CN113500848A - Roll-to-roll film tearing machine and film separation knife edge mechanism - Google Patents

Abstract

The invention relates to a roll-to-roll film tearing machine and a film separation knife edge mechanism, wherein the film separation knife edge mechanism comprises a supporting plate, a knife edge plate, a first knife edge, a second knife edge, two stop blocks and two angle adjusting seats, a back film penetrates through a gap between the first knife edge and the second knife edge after an incoming material composite film passes through the first knife edge, and a product film is moved forwards in a translation mode from the first knife edge to the second knife edge after being separated from the back film. In the production process, the feeding shaft can continuously move at the set position when sensing that the position of the incoming composite film is not in the set position, so that the incoming composite film can shift left and right relative to the advancing direction during feeding. The two stop blocks are matched with the two angle adjusting seats, so that the knife edge plate, the first knife edge and the second knife edge generate reverse rotation, the first knife edge is ensured to be attached to and parallel to the composite film, and the phenomenon that the product film slides to cause side transmission holes to be damaged due to the fact that the product film cannot be attached to the first knife edge and wrinkles caused by uneven stress are prevented.

Description

Roll-to-roll film tearing machine and film separation knife edge mechanism

Technical Field

The invention relates to the technical field of film tearing, in particular to a roll-to-roll film tearing machine and a film separating knife edge mechanism.

Background

In the current roll-to-roll film tearing machine, the most common scheme of the film breaking away knife edge heating module is that the film breaking away knife edge is directly locked above a heating plate by screws, and the heating plate is locked above a fixed machine table support by screws. Because of the uneven incoming material, the incoming material is deviated to the left and right with respect to the advancing direction when being fed on the feeding shaft. In the production process, the back film separated from the knife edge and the back film guide film can continuously slide, even when the sliding amount is overlarge, a pause point can be caused, so that the product film has a wrinkled quality abnormity phenomenon, and the side transmission hole is seriously damaged.

Disclosure of Invention

In view of the above, it is desirable to provide a roll-to-roll film tearing machine and a film detachment blade mechanism that can avoid the occurrence of wrinkles and damage of side transmission holes.

A film detachment blade mechanism, comprising:

the support plate is provided with avoidance openings, and two opposite inner side walls of the avoidance openings are provided with first cambered surfaces;

the knife edge plate is borne on the supporting plate and corresponds to the avoidance opening, two opposite outer side surfaces of the knife edge plate are second arc surfaces, and the second arc surfaces are matched with the first arc surfaces;

the first knife edge is arranged on the knife edge plate;

the second knife edge is arranged on the knife edge plate, a gap is formed between the second knife edge and the first knife edge, and the gap is positioned in the avoiding opening;

the two stop blocks are respectively arranged on the knife edge plate and extend to the upper part of the supporting plate, and a space is reserved between the stop blocks and the supporting plate; and

two angle modulation seats, set up respectively in the backup pad, the one end of angle modulation seat with dog elasticity is contradicted, so that the edge of a knife board first edge of a knife with the second edge of a knife can for backup pad turned angle.

In one embodiment, the angle adjusting base includes a base body, an elastic member and a push rod, one end of the base body is open and is hollow, the elastic member is disposed in the base body, one end of the push rod extends into the base body, the other end of the push rod abuts against the stop block, and two ends of the elastic member respectively abut against the base body and the push rod.

In one embodiment, the angle adjusting device further comprises a coupling seat, wherein the angle adjusting seat is arranged on the coupling seat, and the coupling seat is arranged on the supporting plate.

In one embodiment, the second knife edge is provided with a strip-shaped hole, and the gap between the second knife edge and the first knife edge is adjusted through the strip-shaped hole.

In one embodiment, auxiliary supporting strips are formed on the second knife edge in a protruding mode and close to the side edge of the first knife edge, and the auxiliary supporting strips are used for supporting the product films.

In one embodiment, the auxiliary supporting strips are circular arc-shaped protruding strips, and the circular arc-shaped protruding strips extend along the length direction of the second knife edge.

In one embodiment, the surface of the second knife edge is provided with a scratch-resistant layer for preventing scratching of the product film.

In one embodiment, the supporting plate is further provided with a supporting portion for supporting the knife-edge plate.

A roll-to-roll film tearing machine comprising:

a machine table support;

the feeding assembly is rotatably arranged on the machine table bracket;

the back membrane main speed assembly is rotatably arranged on the machine table bracket and is positioned behind the station of the feeding assembly;

the membrane separation knife edge mechanism comprises a machine table bracket, a supporting plate and a knife edge mechanism, wherein the supporting plate is fixed on the machine table bracket; and

and the material receiving assembly is rotatably arranged on the machine table support and is positioned behind the station where the film is separated from the knife edge mechanism.

In one embodiment, the device further comprises a guide wheel which is arranged below the first knife edge in a swinging mode.

The membrane separation knife edge mechanism at least has the following advantages:

after the incoming composite film passes through the first knife edge, the back film penetrates through a gap between the first knife edge and the second knife edge, and the product film is separated from the back film and then moves forwards in a translation mode from the first knife edge to the second knife edge. Because the supplied material complex film is uneven, consequently, in the production process, the pay-off axle can be because of sensing the supplied material complex film position and constantly moving on the position of setting for, can take place for the direction of advance when leading to supplied material complex film pay-off and squint about. If the incoming material composite film deviates leftwards relative to the advancing direction, the right side of the first knife edge is contacted with the composite film firstly, the composite film applies a compression force to the right side of the first knife edge, the compression force is transmitted to the right angle adjusting seat through the right stop block, the right angle adjusting seat adjusts the whole knife edge plate, the first knife edge and the second knife edge to rotate anticlockwise along the first cambered surface and the second cambered surface after being stressed, and therefore the left side of the first knife edge is also contacted with the incoming material composite film; similarly, if the supplied material complex film squints to the right for the direction of advance, then the left side of first edge of a knife contacts with the supplied material complex film earlier, and the complex film exerts the compressive force to the left side of first edge of a knife, and this compressive force transmits to the angle modulation seat on the left side through the dog on the left side, and the angle modulation seat atress on the left side is adjusted whole edge of a knife board, first edge of a knife and second edge of a knife and is followed first cambered surface and second cambered surface clockwise rotation to guarantee that the right of first edge of a knife also contacts with the supplied material complex film. The first knife edge is adjusted in real time through the angle adjusting seat to be attached to and parallel to the composite film, so that the phenomenon that the side transmission hole is damaged due to the fact that the product film slides and wrinkles caused by uneven stress are prevented from being attached to the first knife edge due to the fact that the product film is not attached to the first knife edge is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a top view of a membrane detachment knife edge mechanism in one embodiment;

FIG. 2 is a partial schematic view of FIG. 1;

FIG. 3 is another partial schematic view of FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic diagram of an incoming composite membrane shifted to the left with respect to the forward direction in one embodiment;

fig. 6 is a schematic diagram illustrating the rightward shift of the incoming composite film with respect to the forward direction according to an embodiment.

Description of reference numerals:

10. a film detachment blade mechanism; 100. a support plate; 200. a knife edge plate; 300. a first blade edge; 400. a second knife edge; 500. a stopper; 600. a coupling seat; 700. an angle adjusting seat; 110. avoiding the mouth; 120. a first arc surface; 130. a heating member; 210. a second arc surface; 140. a support portion; 301. a gap; 410. a strip-shaped hole; 420. auxiliary supporting bars; 710. a base body; 720. a push rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In one embodiment, the roll-to-roll film tearing machine is mainly used for tearing an incoming composite film (e.g., a COF TAPE). Generally, the incoming composite film includes a release film, a product film and a back film, wherein the release film and the back film are respectively disposed on two opposite sides of the product film for providing protection to the product film. There is usually no glue between the release film and the product film, and the two are usually easy to separate. The back film is usually bonded with the product film through glue, and the back film is difficult to separate from the product film, so the technical scheme is mainly used for tearing the back film from the product film aiming at the film tearing between the product film and the back film. Specifically, the roll-to-roll film tearing machine comprises a machine table support, a feeding assembly, a back film main speed assembly, a film separation knife edge mechanism 10 and a receiving assembly, wherein the machine table support is mainly used for the feeding assembly and the back film main speed assembly. The film separation knife edge mechanism 10 and the material receiving assembly provide supporting force.

The feeding component is rotatably arranged on the machine table bracket. The rotation direction of the feeding component is opposite to that of the back film main speed component, and the purpose is to enable the product film to be better attached to the film separating knife edge mechanism 10. The feeding component is arranged at the foremost end of the machine table bracket. Specifically, the feeding assembly comprises a feeding shaft, an edge finder sensor and a controller, and the incoming composite film is sleeved on the feeding shaft in a coiled mode so as to be passively released. The edge finder sensor is used for sensing the position of the incoming material composite film, if the edge finder sensor senses that the incoming material composite film is not in the set position, the edge finder sensor transmits a signal back to the controller, and the controller drives the feeding shaft to continuously move to correspond. The back membrane main speed assembly is rotatably arranged on the machine table support and is located behind the station of the feeding assembly. The back film main speed assembly is used for providing main rotating power to enable the incoming composite film on the feeding assembly to move forwards. The material receiving assembly is rotatably arranged on the machine table support and is positioned behind the station of the film separation knife edge mechanism 10.

Receive the material subassembly and receive the material axle including receiving the material axle from type membrane, product membrane usually and the notacoria, receive the material axle from type membrane and be used for receiving material from the type membrane, product membrane receives the material axle and is used for receiving the product membrane, and notacoria is received the material axle and is used for receiving the material to the notacoria. The product film demoulded by the film separation knife edge mechanism 10 is received by the product film receiving shaft, and the back film demoulded by the film separation knife edge mechanism 10 is received by the back film receiving shaft.

As shown in fig. 1 to 3, the film detachment blade mechanism 10 in one embodiment includes a support plate 100, a blade plate 200, a first blade 300, a second blade 400, two stoppers 500, two coupling seats 600, and two angle adjustment seats 700.

Referring to fig. 2, an escape opening 110 is formed on the support plate 100, and two opposite inner sidewalls of the escape opening 110 are formed with first arc surfaces 120. Specifically, the radian of the first arc surface 120 ranges from ± 5 pi/180 rad with respect to the Y-axis (longitudinal direction) of the plane on which fig. 2 is located. The first arc surface 120 is a concave arc surface.

In this embodiment, the supporting plate 100 is a heating plate having a heating function, and the heating plate is used for heating the adhesive layer between the product film and the back film, so as to improve the demolding efficiency. Specifically, be provided with heating member 130 on the hot plate, heating member 130 extends the setting along the direction of advance of supplied materials complex film, and heating member 130 mainly used produces the heat, and the heat heats supplied materials complex film through the hot plate to melt the glue between product membrane and the notacoria, provide dyestripping efficiency. For example, in the present embodiment, the number of the heating members 130 is four, and the four heating members 130 are uniformly spaced on the heating plate. Of course, in other embodiments, the support plate 100 may be a general plate without a heating function, and in this case, a cold mold release method is performed, and the occurrence of curling of the product film after the mold release can be prevented by using the cold mold release method.

Referring to fig. 3, a cutting edge plate 200 is supported on the supporting plate 100 and corresponds to the avoiding opening 110, two opposite outer side surfaces of the cutting edge plate 200 are second arc surfaces 210, and the second arc surfaces 210 are matched with the first arc surfaces 120. The second arc surface 210 is a convex arc surface. Specifically, the radian range of the second arc 210 is also + -5 π/180rad, with respect to the Y-axis (longitudinal) of the plane of FIG. 3. Accordingly, the knife edge plate 200 may be rotated to the left or right by an angle of ± 5 ° with respect to the support plate 100. As shown in fig. 2, the supporting plate 100 is further provided with a supporting portion 140, and the supporting portion 140 is used for supporting the knife-edge plate 200. Specifically, the supporting portion 140 is a plate-shaped structure protruding from the first arc surface 120, and the knife-edge plate 200 is carried on the supporting portion 140.

Referring to fig. 3 and 4, the first blade 300 is mounted on the blade plate 200. Specifically, the first blade 300 is screwed to the blade plate 200. The second knife edge 400 is installed on the knife edge plate 200, and a gap 301 is formed between the second knife edge 400 and the first knife edge 300, and the gap 301 is located in the avoiding opening 110. Before the back membrane and the product membrane are subjected to demoulding, the foremost ends of the back membrane and the product membrane are separated, then the product membrane is connected with the product membrane guiding membrane on the product membrane material receiving shaft, and the back membrane is connected with the back membrane guiding membrane on the back membrane material receiving shaft. Then the back film and the product film are subjected to demoulding through the first knife edge 300, after the back film and the product film are subjected to demoulding, the back film passes through a gap 301 between the first knife edge 300 and the second knife edge 400, and normally, the back film needs to be attached to the first knife edge 300, and the product film moves forwards from the upper surface of the second knife edge 400.

Further, the second knife edge 400 is provided with a strip-shaped hole 410, and the second knife edge 400 adjusts the gap 301 between the second knife edge 400 and the first knife edge 300 through the strip-shaped hole 410. Specifically, the relative position of the second knife edge 400 with respect to the knife edge plate 200 may be adjusted by the elongated hole 410 of the second knife edge 400, and then the second knife edge 400 is assembled to the knife edge plate 200 with screws. At the moment that the product film is separated from the back film, the product film sinks under the driving of the back film main speed assembly, so that the gap 301 between the first knife edge 300 and the second knife edge 400 can be adjusted to reduce the sinking amount of the product film.

Further, the side edge of the second knife edge 400 close to the first knife edge 300 protrudes upwards to form an auxiliary supporting strip 420, and the auxiliary supporting strip 420 is used for supporting a product film to prevent the product film from sinking after the product film is separated from a back film. Specifically, in this embodiment, the auxiliary supporting bar 420 is a circular arc protruding bar extending along the length direction of the second knife edge 400. The auxiliary supporting strip 420 is designed into a circular arc-shaped protruding strip, so that the auxiliary supporting strip 420 can be prevented from generating sharp contact on the product film after demoulding to scratch the product film.

Further, the surface of the second blade 400 is provided with a scratch-proof layer (not shown) for preventing the product film from being scratched. After the product film and the back film are separated, the product film moves forwards from the upper surface of the second knife edge 400, so a scratch-proof layer is required to be arranged between the surface of the second knife edge 400 and the product film to protect the product film. Specifically, the scratch-resistant layer can be made of a teflon material, and a product film after demoulding can be well protected.

The two stoppers 500 are respectively installed on the cutting edge plate 200 and extend above the supporting plate 100, and a space is formed between the stoppers 500 and the supporting plate 100. That is, both the stoppers 500 are fixedly mounted on the cutting edge plate 200 without direct contact with the support plate 100. Specifically, the two stoppers 500 may be fixedly mounted on the cutting edge plate 200 by screws.

Referring to fig. 2, two coupling seats 600 are respectively installed on the support plate 100. Specifically, the coupling seat 600 may be fastened to the support plate 100 by screws. Two angle adjusting seats 700 are respectively disposed on the coupling seat 600, and one end of the angle adjusting seat 700 elastically abuts against the stopper 500, so that the knife edge plate 200, the first knife edge 300, and the second knife edge 400 can rotate by an angle relative to the supporting plate 100.

Specifically, in this embodiment, the angle adjusting base 700 includes a base 710, an elastic member (not shown) and a push rod 720, one end of the base 710 is open and hollow, the elastic member is disposed in the base 710, one end of the push rod 720 extends into the base 710, the other end of the push rod 720 abuts against the stopper 500, and two ends of the elastic member respectively abut against the base 710 and the push rod 720. When one of the stoppers 500 applies a pressing force to the corresponding push rod 720, the push rod 720 feeds back a reaction force to the stopper 500 under the reaction force of the elastic member, so that the stopper 500 reversely rotates, and further the knife edge plate 200, the first knife edge 300 and the second knife edge 400 reversely rotate to serve as buffering and balancing.

Further, the seat body 710 is screwed to the coupling seat 600 by a screw manner. Namely, the seat body 710 is provided with external threads, the coupling seat 600 is provided with mounting holes, the mounting holes are internally provided with internal threads, and the assembly of the seat body 710 and the coupling seat 600 is completed through the external threads on the seat body 710 and the internal threads on the coupling seat 600, which is convenient and fast. Of course, in other embodiments, the coupling seat 600 may be omitted and the angle-adjusting seat 700 may be directly mounted on the support plate 100.

The roll-to-roll film tearing machine in the embodiment further comprises a guide wheel, wherein the guide wheel can be arranged below the first knife edge 300 in a swinging mode. The guide wheel is mainly used for changing the movement direction of the stripped back film, and the guide wheel can be arranged below the first knife edge 300 in a swinging mode, so that an angle of 180 degrees can be formed between the stripped back film and a product film and the back film which are not stripped, and the stripping is facilitated.

The film detachment blade mechanism 10 has at least the following advantages:

after the incoming composite film passes through the first knife edge 300, the back film passes through a gap 301 between the first knife edge 300 and the second knife edge 400, and the product film is separated from the back film and then moves forwards in a translation mode from the first knife edge 300 to the second knife edge 400. Because the supplied material complex film is uneven, consequently, in the production process, the limit finder inductor of pay-off axle rear can be because of the sensing not in the position of setting for the supplied material complex film position, and limit finder sensor passback signal gives the controller, and the controller orders about the pay-off axle and constantly removes to respond to, can take place for the direction of advance when leading to supplied material complex film pay-off and squint about.

Referring to fig. 5, if the incoming composite film is shifted to the left (as shown by the dotted line) relative to the advancing direction, the right side of the first knife edge 300 contacts the composite film first, the composite film applies a pressing force to the right side of the first knife edge 300, the pressing force is transmitted to the right angle adjusting seat 700 through the right stopper 500, and the right angle adjusting seat 700 adjusts the entire knife edge plate 200, the first knife edge 300, and the second knife edge 400 to rotate counterclockwise along the first arc surface 120 and the second arc surface 210 after being applied with a force, so as to ensure that the left side of the first knife edge 300 also contacts the incoming composite film, and further ensure that the first knife edge 300 is attached to and parallel to the incoming composite film (as shown by the solid line).

Referring to fig. 6, if the incoming composite film is shifted to the right (as shown by the dotted line) relative to the advancing direction, the left side of the first knife edge 300 first contacts with the incoming composite film, the composite film applies a pressing force to the left side of the first knife edge 300, the pressing force is transmitted to the left angle adjusting seat 700 through the left stopper 500, and the left angle adjusting seat 700 receives the force to adjust the whole knife edge plate 200, the first knife edge 300, and the second knife edge 400 to rotate clockwise along the first arc surface 120 and the second arc surface 210, so as to ensure that the right side of the first knife edge 300 also contacts with the incoming composite film, and further ensure that the first knife edge 300 is attached to and parallel to the incoming composite film (as shown by the solid line).

The first knife edge 300 is adjusted to be attached to and parallel to the composite film in real time through the angle adjusting seats 700 on the left side and the right side, so that the phenomenon that the product film slides to cause side transmission holes to be damaged due to the fact that the product film cannot be attached to the first knife edge 300 and wrinkles caused by uneven stress is avoided.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "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 invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

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 invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, 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 an intermediate. 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.

Claims (10)

1. A membrane detachment knife edge mechanism, comprising:

the support plate is provided with avoidance openings, and two opposite inner side walls of the avoidance openings are provided with first cambered surfaces;

the knife edge plate is borne on the supporting plate and corresponds to the avoidance opening, two opposite outer side surfaces of the knife edge plate are second arc surfaces, and the second arc surfaces are matched with the first arc surfaces;

the first knife edge is arranged on the knife edge plate;

the second knife edge is arranged on the knife edge plate, a gap is formed between the second knife edge and the first knife edge, and the gap is positioned in the avoiding opening;

the two stop blocks are respectively arranged on the knife edge plate and extend to the upper part of the supporting plate, and a space is reserved between the stop blocks and the supporting plate; and

two angle modulation seats, set up respectively in the backup pad, the one end of angle modulation seat with dog elasticity is contradicted, so that the edge of a knife board first edge of a knife with the second edge of a knife can for backup pad turned angle.

2. The membrane separation blade mechanism according to claim 1, wherein the angle adjustment seat comprises a seat body, an elastic member and a push rod, one end of the seat body is open and hollow, the elastic member is disposed in the seat body, one end of the push rod extends into the seat body, the other end of the push rod abuts against the stopper, and two ends of the elastic member respectively abut against the seat body and the push rod.

3. The film detachment blade mechanism of claim 2, further comprising a coupling seat, the angle adjustment seat being disposed on the coupling seat, the coupling seat being disposed on the support plate.

4. The film detachment blade mechanism of claim 1, wherein the second blade is provided with an elongated hole, and the second blade is adjusted to have a gap with the first blade through the elongated hole.

5. The film detachment knife edge mechanism of claim 1, wherein the second knife edge has a secondary support strip formed on the side edge adjacent to the first knife edge and protruding upward, and the secondary support strip is used for supporting the product film.

6. The film detachment knife edge mechanism of claim 5, wherein the auxiliary support strips are circular arc-shaped protruding strips extending along the length direction of the second knife edge.

7. The film detachment blade mechanism of claim 1, wherein a surface of said second blade is provided with a scratch-resistant layer for preventing scratching of the product film.

8. The film detachment knife edge mechanism of claim 1, wherein the support plate is further provided with a support portion for supporting the knife edge plate.

9. The utility model provides a roll-to-roll dyestripping machine which characterized in that includes:

a machine table support;

the feeding assembly is rotatably arranged on the machine table bracket;

the back membrane main speed assembly is rotatably arranged on the machine table bracket and is positioned behind the station of the feeding assembly;

the membrane detachment knife edge mechanism of any one of claims 1 to 8, said support plate being fixed to said machine support; and

and the material receiving assembly is rotatably arranged on the machine table support and is positioned behind the station where the film is separated from the knife edge mechanism.

10. The roll-to-roll film tearing machine according to claim 9, further comprising a guide wheel swingably disposed below the first knife edge.

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