Air blast drying box

Abstract

The utility model provides an air blast drying box, which belongs to the technical field of packaging materials and comprises a drying box body and air blowers symmetrically arranged at two ends of the bottom of the drying box body, a dustproof mechanism used for preventing dust from entering is arranged at the lower end of the drying box body and comprises a fixed cover arranged at the lower end of the drying box body, and filter screens are arranged on two sides of the fixed cover. A cleaning assembly used for cleaning the filtering face of the filtering net is further arranged outside the fixing cover. Through the dual functions of mechanical cleaning and negative pressure adsorption, automatic cleaning of the filter screen is achieved, it is ensured that efficient gas circulation is always maintained at the air inlet end of the air blower, and compared with a traditional mode that a fixed filter screen needs to be manually and regularly disassembled and cleaned, the maintenance frequency and cost are reduced; and the problem that the drying efficiency is reduced due to blockage of the filter screen is also avoided.

Description

Technical Field

[0001] This utility model belongs to the field of packaging material technology, specifically relating to a blower drying oven. Background Technology

[0002] Packaging materials refer to the materials used to manufacture packaging containers, packaging decoration, packaging printing, packaging transportation, etc., to meet the packaging requirements of products. They include natural fibers, chemical fibers, composite materials, and other major packaging materials. Currently, after packaging materials are manufactured, they need to be dried using a special forced-air drying oven.

[0003] Existing forced-air drying ovens generally consist of a chamber and a blower. The airflow generated by the blower accelerates the drying process of packaging materials. At the same time, to prevent external dust from contaminating the packaging materials, a filter screen is usually installed at the air inlet to block dust particles. However, although this design can effectively filter dust, there are still some problems in actual use. The filter screen needs to be cleaned manually and regularly. If it is not maintained in time, the airflow at the blower inlet will be reduced, thus affecting the drying efficiency. Frequent maintenance not only increases operating costs, but may also further reduce the working efficiency of the equipment due to filter screen blockage. Utility Model Content

[0004] In view of this, the present invention provides a blower drying box that can achieve automated cleaning of the filter screen through the dual action of mechanical cleaning and negative pressure adsorption, ensuring that the air inlet of the blower always maintains efficient gas flow. Compared with the traditional fixed filter screen that requires manual disassembly and cleaning at regular intervals, this not only reduces the maintenance frequency and cost, but also avoids the problem of reduced drying efficiency caused by filter screen blockage.

[0005] To address the aforementioned technical problems, this utility model provides a forced-air drying oven, comprising a drying chamber body and blowers symmetrically arranged at both ends of its bottom. The lower end of the drying chamber body is equipped with a dustproof mechanism to prevent dust from entering. The dustproof mechanism includes a fixed cover located at the lower end of the drying chamber body, with filter screens on both sides of the fixed cover. The outside of the fixed cover is also equipped with a cleaning component for cleaning the filter screen surface. This component can quickly clean the dust adhering to the filter screen surface and simultaneously suck the brushed-off dust out of the mounting cover, preventing secondary pollution. This integrated design achieves automated cleaning of the filter screen through the dual action of mechanical cleaning and negative pressure adsorption, ensuring that the blower intake always maintains efficient gas flow. Compared to the traditional method of manually disassembling and cleaning fixed filter screens periodically, this not only reduces maintenance frequency and costs but also avoids the problem of decreased drying efficiency due to filter screen clogging.

[0006] The cleaning assembly includes sliding rods symmetrically slidably connected to both ends of the bottom of the fixed cover. A mounting bracket is provided at the lower end between the two sliding rods. Mounting covers are provided on both sides of the upper end of the mounting bracket. The openings of the mounting covers face the filter surfaces of the adjacent filter screens on the same side. Brush rollers are rotatably connected inside the filter screens. The brush rollers are respectively set to cooperate with the filter surfaces of the adjacent filter screens on the same side. The lower end of the drying chamber is also provided with a drive assembly for driving the mounting bracket to move up and down reciprocally, thus realizing the automated cleaning of the filter screens.

[0007] The cleaning components also include negative pressure fans located at both ends of the mounting cover to provide negative pressure.

[0008] The drive assembly includes a threaded cylinder rotatably connected to the bottom of the inner cavity of the fixed cover, a lead screw at the upper end of the mounting bracket, the threaded cylinder being threadedly connected to the lead screw, and a through hole on the fixed cover that matches the lead screw, thus playing the role of reciprocating drive.

[0009] The drive assembly also includes a motor located at the lower end of the drying chamber. The output shaft of the motor is fixedly connected to the threaded cylinder, thus providing a drive source for the threaded cylinder.

[0010] The lead screw is a reciprocating lead screw.

[0011] The drying chamber has an observation window on its door, which makes it easy to monitor the drying status in real time.

[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0013] 1. When the drying oven is started, the blowers at both ends of the bottom continuously supply airflow into the drying chamber to accelerate the drying process. The filters on both sides of the fixed cover can block external dust from entering the chamber. When the airflow is obstructed due to dust accumulation on the filter surface from long-term use, the drive component pushes the mounting bracket, mounting cover, and brush roller to move up and down along the sliding rod. During the movement of the brush roller, the rotating bristles peel off the dust attached to the filter surface. At the same time, the negative pressure fan starts to suck the brushed-off dust out of the mounting cover to avoid secondary pollution. This linkage design achieves automated cleaning of the filter through the dual action of mechanical cleaning and negative pressure adsorption, ensuring that the air inlet of the blower always maintains efficient gas flow. Compared with the traditional fixed filter that requires manual disassembly and cleaning at regular intervals, this not only reduces the maintenance frequency and cost, but also avoids the problem of reduced drying efficiency caused by filter clogging.

[0014] 2. When the motor drives the threaded cylinder to rotate, it pushes the mounting bracket, mounting cover and brush roller to move up and down along the sliding rod through the screw threaded to it, so as to play the role of synchronous up and down reciprocating movement.

[0015] 3. The design of the observation window on the door facilitates real-time monitoring of the drying status, further improving the ease of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a forced-air drying oven according to the present invention;

[0017] Figure 2 This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0020] Figure 5 This is an enlarged structural diagram of section B of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 100, drying chamber; 200, blower; 300, fixed cover; 301, filter screen; 302, sliding rod; 303, mounting bracket; 304, mounting cover; 305, brush roller; 306, negative pressure fan; 400, threaded cylinder; 401, lead screw; 402, motor. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] This embodiment provides a forced-air drying oven, such as Figure 1-5As shown: The dryer includes a drying chamber 100 and blowers 200 symmetrically arranged at both ends of its bottom. Air inlets for providing fixed support to the blowers 200 are provided at both ends of the bottom of the drying chamber 100. A dustproof mechanism to prevent dust from entering is provided at the lower end of the drying chamber 100. The dustproof mechanism includes a fixed cover 300 located at the lower end of the drying chamber 100. Filter screens 301 are provided on both sides of the fixed cover 300. A cleaning assembly for cleaning the filter surface of the filter screens 301 is also provided outside the fixed cover 300. The cleaning assembly includes two symmetrically slidably connected to the bottom of the fixed cover 300. The sliding rod 302 at one end has a mounting bracket 303 at the lower end between the two sliding rods 302. The mounting bracket 303 has mounting covers 304 on both sides of its upper end. The openings of the mounting covers 304 face the filter surface of the adjacent filter screen 301 on the same side. The filter screen 301 is rotatably connected to a brush roller 305. The brush roller 305 is respectively configured to cooperate with the filter surface of the adjacent filter screen 301 on the same side. The lower end of the drying chamber 100 is also provided with a drive assembly for driving the mounting bracket 303 to move up and down. The cleaning assembly also includes negative pressure fans 306 respectively set at both ends of the mounting cover 304.

[0024] When the drying chamber is started, the blowers 200 at both ends of the bottom continuously deliver airflow into the drying chamber 100 to accelerate the drying process. The filters 301 on both sides of the fixed cover 300 can block external dust from entering the chamber. When the airflow is obstructed due to dust accumulation on the surface of the filter 301 due to long-term use, the drive assembly pushes the mounting bracket 303, the mounting cover 304, and the brush roller 305 to move up and down along the sliding rod 302. During the movement of the brush roller 305, the rotating bristles peel off the dust attached to the surface of the filter 301. At the same time, the negative pressure fan 306 starts to suck the brushed dust out of the mounting cover 304 to avoid secondary pollution. This linkage design achieves automated cleaning of the filter 301 through the dual action of mechanical cleaning and negative pressure adsorption, ensuring that the air inlet of the blower 200 always maintains efficient gas flow. Compared with the traditional fixed filter that requires manual disassembly and cleaning at regular intervals, this not only reduces the maintenance frequency and cost, but also avoids the problem of reduced drying efficiency due to filter clogging.

[0025] like Figure 3-5 As shown, the drive assembly includes a threaded cylinder 400 rotatably connected to the bottom of the inner cavity of the fixed cover 300. The bottom of the inner cavity of the fixed cover 300 is provided with a rotating groove for providing rotational support for the threaded cylinder 400. The upper end of the mounting bracket 303 is provided with a lead screw 401, which is a reciprocating lead screw. The threaded cylinder 400 is threadedly connected to the lead screw 401. The fixed cover 300 is provided with a through hole that matches the lead screw 401. The diameter of the through hole is larger than the diameter of the lead screw 401. The drive assembly also includes a motor 402 located at the lower end of the drying chamber 100. The output shaft of the motor 402 is fixedly connected to the threaded cylinder 400.

[0026] When the motor 402 starts, the output shaft drives the threaded cylinder 400 to rotate. Through the lead screw 401 connected to it, the mounting bracket 303, mounting cover 304 and brush roller 305 move up and down along the sliding rod 302, thereby achieving synchronous driving.

[0027] like Figure 1-2 As shown, the drying chamber 100 has an observation window on its door. The design of the observation window facilitates real-time monitoring of the drying status and further improves the ease of operation.

[0028] The working principle of the forced-air drying oven provided by this utility model is as follows: When the forced-air drying oven is started, the blowers 200 at both ends of the bottom continuously deliver airflow into the drying chamber 100 to accelerate the drying process. The filter screens 301 on both sides of the fixed cover 300 can block external dust from entering the chamber. When the airflow is obstructed due to the accumulation of dust on the surface of the filter screen 301 due to long-term use, the motor 402 drives the threaded cylinder 400 to rotate, which in turn pushes the mounting bracket 303, the mounting cover 304, and the brush roller 305 to move up and down along the sliding rod 302 through the screw 401 threadedly connected to it. During the movement of the brush roller 305, the rotating bristles peel off the dust adhering to the surface of the filter screen 301. At the same time, the negative pressure fan 306 starts to suck the brushed-off dust out of the mounting cover 304 to avoid secondary pollution. This linkage design achieves automated cleaning of the filter screen 301 through the dual action of mechanical cleaning and negative pressure adsorption, ensuring that the air inlet of the blower 200 always maintains efficient gas flow. Compared with the traditional fixed filter screen that requires manual disassembly and cleaning at regular intervals, this not only reduces the maintenance frequency and cost, but also avoids the problem of reduced drying efficiency caused by filter screen clogging.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A forced air drying cabinet characterised in that: The utility model provides a dustproof mechanism of drying box, and the dustproof mechanism comprises a fixed cover (300) arranged at the lower end of the drying box (100), both sides of the fixed cover (300) are provided with filter screens (301), and the outside of the fixed cover (300) is further provided with a cleaning assembly for cleaning the filter surface of the filter screen (301).

2. A forced air drying oven as claimed in claim 1, wherein: The cleaning assembly comprises sliding rods (302) symmetrically and slidingly connected to the two ends of the bottom of the fixed cover (300), an installation frame (303) is arranged between the two sliding rods (302) at the lower end, both sides of the upper end of the installation frame (303) are provided with installation covers (304), the openings of the installation covers (304) are all directed to the filter surface of the adjacent filter screen (301) on the same side, brush rollers (305) are rotatably connected in the filter screens (301), the brush rollers (305) are respectively arranged in cooperation with the filter surface of the adjacent filter screen (301) on the same side, and the lower end of the drying box (100) is further provided with a driving assembly for driving the installation frame (303) to move up and down reciprocatingly.

3. A forced air drying oven as claimed in claim 2, wherein: The cleaning assembly further comprises negative pressure fans (306) arranged at the two ends outside the installation covers (304).

4. A forced air drying oven as claimed in claim 2, wherein: The driving assembly comprises a threaded cylinder (400) rotatably connected to the bottom of the inner cavity of the fixed cover (300), the upper end of the installation frame (303) is provided with a lead screw (401), the threaded cylinder (400) is threadedly connected with the lead screw (401), and the fixed cover (300) is provided with a through hole matched with the lead screw (401).

5. A forced air drying oven as claimed in claim 4 wherein: The driving assembly further comprises a motor (402) arranged at the lower end of the drying box (100), and the output shaft of the motor (402) is fixedly connected with the threaded cylinder (400).

6. A forced air drying oven as claimed in claim 4, wherein: The lead screw (401) is a reciprocating lead screw.

7. A forced air drying oven as claimed in claim 1, wherein: An observation window is arranged on the door of the drying box (100).

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