A drying apparatus
By designing an arc-shaped support frame and a fixed cover structure in the PE film drying equipment, simultaneous drying of both sides of the PE film is achieved, solving the problem of uneven drying on one side and ensuring drying uniformity and film quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN SANMA PLASTIC IND CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-02
AI Technical Summary
Existing PE film drying equipment can only achieve single-sided drying, which easily leads to uneven drying.
Two sets of arc-shaped support frames with fixed rollers and fixed covers inside are designed. The fixed covers are equipped with fans and heating wires to achieve synchronous drying of both sides of the PE film. The position of the fixed covers can be adjusted by slide rails and slide rods to accommodate PE films of different thicknesses.
This achieves uniform drying on both sides of the PE film, avoiding over-drying that could affect film quality.
Smart Images
Figure CN224316684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of PE film production equipment, and in particular to a drying device. Background Technology
[0002] PE, short for Polyethylene, is the simplest structural polymer organic compound and the most widely used polymer material in the world today. PE protective film uses special polyethylene (PE) plastic film as its base material, and is classified into high-density polyethylene protective film, medium-density polyethylene, and low-density polyethylene according to different densities. PE film, also called polyethylene film, refers to films produced using PE film. PE film has moisture-proof properties and low moisture permeability. Depending on the manufacturing method and control measures, polyethylene film (PE) can be used to produce products with different properties, such as low-density, medium-density, high-density polyethylene, and cross-linked polyethylene. After lamination, the PE film needs to be dried quickly to accelerate the drying of the colloid; therefore, the PE film must be dried.
[0003] A PE film drying device, with announcement number CN214449292U, includes a frame plate, a base frame, a connecting plate, drying plates, support arms, a fixed base, a PE film roll, and an industrial control computer. In this invention, the PE film roll is wound onto an unwinding shaft, with both ends of the unwinding shaft fixed to the fixed base. The structure is simple, unwinding is convenient, and the unwinding of the PE film roll is easy. Multiple film-passing rollers are used, all positioned between two drying plates, and arranged in a staggered pattern to extend the residence time of the PE film inside the drying plates, effectively increasing the drying efficiency of the PE film. Two drive rollers rotate under the drive of a drive motor, realizing the transfer of the PE film.
[0004] The above technical solution has some problems in practical application. It can only dry one side of the PE film, which can easily lead to uneven drying of the PE film.
[0005] Therefore, it is necessary to invent a drying device to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a drying device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a drying device, including a frame, a fixed frame fixedly disposed in the middle of the upper surface of the frame, two support frames fixedly disposed inside the fixed frame, both support frames being arc-shaped and symmetrically arranged, multiple fixed rollers disposed inside the support frames and distributed in a circular trajectory, a positioning plate fixedly disposed inside the fixed frame, and strip-shaped slide rails fixedly disposed at both ends of the positioning plate, two fixed covers disposed between the two support frames, slide rods fixedly disposed on both sides of the two fixed covers and slidably disposed inside the slide rails, a screw hole opened at one end of the slide rod and a locking nut threaded inside the screw hole, the end of the locking nut being in contact with the outer surface of the slide rail, air inlet slots opened on both sides of the fixed covers, and two sets of symmetrically arranged inclined plates fixedly disposed inside the fixed covers, with a fan penetrating through the middle of the inclined plates.
[0008] Preferably, a windbreak block is fixedly provided in the middle of the inner side of the fixed cover, and the cross-section of the windbreak block is set as an inverted triangle.
[0009] Preferably, air guide grooves are provided on both sides of the wind deflector, and multiple heating wires are fixedly installed inside the air guide grooves.
[0010] Preferably, the bottom end of the fixed cover is provided with an air outlet groove, and the air outlet groove is configured as a strip structure.
[0011] Preferably, support plates are fixedly installed at both ends of the upper surface of the frame, and guide rollers are installed at the top of the support plates.
[0012] Preferably, the air intake slot is configured as a strip structure, and the air intake slot, fan, and air guide slot are located on the same plane.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. This utility model sets up two sets of arc-shaped support frames, with multiple fixed rollers on the inner side of the support frames. The multiple fixed rollers are distributed in a circular trajectory. When the PE film is guided by the multiple fixed rollers, its direction changes, allowing the PE film to pass between the two sets of support frames. By setting up two symmetrical fixed covers between the two sets of support frames, and installing fans and heating wires inside the fixed covers, the hot air generated by the fans and heating wires can act on both sides of the PE film simultaneously, so as to achieve synchronous drying of both sides of the PE film and solve the problem of uneven drying of PE film on one side.
[0015] 2. This utility model provides a positioning plate on the inner side of the fixed frame, slide rails at both ends of the positioning plate, and a slide rod on the outer side of the fixed cover. The slide rod can slide within the slide rails to adjust the position of the fixed cover, thereby adjusting the distance between the fixed cover and the PE film. This allows the position of the fixed cover to be adjusted according to the thickness and specifications of the PE film, thus preventing the PE film from being over-dried and affecting its quality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a side view of the overall structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the support frame structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the fixed cover structure of this utility model.
[0020] Figure 5 This is a cross-sectional view of the fixed cover structure of this utility model.
[0021] In the diagram: 1. Frame; 2. Fixed frame; 3. Support frame; 4. Fixed roller; 5. Positioning plate; 6. Slide rail; 7. Fixed cover; 8. Slide rod; 9. Locking nut; 10. Air inlet slot; 11. Inclined plate; 12. Fan; 13. Wind baffle; 14. Air guide slot; 15. Heating wire; 16. Air outlet slot; 17. Guide roller; 18. Support plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides, for example Figure 1-5 The drying equipment shown includes a frame 1, a fixed frame 2 is fixedly installed in the middle of the upper surface of the frame 1, and two support frames 3 are fixedly installed on the inner side of the fixed frame 2. Both support frames 3 are designed with an arc structure and are symmetrically arranged. Multiple fixed rollers 4 are arranged on the inner side of the support frames 3 and are distributed in a ring trajectory. The multiple fixed rollers 4 can guide the PE film to move in a "Z" shaped trajectory between the support frames 3 so that both sides of the PE film can be dried at the same time.
[0024] A positioning plate 5 is fixedly installed on the inner side of the fixed frame 2. A strip-shaped slide rail 6 is fixedly installed at both ends of the positioning plate 5. Two fixed covers 7 are installed between the two support frames 3. A slide rod 8 is fixedly installed on both sides of the two fixed covers 7. The slide rod 8 is slidably installed inside the slide rail 6. A screw hole is opened at one end of the slide rod 8, and a locking nut 9 is installed in the screw hole. The end of the locking nut 9 is in contact with the outer side of the slide rail 6. The locking nut 9 is used to lock the position between the slide rail 6 and the slide rod 8 to achieve the effect of locking the position of the fixed cover 7. It should be noted that the fixed cover 7 is parallel to the PE film to ensure the uniformity of drying of the PE film.
[0025] The fixed cover 7 has air inlet slots 10 on both sides. Inside the fixed cover 7, two sets of symmetrically arranged inclined plates 11 are fixedly installed, and a fan 12 is installed through the middle of the inclined plate 11. A wind baffle 13 is fixedly installed in the middle of the inner side of the fixed cover 7, and the cross section of the wind baffle 13 is set as an inverted triangle. Both sides of the wind baffle 13 have air guide slots 14. Multiple heating wires 15 are fixedly installed inside the air guide slots 14. The fan 12 guides the air into the air guide slots 14. As the air moves along the air guide slots 14, the heating wires 15 can heat the air.
[0026] The bottom end of the fixed cover 7 is provided with an air outlet 16, and the air outlet 16 is set as a strip structure. The strip structure of the air outlet 16 can ensure that the hot air reaches the surface of the PE film evenly.
[0027] Support plates 18 are fixedly installed at both ends of the upper surface of the frame 1. A guide roller 17 is installed at the top of the support plate 18. The air inlet groove 10 is set as a strip structure. The air inlet groove 10, the fan 12 and the air guide groove 14 are located on the same plane. The air drawn by the fan 12 can be directly sent into the air guide groove 14 and guided by the air guide groove 14 through the air outlet groove 16 to reach the surface of the PE film.
[0028] It should be noted that this technical solution only provides the relevant structure for drying the PE film after extrusion. For the extrusion, traction and other structures of the PE film, the corresponding existing technology can be used, and it will not be described in detail in this technical solution.
[0029] Working principle of this utility model:
[0030] When the device is in use, after the PE film is extruded, it passes through the guide roller 17 and the fixed roller 4 in sequence under the guidance of multiple fixed rollers 4, and moves in a "Z" shaped trajectory between two support frames 3. During this process, the fan 12 draws air through the air inlet slot 10 and delivers the air to the air guide slot 14. The air in the air guide slot 14 is heated by the heating wire 15 and then passes through the air outlet slot 16 to reach the surface of the PE film to achieve the drying of the PE film. The two sets of fixed covers 7 dry both sides of the PE film at the same time to ensure its drying uniformity.
[0031] When drying PE films of different thicknesses, the locking nut 9 can be rotated to separate it from the slide rail 6, thereby releasing the limit between the slide rod 8 and the slide rail 6. This allows the distance between the fixing cover 7 and the PE film to be adjusted to avoid the fixing cover 7 being too close to the PE film and causing excessive drying, which would affect the quality of the PE film.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 apparatus comprising a frame (1), characterized in that: A fixed frame (2) is fixedly installed in the middle of the upper surface of the frame (1). Two support frames (3) are fixedly installed on the inner side of the fixed frame (2). Both support frames (3) are arc-shaped and symmetrically arranged. Multiple fixed rollers (4) are installed on the inner side of the support frames (3) and are distributed in a circular trajectory. A positioning plate (5) is fixedly installed on the inner side of the fixed frame (2). Both ends of the positioning plate (5) are fixedly installed with strip-shaped slide rails (6). A rail is installed between the two support frames (3). Two fixed covers (7) are provided on both sides of the two fixed covers (7), and the slide rods (8) are slidably disposed inside the slide rail (6). One end of the slide rod (8) is provided with a screw hole, and a locking nut (9) is provided in the screw hole. The end of the locking nut (9) is in contact with the outer side of the slide rail (6). Air inlet slots (10) are provided on both sides of the fixed cover (7). Two sets of symmetrically arranged inclined plates (11) are fixedly disposed inside the fixed cover (7), and a fan (12) is provided through the middle of the inclined plate (11).
2. A drying apparatus as claimed in claim 1, wherein: A windbreak block (13) is fixedly installed in the middle of the inner side of the fixed cover (7), and the cross section of the windbreak block (13) is set as an inverted triangle.
3. The drying equipment according to claim 2, characterized in that: Both sides of the wind deflector (13) are provided with air guide grooves (14), and multiple heating wires (15) are fixedly installed inside the air guide grooves (14).
4. The drying equipment according to claim 3, characterized in that: The bottom end of the fixed cover (7) is provided with an air outlet groove (16), and the air outlet groove (16) is set as a strip structure.
5. The drying equipment according to claim 4, characterized in that: The upper surface of the frame (1) is fixedly provided with support plates (18) at both ends, and the top of the support plate (18) is provided with a guide roller (17).
6. The drying equipment according to claim 5, characterized in that: The air intake slot (10) is configured as a strip structure, and the air intake slot (10), fan (12) and air guide slot (14) are located on the same plane.