CN215751301U - Film tearing device for large-area hollowed-out PET film - Google Patents

Abstract

The utility model relates to a film tearing device for a large-area hollowed-out PET film, which comprises a PET film supply unit and a film tearing unit, wherein the PET film supply unit comprises a feeding assembly of the PET film, a die which extends along the X-axis direction and is provided with a PET film positioning die cavity, and a transferring assembly which transfers the PET film on the feeding assembly to the PET film positioning die cavity; the film tearing unit comprises a truss extending along the X-axis direction, a sliding seat arranged on the truss in a sliding mode along the X-axis direction, and a film tearing chuck arranged on the sliding seat in a moving mode along the Z-axis direction. According to the utility model, on the premise of automatically loading the PET films one by one, the emerging end part of the release film is torn and the release film is gradually separated along the resultant force direction of the X axis and the Z axis, so that the probability of film damage caused by film tearing is greatly reduced.

Description

Film tearing device for large-area hollowed-out PET film

Technical Field

The utility model belongs to the technical field of laminating, and particularly relates to a film tearing device for a large-area hollowed-out PET film.

Background

At present, the laminating film adopted in the market mainly pastes the PET film with the release film removed on the surface of the corresponding metal sheet, and the film laminating machine comprises a PET film supply unit, a film tearing unit, a film sticking unit and a metal sheet transmission unit, wherein the length direction of the PET film is an X axis, the width direction is a Y axis, the thickness direction is a Z axis, the PET film supply unit mainly feeds each PET film to the film sticking unit, the film tearing unit is mainly used for tearing a release film on the surface layer of the stuck film, the film sticking unit sticks the film to be stuck to the surface of the metal sheet, the metal sheet transmission unit comprises a transmission platform with the extending direction consistent with the extending direction of the PET film and a transmission piece used for driving the transmission platform to move along the Y axis direction, the transmission platform sends the corresponding metal sheet to the position below a film pasting station formed by the film pasting unit, and then the film to be pasted is pasted on the surface of the metal sheet by the film pasting unit.

However, for the metal sheet having a plurality of holes, the area of the holes is larger than the area of the metal sheet, and thus the holes are correspondingly formed on the applied film, and before the film is applied, the release film having the holes needs to be removed and then the film is applied.

However, although there are many film tearing units in the market, the film of the large-area perforated metal sheet is damaged (e.g., torn) when the release film is torn off due to the difficulty in controlling the angle and strength of the tear film, which not only increases the rejection rate of the film, but also greatly reduces the film supply efficiency of the film.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an improved film tearing device for large-area hollow PET films.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a film tearing device of a large-area hollowed-out PET film comprises a PET film supply unit and a film tearing unit, wherein the length direction of the PET film is defined as an X axis, the width direction is a Y axis, the thickness direction is a Z axis, a plurality of hollowed-out holes corresponding to metal sheets are formed in the PET film, the PET film comprises a film to be pasted and a release film adhered to the film to be pasted and protruding from the end part of the X axis, the PET film supply unit comprises a feeding assembly of the PET film, a die extending along the X axis direction and provided with a PET film positioning die cavity, and a transfer assembly for transferring the PET film on the feeding assembly to the PET film positioning die cavity;

the film tearing unit comprises a truss extending along the X-axis direction, a sliding seat arranged on the truss in a sliding mode along the X-axis direction, and a film tearing chuck arranged on the sliding seat in a moving mode along the Z-axis direction.

Preferably, the film tearing chuck can be arranged in a mode of overturning around the Y-axis direction, the film tearing chuck clamps the outgoing end of the release film to overturn when the film is torn, the overturning angle is beta, and the beta is larger than or equal to 1 degree and smaller than or equal to 180 degrees. Under the upset of dyestripping chuck, more be favorable to from the type diaphragm and treat the separation between the pad pasting, also reduce the probability of tearing simultaneously.

Specifically, β =90 °. The damage rate is low.

According to a specific implementation and preferred aspect of the utility model, the film tearing chuck comprises a roll-over stand extending along the Y-axis direction, and at least two clamping piece assemblies which are arranged on the roll-over stand and can be clamped or loosened relatively, wherein the clamping piece assemblies are uniformly distributed at intervals along the Y-axis direction. Under the synchronous centre gripping of a plurality of clamping piece subassemblies, under relatively even peel force, more be favorable to tearing the membrane.

Preferably, there are three portions at the end of the release film, and there are three clip assemblies in one-to-one correspondence.

Specifically, each clamping piece assembly comprises a first clamping piece and a second clamping piece which move relatively to form a clamping surface, wherein the clamping surface formed by the first clamping piece and the second clamping piece is wavy, and the two wavy surfaces are arranged in a matching manner during clamping. Preventing the clamping from sliding off.

According to another specific implementation and preferable aspect of the utility model, the film tearing unit further comprises a pressing module arranged at one end of the mold, and a pressing power piece used for driving the pressing module to press or separate the end part of the film to be pasted, wherein the pressing module is a non-adhesive module. Thus, the tearing end is prevented from tilting, and the separation effect of the membrane is prevented from being influenced.

Preferably, the sheeting power part comprises a first telescopic rod for driving the non-stick module to move along the X-axis direction, and a second telescopic rod for driving the first telescopic rod and the non-stick module to move together along the Z-axis direction.

Under the setting of on-stick module, more be favorable to the separation of preforming module and treating the pad pasting, but also avoid causing treating breaking away from of pad pasting and adsorption platform.

According to another specific implementation and preferred aspect of the utility model, the feeding assembly comprises a plurality of conveying rails which are connected with a feeding end part of the PET film and are conveyed along the Y-axis direction, and a plurality of jacking brackets which are distributed in a staggered manner with the plurality of conveying rails and can move up and down along the Z-axis direction, wherein the plurality of conveying rails synchronously move to drive the PET film to move along the Y-axis direction, and the plurality of jacking brackets synchronously move and jack up the PET film on the plurality of conveying rails to be separated from the conveying surface of the conveying rails.

Preferably, each of the conveying rails comprises a plurality of linear rails extending along the Y-axis direction and arranged in parallel with each other, and directional conveying rollers arranged on the linear rails; jacking strut includes along the ejector pin that the Z direction extends, is located the ejector pin top and along the stay that the Y axle direction extends, and is a plurality of jacking strut's stay top surface flushes the setting, and the PET membrane supplies the membrane unit still includes along the shoring telescopic link of Z axle direction motion, with shoring telescopic link and many ejector pins synchronous connection's driving medium.

Furthermore, a bearing platform is arranged at the bottom of the PET film fed into the transmission track, a positioning column is arranged on the bearing platform, and a positioning hole matched with the positioning column is correspondingly arranged on the PET film, so that the PET film is tiled on the bearing platform under the alignment of the positioning hole of the positioning column.

In addition, the transfer component can convey the PET film m positioned on the jacking support frame to the die along the X-axis direction.

Specifically, the transfer assembly comprises a carrier extending along the X-axis direction and a transfer fixture arranged on the carrier in a sliding manner, wherein the transfer fixture is provided with a plurality of adsorption heads, the PET film m is clamped under the adsorption of the adsorption heads, and the PET film m is conveyed in the X-axis direction under the movement of the transfer fixture.

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

according to the utility model, on the premise of automatically loading the PET films one by one, the emerging end part of the release film is torn and the release film is gradually separated along the resultant force direction of the X axis and the Z axis, so that the probability of film damage caused by film tearing is greatly reduced.

Drawings

FIG. 1 is a schematic structural diagram of a film tearing device of the present invention;

FIG. 2 is an exploded view of the tear away device of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of the feeding assembly in FIG. 2;

FIG. 4 is an enlarged view of the mold of FIG. 2;

FIG. 5 is an enlarged view of the transfer assembly shown in FIG. 2;

FIG. 6 is a schematic view of a portion of the tear-off unit of FIG. 2;

FIG. 7 is an enlarged view of a portion of FIG. 6;

wherein: A. a PET film supply unit; 1. a feeding assembly; 10. a transfer track; 100. a linear track; 101. a directional transmission roller; 11. jacking the supporting frame; 110. a top rod; 111. a stay; 12. a load-bearing platform; 2. a mold; 20. a PET film positioning die cavity; 3. a transfer component; 30. a carrier; 31. transferring a clamp;

B. a film tearing unit; b20, trusses; b21, a sliding seat; b22, a film tearing chuck; 220. the overturning frame 221 and the clamping piece assembly; a1, a first clip; a2, a second clip; b23, tabletting module; b24, a tablet pressing power piece; b1, a first telescopic rod; b2, a second telescopic rod;

m, a PET film; m1, release film.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 and fig. 2, the film tearing device for large-area hollowed-out PET film of the present embodiment includes a PET film supply unit a and a film tearing unit B.

The length direction of definition PET membrane m is the X axle, and width direction is the Y axle, and thickness direction is the Z axle, has a plurality of fretwork holes that correspond with the sheetmetal on the PET membrane m, and PET membrane m including wait to paste the diaphragm and bond and stick on waiting to paste the diaphragm and from the type diaphragm m1 that emerges of X axle tip.

The PET film supply unit a includes a feeding unit 1 for a PET film, a mold 2 extending in the X-axis direction and having a PET film positioning cavity 20, and a transfer unit 3 for transferring the PET film m on the feeding unit 1 to the PET film positioning cavity 20.

Referring to fig. 3, the feeding assembly 1 includes a plurality of conveying rails 10 connected to a feeding end of the PET film m and conveying the PET film m along the Y-axis direction, and a plurality of lifting brackets 11 distributed in a staggered manner with respect to the plurality of conveying rails 10 and capable of moving up and down along the Z-axis direction, wherein the plurality of conveying rails 10 move synchronously to drive the PET film to move along the Y-axis direction, and the plurality of lifting brackets 11 move synchronously to lift up the PET film on the plurality of conveying rails 10 to separate from the conveying surface of the conveying rails 10.

Specifically, each of the transfer rails 10 includes a plurality of linear rails 100 extending in the Y-axis direction and disposed in parallel with each other, and a directional transfer roller 101 disposed on the linear rails 100; jacking strut 11 includes ejector pin 110 along the Z direction extension, is located ejector pin 110 top and along the stay 111 of Y axle direction extension, and the stay top surface of a plurality of jacking strut 11 flushes the setting, and PET membrane supplies membrane unit 1 still includes along the jacking telescopic link of Z axle direction motion, with jacking telescopic link and many ejector pins synchronous connection's driving medium.

In this embodiment, a bearing platform 12 is disposed at the bottom of the PET film m fed into the conveying track 10, wherein a positioning column is disposed on the bearing platform 12, and a positioning hole matched with the positioning column is correspondingly disposed on the PET film m, so that the PET film m is flatly laid on the bearing platform 12 under the positioning of the positioning hole of the positioning column.

Combine fig. 4 to show, mould 2 is the cuboid, and PET film location die cavity 20 sets up from the upper surface undercut, and forms a plurality of absorption holes at the bottom of PET film location die cavity 20's the chamber, and the location that PET film m tiled is in PET film location die cavity 20, also corresponds to be equipped with counterpoint cooperation post in the PET film location die cavity 20 simultaneously, promptly, by the cooperation of cooperation post and locating hole, implements accurate location.

As shown in fig. 5, the transfer unit 3 can transfer the PET film m on the jacking frames 11 to the mold 2 along the X-axis direction.

Specifically, the transfer unit 3 includes a carrier 30 extending along the X-axis direction, and a transfer jig 31 slidably disposed on the carrier 30, wherein a plurality of suction heads are disposed on the transfer jig 31, and the PET film m is clamped by the suction heads, and the PET film m is transported in the X-axis direction by the movement of the transfer jig 31.

Referring to fig. 6, the film tearing unit B includes a truss B20 extending along the X-axis direction, a sliding seat B21 slidably disposed on the truss B20 along the X-axis direction, a film tearing clamp B22 movably disposed on the sliding seat B21 along the Z-axis direction, a film pressing module B23 disposed at one end of the mold 2, and a film pressing power piece B24 for driving the film pressing module B23 to press or separate from the end of the separated film to be attached, wherein when tearing the film, the film tearing clamp B22 clamps the end of the separated film m1 in the mold 2 to the other end and gradually separates the film along the resultant direction of the X-axis and the Z-axis.

The film tearing chuck b22 can be arranged in a mode of overturning around the Y-axis direction, when in film tearing, the film tearing chuck b22 clamps the outgoing end of the release film and overturns for 90 degrees, then slightly moves forwards or stops at an overturning position, the pressing module b23 moves along the X-axis direction and the Z-axis direction and presses the end part of the film to be torn, then, the moving speed of the sliding seat b21 along the X-axis direction is 1m/s, the moving speed of the film tearing chuck b22 along the Y-axis direction is 0.05m/s, the release film m1 is gradually separated from the film to be stuck upwards along the resultant force direction at a relative speed, and the vertical distance from the bottom of the clamping area of the separated film tearing chuck b22 to the film to be stuck is 48 mm;

therefore, under the upset of tearing the membrane chuck, more be favorable to from the type diaphragm with treat the separation between the pad pasting, also reduce the probability of tearing simultaneously.

In this example, there are three protruding ends of the release film m1, and the film tearing clamp b22 includes a roll-over stand 220 extending along the Y-axis direction, and three clip assemblies 221 arranged on the roll-over stand 220 and capable of being clamped or loosened relatively, where the three clip assemblies 221 are arranged in one-to-one correspondence with the three protruding ends of the release film m 1. Under the synchronous centre gripping of three clamping piece subassemblies, under relatively even peel force, more be favorable to tearing the membrane.

Specifically, each clip assembly 221 includes a first clip a1 and a second clip a2 that move relative to each other to form a clamping surface, wherein the clamping surface formed by the first clip a1 and the second clip a2 is wavy, and the two wavy surfaces are matched when clamping. Preventing the clamping from sliding off.

The sheeter module b23 is a non-adhesive module. Thus, the tearing end is prevented from tilting, and the separation effect of the membrane is prevented from being influenced. Meanwhile, under the arrangement of the non-adhesive module, the separation of the tabletting module and the film to be pasted is more facilitated, and the separation of the film to be pasted and the adsorption platform is avoided.

The tablet power piece b24 comprises a first telescopic rod b1 for driving the non-stick module to move along the X-axis direction, and a second telescopic rod b2 for driving the first telescopic rod b1 and the non-stick module to move together along the Z-axis direction.

In summary, the present implementation has the following advantages:

1) under the condition of 90-degree turning of the film tearing chuck, the film to be pasted is prevented from tilting along with the film to be pasted by being matched with the downward pressing of the non-adhesive module, and meanwhile, the release type membrane is gradually and rapidly separated from the film to be pasted along the synthetic direction of relative speed and force during film tearing, so that the probability of membrane damage caused during film tearing is greatly reduced;

2) the automatic feeding of PET membrane guarantees moreover that the PET membrane levels and the piece by piece of accurate counterpoint shifts to the mould, for automatic dyestripping provides the condition.

The present invention has been described in detail in order to enable those skilled in the art to understand the utility model and to practice it, and it is not intended to limit the scope of the utility model, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims (10)

1. The utility model provides a large tracts of land fretwork PET membrane tear film device, it includes that the PET membrane supplies membrane unit and tear film unit, and wherein the length direction who defines the PET membrane is the X axle, and width direction is the Y axle, and thickness direction is the Z axle, has a plurality of fretwork holes that correspond with the sheetmetal on the PET membrane, and the PET membrane includes to treat the pad pasting piece and bonds treat that just emit from X axis tip on the pad pasting piece from type diaphragm, its characterized in that:

the PET film supply unit comprises a feeding assembly of a PET film, a die extending along the X-axis direction and provided with a PET film positioning die cavity, and a transfer assembly for transferring the PET film on the feeding assembly to the PET film positioning die cavity;

the dyestripping unit include along the truss that the X axle direction extends, slide along the X axle direction and set up slide on the truss, move along the Z axle direction and set up dyestripping chuck on the slide, during the dyestripping, the dyestripping chuck centre gripping is located in the mould from the one end that the type diaphragm emits to the other end and along the resultant force direction of X axle and Z axle progressively separate from the type diaphragm.

2. The film tearing device for the large-area hollowed-out PET film according to claim 1, characterized in that: the film tearing chuck can be arranged in a mode of overturning around the Y-axis direction, when the film is torn, the film tearing chuck clamps the emerging end of the release film to overturn, the overturning angle is beta, and the beta is larger than or equal to 1 degree and smaller than or equal to 180 degrees.

3. The film tearing device for the large-area hollowed-out PET film according to claim 2, characterized in that: β =90 °.

4. The film tearing device for the large-area hollowed-out PET film according to claim 2, characterized in that: the film tearing chuck comprises a roll-over stand extending along the Y-axis direction, and clamping piece assemblies which are arranged on the roll-over stand and can be clamped or loosened relatively, wherein the clamping piece assemblies are at least two and are distributed at intervals along the Y-axis direction.

5. The film tearing device for the large-area hollowed-out PET film according to claim 4, wherein: there are three from the end of emerging of type diaphragm, clamping piece subassembly one-to-one have three.

6. The film tearing device for the large-area hollowed-out PET film according to claim 5, wherein: each clamping piece assembly comprises a first clamping piece and a second clamping piece which move relatively to form a clamping surface, wherein the clamping surface formed by the first clamping piece and the second clamping piece is wavy, and the two wavy surfaces are arranged in a matching way during clamping.

7. The film tearing device for the large-area hollowed-out PET film according to claim 4, 5 or 6, wherein: the film tearing unit further comprises a pressing piece module arranged at one end of the die and a pressing piece power piece used for driving the pressing piece module to be pressed or separated to be pressed on the end portion of the film to be pasted, wherein the pressing piece module is a non-adhesive module.

8. The film tearing device for the large-area hollowed-out PET film according to claim 1, characterized in that: the feeding assembly comprises a plurality of conveying rails which are connected with the feeding end part of the PET film and are conveyed along the Y-axis direction, and a plurality of jacking brackets which are distributed in a staggered mode and can move up and down along the Z-axis direction, wherein the conveying rails synchronously move to drive the PET film to move along the Y-axis direction, and the jacking brackets synchronously move and push the PET film on the conveying rails upwards to be separated from the conveying surface of the conveying rails.

9. The film tearing device for the large-area hollowed-out PET film according to claim 8, wherein: each transmission rail comprises a plurality of linear rails which extend along the Y-axis direction and are arranged in parallel, and directional transmission rollers arranged on the linear rails; jacking strut includes along the ejector pin that the Z direction extends, is located the ejector pin top and along the stay that the Y axle direction extends, and is a plurality of jacking strut's stay top surface flushes the setting, and the PET membrane supplies the membrane unit still includes along the shoring telescopic link of Z axle direction motion, with shoring telescopic link and many ejector pins synchronous connection's driving medium.

10. The film tearing device for the large-area hollowed-out PET film according to claim 8 or 9, wherein: the bottom of the PET film fed into the transmission track is provided with a bearing platform, wherein the bearing platform is provided with a positioning column, and the PET film is correspondingly provided with a positioning hole matched with the positioning column, so that the PET film is tiled on the bearing platform under the alignment of the positioning hole of the positioning column.

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