Tension adjusting device and adhesive tape production equipment

Abstract

The utility model discloses a kind of tension adjusting device and adhesive tape production equipment.In the tension adjusting device, the base plate of mounting bracket is provided with two waist-shaped holes parallel to each other, the waist-shaped hole extends along horizontal direction, and the waist-shaped hole includes opposite first end and second end;Two groups of tension detection components and two waist-shaped holes are one-to-one corresponding, one of the first end of waist-shaped hole is provided with a tension detection piece, the second end of the other waist-shaped hole is provided with another tension detection piece, the sliding block is slidably connected with the waist-shaped hole, and the sliding block is connected with the detection end of tension detection piece, the auxiliary roller is connected with the sliding block and perpendicular to base plate;Guiding component includes guide roller, and guide roller is vertically installed in base plate;Winding component includes motor and winding roller, and the output shaft of motor is drivingly connected with winding roller, and motor can control the rotating speed of winding roller;Tension detection piece and motor are communicatedly connected with controller.The device can automatically adjust the tension of adhesive tape in winding process to ensure the production quality of adhesive tape.

Description

Technical Field

[0001] This utility model relates to the field of tape production technology, and in particular to a tension adjustment device and tape production equipment. Background Technology

[0002] In the production process of adhesive tape, the tape moves continuously under the action of conveyor rollers until it is wound up at the take-up roller. Tension control is a crucial factor determining product quality and production efficiency during tape production. Currently, tape production equipment relies on mechanical springs, counterweights, or manual knobs to adjust tension, which cannot dynamically respond to real-time changes in tape tension. These problems directly lead to defects such as tape substrate breakage, wrinkles, and uneven thickness, severely impacting the quality of the produced tape. Utility Model Content

[0003] The main purpose of this invention is to provide a tension adjustment device and tape production equipment, which aims to solve the problem of low tape production quality during the tape production process.

[0004] To achieve the above objectives, this utility model proposes a tension adjustment device, including a mounting frame, a guide assembly, a winding assembly, a controller, and two sets of tension detection assemblies, wherein: The mounting bracket includes a substrate, which has two parallel oblong holes that extend horizontally and include a first end and a second end. The tension detection components and the waist-shaped holes are set in a one-to-one correspondence. The tension detection components include a tension detection element, a slider and an auxiliary roller. A tension detection element is installed at the first end of one waist-shaped hole and another tension detection element is installed at the second end of the other waist-shaped hole. The slider is slidably connected to the waist-shaped hole and is connected to the detection end of the tension detection element. One end of the auxiliary roller is connected to the slider and the auxiliary roller is perpendicular to the substrate. The guiding assembly includes a guide roller, which is vertically mounted on the substrate; The winding assembly includes a motor and a winding roller. The output shaft of the motor is connected to the winding roller, and the motor can control the rotational speed of the winding roller. Both the tensile testing device and the motor are connected to the controller via communication.

[0005] In one embodiment, the winding assembly further includes a drive pulley, a driven pulley, and a drive belt. The drive pulley is connected to the output shaft of the motor, the driven pulley is connected to the winding roller, and the drive belt is used to connect the drive pulley and the driven pulley.

[0006] In one embodiment, the tension detection element includes one of a tension sensor and a spring balance.

[0007] In one embodiment, the guiding assembly includes a plurality of guide rollers for adjusting the direction of movement of the tape.

[0008] In one embodiment, the guide roller includes a roller body and a limiting ring sleeved on the end of the roller body away from the substrate.

[0009] In one embodiment, the mounting bracket further includes a base plate and support bases. The base plate is horizontally arranged and vertically connected to the substrate. There are multiple support bases, which are arranged in an array and installed on the side of the base plate away from the substrate.

[0010] In one embodiment, the guide assembly further includes a tensioning element, which includes a roller frame and at least two tensioning rollers that are mounted parallel to each other in a vertical direction.

[0011] In one embodiment, the tension adjustment device further includes an introduction component, which includes a connecting frame, a connecting shaft, and an introduction roller. One end of the connecting frame is provided with a first positioning hole, and the substrate is provided with a second positioning hole. The connecting frame and the substrate are connected through the first positioning hole and the second positioning hole. The connecting shaft is perpendicular to the substrate and is mounted on the connecting frame, and the introduction roller is rotatably mounted on the connecting shaft.

[0012] In one embodiment, the substrate has a plurality of second positioning holes, and the first positioning hole is provided corresponding to any one of the second positioning holes.

[0013] This utility model also proposes a tape production equipment, including a tension adjustment device as described in any of the above embodiments.

[0014] According to the technical solution of this utility model, during the continuous winding of the tape onto the take-up roller, the substrate can move along the directions of the auxiliary roller, guide roller, and take-up roller. The substrate is wound around the auxiliary roller, allowing the two sets of opposing auxiliary rollers to move under the tension of the substrate. This causes the slider to apply tension to the tension detection component, enabling the tension detection component to indirectly detect the tension in the substrate. The tension detection component can send tension value information to the controller, which can control the rotational speed of the output shaft in the motor based on the tension value information to adjust the rotational speed of the take-up roller in real time. This allows for real-time control of the tension in the substrate, preventing defects such as breakage, wrinkles, and uneven thickness, ultimately improving the production quality of the tape. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of an embodiment of the tension adjustment device provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the front structure; Figure 3 for Figure 1 A schematic diagram of the front structure of the tension adjustment device when winding the tape; Figure 4 for Figure 1 A top-view structural diagram; Figure 5 for Figure 2 A schematic diagram of the structure on the back.

[0017] Explanation of icon numbers: 1. Mounting bracket; 11. Substrate; 111. Oval hole; 1111. First end; 1112. Second end; 12. Base plate; 13. Support base; 2. Tension detection assembly; 21. Tension detection component; 22. Auxiliary roller; 3. Guide assembly; 31. Guide roller; 311. Roller body; 312. Limiting ring; 32. Tensioning component; 321. Roller frame; 322. Tensioning roller; 4. Rewinding assembly; 41. Motor; 42. Rewinding roller; 43. Drive pulley; 44. Driven pulley; 45. Drive belt; 5. Introducing component; 51. Connecting frame; 52. Connecting shaft; 53. Introducing roller; 6. Adhesive tape; X represents the horizontal direction; Y represents the vertical direction.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] In the tape production process, the winding stage, as the final step, has the core function of winding the continuously moving tape into a standard roll according to preset parameters. During this process, the tension control system needs to maintain tension stability during the tape winding process, avoiding both loose winding due to insufficient tension and deformation of the substrate caused by excessive tension.

[0023] According to the applicant's observations and research, most current tape production equipment still uses traditional tension adjustment methods, mainly relying on the elasticity of mechanical springs, the weight of counterweights, or manual adjustment using knobs based on experience. When adjusting the tension of the tape using this method, the system cannot compensate in time when there is a sudden change in tension, causing the substrate to bear tensile force exceeding the material's limit, leading to breakage or wrinkling. If the tension is insufficient, the substrate will be loosely wound. Long-term uneven tension will also cause periodic fluctuations in tape thickness. These defects directly reduce the product qualification rate and increase raw material waste and rework costs.

[0024] In view of this, the present invention proposes a tension adjustment device to solve or at least alleviate the above-mentioned problems.

[0025] Please see Figures 1 to 5 In one embodiment of this utility model, the tension adjusting device includes a mounting frame 1, a guide assembly 3, a winding assembly 4, a controller, and two sets of tension detection assemblies 2. The mounting frame 1 includes a base plate 11, which has two parallel oblong holes 111. The oblong holes 111 are along the horizontal direction X (see [reference]). Figure 1 and Figure 2Extending in the direction indicated by the middle arrow X, the oblong hole 111 includes a first end 1111 and a second end 1112. The tension detection component 2 is configured in a one-to-one correspondence with the oblong hole 111. The tension detection component 2 includes a tension detection element 21, a slider, and an auxiliary roller 22. A tension detection element 21 is installed at the first end 1111 of one oblong hole 111, and another tension detection element 21 is installed at the second end 1112 of the other oblong hole 111. The slider is slidably connected to the oblong hole 111 and connected to the detection end of the tension detection element 21. One end of the auxiliary roller 22 is connected to the slider and is perpendicular to the substrate 11. The guide component 3 includes a guide roller 31, which is vertically mounted on the substrate 11. The winding component 4 includes a motor 41 and a winding roller 42. The output shaft of the motor 41 is connected to the winding roller 42 for transmission. The motor 41 can control the rotational speed of the winding roller 42. Both the tension detection element 21 and the motor 41 are communicatively connected to the controller.

[0026] Specifically, the tape 6 is sequentially wound around the auxiliary roller 22 and the guide roller 31, and finally the tape 6 is wound onto the take-up roller 42 and is wound up as the take-up roller 42 rotates. The oblong holes 111 are elongated holes, and the two oblong holes 111 are aligned along the vertical Y direction (see [reference]). Figure 1 and Figure 2 The direction indicated by the middle arrow Y) is spaced apart to provide sufficient turning space. The tension detection element 21 is bolted to the oblong hole 111 to facilitate maintenance of the tension detection element 21. The inner wall of the oblong hole 111 is provided with a groove or slide rail. The slider slides in cooperation with the groove or slide rail. When the slider is displaced relative to the tension detection element 21, the tension detection element 21 can detect the tension applied by the slider and generate tension value information. This tension value information can be sent to the controller for processing. The controller includes either a PLC or an industrial computer. It has a preset tension range. When the tension value exceeds the upper limit of the preset range, it indicates that the tension in the tape 6 is too high. The controller then controls the motor 41 to reduce the speed of its output shaft, thereby reducing the winding speed of the take-up roller 42. Conversely, when the tension value is below the lower limit of the preset range, it indicates that the tension in the tape 6 is too low. The controller then controls the motor 41 to increase the speed of its output shaft, thereby increasing the winding speed of the take-up roller 42. By adjusting the winding speed of the take-up roller 42 in real time, the tension of the tape 6 can be adjusted accordingly.

[0027] In this embodiment, the guide roller 31 is used to adjust the direction of the tape 6 and increase the friction between the tape 6 and the tension adjustment device, so as to prevent the tape 6 located between the auxiliary roller 22 and the take-up roller 42 from being unsupported, which is conducive to a more uniform tension distribution.

[0028] By adopting the technical solution of this embodiment, during the continuous winding of the tape 6 onto the take-up roller 42, the substrate can move along the directions of the auxiliary roller 22, the guide roller 31, and the take-up roller 42. The substrate is wound around the auxiliary roller 22, allowing the two sets of opposing auxiliary rollers 22 to move under the action of the substrate tension. This causes the slider to apply tension to the tension detection element 21, enabling the tension detection element 21 to indirectly detect the tension in the substrate. The tension detection element 21 can send tension value information to the controller, which can control the rotation speed of the output shaft in the motor 41 based on the tension value information to adjust the rotation speed of the take-up roller 42 in real time. This allows for real-time control of the tension in the substrate, preventing defects such as breakage, wrinkles, and uneven thickness in the substrate, ultimately improving the production quality of the tape 6.

[0029] In one embodiment of this utility model, please refer to Figure 1 , Figure 3 and Figure 5 The winding assembly 4 also includes a drive wheel 43, a driven wheel 44, and a transmission belt 45. The drive wheel 43 is connected to the output shaft of the motor 41, the driven wheel 44 is connected to the winding roller 42, and the transmission belt 45 connects the drive wheel 43 and the driven wheel 44. Taking the two opposite sides of the substrate 11 as the front and rear sides, the auxiliary roller 22, guide roller 31, and winding roller 42 are all located on the front side, while the drive wheel 43, driven wheel 44, and transmission belt 45 are all located on the rear side. This ensures that different areas of the substrate 11 are utilized effectively, improving the compactness of the tension adjustment device. In this embodiment, the output shaft of the motor 41 drives the drive wheel 43 to rotate synchronously, and the drive wheel 43 drives the driven wheel 44 to rotate via the transmission belt 45. The driven wheel 44 is coaxially arranged with the winding roller 42 and rotates synchronously. This arrangement achieves the purpose of using the motor 41 to drive the winding roller 42, and the transmission structure is simple, easy to maintain and replace.

[0030] In one embodiment of this utility model, the tension detection element 21 includes either a tension sensor or a spring balance. The tension sensor has advantages such as high accuracy and rapid response. The spring balance has a simple structure and low cost. In this embodiment, the tension detection element 21 is preferably a tension sensor.

[0031] In one embodiment of this utility model, please refer to Figure 1 and Figure 3The guiding assembly 3 includes multiple guide rollers 31, which are used to adjust the direction of movement of the conveyor belt 6. Multiple guide rollers 31 are arranged between the tension adjusting roller and the take-up roller 42 to create a stable and controllable conveying path for the conveyor belt 6. The guide rollers 31 can precisely guide the direction of the conveyor belt 6, effectively eliminating deviations, swaying, or wrinkles that may occur when entering the take-up zone from the tension zone, ensuring that the conveyor belt 6 is evenly wound on the take-up roller 42 in a flat and aligned manner. This not only significantly improves the take-up quality and yield, but also avoids stretching or breakage of the conveyor belt 6 caused by excessive local stress by maintaining a uniform distribution of tension in the conveyor belt 6. This ensures continuous, stable, and efficient operation of the entire system and extends the service life of the conveyor belt 6 and the equipment.

[0032] Further, please refer to Figure 1 This embodiment provides a structure for preventing the tape 6 from deviating. The guide roller 31 includes a roller body 311 and a limiting ring 312 sleeved on the end of the roller body 311 away from the substrate 11. When the tape 6 is wound around the roller body 311, the limiting ring 312 at the end of the roller body 311 acts as a physical stop, effectively blocking and correcting the lateral movement of the tape 6, preventing the tape 6 from slipping, deviating, or drifting when running or under uneven force. This not only ensures that the tape 6 is always stably transported along the preset path, but also reduces the efficiency loss caused by correction shutdowns.

[0033] In one embodiment of this utility model, please refer to Figure 1 and Figure 2 The mounting frame 1 also includes a base plate 12 and support seats 13. The base plate 12 is horizontally arranged and vertically connected to the substrate 11. Multiple support seats 13 are arranged in an array and installed on the side of the base plate 12 away from the substrate 11. This arrangement can evenly distribute the load in the substrate 11 through the support seats 13 and the base plate 12, forming a stable force-bearing system. In this embodiment, the support seats 13 are made of either rubber or polyurethane. The support seats 13 are in direct contact with the ground. By arranging multiple support seats 13 in an array, the force transmitted from the base plate 12 to the support seats can be distributed to the ground, thereby improving the overall stability of the tension adjustment device. In addition, the support seats 13 can also play a role in vibration isolation and damping.

[0034] In one embodiment of this utility model, please refer to Figure 1 and Figure 3The guide assembly 3 also includes a tensioning element 32, which comprises a roller frame 321 and at least two tensioning rollers 322 that are parallel to each other in the vertical direction Y and spaced apart. This arrangement creates a compact and efficient "S"-shaped tension buffer zone. When the tape 6 winds around these two tensioning rollers 322 in a serpentine path, the increased wrap angle and contact area of ​​the tape 6 significantly enhances the friction and controllability of the tension adjustment device on the tape 6. This effectively absorbs and balances tension fluctuations from the guide roller 31, ensuring a highly stable tension of the tape 6 entering the take-up roller 42, resulting in a tightly wound and neat roll of tape 6. Furthermore, this vertically spaced layout achieves a longer effective wrapping path with a smaller footprint, improving the stability of the take-up process and effectively preventing the tape 6 from slipping, deviating, or loosening, thus improving take-up quality and production reliability.

[0035] In one embodiment of this utility model, please refer to Figure 1 and Figure 3 The tension adjustment device also includes an inlet assembly 5, which includes a connecting frame 51, a connecting shaft 52, and an inlet roller 53. One end of the connecting frame 51 has a first positioning hole, and the substrate 11 has a second positioning hole. The connecting frame 51 and the substrate 11 are connected through the first and second positioning holes. The connecting shaft 52 is perpendicular to the substrate 11 and mounted on the connecting frame 51, and the inlet roller 53 is rotatably mounted on the connecting shaft 52. The tape 6 is guided by the inlet roller 53 to the auxiliary roller 22, and then moves from the auxiliary roller 22 to the guide roller 31, finally being wound onto the take-up roller 42 via the tension roller 322. The alignment of the first and second positioning holes ensures precise positioning and reliable installation of the connecting frame 51 on the substrate 11, thereby ensuring the accuracy of the inlet roller 53's position. When the tape 6 is first received by the inlet roller 53 and guided to the auxiliary roller 22, this structure provides a clear and controllable starting point for the tape 6 before it enters the complex transmission system, effectively preventing the tape 6 from loosening, shifting, or wearing at the entry point.

[0036] Furthermore, in one embodiment of this utility model, the substrate 11 is provided with a plurality of second positioning holes, and the first positioning hole is correspondingly provided with any of the second positioning holes. By connecting the first positioning hole with different corresponding second positioning holes, the position and angle of the connecting frame 51 can be changed. By aligning the first positioning hole of the connecting frame 51 with different second positioning holes on the substrate 11, the installation position and even the overall angle of the connecting frame 51 can be easily changed, thereby precisely adjusting the relative position of the guide roller 53 in space. This allows for targeted optimization of the initial guide angle of the tape 6 entering the tension adjustment device and preliminary adjustment of the tension state.

[0037] This utility model also proposes a tape production equipment, which includes a tension adjustment device. The specific structure of the tension adjustment device is as described in the above embodiments. Since this tape production equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0038] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A tension adjusting device, characterized in that, include: The mounting bracket includes a substrate, the substrate having two parallel oblong holes extending in a horizontal direction, the oblong holes having opposing first and second ends; Two sets of tension detection assemblies are provided, with each tension detection assembly corresponding to one of the oblong holes. Each tension detection assembly includes a tensile testing element, a slider, and an auxiliary roller. One tensile testing element is installed at the first end of one oblong hole, and another tensile testing element is installed at the second end of the other oblong hole. The slider is slidably connected to the oblong hole and is connected to the testing end of the tensile testing element. One end of the auxiliary roller is connected to the slider, and the auxiliary roller is perpendicular to the substrate. A guiding assembly includes a guide roller, the guide roller being vertically mounted on the substrate; A winding assembly includes a motor and a winding roller, wherein the output shaft of the motor is connected to the winding roller in a driving connection, and the motor is capable of controlling the rotational speed of the winding roller; The controller is connected in communication with both the tensile testing device and the motor.

2. The tension adjusting device as described in claim 1, characterized in that, The winding assembly also includes a drive pulley, a driven pulley, and a transmission belt. The drive pulley is connected to the output shaft of the motor, the driven pulley is connected to the winding roller, and the transmission belt is used to connect the drive pulley and the driven pulley.

3. The tension adjusting device as described in claim 1, characterized in that, The tensile testing device includes one of a tensile sensor and a spring balance.

4. The tension adjusting device as described in claim 1, characterized in that, The guiding assembly includes a plurality of guide rollers, which are used to adjust the direction of movement of the tape.

5. The tension adjusting device as described in claim 1, characterized in that, The guide roller includes a roller body and a limiting ring sleeved on the end of the roller body away from the substrate.

6. The tension adjusting device according to any one of claims 1 to 5, characterized in that, The mounting bracket also includes a base plate and support bases. The base plate is horizontally arranged and vertically connected to the substrate. There are multiple support bases, which are arranged in an array and installed on the side of the base plate away from the substrate.

7. The tension adjusting device as described in claim 6, characterized in that, The guiding assembly further includes a tensioning element, which includes a roller frame and at least two tensioning rollers that are installed parallel to each other in a vertical direction.

8. The tension adjusting device according to any one of claims 1 to 5, characterized in that, The tension adjustment device further includes an introduction component, which includes a connecting frame, a connecting shaft, and an introduction roller. One end of the connecting frame is provided with a first positioning hole, and the substrate is provided with a second positioning hole. The connecting frame and the substrate are connected through the first positioning hole and the second positioning hole. The connecting shaft is perpendicular to the substrate and is mounted on the connecting frame. The introduction roller is rotatably mounted on the connecting shaft.

9. The tension adjusting device as described in claim 8, characterized in that, The substrate has a plurality of second positioning holes, and the first positioning hole is provided corresponding to any one of the second positioning holes.

10. A tape production equipment, characterized in that, Includes the tension adjusting device as described in any one of claims 1 to 9.

Images