Drying equipment for glued polyester film

Abstract

The drying equipment comprises a drying box and an air injection box fixedly arranged in the drying box, a plurality of rows of air injection holes are formed in the lower end face of the air injection box, a plurality of baffles are arranged in the air injection box in an up-down sliding mode, and each baffle corresponds to one row of air injection holes. And a displacement mechanism used for driving the baffle to move up and down is arranged on the drying box, through the structure, the air injection box can determine opening and closing of each row of air injection holes according to the specific width and the number of the polyester films, accurate heating and drying of the polyester films are facilitated, and drying heat is better saved.

Description

Technical Field

[0001] This utility model relates to the field of polyester film processing technology, and in particular to a drying device for polyester film after coating. Background Technology

[0002] PET film, also known as high-temperature resistant polyester film, possesses excellent physical and chemical properties, dimensional stability, transparency, and recyclability. It can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, and optical-grade mirror surface protection. To further improve the composite performance of PET film, it is necessary to coat the PET film surface with adhesive and then dry it.

[0003] The current technology for drying polyester film involves conveying the polyester film into a drying chamber and using an air jet plate of a certain width to dry the surface of the polyester film. However, the drying width of the existing air jet plate is usually fixed and cannot be adjusted according to the width of the polyester film. This results in a problem that when the air jet plate dries a polyester film that is smaller than its own width, it wastes a lot of drying heat. Utility Model Content

[0004] This invention proposes a drying device for polyester film after coating, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: a drying device for polyester film after coating includes a drying box and an air jet box fixedly installed in the drying box. The lower end face of the air jet box is provided with multiple rows of air jet holes. Multiple baffles are slidably arranged inside the air jet box, each baffle corresponding to a row of air jet holes. The drying box is provided with a displacement mechanism for driving the baffles to move up and down.

[0006] The present invention is further configured such that: the displacement mechanism includes a lead screw and a guide post rotatably connected in the jet box, and the baffle is connected to the lead screw by a threaded engagement and slidably disposed on the guide post.

[0007] The present invention is further configured such that: the lead screw and the guide post are located at the two ends of the baffle respectively, and the jet box is provided with an isolation mechanism for isolating the jet hole from the lead screw and the guide post.

[0008] The present invention is further configured such that: the isolation mechanism includes a partition and a baffle; two rows of partitions are arranged inside the jet box; the partitions are located on both sides of the jet hole and between the lead screw and the guide post; the partitions and baffles are staggered; the side walls of the partitions and the side walls of the baffles abut against each other; two baffles are arranged one in front of the other on the upper and lower end faces of the baffles; the baffles and partitions are arranged side by side; the side walls of the baffles and the side walls of the partitions abut against each other; the baffles extend from the baffles to pass through the jet box; the upper and lower end faces of the jet box are provided with through slots for the baffles to pass through; the groove surface of the through slots abuts against the baffles.

[0009] The present invention is further configured such that the upper end of the lead screw extends upward through the jet box and is connected to an operating lever.

[0010] The present invention is further configured such that: the operating rod extends upward and protrudes from the drying chamber; and an internal hexagonal groove is formed on the upper end face of the operating rod.

[0011] The present invention is further configured such that: an air-blocking block is fixedly provided at the lower end of the baffle corresponding to the air jet hole, and the air-blocking block is in the shape of an inverted frustum.

[0012] In summary, the beneficial effects of this utility model are as follows:

[0013] 1. With this structure, the jet box can determine the opening and closing of each row of jet holes according to the specific width and number of polyester films, which helps to accurately heat and dry the polyester film and better save drying heat.

[0014] 2. The partitions and baffles can further concentrate the heat source inside the jet box.

[0015] 3. The air-blocking block can further improve the sealing effect of the baffle on the air jet hole. Attached Figure Description

[0016] 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 these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the jet box in this utility model;

[0019] Figure 3 This is a partial cross-sectional schematic diagram of the jet box in this utility model;

[0020] Figure 4 This is a structural diagram of the baffle in this utility model.

[0021] The following are labeled in the diagram: 1 Drying box, 2 Air jet box, 21 Air jet hole, 22 Baffle, 23 Screw, 24 Guide post, 25 Partition, 26 Baffle, 27 Through slot, 28 Operating lever, 29 Hexagonal socket, 30 Air plug, 31 Connecting pipe. Detailed Implementation

[0022] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0023] Example:

[0024] like Figures 1 to 4 As shown, this utility model discloses a drying device for polyester film after coating, including a drying box 1 and an air jet box 2 fixedly installed in the drying box 1. The upper end of the air jet box 2 is connected to a pipe 31 for connecting to an external heat source. The lower end face of the air jet box 2 has multiple rows of air jet holes 21 for air jet drying of the surface of the polyester film. Multiple baffles 22 are slidably arranged inside the air jet box 2, each baffle 22 corresponding to a row of air jet holes 21. At the same time, an air blocking block 30 is fixedly installed on the lower end face of each baffle 22 corresponding to the air jet hole 21. The air blocking block 30 can be selected to be an inverted frustum shape.

[0025] The drying chamber 1 is equipped with a displacement mechanism for moving the baffle 22 up and down. The displacement mechanism specifically includes a lead screw 23 and a guide post 24 rotatably connected in the air jet box 2. The baffle 22 is connected to the lead screw 23 by a threaded engagement and is slidably mounted on the guide post 24. Meanwhile, the upper end of the lead screw 23 extends upward through the air jet box 2 and is connected to an operating rod 28. The operating rod 28 extends upward and extends out of the drying chamber 1. The upper end face of the operating rod 28 is provided with an internal hexagonal groove 39.

[0026] The lead screw 23 and the guide post 24 are located at both ends of the baffle 22, and the jet box 2 is provided with an isolation mechanism to isolate the jet hole 21 from the lead screw 23 and the guide post 24.

[0027] The isolation mechanism specifically includes partitions 25 and baffles 26. Two rows of partitions 25 are arranged inside the jet box 2. These two rows of partitions 25 are located on both sides of the jet holes 21, but between the lead screw 23 and the guide post 24. In this structure, the partitions 25 and the baffles 22 are staggered, and the side walls of the partitions 25 and the side walls of the baffles 22 abut against each other. In addition, the baffles 26 are arranged as follows: two baffles 26 are arranged one in front of the other on the upper and lower end faces of the baffles 22. The baffles 26 are arranged side by side with the partitions 25, and the side walls of the baffles 26 also abut against the side walls of the partitions 25. Furthermore, the baffles 26 extend from the baffles 22 and pass through the jet box 2. Correspondingly, the upper and lower end faces of the jet box 2 are provided with through slots 27 for the baffles 26 to pass through. The groove surface of the through slots 27 matches the side wall of the baffles 26.

[0028] The working principle of the above structure is as follows: when a polyester film smaller than the width of the jet box 2 or multiple narrow polyester films are conveyed from the drying box 1, the operator can adjust the opening and closing of each row of jet holes 21 according to the specific position of the polyester film. By rotating the operating rod 28, the lead screw 23 drives the baffle 22 to move up and down, thereby causing the air blocking block 30 to open and close the jet holes 21.

[0029] In this structure, the baffle 26 and partition 25 are mainly used to reduce the space inside the air chamber 2 and concentrate heat. At the same time, since the baffles 22 are spaced apart, the up and down movement of the baffles 22 does not affect the flow of heat inside the drying chamber 1.

[0030] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drying device for polyester film after coating, comprising a drying chamber (1) and an air jet box (2) fixedly disposed within the drying chamber (1), characterized in that: The lower end face of the jet box (2) has multiple rows of jet holes (21). Multiple baffles (22) are slidably arranged inside the jet box (2). Each baffle (22) corresponds to a row of jet holes (21). The drying box (1) is provided with a displacement mechanism for driving the baffles (22) to move up and down.

2. The drying equipment for polyester film after coating according to claim 1, characterized in that: The displacement mechanism includes a lead screw (23) and a guide post (24) rotatably connected in the jet box (2). The baffle (22) is connected to the lead screw (23) by a threaded engagement and is slidably disposed on the guide post (24).

3. The drying equipment for polyester film after coating according to claim 2, characterized in that: The lead screw (23) and guide post (24) are located at both ends of the baffle (22), and the jet box (2) is provided with an isolation mechanism for isolating the jet hole (21) from the lead screw (23) and the guide post (24).

4. The drying equipment for polyester film after coating according to claim 3, characterized in that: The isolation mechanism includes a partition (25) and a baffle (26). Two rows of partitions (25) are arranged inside the jet box (2). The partitions (25) are located on both sides of the jet hole (21) and between the lead screw (23) and the guide post (24). The partitions (25) and the baffles (22) are staggered. The sidewalls of the partitions (25) and the sidewalls of the baffles (22) abut against each other. The upper and lower end faces of the baffles (22) are both forward-facing. Two baffles (26) are provided at the rear. The baffles (26) and the partition (25) are arranged side by side. The side wall of the baffle (26) and the side wall of the partition (25) abut against each other. The baffle (26) extends from the baffle (22) to the jet box (2). The upper and lower end faces of the jet box (2) are provided with through slots (27) for the baffles (26) to pass through. The groove surface of the through slot (27) abuts against the baffles (26).

5. The drying equipment for polyester film after coating according to claim 4, characterized in that: The upper end of the lead screw (23) extends upward through the jet box (2) and is connected to the operating lever (28).

6. The drying equipment for polyester film after coating according to claim 5, characterized in that: The operating lever (28) extends upward and passes through the drying box (1), and the upper end face of the operating lever (28) is provided with an internal hexagonal groove (39).

7. The drying equipment for polyester film after coating according to claim 6, characterized in that: The lower end of the baffle (22) is fixedly provided with an air-blocking block (30) corresponding to the jet hole (21), and the air-blocking block (30) is in the shape of an inverted frustum.

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