Composite film stripping device

Abstract

The invention discloses a composite film stripping device, comprising a finished product feeding shaft, a tape feeding shaft, a tape receiving shaft, a finished product receiving shaft and a material guiding platform, wherein the finished product feeding shaft is used for unwinding the finished product tape, the finished product tape is guided to the finished product receiving shaft by the material guiding platform and is received by the finished product receiving shaft, the tape feeding shaft is used for unwinding the waste discharge tape, and the tape receiving shaft is used for receiving the waste discharge tape; a stripping knife and a floating adsorption platform are also provided on the material guiding platform, the stripping knife is located directly above the floating adsorption platform, and is used for pressing the waste discharge tape onto the finished product tape, and the side of the finished product tape facing away from the waste discharge tape is adsorbed on the floating adsorption platform; a floating adsorption platform matched with the stripping knife is provided on the material guiding platform, so that the waste discharge tape and the finished product tape are closely fitted, and during the feeding process of the finished product tape and the waste discharge tape, the floating adsorption platform can float according to the thickness at the stress point of the finished product tape, so as to ensure the uniformity of the fitting between the waste discharge tape and the finished product tape, thereby improving the production yield.

Description

Technical Field

[0001] The invention relates to the technical field of wireless charging, and in particular to a composite film peeling device. Background Art

[0002] In recent years, with the gradual popularization of wireless charging functions in smartphones, wireless charging technology has developed at an astonishing speed. Flexible material attachment and assembly has also become the mainstream production method in the industry, and assembly and bonding mechanisms are widely used. However, with the application of some flexible materials, there are also certain limitations and obstacles to mass production. For example, graphite material itself is soft and is prone to bubbles, pressure marks and other poor appearance when attached. Therefore, it is necessary to add a protective film to the raw materials before assembly and bonding. The last step of assembly and bonding requires attaching a composite protective film to the finished product to protect the surface of the finished product. Since the composite protective film itself also has a cover film, the cover film on the surface of the composite protective film needs to be removed after bonding is completed. Generally, this is done by attaching a waste discharge tape to the side of the cover film away from the composite protective film, and then peeling off the waste discharge tape so that the cover film can be removed together with the waste discharge tape. However, in the actual production process, the waste discharge tape is often difficult to attach flatly to the cover film, and gaps or bubbles are likely to appear between the cover film and the waste discharge tape. This results in uneven force on the surface of the cover film during the removal of the waste discharge tape, which results in the cover film being unable to be effectively removed, or the cover film being removed together with the composite protective film, seriously affecting the production yield. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a composite film stripping device with high production yield.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a composite film peeling device, comprising a finished product feeding shaft, a tape feeding shaft, a tape taking-up shaft, a finished product taking-up shaft and a material guide table, the finished product feeding shaft is used to unwind the finished material tape, the finished material tape is guided to the finished product taking-up shaft via the material guide table and is taken up by the finished product taking-up shaft, the tape feeding shaft is used to unwind the waste discharge tape, and the tape taking-up shaft is used to take up the waste discharge tape; the material guide table is also provided with a stripping knife and a floating adsorption table, the stripping knife is located directly above the floating adsorption table, and is used to press the waste discharge tape onto the finished product tape, and the side of the finished product tape facing away from the waste discharge tape is adsorbed on the floating adsorption table.

[0005] The beneficial effects of the present invention are as follows: the composite film stripping device provided by the present invention has the characteristic of high production yield, and a floating adsorption table coordinated with the stripping knife is arranged on the material guiding table, so that the waste discharge tape and the finished material tape are closely fitted, and during the feeding process of the finished material tape and the waste discharge tape, the floating adsorption table can float according to the thickness at the force point of the finished material tape, thereby ensuring the uniformity of the fitting between the waste discharge tape and the finished material tape, and improving the production yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a schematic diagram of the cross-sectional structure of a finished material strip according to an embodiment of the present invention;

[0007] Figure 2 It is a front view of the composite film stripping device according to the first embodiment of the present invention;

[0008] Figure 3 for Figure 2 Detailed view of point A in the middle;

[0009] Figure 4 It is a side view of the composite film stripping device according to the first embodiment of the present invention;

[0010] Figure 5 It is a top view of the composite film stripping device according to the first embodiment of the present invention.

[0011] Description of labels:

[0012] 1. Finished material strip; 11. Material strip bottom film; 12. Material; 13. Composite protective film; 14. Cover film; 2. Finished product feeding shaft; 21. Third motor; 3. Finished product receiving shaft; 31. First motor; 32. First magnetic powder clutch; 4. Adhesive tape feeding shaft; 41. Second magnetic powder clutch; 5. Adhesive tape receiving shaft; 51. Second motor; 6. Material guide table; 61. Unwinding platform; 62. Waste discharge platform; 621. Mounting groove; 63. Stripping knife; 631. Bushing; 632. Locking piece; 64. Mounting rod; 65. Floating adsorption table; 651. Vacuum tube; 652. Linear slide rod; 653. Linear bearing; 654. Elastic piece; 66. Photoelectric sensor; 7. Waste discharge tape; 8. Mounting plate. DETAILED DESCRIPTION

[0013] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0014] Please refer to Figures 1 to 5 , a composite film stripping device, comprising a finished product feeding shaft 2, a tape feeding shaft 4, a tape receiving shaft 5, a finished product receiving shaft 3 and a guide platform 6, wherein the finished product feeding shaft 2 is used to unwind a finished product tape 1, the finished product tape 1 is guided to the finished product receiving shaft 3 via the guide platform 6 and is received by the finished product receiving shaft 3, the tape feeding shaft 4 is used to unwind a waste discharge tape 7, and the tape receiving shaft 5 is used to receive the waste discharge tape 7; a stripping knife 63 and a floating adsorption platform 65 are also provided on the guide platform 6, the stripping knife 63 is located directly above the floating adsorption platform 65, and is used to press the waste discharge tape 7 onto the finished product tape 1, and the side of the finished product tape 1 facing away from the waste discharge tape 7 is adsorbed on the floating adsorption platform 65.

[0015] It should be noted that please combine Figure 1 , the existing finished material strip 1 is generally composed of a material strip bottom film 11, a material 12, a composite protective film 13 and a cover film 14, wherein the material 12 is attached to the material strip bottom film 11, the composite protective film 13 is attached to the material 12, and the cover film 14 is attached to the composite protective film 13, and the waste discharge tape 7 is pressed on the cover film 14 by the stripping knife 63, so that the cover film 14 is removed together with the waste discharge tape 7; however, the material 12 on the material strip bottom film 11 has a certain thickness, so the tape surface thickness of the finished material strip 1 is uneven, and the gap between the stripping knife 63 and the placement platform of the finished material 12 is fixed, so that gaps or bubbles are easily formed after the cover film 14 and the waste discharge tape 7 are attached; so that the surface force of the cover film 14 is uneven during the removal of the waste discharge tape 7, resulting in the cover film 14 being unable to be effectively removed, or the cover film 14 being removed together with the composite protective film 13;

[0016] The working principle of the present invention is briefly described as follows: the finished material strip 1 is led out from the finished material feeding shaft 2, guided to the finished material receiving shaft 3 through the material guide table 6 and is wound up by the finished material receiving shaft 3, a gap is formed between the stripping knife 63 and the floating adsorption table 65, the waste discharge tape 7 and the finished material strip 1 pass through the gap and are respectively wound up, the floating adsorption table 65 adsorbs the finished material strip 1 to float up and down, so that the gap between the stripping knife 63 and the floating adsorption table 65 can be adaptively adjusted.

[0017] From the above description, it can be seen that the beneficial effect of the present invention is that a floating adsorption platform 65 is arranged on the material guide table 6 to cooperate with the stripping knife 63, so that the waste discharge tape 7 is closely fitted with the finished material tape 1, and during the feeding process of the finished material tape 1 and the waste discharge tape 7, the floating adsorption platform 65 can float according to the thickness of the finished material tape 1 at the force point, thereby ensuring the uniformity of the fitting between the waste discharge tape 7 and the finished material tape 1, thereby improving the production yield.

[0018] Furthermore, it also includes a first motor 31, a second motor 51, a third motor 21, a first magnetic powder clutch 32 and a second magnetic powder clutch 41, the first magnetic powder clutch 32 connects the first motor 31 and the finished product receiving shaft 3, the second magnetic powder clutch 41 connects the tape feeding shaft 4, the second motor 51 is connected to the tape receiving shaft 5, and the third motor 21 is connected to the finished product feeding shaft 2; the output torque of the first magnetic powder clutch 32 is smaller than the output torque of the second magnetic powder clutch 41, and the sum of the output torque of the second motor 51 and the output torque of the first magnetic powder clutch 32 is greater than the output torque of the second magnetic powder clutch 41.

[0019] As can be seen from the above description, the first motor 31 is used to drive the first magnetic powder clutch 32, and the first magnetic powder clutch 32 outputs a torque in the same direction as the winding direction of the finished product receiving shaft 3; the second magnetic powder clutch 41 outputs a torque in the opposite direction to the unwinding direction of the tape feeding shaft 4; the second motor 51 outputs a torque in the same direction as the winding direction of the tape receiving shaft 5; the third motor 21 outputs a torque in the same direction as the unwinding direction of the finished product feeding shaft 2; when the finished product feeding shaft 2 is not unwinding, When the output torque of the second magnetic powder clutch 41 is greater than the output torque of the finished product receiving shaft 3, the finished product tape 1 and the waste discharge tape 7 are both in a stationary state; when the finished product feeding shaft 2 is unwinding, the second motor 51 drives the tape receiving shaft 5 to rewind the waste discharge tape 7. Since the sum of the output torque of the second motor 51 and the output torque of the first magnetic powder clutch 32 is greater than the output torque of the second magnetic powder clutch 41, the finished product tape 1 and the waste discharge tape 7 are rewound and transported normally.

[0020] Furthermore, the material guide table 6 includes an unwinding platform 61, which is located directly below the finished product feeding shaft 2. The unwinding platform 61 is provided with a photoelectric sensor 66 for detecting the finished material tape 1. When the photoelectric sensor 66 detects the finished material tape 1, the second motor 51 drives the tape receiving shaft 5 to rotate.

[0021] From the above description, it can be seen that the photoelectric sensor 66 is used to detect whether the finished material tape 1 is on the unwinding platform 61. When the photoelectric sensor 66 detects that the finished material tape 1 is on the unwinding platform 61, the second motor 51 drives the tape taking-up shaft 5 to rotate for rewinding; when the photoelectric sensor 66 detects that there is no finished material tape 1 on the unwinding platform 61, the second motor 51 stops the torque output. At this time, the third motor 21 drives the finished product feeding shaft 2 for unwinding.

[0022] Furthermore, the material guiding platform 6 is also provided with a mounting groove 621 for mounting the floating adsorption platform 65 .

[0023] It can be seen from the above description that the installation groove 621 is convenient for installing the floating adsorption platform 65 .

[0024] Furthermore, a linear slide bar 652 is provided at the bottom of the floating adsorption platform 65 , and a linear bearing 653 slidably connected to the linear slide bar 652 is provided in the mounting groove 621 .

[0025] It can be known from the above description that the linear slide rod 652 is slidably connected to the linear bearing 653 to ensure that the floating adsorption platform 65 can float up and down.

[0026] Furthermore, an elastic member 654 connected to the bottom of the mounting groove 621 is further provided at the bottom of the floating adsorption platform 65 .

[0027] It can be known from the above description that the elastic member 654 is used to support the floating adsorption platform 65 to return to its original position.

[0028] Furthermore, a mounting rod 64 is provided on the material guiding platform 6 , and the stripping knife 63 is detachably mounted on the mounting rod 64 .

[0029] Furthermore, the stripping knife 63 is provided with a shaft sleeve 631 , and the shaft sleeve 631 can be slidably sleeved on the mounting rod 64 , and a locking member 632 is provided on the shaft sleeve 631 .

[0030] It can be seen from the above description that the installation rod 64 facilitates the installation of the stripping knife 63, ensures the stability of the installation position of the stripping knife 63, and can adjust the position of the stripping knife 63 according to actual production requirements.

[0031] Furthermore, a suction cavity is provided inside the floating adsorption platform 65 , a plurality of suction holes connected to the suction cavity are provided on the top of the floating adsorption platform 65 , and a vacuum tube 651 connected to the suction cavity is provided on the side wall of the floating adsorption platform 65 .

[0032] Embodiment 1

[0033] Please refer to Figures 1 to 5 , Embodiment 1 of the present invention is: a composite film peeling device, comprising a finished product feeding shaft 2, a tape feeding shaft 4, a tape receiving shaft 5, a finished product receiving shaft 3 and a guide table 6, wherein the finished product feeding shaft 2 is used to unwind a finished product tape 1, the finished product tape 1 is guided to the finished product receiving shaft 3 via the guide table 6 and is received by the finished product receiving shaft 3, the tape feeding shaft 4 is used to unwind a waste tape 7, and the tape receiving shaft 5 is used to receive the waste tape 7; a stripping knife 63 and a floating adsorption table 65 are also provided on the guide table 6, the stripping knife 63 is located directly above the floating adsorption table 65, and is used to press the waste tape 7 onto the finished product tape 1, and the side of the finished product tape 1 facing away from the waste tape 7 is adsorbed on the floating adsorption table 65.

[0034] Preferably, please combine Figure 5The composite film peeling device also includes a first motor 31, a second motor 51, a third motor 21, a first magnetic powder clutch 32 and a second magnetic powder clutch 41. The first magnetic powder clutch 32 connects the first motor 31 and the finished product receiving shaft 3. The first motor 31 is used to drive the first magnetic powder clutch 32. The first magnetic powder clutch 32 outputs a torque in the same direction as the winding direction of the finished product receiving shaft 3; the second magnetic powder clutch 41 is connected to the tape feeding shaft 4, and the second magnetic powder clutch 41 outputs a torque in the opposite direction of the unwinding direction of the tape feeding shaft 4; the second motor 51 is connected to the tape receiving shaft 5, and the second motor 51 outputs a torque in the same direction as the winding direction of the tape receiving shaft 5. Torque; the third motor 21 is connected to the finished product feeding shaft 2, and the third motor 21 outputs a torque in the same direction as the unwinding direction of the finished product feeding shaft 2; the output torque of the first magnetic powder clutch 32 is smaller than the output torque of the second magnetic powder clutch 41. When the finished product feeding shaft 2 is not unwinding, the finished material belt 1 and the waste discharge tape 7 are both in a stationary state; the sum of the output torque of the second motor 51 and the output torque of the first magnetic powder clutch 32 is greater than the output torque of the second magnetic powder clutch 41. When the finished product feeding shaft 2 is unwinding, the second motor 51 drives the tape rewinding shaft 5 to rewind the waste discharge tape 7, and the finished material belt 1 and the waste discharge tape 7 are rewound and transported normally.

[0035] Specifically, the composite film stripping device also includes a mounting plate 8, and the first motor 31, the second motor 51, the third motor 21, the first magnetic powder clutch 32 and the second magnetic powder clutch 41 are all mounted on the mounting plate 8; more specifically, the output shaft of the first motor 31 passes through the mounting plate 8 and is connected to the first magnetic powder clutch 32; the output shaft of the second motor 51 passes through the mounting plate 8 and is connected to the tape receiving shaft 5; the second magnetic powder clutch 41 is fixedly mounted on the mounting plate 8 and is connected to the tape feeding shaft 4; the output shaft of the third motor 21 passes through the mounting plate 8 and is connected to the finished product feeding shaft 2.

[0036] More specifically, the first magnetic powder clutch 32 and the second magnetic powder clutch 41 are both purchased parts; the magnetic powder clutch is formed by combining a transmission unit (input shaft) and a driven unit (output shaft), wherein the transmission unit has a coil, and magnetic powder is filled between the transmission unit and the driven unit. When the coil is not conductive, the torque will not be transmitted from the transmission unit to the driven unit, but when the coil is energized, the magnetic powder will be attracted by the magnetic force to harden it, and the torque will be transmitted to the driven unit during continuous sliding. The transmitted torque is roughly proportional to the excitation current. Therefore, the torque can be controlled by changing the excitation current. Since the working principle of the magnetic powder clutch belongs to the prior art, it will not be elaborated here.

[0037] Preferably, please combine Figure 2 and Figure 5 The material guide platform 6 includes an unwinding platform 61, and the unwinding platform 61 is located directly below the finished product feeding shaft 2. The unwinding platform 61 is provided with a photoelectric sensor 66 for detecting the finished material tape 1. When the photoelectric sensor 66 detects the finished material tape 1, the second motor 51 drives the tape receiving shaft 5 to rotate. The photoelectric sensor 66 is used to detect whether there is the finished material tape 1 on the unwinding platform 61. When the photoelectric sensor 66 detects that there is the finished material tape 1 on the unwinding platform 61, the second motor 51 drives the tape receiving shaft 5 to rotate for winding; when the photoelectric sensor 66 detects that there is no finished material tape 1 on the unwinding platform 61, the second motor 51 stops the torque output. At this time, the third motor 21 drives the finished product feeding shaft 2 to unwind.

[0038] Specifically, the material guide platform 6 also includes a waste discharge platform 62, the floating adsorption platform 65 and the stripping knife 63 are installed on the waste discharge platform 62, and the waste discharge platform 62 is also provided with a mounting groove 621 for mounting the floating adsorption platform 65, so as to facilitate the installation of the floating adsorption platform 65; more specifically, four linear slide bars 652 are provided at the bottom of the floating adsorption platform 65, and a linear bearing 653 slidably connected to the linear slide bar 652 is provided in the mounting groove 621, thereby ensuring that the floating adsorption platform 65 can float up and down; the bottom of the floating adsorption platform 65 is also provided with an elastic member 654 connected to the bottom of the mounting groove 621, and the elastic member 654 is used to support the floating adsorption platform 65 to return to its original position; optionally, the elastic member 654 is a compression spring.

[0039] Preferably, the material guide platform 6 is provided with a mounting rod 64, specifically, the mounting rod 64 is arranged on the waste discharge platform 62, and the stripping knife 63 can be detachably mounted on the mounting rod 64; more specifically, the stripping knife 63 is provided with a shaft sleeve 631, the shaft sleeve 631 can be slidably sleeved on the mounting rod 64, and the shaft sleeve 631 is provided with a locking piece 632; in this way, it is convenient to install the stripping knife 63, the stability of the installation position of the stripping knife 63 is ensured, and the position of the stripping knife 63 can be adjusted according to actual production needs; in detail, the floating adsorption platform 65 is provided with an air suction cavity, the top of the floating adsorption platform 65 is provided with a plurality of air suction holes connected to the air suction cavity, the side wall of the floating adsorption platform 65 is provided with a vacuum tube 651 connected to the air suction cavity, and the vacuum tube 651 is externally connected to a vacuum suction device.

[0040] In this embodiment, the height of the waste discharge platform 62 is higher than the unwinding platform 61, and the mounting plate 8 is provided with a guide roller, which presses the waste discharge tape 7 unwound from the tape feeding shaft 4 onto the waste discharge platform 62. One end of the unwinding platform 61 is tilted to facilitate the accurate unwinding of the finished material tape 1 onto the unwinding platform 61.

[0041] To sum up, the composite film stripping device provided by the present invention has the characteristics of high production yield. A floating adsorption table coordinated with the stripping knife is arranged on the material guide table, so that the waste discharge tape and the finished material tape are closely fitted. During the feeding process of the finished material tape and the waste discharge tape, the floating adsorption table can float according to the thickness of the force point of the finished material tape, thereby ensuring the uniformity of the fitting between the waste discharge tape and the finished material tape, thereby improving the production yield; through the mutual cooperation of each rotating shaft, the tension of the waste discharge tape and the finished material tape is controlled to ensure the flatness of the fitting, thereby further improving the production yield.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A composite film peeling device, characterized in that: The invention comprises a finished product feeding shaft, a tape feeding shaft, a tape receiving shaft, a finished product receiving shaft and a material guide table, wherein the finished product feeding shaft is used for unwinding the finished product tape, the finished product tape is guided to the finished product receiving shaft through the material guide table and is received by the finished product receiving shaft, the tape feeding shaft is used for unwinding the waste discharge tape, and the tape receiving shaft is used for receiving the waste discharge tape; the material guide table is also provided with a stripping knife and a floating adsorption table, the stripping knife is located directly above the floating adsorption table, and is used for pressing the waste discharge tape onto the finished product tape, and the side of the finished product tape facing away from the waste discharge tape is adsorbed on the floating adsorption table; the invention also comprises a first motor, a second motor, a third motor, a first magnetic powder clutch and a second magnetic powder clutch, the first magnetic powder clutch The clutch connects the first motor and the finished product receiving shaft, the second magnetic powder clutch connects the tape feeding shaft, the second motor connects the tape receiving shaft, and the third motor connects the finished product feeding shaft; the output torque of the first magnetic powder clutch is smaller than the output torque of the second magnetic powder clutch, and the sum of the output torque of the second motor and the output torque of the first magnetic powder clutch is larger than the output torque of the second magnetic powder clutch; the material guide table is also provided with a mounting groove for mounting the floating adsorption table; a linear slide rod is provided at the bottom of the floating adsorption table, and a linear bearing slidably connected to the linear slide rod is provided in the mounting groove; the bottom of the floating adsorption table is also provided with an elastic member connected to the bottom of the mounting groove.

2. The composite film peeling device according to claim 1, characterized in that: The material guide table includes an unwinding platform, which is located directly below the finished product feeding shaft. A photoelectric sensor for detecting the finished material tape is provided on the unwinding platform. When the photoelectric sensor detects the finished material tape, the second motor drives the tape receiving shaft to rotate.

3. The composite film peeling device according to claim 1, characterized in that: The material guiding platform is provided with a mounting rod, and the stripping knife is detachably mounted on the mounting rod.

4. The composite film peeling device according to claim 3, characterized in that: The stripping knife is provided with a shaft sleeve, the shaft sleeve can be slidably sleeved on the mounting rod, and the shaft sleeve is provided with a locking piece.

5. The composite film peeling device according to claim 1, characterized in that: An air suction cavity is arranged inside the floating adsorption platform, a plurality of air suction holes connected with the air suction cavity are arranged on the top of the floating adsorption platform, and a vacuum tube connected with the air suction cavity is arranged on the side wall of the floating adsorption platform.

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