TAC pretreatment unreeling automatic splicing device

Abstract

The utility model discloses a TAC pretreatment unwinding and automatic splicing device, and belongs to the field of TAC unwinding and splicing, the TAC pretreatment unwinding and automatic splicing device comprises a rack I and a rack II, the rack I is provided with a rotating frame, the rotating frame is connected with the rack I through a rotating structure, the rotating frame is symmetrically provided with an unwinding driving roller I and an unwinding driving roller II which are used for unwinding a TAC coiled material, and the unwinding driving roller I and the unwinding driving roller II are connected with the rack II through a rotating structure. The rack II is provided with a splicing big arm, the splicing big arm is connected with the rack II through a telescopic structure, and the splicing big arm is provided with a cutter structure and a compression roller structure which have an extending function; a first driven guide roller used for guiding TAC coiled materials to be conveyed is arranged on the first rack, and a second driven guide roller, a third driven guide roller, a fourth driven guide roller and a discharging roller are arranged on the second rack. According to the automatic splicing device for TAC pretreatment unwinding, the problems that the TAC quality is affected due to the fact that the manual splicing efficiency of TAC unwinding is low and the splicing position is irregular are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of TAC unwind splicing, and in particular to an automatic splicing device for TAC pre-treatment unwind. Background Art

[0002] TAC (triacetyl cellulose) material is an optical film material with excellent performance. TAC material has very high transparency, allowing light to pass through almost unobstructed, ensuring clear imaging of optical products; TAC material has a certain ability to absorb ultraviolet rays, reducing damage to optical products by ultraviolet rays. At the same time, under different temperature and humidity conditions, its optical properties remain relatively stable. TAC material can provide a certain degree of protection without being too hard to process. It has good flexibility and can adapt to optical elements of different shapes. It can also resist the erosion of general chemical substances, ensuring the long-term use of optical products in various environments. TAC material is widely used in fields such as spectacle lenses, liquid crystal displays, and photographic filters.

[0003] There are generally two ways for the existing TAC pre-treatment unwind splicing. One type of TAC pre-treatment production line is the manual splicing method, which requires the entire line to stop to complete the splicing. The full-line stop results in a reduction in the production efficiency of the production line. There are wrinkles and unevenness at the splicing point, and several meters of TAC wrinkles are caused during production operation, seriously affecting the quality of TAC. Another type of TAC pre-treatment splicing is a production line with a film storage mechanism. This production line with a film storage mechanism can manually complete the splicing of the supply and take-up without stopping the entire line. The film storage mechanism of this splicing form has a large floor area and high manufacturing cost, and still requires manual splicing. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic splicing device for TAC pre-treatment unwind, which solves the problems of low efficiency of manual splicing of TAC unwind and unevenness at the splicing point affecting the quality of TAC.

[0005] To achieve the above purpose, the present invention provides an automatic splicing device for TAC pre-treatment unwind, including a first frame and a second frame. A rotating frame is arranged on the first frame, and the rotating frame is connected to the first frame through a rotating structure. On the rotating frame, a first unwind driving roller and a second unwind driving roller for unwinding the TAC coil are symmetrically arranged. On the second frame, a splicing large arm with a rotating function is arranged, and the splicing large arm is connected to the second frame through a telescopic structure. On the splicing large arm, a cutter structure with an extending function and a pressure roller structure are arranged; on the first frame, a first driven guide roller for guiding the TAC coil to be transported is arranged, and on the second frame, a second driven guide roller, a third driven guide roller, and a fourth driven guide roller for guiding the TAC coil to be transported are arranged. On the second frame, a discharge roller for transporting the TAC coil to the next processing step is arranged.

[0006] Preferably, the rotating structure includes a rotating base which is arranged at the top of the first frame. The center of the rotating frame is rotatably connected to the rotating base through a rotating shaft, and the rotating shaft is connected to the output shaft of the motor.

[0007] Preferably, the first unwinding driving roller, the second unwinding driving roller, and the first driven guide roller are all rotatably connected to the first frame, and the second driven guide roller, the third driven guide roller, the fourth driven guide roller, and the discharging roller are all rotatably connected to the second frame.

[0008] Preferably, the telescopic structure includes a fixing plate. One end of the fixing plate is connected to the second frame, and the other end of the fixing plate is hinged to the bottom end of the telescopic cylinder. A connecting plate is arranged at the bottom middle of the large arm of the connecting piece, and the cylinder rod of the telescopic cylinder is hinged to the connecting plate.

[0009] Preferably, one end of the large arm of the connecting piece is rotatably connected to the second frame, and the other end of the large arm of the connecting piece is arranged in a suspended manner.

[0010] Preferably, the cutter structure includes a breaking cutter which is arranged at the bottom of the first triangular plate. The first triangular plate is rotatably connected to the other end of the large arm of the connecting piece. The top end of the first triangular plate is hinged to the cylinder rod of the cutter cylinder, and the bottom end of the cutter cylinder is hinged to the first fixing piece which is arranged on the large arm of the connecting piece.

[0011] Preferably, the pressure roller structure includes a driven pressure roller which is rotatably arranged at the bottom end of the second triangular plate. The second triangular plate is rotatably connected to the large arm of the connecting piece. The top end of the second triangular plate is hinged to the cylinder rod of the pressure roller cylinder, and the bottom end of the pressure roller cylinder is hinged to the second fixing piece which is arranged on the large arm of the connecting piece.

[0012] Therefore, the TAC pre-treatment unwinding automatic connecting piece device adopting the above structure in the present invention has a simple overall structure and is convenient to operate. By means of the cooperation of the two unwinding driving rollers and the rotating frame, the transposition of the unwinding driving rollers can be realized. The pressure roller on the large arm of the connecting piece automatically extends to press the TAC coil material, and the breaking cutter automatically extends to cut the TAC coil material. Without manual operation, the connecting piece can be completed automatically, and the connecting piece is flat without burrs and the connecting piece speed is fast, greatly improving the connecting piece efficiency of the production line.

[0013] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the TAC pre-treatment unwinding automatic connecting piece device of the present invention;

[0015] Figure 2 It is a schematic structural diagram of the large arm of the connecting piece of an embodiment of the TAC pre-treatment unwinding automatic connecting piece device of the present invention.

[0016] Reference Signs

[0017] 1. Frame 1; 2. Frame 2; 3. Rotating frame; 4. Unwinding driving roller 1; 5. Unwinding driving roller 2; 6. Driven guide roller 1; 7. Driven guide roller 2; 8. Driven guide roller 3; 9. Driven guide roller 4; 10. Discharge roller; 11. Rotating seat; 12. Rotating shaft; 13. Connecting piece arm; 14. Telescopic cylinder; 15. Fixed plate; 16. Connecting plate; 17. Breaking cutter; 18. Triangular plate 1; 19. Fixed piece 1; 20. Cutter cylinder; 21. Pressing roller; 22. Triangular plate 2; 23. Fixed piece 2; 24. Pressing roller cylinder; 25. TAC coil material. Detailed implementation manners

[0018] In order to make the purpose, technical solutions and advantages of the disclosed embodiments of the present invention clearer, the following further describes the embodiments of the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout.

[0019] It should be noted that the terms "including" and "having", and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0020] Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "arrangement", "installation", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] Embodiment

[0024] As Figure 1 As shown, a TAC pre-treatment unwinding automatic splicing device according to the present invention includes a first frame 1 and a second frame 2. A rotating frame 3 is arranged on the first frame 1, and the rotating frame 3 is connected to the first frame 1 through a rotating structure. A first unwinding driving roller 4 and a second unwinding driving roller 5 are symmetrically arranged on the rotating frame 3. The first unwinding driving roller 4 and the second unwinding driving roller 5 are used for unwinding the TAC coil 25. The first unwinding driving roller 4 and the second unwinding driving roller 5 are rotatably connected to the first frame 1 and are respectively driven by motors arranged on the rotating frame 3. The first unwinding driving roller 4 and the second unwinding driving roller 5 rotate and unwind during rotation. Two first driven guide rollers 6 are also arranged on the first frame 1, and the two first driven guide rollers 6 are symmetrically arranged. Both of the two first driven guide rollers 6 are rotatably connected to the first frame 1.

[0025] The rotating structure includes a rotating seat 11. The rotating seat 11 is arranged at the top of the first frame 1 and is fixed by bolts. The center of the rotating frame 3 is rotatably connected to the rotating seat 11 through a rotating shaft 12. The rotating shaft 12 is inserted into the rotating seat 11 and is rotatably connected to the rotating seat 11. The rotating shaft 12 is integrally arranged with the rotating frame 3. The rotating shaft 12 is connected to the output shaft of the motor. The motor is fixedly connected to the first frame 1 through a mounting seat. The output shaft of the motor drives the rotating shaft 12 to rotate, thereby driving the rotating frame 3 to flip on the first frame 1.

[0026] A second driven guide roller 7, a third driven guide roller 8, and a fourth driven guide roller 9 for guiding the conveyance of the TAC coil 25 are arranged on the second frame 2. An outlet roller 10 for conveying the TAC coil 25 to the next processing step is arranged on the second frame 2. The second driven guide roller 7, the third driven guide roller 8, the fourth driven guide roller 9, and the outlet roller 10 are all rotatably connected to the second frame 2. The TAC coil 25 is unwound and output from the first unwinding driving roller 4 or the second unwinding driving roller 5, and sequentially passes through the first driven guide roller 6, the second driven guide roller 7, the third driven guide roller 8, and the fourth driven guide roller 9 and is conveyed from the outlet roller 10 to the next process.

[0027] On the second rack 2, there is a connecting piece large arm 13 with a rotating function. One end of the connecting piece large arm 13 is rotatably connected to the second rack 2, and the other end of the connecting piece large arm 13 is suspended. The connecting piece large arm 13 is connected to the second rack 2 through a telescopic structure. The telescopic structure includes a fixed plate 15. One end of the fixed plate 15 is fixedly connected to the second rack 2 by bolts, and the other end of the fixed plate 15 is hingedly connected to the bottom end of the telescopic cylinder 14. A connecting plate 16 is provided at the bottom end of the middle part of the connecting piece large arm 13, and the cylinder rod of the telescopic cylinder 14 is hinged to the connecting plate 16. The telescopic movement of the cylinder rod of the telescopic cylinder 14 drives the connecting piece large arm 13 to rotate upward or downward around one end, thereby lifting or lowering the connecting piece large arm 13.

[0028] As Figure 2 shown, a cutting knife structure and a pressure roller structure with an extending function are provided on the connecting piece large arm 13. The cutting knife structure includes a breaking cutting knife 17, and the breaking cutting knife 17 is arranged at the bottom of the first triangular plate 18. The first triangular plate 18 is rotatably connected to the other end of the connecting piece large arm 13, and the top end of the first triangular plate 18 is hinged to the cylinder rod of the cutting knife cylinder 20. The bottom end of the cutting knife cylinder 20 is hinged to the first fixing piece 19, and the first fixing piece 19 is arranged on the connecting piece large arm 13. The pressure roller structure includes a driven pressure roller 21, and the driven pressure roller 21 is rotatably arranged at the bottom end of the second triangular plate 22. The second triangular plate 22 is rotatably connected to the connecting piece large arm 13, the top end of the second triangular plate 22 is hinged to the cylinder rod of the pressure roller cylinder 24, and the bottom end of the pressure roller cylinder 24 is hinged to the second fixing piece 23, and the second fixing piece 23 is arranged on the connecting piece large arm 13.

[0029] The pressure roller cylinder 24 and the second triangular plate 22 of the pressure roller structure and the cutting knife cylinder 20 and the first triangular plate 18 of the cutting knife structure are arranged in a staggered manner on the connecting piece large arm 13 and do not affect each other during operation. When the cylinder rod of the cutting knife cylinder 20 extends, it can drive the first triangular plate 18 to rotate on the connecting piece large arm 13, and then drive the breaking cutting knife 17 to extend downward to cut the TAC coil 25. When the cylinder rod of the pressure roller cylinder 24 extends, it can drive the second triangular plate 22 to rotate on the connecting piece large arm 13, and then drive the pressure roller 21 to press down on the TAC coil 25.

[0030] This TAC pre-treatment unwinding and automatic sheet connecting device further includes a controller. The driving elements such as the motor of the rotating frame 3, the driving motors of the first unwinding driving roller 4 and the second unwinding driving roller 5, the telescopic cylinder 14, the cutting knife cylinder 20, and the pressure roller cylinder 24 are all electrically connected to the controller by existing structures.

[0031] During use, when the production line is running, the connecting piece large arm 13 is in the lifted state, and at the same time, the pressure roller 21 and the breaking cutting knife 17 are both in the retracted state. The first unwinding driving roller 4 is running for unwinding. When the TAC coil 25 on the first unwinding driving roller 4 is about to be unwound, under the control of the controller, the rotating frame 3 starts to rotate slowly counterclockwise.

[0032] A photoelectric switch is also installed on the large arm 13 of the splicing piece. When the TAC coil 25 on the second unwind driving roller 5 blocks the photoelectric switch installed on the large arm 13 of the splicing piece, the rotating frame 3 stops rotating. When the TAC coil 25 on the first unwind driving roller 4 is about to run out, the controller controls the pressing roller cylinder 24 to act, and the pressing roller 21 presses down to make the TAC coil 25 adhere to the tape position of the second unwind driving roller 5. The controller controls the cutter cylinder 20 to act, and the breaking cutter 17 presses down to break the TAC coil 25. At this time, the first unwind driving roller 4 stops rotating, and the second unwind driving roller 5 is in a rotating state. The breaking cutter 17, the pressing roller 21 and the large arm 13 of the splicing piece are retracted simultaneously to complete automatic splicing.

[0033] Therefore, the TAC pretreatment unwind automatic splicing device with the above structure is adopted in the present invention to solve the problems of low efficiency of manual splicing during TAC unwinding and uneven splicing affecting the quality of TAC.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An automatic splicing device for unwinding TAC pre-treatment, characterized in that: It includes a first frame and a second frame. A rotating frame is arranged on the first frame. The rotating frame is connected to the first frame through a rotating structure. On the rotating frame, a first unwinding driving roller and a second unwinding driving roller for unwinding TAC coils are symmetrically arranged. A large connecting arm with a rotating function is arranged on the second frame. The large connecting arm is connected to the second frame through a telescopic structure. A cutting knife structure with an extending function and a pressing roller structure are arranged on the large connecting arm. A first driven guide roller for guiding the conveyance of the TAC coil is arranged on the first frame. A second driven guide roller, a third driven guide roller, and a fourth driven guide roller for guiding the conveyance of the TAC coil are arranged on the second frame. An outlet roller for conveying the TAC coil to the next processing step is arranged on the second frame.

2. The TAC pre-treatment unwind automatic splicing device according to claim 1, characterized in that: The rotating structure includes a rotating seat. The rotating seat is arranged at the top of the first frame. The center of the rotating frame is rotatably connected to the rotating seat through a rotating shaft. The rotating shaft is connected to the output shaft of the motor.

3. The TAC preprocessing unwinding automatic splicing device according to claim 1, characterized in that: The first unwinding driving roller, the second unwinding driving roller, and the first driven guide roller are all rotatably connected to the first frame. The second driven guide roller, the third driven guide roller, the fourth driven guide roller, and the outlet roller are all rotatably connected to the second frame.

4. The TAC preprocessing unwind automatic splicing device according to claim 1, characterized in that: The telescopic structure includes a fixed plate. One end of the fixed plate is connected to the second frame. The other end of the fixed plate is hinged to the bottom end of a telescopic cylinder. A connecting plate is arranged at the bottom middle of the large connecting arm. The cylinder rod of the telescopic cylinder is hinged to the connecting plate.

5. The TAC pre-treatment unwind automatic splicing device according to claim 4, wherein: One end of the large connecting arm is rotatably connected to the second frame. The other end of the large connecting arm is set to be suspended.

6. The TAC pre-treatment unwind automatic splicing device according to claim 5, characterized in that: The cutting knife structure includes a breaking cutting knife. The breaking cutting knife is arranged at the bottom of a first triangular plate. The first triangular plate is rotatably connected to the other end of the large connecting arm. The top end of the first triangular plate is hinged to the cylinder rod of a cutting knife cylinder. The bottom end of the cutting knife cylinder is hinged to a first fixing piece. The first fixing piece is arranged on the large connecting arm.

7. The TAC preprocessing unwind automatic splicing device according to claim 6, characterized in that: The pressing roller structure includes a driven pressing roller. The driven pressing roller is rotatably arranged at the bottom end of a second triangular plate. The second triangular plate is rotatably connected to the large connecting arm. The top end of the second triangular plate is hinged to the cylinder rod of a pressing roller cylinder. The bottom end of the pressing roller cylinder is hinged to a second fixing piece. The second fixing piece is arranged on the large connecting arm.

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