A cross-cut mechanism for optical film material

Abstract

The utility model discloses a kind of crosscutting mechanism for optical film material including drive assembly and crosscutting assembly combination constitute, drive assembly includes drive main body, drive base is set on drive main body, two groups of bearing seats are oppositely provided in drive main body bottom, drive screw rod is provided between two groups of bearing seats, ball nut seat is provided on drive screw rod, drive motor is provided at one end of drive screw rod to make it rotate, crosscutting assembly includes crosscutting main body, adjusting cylinder is provided in crosscutting main body cavity, two groups of adjusting tracks are oppositely provided in crosscutting main body cavity, adjusting slider is provided between two groups of adjusting tracks, clamping plate is provided on adjusting slider, two groups of cutters are oppositely provided between adjusting slider and clamping plate;The utility model passes through the crosscutting mechanism for optical film material, by drive assembly combination crosscutting assembly cooperation effect, can stably control crosscutting process displacement and cutter depth, guarantee optical film material crosscutting incision flat, undamaged.

Description

Technical Field

[0001] This utility model belongs to the technical field of optical film production equipment, and in particular relates to a cross-cutting mechanism for optical film materials. Background Technology

[0002] The optical film cross-cutting mechanism is a core functional component of the slitting machine. It is mainly used to precisely cut continuously produced optical film rolls laterally into film sheets of specific sizes to meet the processing requirements of downstream products such as displays, optical lenses, and photovoltaic modules. In the optical film production line, the cutting accuracy and operational stability of the cross-cutting mechanism directly determine the edge quality and dimensional consistency of the optical film products, and have a significant impact on the efficiency of subsequent processing steps and the performance of the final product.

[0003] Existing optical film cross-cutting mechanisms have certain shortcomings in actual operation. Specifically: Firstly, the drive and guide structure design of some cross-cutting mechanisms is not reasonable enough. During the movement of the drive base, slight shaking may occur due to excessive guide clearance or insufficient stability of the guide components, resulting in deviations in the cross-cutting position. This deviation is amplified, especially in high-speed cutting scenarios, affecting the dimensional accuracy of the optical film. Secondly, the cutting blade installation position of some cross-cutting mechanisms is fixed and lacks an adjustment structure. If the height position of the cutting blade is not good during operation, it is easy to cause burrs on the edge of the film material, which cannot meet the stringent requirements of high-precision optical films for cutting quality. Utility Model Content

[0004] The purpose of this invention is to provide a cross-cutting mechanism for optical film materials, which addresses the problems of unstable driving base movement, cross-cutting position deviation, and rough edges caused by the lack of adjustment structure for the fixed position of the cutter due to unreasonable driving and guiding structure in existing optical film cross-cutting mechanisms.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a transverse cutting mechanism for optical film materials, comprising a combination of a driving component and a transverse cutting component;

[0006] The drive assembly includes a drive body, a drive base fitted on the drive body, a guide wheel on the drive base that mates with the side wall of the drive body, two sets of bearing seats opposite each other at the bottom of the drive body, bearings mounted on the bearing seats, a drive threaded rod between the two sets of bearings, a ball nut seat on the drive threaded rod that mates with it, the ball nut seat being fixedly connected to the bottom of the drive base, and a drive motor for rotating the drive threaded rod being mounted at one end, the drive motor being fixed to the drive body.

[0007] The cross-cutting assembly includes a cross-cutting body fixed to the side wall of the drive base. An adjusting cylinder is provided in the cavity of the cross-cutting body. Two sets of adjusting rails are arranged opposite to each other in the cavity of the cross-cutting body. An adjusting slider is arranged between the two sets of adjusting rails. The adjusting slider is rotatably connected to the telescopic rod of the adjusting cylinder. A clamping plate is provided on the adjusting slider. Two sets of cutting blades are arranged opposite to each other between the adjusting slider and the clamping plate.

[0008] Furthermore, both ends of the drive body are provided with mounting base plates, and threaded holes are provided at the four corners of the mounting base plates.

[0009] Furthermore, a guide groove is provided on the side wall of the drive body, and the guide wheel is embedded in the guide groove.

[0010] Furthermore, the drive motor is a servo motor, and the output shaft of the servo motor is connected to the drive threaded rod via a flexible coupling.

[0011] Furthermore, the length of the adjusting track is greater than the driving stroke of the adjusting cylinder telescopic rod.

[0012] Furthermore, a silicone protective pad is provided on the side of the clamp plate near the cutter, and the thickness of the silicone protective pad is 2-5mm.

[0013] Beneficial effects: This utility model has a reasonable design, simple and stable structure, and strong practicality, and has the following beneficial effects:

[0014] 1. Improve drive movement stability and ensure cross-cutting position accuracy: In the drive assembly, the drive base cooperates with the side wall of the drive body through the guide wheel (especially the guide wheel is embedded in the guide groove), and at the same time, the bottom is fixed with the ball nut seat and cooperates with the drive threaded rod to form a double guide limit structure, which effectively avoids shaking when the drive base moves. Combined with the precise power transmission of the servo motor and the flexible coupling, the transmission deviation is further reduced. Even in high-speed cutting scenarios, the cross-cutting position can be ensured to improve the dimensional accuracy of the optical film.

[0015] 2. Enhance the flexibility of cutter adjustment and optimize the quality of membrane cutting: In the cross-cutting assembly, the adjusting cylinder drives the adjusting slider to move along the adjusting track through the telescopic rod, which can flexibly adjust the height position of the cutter. This solves the problem that traditional cutter installation and fixing is difficult to adapt to different processing needs. At the same time, it avoids the generation of rough edges when cutting the membrane material.

[0016] 3. Simplify the installation process and improve equipment adaptability: The mounting base plates at both ends of the drive body and the design of the four corner threaded holes allow the cross-cutting mechanism to be quickly bolted to the slitting machine without complicated installation and adjustment steps, reducing the difficulty of equipment assembly and adaptation costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the transverse cutting component of this utility model.

[0019] In the diagram: 1-Driver component, 2-Cross-cut component;

[0020] 101-Drive body, 102-Drive base, 103-Guide wheel, 104-Bearing seat, 105-Bearing, 106-Drive threaded rod, 107-Ball nut seat, 108-Drive motor, 109-Mounting base plate, 1010-Guide groove, 201-Cross-cutting body, 202-Adjusting cylinder, 203-Adjusting track, 204-Adjusting slider, 205-Clamping plate, 206-Cutter. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1:

[0023] Combination Figure 1-2 The cross-cutting mechanism for optical film materials shown consists of a drive assembly 1 and a cross-cutting assembly 2 working together to achieve efficient and precise cross-cutting of optical film materials through the precise cooperation of the two sets of components.

[0024] The drive assembly 1, serving as the core of the entire mechanism for power drive and displacement adjustment, includes a frame-structured drive body 101. A drive base 102, capable of translational movement along its length, is movably fitted around the drive body 101, forming a sliding fit. To ensure smooth movement of the drive base 102, several sets of guide wheels 103 are symmetrically installed on the inner wall of the drive base 102, conforming to the sidewall of the drive body 101. These guide wheels 103 use rolling friction instead of sliding friction, reducing resistance during relative movement and effectively limiting the direction of movement of the drive base 102, preventing lateral deviation. Two sets of bearing seats 104 are fixedly installed at both ends of the bottom of the drive body 101. Each bearing seat 104 has a bearing 105 mounted on it via an interference fit. The inner rings of bearing 105 together support a horizontally arranged drive threaded rod 106, enabling the drive threaded rod 106 to rotate stably under the constraint of bearing 105. A matching ball nut seat 107 is threadedly connected to the drive threaded rod 106. The top of the ball nut seat 107 is fixedly connected to the bottom of the drive base 102 by bolts, forming a linkage structure. When the drive threaded rod 106 rotates, the ball nut seat 107 will generate linear displacement along its axial direction, thereby driving the drive base 102 to move synchronously. In order to provide power to the drive threaded rod 106, one end of it is connected to the output shaft of the drive motor 108. The drive motor 108 is fixedly installed on the drive body 101 through the motor seat, and drives the drive threaded rod 106 to rotate forward and reverse by output torque, ultimately realizing the reciprocating translation adjustment of the drive base 102.

[0025] The cross-cutting assembly 2, as a functional component that directly performs the cutting action, has its cross-cutting body 201 fixedly mounted on the outer wall of the drive base 102. It can move with the drive base 102 to achieve lateral adjustment of the cutting position. The cross-cutting body 201 forms a closed cavity, within which an adjusting cylinder 202 is fixedly installed. The end of the telescopic rod of the adjusting cylinder 202 serves as the power output end and is rotatably connected to the adjusting slider 204. This connection method effectively compensates for installation errors and angular deviations during movement. On the two parallel sides of the cavity within the cross-cutting body 201, [the following is a list of components / mechanisms]. Two sets of highly precise guiding rails 203 are provided. The two sides of the adjusting slider 204 are respectively embedded in the two sets of adjusting rails 203 to form a sliding fit. When the telescopic rod of the adjusting cylinder 202 extends or retracts, it will drive the adjusting slider 204 to move linearly along the adjusting rails 203 perpendicular to the direction of movement of the driving base, thereby realizing the adjustment of the cutting depth. The bottom of the adjusting slider 204 is equipped with a clamping plate 205 through a detachable structure. Between the adjusting slider 204 and the clamping plate 205, two sets of cutters 206 are symmetrically arranged in opposite directions. The reverse arrangement structure design can realize bidirectional cutting.

[0026] In this embodiment, the two ends of the drive body 101 are fixedly connected to the mounting base plate 109 with a rectangular plate structure by welding. Its function is to accurately connect and install the entire cross-cutting mechanism with the frame of the external cutting machine. At the four corners of each mounting base plate 109, through threaded holes are opened according to the principle of symmetrical distribution. The diameter of these threaded holes matches the diameter of the preset mounting holes of the external cutting machine frame, and the internal thread specification of the threaded holes is consistent with the external thread specification of the mounting bolts, forming a threaded fit relationship.

[0027] In this embodiment, a guide groove 1010 with a concave cross-section is provided on the side wall of the drive body 101 along its length direction. The width of the guide groove 1010 is precisely matched with the diameter of the guide wheel 103. The rim of the guide wheel 103 is embedded in the guide groove 1010, which avoids friction and jamming caused by direct rigid contact between the two, and can also limit the guide wheel 103 laterally through the groove wall. When the drive base 102 moves along the drive body 101 under the drive of the drive threaded rod 106, the guide wheel 103 will roll synchronously with the drive base 102 in the guide groove 1010. At this time, the two side walls of the guide groove 1010 will limit the lateral displacement of the guide wheel 103, thereby constraining the movement direction of the drive base 102 and preventing it from lateral shaking due to uneven force or transmission deviation, making the translational movement of the drive base 102 more linear and stable.

[0028] In this embodiment, the drive motor 108 is a servo motor with high-precision speed and position control capabilities. In the power transmission link, the output shaft of the servo motor and the end of the drive threaded rod 106 are connected by a flexible coupling to form a detachable rigid connection. The core function of the flexible coupling is to compensate for the installation deviation and running deviation between the two shafts, while reducing vibration and noise during operation.

[0029] In this embodiment, the length of the adjusting track 203 is designed to be strictly greater than the maximum driving stroke of the telescopic rod of the adjusting cylinder 202. This dimensional fit provides a guarantee for the operation of the mechanism from both motion constraints and safety protection aspects. The core function of the adjusting track 203 is to provide linear motion guidance for the adjusting slider 204. The movement power of the adjusting slider 204 depends entirely on the extension and retraction of the telescopic rod of the adjusting cylinder 202. At this time, the length of the adjusting track 203 is greater than the driving stroke of the telescopic rod, which means that even if the telescopic rod of the adjusting cylinder 202 moves to the maximum extension or maximum retraction state, the two ends of the adjusting slider 204 can still maintain a certain safe distance from the end of the adjusting track 203, thus preventing the adjusting slider 204 from directly detaching.

[0030] In this embodiment, in the structure of the adjusting slider 204 and the clamping plate 205 of the cross-cutting component 2, a layer of silicone protective pad is provided on the side surface of the clamping plate 205 near the cutter 206. The silicone protective pad is made of high elastic silicone material, and its thickness is strictly controlled within a reasonable range of 2-5mm. The silicone protective pad can ensure the stable installation of the cutter 206 while avoiding damage caused by mechanical fixation.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cross-cutting mechanism for optical film materials, characterized in that: It consists of a combination of a drive component (1) and a cross-cutting component (2); The drive assembly (1) includes a drive body (101), a drive base (102) is sleeved on the drive body (101), a guide wheel (103) is provided on the drive base (102) to cooperate with the side wall of the drive body (101), two sets of bearing seats (104) are provided opposite to each other at the bottom of the drive body (101), bearings (105) are installed on the bearing seats (104), a drive threaded rod (106) is provided between the two sets of bearings (105), a ball nut seat (107) is provided on the drive threaded rod (106) to cooperate with it, the ball nut seat (107) is fixedly connected to the bottom of the drive base (102), and a drive motor (108) is provided at one end of the drive threaded rod (106) to rotate it, the drive motor (108) is fixed on the drive body (101); The cross-cutting assembly (2) includes a cross-cutting body (201) fixed to the side wall of the drive base (102). An adjusting cylinder (202) is provided in the cavity of the cross-cutting body (201). Two sets of adjusting rails (203) are arranged opposite to each other in the cavity of the cross-cutting body (201). An adjusting slider (204) is arranged between the two sets of adjusting rails (203). The adjusting slider (204) is rotatably connected to the telescopic rod of the adjusting cylinder (202). A clamping plate (205) is provided on the adjusting slider (204). Two sets of cutters (206) are arranged opposite to each other between the adjusting slider (204) and the clamping plate (205).

2. The cross-cutting mechanism for optical film materials according to claim 1, characterized in that: The driving body (101) is provided with mounting base plates (109) at both ends, and threaded holes are provided at the four corners of the mounting base plates (109).

3. The cross-cutting mechanism for optical film materials according to claim 2, characterized in that: The drive body (101) has a guide groove (1010) on its side wall, and the guide wheel (103) is embedded in the guide groove (1010).

4. A cross-cutting mechanism for optical film materials according to claim 3, characterized in that: The drive motor (108) is a servo motor, and the output shaft of the servo motor is connected to the drive threaded rod (106) via a flexible coupling.

5. A cross-cutting mechanism for optical film materials according to claim 4, characterized in that: The length of the adjusting track (203) is greater than the driving stroke of the telescopic rod of the adjusting cylinder (202).

6. A cross-cutting mechanism for optical film materials according to claim 5, characterized in that: A silicone protective pad is provided on the side of the clamping plate (205) near the cutter (206), and the thickness of the silicone protective pad is 2-5mm.

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