PET (Polyethylene Terephthalate) protective film discharged waste recovery device

Abstract

The utility model relates to a PET (Polyethylene Terephthalate) protective film discharged waste recovery device which comprises a first conveying roller for conveying a product material belt, a second conveying roller for conveying a protective film material belt, a punching mechanism, a first winding roller for winding the product material belt, a second winding roller for recovering the protective film material belt, and a cleaning mechanism arranged between the punching mechanism and the second winding roller, the cleaning mechanism comprises a first scraping plate used for tightening a protective film material belt, a second scraping plate arranged below the first scraping plate and used for scraping hole waste and a waste basket arranged below the first scraping plate and the second scraping plate, and a gap allowing the protective film material belt to pass through is formed between the lower edge of the first scraping plate and the front edge of the second scraping plate. The thickness of the second scraping plate is gradually increased from front to back, and the projection of the second scraping plate on the plane perpendicular to the left-right direction is in an acute triangle shape. According to the utility model, the protective film can be reused, the cost waste is reduced, an additional waste discharge procedure is not needed, the processing efficiency is improved, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a PET protective film waste discharge recovery device, and is suitable for the technical field of film processing. BACKGROUND

[0002] In the processing of PET film products, it is usually necessary to use a punching device to continuously punch on a film material belt to process products with certain shapes and structures. In actual processing, in order to quickly separate the punched waste such as holes, a layer of PET protective film material belt is usually attached below the product material belt before punching, and the punching depth of the punching device can cut through the product material belt but not the protective film material belt. After punching, the product material belt and the protective film material belt are separated and wound, so that the punched waste such as holes is separated from the product material belt together with the protective film, realizing quick waste discharge. Although this method can quickly separate the holes on the product material belt, the protective film with punched waste adhered thereto can only be discarded as waste, and although low-cost film material can be used as the protective film, material waste will still occur, resulting in increased production cost. SUMMARY

[0003] In order to solve the defects of the prior art, the utility model provides a PET protective film waste discharge recovery device.

[0004] The utility model discloses a technical scheme is: a kind of PET protective film waste discharge recovery device, including the first conveying roller for conveying product material belt, the second conveying roller for conveying protective film material belt and located below the first conveying roller, the punching mechanism for being arranged at the rear of the first conveying roller and the second conveying roller and being used for composite product material belt and protective film material belt and punching product material belt, the first winding roller for winding product material belt after punching processing and the second winding roller for recycling protective film material belt are arranged at the rear of punching mechanism, waste discharge recovery device further includes the cleaning mechanism for removing the hole waste attached to protective film material belt and being arranged between punching mechanism and the second winding roller, cleaning mechanism includes the first scraper vertically arranged and by its lower edge taut protective film material belt, the second scraper for scraping hole waste and being arranged below the first scraper and front edge is close to the lower edge of the first scraper, waste basket is arranged below the first scraper and the second scraper, there is gap for protective film material belt to pass between the lower edge of the first scraper and the front edge of the second scraper, the thickness of the second scraper gradually increases from front to back, and the projection of the second scraper on the plane perpendicular to left and right direction is acute triangle.The product material belt and protective film material belt are conveyed respectively by the first conveying roller and the second conveying roller, then the product material belt and protective film material belt are compounded and punched by punching mechanism, then the product material belt and protective film material belt after punching are wound respectively by the first winding roller and the second winding roller, when the protective film material belt with punching waste is passed through cleaning mechanism, make protective film material belt pass through the gap formed between the lower edge of the first scraper and the front edge of the second scraper, the first scraper can tighten material belt, and by being arranged as the blade structure of front side thin and rear side thick, when material belt passes through the gap between the first scraper and the second scraper, the second scraper can scrape hole waste on material belt, and falls into the waste basket below, so that protective film material belt can be reused, reduce cost waste, and can clean waste and wind in single processing process, without processing separately, also improve production efficiency, reduce labor cost.

[0005] Further, the cleaning mechanism further includes a first pressure roller and a second pressure roller arranged respectively in front of and behind the first scraper, and an included angle formed by a line connecting an upper roller surface of the first pressure roller and a lower edge of the first scraper and a line connecting an upper roller surface of the second pressure roller and the lower edge of the first scraper is an acute angle. By cooperating the first scraper, the first pressure roller and the second pressure roller change the direction of the protective film material belt, so that when the material belt passes through the first scraper and the second pressure roller in turn from the first pressure roller, an acute angle turn is formed, so that the hole waste attached to the material belt is separated from the surface of the material belt at the turn under the action of the material toughness, which is more convenient for the second scraper to scrape the hole waste on the protective film material belt.

[0006] Further, the cleaning mechanism further includes at least one third pressure roller arranged between the punching mechanism and the first pressure roller. By the third pressure roller, the tension of the protective film material belt is improved, which is more convenient for scraping the hole waste.

[0007] Further, the thickness of the first scraper decreases from top to bottom, and the projection of the first scraper on a plane perpendicular to the left-right direction is an acute angle triangle, so that the hole waste on the material belt can be separated from the surface of the material belt at the corner and under the action of its own toughness when passing through the lower edge of the first scraper, thereby being more easily scraped off.

[0008] Further, the punching mechanism comprises a supporting roller and a cutter roller arranged above the supporting roller, the distance between the roller surface of the supporting roller and the roller surface of the cutter roller is the same as the thickness of the protective film material belt, the cutter roller and the supporting roller can not only attach the protective film material belt to the product material belt, but also simultaneously punch the product material belt, thereby improving the processing efficiency, and the distance between the cutter roller and the supporting roller ensures that the punching depth can cut through the product material belt without cutting the protective film material belt.

[0009] Due to the use of the above technical scheme, the utility model has the following advantages compared with the prior art:

[0010] The PET protective film waste removal and recycling device in the utility model is characterized in that a cleaning mechanism is arranged between the punching mechanism and the second winding roller for winding the protective film material belt, and a first scraper and a second scraper are arranged in the cleaning mechanism, so that the punching waste in the product material belt is separated from the protective film material belt, and then the punching waste is removed by the first scraper and the second scraper, and then the second winding roller is used for winding, so that the protective film can be recycled, the cost waste is reduced, the waste removal process is not needed additionally, the processing efficiency is improved, and the labor cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Some specific embodiments of the utility model will be described in detail below with reference to the drawings in an exemplary but not restrictive manner. The same reference signs in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the drawings:

[0012] Figure 1 is a structural schematic diagram of one embodiment of the utility model;

[0013] Figure 2 is Figure 1 is a structural schematic diagram of the cleaning mechanism in the embodiment shown;

[0014] The reference signs are explained as follows:

[0015] 1, first conveying roller; 2, second conveying roller; 3, punching mechanism; 31, supporting roller; 32, cutter roller; 4, first winding roller; 5, second winding roller; 6, cleaning mechanism; 61, first scraper; 62, second scraper; 63, waste basket; 64, first compression roller; 65, second compression roller; 66, third compression roller. DETAILED DESCRIPTION

[0016] The technical solutions of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] In the description of the present application, it should be noted that the terms "front", "back" related to the direction description are defined according to the conveying direction of the film material belt. Specifically, the incoming direction of the film material belt is "front", and vice versa. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0018] Reference is made to the accompanying drawings Figures 1-2The PET protective film waste discharge and recovery device in the embodiment comprises a first conveying roller 1 for conveying a product tape, a second conveying roller 2 located below the first conveying roller 1 and used for conveying a protective film tape, a punching mechanism 3 arranged behind the first conveying roller 1 and the second conveying roller 2 and used for compounding the product tape and the protective film tape and punching the product tape, a first winding roller 4 arranged behind the punching mechanism 3 and used for winding the product tape after punching, and a second winding roller 5 used for recovering the protective film tape, the waste discharge and recovery device further comprises a cleaning mechanism 6 arranged between the punching mechanism 3 and the second winding roller 5 and used for removing the product tape hole waste attached to the protective film tape, the cleaning mechanism 6 comprises a first scraper 61 arranged vertically and used for tightening the protective film tape through the lower edge thereof, a second scraper 62 arranged below the first scraper 61 and used for scraping the hole waste, with the front edge of the second scraper 62 close to the lower edge of the first scraper 61, and a waste basket 63 arranged below the first scraper 61 and the second scraper 62, the first scraper 61 and the second scraper 62 have a gap for the protective film tape to pass between the lower edge of the first scraper 61 and the front edge of the second scraper 62, the thickness of the second scraper 62 gradually increases from front to back, and the projection of the second scraper 62 on a plane perpendicular to the left-right direction is an acute angle triangle. The product tape and the protective film tape are conveyed by the first conveying roller 1 and the second conveying roller 2 respectively, then the product tape and the protective film tape are compounded and punched by the punching mechanism 3, and then the product tape after punching and the protective film tape are wound by the first winding roller 4 and the second winding roller 5 respectively, when the protective film tape with punching waste passes through the cleaning mechanism 6, the protective film tape passes through the gap between the lower edge of the first scraper 61 and the front edge of the second scraper 62, the first scraper 61 can tighten the tape, and by setting the second scraper 62 as a blade structure with thin front side and thick back side, the hole waste on the tape can be scraped by the second scraper 62 when the tape passes through the gap between the first scraper 61 and the second scraper 62, and falls into the waste basket 63 below, so that the protective film tape can be reused, the cost waste is reduced, the waste cleaning and winding operations can be performed in a single processing process, without the need for separate processing, the production efficiency is improved, and the labor cost is reduced.

[0019] In a more preferred embodiment, the cleaning mechanism 6 further comprises a first pressure roller 64 and a second pressure roller 65 arranged in front of and behind the first scraper 61 respectively, the included angle between the line connecting the upper roller surface of the first pressure roller 64 and the lower edge of the first scraper 61 and the line connecting the upper roller surface of the second pressure roller 65 and the lower edge of the first scraper 61 is an acute angle. The first pressure roller 64 and the second pressure roller 65 cooperate with the first scraper 61 to change the direction of the protective film tape, so that the tape forms an acute angle turn when passing through the first scraper 61 and the second pressure roller 65 in turn from the first pressure roller 64, so that the hole waste attached to the tape is separated from the surface of the tape at the turn under the action of the material toughness of the hole waste, which is more convenient for the second scraper 62 to scrape the hole waste on the protective film tape.

[0020] In a more preferred embodiment, the cleaning mechanism 6 further comprises at least one third pressing roller 66 arranged between the punching mechanism 3 and the first pressing roller 64. The tension of the protective film material belt is increased by the third pressing roller 66, which facilitates the scraping of the hole waste.

[0021] In a more preferred embodiment, the thickness of the first scraper 61 gradually decreases from top to bottom, and the projection of the first scraper 61 on a plane perpendicular to the left-right direction is an acute angle triangle, which facilitates the hole waste on the material belt to separate from the surface of the material belt at the corner and under the action of its own toughness when passing through the lower edge of the first scraper 61, so that the hole waste is more easily scraped.

[0022] In a more preferred embodiment, the punching mechanism 3 comprises a supporting roller 31 and a cutter roller 32 arranged above the supporting roller 31, and the distance between the roller surface of the supporting roller 31 and the roller surface of the cutter roller 32 is the same as the thickness of the protective film material belt. By cooperating the cutter roller 32 with the supporting roller 31, not only the protective film material belt can be attached under the product material belt, but also the product material belt can be punched at the same time, which improves the processing efficiency, and by setting the distance between the cutter roller 32 and the supporting roller 31, it is ensured that the punching depth can cut through the product material belt without cutting the protective film material belt.

[0023] Due to the use of the above technical scheme, the present application has the following advantages compared with the prior art:

[0024] The PET protective film waste removal and recycling device in the present application sets a cleaning mechanism between the punching mechanism and the second winding roller for winding the protective film material belt, and sets a first scraper and a second scraper in the cleaning mechanism, so that after the punching waste in the product material belt is separated from the protective film material belt, the punching waste is removed by the first scraper and the second scraper first, and then wound by the second winding roller, so that the protective film can be reused, the cost waste is reduced, and the processing efficiency is improved without additional waste removal process, and the labor cost is reduced.

[0025] The above examples are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and it cannot limit the protection scope of the present application, any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A PET protective film waste discharge recovery device, comprising a first conveying roller (1) for conveying a product tape, a second conveying roller (2) located below the first conveying roller (1) and used for conveying a protective film tape, a punching mechanism (3) arranged behind the first conveying roller (1) and the second conveying roller (2) and used for compounding the product tape and the protective film tape and punching the product tape, a first winding roller (4) arranged behind the punching mechanism (3) and used for winding the punched product tape, and a second winding roller (5) used for recovering the protective film tape, characterized in that: The waste recovery device further comprises a cleaning mechanism (6) arranged between the punching mechanism (3) and the second winding roller (5) and used for removing the product tape hole waste attached to the protective film tape, the cleaning mechanism (6) comprising a first scraper (61) arranged vertically and used for tensioning the protective film tape through the lower edge of the first scraper (61), a second scraper (62) arranged below the first scraper (61) and used for scraping the hole waste, the front edge of the second scraper (62) being close to the lower edge of the first scraper (61), a waste basket (63) arranged below the first scraper (61) and the second scraper (62), the lower edge of the first scraper (61) and the front edge of the second scraper (62) having a gap for the protective film tape to pass through, the thickness of the second scraper (62) gradually increasing from front to back, and the projection of the second scraper (62) on the plane perpendicular to the left-right direction being an acute triangle.

2. The PET protective film exhaust recovery apparatus according to claim 1, characterized by: The cleaning mechanism (6) further comprises a first pressing roller (64) and a second pressing roller (65) arranged in front of and behind the first scraper (61) respectively, the included angle between the line connecting the upper roller surface of the first pressing roller (64) and the lower edge of the first scraper (61) and the line connecting the upper roller surface of the second pressing roller (65) and the lower edge of the first scraper (61) being an acute angle.

3. The PET protective film exhaust recovery apparatus according to claim 2, characterized by: The cleaning mechanism (6) further comprises at least one third pressing roller (66) arranged between the punching mechanism (3) and the first pressing roller (64).

4. The PET protective film exhaust recovery apparatus according to claim 1, characterized by: The thickness of the first scraper (61) gradually decreases from top to bottom, and the projection of the first scraper (61) on the plane perpendicular to the left-right direction is an acute triangle.

5. The PET protective film exhaust recovery apparatus according to claim 1, characterized by: The punching mechanism (3) comprises a carrier roller (31) and a cutter roller (32) arranged above the carrier roller (31), the distance between the roller surface of the carrier roller (31) and the roller surface of the cutter roller (32) being the same as the thickness of the protective film tape.

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