Tension adjusting device and vacuum coating device

Abstract

The utility model relates to tension adjusting technical field, concretely relates to a kind of tension adjusting device and vacuum coating device.The tension adjusting device, including transmission roller, tension roller and floating roller, floating roller is set between transmission roller and tension roller, product is successively wound in the surface of transmission roller, floating roller and tension roller, further include: horizontal drive assembly, horizontal drive assembly includes the guide structure and drive structure being set along horizontal direction, one end of guide structure is close to tension roller, the other end of guide structure is away from tension roller, floating roller is connected with guide structure, drive structure is connected with floating roller, drive structure is used to drive floating roller relative movement along the guide direction of guide structure, so that floating roller is close to or away from tension roller, floating roller is always parallel with transmission roller and tension roller when relative moving.By drive structure drive floating roller moves along the guide direction of guide structure, realizes the dynamic balance of tension.

Description

Technical Field

[0001] This utility model relates to the field of tension adjustment technology, specifically to a tension adjustment device and a vacuum coating device. Background Technology

[0002] Tension—the tensile force exerted on a material during its movement—is a crucial process parameter. A tension regulating device is a key piece of equipment used to automatically detect and control the tension of materials in real time during unwinding, rewinding, or intermediate transport of rolled materials. Its core objective is to maintain constant and precise tension, thereby ensuring the quality of the final product and the stability of the production process.

[0003] In existing technologies, tension control often adopts a rough adjustment scheme: one type relies on the operator's experience to make manual intervention and adjust the relevant mechanism parameters by observing the running status of the roll material; the other type uses passive mechanical structures such as mechanical friction plates and gravity levers to indirectly control the tension by using mechanical resistance or the tensile force generated by gravity. However, the above methods have problems such as low precision, poor stability, slow response and low degree of automation. Summary of the Invention

[0004] This invention provides a tension adjustment device and a vacuum coating device to solve the problems of low precision, poor stability, slow response and low degree of automation in existing tension control.

[0005] In a first aspect, a tension adjusting device includes a drive roller, a tension roller, and a floating roller, wherein the floating roller is disposed between the drive roller and the tension roller, and a product is sequentially wound around the surfaces of the drive roller, the floating roller, and the tension roller, and further includes: A horizontal drive assembly includes a guide structure and a drive structure arranged in a horizontal direction. One end of the guide structure is close to the tension roller, and the other end of the guide structure is away from the tension roller. A floating roller is connected to the guide structure, and the drive structure is connected to the floating roller. The drive structure is used to drive the floating roller to move relative to the guide structure along the guide direction, so that the floating roller moves closer to or away from the tension roller. The floating roller is always parallel to the drive roller and the tension roller during relative movement.

[0006] Beneficial effects: By driving the floating roller to move along the guiding direction of the guide structure through the driving structure, dynamic tension balance is achieved. The tension adjustment device in this embodiment has high precision, good stability, rapid response, and high degree of automation, effectively solving the problems of low precision, poor stability, slow response, and low degree of automation that exist in the prior art that relies on manual experience or passive mechanical structure adjustment.

[0007] In one alternative embodiment, the guide structure is a linear guide rail, and the floating roller has a slider that slides in cooperation with the linear guide rail.

[0008] Beneficial effects: Linear guides are characterized by high precision, high rigidity, and high wear resistance, which can ensure the stability and accuracy of the floating roller during movement, thereby improving the adjustment accuracy and stability of the entire tension adjustment device.

[0009] In one optional embodiment, the drive structure includes a driving pulley, a driven pulley, a synchronous belt, and a drive motor. The driving pulley and the driven pulley are respectively disposed at both ends of the drive structure. The synchronous belt is wound around the driving pulley and the driven pulley. The drive motor is connected to the driving pulley, and the floating roller is connected to the synchronous belt.

[0010] Beneficial effects: By employing a transmission method consisting of a driving pulley, a driven pulley, and a synchronous belt, the tension adjustment device in this embodiment has advantages such as smooth transmission, accurate transmission ratio, and low noise. It can precisely control the moving distance and speed of the floating roller, thereby achieving precise adjustment of the product tension.

[0011] In one alternative embodiment, the floating roller is provided with a clamp that clamps the synchronous belt.

[0012] Beneficial effects: The floating roller is connected to the synchronous belt via a clamp. The clamp enhances the connection strength between the floating roller and the synchronous belt, preventing slippage or loosening during transmission and ensuring that the floating roller can accurately follow the movement of the synchronous belt, further improving the accuracy and stability of tension adjustment.

[0013] In one optional embodiment, the horizontal drive assembly is provided at both ends of the floating roller, and bearing seats are provided at both ends of the floating roller. The bearing seats contain bearings connected to the ends of the floating roller, and the slider and the clamping plate are disposed in the bearing seats.

[0014] Beneficial effects: By installing horizontal drive components at both ends of the floating roller, the force on the floating roller is more even during movement, enabling it to better maintain parallelism with the drive roller and tension roller, further improving the accuracy and stability of tension adjustment. Simultaneously, the bearing housing reduces friction and wear on the floating roller during movement, extending the service life of the device.

[0015] In one alternative embodiment, the guide structure is provided with a limiting structure for limiting the floating roller.

[0016] Beneficial effects: The limiting structure can prevent the floating roller from exceeding the predetermined range during movement, thereby avoiding damage to the product or device itself.

[0017] In one optional embodiment, the limiting structure includes a first limiting sensor and a second limiting sensor, the first limiting sensor and the second limiting sensor being respectively disposed at a first position and a second position on the guide structure, the first position and the second position being spaced apart, and the first limiting sensor and the second limiting sensor being electrically connected to the drive structure.

[0018] Beneficial effects: By setting a first limit sensor and a second limit sensor, the movement range of the floating roller can be precisely limited, preventing the floating roller from exceeding the safe range during movement, avoiding damage to the product due to excessive or insufficient tension, and ensuring the safety and stability of the device operation.

[0019] In one alternative embodiment, the tension roller is provided with a tension sensor, which is electrically connected to the drive structure.

[0020] Beneficial effects: By setting up a tension sensor and electrically connecting it to the drive structure, the product tension can be adjusted in real time and accurately, ensuring that the tension is always kept within the set range, thereby further improving product quality and production stability.

[0021] In one optional embodiment, the system further includes a control system electrically connected to the drive structure, the control system being configured to control the drive structure to drive the floating roller to move upon receiving a drive signal.

[0022] Beneficial effects: The control system has intelligent control functions. It can pre-set the corresponding tension parameters according to the tension requirements of different products, and automatically adjust the position of the floating roller during the production process to achieve precise tension control. This greatly improves production efficiency and product quality, reduces manual intervention and operational errors, and further enhances the automation and reliability of the entire tension adjustment device.

[0023] Secondly, this utility model also provides a vacuum coating apparatus, including: the tension adjustment device described in any of the above-mentioned solutions.

[0024] Beneficial effects: Since the vacuum coating equipment includes a tension adjustment device, which has the same effect as the tension adjustment device, it will not be described in detail here. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a tension adjustment device according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of a tension adjustment device according to an embodiment of the present invention. Figure 2 .

[0027] Explanation of reference numerals in the attached figures: 1. Drive roller; 2. Tension roller; 3. Floating roller; 4. Guide structure; 5. Drive structure; 51. Driving pulley; 52. Driven pulley; 53. Synchronous belt; 54. Drive motor; 55. Motor bracket; 6. Slider; 7. Clamping plate; 8. Bearing housing; 9. Limiting structure; 91. First limit sensor; 92. Second limit sensor; 10. Tension sensor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] The following is combined Figures 1 to 2 The following describes embodiments of the present invention.

[0030] According to an embodiment of the present invention, a tension adjusting device is provided, comprising: a transmission roller 1, a tension roller 2, a floating roller 3, and a horizontal drive assembly. The floating roller 3 is disposed between the transmission roller 1 and the tension roller 2, and the product is sequentially wound around the surfaces of the transmission roller 1, the floating roller 3, and the tension roller 2. The horizontal drive assembly includes a guide structure 4 and a drive structure 5 arranged in a horizontal direction. One end of the guide structure 4 is close to the tension roller 2, and the other end of the guide structure 4 is away from the tension roller 2. The floating roller 3 is connected to the guide structure 4, and the drive structure 5 is connected to the floating roller 3. The drive structure 5 is used to drive the floating roller 3 to move relative to the tension roller 2 along the guide direction of the guide structure 4, so that the floating roller 3 moves closer to or further away from the tension roller 2. The floating roller 3 is always parallel to the transmission roller 1 and the tension roller 2 during relative movement.

[0031] Specifically, drive roller 1 and tension roller 2 are arranged opposite to each other, with a gap between them. Floating roller 3 is positioned between drive roller 1 and tension roller 2, located on one side of tension roller 2. The product is sequentially wound around the surfaces of drive roller 1, floating roller 3, and tension roller 2. Floating roller 3 is movably connected to guide structure 4. Driven by drive structure 5, floating roller 3 can move relative to tension roller 2 along the guide direction of guide structure 4, thus moving closer to or away from tension roller 2. As floating roller 3 moves along the guide direction of guide structure 4, it can adjust the tension on the product. When floating roller 3 moves closer to tension roller 2, it reduces the tension on the product; when floating roller 3 moves away from tension roller 2, it increases the tension on the product.

[0032] The floating roller 3 is driven by the driving structure 5 to move along the guiding direction of the guide structure 4, thereby achieving dynamic tension balance. The tension adjustment device in this embodiment has high precision, good stability, rapid response, and high degree of automation, effectively solving the problems of low precision, poor stability, slow response, and low degree of automation that exist in the prior art that relies on manual experience adjustment or passive mechanical structure adjustment.

[0033] In one embodiment, the guide structure 4 is a linear guide rail, and the floating roller 3 has a slider 6 that slides in cooperation with the linear guide rail.

[0034] Specifically, such as Figure 2 As shown, the floating roller 3 is movably connected to the linear guide rail via the slider 6, thereby moving closer to or further away from the tension roller 2.

[0035] The linear guide has the characteristics of high precision, high rigidity and high wear resistance, which can ensure the stability and accuracy of the floating roller 3 during the movement process, thereby improving the adjustment accuracy and stability of the entire tension adjustment device.

[0036] In other alternative embodiments, the guide structure 4 may be a groove, a lead screw, etc.

[0037] In one embodiment, the drive structure 5 includes a drive pulley 51, a driven pulley 52, a synchronous belt 53, and a drive motor 54. The drive pulley 51 and the driven pulley 52 are respectively disposed at both ends of the drive structure 5. The synchronous belt 53 is wound around the drive pulley 51 and the driven pulley 52. ​​The drive motor 54 is connected to the drive pulley 51, and the floating roller 3 is connected to the synchronous belt 53.

[0038] Specifically, such as Figure 1 and 2As shown, the drive motor 54 is fixed in a designated position by the motor bracket 55. When the drive motor 54 is started, it drives the active pulley 51 to rotate. The active pulley 51 drives the driven pulley 52 to rotate through the synchronous belt 53. Since the floating roller 3 is connected to the synchronous belt 53, the movement of the synchronous belt 53 will drive the floating roller 3 to move relative to the guide structure 4 in the guide direction.

[0039] By employing a transmission method consisting of a drive pulley 51, a driven pulley 52, and a synchronous belt 53, the tension adjustment device of this embodiment has advantages such as smooth transmission, accurate transmission ratio, and low noise. It can precisely control the moving distance and speed of the floating roller 3, thereby achieving precise adjustment of the product tension.

[0040] In one embodiment, the floating roller 3 is provided with a clamping plate 7, which is clamped to the timing belt 53.

[0041] Specifically, such as Figure 2 As shown, the floating roller 3 is connected to the synchronous belt 53 through the clamping plate 7. The clamping plate 7 can enhance the connection strength between the floating roller 3 and the synchronous belt 53, prevent slippage or loosening during transmission, and ensure that the floating roller 3 can accurately follow the movement of the synchronous belt 53, further improving the accuracy and stability of tension adjustment.

[0042] In one embodiment, horizontal drive components are respectively provided at both ends of the floating roller 3, and bearing seats 8 are provided at both ends of the floating roller 3. The bearing seats 8 have bearings connected to the ends of the floating roller 3, and the slider 6 and the clamping plate 7 are provided in the bearing seats 8.

[0043] Specifically, such as Figure 1 As shown, bearing seats 8 are provided at both ends of the floating roller 3. The slider 6 and the clamping plate 7 are provided on the bearing seats 8. The bearing seats 8 are movably connected to the linear guide rail through the slider 6. The bearing seats 8 are fixedly connected to the synchronous belt 53 through the clamping plate 7. When the drive pulley 51 drives the synchronous belt 53 to move, the synchronous belt 53 will drive the bearing seats 8 to move relative to the guide direction of the linear guide rail. When the bearing seats 8 move, they will drive the floating roller 3 to move.

[0044] By setting horizontal drive components at both ends of the floating roller 3, the force on the floating roller 3 is more even during movement, which better maintains its parallel state with the drive roller 1 and tension roller 2, further improving the accuracy and stability of tension adjustment. At the same time, the bearing seat 8 reduces friction and wear of the floating roller 3 during movement, extending the service life of the device.

[0045] In one embodiment, the guide structure 4 is provided with a limiting structure 9, which is used to limit the floating roller 3.

[0046] Specifically, the limiting structure 9 can prevent the floating roller 3 from exceeding the predetermined range during movement, thereby avoiding damage to the product or device itself.

[0047] In one embodiment, the limiting structure 9 includes a first limiting sensor 91 and a second limiting sensor 92. The first limiting sensor 91 and the second limiting sensor 92 are respectively disposed at a first position and a second position on the guide structure 4, with the first position and the second position being spaced apart. The first limiting sensor 91 and the second limiting sensor 92 are respectively electrically connected to the drive structure 5.

[0048] Specifically, such as Figure 2 As shown, the guide structure 4 has a first position and a second position, one of which is close to the tension roller 2, and the other is far from the tension roller 2. A first limit sensor 91 and a second limit sensor 92 are respectively set at the first position and the second position. When the bearing seat 8 moves to the first position, the first limit sensor 91 is triggered, and the first limit sensor 91 sends a stop driving signal to the drive structure 5; when the bearing seat 8 moves to the second position, the second limit sensor 92 is triggered, and the second limit sensor 92 sends a stop driving signal to the drive structure 5.

[0049] By setting the first limit sensor 91 and the second limit sensor 92, the movement range of the floating roller 3 can be precisely limited, preventing the floating roller 3 from exceeding the safe range during movement, avoiding damage to the product due to excessive or insufficient tension, and ensuring the safety and stability of the device operation.

[0050] It should be noted that the first and second positions can be determined according to the product type and the required tension, and no specific position is limited here.

[0051] In one embodiment, the tension roller 2 is equipped with a tension sensor 10, which is electrically connected to the drive structure 5.

[0052] Specifically, such as Figure 2 As shown, the tension sensor 10 monitors the tension value of the product surface in real time and transmits the detection signal to the drive structure 5. The drive structure 5 automatically adjusts the position of the floating roller 3 according to the feedback signal from the tension sensor 10, thereby realizing closed-loop control of the product tension. When the detected tension value is greater than the set value, the drive structure 5 drives the floating roller 3 to move away from the tension roller 2, increasing the product tension; when the detected tension value is less than the set value, the drive structure 5 drives the floating roller 3 to move closer to the tension roller 2, decreasing the product tension.

[0053] By setting up a tension sensor 10 and electrically connecting it to the drive structure 5, the product tension can be adjusted in real time and accurately, ensuring that the tension is always kept within the set range, thereby further improving product quality and production stability.

[0054] In one embodiment, it further includes a control system electrically connected to the drive structure 5, which, upon receiving a drive signal, controls the drive structure 5 to drive the floating roller 3 to move.

[0055] Specifically, the control system (not shown) is electrically connected to the tension sensor 10, the first limit sensor 91, the second limit sensor 92, and the drive motor 54, thereby receiving the output signals from the tension sensor 10, the first limit sensor 91, and the second limit sensor 92. The control system controls the drive motor 54 according to the corresponding signals. When the tension sensor 10 detects that the surface tension value of the product exceeds the preset range, it transmits a signal to the control system. The control system then issues a corresponding command to the drive motor 54, which drives the floating roller 3 to move in the corresponding direction to adjust the product tension to a suitable range. If the first limit sensor 91 or the second limit sensor 92 is triggered, that is, when the floating roller 3 moves to its limit position, the control system immediately controls the drive motor 54 to stop operating to prevent the floating roller 3 from continuing to move and causing damage to the device or the product.

[0056] The control system has intelligent control functions. It can preset the corresponding tension parameters according to the tension requirements of different products and automatically adjust the position of the floating roller 3 during the production process to achieve precise tension control. This greatly improves production efficiency and product quality, reduces manual intervention and operational errors, and further enhances the automation and reliability of the entire tension adjustment device.

[0057] Preferably, the control system is a PLC controller. In other embodiments, the control system may be a microcontroller, industrial control computer, or other device with data processing and control functions.

[0058] According to an embodiment of the present invention, a vacuum coating apparatus is also provided, including the tension adjustment device described in the above embodiments.

[0059] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A tension adjusting device, comprising a drive roller (1), a tension roller (2), and a floating roller (3), wherein the floating roller (3) is disposed between the drive roller (1) and the tension roller (2), and a product is sequentially wound around the surfaces of the drive roller (1), the floating roller (3), and the tension roller (2), characterized in that, Also includes: A horizontal drive assembly includes a guide structure (4) and a drive structure (5) arranged in a horizontal direction. One end of the guide structure (4) is close to the tension roller (2), and the other end of the guide structure (4) is away from the tension roller (2). A floating roller (3) is connected to the guide structure (4), and the drive structure (5) is connected to the floating roller (3). The drive structure (5) is used to drive the floating roller (3) to move relative to the guide structure (4) so ​​that the floating roller (3) moves closer to or away from the tension roller (2). The floating roller (3) is always parallel to the transmission roller (1) and the tension roller (2) when moving relative to the tension roller (2).

2. The tension adjusting device according to claim 1, characterized in that, The guide structure (4) is a linear guide rail, and the floating roller (3) has a slider (6) that slides with the linear guide rail.

3. The tension adjusting device according to claim 2, characterized in that, The drive structure (5) includes a drive pulley (51), a driven pulley (52), a timing belt (53), and a drive motor (54). The drive pulley (51) and the driven pulley (52) are respectively disposed at both ends of the drive structure (5). The timing belt (53) is wound around the drive pulley (51) and the driven pulley (52). The drive motor (54) is connected to the drive pulley (51), and the floating roller (3) is connected to the timing belt (53).

4. The tension adjusting device according to claim 3, characterized in that, The floating roller (3) is provided with a clamping plate (7), which is clamped to the synchronous belt (53).

5. The tension adjusting device according to claim 4, characterized in that, The horizontal drive assembly is provided at both ends of the floating roller (3), and bearing seats (8) are provided at both ends of the floating roller (3). The bearing seats (8) contain bearings connected to the ends of the floating roller (3). The slider (6) and the clamping plate (7) are provided in the bearing seats (8).

6. The tension adjusting device according to claim 1, characterized in that, The guide structure (4) is provided with a limiting structure (9), which is used to limit the floating roller (3).

7. The tension adjusting device according to claim 6, characterized in that, The limiting structure (9) includes a first limiting sensor (91) and a second limiting sensor (92). The first limiting sensor (91) and the second limiting sensor (92) are respectively disposed at a first position and a second position on the guide structure (4). The first position and the second position are spaced apart. The first limiting sensor (91) and the second limiting sensor (92) are respectively electrically connected to the drive structure (5).

8. The tension adjusting device according to claim 1, characterized in that, The tension roller (2) is equipped with a tension sensor (10), which is electrically connected to the drive structure (5).

9. The tension adjusting device according to any one of claims 1 to 8, characterized in that, Also includes: The control system is electrically connected to the drive structure (5). The control system is used to control the drive structure (5) to drive the floating roller (3) to move after receiving the drive signal.

10. A vacuum coating apparatus, characterized in that, include: The tension adjusting device according to any one of claims 1 to 9.

Images