CN115071118A

CN115071118A - Shape correcting mechanism of edge warping membrane material and thin film stretching device

Info

Publication number: CN115071118A
Application number: CN202210660469.2A
Authority: CN
Inventors: 汤智勇; 何汉昭; 梁达辉
Original assignee: Mce Stretching Industry Co ltd
Current assignee: Mce Stretching Industry Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-09-20
Anticipated expiration: 2042-06-13
Also published as: CN115071118B

Abstract

The invention relates to an orthopedic mechanism and a film stretching device for a warped edge film. The first clamping roller and the second clamping roller are arranged at intervals up and down. The first reshaping piece is coaxially arranged with the first clamping roller, the first reshaping piece is provided with a first reshaping part which is mutually abutted with the edge warping part of the edge warping film material, and the diameter of the first reshaping part is larger than that of the first clamping roller. Before the limit membrane material of sticking up is pressed from both sides the centre gripping step by the chain, in the time of first double-layered roller and second double-layered roller centre gripping post stick up limit membrane material promptly, still through the mutual butt of the limit portion of sticking up of first orthopedic portion with stick up limit membrane material, under the effect of first orthopedic portion, can realize sticking up the limit portion orientation of sticking up the limit membrane material rather than sticking up the opposite direction bending to stick up the limit portion to stick up limit membrane material and play orthopedic effect. After the edge warping film material leaves the orthopedic mechanism, the edge of the film material can be in the absorption range of the clamping opening of the chain clamp when being clamped by the chain clamp, and the clamping effect on the film material and the stretching stability of the film are ensured.

Description

Shape correcting mechanism of edge warping membrane material and thin film stretching device

Technical Field

The invention relates to the technical field of film stretching, in particular to an orthopedic mechanism of a warped edge film and a film stretching device.

Background

After being extruded and cast, the polymer film material formed by casting is sent into a high-temperature oven for transverse or synchronous stretching treatment: the two sides of the chain clamp are clamped by the chain clamp along the track at the entrance of the oven, and the chain clamp is separated from the chain clamp at the exit of the oven after the stretching treatment, and then the subsequent traction and coiling processes are carried out.

Generally, the chain clamp jaws open and close the clamp by rotating, and the opening degree of the clamping opening (the distance between the clamping jaws and the clamping surface of the clamp body when the clamping jaws are in the clamping opening state) is determined by the operating characteristics of the chain clamp jaws, and is usually about 6 mm. In addition, in order to ensure the stretching quality, the film material is required to be slightly tensioned in the transverse direction when being clamped by the chain clamps on the two sides of the track, and the clamping amount of the chain clamps to the end parts of the film material is kept consistent and stable.

Conventionally, for the production of special polymer film materials with a large amount of additives, such as TAC solvent films, a large amount of volatile substances are contained during molding, local physical property difference is often formed at the edge part of the TAC solvent film due to the fact that the volatile substances are more easily separated out, the TAC solvent film is expressed as a serious unstable edge raising phenomenon, the edge raising amplitude even exceeds the absorption range (generally about 6mm) of a chain clamp on the film materials, and the clamping stability and effectiveness of the chain clamp on the film materials are influenced. Meanwhile, the weight of the film is increased due to the fact that a large amount of solvent is contained, once the film leaves the transverse support of the guide roller, the middle position of the film is prone to being warped downwards, and the phenomena of upwarping and edge warping are caused, so that the normal clamping effect of the chain clamp on the film, the production stability and the implementation of high-precision transverse stretching ratio are affected.

Disclosure of Invention

Based on this, need overcome prior art's defect, provide an orthopedic mechanism and film stretching device of stick up limit membrane material, it can make membrane material limit portion all be in the absorption scope of the mouth of clamp when being pressed from both sides by the chain clamp, has guaranteed the clamping effect to the membrane material, and film stretching stability.

The technical scheme is as follows: an orthopedic mechanism for a raised edge membrane, the orthopedic mechanism for a raised edge membrane comprising:

the device comprises a first clamping roller and a second clamping roller, wherein the first clamping roller and the second clamping roller are arranged at intervals up and down and are used for clamping a warped edge membrane material;

the first reshaping part is coaxially arranged with the first clamping roller and is provided with a first reshaping part which is used for being mutually abutted with a raised edge part of the raised edge membrane material, and the diameter of the first reshaping part is larger than that of the first clamping roller.

Foretell curling mechanism of limit membrane material, before the limit membrane material is pressed from both sides the centre gripping step by the chain, because the diameter of first orthopedic portion is greater than the diameter of first double-layered roller, when first double-layered roller and second double-layered roller centre gripping post stick up limit membrane material promptly, still stick up the limit portion through first orthopedic portion and stick up the limit membrane material and mutually butt, under the effect of first orthopedic portion, can realize sticking up the limit portion orientation of limit membrane material rather than the opposite direction bending of direction of sticking up to stick up the limit portion to stick up the limit membrane material and play orthopedic effect. Like this when the limit membrane material that sticks up leaves orthopedic mechanism after, can make the limit portion of membrane material all be in the absorption scope of the mouth that presss from both sides of chain clamp when being pressed from both sides the centre gripping by the chain, guaranteed the clamping effect to the membrane material, with film tensile stability.

In one embodiment, the reshaping mechanism of the raised edge membrane further comprises a second reshaping piece which is arranged corresponding to the position of the first reshaping piece; the second reshaping piece and the second clamping roller are coaxially arranged, the second reshaping piece is provided with a second reshaping part which is used for being mutually abutted to a raised edge part of the raised edge film, and the diameter of the second reshaping part is smaller than that of the second clamping roller.

In one embodiment, the diameter of the first orthotic tends to increase in a direction away from the first nip roll; the diameter of the second orthopedic portion decreases in a direction away from the second nip roll.

In one embodiment, the first orthotic and the second orthotic are provided with a gap that is greater than or equal to the thickness of the raised edge membrane.

In one embodiment, the first orthotic is removably mounted to the first nip roller; the second orthopedic member is detachably mounted on the second nip roller.

In one embodiment, the orthopedic mechanism of the raised edge membrane further comprises a bracket; the first clamping roller and the second clamping roller are arranged on the bracket at intervals up and down; the second nip roller is adjustable in position in a height direction along the support.

In one embodiment, the first nip roller is a press roller, and the first nip roller is connected with the bracket through an elastic member or a pneumatic member.

In one embodiment, the support is a C-shaped frame; and/or the reshaping mechanism of the edge curling membrane material further comprises a base, and the support is arranged on the base in a position-adjustable manner along the axial direction of the first clamping roller.

In one embodiment, the axis of the first clamping roller and the transverse direction of the edge warping film material form an included angle; and/or the first nip roller and the second nip roller have the same diameter.

The film stretching device comprises the straightening mechanism of the edge curling film, and the straightening mechanism is arranged at the inlet of a film stretching track.

Foretell film stretching device, before the limit membrane material is pressed from both sides the centre gripping step by the chain, because the diameter of first orthopedic portion is greater than the diameter of first double-layered roller, when first double-layered roller and second double-layered roller centre gripping post stick up limit membrane material promptly, still stick up the limit portion through first orthopedic portion and stick up limit membrane material and mutually butt, under the effect of first orthopedic portion, can realize sticking up the limit portion orientation of limit membrane material rather than the bending of the opposite direction of sticking up direction to stick up the limit portion to stick up the limit membrane material and play orthopedic effect. Like this when the limit membrane material that sticks up leaves orthopedic mechanism after, can make the limit portion of membrane material all be in the absorption scope of the mouth that presss from both sides of chain clamp when being pressed from both sides the centre gripping by the chain, guaranteed the clamping effect to the membrane material, with film tensile stability.

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 required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of an orthopedic mechanism of a raised edge membrane material acting on one side of the raised edge membrane material according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the edge curling film material entering the chain clip after being straightened by the straightening mechanism of the edge curling film material according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of an orthopedic mechanism of a raised edge membrane according to an embodiment of the present invention.

10. A first nip roller; 11. an elastic member; 20. a second nip roller; 30. a first orthotic; 31. a first orthotic section; 40. edge warping membrane material; 41. edge warping parts; 50. a chain clip; 60. a second orthotic; 61. a second orthotic section; 70. a support; 80. a base; 91. a sliding assembly; 911. a slide rail; 912. a slider; 92. a lateral adjustment assembly.

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.

Referring to fig. 1 and 2, fig. 1 shows a schematic structural view of the shape righting mechanism of the edge raising film 40 acting on one side of the edge raising film 40 according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of the edge raising film 40 entering the chain clip 50 after being straightened by the shape righting mechanism of the edge raising film 40 according to an embodiment of the present invention. In an embodiment of the present invention, the orthopedic mechanism of the edge curling film 40 includes: a first nip roll 10, a second nip roll 20, and a first orthotic 30. The first nip roller 10 and the second nip roller 20 are arranged at an interval from top to bottom and are used for nipping the edge curling film material 40. The first orthotic 30 is disposed coaxially with the first nip roll 10, and the first orthotic 30 is provided with a first orthotic 31 for abutting against a raised edge portion 41 of the raised edge film 40, the first orthotic 31 having a diameter greater than the diameter of the first nip roll 10.

Before the edge curling film material 40 is clamped by the chain clamp 50, because the diameter of the first reshaping part 31 is larger than that of the first clamping roller 10, that is, the first clamping roller 10 and the second clamping roller 20 clamp the column edge curling film material 40, and the first reshaping part 31 and the edge curling part 41 of the edge curling film material 40 are abutted against each other, under the action of the first reshaping part 31, the edge curling part 41 of the edge curling film material 40 can bend towards the direction opposite to the curling direction, so that the edge curling part 41 of the edge curling film material 40 can be reshaped. After the edge warping film material 40 leaves the orthopedic mechanism, the edge of the film material can be in the absorption range of the clamping opening of the chain clamp 50 when being clamped by the chain clamp 50, and the clamping effect on the film material and the film stretching stability are guaranteed.

When the raised edge portion 41 of the raised edge film 40 is raised upward, the first nip roller 10 and the first correction member 30 are disposed above the raised edge film 40, and the first correction member 30 presses the raised edge portion 41 of the raised edge film 40 downward, so that the raised edge film 40 is corrected and flattened. Conversely, when the raised edge 41 of the raised edge membrane 40 is raised downward, the first clamping roller 10 and the first corrective member 30 are correspondingly disposed below the raised edge membrane 40, and the raised edge 41 of the raised edge membrane 40 is pressed upward by the first corrective member 30, so that the raised edge membrane 40 is deformed and flattened.

Referring again to fig. 1, in one embodiment, the orthopedic mechanism of the raised edge membrane 40 further includes a second orthotic 60 positioned to correspond to the first orthotic 30. The second corrector 60 is provided coaxially with the second nip roll 20, and the second corrector 60 is provided with a second corrector 61 for abutting against the raised edge portion 41 of the raised edge film 40, and the diameter of the second corrector 61 is smaller than the diameter of the second nip roll 20. In this way, the second correction member 60 and the first correction member 30 are engaged with each other, and the hem portion 41 of the hem film material 40 can be precisely bent in the reverse direction along a predetermined trajectory. In addition, the orthopedic effect of the rocker membrane 40 is associated with the curvature fit of the two orthotics. In addition, the first correction member 30 and the second correction member 60 having suitable curvatures can be selected according to the correction effect of the hem portion 41 of the hem film material 40.

Referring to fig. 1, in one embodiment, the diameter of the first orthotic section 31 increases in a direction away from the first nip roll 10. Likewise, the diameter of the second truing portion 61 decreases in a direction away from the second nip roller 20. Thus, the raised edge part 41 of the raised edge membrane material 40 is bent in the opposite directions by the first correction part 30 and the second correction part 60 to realize shape correction during operation, no disordered pinching and pressing are generated, and a good shape correction effect can be realized on the raised edge part 41 of the raised edge membrane material 40.

Referring to fig. 1 or fig. 3, fig. 3 is a schematic structural diagram illustrating an orthopedic mechanism of a raised edge membrane 40 according to an embodiment of the present invention. In one embodiment, the first orthotic 30 is separated from the second orthotic 60 by a gap that is greater than or equal to the thickness of the raised edge membrane 40. In this way, the first correction member 30 and the second correction member 60 mainly function to the edge lifting film 40 to bend the edge lifting portion 41 of the edge lifting film 40 in the opposite direction to perform correction. The friction force between the first correcting part 30 and the second correcting part 60 and the edge warping membrane 40 is small, so that the edge warping membrane 40 can be prevented from being damaged in the process of correcting.

Of course, as an alternative, when the friction coefficient between the edge tilting membrane 40 and the first and

second orthotics

30 and 60 is small, the size of the gap may be slightly smaller than the thickness of the edge tilting membrane 40, for example, 80% to 100% of the thickness of the edge tilting membrane 40.

Referring to fig. 1, in one embodiment, a first orthotic 30 is removably mounted to a first nip roll 10; the second orthotic 60 is removably mounted to the second nip roll 20. In this way, the first correction member 30 and the second correction member 60 are both easy to disassemble and assemble, and are driven to rotate by the corresponding clamping rollers during operation. The first correction part 30 and the second correction part 60 with proper size and specification can be selected according to factors such as different warping degrees, different thicknesses, different rebound characteristics and different production speeds of the edge curling film material 40, so that the edge curling part 41 of the edge curling film material 40 can be well corrected.

Referring to fig. 3, in one embodiment, the orthopedic mechanism of the edge curling film 40 further includes a bracket 70. The first nip roller 10 and the second nip roller 20 are disposed on the bracket 70 at an interval from top to bottom. The second nip roller 20 is position-adjustable in the height direction along the carriage 70. Therefore, according to the thickness of different films, the height position of the second nip roller 20 can be adjusted correspondingly, so that the gap between the first nip roller 10 and the second nip roller 20 can be adjusted correspondingly, and the orthopedic operation of different films is adapted.

Optionally, the position of the second nip roller 20 in the height direction along the bracket 70 may be adjustable in many ways, including but not limited to manual adjustment using an adjusting bolt, a lifting adjusting rod, a telescopic rod, etc., or may be in an electric lifting manner, that is, an electric lifting mechanism is provided, and the electric lifting mechanism drives the second nip roller 20 to lift and adjust the position.

Referring to fig. 3, in one embodiment, the first nip roller 10 is a pressing roller, and the first nip roller 10 is connected to the support 70 by an elastic member 11 or a pneumatic member. In this way, the first nip roller 10 realizes the nip force of the edge curling film 40 by the downward pressure generated by the elastic member 11 or the pneumatic member. Thus, during the orthopedic work, the first nip roller 10 and the second nip roller 20 nip the edge curling film 40 with a certain pressure, so that the edge curling film 40 can form a certain tension in the transverse direction (the direction indicated by the arrow b in fig. 2, i.e. perpendicular to the moving direction of the edge curling film 40, the moving direction is indicated by the arrow S in fig. 2, i.e. the width direction of the edge curling film 40).

Referring to FIG. 3, in one embodiment, the support 70 is a C-shaped support. Therefore, the C-shaped frame can be respectively provided with the first clamping roller 10 and the second clamping roller 20, and the first clamping roller 10 and the second clamping roller 20 are arranged at intervals up and down.

Referring to fig. 3, in one embodiment, the orthopedic mechanism of the raised edge membrane 40 further includes a base 80. The holder 70 is provided on the base 80 so as to be adjustable in position along the axial direction (indicated by a broken line O in fig. 2) of the first nip roller 10. In this way, since the position of the bracket 70 in the axial direction of the first nip roller 10 is adjustable, the position of the bracket 70 can be flexibly adjusted according to actual requirements, so that the clamping positions of the first nip roller 10 and the second nip roller 20 in the transverse direction of the edge curling film 40 are suitable, and the first corrective member 30 and the second corrective member 60 respectively abut against two sides of the edge curling portion 41 of the edge curling film 40 correspondingly, and a good corrective action can be achieved.

Referring to fig. 3, further, the orthopedic mechanism of the edge curling film 40 further includes a sliding assembly 91 and a lateral adjustment assembly 92. The bracket 70 is slidably disposed on the base 80 via a sliding assembly 91, and the lateral adjustment assembly 92 can drive the bracket 70 to move along the base 80. In this way, operating the lateral adjustment assembly 92, under the guiding action of the slide assembly 91, it is possible to achieve stable and accurate adjustment of the position of the bracket 70 in the lateral direction.

Referring to fig. 3, in one embodiment, the sliding assembly 91 includes a sliding rail 911 disposed on the base 80 and a sliding block 912 slidably disposed on the sliding rail 911. The bracket 70 is connected to the lateral adjustment member and the slider 912, respectively. Of course, in order to guide the bracket 70, the sliding assembly 91 is not limited to the above-mentioned matching form of the sliding rail 911 and the sliding block 912, and may also be other structural forms, and may be flexibly configured according to actual requirements, and is not limited herein.

Referring to fig. 3, in one embodiment, the lateral adjustment assembly 92 may be a manual pushing assembly, for example, including a lead screw with a hand wheel, and a moving block connected to the lead screw, the moving block having a threaded hole corresponding to the lead screw and sleeved outside the lead screw, and the moving block further connected to the bracket 70, and adjusting the position of the moving block is achieved by rotating the hand wheel. In addition, the transverse adjusting assembly 92 may also be in the form of an electric push rod, a cylinder drive, a hydraulic cylinder drive, or the like, and may be flexibly set according to actual requirements, which is not limited herein.

Referring to FIG. 3, in one embodiment, the first nip roller 10 and the second nip roller 20 have the same diameter.

Referring to fig. 2 and 3, in one embodiment, an axis of the first nip roller 10 (shown by a dotted line O in fig. 2) forms an angle with a transverse direction of the edge curling film 40 (shown by an arrow b in fig. 2). Thus, the running direction of the portion of the first nip roller 10 and the second nip roller 20 that nip the edge curling film material 40 forms an included angle with the running direction of the edge curling film material 40 (as shown by an arrow S in fig. 2), and the included angle is an outward tilting movement included angle. When at least one shape correcting mechanism is arranged on two opposite sides of the edge warping membrane material 40, the two symmetrically distributed shape correcting mechanisms act on flat parts on two sides of the edge warping membrane material 40 respectively, and a transverse tensioning acting force is formed on the difference of the membrane material friction acting directions because the operating direction of the part for clamping the edge warping membrane material 40 and the operating direction of the edge warping membrane material 40 form an outward inclined movement included angle.

The inventor researches and discovers that when the included angle of the outer inclined movement is larger, the tensioning effect of the clamping rollers of the two orthopedic mechanisms respectively positioned at the two opposite sides of the film on the film is more obvious. When the included angle of the outer inclined movement is large, the film material can be damaged due to large acting force along the transverse direction generated on the film material.

Referring to fig. 2 and 3, in one embodiment, an angle between an axis of the first nip roller 10 (shown by a dotted line O in fig. 2) and a transverse direction of the edge lifting film 40 (shown by an arrow b in fig. 2) is defined as a, a <10 °.

Referring to fig. 2 and 3, in an embodiment, an included angle between the axis of the first nip roller 10 and the transverse direction of the edge curling film 40 can be flexibly adjusted according to actual requirements.

Referring to fig. 2 and 3, in an embodiment, a film stretching device includes the shape righting mechanism of the edge curling film 40 of any one of the above embodiments, and the shape righting mechanism is disposed at the entrance of the film stretching rail.

Before the edge curling film material 40 is clamped by the chain clamp 50, the diameter of the first reshaping part 31 is larger than that of the first clamping roller 10, namely, the first clamping roller 10 and the second clamping roller 20 clamp the column edge curling film material 40, and the first reshaping part 31 is abutted against the edge curling part 41 of the edge curling film material 40, so that the edge curling part 41 of the edge curling film material 40 can be bent towards the direction opposite to the curling direction under the action of the first reshaping part 31, and the edge curling part 41 of the edge curling film material 40 can be reshaped. After the edge warping film material 40 leaves the orthopedic mechanism, the edge of the film material can be in the absorption range of the clamping opening of the chain clamp 50 when being clamped by the chain clamp 50, and the clamping effect on the film material and the film stretching stability are guaranteed.

In one embodiment, one, two, three or another number of the orthotic devices are disposed on one side of the entrance to the film stretching track.

In one embodiment, one, two, three or another number of the orthotic devices are disposed on each of opposite sides of the entrance to the film stretching track. The number of the straightening mechanisms arranged on the opposite sides of the entrance of the film stretching rail may be the same or different, and is not limited herein, and is specifically set according to the warping condition of the raised edge portion 41 of the raised edge film material 40.

In one embodiment, the film stretching rails are arranged symmetrically or asymmetrically with respect to each other on opposite sides of the entrance opening of the film stretching rail.

It should be noted that the "first orthotic 30" may be "a portion of the first nip roll 10," i.e., the "first orthotic 30" is integrally formed with "another portion of the first nip roll 10"; alternatively, a separate member may be provided that is separable from the remainder of the first nip roll 10, i.e., the first orthotic 30 may be separately manufactured and integrated with the remainder of the first nip roll 10.

It should be noted that the "second orthotic 60" may be a "portion of the second nip roll 20", i.e., the "second orthotic 60" is integrally formed with "other portions of the second nip roll 20"; alternatively, a separate member may be provided that is separable from the remainder of the second nip roll 20, i.e., the second orthotic 60 may be separately manufactured and integrated with the remainder of the second nip roll 20.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure 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

1. An orthopedic mechanism of a raised edge membrane, characterized in that the orthopedic mechanism of a raised edge membrane comprises:

2. The reshaping mechanism for a nose membrane of claim 1, further comprising a second orthotic disposed in correspondence with the first orthotic; the second orthopedic part is arranged coaxially with the second clamping roller, and is provided with a second orthopedic part which is used for being abutted against a raised edge part of the raised edge membrane material, and the diameter of the second orthopedic part is smaller than that of the second clamping roller.

3. The warp framing film orthotic mechanism of claim 2, wherein the diameter of said first orthotic section tends to increase in a direction away from said first nip roller; the diameter of the second orthopedic portion decreases in a direction away from the second nip roll.

4. The reshaping mechanism for a nose membrane of claim 2, wherein the first reshaping component and the second reshaping component are provided with a gap, and the gap is greater than or equal to the thickness of the nose membrane.

5. The reshaping mechanism for a raised edge film according to claim 2, wherein the first reshaping member is detachably mounted on the first nip roller; the second orthopedic member is detachably mounted on the second nip roller.

6. The warp beam orthopedic mechanism according to claim 1, characterized in that the warp beam orthopedic mechanism further comprises a brace; the first clamping roller and the second clamping roller are arranged on the bracket at intervals up and down; the second nip roller is adjustable in position in a height direction along the support.

7. The reshaping mechanism for a warped edge membrane according to claim 6, wherein the first nip roller is a compression roller, and the first nip roller is connected to the bracket through an elastic member or an air-operated member.

8. The warp-edge membrane orthopedic mechanism according to claim 6, characterized in that the brace is a C-shaped brace; and/or the reshaping mechanism of the edge curling membrane material further comprises a base, and the support is arranged on the base in a position-adjustable manner along the axial direction of the first clamping roller.

9. The reshaping mechanism for a raised edge membrane material according to any one of claims 1 to 8, wherein an axis of the first nip roller is arranged at an angle with a transverse direction of the raised edge membrane material; and/or the first nip roller and the second nip roller have the same diameter.

10. A film stretching apparatus, characterized in that it comprises a straightening mechanism for a raised edge film according to any of claims 1 to 9, which straightening mechanism is arranged at the entrance of a film stretching rail.