CN210312820U

CN210312820U - Automatic cutting device for PET (polyethylene terephthalate) film

Info

Publication number: CN210312820U
Application number: CN201921192591.1U
Authority: CN
Inventors: 毕乃快
Original assignee: Suzhou Yuxinhong Plastic Packaging Co ltd
Current assignee: Suzhou Yuxinhong Plastic Packaging Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-14
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses an automatic cutting device for PET film, which comprises a base, a programmable PLC and a hydraulic cylinder, wherein a cutting table is arranged at the middle part of the upper part of the base, the upper surface of the cutting table is provided with intensive negative pressure holes, the lower end of a hydraulic rod of the hydraulic cylinder is provided with a cutting knife, an air pump is arranged inside the base, the other side of the upper surface of the base is provided with a winding roller, the rear end of the winding roller is provided with a winding mounting frame, one side of the upper end of the winding mounting frame, which is close to the winding roller, is provided with a convex plate, the lower surface of the convex plate is provided with a pressure sensor, the utility model is provided with the negative pressure holes, the PET film can be adsorbed on the cutting table by the negative pressure holes, the trouble caused by manually locking the PET film by using a pressing block is avoided, the pressure sensor is arranged, and the pressure sensor, the efficiency is higher.

Description

Automatic cutting device for PET (polyethylene terephthalate) film

Technical Field

The utility model relates to a polyester film technical field specifically is an automatic device of tailorring of PET membrane.

Background

The PET film is also named as a high-temperature resistant polyester film, has excellent physical property, chemical property, dimensional stability, transparency and recyclability, and can be widely applied to the fields of magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, package decoration, screen protection, optical mirror surface protection and the like;

the PET membrane generally rolls up into great book when production, and later need fall into the lap when going out of the arena and sell, need use the device of tailorring to decide when big book falls into the lap, generally among the prior art when the lap reaches required requirement, the staff will need to tailor forehead position both sides and use the briquetting to compress tightly manually, then the drive is tailor the device and is tailor the PET membrane, this kind of mode is comparatively inconvenient to efficiency is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic device of tailorring of PET membrane to solve among the prior art staff manual will need to tailor volume position both sides and use the briquetting to compress tightly, then the drive is tailor the device and is tailor the PET membrane, and this kind of mode is comparatively inconvenient, and the lower problem of efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic PET film cutting device comprises a base and a Programmable Logic Controller (PLC), wherein a cutting table is installed in the middle of the upper portion of the base, intensive negative pressure holes are formed in the upper surface of the cutting table, a cutting groove is formed in the middle of the upper surface of the cutting table, a cutting frame is installed in the middle of the upper portion of the base, the position of the cutting frame corresponds to the position of the cutting groove, a hydraulic cylinder is installed in the middle of the cutting frame, a cutting knife is installed at the lower end of a hydraulic rod of the hydraulic cylinder, an air pump is installed inside the base, an unwinding roller is installed on one side of the upper surface of the base, a winding roller is installed on the other side of the upper surface of the base, a winding rear installation frame is arranged at the rear end of the winding roller, a protruding plate is installed on one side, close to the winding roller, a pressure sensor is arranged on, and the power output end of the driving device is connected with the front end of the winding roller.

Preferably, the programmable PLC is installed on the front surface of the base, the output end of the pressure sensor is electrically connected with the input end of the programmable PLC, and the output end of the programmable PLC is electrically connected with the input ends of the hydraulic cylinder, the air pump and the driving device.

Preferably, the exhaust tube of the air pump is communicated with the inside of the cutting table, and the air outlet tube of the air pump is connected with the outside atmosphere.

Preferably, a guide roller is arranged between the unwinding roller and the cutting table, and a guide roller is arranged between the winding roller and the cutting table.

Preferably, the height of the guide roller is 1cm greater than the height of the cutting table.

Preferably, drive arrangement includes motor, action wheel, belt and follows the driving wheel, and the power take off end at the motor is installed to the action wheel, installs the front end at the wind-up roll from the driving wheel, and the action wheel is used for the transmission to be connected with the belt between the follow driving wheel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses set up and set up the negative pressure hole on cutting out the bench, the air pump can be bled into the negative pressure state with the region of negative pressure hole top, and when cutting out, the negative pressure hole can adsorb the PET membrane on cutting out the bench, and this has just avoided needing the artificial briquetting of using to come the PET membrane to lock the trouble of bringing.

2. The utility model discloses set up pressure sensor, when pressure sensor received pressure signal, for the state that little roll-up was finished, pressure sensor can control through PLC able to programme and tailor the sword decline and tailor, and the trouble that the device brought is tailor to unnecessary manual drive, and efficiency is higher.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the cutting table of the present invention;

FIG. 3 is a schematic view of the bottom structure of the protruding plate of the present invention;

fig. 4 is a schematic block diagram of the present invention.

In the figure: 1. unwinding rollers; 2. a guide roller; 3. cutting frame; 4. a hydraulic cylinder; 5. a cutting table; 51. a negative pressure hole; 52. cutting a groove; 6. an air pump; 7. a drive device; 8. a wind-up roll; 81. mounting the frame after winding; 82. A protruding plate; 9. a base; 10. a pressure sensor; 11. a cutting knife; 12. a programmable PLC.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 and fig. 2, in the embodiment of the present invention, an automatic cutting device for PET film, includes a base 9 and a Programmable Logic Controller (PLC) 12, a cutting table 5 is installed at the middle part of the top of the base 9, an intensive negative pressure hole 51 is opened on the upper surface of the cutting table 5, the negative pressure hole 51 is used for generating negative pressure, so as to adsorb the PET film on the upper surface of the cutting table 5, a cutting groove 52 is opened at the middle part of the upper surface of the cutting table 5, the cutting groove 52 is used as a cutting position, a cutting frame 3 is installed at the middle part of the top of the base 9, the cutting frame 3 is used for installing a hydraulic cylinder 4, the position of the cutting frame 3 corresponds to the position of the cutting groove 52, a hydraulic cylinder 4 is installed at the middle part of the cutting frame 3, a cutting knife 11 is installed at the lower end;

referring to fig. 1, an air pump 6 is arranged inside a base 9, an air exhaust pipe of the air pump 6 is communicated with the inside of the cutting table 5, an air outlet pipe of the air pump 6 is connected with the outside atmosphere, and the air pump 6 pumps the space above a negative pressure hole 51 into a negative pressure state through the air exhaust pipe;

referring to fig. 1, an unwinding roller 1 is installed on one side of the upper surface of a base 9, a winding roller 8 is installed on the other side of the upper surface of the base 9, a guide roller 2 is arranged between the unwinding roller 1 and a cutting table 5, the guide roller 2 is arranged between the winding roller 8 and the cutting table 5, the height of the guide roller 2 is larger than the height 1cm of the cutting table 5, the winding roller 8 is used for winding a PET film, the unwinding roller 1 is used for unwinding the PET film, and the guide roller 2 plays a role in guiding the PET film to prevent the PET film from contacting the cutting table 5;

referring to fig. 1 and 3, a winding mounting rack 81 is arranged at the rear end of the winding roller 8, a protruding plate 82 is arranged at one side, close to the winding roller 8, of the upper end of the winding mounting rack 81, a pressure sensor 10 is arranged on the lower surface of the protruding plate 82, when the thickness of the PET film wound by the winding roller 8 reaches the required thickness, the PET film extrudes the pressure sensor 10, and the pressure sensor 10 transmits a signal to a programmable PLC12 after detecting the pressure;

referring to fig. 1, a driving device 7 is installed inside a base 9, a power output end of the driving device 7 is connected with the front end of a winding roller 8, the driving device 7 comprises a motor, a driving wheel, a belt and a driven wheel, the driving wheel is installed at the power output end of the motor, the driven wheel is installed at the front end of the winding roller 8, the driving wheel is used for being connected with the belt in a transmission mode between the driven wheels, the motor drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the belt, and the driven wheel drives the winding roller;

referring to fig. 4, a programmable PLC12 is installed on the front surface of the base 9, an output end of a pressure sensor 10 is electrically connected with an input end of a programmable PLC12, an output end of a programmable PLC12 is electrically connected with input ends of the hydraulic cylinder 4, the air pump 6 and the driving device 7, the pressure sensor 10 can transmit a signal to a programmable PLC12 after receiving the pressure signal, the programmable PLC12 controls the driving device 7 to stop working, that is, the wind-up roll 8 stops rotating, and the programmable PLC12 operates the air pump 6, the air pump 6 forms a negative pressure region above the negative pressure hole 51, at this time, the negative pressure region has a downward suction force on the PET film, and adsorbs the PET film on the upper surface of the cutting table 5 (at this time, since the PET film receives a downward suction force, the PET film on the wind-up roll 8 can receive a leftward pulling force at the viewing angle as shown in fig. 1, the wind-up roll 8 can, the hydraulic cylinder 4 moves downwards to drive the cutting knife 11 to move downwards, and the PET film can be cut off in the cutting groove 52 when the cutting knife 11 moves downwards.

The utility model discloses a theory of operation and use flow: when the device is used, firstly, the PET film on the unwinding roller 1 is pulled to the winding roller 8, the driving device 7 is manually opened, the driving device 7 drives the winding roller 8 to rotate and wind, at the moment, the guide roller 2 guides the PT film (the PET film is in a state of not contacting with the cutting table 5 during winding), when the thickness of the PET film wound by the winding roller 8 reaches the position of the pressure sensor 10, the pressure sensor 10 receives a pressure signal and transmits the signal to the programmable PLC12, at the moment, the programmable PLC12 controls the driving device 7 to stop working, namely, the winding roller 8 stops rotating, the programmable PLC12 air pump 6 works, the air pump 6 forms a negative pressure area above the negative pressure hole 51, at the moment, the negative pressure area has downward suction force on the PET film, and adsorbs the PET film on the upper surface of the cutting table 5 (at the moment, as the PET film is subjected to the downward suction force, the PET film on the winding roller 8 is subjected to a left pulling force under the visual angle as shown, the wind-up roll 8 can slightly unreel), the programmable PLC12 controls the hydraulic cylinder 4 to move downwards, the hydraulic cylinder 4 moves downwards to drive the cutting knife 11 to move downwards, the cutting knife 11 can cut off the PET film inside the cutting groove 52 when moving downwards (the total time for the air pump 6 to work and the hydraulic cylinder 4 to drive the cutting knife 11 to cut off should have a set value, which is assumed as a), after the time length a, the programmable PLC12 controls the hydraulic cylinder 4 to ascend, and controls the air pump 6 to stop working, and the PET film is manually pulled to the replaced wind-up roll 8 from the cut-off position to be wound up next time.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a device is tailor automatically to PET membrane, includes base (9) and programmable logic controller (12), its characterized in that: the cutting table (5) is installed in the middle of the upper portion of the base (9), intensive negative pressure holes (51) are formed in the upper surface of the cutting table (5), a cutting groove (52) is formed in the middle of the upper surface of the cutting table (5), a cutting frame (3) is installed in the middle of the upper portion of the base (9), the position of the cutting frame (3) corresponds to the position of the cutting groove (52), a hydraulic cylinder (4) is installed in the middle of the cutting frame (3), a cutting knife (11) is installed at the lower end of a hydraulic rod of the hydraulic cylinder (4), an air pump (6) is installed inside the base (9), an unwinding roller (1) is installed on one side of the upper surface of the base (9), a winding roller (8) is installed on the other side of the upper surface of the base (9), a winding rear mounting frame (81) is arranged at the rear end of the winding roller (8), and a protruding plate (82) is installed on one side, close to the winding, the lower surface of the protruding plate (82) is provided with a pressure sensor (10), the inside of the base (9) is provided with a driving device (7), and the power output end of the driving device (7) is connected with the front end of the winding roller (8).

2. The automatic cutting device for the PET film according to claim 1, wherein: the programmable PLC (12) is installed on the front surface of the base (9), the output end of the pressure sensor (10) is electrically connected with the input end of the programmable PLC (12), and the output end of the programmable PLC (12) is electrically connected with the input ends of the hydraulic cylinder (4), the air pump (6) and the driving device (7).

3. The automatic cutting device for the PET film according to claim 1, wherein: the exhaust tube of the air pump (6) is communicated with the inside of the cutting table (5), and the air outlet tube of the air pump (6) is connected with the outside atmosphere.

4. The automatic cutting device for the PET film according to claim 1, wherein: a guide roller (2) is arranged between the unwinding roller (1) and the cutting table (5), and a guide roller (2) is arranged between the winding roller (8) and the cutting table (5).

5. The automatic cutting device for the PET film according to claim 4, wherein: the height of the guide roller (2) is 1cm greater than that of the cutting table (5).

6. The automatic cutting device for the PET film according to claim 1, wherein: drive arrangement (7) include motor, action wheel, belt and follow the driving wheel, and the power take off end at the motor is installed to the action wheel, installs the front end at wind-up roll (8) from the driving wheel, and the action wheel is used for the transmission to be connected with the belt from between the driving wheel.