BOPP film drying device

By designing a BOPP film drying device with upper and lower heating plates and a turbine fan, the problems of uneven drying on one side of the film and dust and moisture prevention in existing devices have been solved, achieving uniform drying on both sides and efficient dust and moisture prevention.

CN223719970UActive Publication Date: 2025-12-26JIANGSU BENDUO NEW MATERIALS
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Patent Information

Application Number
CN202423242872.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-26
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing BOPP film drying equipment uses single-sided drying, resulting in uneven drying of the other side of the film and lack of dust and moisture protection, leading to low efficiency.

Method used

A BOPP film drying device was designed, which includes a drying chamber, upper and lower heating plates, guide rods, a turbine fan and a ventilation hood. The upper and lower heating plates dry both sides of the film evenly, and the turbine fan accelerates the drying process. The ventilation hood provides dust and moisture protection.

Benefits of technology

It achieves uniform drying on both sides of the film, improves drying efficiency, and provides dust and moisture protection, thereby enhancing the reliability and efficiency of the drying process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a BOPP (biaxially-oriented polypropylene) film drying device, which relates to the technical field of film drying, and comprises a drying box, an upper mounting frame and a lower vent hood, the front side surface of the drying box is provided with an inlet, the rear side surface of the drying box is provided with an outlet, a plurality of groups of conveying rollers are arranged in the drying box, BOPP films are conveyed on the conveying rollers, and the lower vent hood is arranged on the upper mounting frame. Multiple sets of upper heating plates are fixed to the upper portion of the inner side wall of the drying box, multiple sets of lower heating plates are fixed to the lower portion of the inner side wall of the drying box, an upper mounting frame and a lower mounting frame are mounted on the upper portion and the lower portion in the drying box correspondingly, an upper vent hood is arranged at the upper end of the drying box, and a lower vent hood is arranged at the lower end of the drying box. Supporting legs are fixed to the lower end of the drying box, and the lower ends of the supporting legs are fixed to the base. According to the BOPP film double-face drying device, the BOPP film is stably guided and conveyed, double-face drying treatment is adopted while stable conveying is conducted, drying is even and reliable, the speed is high, time is saved, and the overall work efficiency of BOPP film drying can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to thin film drying technical field, concretely relates to a BOPP film drying device. BACKGROUND

[0002] BOPP film is biaxially oriented polypropylene film. The production of BOPP film is that the melt of high molecular polypropylene is first made into a sheet or thick film through a narrow machine head, then stretched in a special stretching machine at a certain temperature and speed in two vertical directions at the same time or in steps, and the film is made through appropriate cooling or heat treatment or special processing. BOPP film needs to be heated and dried during conveying. The existing drying device is mostly open.

[0003] In the specification of the prior art (publication number CN214214464U) a BOPP film surface drying device, it is mentioned that "the top of the bottom plate is fixedly installed with a first fixed plate, a second fixed plate, a third fixed plate and a fourth fixed plate around the four corners through screws, a plurality of matched rotating holes are formed in the first fixed plate and the third fixed plate, a plurality of matched rotating holes are rotatably installed with electric rollers, the electric rollers are used for conveying BOPP film, BOPP film inlets and BOPP film outlets are formed in the second fixed plate and the fourth fixed plate for BOPP film to pass in and out, a heater is fixedly installed below the electric roller, and the heater is used for heating and drying the surface of the conveyed BOPP film", but the film surface drying device in the prior art adopts single-sided drying, not only the other film surface cannot be dried, but also the heating is uneven, and the drying process does not prevent dust and moisture, and the use is not efficient and practical. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects existing in the prior art, the present application provides a BOPP film drying device to solve the problem that the film surface drying device in the prior art adopts single-sided drying, not only the other film surface cannot be dried, but also the heating is uneven, and the drying process does not prevent dust and moisture, and the use is not efficient and practical.

[0005] In order to achieve the above object, a BOPP film drying device is provided, which comprises a drying box, an upper mounting frame and a lower ventilation cover, the front side of the drying box is provided with an inlet, and the rear side of the drying box is provided with an outlet, a plurality of conveying rollers are installed in the drying box, and BOPP film is conveyed on the conveying rollers, a plurality of upper heating plates are fixed on the upper part of the inner side wall of the drying box, and a plurality of lower heating plates are fixed on the lower part of the inner side wall of the drying box, an upper mounting frame and a lower mounting frame are respectively installed in the upper and lower parts of the drying box, an upper ventilation cover is arranged at the upper end of the drying box, and a lower ventilation cover is arranged at the lower end of the drying box, support legs are fixed at the lower end of the drying box, and the lower end of the support legs is fixed on the base.

[0006] Further, three upper guide rods are installed in the upper part of the inlet and outlet, three lower guide rods are installed in the lower part of the inlet and outlet, the BOPP film passes through the gap between the upper guide rods and the lower guide rods, and the conveying direction of the BOPP film is from left to right.

[0007] Further, a rotating shaft is installed in the conveying roller, the rear end of the rotating shaft is installed with the front end of the motor, the motor is installed on the front side of the drying box, and anti-skid strips are arranged on the conveying surface of the conveying roller.

[0008] Further, a plurality of connecting plates are arranged in the lower mounting frame, two turbine fans are installed in the connecting plates, and the upper mounting frame and the lower mounting frame are arranged in the same structure.

[0009] Further, the upper end of the lower ventilation cover is provided with an upper sleeve frame, a dust screen is installed in the upper sleeve frame, the lower part of the upper sleeve frame is fixed with a fixed rod, and a plurality of guide plates are arranged in the lower ventilation cover.

[0010] Further, the upper ventilation cover and the lower ventilation cover are symmetrical about the center line of the drying box, and the upper ventilation cover and the lower ventilation cover are arranged in the same structure.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The setting of the upper guide rod and the lower guide rod facilitates the conveying and guiding of the BOPP film into and out of the drying box, and is more convenient and time-saving; and by rotating the rotating shaft clockwise by the motor, the rotating shaft drives the conveying roller to rotate and move, thereby facilitating the rightward conveying of the BOPP film, so as to utilize the upper heating plate and the lower heating plate to simultaneously dry the upper and lower surfaces of the BOPP film, and the drying is more uniform and reliable.

[0013] 2. The turbine fans on the upper mounting frame and the lower mounting frame blow heat to the film surface of the BOPP film, which helps to accelerate the drying speed and is more efficient and time-saving.

[0014] 3. The upper ventilation cover and the lower ventilation cover are convenient for internal and external ventilation, can prevent dust and ventilate during the ventilation process, the airflow is more natural and smooth, and the moisture-proof and waterproof effects are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view schematic diagram of the embodiment of the utility model,

[0016] Figure 2 is a cross-sectional schematic diagram of the embodiment of the utility model,

[0017] Figure 3 is a top view schematic diagram of the lower mounting frame of the embodiment of the utility model,

[0018] Figure 4 is a schematic diagram of the internal structure of the lower ventilation cover of the embodiment of the utility model.

[0019] In the drawing: 1, drying box; 10, inlet; 11, upper guide rod; 12, lower guide rod; 13, conveying roller; 14, rotating shaft; 15, upper heating plate; 16, anti-skid strip; 17, lower heating plate; 18, outlet; 19, base; 100, supporting leg; 101, motor; 2, BOPP film; 3, upper ventilation cover; 4, upper mounting frame; 5, lower mounting frame; 50, turbine fan; 51, connecting plate; 6, lower ventilation cover; 60, fixing rod; 61, upper sleeve frame; 62, dust screen; 63, guide plate. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer, the utility model is further described in detail below by combining with the drawings and embodiments. The specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Specific details such as specific system structure and technology are proposed so that the utility model embodiments can be understood more thoroughly. The described embodiments are part of the embodiments of the disclosure, not all the embodiments. However, those skilled in the art should clearly understand that the utility model can also be realized in other embodiments without these specific details. Based on the embodiments in the disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the disclosure.

[0021] The specific embodiments of the utility model are described in detail below by combining with the drawings.

[0022] Figure 1 is a front view schematic diagram of the embodiment of the utility model, Figure 2 is a cross-sectional schematic diagram of the embodiment of the utility model, Figure 3 is a top view schematic diagram of the lower mounting frame of the embodiment of the utility model, and Figure 4The utility model discloses an inside structure schematic drawing of lower venting cover of the embodiment of the utility model.

[0023] Referring to Figures 1 to 4 As shown in the utility model provides a kind of BOPP film drying device, including drying cabinet 1, upper installation frame 4 and lower venting cover 6, the front side of drying cabinet 1 is provided with import 10, and the rear side of drying cabinet 1 is provided with outlet 18, a plurality of conveying rollers 13 are installed in drying cabinet 1, and BOPP film 2 is conveyed on conveying roller 13, a plurality of upper heating plates 15 are fixed on the inner side wall upper portion of drying cabinet 1, and a plurality of lower heating plates 17 are fixed on the inner side wall lower portion of drying cabinet 1, upper installation frame 4 and lower installation frame 5 are installed in the upper and lower two parts of drying cabinet 1 respectively, and the upper end of drying cabinet 1 is provided with upper venting cover 3, and the lower end of drying cabinet 1 is provided with lower venting cover 6.

[0024] In the embodiment, three groups of upper guide rods 11 are installed in the upper part of import 10 and outlet 18, and three groups of lower guide rods 12 are installed in the lower part of import 10 and outlet 18, and BOPP film 2 passes through the gap between upper guide rod 11 and lower guide rod 12, and the conveying direction of BOPP film 2 is from left to right;Shaft 14 is installed in conveying roller 13, and the rear end of shaft 14 is installed with the front end of motor 101, motor 101 is installed on the front side of drying cabinet 1, and anti-skid strip 16 is arranged on the conveying surface of conveying roller 13.

[0025] As a preferred embodiment, the utility model is convenient for conveying and guiding BOPP film 2 in and out of drying cabinet 1 by the setting of upper guide rod 11 and lower guide rod 12, and is more convenient and time-saving;And by the clockwise rotation of motor 101 to shaft 14, shaft 14 will drive conveying roller 13 to rotate and move together, so as to conveniently convey BOPP film 2 to the right, so as to utilize upper heating plate 15 and lower heating plate 17 to simultaneously dry the upper and lower surfaces of BOPP film 2, and the drying is more uniform and reliable.

[0026] In the embodiment, a plurality of connecting plates 51 are arranged in lower installation frame 5, two groups of turbine fans 50 are installed in connecting plate 51, and the structure of upper installation frame 4 and lower installation frame 5 is the same.

[0027] As a preferred embodiment, the utility model blows heat to the film surface of BOPP film 2 by turbine fan on upper installation frame 4 and lower installation frame 5, which helps to accelerate the drying speed and is more efficient and time-saving.

[0028] In the embodiment, the upper end of the lower ventilation cover 6 is provided with an upper sleeve frame 61, a dust screen 62 is installed in the upper sleeve frame 61, the lower part of the upper sleeve frame 61 is fixed with a fixing rod 60, and a plurality of flow guide plates 63 are arranged in the lower ventilation cover 6; the upper ventilation cover 3 and the lower ventilation cover 6 are symmetrical about the center line of the drying box 1, and the structure of the upper ventilation cover 3 and the lower ventilation cover 6 is the same.

[0029] As a preferred embodiment, the upper ventilation cover 3 and the lower ventilation cover 6 are arranged to facilitate internal and external ventilation and air permeation, the dustproof and air permeation effect is achieved in the air permeation process, the airflow is more natural and smooth, and the moisture-proof and waterproof effect is achieved.

[0030] The utility model can effectively solve the problem that the film surface drying device in the prior art adopts single-sided drying, which not only cannot dry the other film surface and is not heated uniformly, but also is not dustproof and moisture-proof during the drying process and is not efficient and practical in use, the utility model stably guides and conveys the BOPP film, adopts double-sided drying treatment while stably conveying, makes the drying uniform and reliable, fast and time-saving, and helps to improve the overall working efficiency of the BOPP film drying.

[0031] The above embodiment is used to explain and illustrate the utility model, rather than limit the utility model, and any modification and change made to the utility model within the spirit and application protection right claim range of the utility model should be included in the protection range of the utility model.

Claims

1. A BOPP film drying apparatus, characterized by: The utility model provides a BOPP film drying device, including drying box (1), upper installation frame (4) and lower ventilation cover (6), the front side of drying box (1) is provided with import (10), and the rear side of drying box (1) is provided with export (18), a plurality of groups of conveying roller (13) are installed in drying box (1), and BOPP film (2) is conveyed on conveying roller (13), a plurality of groups of upper heating plate (15) are fixed on the inner side wall upper portion of drying box (1), and a plurality of groups of lower heating plate (17) are fixed on the inner side wall lower portion of drying box (1), upper installation frame (4) and lower installation frame (5) are installed in the upper and lower two parts of drying box (1) respectively, and the upper end of drying box (1) is provided with upper ventilation cover (3), and the lower end of drying box (1) is provided with lower ventilation cover (6), the lower end of drying box (1) is fixed with support leg (100), and the lower end of support leg (100) is fixed on base (19).

2. A BOPP film drying apparatus as claimed in claim 1, wherein, Three groups of upper guide rods (11) are installed in the upper portion of import (10) and export (18), three groups of lower guide rods (12) are installed in the lower portion of import (10) and export (18), BOPP film (2) passes through the gap between upper guide rod (11) and lower guide rod (12), and the conveying direction of BOPP film (2) is from left to right.

3. A BOPP film drying device as claimed in claim 1, wherein, Shaft (14) is installed in conveying roller (13), the rear end of shaft (14) is installed with the front end of motor (101), motor (101) is installed on the front side of drying box (1), and anti-skid strip (16) is arranged on the conveying surface of conveying roller (13).

4. The BOPP film drying apparatus according to claim 1, wherein A plurality of groups of connecting plates (51) are arranged in lower installation frame (5), two groups of turbine fans (50) are installed in connecting plate (51), and the structure of upper installation frame (4) and lower installation frame (5) is same.

5. A BOPP film drying apparatus as claimed in claim 1, wherein, Upper sleeve frame (61) is arranged on the upper end of lower ventilation cover (6), dust screen (62) is installed in upper sleeve frame (61), the lower portion of upper sleeve frame (61) is fixed with fixed rod (60), and a plurality of groups of guide plates (63) are arranged in lower ventilation cover (6).

6. A BOPP film drying apparatus as claimed in claim 1, wherein, Upper ventilation cover (3) and lower ventilation cover (6) are symmetrical about the center line of drying box (1), and the structure of upper ventilation cover (3) and lower ventilation cover (6) is same.