An automatic butt joint film connecting mechanism of adhesive tape follow-up type

Abstract

The application relates to a tape follow-up type automatic butt joint film connecting mechanism and belongs to the technical field of film connecting mechanisms. The mechanism comprises a mounting frame, an integrated frame slidably arranged on the mounting frame, a linear module arranged on the mounting frame in a lifting mode and used for driving the integrated frame to move along the width direction of a film material, and a lifting device arranged on the mounting frame and connected with the linear module. The integrated frame is sequentially provided with a tape disc placing device, a compression roller device and a tape shearing device. The application realizes a highly integrated follow-up design, improves the compactness of the structure, greatly simplifies the equipment layout and reduces the space occupation. In addition, since the path of the tape from unwinding to being used is greatly shortened and compressed in a movable integrated frame, the tape loses the possibility of long-distance suspension and drift in the conveying process, so that the sticking precision of the tape is improved.

Description

Technical Field

[0001] This application relates to the field of film splicing mechanisms, and more particularly to an automatic film splicing mechanism with tape follow-up. Background Technology

[0002] In the coating production field, automated splicing technology has become a key link in achieving continuous supply of roll materials. Chinese Patent CN121470248B discloses an automated splicing device for coating production. This device, through the setup of an operating platform, a cutting mechanism, an upper adhesive tape adsorption mechanism, a lower adhesive tape adsorption mechanism, and a station conversion mechanism, achieves fully automated operation of the entire process, including automatic positioning, pressing, cutting, and double-sided tape application of new and old film materials. This technical solution utilizes two tape unwinding mechanisms installed on one side of the frame to supply tape to the upper and lower adhesive tape adsorption mechanisms respectively. An independent linear module and clamp assembly transfer and adsorb the tape segments onto a movable adsorption tube, which then performs the application action, effectively improving splicing efficiency and operational safety.

[0003] However, the existing tape supply and application systems still have room for improvement: First, the tape storage, pulling out, cutting, and adsorption functions are completed collaboratively by multiple spatially separated workstations, resulting in a bulky overall structure that occupies a significant amount of equipment space. Second, there is a conveying gap between the tape pulling out, cutting, and adsorption / application processes, which can easily lead to positioning deviations during tape transfer, affecting application accuracy. Furthermore, the tape relies on a clamping assembly for feeding, and the adhesiveness of the clamped areas may be compromised, thus affecting the bonding strength between the tape and the film material. Summary of the Invention

[0004] To improve structural compactness and tape application accuracy, this application provides an automatic tape-following and film-attaching mechanism.

[0005] This application provides an automatic tape-following film splicing mechanism, which adopts the following technical solution: An automatic tape-following film splicing mechanism includes: Mounting rack; An integrated frame is slidably mounted on the mounting frame; A linear module is vertically mounted on the mounting frame and is used to drive the integrated frame to move along the width direction of the film material; A lifting device is mounted on the mounting frame and connected to the linear module; The integrated frame is equipped with a tape reel placement device, a pressure roller device, and a tape cutting device in sequence.

[0006] Optionally, the pressure roller device includes a swing arm, a swing drive, and a flattening roller. One end of the swing arm is rotatably connected to the integrated frame, and the flattening roller is rotatably disposed at the other end of the swing arm. The swing drive is disposed on the integrated frame and connected to the swing arm.

[0007] Optionally, the swing arm is provided with a tape head adsorption module, which is located between the tape reel placement device and the flattening roller.

[0008] Optionally, a tape guide roller is rotatably mounted on the swing arm, and the tape guide roller is located between the tape reel placement device and the tape head adsorption module.

[0009] Optionally, the tape cutting device includes a U-shaped shear, a transverse cylinder, and a cutting cylinder. The transverse cylinder is mounted on an integrated frame, and its output end is connected to the cutting cylinder to drive the cutting cylinder to move along the length of the film. The output end of the cutting cylinder is connected to one side of the U-shaped shear to drive the U-shaped shear to move obliquely up and down and to perform opening and closing actions.

[0010] Optionally, a limiting strip is provided on the upper side of the shearing cylinder, and a limiting block is provided on the lower end of the limiting strip facing the side of the U-shaped shear; when the U-shaped shear moves obliquely downward under the drive of the shearing cylinder, the side of it away from the shearing cylinder can abut against the limiting block, so as to force the U-shaped shear to change from oblique downward movement to closed movement.

[0011] Optionally, the limiting strip is slidably connected to the cylinder wall of the shearing cylinder along the moving direction of the U-shaped shear. The limiting strip is provided with a waist-shaped adjustment groove, the length direction of which is set along the moving direction of the U-shaped shear. The shearing cylinder is provided with a locking bolt, which passes through the waist-shaped adjustment groove and locks the limiting strip onto the shearing cylinder.

[0012] Optionally, the integrated frame is further provided with a repress driving component, and the output end of the repress driving component is provided with a repress mounting frame. The repress mounting frame is rotatably provided with a repress roller for repressing the tape after it has been pressed by the flat roller. The repress roller and the flat roller are spaced apart, so that the cutting position of the U-shaped shear during closed cutting is located between the repress roller and the flat roller.

[0013] Optionally, the tape reel placement device includes a placement wheel and a floating clamping assembly. The placement wheel is rotatably mounted on a swing arm, and the floating clamping assembly is disposed on the wheel surface of the placement wheel for clamping the tape reel placed on the placement wheel.

[0014] Optionally, the floating clamping assembly includes a plurality of floating clamping blocks arranged in a circle. The wheel surface of the placement wheel is provided with mounting grooves that correspond one-to-one with the floating clamping blocks. The floating clamping blocks are slidably disposed in the mounting grooves along the radial direction of the placement wheel. An elastic element is provided between the floating clamping block and the bottom wall of the mounting groove. A guide slope is provided at the end of the floating clamping block away from the integrated frame.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. By integrating the tape reel placement device, pressure roller device, and tape cutting device onto a sliding integrated frame, and driving the entire assembly to move along the width of the film material via a linear module, modularization and integration of tape supply, positioning, application, and cutting functions are achieved. Compared to the existing technology where tape storage, pulling, cutting, and application components are dispersed, this application achieves a highly integrated follow-up design, improving structural compactness, significantly simplifying equipment layout, and reducing space occupation. Furthermore, because the path of the tape from unwinding to use is drastically shortened and compressed within a movable integrated frame, the tape loses the possibility of long-distance suspension and drift during transport, thereby improving tape application accuracy.

[0016] 2. By integrating a tape head adsorption module onto the swing arm, the tape head can be directly adsorbed and fixed near the flattening roller where the pressing action will be performed after it is drawn from the tape reel placement device. This achieves seamless spatial connection between tape preparation and application. Before the application cycle begins, the tape head is pre-adsorbed and tensioned in a predetermined position, eliminating the uncertainty and time delay caused by the tape needing to be pulled from a distance to the application point in existing technologies, thus improving the reliability and response speed of the application initiation action.

[0017] 3. By using a limiting strip with a limiting block on the shearing cylinder, when a single shearing cylinder drives the U-shaped shear to move downwards for the second time, the physical obstruction of the limiting block converts the linear thrust of the shearing cylinder into a torque that forces the U-shaped shear to rotate around its hinge axis. This drives the upper and lower blades of the U-shaped shear to close, completing the shearing action. This achieves the sequential completion of the two actions of the overall downward positioning and closing shearing of the U-shaped shear using a single drive source. It realizes drive reuse, simplifies the structure, reduces costs and failure rates, and ensures the consistency of the logic of each shearing action. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automatic tape-following film splicing mechanism according to an embodiment of this application.

[0019] Figure 2 This is a structural diagram illustrating the connection relationship between the lifting device, the linear module, and the integrated frame in the embodiments of this application.

[0020] Figure 3 This is a schematic diagram illustrating the structure of the pressure roller device in the embodiments of this application.

[0021] Figure 4 This is a structural schematic diagram showing the tape reel placement device from the rear view in the embodiments of this application.

[0022] Figure 5 This is a radial cross-sectional view showing the placement of the wheel in an embodiment of this application.

[0023] Figure 6 This is a cross-sectional view illustrating the tape head adsorption module in the embodiments of this application.

[0024] Figure 7 This is a structural schematic diagram illustrating one perspective of the tape cutting device in the embodiments of this application.

[0025] Figure 8 This is a structural schematic diagram illustrating the tape cutting device in the embodiments of this application from another perspective.

[0026] Figure 9 This is an exploded view showing the connection relationship between the limit strip and the shear cylinder in the embodiments of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 2. Lifting device; 3. Linear module; 4. Integrated frame; 5. Tape reel placement device; 51. Placement wheel; 511. Mounting groove; 52. Floating clamping assembly; 521. Floating clamping block; 5211. Guide slope; 522. Elastic element; 53. Side guard; 6. Pressure roller device; 61. Swing arm; 611. Second connecting rod; 612. Tape guide roller; 613. Side support 62. Swing drive component; 621. First connecting rod; 63. Flattening roller; 7. Belt shearing device; 71. U-shaped shear; 72. Lateral movement cylinder; 73. Shearing cylinder; 731. Locking bolt; 74. Limiting strip; 741. Limiting stop block; 742. Waist-shaped adjusting groove; 8. Belt head adsorption module; 81. Vacuum adsorption plate; 82. Limiting plate; 9. Re-pressing drive component; 91. Re-pressing mounting frame; 92. Re-pressing roller. Detailed Implementation

[0028] The following combination Figures 1-9 This application will be described in further detail below. Example

[0029] This application discloses an automatic tape-following film splicing mechanism. (Refer to...) Figure 1 and Figure 2An automatic film splicing mechanism with tape follow-up includes a mounting frame 1 and a lifting device 2, a linear module 3, and an integrated frame 4 mounted on the mounting frame 1. The mounting frame 1 is slidably mounted on the frame of the film splicing equipment along the length of the film. The structure of the film splicing equipment is described in Chinese Patent No. CN121470248B, which discloses an automatic film splicing device for coating production. The lifting device 2 is mounted on the side wall of the mounting frame 1 and is a lifting cylinder. Its output end is connected to the linear module 3 to drive the linear module 3 to lift and lower. The linear module 3 is a linear slide module. Its fixed part is a slide rail connected to the output end of the lifting device 2, and its movable part is the slide body fixed to the integrated frame 4. The integrated frame 4 is sequentially provided with a tape reel placement device 5, a pressure roller device 6, and a tape cutting device 7.

[0030] Reference Figure 2 and Figure 3 The pressure roller device 6 includes a swing arm 61, a swing drive 62, and a flattening roller 63. One end of the swing arm 61 is rotatably connected to the integrated frame 4, and the flattening roller 63 is rotatably disposed at the other end of the swing arm 61. The swing drive 62 is rotatably mounted on the integrated frame 4 and connected to the swing arm 61. In this embodiment, the swing drive 62 is a cylinder, with a first connecting rod 621 fixed to its output end. A second connecting rod 611 is fixed to one side of the free end of the swing arm 61. The end of the first connecting rod 621 away from the swing drive 62 and the end of the second connecting rod 611 away from the swing arm 61 are connected by a hinge. During tape application, the swing drive 62 drives the swing arm 61 to swing, which in turn drives the flattening roller 63 to precisely press the tape head down to the starting point of the film seam, ensuring the accuracy of the subsequent tape application path.

[0031] Reference Figures 3-5The tape reel placement device 5 includes a placement wheel 51 and a floating clamping assembly 52. ​​A side bracket 613 is fixed to the side of the swing arm 61 near the integrated frame 4. The placement wheel 51 is rotatably mounted on the side wall of the side bracket 613 away from the integrated frame 4, and a stop 53 for axial limiting is fixed to the side of the placement wheel 51 near the integrated frame 4. The floating clamping assembly 52 is disposed on the wheel surface of the placement wheel 51 and is used to clamp the tape reel placed on the placement wheel 51. Specifically, the floating clamping assembly 52 includes a plurality of floating clamping blocks 521 arranged in a circle. The wheel surface of the placement wheel 51 is provided with mounting grooves 511 corresponding to the floating clamping blocks 521. The floating clamping blocks 521 are slidably disposed in the mounting grooves 511 along the radial direction of the placement wheel 51. An elastic element 522 is connected between the floating clamping block 521 and the bottom wall of the mounting groove 511. A guide slope 5211 is provided at the end of the floating clamping block 521 away from the integrated frame 4. In this embodiment, the elastic element 522 is a compression spring. During the tape preparation stage, the operator only needs to push the tape reel towards the placement wheel 51. The edge of the inner hole of the tape reel core slides along the guide slope 5211 of the floating clamping block 521, which automatically compresses the elastic element 522 and guides the clamping block to gradually retract into the mounting groove 511. Then, the clamped block automatically clamps, improving the tape roll changing efficiency. Moreover, the floating clamping assembly 52 can provide flexible clamping force through the elastic element 522, which can tolerate the slight ellipticity and tolerance of the tape reel core. Through multi-point uniform clamping, it ensures that the tape reel rotates synchronously with the placement wheel 51 during unwinding, eliminating the tension sudden change caused by clamping slippage, and providing a stable tape supply for subsequent smooth application.

[0032] Reference Figure 3 and Figure 6 A tape head adsorption module 8 is provided on the swing arm 61, located between the tape reel placement device 5 and the flattening roller 63. In this embodiment, the tape head adsorption module 8 includes a vacuum adsorption plate 81 fixed to the side wall of the swing arm 61 and two limiting plates 82 fixed to the lower ends of the vacuum adsorption plate 81. The two limiting plates 82 are located on both sides of the tape head to limit the tape head in the width direction. After the tape is drawn out from the tape reel placement device 5, its head can be directly adsorbed and fixed near the flattening roller 63, which is about to perform the pressing action, realizing a seamless connection between tape preparation and application in space. Before the tape application cycle begins, the tape head is pre-adsorbed and tensioned in a predetermined position, eliminating the uncertainty and time delay caused by the tape needing to be pulled from a distance to the application point in the prior art, and improving the reliability and response speed of the tape application start action.

[0033] Reference Figure 3 and Figure 6A tape guide roller 612 is rotatably mounted on the swing arm 61. The tape guide roller 612 is located between the tape reel placement device 5 and the tape head adsorption module 8. It can smoothly guide the tape from the tape reel placement device 5 to the tape head adsorption module 8, preventing the tape from folding or twisting due to slack in this section of the conveying path. This provides a guarantee for the reliability of the adsorption action and the quality of subsequent pressing.

[0034] Reference Figure 7 The tape cutting device 7 includes a U-shaped shear 71, a transverse cylinder 72, and a cutting cylinder 73. The transverse cylinder 72 is fixed on the integrated frame 4, and its output end is connected to the cutting cylinder 73. It is used to drive the cutting cylinder 73 to move along the length of the film to move the U-shaped shear 71 to the end of the tape after it has been pressed by the flattening roller 63, and to make the upper and lower blades of the U-shaped shear 71 straddle the upper and lower sides of the tape. The output end of the cutting cylinder 73 is fixedly connected to one side of the U-shaped shear 71, and is used to drive the U-shaped shear 71 to move obliquely up and down and to perform opening and closing actions.

[0035] Reference Figure 7 and Figure 8 A limit bar 74 is provided on the upper side of the shearing cylinder 73. The lower end of the limit bar 74 is integrally formed with a limit stop 741 on the side facing the U-shaped shear 71. When the U-shaped shear 71 moves obliquely downward under the drive of the shearing cylinder 73, the side of it away from the shearing cylinder 73 can abut against the limit stop 741, so as to force the U-shaped shear 71 to change from oblique downward movement to closed movement. By using a limiting strip 74 with a limiting block 741 on the shearing cylinder 73, when the single shearing cylinder 73 drives the U-shaped shear 71 to move downwards for the second time, the physical obstruction of the limiting block 741 can convert the linear thrust of the shearing cylinder 73 into a torque that forces the U-shaped shear 71 to rotate around its hinge axis, thereby driving the upper and lower blades of the U-shaped shear 71 to close and complete the shearing action. This achieves the sequential completion of the two actions of the overall downward positioning of the U-shaped shear 71 and the closing shearing of the U-shaped shear 71 with a single drive source, realizes the reuse of the drive, simplifies the structure, reduces costs and failure rate, and ensures the consistency of the logic of each shearing action.

[0036] Reference Figure 9To compensate for manufacturing tolerances and adapt to combinations of tapes or films of different thicknesses, a limiting strip 74 is slidably connected to the cylinder wall of the shearing cylinder 73 along the moving direction of the U-shaped shear 71. A waist-shaped adjusting groove 742 is provided on the limiting strip 74, with its length direction aligned with the moving direction of the U-shaped shear 71. A locking bolt 731 is threaded onto the shearing cylinder 73, passing through the waist-shaped adjusting groove 742 and locking the limiting strip 74 onto the shearing cylinder 73. By adjusting the limiting strip 74, the position of the limiting stop 741 can be precisely adjusted, ensuring that when the lower end of the U-shaped shear 71 abuts against the limiting stop 741, its structure is at a preset height reference. At this reference position, the transverse cylinder 72 is activated, driving the U-shaped shear 71 to move laterally to the tape. The upper and lower blades of the U-shaped shear 71 can then precisely straddle the upper and lower sides of the tape, preparing for the next closing cut.

[0037] Reference Figure 2 and Figure 7 A re-pressing drive component 9 is fixed to the side wall of the integrated frame 4. A re-pressing mounting frame 91 is fixed to the output end of the re-pressing drive component 9. A re-pressing roller 92 for re-pressing the tape after it has been pressed by the flattening roller 63 is rotatably mounted on the re-pressing mounting frame 91. The re-pressing roller 92 and the flattening roller 63 are spaced apart, so that the cutting position of the U-shaped shear 71 during the closed cutting is located between the re-pressing roller 92 and the flattening roller 63. In this way, the re-pressing roller 92 can perform secondary compaction on the end of the tape that has been applied and cut to eliminate the micro-warping that may be caused at the moment of cutting and ensure that the tape and film are firmly bonded.

[0038] The implementation principle of the tape-following automatic splicing mechanism in this application embodiment is as follows: During splicing preparation, a new roll of tape is placed in the tape reel placement device 5, and the tape head is guided under the flattening roller 63. The tape head adsorption module 8 is opened to adsorb and stabilize the new tape head, completing the preparation of the new tape roll.

[0039] After the new and old films are cut by the cutting mechanism, the splicing equipment positions them for splicing. The linear module 3 moves the integrated frame 4, which includes a tape reel placement device 5, a tape head adsorption module 8, a flattening roller 63, and a tape cutting device 7, to the precise starting position for tape application according to the required width. The lifting device 2 lowers, bringing the tape head on the integrated frame 4 closer to the seam. The flattening roller 63, driven by the oscillating drive 62, presses the adsorbed tape head onto the starting joint of the seam. Simultaneously, the re-pressure roller 92, driven by the re-pressure drive 9, lowers, preparing to re-pressure the tape that is about to be applied. At this point, the tape head adsorption module 8 closes, and the tape is released.

[0040] The linear module 3 drives the integrated frame 4 to travel one width along the seam direction of the film material, thus completing the full bonding of the new and old film seams. Subsequently, the tape cutting device 7 cuts the tape. Finally, the re-pressure roller 92 performs a re-pressure action to compact the last bit of tape, and the lifting device 2 raises the entire integrated frame 4 to complete the flat film bonding.

[0041] By integrating the tape reel placement device 5, pressure roller device 6, tape cutting device 7, and tape head adsorption module 8 onto a sliding integrated frame 4, and driving the entire assembly to move along the width of the film material by a linear module 3, modularization and integration of tape supply, positioning, application, and cutting functions are achieved. Compared to the existing technology where the functional components for tape storage, pulling out, cutting, and application are dispersed, this application achieves a highly integrated follow-up design, improving structural compactness, significantly simplifying equipment layout, reducing space occupation, and thus lowering the manufacturing cost of the mechanism.

[0042] Furthermore, since the path of the tape from unwinding to use is shortened to the extreme and compressed within a movable integrated frame 4, the tape loses the possibility of long-distance suspension and drifting during transport. This not only improves the application accuracy of the tape, but also eliminates the complex adsorption cavity structure used in the prior art for adsorbing and stabilizing long sections of tape, thereby simplifying the system configuration and reducing manufacturing and operation and maintenance costs.

[0043] Specifically, during the application process, by integrating the tape head adsorption module 8 on the swing arm 61, the head of the tape can be directly adsorbed and tensioned near the pressing roller 63, which is about to perform the pressing action, after the tape is drawn out from the tape reel placement device 5. This achieves seamless spatial connection between tape preparation and application, eliminating the uncertainty and time delay caused by the tape needing to be pulled from a distant workstation to the application point, and improving the reliability and response speed of the tape application start action.

[0044] Furthermore, the entire integrated frame 4 can be precisely positioned to the beginning and end positions of the tape application by the linear module 3 in one go, according to the preset film width. In contrast, existing technologies often require secondary positioning and calibration of the tape due to structural gaps in the tape pulling path. The one-time positioning mechanism of this application avoids the cumulative errors caused by secondary positioning, making the alignment of the tape and film seam more accurate, thereby ensuring the consistency and high reliability of the bonding quality.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tape-following automatic film splicing mechanism, characterized in that, include: Mounting bracket (1); integrated frame (4), slidably mounted on the mounting bracket (1); A linear module (3) is vertically mounted on the mounting frame (1) and is used to drive the integrated frame (4) to move along the width direction of the film material. A lifting device (2) is mounted on the mounting frame (1) and connected to the linear module (3); The integrated frame (4) is provided with a tape reel placement device (5), a pressure roller device (6), and a tape cutting device (7) in sequence. The tape cutting device (7) includes a U-shaped shear (71), a transverse cylinder (72), and a cutting cylinder (73). The transverse cylinder (72) is located on the integrated frame (4), and its output end is connected to the cutting cylinder (73) to drive the cutting cylinder (73) to move along the length of the film. The output end of the cutting cylinder (73) is connected to one side of the U-shaped shear (71) to drive the U-shaped shear (71) to move obliquely up and down and to perform opening and closing actions. The shearing cylinder (73) is provided with a limiting strip (74) on its upper side, and a limiting block (741) is provided on the side of the lower end of the limiting strip (74) facing the U-shaped shear (71); when the U-shaped shear (71) moves obliquely downward under the drive of the shearing cylinder (73), the side of it away from the shearing cylinder (73) can abut against the limiting block (741) to force the U-shaped shear (71) to change from oblique downward movement to closed movement; The limiting strip (74) is slidably connected to the cylinder wall of the shearing cylinder (73) along the moving direction of the U-shaped shear (71). The limiting strip (74) is provided with a waist-shaped adjustment groove (742). The length direction of the waist-shaped adjustment groove (742) is set along the moving direction of the U-shaped shear (71). The shearing cylinder (73) is provided with a locking bolt (731). The locking bolt (731) passes through the waist-shaped adjustment groove (742) and locks the limiting strip (74) onto the shearing cylinder (73). The integrated frame (4) is also provided with a repress driving component (9). The output end of the repress driving component (9) is provided with a repress mounting frame (91). The repress mounting frame (91) is rotatably provided with a repress roller (92) for repressing the tape after it has been pressed by the flat roller (63). The repress roller (92) and the flat roller (63) are spaced apart, so that the cutting position of the U-shaped shear (71) during the closed cutting is located between the repress roller (92) and the flat roller (63).

2. The tape-following automatic film splicing mechanism according to claim 1, characterized in that: The pressure roller device (6) includes a swing arm (61), a swing drive (62) and a flattening roller (63). One end of the swing arm (61) is rotatably connected to the integrated frame (4), and the flattening roller (63) is rotatably disposed at the other end of the swing arm (61). The swing drive (62) is disposed on the integrated frame (4) and connected to the swing arm (61).

3. The tape-following automatic film splicing mechanism according to claim 2, characterized in that: The swing arm (61) is provided with a tape head adsorption module (8), which is located between the tape reel placement device (5) and the flattening roller (63).

4. The tape-following automatic film splicing mechanism according to claim 3, characterized in that: A tape guide roller (612) is rotatably mounted on the swing arm (61), and the tape guide roller (612) is located between the tape reel placement device (5) and the tape head adsorption module (8).

5. The tape-following automatic film splicing mechanism according to claim 2, characterized in that: The tape reel placement device (5) includes a placement wheel (51) and a floating clamping assembly (52). The placement wheel (51) is rotatably mounted on a swing arm (61), and the floating clamping assembly (52) is mounted on the wheel surface of the placement wheel (51) for clamping the tape reel placed on the placement wheel (51).

6. The tape-following automatic film splicing mechanism according to claim 5, characterized in that: The floating clamping assembly (52) includes a plurality of floating clamping blocks (521) arranged in a circle. The wheel surface of the placement wheel (51) is provided with mounting grooves (511) that correspond one-to-one with the floating clamping blocks (521). The floating clamping blocks (521) are slidably disposed in the mounting grooves (511) along the radial direction of the placement wheel (51). An elastic element (522) is provided between the floating clamping block (521) and the bottom wall of the mounting groove (511). A guide slope (5211) is provided at the end of the floating clamping block (521) away from the integrated frame (4).

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