protective mold, so that the stability of the PET protective mold can be ensured so that it can be cut smoothly. Through the cutting mechanism 6, the electric telescopic rod 63 can adjust the height of the connecting plate 65 through the docking block 64, so that the height of the cutting knife 10 can be adjusted synchronously, and the mounting seat 67 can also be slid, so that the mounting seat 67 drives the cutting knife 10 to move horizontally, thereby facilitating the adjustment of the cutting knife 10, and thus strip-shaped PET protective films of different sizes can be cut at the same time, which can effectively improve the cutting efficiency of the PET protective film.

[0030] like Figure 3 As shown, the fixing mechanism 5 includes a mounting plate 51, the lower end of the mounting plate 51 is fixedly connected to the left end face of the upper end of the cutting table 2, a sliding sleeve 52 is fixedly installed in the middle of the top of the mounting plate 51, a sliding rod 53 is slidably connected inside the sliding sleeve 52, a pulling plate 54 is fixedly installed on the top of the sliding rod 53, a pressing plate 55 is fixedly installed on the bottom of the sliding rod 53, sliders 56 are symmetrically fixedly installed at the front and rear ends of the pressing plate 55, a guide rod 57 is slidably connected in the middle of the slider 56, a spring 58 is sleeved on the outer upper end of the guide rod 57, mounting tubes 59 are symmetrically fixedly installed on the inner top of the mounting plate 51, the internal limit sliding of the mounting tube 59 is provided with a limit rod 510, and a fixing plate 511 is fixedly installed on the left surface of the upper end of the base 1.

[0031] The top of the guide rod 57 is fixedly connected to the inner top end of the mounting plate 51 , and the bottom of the guide rod 57 is fixedly connected to the left end surface of the upper end of the cutting table 2 .

[0032] One end of the spring 58 is fixedly connected to the inner top surface of the mounting plate 51 , and the other end is fixedly connected to the upper end surface of the slider 56 . The lower end of the limiting rod 510 is symmetrically fixedly connected to both sides of the upper end of the pressure plate 55 .

[0033] When the pressing plate 55 moves up and down, it will drive the limiting rod 510 to slide synchronously inside the installation tube 59, thereby improving the stability of the pressing plate 55 when moving.

[0034] like Figure 4-5 As shown, the cutting mechanism 6 includes a fixed frame 61, the lower end of the fixed frame 61 is symmetrically fixedly connected to the upper right end face of the cutting table 2, an empty slot 62 is provided on the inner side of the fixed frame 61, an electric telescopic rod 63 is fixedly installed on the inner bottom end of the empty slot 62, a docking block 64 is fixedly installed on the top of the output rod of the electric telescopic rod 63, a connecting plate 65 is fixedly installed between the two groups of docking blocks 64, a slide groove 66 is provided in the middle of the connecting plate 65, a mounting seat 67 is slidably connected inside the slide groove 66, guide blocks 68 are symmetrically fixedly installed on the left and right sides of the mounting seat 67, guide slots 69 are symmetrically provided on the left and right inner walls of the slide groove 66, a threaded column 610 is fixedly installed on the upper end of the mounting seat 67, and a knob 611 is threadedly connected to the outer surface of the threaded column 610.

[0035] The guide block 68 matches the guide groove 69 and is slidably connected.

[0036] The lower end surface of the knob 611 contacts the upper end surface of the connecting plate 65 .

[0037] The working principle of the cutting device for PET protective film will be described in detail below.

[0038] like Figure 1-5As shown, when the PET protective film cutting device is used, the electric telescopic rod 63 can be firstly started, so that the electric telescopic rod 63 pushes the docking block 64 upward, so that the docking block 64 drives the cutting knife 10 to move synchronously through the connecting plate 65, so that the docking block 64 moves to the top of the empty slot 62, and then the knob 611 at the top of the cutting knife 10 is turned to separate the lower end of the knob 611 from the upper end of the connecting plate 65, and then the mounting seat 67 can be controlled to slide along the slide slot 66, and the mounting seat 67 drives the cutting knife 10 to move synchronously, and the cutting knife 10 moves synchronously according to the desired cutting direction. After adjusting the distance between each cutting knife 10 according to the cutting width, the knob 611 is placed on the threaded column 610 and tightened, so that the knob 611 contacts the upper end of the connecting plate 65 again, so that the mounting seat 67 does not move, and then the pull plate 54 can be pulled upward, so that the pull plate 54 drives the slide bar 53 to slide synchronously in the slide sleeve 52, so that the slide bar 53 drives the pressure plate 55 to move synchronously, and at the same time, the pressure plate 55 drives the slider 56 to move synchronously, thereby compressing the spring 58, and then one side of the PET protective film on the feeding roller 4 is pulled upward. The PET protective film is pulled out at one end, one end of the PET protective film is passed under the pressing plate 55, and the PET protective film is attached to the fixing plate 511 and pulled. After that, one end of the pulled PET protective film is passed under the cutter, and one person uses a tape measure to measure the required length and then fixes one end of the PET protective film on the receiving roller 9. Then the pulling plate 54 can be loosened, so that the pressing plate 55 will move downward under the reaction of the spring 58, and then the PET protective film can be tightly pressed between the pressing plate 55 and the fixing plate 511, so that the PET protective film can be cut smoothly. Then, the electric telescopic rod 63 is started, so that the electric telescopic rod 63 drives the docking block 64 to move downward, and then the cutting knife 10 can be driven downward synchronously through the connecting plate 65. The cutting knife 10 passes through the PET protective film and the bottom end of the cutting knife 10 is against the bottom surface of the cutting groove 7, thereby completing the PET protective film. Then, the pressing plate 55 can be pulled upward, and then the receiving roller 9 is rotated to receive the PET protective film. At the same time, after measuring the required cutting length of the PET protective film with a tape measure again, the following PET protective film can be cut.

[0039] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A PET protective film cutting device, comprising a base (1), a cutting table (2) being fixedly mounted on the upper end of the base (1), Features: A support plate (3) is symmetrically fixedly installed on the upper left end of the cutting table (2), and a feeding roller (4) is rotatably connected to the inner side of the support plate (3). A fixing mechanism (5) is installed on the left side of the upper end of the cutting table (2), and a cutting mechanism (6) is installed on the right side of the fixing mechanism (5). A cutting groove (7) is opened on the right side of the upper end of the cutting table (2). A bracket (8) is symmetrically fixedly installed on the right end face of the cutting table (2), and a receiving roller (9) is rotatably connected to the inner side of the bracket (8). A cutting knife (10) is installed on the lower end of the cutting mechanism (6).

2. A PET protective film cutting device according to claim 1, Features: The fixing mechanism (5) comprises a mounting plate (51), the lower end of the mounting plate (51) is fixedly connected to the left end face of the upper end of the cutting table (2), a sliding sleeve (52) is fixedly installed in the middle of the top of the mounting plate (51), a sliding rod (53) is slidably connected inside the sliding sleeve (52), a pulling plate (54) is fixedly installed on the top of the sliding rod (53), a pressing plate (55) is fixedly installed on the bottom of the sliding rod (53), sliding blocks (56) are symmetrically fixedly installed at the front and rear ends of the pressing plate (55), a guide rod (57) is slidably connected in the middle of the sliding block (56), a spring (58) is sleeved on the outer side of the upper end of the guide rod (57), a mounting tube (59) is symmetrically fixedly installed on the inner top of the mounting plate (51), a limiting sliding limiting rod (510) is provided inside the mounting tube (59), and a fixing plate (511) is fixedly installed on the left surface of the upper end of the base (1).

3. A PET protective film cutting device according to claim 2, Features: The top of the guide rod (57) is fixedly connected to the inner top end of the mounting plate (51), and the bottom of the guide rod (57) is fixedly connected to the left end surface of the upper end of the cutting table (2).

4. A PET protective film cutting device according to claim 3, Features: One end of the spring (58) is fixedly connected to the inner top surface of the mounting plate (51), and the other end is fixedly connected to the upper end surface of the slider (56). The lower end of the limit rod (510) is symmetrically fixedly connected to both sides of the upper end of the pressure plate (55).

5. A PET protective film cutting device according to claim 1, Features: The cutting mechanism (6) comprises a fixing frame (61), the lower end of the fixing frame (61) is symmetrically fixedly connected to the upper right end surface of the cutting table (2), the inner side of the fixing frame (61) is provided with a hollow groove (62), the inner bottom end of the hollow groove (62) is fixedly installed with an electric telescopic rod (63), the top of the output rod of the electric telescopic rod (63) is fixedly installed with a docking block (64), a connecting plate (65) is fixedly installed between two groups of docking blocks (64), a sliding groove (66) is provided in the middle of the connecting plate (65), a mounting seat (67) is slidably connected inside the sliding groove (66), guide blocks (68) are symmetrically fixedly installed on the left and right sides of the mounting seat (67), guide grooves (69) are symmetrically provided on the left and right inner walls of the sliding groove (66), a threaded column (610) is fixedly installed on the upper end of the mounting seat (67), and a knob (611) is threadedly connected to the outer surface of the threaded column (610).

6. A PET protective film cutting device according to claim 5, Features: The guide block (68) matches the guide groove (69) and is slidably connected.

7. A PET protective film cutting device according to claim 6, Features: The lower end surface of the knob (611) contacts the upper end surface of the connecting plate (65).

8. A PET protective film cutting device according to claim 1, Features: The top of the cutting knife (10) is fixedly connected to the lower end of the mounting seat (67), and the cutting knife (10) is located directly above the cutting groove (7).

Images