Arch bridge type anti-deformation coating oven structure

Abstract

The utility model discloses an arch bridge type anti -deformation coating baking channel structure, including the baking channel body, and the baking channel body includes base material entrance, base material export, air inlet and air outlet, and forms the baking cavity between base material entrance and base material export, is equipped with tension detection device at base material entrance department and base material export department, is equipped with a plurality of over roller subassembly in the baking cavity, and tension detection device and a plurality of over roller subassembly are arched distribution, and form the baking channel roller group of arch bridge shape, a plurality of over roller subassembly includes a plurality of transition roller subassembly and a plurality of adjusting roller subassembly, and a plurality of transition roller subassembly includes power roller and driven roller. The utility model discloses through tension detection device detection coating base material's tension, when the tension exceeds the set range, through adjusting roller subassembly adjustment coating base material's tension, prevents coating base material and deforms because of tension too big.

Description

Technical Field

[0001] This utility model belongs to the field of thin film coating, specifically relating to an arch-bridge type anti-deformation coating drying tunnel structure. Background Technology

[0002] In the coating industry, the substrate after coating is typically baked and cured. To ensure the curing effect and coating efficiency, the length of the drying tunnel is usually increased to extend the baking time. Most existing drying tunnels have support rollers inside to support the substrate and prevent it from sagging, thus improving the coating effect. However, the substrate is subject to changes in thermal tension, and the support rollers also increase the resistance encountered when pulling the substrate, requiring greater traction force to pull it, which in turn increases the substrate tension and the risk of substrate deformation.

[0003] In the prior art, such as patent document CN111923567B, a dry lamination device for composite films is disclosed. By setting an airflow aid in the drying tunnel, the air circulation in the drying tunnel is promoted, thereby accelerating the drying efficiency. However, this device cannot control the tension of the composite film in the drying tunnel, and there is a risk that the composite film will deform due to the tension change caused by the heating of the drying tunnel. Summary of the Invention

[0004] To address the problems in existing technologies, this utility model proposes an arch-bridge type anti-deformation drying tunnel structure. By using a tension detection device to detect the tension of the coating substrate, when the tension exceeds the set range, the tension of the coating substrate is adjusted by an adjusting roller assembly, thus solving the problem of deformation of the coating substrate caused by tension changes in the coating tank within the drying tunnel.

[0005] This utility model is implemented as follows: an arch-bridge type anti-deformation coating drying tunnel structure includes a drying tunnel body, the drying tunnel body includes a substrate inlet and a substrate outlet for the coating substrate to enter and exit, and an air inlet and an air outlet corresponding to the substrate inlet and the substrate outlet respectively. A drying cavity is formed between the substrate inlet and the substrate outlet. The coating substrate passes through the substrate inlet, the drying cavity and the substrate outlet in sequence. A heating unit or a hot air unit is provided in the drying cavity. When the substrate coated with paint passes through the drying cavity, the paint is cured.

[0006] Tension detection devices are provided at both the substrate inlet and the substrate outlet, improving detection accuracy through multi-point detection. Multiple roller assemblies are provided inside the drying chamber. The tension detection devices and multiple roller assemblies are arranged in an arch shape to form an arched drying tunnel roller group, which increases the contact area between the coating substrate and a single roller assembly. This allows the coating substrate to drive the roller assembly to rotate, preventing the coating substrate from slipping on the roller and thus reducing the risk of coating substrate wear.

[0007] The multiple roller assembly includes multiple transition roller assemblies and multiple adjusting roller assemblies. The multiple transition roller assemblies include a power roller located at the top of the drying tunnel roller group and multiple driven rollers symmetrically arranged on both sides of the power roller. The multiple adjusting roller assemblies are symmetrically arranged on both sides of the power roller, and each adjusting roller assembly is respectively sandwiched between the power roller and the driven rollers, or between the driven rollers. The power roller is used to disperse the traction force required for coating the substrate, avoiding excessive concentration of traction force on the coating substrate, thereby reducing the risk of deformation at the traction point of the coating substrate. Simultaneously, the arched drying tunnel roller group increases the contact area between the power roller and the coating substrate, reducing the risk of slippage between the power roller and the coating substrate, and improving the reliability of the power roller.

[0008] It also includes a control module, which is electrically connected to the tension detection device and the adjusting roller assembly. The tension detection device has a tension threshold range. When the tension detection device detects a tension higher than the upper limit of the tension threshold range, it sends a high electrical frequency to the control module, and the control module controls the adjusting roller assembly to descend. When the tension detection device detects a tension lower than the lower limit of the tension threshold range, it sends a low electrical frequency to the control module, and the control module controls the adjusting roller assembly to rise.

[0009] Preferably, the adjusting roller assembly includes a tension adjusting roller that reciprocates up and down, and a driving component for driving the tension adjusting roller. The driving component is installed on the outside of the drying tunnel body. The output end of the driving component is provided with a connector. One end of the connector is connected to the output end of the driving component, and the other end extends into the drying cavity and connects to the tension adjusting roller. The tension adjusting roller adjusts the tension of the coating substrate by tightening or loosening it through up and down movement, so as to maintain the tension of the coating substrate within a set range, avoid the deformation of the coating substrate due to excessive tension, and at the same time prevent the coating substrate from loosening, which would lead to poor coating effect, thereby improving the product quality of the coating substrate.

[0010] Specifically, the driving component includes a driving unit, the output end of which is provided with a lead screw. A transmission block is screwed onto the lead screw, and the connecting member is mounted on the transmission block and moves synchronously with the transmission block. The lead screw can convert rotational motion into linear motion, reducing the installation space required for the driving component, making the drying tunnel structure more compact, and reducing the volume of the drying tunnel structure.

[0011] Specifically, the drive unit is a servo motor, and the lead screw is a trapezoidal lead screw. The servo motor has high precision, and driving the tension adjusting roller up and down improves the adjustment accuracy and reliability of the tension adjusting roller. The trapezoidal lead screw has a self-locking function, which can maintain the position of the tension adjusting roller in the event of an unexpected power failure of the servo motor, preventing the tension adjusting roller from accidentally falling and improving its safety.

[0012] Specifically, the adjusting roller assembly further includes guide modules symmetrically arranged at both ends of the tension adjusting roller. Each guide module includes a guide rail mounted on the inner wall of the drying chamber, and a slider slidably connected to the guide rail. The slider is connected to the tension adjusting roller and moves synchronously with it. The guide module ensures synchronous movement at both ends of the tension adjusting roller. Since the driving component is located at one end of the tension adjusting roller, the entire tension adjusting roller can only be moved from one end. The guide module prevents the tension adjusting roller from skewing and jamming during movement, thus improving the reliability of the tension adjusting roller.

[0013] Specifically, the adjustment range of the tension adjusting roller is the height difference between adjacent drive rollers and / or driven rollers, thereby preventing the tension adjusting roller from being positioned too high, which would cause the coating substrate to detach from the drive roller and / or driven roller, resulting in wrinkles on the coating substrate due to gravity and affecting the coating quality.

[0014] Preferably, the tension detection device includes a tension detection roller and tension sensors symmetrically arranged on both sides of the tension detection roller, the tension sensors being rotatably connected to the tension detection roller. The tension sensors are used to monitor the tension of the coating substrate in real time, forming a closed loop with the tension adjustment roller, further improving the detection accuracy.

[0015] Preferably, the drying cavity further includes a maintenance port corresponding to the adjusting roller assembly. The maintenance port is located on one side of the adjusting roller assembly, and a normally closed maintenance door is hinged to the maintenance port. The maintenance port is used for maintenance of the adjusting roller assembly, improving the convenience of maintenance.

[0016] Preferably, the driven roller is made of a high-temperature resistant non-metallic material. High-temperature resistant non-metallic materials are generally lightweight, which can reduce the frictional resistance of the driven roller, thereby reducing the traction force required for coating the substrate and further reducing the risk of substrate deformation.

[0017] Preferably, the maximum temperature of the drying cavity is 80°C.

[0018] The beneficial effects of this utility model are:

[0019] This invention proposes an arch-bridge type anti-deformation drying tunnel structure. On the one hand, the driving roller disperses the traction force required for coating the substrate, avoiding excessive concentration of traction force on the substrate, thereby reducing the risk of deformation at the traction point of the substrate. Furthermore, the arch-bridge type drying tunnel roller group increases the contact area between the driving roller and the substrate, reducing the risk of slippage between the driving roller and the substrate and improving the reliability of the driving roller. On the other hand, it increases the contact area between the substrate and the individual roller assembly, enabling the substrate to drive the roller assembly to rotate, preventing the substrate from slipping on the roller and reducing the risk of wear on the substrate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the conveyor belt structure of the drying tunnel of this utility model;

[0021] Figure 2 This is a schematic diagram of the tension detection device for the drying tunnel structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the adjusting roller assembly of the drying tunnel structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the driving component of the drying tunnel structure of this utility model.

[0024] Figure label:

[0025] 1. Drying tunnel body; 2. Tension detection device; 3. Transition roller assembly; 4. Adjusting roller assembly; 11. Substrate inlet; 12. Substrate outlet; 13. Air inlet; 14. Air outlet; 15. Inspection port; 21. Tension detection roller; 22. Tension sensor; 31. Power roller; 32. Driven roller; 41. Tension adjusting roller; 42. Drive component; 43. Connector; 44. Guide module; 421. Drive unit; 422. Lead screw; 423. Transmission block. Detailed Implementation

[0026] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0027] like Figures 1-4As shown, an arch-bridge type anti-deformation coating drying tunnel structure includes a drying tunnel body 1. The drying tunnel body 1 includes a substrate inlet 11 and a substrate outlet 12 for the substrate to enter and exit, as well as an air inlet 13 and an air outlet 14 corresponding to the substrate inlet 11 and the substrate outlet 12, respectively. A drying cavity is formed between the substrate inlet 11 and the substrate outlet 12. The substrate to be coated passes through the substrate inlet 11, the drying cavity and the substrate outlet 12 in sequence. A heating unit or a hot air unit is provided in the drying cavity. When the substrate coated with paint passes through the drying cavity, the paint is cured.

[0028] In this embodiment, the maximum temperature of the drying cavity is 80°C.

[0029] Tension detection devices 2 are provided at both the substrate inlet 11 and the substrate outlet 12, which improves the detection accuracy through multi-point detection.

[0030] In this embodiment, the tension detection device 2 includes a tension detection roller 21 and tension sensors 22 symmetrically arranged on both sides of the tension detection roller 21. The tension sensors 22 are rotatably connected to the tension detection roller 21. The tension sensors 22 are used to monitor the tension of the coating substrate in real time, forming a closed loop with the tension adjusting roller 41, further improving the detection accuracy.

[0031] The drying chamber is equipped with multiple roller assemblies. The tension detection device 2 and the multiple roller assemblies are arranged in an arch shape to form an arch-shaped drying tunnel roller group, which increases the contact area between the coating substrate and a single roller assembly, enabling the coating substrate to drive the roller assembly to rotate, avoiding the coating substrate from slipping on the roller, and thus reducing the risk of wear on the coating substrate.

[0032] The multiple roller assemblies include multiple transition roller assemblies 3 and multiple adjusting roller assemblies 4.

[0033] In this embodiment, the drying cavity is further provided with a maintenance port 15 corresponding to the adjusting roller assembly 4. The maintenance port 15 is located on one side of the adjusting roller assembly 4, and a normally closed maintenance door is hinged to the maintenance port 15. The maintenance port 15 is used for maintenance of the adjusting roller assembly 4, thereby improving the convenience of maintenance of the adjusting roller assembly 4.

[0034] The multiple transition roller assemblies 3 include a power roller 31 located at the top of the drying tunnel roller group and multiple driven rollers 32 symmetrically arranged on both sides of the power roller 31. Multiple adjusting roller assemblies 4 are symmetrically arranged on both sides of the power roller 31, with each adjusting roller assembly 4 sandwiched between the power roller 31 and the driven rollers 32, or between the driven rollers 32. The power roller 31 is used to disperse the traction force required for the coating substrate, avoiding excessive concentration of traction force on the coating substrate, thereby reducing the risk of deformation at the traction point of the coating substrate. Simultaneously, the arched drying tunnel roller group increases the contact area between the power roller 31 and the coating substrate, reducing the risk of slippage between the power roller 31 and the coating substrate, and improving the reliability of the power roller 31.

[0035] In this embodiment, the adjusting roller assembly 4 includes a tension adjusting roller 41 that reciprocates up and down, and a driving member 42 that drives the tension adjusting roller 41. The driving member 42 is installed on the outside of the drying tunnel body 1. The output end of the driving member 42 is provided with a connector 43. One end of the connector 43 is connected to the output end of the driving member 42, and the other end extends into the drying chamber and is connected to the tension adjusting roller 41. The tension adjusting roller 41 adjusts the tension of the coating substrate by tensioning or relaxing it through up and down movement, so that the tension of the coating substrate is maintained within a set range, avoiding excessive tension that could cause deformation of the coating substrate. At the same time, it can also prevent the coating substrate from becoming loose, which could lead to poor coating effect, thereby improving the product quality of the coating substrate.

[0036] Specifically, the driving component 42 includes a driving unit 421, the output end of which is provided with a lead screw 422. A transmission block 423 is screwed onto the lead screw 422, and the connecting member 43 is mounted on the transmission block 423 and moves synchronously with the transmission block 423. The lead screw 422 can convert rotational motion into linear motion, reducing the installation space required for the driving component 42, making the drying tunnel structure more compact, and reducing the volume of the drying tunnel structure.

[0037] Specifically, the drive unit 421 is a servo motor, and the lead screw 422 is a trapezoidal lead screw 422. The servo motor has high precision, and driving the tension adjusting roller 41 up and down improves the adjustment accuracy and reliability of the tension adjusting roller 41. The trapezoidal lead screw 422 has a self-locking function, which can maintain the position of the tension adjusting roller 41 in the event of an unexpected power failure of the servo motor, preventing the tension adjusting roller 41 from accidentally falling and improving its safety.

[0038] Specifically, the adjusting roller assembly 4 further includes guide modules 44 symmetrically arranged at both ends of the tension adjusting roller 41. Each guide module 44 includes a guide rail mounted on the inner wall of the drying chamber, and a slider slidably connected to the guide rail. The slider is connected to the tension adjusting roller 41 and moves synchronously with it. The guide module 44 is used to ensure synchronous movement of both ends of the tension adjusting roller 41. Since the driving member 42 is located at one end of the tension adjusting roller 41, it can only drive the entire tension adjusting roller 41 from one end. The guide module 44 prevents the tension adjusting roller 41 from skewing and jamming during movement, thus improving the reliability of the tension adjusting roller 41.

[0039] Specifically, the adjustment range of the tension adjusting roller 41 is the height difference between adjacent power rollers 31 and / or driven rollers 32, thereby preventing the position of the tension adjusting roller 41 from being too high, causing the coating substrate to detach from the power rollers 31 and / or driven rollers 32, which in turn causes the coating substrate to wrinkle due to gravity, affecting the coating quality.

[0040] In this embodiment, the driven roller 32 is made of a high-temperature resistant non-metallic material. High-temperature resistant non-metallic materials are generally lightweight, which can reduce the frictional resistance of the driven roller 32, thereby reducing the traction force required for the coating substrate and further reducing the risk of deformation of the coating substrate.

[0041] It also includes a control module, which is electrically connected to the tension detection device 2 and the adjusting roller assembly 4. The tension detection device 2 has a tension threshold range. When the tension detection device 2 detects that the tension is higher than the upper limit of the tension threshold range, it sends a high electrical frequency to the control module, and the control module controls the adjusting roller assembly 4 to descend. When the tension detection device 2 detects that the tension is lower than the lower limit of the tension threshold range, it sends a low electrical frequency to the control module, and the control module controls the adjusting roller assembly 4 to rise.

[0042] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An arch-bridge type anti-deformation coating drying tunnel structure, comprising a tunnel body, the tunnel body including a substrate inlet and a substrate outlet for the coating substrate to enter and exit, and an air inlet and an air outlet respectively corresponding to the substrate inlet and the substrate outlet, wherein a drying cavity is formed between the substrate inlet and the substrate outlet, and the coating substrate sequentially passes through the substrate inlet, the drying cavity and the substrate outlet, characterized in that: Tension detection devices are provided at both the substrate inlet and the substrate outlet. Multiple roller assemblies are provided inside the drying chamber. The tension detection devices and multiple roller assemblies are arranged in an arch shape to form an arched drying tunnel roller group. The multiple roller assembly includes multiple transition roller assemblies and multiple adjusting roller assemblies. The multiple transition roller assemblies include a power roller located at the top of the drying tunnel roller group and multiple driven rollers symmetrically arranged on both sides of the power roller. The multiple adjusting roller assemblies are symmetrically arranged on both sides of the power roller, and each adjusting roller assembly is respectively sandwiched between the power roller and the driven roller, or sandwiched between the driven rollers. It also includes a control module, which is electrically connected to the tension detection device and the adjusting roller assembly.

2. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 1, characterized in that: The adjusting roller assembly includes a tension adjusting roller that reciprocates up and down, and a driving component that drives the tension adjusting roller. The driving component is installed on the outside of the drying tunnel body. The output end of the driving component is provided with a connector. One end of the connector is connected to the output end of the driving component, and the other end extends into the drying cavity and is connected to the tension adjusting roller.

3. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 2, characterized in that: The driving component includes a driving unit, the output end of which is provided with a lead screw, a transmission block is screwed onto the lead screw, and the connecting piece is installed on the transmission block and moves synchronously with the transmission block.

4. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 3, characterized in that: The drive unit is a servo motor, and the lead screw is a trapezoidal lead screw.

5. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 2, characterized in that: The adjusting roller assembly also includes guide modules symmetrically arranged at both ends of the tension adjusting roller. The guide module includes a guide rail installed on the inner wall of the drying chamber. The guide rail is provided with a slider that is slidably connected. The slider is connected to the tension adjusting roller and moves synchronously with the tension adjusting roller.

6. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 2, characterized in that: The adjustment range of the tension adjusting roller is the height difference between adjacent driving rollers and / or driven rollers.

7. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 1, characterized in that: The tension detection device includes a tension detection roller and tension sensors symmetrically arranged on both sides of the tension detection roller, wherein the tension sensors are rotatably connected to the tension detection roller.

8. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 1, characterized in that: The drying chamber is also provided with an inspection port corresponding to the adjusting roller assembly. The inspection port is located on one side of the adjusting roller assembly, and a normally closed inspection door is hinged to the inspection port.

9. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 1, characterized in that: The driven roller is made of a high-temperature resistant non-metallic material.

10. The arch-bridge type anti-deformation coating drying tunnel structure according to claim 1, characterized in that: The maximum temperature of the drying cavity is 80°C.

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