A curing chamber that can quickly eliminate indoor temperature differences

Abstract

This utility model relates to a curing chamber that can quickly eliminate indoor temperature differences. It includes a curing chamber body, and a hot air fan, rollers, and an exhaust fan installed within the curing chamber body. The exhaust fan includes a mounting base and an exhaust fan. The mounting base is a circular column installed at both ends of the curing chamber body's floor. The exhaust fan has a sleeve at its bottom, which is fitted over the outside of the mounting base. The sleeve has a vertical passage groove on its side, connected to several positioning grooves extending laterally to one side. The column has an annular groove and a positioning post. The annular groove is located at the top of the column's circumference. The rear end of the positioning post is damped and slidably connected to the annular groove, and the front end of the positioning post extends into the passage groove. This allows the positioning post to enter the positioning groove and press against the sleeve. Adjusting the height of the exhaust fan pushes the sleeve to rotate along the annular groove with the positioning post. Adjusting the angle of the exhaust fan allows for separate adjustment of height and angle, making the direction of the airflow propelled by the exhaust fan more precise and accelerating the elimination of temperature differences within the curing chamber.

Description

Technical Field

[0001] This invention relates to the field of curing chamber technology, and more particularly to a curing chamber that can quickly eliminate temperature differences within the chamber. Background Technology

[0002] Packaging films are typically made by laminating two or more of the following materials: PET, VMPET, pearl film, aluminum foil, heat-sealable OPP, heat-sealable VMOPP, matte OPP, heat-sealable pearl film, and PE. After laminating the materials, they need to be sent to a curing chamber, also known as a curing chamber. This is a device used for heat preservation and curing of the composite film. The laminated film is placed in the chamber and heated and kept warm for a period of time before being removed and bagged. This allows the main agent and curing agent to fully react within a certain time, achieving the optimal composite strength and removing residual low-boiling-point solvents. This method is widely used in the production of plastic composite films.

[0003] Curing chambers are typically quite long. When hot air is first introduced into the curing chamber using a ventilation system, the temperature is high. As the airflow within the ventilation system increases, the temperature gradually decreases, creating high-temperature and low-temperature zones at both ends of the curing chamber. The film in the low-temperature zone has poor curing performance, the adhesive cannot dry quickly, and a longer curing time is required. Patent number "CN202222926190.2" discloses a rapid ventilation structure for curing chambers. By activating an exhaust fan, it increases airflow within the curing chamber, reducing the temperature difference between the two ends and avoiding the problem of locally high temperatures and prolonged curing time. However, existing curing chamber ventilation structures adjust the height and blowing angle of the exhaust fan by rotating an adjusting screw and threaded sleeve. This lack of independent height or angle adjustment leads to inaccurate airflow direction and increases the time required to eliminate the temperature difference between the two ends of the curing chamber.

[0004] Therefore, designing a curing chamber that can independently adjust the height and angle of the air intake device to quickly eliminate indoor temperature differences has become an urgent technical problem to be solved. Summary of the Invention

[0005] To solve the above problems, this invention provides a curing chamber that can quickly eliminate indoor temperature differences.

[0006] The present invention provides a curing chamber capable of rapidly eliminating indoor temperature differences. The chamber includes a main body and a hot air fan, rollers, and an exhaust fan installed within it. The exhaust fan includes a mounting base and a fan. The mounting base is a circular column installed at both ends of the bottom surface of the main body. The bottom of the fan has a sleeve fitted over the outside of the mounting base. The sleeve has a vertical passage groove on its side, connected to several positioning grooves extending laterally to one side. The column has an annular groove and a positioning post. The annular groove is located at the top of the column's circumference. The rear end of the positioning post is damped and slidably connected to the annular groove, and the front end of the positioning post extends into the passage groove. The widths of both the passage groove and the positioning groove match the width of the positioning post.

[0007] With the above structure, by turning on the induced draft fan located in the high-temperature zone of the curing chamber and directing airflow towards the other end, the high-temperature air flows to the low-temperature zone, reducing the temperature difference between the two ends of the curing chamber and solving the problem of locally high temperatures and long curing times within the curing chamber. The through-sleeve is fitted onto the outside of the mounting base. When the height of the induced draft fan needs to be adjusted, the sleeve is pushed upwards along the column-shaped mounting base. The sleeve drives the induced draft fan upwards, while the front end of the positioning column slides down along the passage groove. In conjunction with the movement of the sleeve, different positioning slots on one side of the passage groove are sequentially aligned with the positioning column. When the induced draft fan rises to a suitable height range and the positioning column is aligned with a certain positioning slot, the positioning column is pushed to rotate along the annular groove with damping, entering laterally into the positioning slot. The positioning column then presses against the upper inner wall of the positioning slot, preventing the sleeve from descending and maintaining the induced draft. At the appropriate height, the fan achieves a better airflow effect. When the angle of the fan needs to be adjusted, simply push the positioning column to rotate along the annular groove while simultaneously rotating the sleeve and positioning column together until the fan on the sleeve rotates to the appropriate angle. The positioning column is connected to the annular groove by a damping sliding connection at its rear end. When the sleeve moves up and down, it is not easy for the positioning column to slide along the annular groove due to slight bumps. The position of the positioning column determines the angle between the sleeve and the fan. This allows the sleeve to move up and down along the mounting base, with the positioning column entering the positioning groove to hold the sleeve in place. Adjusting the height of the fan and pushing the sleeve to rotate along the annular groove with the positioning column adjusts the angle of the fan. Adjusting the height and angle separately makes the direction of the airflow blown by the fan more precise, accelerating the elimination of temperature differences in the curing chamber.

[0008] As a further improvement of this utility model, the positioning post has a hollow structure. The inner side wall of the positioning post is provided with an internal thread and is threadedly connected to an adjusting screw. The rear end face of the positioning post is provided with a narrow-end inward conical groove. The outer side wall of the positioning post is provided with multiple segmented grooves that penetrate into the conical groove. The front end of the adjusting screw extends from the front end of the positioning post, and the rear end is provided with a conical block located in the conical groove. The size of the conical block matches the conical groove, and the taper of the conical block is greater than that of the conical groove.

[0009] With the above structure, by rotating the adjusting screw and engaging the internal thread on the inner wall of the positioning post, the adjusting screw can move from the hollow part of the positioning post to both ends. When the adjusting screw moves towards the front end of the positioning post, it pulls the conical block deeper into the conical groove. Since the size of the conical block matches the conical groove, but the taper of the conical block is greater than that of the conical groove, the conical block will squeeze the inner wall of the conical groove, causing it to expand outward and press against the inner wall of the annular groove, forming a large frictional force. This completes the damped sliding connection of the positioning post on the annular groove. The positioning column has multiple segmented grooves extending through to the conical groove on its outer wall. The rear end of the positioning column expands into segments, enlarging the segmented grooves and making it less likely for the rear end of the positioning column to break in the circumferential direction. By rotating the adjusting screw in the opposite direction, the conical block moves backward, reducing the pressure on the conical groove and adjusting the resistance when the positioning column moves. When it is necessary to adjust the angle of the induced draft fan, the resistance on the positioning column is eliminated, making it easier for the positioning column to move significantly along the annular groove. The front end of the adjusting screw extends from the front end of the positioning column, making it easy to grasp the front end and rotate the adjusting screw.

[0010] As a further improvement of this utility model, the opening of the annular groove is provided with a limiting plate, and the outer side of the positioning post is provided with a snap-fit ​​groove. The snap-fit ​​groove is an arc-shaped groove corresponding to the shape of the limiting plate, and the limiting plate is inserted into the snap-fit ​​groove.

[0011] With the above structure, a limiting plate is set at the opening of the annular groove. The limiting plate is inserted into the snap-fit ​​groove on the outer side of the positioning post to prevent the rear end of the positioning post from falling out of the annular groove. The snap-fit ​​groove is an arc-shaped groove that corresponds to the shape of the limiting plate to avoid maintaining the angle of the positioning post relative to the annular groove.

[0012] As a further improvement of this utility model, the front end of the adjusting screw is provided with an adjusting knob, and the side of the adjusting knob is provided with an anti-slip groove.

[0013] With the above structure, an adjustment knob is provided at the front end of the adjustment screw, which can be grasped to rotate the adjustment screw, avoiding the threads of the adjustment screw from scratching the palm. The side of the adjustment knob is provided with an anti-slip groove, which increases the friction between the adjustment knob and the palm when gripping the adjustment knob, making it easier to exert force to rotate the adjustment screw.

[0014] As a further improvement of this utility model, a positioning block is connected to the inner wall of the positioning groove. The positioning block is located on the side where the positioning groove connects to the passage groove. The positioning block is an elastic block with a raised arc surface.

[0015] With the above structure, when the positioning post enters the positioning groove, it pushes the positioning post to squeeze and deform the positioning block, so that the positioning block passes over the positioning block and enters the positioning groove. Then the positioning block recovers by its own elasticity and blocks between the passage groove and the positioning groove, preventing the positioning post from leaving the positioning groove without external force pushing the positioning post. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic diagram of the structure of this utility model.

[0017] Figure 2 The diagram shows the structure of the passageway in section A.

[0018] Figure 3 The diagram shown is a structural schematic of the positioning column in its disassembled state.

[0019] Figure 4 The diagram shown is a cross-sectional view of the casing.

[0020] 1-Main body of curing chamber, 2-Mounting base, 3-Exhaust fan, 4-Sleeve, 5-Passage groove, 6-Positioning groove, 7-Annular groove, 8-Positioning column, 9-Adjusting screw, 10-Conical groove, 11-Dividing groove, 12-Conical block, 13-Limiting plate, 14-Snap-fit ​​groove, 15-Adjusting knob, 16-Anti-slip groove, 17-Positioning block. Detailed Implementation

[0021] like Figures 1-4 The invention relates to a curing chamber capable of rapidly eliminating indoor temperature differences. The chamber includes a main body 1, and a hot air fan, rollers, and an exhaust fan installed within the main body 1. The exhaust fan includes a mounting base 2 and an exhaust fan 3. The mounting base 2 is a circular column mounted on both ends of the bottom surface of the main body 1. The exhaust fan 3 has a sleeve 4 at its bottom, which is fitted onto the outside of the mounting base 2. The sleeve 4 has a vertical passage groove 5 on its side, which is connected to several positioning grooves 6 extending laterally to one side. The column has an annular groove 7 and a positioning post 8. The annular groove 7 is located at the top of the circumference of the column. The rear end of the positioning post 8 is damped and slidably connected to the annular groove 7, and the front end of the positioning post 8 extends into the passage groove 5. The widths of the passage groove 5 and the positioning grooves 6 are matched with the width of the positioning post 8.

[0022] By turning on the induced draft fan 3 located in the high-temperature zone of the curing chamber and directing airflow towards the other end, the high-temperature air flows to the low-temperature zone, reducing the temperature difference between the two ends of the curing chamber and solving the problem of locally high temperatures and long curing times within the curing chamber. The through sleeve 4 is fitted onto the outside of the mounting base 2. When the height of the induced draft fan 3 needs to be adjusted, the sleeve 4 is pushed upwards along the column-shaped mounting base 2. The sleeve 4 drives the induced draft fan 3 upwards, while the front end of the positioning column 8 slides down along the passage groove 5. In conjunction with the movement of the sleeve 4, different positioning grooves 6 on one side of the passage groove 5 are sequentially aligned with the positioning column 8. When the induced draft fan 3 rises to a suitable height range and the positioning column 8 aligns with a certain positioning groove 6, the positioning column 8 is pushed to rotate along the annular groove 7 with damping, entering laterally into the positioning groove 6. The positioning column 8 then presses against the upper inner wall of the positioning groove 6, preventing the sleeve 4 from descending and maintaining the induced draft fan 3 at a suitable height. The height is adjusted to create a better airflow effect. When the angle of the exhaust fan 3 needs to be adjusted, simply push the positioning column 8 to rotate along the annular groove 7, and simultaneously push the sleeve 4 to rotate with the positioning column 8 until the exhaust fan 3 on the sleeve 4 rotates to the appropriate angle. The rear end of the positioning column 8 is damped and slidably connected to the annular groove 7. When the sleeve 4 is moved up and down, it is not easy for the positioning column 8 to slide along the annular groove 7 due to slight bumps. The position of the positioning column 8 is used to determine the angle between the sleeve 4 and the exhaust fan 3. This allows the sleeve 4 to move up and down along the mounting base 2, with the positioning column 8 entering the positioning groove 6 to hold the sleeve 4. Adjusting the height of the exhaust fan 3 and pushing the sleeve 4 to rotate along the annular groove 7 with the positioning column 8 allows for adjustment of the angle of the exhaust fan 3. Adjusting the height and angle separately makes the direction of the airflow blown by the exhaust fan 3 more precise, accelerating the elimination of temperature differences in the curing chamber.

[0023] The positioning post 8 has a hollow structure. The inner side wall of the positioning post 8 is provided with internal threads and is threadedly connected to the adjusting screw 9. The rear end face of the positioning post 8 is provided with a narrow-end inward tapered groove 10. The outer side wall of the positioning post 8 is provided with multiple segmented grooves 11 that penetrate to the tapered groove 10. The front end of the adjusting screw 9 extends from the front end of the positioning post 8, and the rear end is provided with a tapered block 12 located in the tapered groove 10. The size of the tapered block 12 matches the tapered groove 10, and the taper of the tapered block 12 is greater than that of the tapered groove 10.

[0024] By rotating the adjusting screw 9, which engages with the internal thread on the inner wall of the positioning post 8, the adjusting screw 9 can move from the hollow part of the positioning post 8 to both ends of the positioning post 8. When the adjusting screw 9 moves towards the front end of the positioning post 8, it pulls the conical block 12 deeper into the conical groove 10. Since the size of the conical block 12 matches the conical groove 10, but the taper of the conical block 12 is greater than that of the conical groove 10, the conical block 12 will squeeze the inner wall of the conical groove 10, causing it to expand outward and press against the inner wall of the annular groove 7, forming a large frictional force. This completes the damped sliding connection of the positioning post 8 on the annular groove 7. The outer wall of the positioning column 8 is provided with multiple segmented grooves 11 that extend through the conical groove 10. The positioning column 8 expands into segments at the rear end, and the segmented grooves 11 enlarge, making it less likely for the rear end of the positioning column 8 to break in the circumferential direction. By rotating the adjusting screw 9 in the opposite direction, the conical block 12 is moved back to reduce the compression on the conical groove 10, which can adjust the resistance when the positioning column 8 moves. When it is necessary to adjust the angle of the induced draft fan 3, the resistance on the positioning column 8 is eliminated, making it easier for the positioning column 8 to move significantly along the annular groove 7. The front end of the adjusting screw 9 extends from the front end of the positioning column 8, making it easy to grasp the front end and rotate the adjusting screw 9.

[0025] The groove opening of the annular groove 7 is provided with a limiting plate 13, and the outer side of the positioning post 8 is provided with a snap-fit ​​groove 14. The snap-fit ​​groove 14 is an arc-shaped groove corresponding to the shape of the limiting plate 13, and the limiting plate 13 is inserted into the snap-fit ​​groove 14.

[0026] A limiting plate 13 is set at the opening of the annular groove 7. The limiting plate 13 is inserted into the snap-fit ​​groove 14 on the outer side of the positioning post 8 to prevent the rear end of the positioning post 8 from falling out of the annular groove 7. The snap-fit ​​groove 14 is an arc-shaped groove that corresponds to the shape of the limiting plate 13, so as to avoid maintaining the angle of the positioning post 8 relative to the annular groove 7.

[0027] The front end of the adjusting screw 9 is provided with an adjusting knob 15, and the side of the adjusting knob 15 is provided with an anti-slip groove 16.

[0028] The adjustment knob 15 is located at the front end of the adjustment screw 9. The adjustment knob 15 can be grasped to rotate the adjustment screw 9, avoiding the threads of the adjustment screw 9 from scratching the palm. The adjustment knob 15 is provided with an anti-slip groove 16 on its side, which increases the friction between the adjustment knob 15 and the palm when gripping the adjustment knob 15, making it easier to exert force to rotate the adjustment screw 9.

[0029] As a further improvement of this utility model, the block is set on one side of the positioning groove 6 connecting to the passage groove 5, and the positioning block 17 is an elastic block with a raised arc surface.

[0030] When the positioning post 8 enters the positioning groove 6, it pushes the positioning post 8 to squeeze and deform the positioning block 17, so that it passes over the positioning block 17 and enters the positioning groove 6. Then the positioning block 17 recovers by its own elasticity and blocks between the passage groove 5 and the positioning groove 6, preventing the positioning post 8 from leaving the positioning groove 6 without external force pushing the positioning post 8.

Claims

1. A curing chamber capable of rapidly eliminating indoor temperature differences, comprising a curing chamber body (1), and a hot air fan, rollers, and an exhaust fan installed within the curing chamber body (1), characterized in that: The exhaust fan includes a mounting base (2) and an exhaust fan (3). The mounting base (2) is a circular column installed at both ends of the bottom surface of the main body (1) of the curing chamber. The exhaust fan (3) has a sleeve (4) at its bottom. The sleeve (4) is fitted on the outside of the mounting base (2). The side of the sleeve (4) has a vertical passage groove (5). The passage groove (5) is connected to several positioning grooves (6) extending laterally to one side. The column has an annular groove (7) and a positioning column (8). The annular groove (7) is located at the top of the circumferential surface of the column. The rear end of the positioning column (8) is damped and slidably connected to the annular groove (7). The front end of the positioning column (8) extends into the passage groove (5). The width of the passage groove (5) and the positioning groove (6) are matched with the positioning column (8).

2. The curing chamber according to claim 1, characterized in that: The positioning post (8) is a hollow structure. The inner side wall of the positioning post (8) is provided with internal threads and is threadedly connected to the adjusting screw (9). The rear end face of the positioning post (8) is provided with a narrow-end inward tapered groove (10). The outer side wall of the positioning post (8) is provided with multiple segmented grooves (11) that penetrate to the tapered groove (10). The front end of the adjusting screw (9) extends from the front end of the positioning post (8), and the rear end is provided with a tapered block (12) located in the tapered groove (10). The size of the tapered block (12) matches the tapered groove (10), and the taper of the tapered block (12) is greater than that of the tapered groove (10).

3. The curing chamber according to claim 2, characterized in that: The groove of the annular groove (7) is provided with a limiting plate (13), and the outer side of the positioning post (8) is provided with a snap-fit ​​groove (14). The snap-fit ​​groove (14) is an arc-shaped groove corresponding to the shape of the limiting plate (13). The limiting plate (13) is inserted into the snap-fit ​​groove (14).

4. The curing chamber according to claim 2, characterized in that: The front end of the adjusting screw (9) is provided with an adjusting knob (15), and the side of the adjusting knob (15) is provided with an anti-slip groove (16).

5. A curing chamber capable of rapidly eliminating indoor temperature differences according to claim 1, characterized in that: The inner wall of the positioning groove (6) is connected to a positioning block (17). The positioning block (17) is located on one side of the positioning groove (6) connecting to the passage groove (5). The positioning block (17) is an elastic block with a raised arc surface.

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