Unwinding and stripping mechanism for film to be compounded

Abstract

The utility model discloses a to-be-composited film unwinding and stripping mechanism. The to-be-composited film unwinding and stripping mechanism comprises a UVW adjusting platform, a moving frame, a to-be-composited film unwinding roller, a to-be-composited film stripping assembly and a waste film collecting roller. The moving frame is arranged on the UVW adjusting platform, and the to-be-compounded film unwinding roller is arranged on the moving frame and used for unwinding a to-be-compounded film; the to-be-compounded film stripping assembly is arranged on the moving frame and is used for separating a to-be-compounded film from a waste film; the waste film collecting roller is arranged on the moving frame and used for collecting the separated waste films. The moving frame is arranged on the UVW adjusting platform, the to-be-composited film unwinding roller, the to-be-composited film stripping assembly and the waste film collecting roller are all arranged on the moving frame, and when a to-be-composited film and a bottom film are in a parallel state and deviate in position, translation alignment of the to-be-composited film and the bottom film can be achieved through the UVW adjusting platform; the undesirable phenomena of distortion, bubbles and the like caused by distortion of the to-be-compounded film are avoided, and subsequent precise alignment and precise compounding are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic laminating equipment, concretely is a kind of to be compounded film unwinding stripping mechanism. BACKGROUND

[0002] In battery industry, precise laminating equipment is often needed to compound different film materials together. In the process of automatic lamination, the film material will deviate obviously during rotation. The deviation mainly includes three aspects: angle deviation, position deviation or both angle and position deviation. This will result in uneven final compounded material and affect product quality. The existing technology has a scheme of automatic identification based on vision and then using a deviation corrector to correct deviation. For example, the Chinese utility model patent with patent number "202310318371.3" discloses a closed-loop method based on lithium battery lamination process, which discloses a scheme of using a deviation corrector to correct deviation. However, when using this deviation corrector to correct position deviation, it can correct deviation to a certain extent, but this method will cause angle deviation (the position of lamination is equivalent to the position of film fixation, and the deviation corrector rotates with the film relative to the fixed position of the film).

[0003] In addition, for laminating rectangular sheet-shaped and spaced to-be-compounded films into a rolled bottom film, it is difficult to accurately align each to-be-compounded film using only a deviation corrector. The large spacing between to-be-compounded films caused by insufficient lamination accuracy will also result in waste of bottom film or waste film material. UTILITY MODEL CONTENT

[0004] The existing technology mentioned above uses a deviation corrector to correct deviation, but when using this deviation corrector to correct position deviation, it can correct deviation to a certain extent, but this method will cause angle deviation. The utility model solves the technical problem by using the following technical solution: a to-be-compounded film unwinding and stripping mechanism, which includes a UVW adjustment platform, a moving frame, a to-be-compounded film unwinding roller, a to-be-compounded film stripping assembly, and a waste film collecting roller. The moving frame is arranged on the UVW adjustment platform, the to-be-compounded film unwinding roller is arranged on the moving frame to unwind the to-be-compounded film, the to-be-compounded film stripping assembly is arranged on the moving frame to separate the to-be-compounded film and the waste film, and the waste film collecting roller is arranged on the moving frame to collect the separated waste film.

[0005] As described above, the unwinding and peeling mechanism for a composite film includes a peeling assembly comprising a lifting frame, a guide roller, a peeling block, a third power roller, and a pressure roller. The lifting frame is slidably connected to a movable frame in a vertical direction. The movable frame is equipped with a lifting driver for driving the lifting frame to move up and down relative to the movable frame. The peeling block, guide roller, third power roller, and pressure roller are connected to the lifting frame. After being unwound by the unwinding roller, the composite film passes through the guide roller and the peeling block in sequence and is then peeled off. The waste film passes through the third power roller and the pressure roller and is then wound up by the waste film collection roller.

[0006] As described above, in a film unwinding and peeling mechanism, the peeling block is provided with a peeling plane and a transition surface, the peeling plane and the transition surface intersect, and the transition surface is located below the peeling plane.

[0007] In the above-described unwinding and peeling mechanism for composite films, the angle of inclination of the peeling plane relative to the horizontal plane is α, where α satisfies: 30°≤α≤40°.

[0008] As described above, in the unwinding and peeling mechanism for a composite film, the peeling block is provided with two positioning blocks for positioning the composite film.

[0009] As described above, in a film unwinding and peeling mechanism, the movable frame located between the guide roller and the unwinding roller of the film to be laminated is provided with a correction device for correcting the deviation of the film to be laminated.

[0010] As described above, in a film unwinding and peeling mechanism, the UVW adjustment platform includes a base and a movable seat that can move relative to the base. The movable frame is disposed on the movable seat, and the UVW adjustment platform is used to adjust the position of the movable frame relative to the base.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model sets the movable frame on the UVW adjustment platform. The unwinding roller of the film to be laminated, the peeling component of the film to be laminated, and the waste film collection roller are all set on the movable frame. When the film to be laminated and the base film are in a parallel state and there is a positional offset, the UVW adjustment platform can realize the translational alignment of the film to be laminated and the base film, avoiding the distortion of the film to be laminated and the resulting defects such as distortion and bubbles, thus achieving subsequent precise alignment and precise lamination.

[0013] 2. The film to be laminated is not continuous, but rather consists of individual sheets. After the film to be laminated passes the peeling block, a portion of the film will protrude. At this point, the visual recognition module collects the position data of the film to be laminated and the base film, and controls the UVW adjustment platform to adjust to the aligned position. Then, the lifting driver drives the lifting frame to descend, and the front part of the film to be laminated will contact the base film. Under the action of the laminating mechanism, the film is laminated to achieve precise bonding.

[0014] 3. The peeling block is equipped with a peeling plane and a transition curved surface, which can easily separate the membrane to be laminated from the waste membrane without causing deformation of the membrane to be laminated.

[0015] 4. A correction device is provided on the movable frame between the guide roller and the unwinding roller of the film to be laminated for correcting the deviation of the film to be laminated. The correction device is used to adjust the deviation of the angle of the film to be laminated relative to the base film and to supplement the adjustment of the angle deviation.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of the unwinding and peeling mechanism for the composite film in this embodiment of the present invention;

[0018] Fig. 2 This is a schematic diagram of the structure of the unwinding and peeling mechanism (hidden parts) of the composite film in this embodiment of the present invention;

[0019] Fig. 3 This is a schematic diagram of the structure of the composite film peeling component in an embodiment of this utility model.

[0020] Fig. 4 This is a schematic diagram of the composite film unwinding and peeling mechanism of this utility model applied to an automatic alignment gap bonding equipment;

[0021] Fig. 5 This is a front view schematic diagram of the composite film unwinding and peeling mechanism of this utility model applied in an automatic alignment gap bonding equipment;

[0022] Fig. 6 This is a schematic diagram of the structure of the automatic alignment gap bonding equipment concealing the unwinding and peeling mechanism of the film to be laminated, according to an embodiment of this utility model. Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figs. 1 to 3As shown, the unwinding and stripping mechanism of the film to be compounded in the embodiment comprises a UVW adjusting platform 4, a moving frame 31, an unwinding roller 32 of the film to be compounded, a stripping assembly 33 of the film to be compounded and a waste film collecting roller 34; the moving frame 31 is arranged on the UVW adjusting platform 4, the unwinding roller 32 of the film to be compounded is arranged on the moving frame 31 and is used for unwinding the film to be compounded 1002; the stripping assembly 33 of the film to be compounded is arranged on the moving frame 31 and is used for separating the film to be compounded 1002 and the waste film 1003; and the waste film collecting roller 34 is arranged on the moving frame 31 and is used for collecting the separated waste film 1003. The moving frame is arranged on the UVW adjusting platform, the unwinding roller of the film to be compounded, the stripping assembly of the film to be compounded and the waste film collecting roller are all arranged on the moving frame, the film to be compounded and the bottom film are in a parallel state and are offset in position, the UVW adjusting platform can realize the translation alignment of the film to be compounded and the bottom film, the distortion of the film to be compounded is avoided, the adverse phenomena such as distortion and bubbles are avoided, and the subsequent accurate alignment and accurate compounding are realized.

[0025] In the embodiment, the stripping assembly 33 of the film to be compounded comprises a lifting frame 331, a guide roller 332, a stripping block 333, a third power roller 334 and a pressing roller 335, the lifting frame 331 is slidably connected to the moving frame 31 in the vertical direction, the moving frame 31 is provided with a lifting driver 336 for driving the lifting frame 331 to lift relative to the moving frame 31, the stripping block 333, the guide roller 332, the third power roller 334 and the pressing roller 335 are connected to the lifting frame 331, the film to be compounded 1002 is unwound through the unwinding roller 32 of the film to be compounded, sequentially passes through the guide roller 332 and the stripping block 333, and then the film to be compounded 1002 is stripped, the waste film 1003 passes through the third power roller 334 and the pressing roller 335 and is then wound by the waste film collecting roller 34. Because the film to be compounded is not continuous but is in pieces, when the film to be compounded passes through the stripping block 333, a part of the film to be compounded will protrude, at this time, the position data of the film to be compounded 1002 and the bottom film 1001 is collected by the visual recognition module 5, the UVW adjusting platform is controlled to be adjusted to the aligned position, then the lifting driver 336 drives the lifting frame 331 to descend, the front part of the film to be compounded 1002 will contact the bottom film 1001 and is compounded under the action of the compounding mechanism 6, and accurate compounding is realized.

[0026] The stripping block 333 is provided with a stripping plane 3331 and a transition curved surface 3332, the stripping plane 3331 and the transition curved surface 3332 intersect, and the transition curved surface 3332 is located below the stripping plane 3331. The stripping block 333 adopts the above structure and can easily separate the film to be compounded and the waste film without causing the deformation of the film to be compounded.

[0027] In this embodiment, the inclination angle of the peeling plane 3331 relative to the horizontal plane is α, where α satisfies: 30°≤α≤40°. With this angle, when the lifting frame is descending, the front part of the to-be-combined film can be attached to the bottom film, avoiding translocation.

[0028] In this embodiment, two positioning blocks 3333 are arranged on the peeling block 333 for positioning the to-be-combined film 1002. The to-be-combined film is centered by the positioning.

[0029] In this embodiment, a deviation rectifying instrument 35 for rectifying the deviation of the to-be-combined film 1002 is arranged on the lifting frame 31 between the guide roller 332 and the to-be-combined film unwinding roller 32. The deviation rectifying instrument is used for adjusting the deviation of the to-be-combined film relative to the bottom film, and is used for supplementary adjustment of the angle deviation.

[0030] The UVW adjustment platform 4 comprises a base 41 and a moving base 42 which can move relative to the base 41, and the lifting frame 31 is arranged on the moving base 42. The UVW adjustment platform 4 is used for adjusting the position of the lifting frame 31 relative to the base 41. The UVW adjustment platform adopts a mature solution in the prior art, and will not be described herein.

[0031] As shown in FIG. 1, the UVW adjustment platform 4 comprises a base 41 and a moving base 42 which can move relative to the base 41, and the lifting frame 31 is arranged on the moving base 42. The UVW adjustment platform 4 is used for adjusting the position of the lifting frame 31 relative to the base 41. The UVW adjustment platform adopts a mature solution in the prior art, and will not be described herein. Figs. 4 to 6As shown, a schematic diagram of the composite film unwinding and stripping mechanism of the present embodiment applied to an automatic alignment gap lamination device, wherein: the automatic alignment gap lamination device comprises: a rack 1, a bottom film unwinding roller 2, a to-be-composited film unwinding and stripping mechanism 3, a UVW adjustment platform 4, a visual recognition module 5, and a composite mechanism 6, the bottom film unwinding roller 2 is arranged on the rack 1 and used for unwinding a bottom film 1001; the to-be-composited film unwinding and stripping mechanism 3 is used for unwinding a to-be-composited film 1002 and separating the to-be-composited film 1002 from waste film 1003; the UVW adjustment platform 4 comprises: a base 41 and a moving seat 42 capable of moving relative to the base 41, the base 41 is arranged on the rack 1, the to-be-composited film unwinding and stripping mechanism 3 is arranged on the moving seat 42, and the UVW adjustment platform 4 is used for adjusting the position of the to-be-composited film unwinding and stripping mechanism 3 relative to the rack 1; the visual recognition module 5 is arranged on the rack 1 and used for collecting position data of the to-be-composited film 1002 and the bottom film 1001, and moving the moving seat 42 of the UVW adjustment platform 4 according to the collected position data to align the to-be-composited film 1002 and the bottom film 1001; and the composite mechanism 6 is arranged on the rack 1 and used for compositing the aligned to-be-composited film 1002 and the bottom film 1001. The automatic alignment gap lamination device collects position data of the to-be-composited film and the bottom film through the visual recognition module, controls the moving seat of the UVW adjustment platform to move according to the collected position data, aligns the to-be-composited film and the bottom film, realizes translational alignment of the to-be-composited film and the bottom film when the to-be-composited film and the bottom film are in a parallel state and positional deviation occurs, avoids the occurrence of adverse phenomena such as distortion and bubbles caused by distortion of the to-be-composited film, and realizes accurate alignment and accurate composition.

[0032] In the present embodiment, a first power roller group 7, a bottom film adsorption positioning seat 8, and a second power roller group 9 are sequentially arranged on the rack 1 and along the unwinding direction of the bottom film 1001, and the composite mechanism 6 is arranged between the bottom film adsorption positioning seat 8 and the second power roller group 9.

[0033] In the present embodiment, the UVW adjustment platform 4 is located directly below the bottom film adsorption positioning seat 8, and the to-be-composited film unwinding and stripping mechanism 3 is located directly above the bottom film adsorption positioning seat 8.

[0034] In the present embodiment, the composite mechanism 6 comprises a compression roller frame 61, the compression roller frame 61 is rotationally connected to the rack 1, a composite roller 62 is arranged on the compression roller frame 61, and a compression cylinder 63 for driving the compression roller frame 61 to rotate to composite the to-be-composited film 1002 and the bottom film 1001 is arranged on the rack 1. With the above structure, the composite roller 62 can always press the to-be-composited film and the bottom film, avoiding the displacement of the to-be-composited film.

[0035] The above only further illustrates the technical content of the utility model with examples, so that the reader can more easily understand, but does not represent that the embodiment of the utility model is limited to this, and any technical extension or re-creation made according to the utility model is protected by the utility model. The protection scope of the utility model is subject to the patent claims.

Claims

1. A mechanism for unwinding and peeling a composite film, characterized in that, The unwinding and peeling mechanism (3) for the film to be laminated includes: a UVW adjustment platform (4), a moving frame (31), an unwinding roller (32) for the film to be laminated, a peeling assembly (33) for the film to be laminated, and a waste film collecting roller (34); the moving frame (31) is set on the UVW adjustment platform (4), the unwinding roller (32) for the film to be laminated is set on the moving frame (31), and is used to unwind the film to be laminated (1002); the peeling assembly (33) for the film to be laminated is set on the moving frame (31), and is used to separate the film to be laminated (1002) and the waste film (1003); The waste film collection roller (34) is mounted on the movable frame (31) for collecting the separated waste film (1003).

2. The unwinding and peeling mechanism for a composite film according to claim 1, characterized in that, The film peeling assembly (33) includes: a lifting frame (331), a guide roller (332), a peeling block (333), a third power roller (334), and a pressure roller (335). The lifting frame (331) is slidably connected to the moving frame (31) in the vertical direction. The moving frame (31) is provided with a lifting driver (336) for driving the lifting frame (331) to rise and fall relative to the moving frame (31). The peeling block (333), the guide roller (332), the third power roller (334), and the pressure roller (335) are connected to the lifting frame (331). The film to be laminated (1002) is unwound by the film unwinding roller (32) and then passes through the guide roller (332) and the peeling block (333) in sequence before being peeled off. The waste film (1003) passes through the third power roller (334) and the pressure roller (335) before being wound up by the waste film collecting roller (34).

3. The unwinding and peeling mechanism for a composite film according to claim 2, characterized in that, The peeling block (333) is provided with a peeling plane (3331) and a transition surface (3332), the peeling plane (3331) and the transition surface (3332) intersect, and the transition surface (3332) is located below the peeling plane (3331).

4. The unwinding and peeling mechanism for a composite film according to claim 3, characterized in that, The angle of inclination of the peeling plane (3331) relative to the horizontal plane is α, where α satisfies: 30°≤α≤40°.

5. The unwinding and peeling mechanism for a composite film according to claim 2, characterized in that, The peeling block (333) is provided with two positioning blocks (3333) for positioning the composite film (1002).

6. The unwinding and peeling mechanism for a composite film according to claim 2, characterized in that, The movable frame (31) is provided with a correction device (35) for correcting the deviation of the film to be laminated (1002) located between the guide roller (332) and the unwinding roller (32) of the film to be laminated.

7. A film unwinding and peeling mechanism according to any one of claims 1-6, characterized in that, The UVW adjustment platform (4) includes a base (41) and a movable seat (42) that can move relative to the base (41). The movable frame (31) is disposed on the movable seat (42). The UVW adjustment platform (4) is used to adjust the position of the movable frame (31) relative to the base (41).

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