Film laminating machine and film feeding device

Abstract

The application provides a film pasting machine and a film feeding device. The film feeding device comprises a film feeding mechanism for conveying a film and a pre-tearing mechanism for pre-tearing a protective film on the film. The pre-tearing mechanism is arranged at the side of the film feeding mechanism. The pre-tearing mechanism comprises a clamping assembly for clamping a tear strip on the protective film, a support plate for supporting the clamping assembly, and a pre-tearing lifter for driving the clamping assembly to move up and down. The clamping assembly is installed on the support plate, the support plate is installed on the pre-tearing lifter, and the pre-tearing lifter is arranged at the side of the film feeding mechanism. By arranging the film feeding mechanism and the pre-tearing mechanism, when the film feeding mechanism conveys the film to pass through the pre-tearing mechanism, the clamping assembly of the pre-tearing mechanism clamps the tear strip on the film to pull the tear strip, thereby separating the protective film from the functional film part for pre-tearing. When the film is placed on the glue mold of the film pasting device, the protective film can be conveniently torn off, and the success rate of film tearing is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of film pasting, and more particularly relates to a film feeding device and a film pasting machine using the same. BACKGROUND

[0002] In the processing and manufacturing of electronic devices, functional films such as protective films and explosion-proof films need to be pasted on display screens. Similarly, in the manufacturing of display screens, display films often need to be pasted on glass panels. In addition, in the manufacturing of backshells, especially glass backshells or plastic backshells, in order to increase the color of the backshell, corresponding functional films will also be pasted in the backshell. These manufacturing processes all need to use a film pasting machine to paste the functional films on the corresponding shells. In order to protect the functional film (i.e. the film layer that needs to be pasted on the shell), a protective film is generally provided on the pasting surface of the functional film (i.e. the surface that needs to be pasted on the shell) to form a film piece. One corner of the protective film extends a tear strip to facilitate tearing the protective film from the functional film. Currently, the film piece is generally sucked and transferred by a suction cup to the glue mold of the film pasting device, the film piece is sucked by the suction plate on the side of the glue mold, and then the tear strip on the protective film is clamped by the film tearing mechanism to tear off the protective film. However, when tearing the protective film, the film piece is often torn off from the glue mold as a whole, resulting in film tearing failure and the need to re-feed the film to the film pasting mechanism. SUMMARY

[0003] The purpose of the embodiments of the present application is to provide a film feeding device and a film pasting machine to solve the problem of film tearing failure when tearing the protective film of the film piece on the glue mold of the film pasting device in the related art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the embodiments of the present application is to provide a film feeding device, which comprises a film feeding mechanism for conveying a film piece and a pre-tearing mechanism for pre-tearing the protective film on the film piece. The pre-tearing mechanism is arranged on the side of the film feeding mechanism. The pre-tearing mechanism comprises a clamping assembly for clamping the tear strip on the protective film, a support plate for supporting the clamping assembly, and a pre-tearing lifter for driving the clamping assembly to move up and down. The clamping assembly is installed on the support plate, the support plate is installed on the pre-tearing lifter, and the pre-tearing lifter is arranged on the side of the film feeding mechanism.

[0005] In one embodiment, the clamping assembly comprises two clamping jaws and a clamping cylinder for driving the two clamping jaws to open and close. The clamping cylinder is supported on the support plate.

[0006] In one embodiment, the pre-tearing mechanism further comprises a pre-tearing rotating assembly for rotating the clamping assembly. The clamping assembly is installed on the pre-tearing rotating assembly, and the pre-tearing rotating assembly is installed on the support plate.

[0007] In one embodiment, the pre-tearing mechanism further comprises a pre-tearing cross mover for driving the pre-tearing lifter to move towards and away from the film feeding mechanism.

[0008] In one embodiment, the film feeding mechanism comprises a film suction device for sucking the film and a longitudinal mover for driving the film suction device to move longitudinally, the film suction device being mounted on the longitudinal mover.

[0009] In one embodiment, the film suction device comprises a suction plate, a first positioning plate for positioning one side edge of the film, a second positioning plate for positioning the other side edge of the film, and a support for supporting the suction plate, the first positioning plate and the second positioning plate being mounted on the support, the first positioning plate and the second positioning plate being respectively arranged on two adjacent sides of the suction plate, the first positioning plate being arranged on the side of the suction plate close to the pre-tearing mechanism, the second positioning plate being arranged on the side of the suction plate close to the pre-tearing mechanism, and a space for avoiding the tear strip of the film being formed between the end of the second positioning plate close to the pre-tearing mechanism and the adjacent end of the first positioning plate, the support being supported on the longitudinal mover.

[0010] In one embodiment, a receiving cavity is formed in the support, the first positioning plate being slidingly mounted on the support, the second positioning plate being slidingly mounted on the support, a first driver for driving the first positioning plate to move along the normal direction of the first positioning plate, and a second driver for driving the second positioning plate to move along the normal direction of the second positioning plate, the first driver and the second driver being mounted in the receiving cavity.

[0011] In one embodiment, the film feeding mechanism further comprises a rotator for driving the film suction device to rotate, the rotator being mounted on the longitudinal mover, and the film suction device being mounted on the rotator.

[0012] In one embodiment, the film feeding device further comprises a film supplying mechanism for supplying the film and a film moving mechanism for moving the film on the film supplying mechanism to the film feeding mechanism, the film supplying mechanism being arranged on the side of the film feeding mechanism, and the film moving mechanism being arranged across the film supplying mechanism and the film feeding mechanism.

[0013] Another object of the embodiments of the present application is to provide a film laminating machine comprising the film feeding device as described in any of the above embodiments.

[0014] The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

[0015] The film feeding device provided by the embodiment of the present application, by setting the film feeding mechanism and the pre-tearing mechanism, when the film feeding mechanism conveys the film through the pre-tearing mechanism, the clamping assembly of the pre-tearing mechanism clamps the tear strip on the film to pull the tear strip, so as to separate the protective film from the functional film partially to perform pre-tearing; thus, when the film is placed on the glue mold of the film pasting device, the protective film can be conveniently torn off, and the success rate of film tearing is improved.

[0016] The film pasting machine provided by the embodiment of the present application uses the above film feeding device, and the protective film on the film can be pre-torn in the automatic feeding process, so that the success rate of film tearing is improved, and the film pasting efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0018] Figure 1 Structure diagram of the film feeding device provided by the embodiment one of the present application Figure 1 .

[0019] Figure 2 Structure diagram of the film feeding device provided by the embodiment one of the present application Figure 2 .

[0020] Figure 3 Structure diagram of the pre-tearing mechanism provided by the embodiment of the present application.

[0021] Figure 4 Structure diagram of the film feeding mechanism provided by the embodiment of the present application.

[0022] Figure 5 Structure diagram of the film feeding mechanism provided by the embodiment of the present application Figure 4 . Figure 1

[0023] Figure 6 Structure diagram of the film feeding mechanism provided by the embodiment of the present application Figure 4 . Figure 2

[0024] Figure 7 Structure diagram of the film feeding mechanism provided by the embodiment of the present application Figure 4 .

[0025] Figure 8 Structure diagram of the film feeding device provided by the embodiment one of the present application

[0026] Figure 9 ​​A structural schematic diagram of a film feeding mechanism provided for an embodiment of the present application.

[0027] Figure 10 A structural schematic diagram of a film moving mechanism provided for an embodiment of the present application.

[0028] In the drawings, the main marks are as follows:

[0029] 100 - film sheet feeding device;

[0030] 10 - film feeding mechanism; 11 - support frame; 12 - film suction device; 121 - suction plate; 1211 - first notch; 1212 - second notch; 122 - support base; 1221 - accommodating cavity; 1222 - support rib plate; 123 - first positioning plate; 1231 - first sliding block; 1232 - first sliding rail; 124 - first driver; 125 - second positioning plate; 1251 - second sliding block; 1252 - second sliding rail; 126 - second driver; 13 - rotator; 14 - longitudinal moving device; 15 - longitudinal limiting assembly; 151 - sensing sheet; 152 - sensor;

[0031] 20 - pre-tearing mechanism; 21 - clamping assembly; 211 - clamping jaw; 212 - clamping cylinder; 22 - pre-tearing rotating assembly; 221 - rotator; 222 - support shaft; 23 - support plate; 24 - detection assembly; 241 - detector; 242 - detection sheet; 25 - pre-tearing lifter; 26 - pre-tearing lifting support; 27 - first limiting assembly; 271 - first inductor; 272 - first sensing sheet; 28 - pre-tearing horizontal moving device; 29 - second limiting assembly; 291 - second inductor; 292 - second sensing sheet;

[0032] 30 - film feeding mechanism; 31 - supporting plate; 32 - fixing seat; 33 - film feeding lifter; 34 - material frame; 341 - vertical plate; 342 - positioning rod; 343 - sliding plate; 344 - pressing rod; 345 - locking block; 35 - air nozzle;

[0033] 40 - film moving mechanism; 41 - film suction assembly; 411 - suction disc; 412 - lifting driver; 42 - baffle; 421 - opening; 43 - vibration assembly; 431 - vibration rod; 432 - vibrator; 44 - horizontal moving driver; 45 - film moving frame;

[0034] 91 - film sheet. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] It should be noted that, when an element is referred to as being "fixed" or "set up" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] In addition, the terms "first", "second", "third", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or a quantity of indicated technical features. Thus, a feature defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically defined.

[0038] In the description of the present application, it should be noted that, unless otherwise explicitly and specifically defined, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the description of the present application, the reference "one embodiment", "some embodiments" or "embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. In addition, in one or more embodiments, the specific features, structures or characteristics can be combined in any suitable manner.

[0040] For the convenience of description, three directions perpendicular to each other in space are defined as a vertical direction, a horizontal direction and a longitudinal direction. The three direction coordinate axes are X-axis, Y-axis and Z-axis, at the same time, the direction along the X-axis is the longitudinal direction, the direction along the Y-axis is the horizontal direction, and the direction along the Z-axis is the vertical direction; wherein the X-axis and the Y-axis are two coordinate axes perpendicular to each other in the same horizontal plane, and the Z-axis is the coordinate axis of the vertical direction; the X-axis, the Y-axis and the Z-axis are perpendicular to each other in space, and the three planes are the XY plane, the YZ plane and the XZ plane, wherein the XY plane is a horizontal plane, the XZ plane and the YZ plane are both vertical planes, and the XZ plane is perpendicular to the YZ plane. The three axes in space are the X-axis, the Y-axis and the Z-axis, moving along the three axes in space means moving along the three axes perpendicular to each other in space, and specifically moving along the X-axis, the Y-axis and the Z-axis in space; while the plane movement is moving in the XY plane.

[0041] Embodiment I:

[0042] Please refer to Figure 1 and Figure 2 , the film feeding device 100 provided by the present application will be described. The film feeding device 100 comprises a film feeding mechanism 10 and a pre-tearing mechanism 20, the film feeding mechanism 10 is used for conveying a film, and the pre-tearing mechanism 20 is used for pre-tearing the protective film on the film. The pre-tearing mechanism 20 is arranged at the side of the film feeding mechanism 10, so that when the film feeding mechanism 10 conveys the film past the pre-tearing mechanism 20, the pre-tearing mechanism 20 can pre-tear the film on the film feeding mechanism 10, so as to separate the protective film from the functional film part on the film, facilitating the subsequent tearing of the protective film.

[0043] Please refer to Figure 3 , the pre-tearing mechanism 20 comprises a clamping assembly 21, a support plate 23 and a pre-tearing lifter 25; the clamping assembly 21 is installed on the support plate 23, and the support plate 23 supports the clamping assembly 21. The support plate 23 is installed on the pre-tearing lifter 25, and the pre-tearing lifter 25 drives the support plate 23 to rise and fall, so as to drive the clamping assembly 21 to rise and fall. The pre-tearing lifter 25 is arranged at the side of the film feeding mechanism 10, so that when the film feeding mechanism 10 conveys the film, the film can be conveyed to the clamping assembly 21. The clamping assembly 21 is used for clamping the tear strip on the protective film, so as to pre-tear the protective film on the film.

[0044] When the film feeding device 100 works, the film feeding mechanism 10 conveys the film, when the film reaches the pre-tearing mechanism 20, the clamping assembly 21 clamps the tear strip on the film, the pre-tearing lifter 25 drives the clamping assembly 21 to rise and fall, so as to pull the tear strip, while the film is fixed by the film feeding mechanism 10, so that the protective film can be separated from the functional film part, reducing the tightness of the combination of the protective film and the functional film, so that the protective film can be easily torn from the functional film in the subsequent film pasting process, improving the success rate of film tearing.

[0045] The film feeding device 100 of the embodiment of the application is provided with the film feeding mechanism 10 and the pre-tearing mechanism 20. When the film feeding mechanism 10 conveys the film through the pre-tearing mechanism 20, the clamping assembly 21 of the pre-tearing mechanism 20 clamps the tear strip on the film to pull the tear strip, thereby separating the protective film from the functional film partially to perform pre-tearing. Therefore, when the film is placed on the glue mold of the film pasting device, the protective film can be conveniently torn off, and the success rate of film tearing is improved.

[0046] In one embodiment, referring to Figure 3 , the clamping assembly 21 comprises two clamping jaws 211 and a clamping cylinder 212 for driving the two clamping jaws 211 to open and close, and the clamping cylinder 212 is supported on the support plate 23. The clamping cylinder 212 and the clamping jaws 211 can conveniently clamp the tear strip, are convenient to control, and have simple structure and small space occupation. In some embodiments, the clamping assembly 21 can also have other structures, for example, a mechanical claw can be used; a combination structure of a motor and a clamp can also be used, the motor drives the clamp to open and close, and the like.

[0047] In one embodiment, referring to Figure 3 , the pre-tearing mechanism 20 further comprises a pre-tearing rotating assembly 22, the clamping assembly 21 is installed on the pre-tearing rotating assembly 22, and the pre-tearing rotating assembly 22 is installed on the support plate 23; the pre-tearing rotating assembly 22 is used to drive the clamping assembly 21 to rotate. The pre-tearing rotating assembly 22 is provided to drive the clamping assembly 21 to rotate when the clamping assembly 21 clamps the tear strip on the film and the pre-tearing lifter 25 pushes the clamping assembly 21 to ascend, so that the tear strip can be pulled to be inclined relative to the functional film, thereby better separating the area where the protective film is connected with the tear strip from the functional film and avoiding damaging the functional film; meanwhile, the tear strip can also be bent upward to be raised, so as to clamp the tear strip when the film is torn later.

[0048] In one embodiment, referring to Figure 3 , the pre-tearing rotating assembly 22 comprises a support shaft 222 and a rotator 221, the rotator 221 is installed on the support plate 23, and the support shaft 222 is installed on the rotator 221. The clamping assembly 21 is installed on the support shaft 222, the rotator 221 drives the support shaft 222 to rotate, and then drives the clamping assembly 21 to rotate. The rotator 221 can be a cylinder, a motor or the like. The support shaft 222 is provided to better extend the clamping assembly 21 to the side edge of the film feeding mechanism 10, thereby conveniently clamping the tear strip by the clamping assembly 21. Of course, in some embodiments, a motor or a cylinder is directly used as the pre-tearing rotating assembly 22 to directly drive the clamping assembly 21 to rotate.

[0049] In the above embodiment, the clamping cylinder 212 of the clamping assembly 21 is fixed on the support shaft 222.

[0050] In one embodiment, referring to Figure 3The pre-tearing mechanism 20 further comprises a detection assembly 24 for detecting the rotation angle of the support shaft 222 so as to control the bending angle of the tear strip. The detection assembly 24 comprises a detection sheet 242 connected to the support shaft 222 and a detector 241 for sensing the detection sheet 242, which is mounted on the support plate 23. When the support shaft 222 drives the detection sheet 242 to rotate, the detector 241 senses the detection sheet 242 to determine the rotation angle of the support shaft 222.

[0051] In one embodiment, referring to Figure 3 The pre-tearing mechanism 20 further comprises a first limiting assembly 27 for limiting the lifting stroke of the support plate 23. The first limiting assembly 27 comprises a first sensing sheet 272 mounted on the support plate 23 and a first sensor 271 for sensing the first sensing sheet 272, and at least two first sensors 271 are arranged on the pre-tearing lifter 25 at intervals. The first sensing sheet 272 is sensed by the first sensor 271 to determine the lifting position of the support plate 23, thereby controlling the lifting stroke of the support plate 23.

[0052] In one embodiment, referring to Figure 3 The pre-tearing mechanism 20 further comprises a pre-tearing lifting support 26 for supporting the pre-tearing lifter 25, and the pre-tearing lifter 25 is connected to the support plate 23. The pre-tearing lifting support 26 is arranged to facilitate the support of the pre-tearing lifter 25. The pre-tearing lifter 25 can be a screw-nut mechanism, a gear-and-rack mechanism, a linear motor, etc.

[0053] In one embodiment, referring to Figure 2 and Figure 3 The pre-tearing mechanism 20 further comprises a pre-tearing horizontal mover 28 for driving the pre-tearing lifter 25 to approach and move away from the film feeding mechanism 10, thereby driving the clamping assembly 21 to approach and move away from the film feeding mechanism 10 so that the clamping assembly 21 accurately clamps the tear strip on the film, facilitating the adaptation to different films. In one embodiment, the pre-tearing lifting support 26 is mounted on the pre-tearing horizontal mover 28. In one embodiment, the pre-tearing horizontal mover 28 can be a screw-nut mechanism, a gear-and-rack mechanism, a linear motor, etc.

[0054] In one embodiment, referring to Figure 2 and Figure 3 The pre-tearing mechanism 20 further comprises a second limiting assembly 29 for limiting the horizontal moving stroke of the pre-tearing lifter 25, which comprises a second sensing sheet 292 connected to the pre-tearing lifter 25 and a second sensor 291 for sensing the second sensing sheet 292, and at least two second sensors 291 are arranged on the pre-tearing horizontal mover 28 at intervals. The second limiting assembly 29 is arranged to facilitate the detection and control of the horizontal moving stroke of the pre-tearing lifter 25, to improve the protection of the pre-tearing lifter 25, to avoid the collision with the film feeding mechanism 10, and to improve the safety of the equipment.

[0055] In one embodiment, referring to Figure 4 , the film feeding mechanism 10 comprises a film suction device 12 and a longitudinal moving device 14, the film suction device 12 is mounted on the longitudinal moving device 14, and the film suction device 12 is driven to move longitudinally by the longitudinal moving device 14. The film suction device 12 is used to suck and fix the film, so as to convey the film.

[0056] In one embodiment, the longitudinal moving device 14 can be a screw-nut mechanism, a gear-rack mechanism, a linear motor, etc.

[0057] In one embodiment, the film feeding mechanism 10 further comprises a support frame 11 supporting the longitudinal moving device 14, so as to support and fix the longitudinal moving device 14.

[0058] In one embodiment, the film feeding mechanism 10 further comprises a longitudinal limiting assembly 15 for limiting the longitudinal moving stroke of the film suction device 12, the longitudinal limiting assembly 15 comprises a sensing sheet 151 connected to the film suction device 12 and a sensor 152 for sensing the sensing sheet 151, and at least two sensors 152 are arranged on the longitudinal moving device 14 in a spaced manner. The longitudinal limiting assembly 15 is arranged to facilitate the positioning and conveying of the film suction device 12, and to protect the film suction device 12.

[0059] In one embodiment, referring to Figures 5 to 7 , the film suction device 12 comprises a suction plate 121, a first positioning plate 123, a second positioning plate 125 and a support 122, the support 122 is supported on the longitudinal moving device 14; the first positioning plate 123 and the second positioning plate 125 are mounted on the support 122, and the first positioning plate 123 and the second positioning plate 125 are arranged on the adjacent two sides of the suction plate 121 respectively, the first positioning plate 123 is arranged on the side of the suction plate 121 close to the pre-tearing mechanism 20, and the first positioning plate 123 and the second positioning plate 125 are respectively used to position the adjacent two sides of the film on the suction plate 121, so as to position the film and facilitate the clamping of the film by the clamping assembly 21. The second positioning plate 125 is arranged in a spaced manner between the end close to the pre-tearing mechanism 20 and the adjacent end of the first positioning plate 123, so that a space for avoiding the tear strip of the film is formed between the second positioning plate 125 and the adjacent end of the first positioning plate 123, and when the film is supported on the suction plate 121, the tear strip on the film can be placed in the space, so as to facilitate the clamping by the clamping assembly 21.

[0060] In one embodiment, the film suction device 12 can also be provided with only the suction plate 121, and a positioning groove is arranged on the suction plate 121 to position the film.

[0061] In one embodiment, the support 122 is provided with a receiving cavity 1221, the first positioning plate 123 is slidingly installed on the support 122, the second positioning plate 125 is slidingly installed on the support 122, the film suction device 12 further comprises a first driver 124 for driving the first positioning plate 123 to move in the normal direction of the first positioning plate 123 and a second driver 126 for driving the second positioning plate 125 to move in the normal direction of the second positioning plate 125, and the first driver 124 and the second driver 126 are installed in the receiving cavity 1221; so that the first positioning plate 123 and the second positioning plate 125 can be respectively driven to move by the first driver 124 and the second driver 126, and the adjacent two sides of the diaphragm are flapped by the first positioning plate 123 and the second positioning plate 125 to position the diaphragm, which is convenient, accurate, can adapt to different diaphragms, and can reduce the accuracy requirement when placing the diaphragm on the suction plate 121.

[0062] In one embodiment, the receiving cavity 1221 is provided with a plurality of support rib plates 1222 for supporting the first driver 124 and the second driver 126. The support rib plates 1222 are provided to facilitate the installation and fixation of the first driver 124 and the second driver 126.

[0063] In one embodiment, the first driver 124 can be a cylinder, a linear motor or the like. In one embodiment, the second driver 126 can be a cylinder, a linear motor or the like.

[0064] In one embodiment, the film suction device 12 further comprises a first sliding rail 1232 arranged in the normal direction of the first positioning plate 123 and a first sliding block 1321 slidingly installed on the first sliding rail 1232, and the first positioning plate 123 is installed on the first sliding block 1321; so as to support the first positioning plate 123 and facilitate the smooth movement of the first positioning plate 123 driven by the first driver 124.

[0065] In one embodiment, the film suction device 12 further comprises a second sliding rail 1252 arranged in the normal direction of the second positioning plate 125 and a second sliding block 1251 slidingly installed on the second sliding rail 1252, and the second positioning plate 125 is installed on the second sliding block 1251; so as to support the second positioning plate 125 and facilitate the smooth movement of the second positioning plate 125 driven by the second driver 126.

[0066] In one embodiment, one side of the suction plate 121 is provided with a first notch 1211 for avoiding the first positioning plate 123, and the other side of the suction plate 121 is provided with a second notch 1212 for avoiding the second positioning plate 125, and the first notch 1211 and the second notch 1212 are communicated. The first notch 1211 and the second notch 1212 are communicated on the suction plate 121, so that a larger vacancy area is formed at the communication position of the first notch 1211 and the second notch 1212, and the tearing strip on the diaphragm can be clamped by the clamping assembly 21 in the vacancy area when the first positioning plate 123 and the second positioning plate 125 position the diaphragm.

[0067] In one embodiment, referring to Figures 4 to 6 , the diaphragm suction device 12 further comprises a rotator 13 for driving the diaphragm suction device 12 to rotate, the rotator 13 is installed on the longitudinal conveyor 14, and the diaphragm suction device 12 is installed on the rotator 13. The rotator 13 is arranged to rotate the diaphragm suction device 12 when the longitudinal conveyor 14 conveys the diaphragm suction device 12 to the pre-tearing mechanism 20, so that the tearing strip on the diaphragm on the diaphragm suction device 12 is opposite to the clamping assembly 21, thereby facilitating clamping by the clamping assembly 21. In one embodiment, the rotator 13 can be a motor, a pneumatic cylinder or the like.

[0068] Embodiment two:

[0069] The diaphragm feeding device 100 of the present embodiment is different from the diaphragm feeding device 100 of embodiment one in that:

[0070] Referring to Figure 8 , the diaphragm feeding device 100 of the present embodiment further comprises a diaphragm supplying mechanism 30 and a diaphragm moving mechanism 40, the diaphragm supplying mechanism 30 is arranged at the side of the diaphragm feeding mechanism 10, and the diaphragm moving mechanism 40 is arranged across the diaphragm supplying mechanism 30 and the diaphragm feeding mechanism 10; the diaphragm supplying mechanism 30 is used for supplying diaphragms 91; and the diaphragm moving mechanism 40 is used for moving the diaphragms 91 on the diaphragm supplying mechanism 30 to the diaphragm feeding mechanism 10. The diaphragm supplying mechanism 30 and the diaphragm moving mechanism 40 are arranged to realize automatic feeding of diaphragms to the diaphragm feeding mechanism 10, thereby improving the efficiency.

[0071] In one embodiment, referring to Figure 9 , the diaphragm supplying mechanism 30 comprises a supporting plate 31, a material frame 34, a diaphragm supplying lifter 33 and a fixing base 32, the diaphragm supplying lifter 33 is connected with the supporting plate 31, the supporting plate 31 is arranged in the material frame 34, the diaphragm supplying lifter 33 is installed on the fixing base 32, and the material frame 34 is installed on the fixing base 32. The supporting plate 31 is used for stacking and supporting diaphragms 91, i.e. a plurality of diaphragms 91 can be stacked on the supporting plate 31. The material frame 34 is used for positioning the diaphragms 91, so as to position the diaphragms 91. The diaphragm supplying lifter 33 drives the supporting plate 31 to ascend and descend in the material frame 34, so as to realize diaphragm 91 supplying.

[0072] In one embodiment, referring to Figure 9At least one side of the material frame 34 is provided with an air nozzle 35 for blowing the stacked film sheet 91 on the supporting plate 31 apart, so as to facilitate separating the stacked film sheet 91 and to facilitate the film moving mechanism 40 to take out one film sheet 91 at a time.

[0073] In one embodiment, referring to Figure 9 The material frame 34 comprises vertical plates 341 respectively positioned at two adjacent sides of the film sheet 91, positioning rods 342 respectively used for resisting the other two sides of the film sheet 91, sliding plates 343 supporting the positioning rods 342, pressing rods 344 pressing the sliding plates 343, and locking blocks 345 respectively locking the pressing rods 344. Each sliding plate 343 is slidably connected to the fixed base 32, each locking block 345 is fixedly connected to the corresponding positioning rod 342, each positioning rod 342 is threadedly connected to the corresponding locking block 345, and each vertical plate 341 is installed on the fixed base 32. This structure can move the corresponding positioning rods 342 on the sides of the supporting plate 31, so as to facilitate placing the film sheet 91 on the supporting plate 31, and then move the positioning rods 342 close to the supporting plate 31 to position the film sheet 91. In some embodiments, a frame structure can also be used as the material frame 34. In some other embodiments, the positioning rods 342, the sliding plates 343 and the pressing rods 344 can be respectively arranged on the four sides of the supporting plate 31, so as to position the film sheet 91 through the positioning rods 342 on the four sides of the supporting plate 31.

[0074] In one embodiment, referring to Figure 9 Each sliding plate 343 is provided with at least two positioning rods 342, so as to better position the film sheet 91.

[0075] In one embodiment, referring to Figure 10 The film moving mechanism 40 comprises a film sucking assembly 41 for sucking the film sheet 91, a horizontal moving driver 44 for driving the film sucking assembly 41 to move back and forth between the film supplying mechanism 30 and the film feeding mechanism 10, and a film moving frame 45 supporting the horizontal moving driver 44. The horizontal moving driver 44 is arranged across the film supplying mechanism 30 and the film feeding mechanism 10. The film sucking assembly 41 sucks the film sheet 91, and then the horizontal moving driver 44 drives the film sucking assembly 41 to convey the film sheet 91 to the film feeding mechanism 10, so as to realize automatic film feeding.

[0076] In one embodiment, the horizontal moving driver 44 can be a screw nut mechanism, a gear and rack mechanism, a linear motor, etc.

[0077] In one embodiment, the film sucking assembly 41 comprises a suction disc 411 and a lifting driver 412 for driving the suction disc 411 to lift. The lifting driver 412 is installed on the horizontal moving driver 44, so as to facilitate the suction disc 411 to suck the film sheet 91. In some embodiments, the film sucking assembly 41 can also directly use a suction plate, etc.

[0078] In one embodiment, the film moving mechanism 40 further comprises a stop plate 42 for positioning the film sheet 91, and the stop plate 42 is provided with an opening 421 for the suction cup 411 to pass through. The stop plate 42 is provided to better position the film sheet 91, and when the film sheet 91 is placed, the stop plate 42 can press against the film sheet 91 to position the film sheet 91 on the film feeding mechanism 10.

[0079] In one embodiment, the film moving mechanism 40 further comprises a vibration assembly 43 for vibrating the film sheet 91, and the vibration assembly 43 is installed on the horizontal moving driver 44, and the film suction assembly 41 is connected to the vibration assembly 43. The vibration assembly 43 is provided to vibrate the film sheet 91 when the film sheet 91 is taken, so as to facilitate the separation of the stacked film sheets 91 and ensure that only one film sheet 91 is taken at a time.

[0080] In one embodiment, the vibration assembly 43 comprises a vibration rod 431 for pushing the film sheet 91 and a vibrator 432 for driving the vibration rod 431 to vibrate, and the vibrator 432 is installed on the horizontal moving driver 44. The vibrator 432 is used to push the vibration rod 431 to vibrate, so as to push the film sheet 91 to vibrate, and the structure is simple. In some embodiments, the vibration assembly 43 can be a gas cylinder, a motor or the like.

[0081] The embodiments of the present application further provide a film pasting machine comprising the film sheet feeding device 100 according to any one of the above embodiments. The film pasting machine uses the film sheet feeding device 100, and in the automatic feeding process, the protective film on the film sheet 91 can be pre-torn, so as to improve the success rate of film tearing and the film pasting efficiency.

[0082] The above only describes optional embodiments of the present application and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Diaphragm feeding device, characterized in that: It includes a film feeding mechanism for conveying a film sheet and a pre-tearing mechanism for pre-tearing the protective film on the film sheet, the pre-tearing mechanism is arranged on the side of the film feeding mechanism, the pre-tearing mechanism includes a clamping assembly for clamping the tear strip on the protective film, a support plate supporting the clamping assembly and a pre-tearing lifter for driving the clamping assembly to move up and down, the clamping assembly is installed on the support plate, the support plate is installed on the pre-tearing lifter, and the pre-tearing lifter is arranged on the side of the film feeding mechanism; The film feeding mechanism includes a film sucker for adsorbing the film sheet and a longitudinal conveyor driving the film sucker to move longitudinally, the film sucker is installed on the longitudinal conveyor, and the film sucker includes a suction plate, a first positioning plate, a second positioning plate and a support, and the support is supported on the longitudinal conveyor; the first positioning plate and the second positioning plate are installed on the support, and the first positioning plate and the second positioning plate are respectively provided on adjacent two sides of the suction plate, and the first positioning plate is provided on a side of the suction plate close to the pre-tearing mechanism, and the first positioning plate and the second positioning plate are respectively used to position adjacent two sides of the film sheet on the suction plate, and the second positioning plate is spaced apart between one end close to the pre-tearing mechanism and the adjacent end of the first positioning plate, so that a space for avoiding the tearing strip of the film is formed between the second positioning plate and the adjacent end of the first positioning plate; A first notch is formed on one side of the suction plate to avoid the first positioning plate, and a second notch is formed on the other side of the suction plate to avoid the second positioning plate. The first notch and the second notch are connected to form an empty area, so that the clamping assembly can clamp the tear strip on the membrane in the empty area. The film feeding device further comprises a film supply mechanism for supplying a film and a film transfer mechanism for transferring the film on the film supply mechanism to the film delivery mechanism, wherein the film supply mechanism is arranged on the side of the film delivery mechanism, and the film transfer mechanism is arranged across the film supply mechanism and the film delivery mechanism; The film supply mechanism includes a supporting plate, a material frame, a film supply lifter and a fixed seat, the film supply lifter is connected to the supporting plate, the supporting plate is placed in the material frame, the film supply lifter is installed on the fixed seat, the material frame is installed on the fixed seat, the supporting plate is used to stack and support the film sheets, the material frame is used to position the film sheets, the film supply lifter is used to drive the supporting plate to rise and fall in the material frame, and at least one side of the material frame is provided with an air nozzle for blowing the film sheets stacked on the supporting plate to separate; The film transfer mechanism includes a film suction assembly for sucking the film sheet, a transverse drive for driving the film suction assembly to and from the film supply mechanism and the film delivery mechanism, and a film transfer frame supporting the transverse drive, wherein the film transfer frame is arranged across the film supply mechanism and the film delivery mechanism; the film transfer mechanism also includes a vibration assembly for vibrating and separating the film sheet, the vibration assembly being mounted on the transverse drive, and the film suction assembly being connected to the vibration assembly; A accommodating cavity is provided in the support, the first positioning plate is slidably mounted on the support, the second positioning plate is slidably mounted on the support, the film absorber includes a first driver that pushes the first positioning plate to move along the normal direction of the first positioning plate and a second driver that pushes the second positioning plate to move along the normal direction of the second positioning plate, the first driver and the second driver are installed in the accommodating cavity; the film feeding mechanism also includes a rotator for driving the film absorber to rotate, the rotator is mounted on the longitudinal conveyor, and the film absorber is mounted on the rotator.

2. The film feeding device according to claim 1, characterized in that: The clamping assembly includes two clamping jaws and a clamping cylinder for driving the two clamping jaws to open and close, and the clamping cylinder is supported on the support plate.

3. The film feeding device according to claim 1, characterized in that: The pre-tearing mechanism further includes a pre-tearing rotating assembly that drives the clamping assembly to rotate. The clamping assembly is mounted on the pre-tearing rotating assembly, and the pre-tearing rotating assembly is mounted on the support plate.

4. The film feeding device according to claim 1, characterized in that: The pre-tear mechanism further includes a pre-tear transverse shifter for driving the pre-tear lifter to approach and move away from the film feeding mechanism.

5. Film laminating machine, characterized by: The device comprises a film feeding device as described in any one of claims 1 to 4.

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