Automatic splicing device for TAC (triallyl cyanurate) pretreatment rolling

Abstract

The utility model discloses an automatic splicing device for TAC pretreatment rolling, which belongs to the technical field of TAC rolling and splicing, and comprises a rack, a rolling driving roller I and a rolling driving roller II with a rotary rolling function are arranged on the rack, a TAC coiled material is arranged on the rolling driving roller II in a rolling manner through a driven feeding roller, a driven roller I, a proximity roller mechanism and a driven roller II in sequence, and the TAC coiled material is arranged on the rolling driving roller II in a rolling manner. The approaching roller mechanism comprises a first approaching roller, the first approaching roller is connected with the rack through a lead screw telescopic assembly, the first approaching roller is connected with a second approaching roller through a telescopic assembly, a piece receiving arm is arranged on the rack, one end of the piece receiving arm is connected with a piece receiving telescopic element, the other end of the piece receiving arm is connected with a trowelling telescopic element, and the trowelling telescopic element is connected with a pressing roller and a fly cutter. The TAC pretreatment rolling automatic splicing device adopting the structure can solve the problems that the efficiency of TAC manual splicing is low, and the quality of TAC is affected due to the fact that the splicing position is irregular.

Description

Technical Field

[0001] The utility model relates to the technical field of TAC winding splicing, in particular to an automatic splicing device for TAC pre-treatment winding. Background Art

[0002] TAC (TriacetylCellulose), an important material in the production process of liquid crystal displays. It is mainly used to protect the LCD polarizer. The application history of esterified cellulose film exceeds one century. The raw material comes from wood cellulose, which is an extension of the paper industry. Currently, the main component of the protective film for LCD polarizers is TAC (TriacetylCellulose), and its composition is very complex, including plasticizers, co-solvents, wetting agents, lubricants, and ultraviolet absorbers, etc. TAC is processed into a film by solvent casting, and it is still one of the polymer materials with the highest light transmittance so far.

[0003] The TAC pre-treatment production line uses an artificial splicing method, which requires the entire line to stop to complete the splicing. The full-line stop reduces the production efficiency of the production line. There are wrinkles and unevenness at the splicing position, and several meters of TAC wrinkles during production operation seriously affect the quality of TAC. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic splicing device for TAC pre-treatment winding, which solves the problems of low efficiency of manual splicing of TAC and uneven splicing affecting the quality of TAC.

[0005] To achieve the above purpose, the utility model provides an automatic splicing device for TAC pre-treatment winding, which includes a frame. On the frame, there are a first winding driving roller and a second winding driving roller with a rotating winding function. The TAC coil is wound on the second winding driving roller through a driven feeding roller, a first driven roller, a proximity roller mechanism, and a second driven roller in sequence. The proximity roller mechanism includes a first proximity roller, which is connected to the frame through a screw telescopic component, and the first proximity roller is connected to a second proximity roller through a telescopic component. There is a splicing arm on the frame. One end of the splicing arm is connected with a splicing telescopic element, and the other end of the splicing arm is connected with a smoothing telescopic element. The smoothing telescopic element is connected with a pressure roller and a flying knife.

[0006] Preferably, the driven feeding roller, the first driven roller, and the second driven roller are all rotatably connected to the frame.

[0007] Preferably, the first proximity roller is rotatably arranged at one end of a moving frame. The telescopic component includes a telescopic frame, which is slidably connected to the moving frame. The second proximity roller is rotatably arranged on the telescopic frame. There is a proximity cylinder on the moving frame, and the cylinder rod of the proximity cylinder is connected to the telescopic frame.

[0008] Preferably, the first proximity roller is located on the side of the second proximity roller away from the first winding driving roller.

[0009] Preferably, the lead screw telescopic assembly includes a moving seat. The other end of the moving frame is connected to the moving seat, and the moving seat is connected to the frame through a lead screw structure.

[0010] Preferably, the tab telescopic element is a tab cylinder. The tab cylinder is arranged on the frame, and the cylinder rod of the tab cylinder is hinged to one end of the tab arm.

[0011] Preferably, one end of the tab arm is connected to one end of the rotating shaft, and the rotating shaft is rotatably arranged on the frame.

[0012] Preferably, the leveling telescopic element is a leveling cylinder, and the leveling cylinder is arranged on the rotating shaft.

[0013] Preferably, the cylinder rod of the leveling cylinder is connected to the mounting seat. A pressure roller cylinder is arranged on the mounting seat, the cylinder rod of the pressure roller cylinder is connected to the pressure roller, a tool holder is arranged on the mounting seat, a flying knife is arranged on the tool holder, and a leveling block is also arranged on the tool holder.

[0014] Therefore, the TAC pre-treatment winding automatic tabbing device of the present utility model adopts the above structure. The overall structure of the device is simple, and it occupies a small area. The tab cylinder drives the telescopic arm to move, and then drives the flying knife to press down to cut the TAC coil. During the process of the flying knife pressing down, the pressure roller cylinder drives the pressure roller to press down to hold the sheet, making the cutting of the TAC coil more stable; cooperating with the leveling cylinder to drive the leveling block to move left and right to level the TAC coil, it has the advantages of smooth tabbing without burrs and fast tabbing speed, thereby improving the tabbing efficiency of the production line.

[0015] Next, through the drawings and embodiments, the technical solutions of the present utility model will be further described in detail. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 It is a schematic diagram of the lead screw structure of an embodiment of the present utility model;

[0018] Figure 3 It is a schematic diagram of the leveling action of an embodiment of the present utility model.

[0019] Reference Signs

[0020] 1. Frame; 2. First winding drive roller; 3. Second winding drive roller; 4. TAC coil; 5. Driven feeding roller; 6. First driven roller; 7. Second driven roller; 8. First approaching roller; 9. Second approaching roller; 10. Tab stretching element; 11. Tab arm; 12. Smoothing cylinder; 13. Mounting seat; 14. Pressing roller; 15. Tool holder; 16. Flying knife; 17. Smoothing block; 18. Support frame; 19. Turning shaft; 20. Roller frame; 21. Telescopic frame; 22. Moving frame; 23. Approaching cylinder; 24. Lead screw structure; 25. Lead screw motor; 26. Lead screw; 27. Bearing seat; 28. Moving seat. Detailed implementation manner

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model more clear and understandable, the following further details the embodiments of the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present utility model, and are not used to limit the embodiments of the present utility model. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout.

[0022] 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.

[0023] 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.

[0024] In the description of the present utility model, 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 utility model product is usually placed during use. It is only for the convenience of describing the present utility model 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 utility model.

[0025] In the description of the present utility model, 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 utility model can be understood according to specific circumstances.

[0026] As Figure 1 shown, the TAC pre-treatment winding automatic splicing device of the present utility model includes a frame 1. On the frame 1, there are provided a winding driving roller one 2 and a winding driving roller two 3 with a rotating winding function. The TAC coil 4 is sequentially wound around the winding driving roller two 3 through a driven feeding roller 5, a driven roller one 6, a proximity roller mechanism, and a driven roller two 7. On the frame 1, there is provided a support frame 18. The winding driving roller one 2 and the winding driving roller two 3 are located at both ends of the support frame 18. In the middle of the support frame 18, there is provided a turning shaft 19. On the frame 1, there is provided a turning motor. The output shaft of the turning motor is connected to the turning shaft 19. The turning motor drives the turning shaft 19 to rotate, thereby driving the support frame 18 to rotate, so that the winding driving roller one 2 and the winding driving roller two 3 are turned over.

[0027] On the support frame 18, there are provided winding motors for driving the winding driving roller one 2 and the winding driving roller two 3 to rotate. There are two winding motors, and the output shafts of the two winding motors are respectively connected to the winding driving roller one 2 and the winding driving roller two 3. The output shafts of the winding motors drive the winding driving roller one 2 or the winding driving roller two 3 to rotate for winding the TAC coil 4.

[0028] The driven feeding roller 5, the driven roller one 6, and the driven roller two 7 are all rotatably connected to the frame 1. On the frame 1, there are provided a plurality of roller brackets 20. The two ends of the driven feeding roller 5, the driven roller one 6, and the driven roller two 7 are respectively rotatably connected to their respective roller brackets 20.

[0029] The proximity roller mechanism includes a proximity roller one 8. The proximity roller one 8 is connected to the frame 1 through a lead screw telescopic assembly. The proximity roller one 8 is connected to a proximity roller two 9 through a telescopic assembly. The proximity roller one 8 is rotatably arranged at one end of a moving frame 22. The telescopic assembly includes a telescopic frame 21. The telescopic frame 21 is slidably connected to the moving frame 22. The proximity roller two 9 is rotatably arranged on the telescopic frame 21. On the moving frame 22, there is provided a proximity cylinder 23. The cylinder rod of the proximity cylinder 23 is connected to the telescopic frame 21. On the moving frame 22, there is also provided an opening for the TAC coil 4 to pass through. The proximity roller one 8 is located on the side of the proximity roller two 9 away from the winding driving roller one 2. The lead screw telescopic assembly includes a moving seat 28. The other end of the moving frame 22 is connected to the moving seat 28. The moving seat 28 is connected to the frame 1 through a lead screw structure 24. As Figure 2As shown, the lead screw structure 24 adopts an existing structure. The lead screw structure 24 includes a lead screw motor 25 and a lead screw 26. One end of the lead screw 26 is connected to the output shaft of the lead screw motor 25, and the other end of the lead screw 26 is rotatably connected to the frame 1 through a bearing block 27. The lead screw motor 25 is fixed to the frame 1 through a mounting seat 13. The lead screw structure 24 can drive the approaching roller 1 8 and the approaching roller 2 9 to move within a large range. When not in use, the lead screw structure 24 drives the approaching roller 1 8 and the approaching roller 2 9 to retract into the frame 1 as a whole. The approaching cylinder 23 can drive the approaching roller 2 9 to expand and contract within a small range. The approaching roller 2 9 extends forward to approach the winding driving roller 1 2, and the TAC coil 4 passes around the approaching roller 2 9 for transmission, which can prevent the TAC coil 4 from running off during the winding and conveying process.

[0030] A connecting piece arm 11 is arranged on the frame 1. One end of the connecting piece arm 11 is connected with a connecting piece telescopic element 10, and the other end of the connecting piece arm 11 is connected with a smoothing telescopic element. The smoothing telescopic element is connected with a pressing roller 14 and a flying knife 16. The connecting piece telescopic element 10 is a connecting piece cylinder. The connecting piece cylinder is arranged on the frame 1, and the cylinder rod of the connecting piece cylinder is hinged to one end of the connecting piece arm 11. One end of the connecting piece arm 11 is fixedly connected with one end of a rotating shaft, and the rotating shaft is rotatably arranged on the frame 1. The smoothing telescopic element is a smoothing cylinder 12, and the smoothing cylinder 12 is fixedly arranged on the rotating shaft. The cylinder rod of the smoothing cylinder 12 is connected with the mounting seat 13. A pressing roller cylinder is arranged on the mounting seat 13, the cylinder rod of the pressing roller cylinder is connected with the pressing roller 14, a tool holder 15 is arranged on the mounting seat 13, the flying knife 16 is arranged on the tool holder 15, and a smoothing block 17 is also arranged on the tool holder 15.

[0031] The cylinder rod of the connecting piece cylinder drives the connecting piece arm 11 to move upward, thereby driving the rotating shaft to rotate, causing the smoothing cylinder 12 to rotate downward, and further driving the flying knife 16 to press down to cut the TAC coil 4. The smoothing cylinder 12 drives the mounting seat 13 to move, thereby driving the tool holder 15 to move. The movement of the tool holder 15 drives the smoothing block 17 to move left and right for smoothing. During the smoothing operation, the designed position and height of the flying knife 16 in this device will not cause damage to the winding driving roller.

[0032] This automatic TAC pre-treatment winding connecting piece device further includes a controller. All driving elements such as various cylinders and motors in this device are electrically connected to the controller by adopting existing structures.

[0033] As Figure 1 shown, when the production line is running, the connecting piece cylinder is in the retracted state, the connecting piece arm 11 is in the lifted position, and at the same time, the pressing roller 14, the smoothing cylinder 12, and the flying knife 16 are all in the retracted state. The winding driving roller 2 3 is running for winding. When the TAC coil 4 on the winding driving roller 2 3 is about to be wound up, under the control of the controller, the support frame 18 starts to slowly rotate clockwise through the rotating shaft; As Figure 2As shown, when the support frame 18 rotates to the position where the winding driving roller receives the film, the controller controls the operation of the film receiving cylinder to press down the film receiving arm 11, the winding speed of the TAC film 4 on the second winding driving roller 3 is reduced to zero, and the tension of the film path is maintained; the pressing roller 14 extends to press the TAC film 4, the flying knife 16 presses down to cut the TAC film 4, and the leveling cylinder 12 drives the leveling block 17 to move left and right to level the TAC film 4 onto the first winding driving roller 2, and the film receiving arm 11 is lifted to complete the shaft change and film receiving.

[0034] There are two driven rollers II 7, which are respectively located above and below the support frame 18. After the shaft change and film receiving are completed, the first winding driving roller 2 rotates to the position of the second winding driving roller 3, and the lower driven roller II 7 rotates to the upper position to complete the position exchange and continue to work. Except for the first winding driving roller 2 and the second winding driving roller 3, the rest of the rollers are rotatable driven rollers.

[0035] Therefore, the TAC pre-treatment winding automatic film receiving device with the above structure of the present utility model can solve the problems of low efficiency of manual film receiving of TAC and unevenness at the film receiving position affecting the quality of TAC.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model 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 utility model, 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 utility model.

Claims

1. An automatic splicing device for TAC pre-treatment winding, characterized in that: It includes a frame, on which a first winding driving roller and a second winding driving roller with a rotating winding function are arranged. The TAC coil is sequentially wound around the second winding driving roller through a driven feeding roller, a first driven roller, a proximity roller mechanism, and a second driven roller. The proximity roller mechanism includes a first proximity roller, which is connected to the frame through a screw telescopic assembly, and the first proximity roller is connected to a second proximity roller through a telescopic assembly. A splicing arm is arranged on the frame. One end of the splicing arm is connected with a splicing telescopic element, and the other end of the splicing arm is connected with a smoothing telescopic element. The smoothing telescopic element is connected with a pressure roller and a flying knife.

2. The TAC preprocessing rewinding automatic splicing device according to claim 1, wherein: The driven feeding roller, the first driven roller, and the second driven roller are all rotatably connected to the frame.

3. The TAC preprocessing rewinding automatic splicing device according to claim 1, characterized in that: The first proximity roller is rotatably arranged at one end of a moving frame. The telescopic assembly includes a telescopic frame, which is slidably connected to the moving frame. The second proximity roller is rotatably arranged on the telescopic frame. A proximity cylinder is arranged on the moving frame, and the cylinder rod of the proximity cylinder is connected to the telescopic frame.

4. The TAC preprocessing rewinding automatic splicing device according to claim 3, wherein: The first proximity roller is located on the side of the second proximity roller away from the first winding driving roller.

5. The TAC pre-treatment rewinding automatic splicing device according to claim 3, characterized in that: The screw telescopic assembly includes a moving seat. The other end of the moving frame is connected to the moving seat, and the moving seat is connected to the frame through a screw structure.

6. The TAC preprocessing rewinding automatic splicing device according to claim 1, characterized in that: The splicing telescopic element is a splicing cylinder, which is arranged on the frame, and the cylinder rod of the splicing cylinder is hinged to one end of the splicing arm.

7. The TAC preprocessing rewinding automatic splicing device according to claim 6, characterized in that: One end of the splicing arm is connected to one end of a rotating shaft, and the rotating shaft is rotatably arranged on the frame.

8. The TAC preprocessing rewinding automatic splicing device according to claim 7, characterized in that: The smoothing telescopic element is a smoothing cylinder, which is arranged on the rotating shaft.

9. The TAC pre-treatment rewinding automatic splicing device according to claim 8, characterized in that: The cylinder rod of the smoothing cylinder is connected to a mounting seat. A pressure roller cylinder is arranged on the mounting seat, and the cylinder rod of the pressure roller cylinder is connected to the pressure roller. A knife seat is arranged on the mounting seat, the flying knife is arranged on the knife seat, and a smoothing block is also arranged on the knife seat.

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