Adhesive tape cutting device with adjustable blade distance

Abstract

The utility model belongs to the technical field of adhesive tape cutting, and particularly relates to an adhesive tape cutting device with the adjustable blade distance. Comprising a support, an input roller, a winding roller, an output roller, a cutting device, a hydraulic air cylinder and a driving motor. A driving motor is installed on the support, the power output end of the driving motor is connected with a material rolling roller and an output roller through a transmission belt, a conveying roller is installed on the support and located behind the material rolling roller and above the output roller, the two ends of the output roller are connected with the driving motor, and the cutting device comprises a connecting rod, a blade, a cushion block and a sliding rail. The connecting rod is provided with a cushion block, the blade is installed on the cushion block, and hydraulic cylinders are installed at the two ends of the connecting rod and connected to the inner wall of the support. The cutting device is used for cutting the adhesive tape to be stripped on the output roller, the position of the connecting rod on the sliding rail is adjusted through the driving air cylinder, meanwhile, the distance between the blade and the output roller is changed, and the cutting efficiency of the adhesive tape is improved.

Description

Adjustable blade distance tape cutting device Technical Field

[0001] This utility model belongs to the field of tape cutting technology, specifically relating to a tape cutting device with adjustable blade distance. Background Technology

[0002] Tape cutting devices are key equipment in tape processing, their function being to cut and separate continuous rolls of tape to predetermined dimensions. Traditional cutting devices mostly employ a fixed blade structure, adjusting the distance between the blade and the conveyor roller via mechanical transmission to accommodate the cutting needs of tapes of different thicknesses. However, such devices have significant shortcomings: firstly, blade position adjustment relies on manual operation or a simple screw mechanism, resulting in low adjustment accuracy and efficiency, making it difficult to meet the demands of high-speed continuous production; secondly, tension control during tape conveying is unstable, especially when the roll roller and output roller use a single drive source, easily leading to tape slack or overstretching due to poor speed synchronization, thus affecting cutting accuracy. Furthermore, in existing technologies, the installation method of the pressure roller is mostly a fixed structure, which cannot dynamically adjust the pressure force according to the tape characteristics, easily causing cutting deviation or burr problems.

[0003] Chinese Patent No. CN222294544U discloses a textile fabric cutting device, relating to the field of textile fabric processing. It includes a fixed frame, a processing platform, and a movable frame. The fixed frame has two sets of transmission rollers on both sides of its inner side, a baffle on one side of its inner top, and a cleaning roller at the bottom of the baffle. The processing platform is located inside the fixed frame, with two sets of protective pads on both sides of its top. The movable frame is located at the top of the fixed frame, with an adjustable cutting head at its bottom and two sets of electric telescopic rods at its top. This invention allows workers to easily adjust the cutting head or cutting angle according to different tape characteristics or processing requirements, ensuring that the fabric does not shift or misalign during cutting. It also allows the device to adapt to different tape processing effects and reduces the time required for manual head replacement, improving processing efficiency. However, the aforementioned device switches cutting angles or heads by rotating the adjustable cutting head, but the adjustment process relies on manual operation. While this reduces head replacement time, it lacks automated adjustment capabilities, limiting adjustment accuracy and efficiency. Therefore, it is imperative for those skilled in the art to solve the aforementioned technical problems. Summary of the Invention

[0004] The present invention aims to solve the problem of existing technology, which uses rotation to adjust the cutting head to switch the cutting angle or the blade. However, the adjustment process relies on manual operation. Although it reduces the time for changing the blade, it lacks the ability to automatically adjust, resulting in limited adjustment accuracy and efficiency.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] An adjustable blade distance tape cutting device for tape cutting and separation includes a support, input roller, roll roller, output roller, cutting device, hydraulic cylinder and drive motor;

[0007] The drive motor is mounted on the bracket, and the power output end of the drive motor is connected to the roll roller and the output roller via a transmission belt. The conveyor roller is mounted on the bracket and is located behind the roll roller.

[0008] A cutting device is installed above the output roller, and the two ends of the output roller are connected to the drive motor;

[0009] The cutting device includes a connecting rod, a blade, a pad, and a slide rail;

[0010] The connecting rod is mounted on the slide rail, which is also provided with positioning holes. The pad is mounted on the positioning holes by bolts. The hydraulic cylinders are installed at both ends of the connecting rod and are connected to the inner wall of the bracket.

[0011] By adopting the above technical solution, and by setting positioning holes on the slide rail and using bolts to install pads in these positioning holes, the position of the blade can be easily adjusted, thereby achieving precise cutting of tapes of different widths. This method not only improves cutting accuracy but also increases the equipment's flexibility in handling tapes of different sizes. The hydraulic cylinder connecting rods at both ends allow for adjustment of the pressure between the blade and the tape as needed, ensuring optimal cutting results under different cutting requirements. The structural design of the cutting device allows for quick and accurate adjustment of the blade position, which greatly simplifies the equipment's operation, reduces preparation time, and improves work efficiency. Because a hydraulic cylinder is used to control the blade's movement, sufficient cutting force can be ensured while reducing the risk of damage caused by mechanical impact, thus improving operational safety.

[0012] Furthermore, the bottom of the bracket is also provided with a positioning rod and a positioning frame, and the positioning frame is installed on the positioning rod;

[0013] The positioning rod is welded between the brackets, and the positioning frame is rotatably mounted on the positioning rod. Two hydraulic cylinders are provided at the bottom of the positioning frame, and the hydraulic cylinders are installed on the inner wall of the bracket.

[0014] By adopting the above technical solution, the positioning rod is welded between the supports, providing additional structural support for the entire device and increasing the stability and robustness of the equipment during operation. This helps reduce the impact of vibration or external impact on cutting accuracy. The positioning frame can be rotatably mounted on the positioning rod, meaning that the angle and position of the positioning frame can be flexibly adjusted according to actual needs. This design is particularly suitable for handling tapes of different shapes or sizes, improving the versatility and adaptability of the equipment. A hydraulic cylinder is installed at the bottom of the positioning frame, which not only provides more precise force control but also automatically adjusts the cutting pressure according to the thickness and hardness of the tape. This ensures efficient and consistent cutting results even when dealing with various tape materials. By installing the hydraulic cylinder on the inner wall of the support and combining it with the design of the positioning rod and positioning frame, the chance of external components being exposed is reduced, lowering the risk of accidental injury. This layout also helps protect critical components from external environmental factors, extending the service life of the equipment.

[0015] Furthermore, a total of three conveying rollers are provided, and the positioning frame is provided with an installation opening, in which the three conveying rollers are respectively installed.

[0016] By adopting the above technical solution, the three-transfer roller design provides more stable support and guidance as the material passes through, ensuring that the tape remains flat and wrinkle-free before entering the cutting area. This helps improve cutting accuracy and quality. By adjusting the position of the three transfer rollers, their relative positions can be flexibly adjusted according to different widths and types of tape, thus adapting to various processing needs. This flexibility is particularly important for handling tapes of various sizes and materials. Multiple transfer rollers can better distribute the tension during the feeding process, avoiding overstretching or slack caused by a single transfer point. This not only helps maintain tape consistency but also reduces cutting errors caused by uneven tension. The mounting opening design makes the installation and disassembly of the transfer rollers easier, facilitating daily maintenance and replacement of worn parts. At the same time, multiple transfer points distribute the workload, reducing the wear rate of individual transfer rollers and improving the overall service life of the equipment.

[0017] Furthermore, a pressing roller is also provided between the conveying roller and the winding roller, and the pressing roller is mounted on the positioning rod by a positioning frame.

[0018] By employing the above technical solution, the presence of the pressure roller helps maintain appropriate tension on the conveyor belt throughout its transport path. It prevents the belt from becoming too loose or too tight before entering the cutting area, thus ensuring a smooth and precise cutting process. By applying appropriate pressure, the pressure roller effectively reduces wrinkling and slippage of the belt, keeping it flat. This is crucial for improving the quality of the final product, especially in cutting tasks requiring high precision. The positioning frame allows the position of the pressure roller to be adjusted according to different belt types and thicknesses to achieve optimal working results. This adjustability enables the equipment to adapt to a wider range of processing needs, improving its versatility and market competitiveness. The pressure roller helps stabilize the belt speed, ensuring it enters the cutting area at a constant rate. This not only improves cutting efficiency but also reduces dimensional errors caused by speed variations, guaranteeing product consistency.

[0019] Furthermore, the positioning frame on which the pressure roller is mounted is connected to the hydraulic cylinder, and the hydraulic cylinder is mounted on the inner wall of the bracket.

[0020] By adopting the above technical solution, the hydraulic cylinder can precisely control the pressure applied to the conveyor belt by the clamping roller. This automatic adjustment function allows the system to automatically adjust the clamping force according to different conveyor belt types and thicknesses, ensuring optimal transmission performance. Through the hydraulic cylinder, the position and pressure of the clamping roller can be quickly adjusted according to actual needs. This not only improves the operational flexibility of the equipment but also allows it to quickly adapt to different types of processing tasks, increasing production efficiency. The cylinder-driven method has a fast response speed, enabling adjustment of the clamping force in a short time. This is particularly important for real-time monitoring and optimization of the production process, especially in high-speed production lines. The hydraulic cylinder, installed on the inner wall of the support frame, provides a stable support structure, reducing the impact of external factors (such as vibration) on the clamping force. This ensures stable performance during long-term operation and reduces the possibility of malfunctions.

[0021] Furthermore, the bracket is provided with slide rails on both sides, and sliders are also provided between the two ends of the connecting rod and the slide rails on both sides of the bracket. The sliders are connected to the piston rod of the hydraulic cylinder, and the hydraulic cylinder drives the blade on the connecting rod to move closer to or away from the output roller.

[0022] By adopting the above technical solution, the hydraulic system can provide very precise control, ensuring that the blade accurately approaches or moves away from the output roller. This is particularly important for applications requiring high-precision cutting operations, such as the processing of materials like tape and plastic film. The design of the slide rail and slider provides a smooth and stable movement path, which helps maintain the stability and straightness of the blade during the cutting process, resulting in higher-quality cutting edges and reducing burrs and irregular cuts. The hydraulic cylinder allows for quick and precise adjustment of the blade position, enabling the equipment to adapt to materials of different sizes and thicknesses, improving its versatility and adaptability, and simplifying adjustments when changing materials.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model achieves rapid adjustment of the blade position by setting positioning holes on the slide rail and using bolts to install the pad on it, thereby accurately adapting to the cutting needs of tapes of different widths. The hydraulic cylinder drives the blade on the connecting rod to move closer to or further away from the output roller, providing a stable and smooth movement path, ensuring high precision and straightness in the cutting process, effectively reducing burrs and irregular cuts, improving cutting quality, reducing preparation time, and significantly improving work efficiency.

[0025] 2. The multiple conveying rollers and pressure rollers used in this utility model equipment, along with their adjustable design, enable the system to flexibly handle tapes of various shapes and sizes, improving the equipment's ability to process different types of materials. In particular, the design of the three conveying rollers provides stable support and guidance during material transmission, ensuring that the tape enters the cutting area flat and wrinkle-free, which helps maintain cutting quality and consistency. The combined application of the pressure rollers and hydraulic cylinders can automatically adjust the pressure according to the type and thickness of the tape, further enhancing the equipment's versatility and market competitiveness.

[0026] 3. This utility model reduces the risk of damage caused by mechanical impact by using multiple hydraulic cylinders, increasing operational safety. The hydraulic cylinders are installed on the inner wall of the bracket, reducing the chance of external parts being exposed, lowering the risk of accidental injury, and protecting internal components from external environmental factors, thus extending the service life of the equipment. The welded positioning rods increase structural support, improving the stability of the equipment during operation, reducing the impact of vibration or external impact on cutting accuracy, ensuring stable performance during long-term operation, and reducing the possibility of failure. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 is a rear view of the device of this utility model;

[0029] Figure 3 is an enlarged schematic diagram of part A in Figure 1 of this utility model;

[0030] Figure 4 is a schematic diagram of the assembly of the cutting device and the output roller of this utility model.

[0031] Wherein: 1-bracket; 11-positioning rod; 12-positioning frame; 13-slider; 2-input roller; 3-winding roller; 4-output roller; 5-cutting device; 51-connecting rod; 52-blade; 53-pad; 54-slide rail; 6-hydraulic cylinder; 7-drive motor; 8-transfer roller; 81-installation opening; 9-pressure roller. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0033] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the protection scope of this utility model.

[0034] Referring to Figures 1, 2, and 3, it can be seen that in this utility model of an adjustable blade distance tape cutting device, the bracket 1 serves as the main support structure, bearing all other components. The drive motor 7 is fixed to the side of the bracket 1, and its power output end is connected to the shaft ends of the winding roller 3 and the output roller 4 via a transmission belt, driving the winding roller 3 and the output roller 4 to rotate synchronously. The winding roller 3 and the output roller 4 are installed parallel to each other at the front and rear ends of the bracket 1. The winding roller 3 is responsible for winding up the uncut tape, and the output roller 4 conveys the cut tape. The input roller 2 is located on the bracket 1 to guide the tape into the cutting device 5.

[0035] Three conveyor rollers 8 are installed behind the roll roller 3 and fixed by bearing seats on the bracket 1. They assist in the smooth transport of the conveyor belt and guide the belt into the device. The three conveyor rollers 8 are fixed by mounting openings 81 on the positioning frame 12. The positioning frame 12 is fitted onto the positioning rod 11 welded to the bottom of the bracket 1 and can rotate around the positioning rod 11 to adjust the conveying angle. The pressure roller 9 is located between the conveyor rollers 8 and the roll roller 3. It is installed on the positioning rod 11 by another set of positioning frames 12 and is driven up and down by the hydraulic cylinder 6 to adjust the conveying angle. The tape clamping force, the slide rails 54 are symmetrically installed on both sides of the bracket 1, the two ends of the connecting rod 51 are slidably connected to the slide rails 54 through the sliders 13, the blade 52 is fixed to the bottom of the connecting rod 51 by the pad 53, the pad 53 is locked to the positioning hole on the slide rail 54 by bolts to realize the horizontal position adjustment of the blade 52. Two hydraulic cylinders 6 are respectively fixed to the inner wall of the bracket 1, and the piston rod ends are connected to the sliders 13, driving the connecting rod 51 to move up and down along the slide rail 54, thereby adjusting the distance between the blade 52 and the output roller 4. The positioning rod 11 is horizontal. Welded to the bottom of bracket 1, serving as the installation reference for conveyor roller 8 and pressure roller 9, positioning frame 12 is fitted onto positioning rod 11 and can rotate around the rod. The angle is locked by bolts, allowing adjustment of the tilt of conveyor roller 8 and pressure roller 9. Positioning frame 12 of pressure roller 9 is connected to the piston rod of hydraulic cylinder 6. The distance between pressure roller 9 and winding roller 3 is adjusted by the extension and retraction of the cylinder, ensuring the tension of the conveyor belt. Drive motor 7 drives winding roller 3 and output roller 4 to rotate via transmission belt. The conveyor belt enters through conveyor roller 8 and is guided by conveyor roller 8 to... The tape is conveyed to the input roller 2 via the winding roller 3, and then to the output roller 3 via the input roller 2. The hydraulic cylinder 6 drives the pressure roller 9 to press down and eliminate tape slack. During cutting, the hydraulic cylinder 6 pushes the slider 13 to move along the slide rail 54, which moves the blade 52 closer to or further away from the output roller, thereby cutting the tape. At the same time, adjusting the distance of the blade 52 can also adapt to tapes of different thicknesses. The blade 52 completes the tape cutting above the output roller 4, and the cut tape is sent out by the output roller 4.

[0036] Working principle: The drive motor 7 synchronously drives the winding roller 3 and the output roller 4 to rotate via the transmission belt. The winding roller 3 winds up the uncut tape, and the output roller 4 conveys the cut finished tape. The tape is introduced into the device by the conveyor roller 8 and guided to the area of ​​the winding roller 3 by three conveyor rollers 8. The conveyor roller 8 adjusts its tilt angle through the positioning frame 12 and the positioning rod 11 to ensure a smooth transition of the tape. The hydraulic cylinder 6 drives the pressure roller 9 to press down. By adjusting the distance between the pressure roller 9 and the winding roller 3, the slack phenomenon in the tape transmission is eliminated, and constant tension is maintained. The positioning frame 12 of the pressure roller 9 can rotate around the positioning rod 11. Combined with the extension and retraction of the hydraulic cylinder 6, it can adapt to the needs of tapes of different materials or thicknesses in real time. The blade 52 is fixed to the bottom of the connecting rod 51 by the pad 53. The two ends of the connecting rod 51 are connected by sliding... Block 13 is slidably connected to the slide rails 54 on both sides of the bracket 1; the hydraulic cylinder 6 drives the slider 13 to move up and down along the slide rail 54, causing the blade 52 to move closer to or away from the output roller 4, so as to achieve precise adjustment of the cutting depth or blade spacing. When the tape is conveyed to the cutting area by the output roller 4, the blade 52 cuts vertically under the push of the hydraulic cylinder 6 to complete the tape cutting; after cutting, the tape is continuously fed out by the output roller 4. By adjusting the stroke of the hydraulic cylinder 6, the blade 52 can quickly adapt to tapes of different thicknesses, such as thin yarn and thick felt, to ensure that the cut is flat and without burrs. The positioning rod 11 and the positioning frame 12 serve as the installation reference for the conveyor roller 8 and the pressure roller 9 to ensure the parallelism and angle consistency of each roller shaft. The slide rail 54 and the slider 13 provide rigid guidance for the lifting and lowering of the blade 52 to avoid cutting deviation.

[0037] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A tape cutting device with adjustable blade distance for cutting and separating tape, characterized in that: The device includes a support (1), an input roller (2), a roll roller (3), an output roller (4), a cutting device (5), a hydraulic cylinder (6), and a drive motor (7). The drive motor (7) is mounted on the support (1). The power output end of the drive motor (7) is connected to the roll roller (3) and the output roller (4) via a transmission belt. A conveyor roller (8) is mounted on the support (1) and located behind the roll roller (3). The cutting device (5) is mounted above the output roller (4). The two ends of the output roller (4) are connected to the drive motor (7). The cutting device (5) includes a connecting rod (51), a blade (52), a pad (53), and a slide rail (54). The connecting rod (51) is mounted on the slide rail (54). The slide rail (54) is also provided with a positioning hole. The pad (53) is mounted on the positioning hole by bolts. The hydraulic cylinder (6) is mounted on both ends of the connecting rod (51). The hydraulic cylinder (6) is connected to the inner wall of the support (1).

2. The tape cutting device with adjustable blade distance according to claim 1, characterized in that: The bottom of the bracket (1) is also provided with a positioning rod (11) and a positioning frame (12). The positioning frame (12) is installed on the positioning rod (11). The positioning rod (11) is welded between the brackets (1). The positioning frame (12) is rotatably fitted on the positioning rod (11). The bottom of the positioning frame (12) is provided with two hydraulic cylinders (6). The hydraulic cylinders (6) are installed on the inner wall of the bracket (1).

3. The tape cutting device with adjustable blade distance according to claim 2, characterized in that: There are three conveying rollers (8) in total. The positioning frame (12) is provided with an installation opening (81). The three conveying rollers (8) are respectively installed in the installation opening (81).

4. The tape cutting device with adjustable blade distance according to claim 2, characterized in that: A pressing roller (9) is also provided between the conveying roller (8) and the winding roller (3), and the pressing roller (9) is mounted on the positioning rod (11) by a positioning frame (12).

5. The tape cutting device with adjustable blade distance according to claim 4, characterized in that: The positioning frame (12) on which the pressing roller (9) is mounted is connected to the hydraulic cylinder (6), which is mounted on the inner wall of the bracket (1).

6. The tape cutting device with adjustable blade distance according to claim 1, characterized in that: The bracket (1) is provided with slide rails (54) on both sides. The connecting rod (51) is also provided with sliders (13) between the two ends of the connecting rod (51) and the slide rails (54) on both sides of the bracket (1). The sliders (13) are connected to the piston rod of the hydraulic cylinder (6). The hydraulic cylinder (6) drives the blade (52) on the connecting rod (51) to move closer to or away from the output roller (4).

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