TOCA die cutting waste discharge station

Abstract

The invention discloses a TOCA die cutting waste discharging station, and relates to the technical field of display screens, the TOCA die cutting waste discharging station comprises a base, and further comprises a film supporting table used for positioning and supporting a film piece; the film cutting assembly has a first stroke and a second stroke; in the first stroke, the film cutting assembly cuts off slitter edges in the long edge direction of the film piece, and in the second stroke, the film cutting assembly cuts off slitter edges in the short edge direction of the film piece. According to the technical scheme, the stripping knife moves along the slitter edge, the slitter edge is stripped through the knife edge, the double-stroke design of the film cutting assembly is matched with the steering assembly, machining of long and short edges is achieved, the knife edge is automatically switched, it can be guaranteed that during multi-direction edge cutting, the included angle between the knife edge and a film piece is consistent, the 2mm slitter edge is accurately cut off, and the production efficiency is improved. The requirement for adaptation of the TOCA and the positioning jig is met, and stability and efficiency are remarkable.

Description

A TOCA die-cutting waste disposal station Technical Field

[0001] This invention relates to the field of display screen technology, specifically to a TOCA die-cutting waste disposal station. Background Technology

[0002] TOCA, as the core adhesive material for bonding CG and LCM, has specific requirements for its die-cut structure: there is a release film on both the top and bottom of the adhesive for subsequent bonding and positioning; the top film size is consistent with the adhesive layer; and the bottom film needs to have 2mm of waste edge removed.

[0003] The TOCA has a release film on both the top and bottom. The bottom film is used for product positioning. Since the TOCA needs to be placed in the positioning fixture at the bonding station, if the edges of the TOCA are the same size as the bottom release film, the sides will stick to the fixture and become unusable. Therefore, the middle layer of adhesive needs to be smaller than the bottom release film, about 2mm smaller on each side. The top film is the same size as the TOCA. So, after the TOCA is die-cut, the extra 2mm of waste material needs to be removed. Currently, this is mostly done manually by tearing the material along the edges of the TOCA to remove the waste. Because the thickness is thin and the width is narrow, it is easy to break the edges when tearing the material. Workers need to search for the edges multiple times, which is inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a TOCA die-cutting waste discharge station to address the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a TOCA die-cutting waste discharge station, comprising a base, and further comprising:

[0006] A film support platform is used for positioning and supporting the film.

[0007] The membrane cutting assembly has a first stroke and a second stroke; in the first stroke, the membrane cutting assembly removes waste edges along the long side of the membrane, and in the second stroke, the membrane cutting assembly removes waste edges along the short side of the membrane.

[0008] Preferably, the film support platform is fixedly installed on the top of the base, and the film to be cut is placed on the upper surface of the film support platform.

[0009] Preferably, the film cutting assembly includes a track frame, a movable seat, a slider, a peeling blade, a rotating shaft, and a switching unit. A pair of track frames are distributed on both sides of the film support platform. The movable seat can move back and forth along the length direction of the track frame under the drive of the drive unit. The slider is slidably connected to the upper part of the movable seat. One end of the rotating shaft is rotatably inserted into the slider. The peeling blade is fixed to the other end of the rotating shaft. At the end of the first and second strokes, the switching unit drives the rotating shaft to change the angle so that the blade of the peeling blade faces the direction of the film and ensures that the included angle between the peeling blade edge and the film remains consistent.

[0010] Preferably, the switching part includes a fixed block, a trigger, a positioning block, a positioning groove, an elastic element, pins, a gear, and a rack. The fixed block is fixedly installed at both ends of the track frame. The trigger is fixedly installed on the fixed block. A pair of pins are slidably inserted along the radial direction of the rotation axis. The elastic element exerts a thrust on the pins along their axial direction. The positioning block is fixedly installed on one side of the movable seat. A pair of positioning grooves are formed on the positioning block. The gear is fixedly installed on the outside of the rotation axis. The rack is installed on the movable seat. The gear and rack mesh.

[0011] Preferably, at the end of the first stroke, one of the pins is inserted into one of the positioning slots, and at the end of the second stroke, the other pin is inserted into the other positioning slot.

[0012] Preferably, the drive unit includes a lead screw and a motor, the motor being used to drive the lead screw to rotate, and the lead screw and the moving seat being threadedly connected.

[0013] Preferably, the system includes a steering assembly comprising a mounting base, linear guide rails, a support base, and a tension member. The mounting base is rotatably connected to the upper part of the base. A pair of linear guide rails are fixedly mounted on the mounting base. The support base is mounted on the linear guide rails. The track frame is fixedly mounted on the support base. The tension member applies a tension force to the support base in the direction of the base.

[0014] Preferably, a sliding column is fixedly mounted on one end of the mounting base, and the other end of the sliding column slides through the support base.

[0015] Preferably, it also includes a steering motor for driving the mounting base to rotate about the base.

[0016] Preferably, a roller is provided at the corner of the film support table, and the roller is rotatably connected to the track frame.

[0017] In the above technical solution, the TOCA die-cutting waste removal station provided by the present invention uses a peeling blade to move along the waste edge and peel off the waste edge with the blade. The peeling blade is coordinated with the worker and the film cutting assembly has a dual-stroke design. With the help of the steering assembly, it can process the long and short edges and automatically switch blades. It can ensure that the blade and the film are at the same angle when cutting edges in multiple directions, and accurately remove 2mm waste edge. It meets the compatibility requirements of TOCA and positioning fixture, and has significant stability and efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 is a schematic diagram of the overall structure of a TOCA die-cutting waste discharge station according to the present invention;

[0020] Figure 2 is an enlarged schematic diagram of point A in Figure 1 of the present invention, which is a TOCA die-cutting waste discharge station.

[0021] Figure 3 is a schematic diagram of the TOCA die-cutting waste discharge station of the present invention moving along the long side;

[0022] Figure 4 is an enlarged schematic diagram of section B in Figure 3 of the present invention, which is a TOCA die-cutting waste discharge station.

[0023] Figure 5 is a schematic diagram of the reversal of the stripping blade after the long side cutting is completed in a TOCA die-cutting waste discharge station according to the present invention.

[0024] Figure 6 is an enlarged schematic diagram of point C in Figure 5 of the present invention, which is a TOCA die-cutting waste discharge station.

[0025] Figure 7 is a schematic diagram of the TOCA die-cutting waste discharge station of the present invention when cutting along the short side;

[0026] Figure 8 is a schematic diagram of a steering component of a TOCA die-cutting waste discharge station according to the present invention;

[0027] Figure 9 is a schematic diagram of the switching part structure of the stripping blade of the TOCA die-cutting waste discharge station of the present invention when it moves along the long side.

[0028] Figure 10 is a schematic diagram of the switching part structure of the stripping blade of the TOCA die-cutting waste discharge station of the present invention when it moves along the short side.

[0029] Figure 11 is a schematic diagram of the membrane component of a TOCA die-cutting waste discharge station according to the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 2. Film support platform; 3. Film component; 4. Roller component; 5. Steering assembly; 6. Track frame; 7. Film cutting assembly; 9. Steering motor; 51. Mounting seat; 52. Linear guide rail; 53. Support seat; 54. Sliding column; 55. Tensioning component; 71. Moving seat; 72. Slider; 73. Peeling knife; 74. Rotating shaft; 741. Elastic component; 76. Triggering component; 77. Positioning block; 771. Positioning groove; 78. Pin; 79. Gear; 791. Rack; 81. Lead screw; 82. Motor; 85. Fixing block. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Please refer to Figures 1-11. An embodiment of the present invention provides a TOCA die-cutting waste discharge station to address the shortcomings of the prior art.

[0033] To achieve the above objectives, the present invention provides the following technical solution: a TOCA die-cutting waste discharge station, comprising a base 1, and further comprising:

[0034] The film support platform 2 is used for positioning and supporting the membrane 3;

[0035] The film cutting assembly 7 has a first stroke and a second stroke; in the first stroke, the film cutting assembly 7 removes waste edges along the long side of the film 3, and in the second stroke, the film cutting assembly 7 removes waste edges along the short side of the film 3.

[0036] In an embodiment of the present invention, a positioning and limiting structure is set on the upper part of the film support platform 2, which is respectively set along the long side and short side edge of the film support platform 2. When the film 3 is placed on the film support platform 2, the positioning and limiting structure positions the film 3 to prevent the film 3 from shifting due to force during the film cutting process, and ensures the dimensional accuracy of the 2mm waste edge removal.

[0037] The film cutting assembly 7 first moves along the first stroke to cut off the long side of the film 3. Then it rotates 90 degrees so that the film cutting assembly 7 corresponds to the short side of the film 3, as shown in Figure 7. Then it moves back to reset the film cutting assembly 7 to peel off the short side of the film 3.

[0038] By placing membrane element 3 once, the waste edges corresponding to the long and short sides are peeled off sequentially. The waste edge peeling has good continuity and improved peeling efficiency. It can accurately remove 2mm waste edges, meet the compatibility requirements of TOCA and positioning fixture, and has significant stability and efficiency.

[0039] In another embodiment of the present invention, the film support platform 2 is fixedly installed on the top of the base 1, and the film piece 3 to be cut is placed on the upper surface of the film support platform 2.

[0040] The base 1 has a rectangular base at the bottom, a cylindrical structure in the middle, and a fixed connection between the top and the center of the demolding table 2. In this way, the base 1 supports the demolding table 2.

[0041] In another embodiment of the present invention, the film cutting assembly 7 includes a track frame 6, a movable seat 71, a slider 72, a peeling blade 73, a rotating shaft 74, and a switching unit. A pair of track frames 6 are distributed on both sides of the film support platform 2. The movable seat 71 can move back and forth along the length direction of the track frame 6 under the drive of the driving unit. The slider 72 is slidably connected to the upper part of the movable seat 71. One end of the rotating shaft 74 is rotatably inserted into the slider 72. The peeling blade 73 is fixed to the other end of the rotating shaft 74. At the end of the first stroke and the second stroke, the switching unit drives the rotating shaft 74 to change the angle so that the blade of the peeling blade 73 faces the direction of the film 3 and ensures that the included angle between the blade edge of the peeling blade 73 and the film 3 remains consistent.

[0042] The pair of track frames 6 are symmetrical to each other, so the track frames 6 can simultaneously cover the long or short sides of both sides of the stripping table 2. During the process shown in Figure 4, the film cutting assembly 7 is in the first stroke. At this time, the film cutting assembly 7 is displaced along the long side of the film 3. When the moving seat 71 moves, the cutting edge of its peeling knife 73 moves along the gap between the waste edge and the intermediate layer. The waste edge is peeled off from the intermediate layer by the cutting edge. When it continues to move to the end of the first stroke, the switching unit drives the rotating shaft 74 to change the angle. Thus, during the second stroke, as shown in Figure 7, the film cutting assembly 7 rotates 90 degrees. At this time, the track frame 6 and the short side of the film 3 are parallel. When peeling off the waste edge of the short side, the movement of the moving seat 71 is a reset movement, so the direction is opposite. Therefore, it is necessary to adjust the direction of the cutting edge of the peeling knife 73. The switching unit passively adjusts the cutting edge so that it still faces the direction of the film 3 during the second stroke. This ensures smooth peeling of the waste edge and improves the stability during use.

[0043] According to Figures 4, 6, 9, and 10, the switching unit includes a fixing block 85, a trigger 76, a positioning block 77, a positioning groove 771, an elastic element 741, pins 78, a gear 79, and a rack 791. The fixing block 85 is fixedly installed at both ends of the track frame 6. The trigger 76 is fixedly installed on the fixing block 85. A pair of pins 78 are slidably inserted along the radial direction of the rotation shaft 74. The elastic element 741 exerts a thrust on the pins 78 along their axial direction. The positioning block 77 is fixedly installed on one side of the moving seat 71. A pair of positioning grooves 771 are both formed on the positioning block 77. The gear 79 is fixedly installed on the outside of the rotation shaft 74. The rack 791 is installed on the moving seat 71, and the gear 79 and rack 791 mesh. At the end of the first stroke, one pin 78 is inserted into one of the positioning grooves 771. At the end of the second stroke, the other pin 78 is inserted into the other positioning groove 771.

[0044] During the first stroke, the material is displaced along the long side of the membrane 3. The rotating shaft 74 is in its initial state as shown in Figure 4. At this time, the cutting edge 73 of the peeling knife faces the waste edge of the long side. Meanwhile, the elastic element 741 applies an axial thrust to one of the pins 78 to ensure that the pin 78 does not loosen. The lower part of the pin 78 is inserted into the corresponding positioning groove 771 of the positioning block 77, thus locking the angle of the rotating shaft 74. To prevent the angle from deflecting due to force during the cutting process, when the moving seat 71 moves along the track frame 6 to the end of the first stroke, the waste edge of the long side is peeled off. The moving seat 71 approaches the fixing block 85 at the end of the track frame 6, and the trigger element 76 on the fixing block 85 contacts the rotating shaft 74. The trigger element 76 presses the rotating shaft 74, thus locking the rotating shaft 74. 4. Relative displacement will occur between the displacement seats 71. When the rotating shaft 74 is displaced relative to the displacement seats 71, relative movement will occur between its gear 79 and rack 791. Under meshing action, the rack 791 drives the gear 79 to rotate. When the gear 79 rotates, it will inevitably drive the rotating shaft 74 to rotate. When the rotating shaft 74 rotates, since the positioning groove 771 is set to be arc-shaped, the pin 78 will move along the arc surface of the positioning groove 771 and be compressed into the rotating shaft 74 at the same time. This ensures that the rotating shaft 74 can rotate smoothly. As the rotating shaft 74 moves laterally and rotates synchronously, another pin 78 will automatically be inserted into another positioning groove 771 of the positioning block 77. At this time, the angle of the rotating shaft 74 can be relocked, and the cutting edge direction of the peeling knife 73 changes.

[0045] The entire film cutting assembly is rotated 90 degrees by the steering component 5 so that the short side of the track frame 6 and the film 3 are parallel, as shown in Figure 7. At this time, the cutting edge of the peeling knife 73 faces the short waste side, and the included angle between the cutting edge and the film 3 is completely consistent with the first stroke. The moving seat 71 moves in the reverse direction to reset, so as to peel off the short waste side.

[0046] During the movement of the displacement seat 71, the cutting edge adjustment of the peeling knife 73 is passively completed. Without manual intervention, it can adapt to the peeling of the long and short sides of the module, and improve efficiency while stabilizing the peeling of waste edges.

[0047] In this embodiment, after the peeling blade 73 is locked at an angle, the angle between the blade edge and the film can still be kept consistent through the slight compensation of the elastic element 741. Most existing structures are fixed-angle locking structures. In this structural design, the flatness requirement of the film is met. At the protrusion of the film 3, the thrust is transmitted to the peeling blade 73 through the waste edge, which drives the rotating shaft 74 to rotate slightly. The pin 78 compresses the elastic element 741, and the blade edge is slightly raised. This reduces the flatness tolerance requirement of the film 3 and reduces the rework rate caused by uneven placement.

[0048] In an embodiment of the present invention, the driving unit includes a lead screw 81 and a motor 82. The motor 82 is used to drive the lead screw 81 to rotate. The lead screw 81 and the moving seat 71 are threadedly connected.

[0049] The rotation of motor 82 can drive the lead screw 81 to rotate. When the lead screw 81 rotates, the moving seat 71 will be displaced along the axial direction of the lead screw 81 under the action of the thread force. In this way, the bidirectional movement of the moving seat 71 can be realized according to the forward and reverse rotation of motor 82.

[0050] In an embodiment of the present invention, please refer to FIG8, a steering assembly 5 is included. The steering assembly 5 includes a mounting base 51, linear guide rails 52, a support base 53, and a tension member 55. The mounting base 51 is rotatably connected to the upper part of the base 1. A pair of linear guide rails 52 are fixedly mounted on the mounting base 51. The support base 53 is mounted on the linear guide rails 52. The track frame 6 is fixedly mounted on the support base 53. The tension member 55 applies a tension force to the support base 53 in the direction of the base 1.

[0051] A sliding column 54 is fixedly installed at one end of the mounting base 51, and the other end of the sliding column 54 slides through the support base 53.

[0052] It also includes a steering motor 9, which drives the mounting base 51 to rotate around the base 1.

[0053] The film cutting component 7 can be switched from parallel long side to parallel short side by the steering component 5, ensuring that the track frame 6 is still precisely attached to the edge of the film support table 2 after rotating 90 degrees.

[0054] After the film cutting assembly 7 completes its first stroke, the moving seat 71 stops at the end of the track frame 6. The switching unit completes the pre-adjustment of the angle of the peeling blade 73. At this time, the steering motor 9 starts and drives the mounting seat 51 to rotate around the central cylinder of the base 1. In this way, the mounting seat 51 drives the linear guide rail 52, the support seat 53, and the track frame 6 to rotate 90 degrees synchronously. The sliding column 54 rotates with the mounting seat 51. At the same time, since the film removal table 2 is in a fixed state, it will apply a thrust to the track 6 so that the track frame 6 will move along the support seat 53 during the rotation. Simultaneously, the support seat 53 slides to unfold synchronously along the linear guide rail 52. In this way, the support seat 53 moves away from the base 1 along the linear guide rail 52. The tension member 55 is further stretched and reaches the maximum stretch at the corner of the sliding column 54 at the film removal table 2. As the rotation continues, the support seat 53 will retract under the tension of the tension member 5 until the short side of the track frame 6 and the film 3 are parallel (forming the state shown in Figure 7).

[0055] The tension member 55 has a stretching allowance, which can adapt to the dimensional deviations of different specifications of the film support platform 2. When dealing with different film parts 3, there is no need to readjust the relative position of the mounting base 51 and the film support platform 2. By using the stretching of the tension member 55, it can automatically adapt to the size of the demolding platform 2.

[0056] In an embodiment of the present invention, a roller 4 is provided at the corner of the film support platform 2, and the roller 4 and the track frame 6 are rotatably connected.

[0057] By setting the roller 4, when the track frame 6 rotates, the roller 4 rolls and connects with its side, avoiding friction between the track frame 6 and the demolding table 2. In this way, the track frame 6 rolls and contacts its side when it turns, extending the service life of both.

[0058] In another embodiment, the long and short sides of the film 3 are separated after die-cutting, forming the shape shown in Figure 11. Because the long and short sides are separated, this method of peeling avoids interference between the long and short sides.

[0059] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A TOCA die-cutting waste discharge station, comprising a base (1), characterized in that, Also includes: A film support platform (2) is used for positioning and supporting the membrane (3); a film cutting assembly (7) has a first stroke and a second stroke; in the first stroke, the film cutting assembly (7) cuts off the waste edge along the long side of the membrane (3), and in the second stroke, the film cutting assembly (7) cuts off the waste edge along the short side of the membrane (3).

2. The TOCA die-cutting waste discharge station according to claim 1, characterized in that, The film support platform (2) is fixedly installed on the top of the base (1), and the film piece (3) to be cut is placed on the upper surface of the film support platform (2).

3. The TOCA die-cutting waste discharge station according to claim 1, characterized in that, The film cutting assembly (7) includes a track frame (6), a movable seat (71), a slider (72), a peeling knife (73), a rotating shaft (74), and a switching unit. A pair of track frames (6) are distributed on both sides of the film support platform (2). The movable seat (71) can move back and forth along the length direction of the track frame (6) under the drive of the driving unit. The slider (72) is slidably connected to the upper part of the movable seat (71). One end of the rotating shaft (74) is rotatably inserted into the slider (72). The peeling knife (73) is fixed to the other end of the rotating shaft (74). At the end of the first stroke and the second stroke, the switching unit will drive the rotating shaft (74) to change the angle so that the blade of the peeling knife (73) faces the direction of the film (3) and ensures that the included angle between the blade of the peeling knife (73) and the film (3) remains consistent.

4. A TOCA die-cutting waste discharge station according to claim 3, characterized in that, The switching unit includes a fixed block (85), a trigger (76), a positioning block (77), a positioning groove (771), an elastic element (741), a pin (78), a gear (79), and a rack (791). The fixed block (85) is fixedly installed at both ends of the track frame (6). The trigger (76) is fixedly installed on the fixed block (85). A pair of pins (78) are slidably inserted along the radial direction of the rotating shaft (74). The elastic element (741) exerts a thrust on the pins (78) along its axial direction. The positioning block (77) is fixedly installed on one side of the moving seat (71). A pair of positioning grooves (771) are both opened on the positioning block (77). The gear (79) is fixedly installed on the outside of the rotating shaft (74). The rack (791) is installed on the moving seat (71). The gear (79) and the rack (791) mesh.

5. A TOCA die-cutting waste discharge station according to claim 4, characterized in that, At the end of the first stroke, one of the pins (78) is inserted into one of the positioning slots (771), and at the end of the second stroke, the other pin (78) is inserted into the other positioning slot (771).

6. A TOCA die-cutting waste discharge station according to claim 3, characterized in that, The drive unit includes a lead screw (81) and a motor (82). The motor (82) is used to drive the lead screw (81) to rotate. The lead screw (81) and the moving seat (71) are threadedly connected.

7. A TOCA die-cutting waste discharge station according to claim 3, characterized in that, The system includes a steering assembly (5), which includes a mounting base (51), linear guide rails (52), a support base (53), and a tension member (55). The mounting base (51) is rotatably connected to the upper part of the base (1). A pair of linear guide rails (52) are fixedly mounted on the mounting base (51). The support base (53) is mounted on the linear guide rails (52). The track frame (6) is fixedly mounted on the support base (53). The tension member (55) applies a tension force to the support base (53) in the direction of the base (1).

8. A TOCA die-cutting waste discharge station according to claim 7, characterized in that, A sliding column (54) is fixedly installed at one end of the mounting base (51), and the other end of the sliding column (54) slides through the support base (53).

9. A TOCA die-cutting waste discharge station according to claim 7, characterized in that, It also includes a steering motor (9), which drives the mounting base 51 to rotate around the base 1.

10. A TOCA die-cutting waste discharge station according to claim 3, characterized in that, A roller (4) is provided at the corner of the film support platform (2), and the roller (4) and the track frame (6) are tumbling connected.

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