CN219618009U

CN219618009U - Circular knife processing device for PET film

Info

Publication number: CN219618009U
Application number: CN202320336127.5U
Authority: CN
Inventors: 刘亚双
Original assignee: Kunshan Lianyouchang Electronics Co ltd
Current assignee: Kunshan Lianyouchang Electronics Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-09-01
Anticipated expiration: 2033-02-28

Abstract

The utility model relates to a circular knife processing device for PET films, which comprises an unreeling mechanism, a circular knife mechanism and a reeling mechanism, wherein the circular knife mechanism comprises a circular roller knife die, a pressure bearing roller tangential to the circular roller knife die and an air suction device for sucking waste, the circular roller knife die comprises a circular roller internally provided with a cavity and a plurality of annular cutting edges which are arranged on the surface of the circular roller, the air suction device is connected to one end part of the circular roller and communicated with the cavity, the surface of the circular roller, which is positioned on the inner side of each cutting edge, is provided with a through hole communicated with the cavity, the through hole and the space on the inner side of the cutting edge form a material suction cavity for sucking and cutting waste together, and the diameter of one end of the material suction cavity, which is far away from the rotation axis of the circular roller, is smaller than the diameter of the other end of the material suction cavity. The utility model not only completely avoids adverse effects of diaphragm waste on the processing process and the environment, but also avoids the consumption of protective film materials, simplifies the structure of the device, reduces the processing cost and improves the production benefit.

Description

Circular knife processing device for PET film

Technical Field

The utility model relates to a circular knife processing device for PET (polyethylene terephthalate) films, which is applicable to the technical field of PET film processing.

Background

In the punching processing of the positioning holes of the PET film, a circular cutter processing device is generally used, and continuous positioning holes can be punched on the PET film while the PET film is conveyed through matching of a circular roller cutter die in the circular cutter processing device and a pressure-bearing roller below the circular roller cutter die. And because can constantly produce the diaphragm waste material when die-cut locating hole, these waste materials untimely treatment can lead to scattering everywhere, can not only influence normal die-cut processing, can also lead to the environment of processing vehicle to worsen.

In the existing circular knife processing device, a spring thimble is arranged on the inner side of a cutting edge on the surface of a circular roller cutting die, and before a PET film enters between the circular roller cutting die and a pressure-bearing roller for punching, a layer of protection film is attached below the PET film (refer to figure 1, the protection film is output by an unreeling roller a), so that the protection film and the PET film enter a punching process together. Through setting up the die-cut degree of depth of circle roller cutting die, make the cutting edge can cut thoroughly the PET membrane, but can not cut thoroughly the protection film, like this when the cutting edge accomplish the die-cut back of locating hole, the thimble can push up the diaphragm waste material on the protection film, make the diaphragm waste material still adhere to on the protection film, then wind-up roll rolling protection film (set up wind-up roll b rolling protection film in the back below of pressure-bearing roller as shown in figure 1), make it and PET membrane separation, can receive the diaphragm waste material through the protection film simultaneously and walk, accomplish the processing to the waste material.

However, since there is not enough viscosity between the film waste and the protective film, the film waste is easy to drop when the protective film is wound, and adverse effects caused by the film waste cannot be completely avoided; in addition, a large amount of protective films are consumed in the mode, so that materials are wasted, and the processing cost is increased; in addition, a group of unreeling and reeling rollers are required to be additionally arranged in the processing device, so that the equipment cost is increased.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a circular knife processing device for PET films.

The technical scheme adopted by the utility model is as follows: a circle sword processingequipment for PET membrane, including being used for exporting the unreeling mechanism of PET membrane, be used for die-cut PET membrane's circle sword mechanism, be used for rolling the winding mechanism of PET membrane, circle sword mechanism is including setting up in the circle roller cutting die of PET membrane top, set up in PET membrane below and with the tangent pressure-bearing roller of circle roller cutting die, be used for sucking out the getter device of die-cut waste material, circle roller cutting die is including the inside circle roller that has the cavity, a plurality of settings are on the circle roller surface and be annular cutting edge, getter device connects at the tip of circle roller and with the cavity intercommunication, the through-hole that is linked together with the cavity is all offered on the inboard surface of every cutting edge of circle roller, the through-hole constitutes the suction cavity that is used for sucking out die-cut waste material with the inboard space of cutting edge jointly, the diameter of the one end that circle roller axis was kept away from in suction cavity is less than the diameter of its other end. The suction device is communicated with a cavity in the round roller cutting die, and a suction cavity communicated with the cavity is arranged at the inner side of the cutting edge, so that the suction device can suck waste materials formed by punching the cutting edge through the suction cavity; and inhale the one end diameter that the material chamber is close to the PET membrane and be little, the other end diameter is big, and its horn-like shape can prevent that the waste material card from inhaling the material intracavity, ensures that the process of absorbing the waste material is smooth, has not only avoided the diaphragm waste material completely and has brought for course of working and processing environment bad influence, still makes the process of getting rid of the diaphragm waste material need not the participation of protection film, has avoided the consumption of protection film material, also need not to add the roller subassembly of unreeling and rolling protection film, has reduced processing cost, and then improves the productivity effect.

Further, if the difference between the diameter of one end of the suction cavity and the diameter of the other end is a, the diameter of the suction cavity is more than or equal to 0.01mm and less than or equal to |a| and less than or equal to 0.06mm. Through the reasonable setting to inhaling material chamber both ends diameter difference, can guarantee to inhale when removing waste material process is smooth that the angle of blade slope can not exert an influence to die-cut processing, guarantees the precision of die-cut processing.

Further, at least two groups of blades are arranged on the surface of the round roller, the at least two groups of blades are distributed along the axial direction of the round roller, and each group of blades are distributed in a circumferential array around the rotation axis of the round roller. The positioning holes with consistent intervals are convenient to be punched and processed on the two side edges of the PET film, and the subsequent processing and positioning are convenient.

Further, unreeling mechanism is including being used for unreeling the unreeling roller of PET membrane coiled material, set up at the first tensioning roller of unreeling roller rear, is convenient for tighten it when carrying the PET membrane, makes things convenient for follow-up die-cut processing.

Still further, winding mechanism is including setting up at the second tensioning roller at circular knife mechanism rear, setting up the wind-up roll at second tensioning roller rear, is convenient for tighten the PET membrane, prevents that die-cut position from appearing the error, guarantees machining precision.

Furthermore, the upper edge line of the first tensioning roller, the upper edge line of the second tensioning roller and the upper edge line of the pressure-bearing roller are positioned on the same plane, so that errors of punching positions are prevented, and machining precision is guaranteed.

Further, the air suction device is connected with one end of the round roller through the rotary joint, so that the air suction device is prevented from influencing the rotation of the round roller. Specifically, the rotary joint is in the prior art, and the structure thereof is not described herein.

Further, the round roller cutting die and the pressure bearing roller are both driving rollers.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the circular knife processing device for the PET film, the air suction device is communicated with the cavity in the circular roller, and the air suction cavity communicated with the cavity is arranged on the inner side of the cutting edge, so that the air suction device can suck the diaphragm waste generated by punching through the air suction cavity, the horn-shaped structure of the air suction cavity is used for avoiding the blockage of the waste, the smooth process of sucking the waste is ensured, the adverse effect of the diaphragm waste on the processing process and the processing environment is completely avoided, the consumption of protective film materials is avoided, the structure of the circular knife processing device is simplified, the roll shaft assembly for unreeling and reeling the protective film is not required to be additionally arranged, the processing cost is reduced, and the production benefit is further improved.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like components or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a schematic view of a prior art circular knife processing apparatus;

FIG. 2 is a schematic diagram of one embodiment of the present utility model;

FIG. 3 is a schematic view 1 of the circular roller cutting die in the embodiment shown in FIG. 2;

FIG. 4 is a schematic view of the circular roller die configuration of the embodiment of FIG. 2;

FIG. 5 is a cross-sectional view of the embodiment of FIG. 4, A-A;

the reference numerals are explained as follows:

1. an unreeling mechanism; 11. an unreeling roller; 12. a first tension roller; 2. a circular knife mechanism; 21. round roller cutting die; 211. a round roller; 212. a blade; 213. a material suction cavity; 214. a cavity; 22. a pressure bearing roller; 3. A winding mechanism; 31. a second tension roller; 32. and (5) a wind-up roller.

Description of the embodiments

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "front" and "rear" related to the directions are defined according to the conveying direction of the PET film in the circular knife processing device, specifically, the direction of the incoming material of the PET film is "front", and vice versa; the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 2 to 5, the circular knife processing device for PET film in this embodiment includes an unreeling mechanism 1 for outputting PET film, a circular knife mechanism 2 for punching PET film, and a reeling mechanism 3 for reeling PET film, which are sequentially provided from front to back.

Unreeling mechanism 1 is including being used for unreeling the unreeling roller 11 of PET membrane coiled material, setting up the first tensioning roller 12 at unreeling roller 11 rear, is convenient for tighten it when carrying the PET membrane, makes things convenient for follow-up die-cut processing.

The circular knife mechanism 2 comprises a circular roller knife die 21 arranged above the PET film, a pressure-bearing roller 22 arranged below the PET film and tangent to the circular roller knife die 21, and a suction device for sucking out punching waste, wherein the circular roller knife die 21 and the pressure-bearing roller 22 are both driving rollers, the circular roller knife die 21 comprises a circular roller 211 internally provided with a cavity 214, a plurality of annular blades 212 arranged on the surface of the circular roller 211, the suction device is connected at one end of the circular roller 211 and communicated with the cavity 214, through holes communicated with the cavity 214 are formed in the surface of the circular roller 211, which is positioned on the inner side of each blade 212, a suction cavity 213 for sucking out punching waste is jointly formed by the through holes and the space on the inner side of the blade 212, and the diameter of one end of the suction cavity 213 away from the rotation axis of the circular roller 211 is smaller than the diameter of the other end.

The winding mechanism 3 comprises a second tensioning roller 31 arranged behind the circular knife mechanism 2 and a winding roller 32 arranged behind the second tensioning roller 31, and the second tensioning roller 31 is matched with the first tensioning roller 12 to tighten the PET film conveyed to the circular knife mechanism 1, so that errors in punching positions are prevented, and machining precision is guaranteed.

The suction device is communicated with a cavity 214 in the round roller cutter die 21, and a suction cavity 213 communicated with the cavity 212 is arranged on the inner side of the blade 212, so that the suction device can suck waste punched by the blade 212 through the suction cavity 213; and inhale material chamber 213 and be close to the one end diameter of PET membrane and be little, the other end diameter is big, and its horn-like shape can prevent that the waste material card from inhaling material intracavity 213, ensures that the process of absorbing the waste material is smooth, has not only avoided the diaphragm waste material completely and has brought the harmful effects for course of working and processing environment, still makes the process of getting rid of the diaphragm waste material need not the participation of protection film, has avoided the consumption of protection film material, also need not to add the roller subassembly of unreeling and rolling protection film, has reduced the processing cost, and then improves the productivity effect.

In a more preferred embodiment, the difference between the diameter of one end and the diameter of the other end of the suction chamber 213 is set to a, and is 0.01 mm.ltoreq.a.ltoreq.0.06 mm, preferably 0.01 mm.ltoreq.a.ltoreq.0.04 mm, more preferably, |a|=0.02 mm. Through the reasonable setting to inhaling material chamber 213 both ends diameter difference, can guarantee to inhale when removing the waste material process is smooth, ensure that the angle of cutting edge 212 slope can not exert an influence to die-cut processing, guarantee the precision of die-cut processing.

In a more preferred embodiment, at least two groups of blades 212 are arranged on the surface of the round roller 211, and the at least two groups of blades 212 are arranged along the axial direction of the round roller 211, and each group of blades 212 are distributed in a circumferential array around the rotation axis of the round roller 211, so that positioning holes with consistent intervals can be punched and processed on two side edges of the PET film, and the subsequent processing and positioning are facilitated.

In a more preferred embodiment, the upper edge line of the first tensioning roller 12 and the upper edge line of the second tensioning roller 31 are positioned on the same plane with the upper edge line of the pressure roller 22, so that errors of punching positions are prevented, and machining precision is ensured.

In a more preferred embodiment, the suction device is connected to an end of the roller 211 by a swivel joint, avoiding that the suction device affects the rotation of the roller 211. Specifically, the rotary joint is in the prior art, and the structure thereof is not described herein.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A circular knife processingequipment for PET membrane, its characterized in that: including unreeling mechanism (1) that is used for exporting the PET membrane, be used for die-cut PET membrane round knife mechanism (2), be used for rolling the winding mechanism (3) of PET membrane that set gradually from the front to the back, round knife mechanism (2) including set up in round roller cutting die (21) of PET membrane top, set up in PET membrane below and with tangential pressure-bearing roller (22) of round roller cutting die (21), be used for sucking out the getter device of die-cut waste material, round roller cutting die (21) including inside round roller (211) that have cavity (214), a plurality of setting are in round roller (211) surface and be annular cutting edge (212), getter device connect round roller (211) one end and with cavity (214) intercommunication, round roller (211) be located every the inside surface of cutting edge (212) all set up with the through-hole that cavity (214) are linked together in the space of round roller cutting die (212) inboard constitutes the suction cavity (213) that is used for sucking out the die-cut waste material, suction cavity (213) keep away from the diameter of the other end round roller (211) one end that rotates in diameter of its diameter.

2. The circular knife processing apparatus for PET film according to claim 1, wherein: and if the difference between the diameter of one end of the material sucking cavity (213) and the diameter of the other end is a, the diameter of the material sucking cavity is more than or equal to 0.01mm and less than or equal to |a| and less than or equal to 0.06mm.

3. The circular knife processing apparatus for PET film according to claim 1, wherein: the surface of the round roller (211) is provided with at least two groups of blades (212), the blades (212) of the at least two groups are distributed along the axial direction of the round roller (211), and each group of blades (212) is distributed in a circumferential array around the rotation axis of the round roller (211).

4. The circular knife processing apparatus for PET film according to claim 1, wherein: the unreeling mechanism (1) comprises an unreeling roller (11) for unreeling the PET film coiled material and a first tensioning roller (12) arranged behind the unreeling roller (11).

5. The circular knife processing apparatus for PET film according to claim 4, wherein: the winding mechanism (3) comprises a second tensioning roller (31) arranged behind the circular knife mechanism (2) and a winding roller (32) arranged behind the second tensioning roller (31).

6. The circular knife processing apparatus for PET film according to claim 5, wherein: the upper edge line of the first tensioning roller (12) and the upper edge line of the second tensioning roller (31) are positioned on the same plane with the upper edge line of the pressure-bearing roller (22).

7. The circular knife processing apparatus for PET film according to claim 1, wherein: the suction device is connected with one end of the round roller (211) through a rotary joint.

8. The circular knife processing apparatus for PET film according to claim 1, wherein: the round roller cutting die (21) and the pressure roller (22) are both driving rollers.