A wind-knife drying device for loudspeaker mesh production

Abstract

The utility model relates to a loudspeaker net production technical field, concretely is a kind of air knife drying device for loudspeaker net production, including base, fixedly connected with conveying roller between the two sides of base inner chamber, the top of base is fixedly connected with mounting bracket, the top of mounting bracket is fixedly connected with heating shell, and the inner chamber of mounting bracket is provided with air knife body.The utility model is heated to the airflow by heating shell and electric heater cooperation continuously, the high-speed airflow of air knife body is ejected with hot air circulation drying function, improves moisture evaporation efficiency, simultaneously utilizes air extractor and suction hood, suction pipe and forms circulating air duct, and the hot air ejected is recycled to heating shell interior repeated heating utilization, reduces heat loss, cooperates filter mechanism and carries out impurity filtration to circulating airflow, avoids secondary pollution loudspeaker net, replaces traditional multiple air knives series layout by single air knife body heating circulation structure, effectively reduces the overall volume of equipment, reduces electric energy consumption and operation and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of speaker mesh production technology, specifically to an air knife drying device for speaker mesh production. Background Technology

[0002] A speaker grille is usually installed at the horn mouth to prevent dust and protect the internal structure of the speaker. During the production process, drilling equipment is used to drill holes in the raw material sheet. After drilling, some impurities will adhere to the speaker grille, so the speaker grille needs to be washed with water. Finally, an air knife drying device is used to remove the water stains from the speaker grille before it can be cut.

[0003] For example, patent publication number CN221724811U provides an air knife drying device for speaker mesh production. This solution includes a base, with a support structure fixedly installed on the lower surface of the base. Four support structures are fixed and evenly distributed. Several electric rollers are rotatably connected inside the base. A drainage channel is opened on the lower surface of the base, and an electrically controlled valve is installed on the drainage channel. A mounting frame is fixedly connected to the upper surface of the base, and an electric push rod is fixedly installed on the upper surface of the mounting frame. The telescopic end of the electric push rod passes through the mounting frame and extends downward. Two electric push rods are fixed and evenly distributed. A connecting block is fixedly installed on the telescopic end of each electric push rod. An air knife structure is fixedly installed on the lower surface of the connecting block. By setting the air knife structure, when adjusting the air direction, the air guide plate can be moved inside the air nozzle by controlling the control panel, so that the air in the ventilation cavity changes the flow direction when passing through the air nozzle, thereby achieving the effect of regulating the air volume and air direction.

[0004] Although this patent achieves the effect of regulating air volume and direction by moving the air guide plate inside the nozzle and changing the airflow direction as it passes through the nozzle, it lacks a hot air circulation drying function. It only removes surface water stains by blowing away the air with a high-speed airflow. Due to the lack of heating function, the water evaporation efficiency is low, and residual water stains are obvious, especially when the ambient temperature is low. To achieve the drying standard, multiple air knife units need to be connected in series on the production line to extend the blowing time, resulting in increased equipment size, increased energy consumption, and increased maintenance costs. At the same time, the arrangement of multiple air knives can easily cause mutual airflow interference, affecting the drying effect of the horn mesh and making it unsuitable for use.

[0005] Therefore, an air knife drying device for speaker mesh production is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide an air knife drying device for the production of speaker grilles, which solves the problem that existing air knife drying devices do not have a hot air circulation drying function, and multiple air knives need to be installed in series to meet the drying standards, which increases the size of the equipment and energy consumption.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A drying device for a speaker grille production using an air knife includes a base. Conveying rollers are fixedly connected between the two sides of the base's inner cavity. A mounting frame is fixedly connected to the top of the base, and a heating shell is fixedly connected to the top of the mounting frame. An air knife body is disposed within the inner cavity of the mounting frame. The top of the air knife body is connected to the heating shell via a conveying pipe. Drying range adjustment components are fixedly connected to both sides of the top of the air knife body. Suction hoods are connected to both sides of the base, and suction pipes are connected to the top of the suction hoods. Exhaust fans are connected to both sides of the heating shell, with air inlets on opposite sides of the exhaust fans connected to the suction pipes. An electric heater is fixedly connected to the top of the inner cavity of the heating shell, and a filter mechanism is disposed on both sides of the inner cavity of the heating shell.

[0009] Preferably, the drying range adjustment assembly includes two control boxes. The bottom of the control box is fixedly connected to the air knife body. A motor is fixedly connected to the bottom of the inner cavity of the control box. Screws are fixedly connected to the output ends of the two motors on opposite sides. Threaded sleeves are threaded onto the surface of the screws. Push rods are fixedly connected to the front and rear sides of the threaded sleeves. The side of the push rod away from the motor extends through to the outside of the mounting bracket. Triangular limit blocks are provided on both sides of the inner cavity of the air knife body. The opposite sides of the two triangular limit blocks extend through the air knife body and are fixedly connected to the push rods.

[0010] Preferably, guide rails are fixedly connected to the front and rear sides of the inner cavity of the control box, and limit blocks are slidably connected to the inner cavity of the guide rails. The bottom of the limit blocks is fixedly connected to the push rod.

[0011] Preferably, both sides of the air knife body are provided with adjustment openings for use with triangular limiting blocks, the push rod is L-shaped, and both sides of the mounting bracket are provided with movable openings for use with push rod and triangular limiting blocks.

[0012] Preferably, the filtration mechanism includes two filter plates, with a baffle plate fixedly connected to the rear side of the filter plates through the heating shell, and a handle fixedly connected to the rear side of the baffle plate.

[0013] Preferably, the top and bottom sides of the inner cavity of the heating shell are fixedly connected with limiting strips for use with the filter plate, and the rear sides of the heating shell are provided with installation openings for use with the filter plate.

[0014] Preferably, air guide plates are fixedly connected to the top of both sides of the inner cavity of the base, and a cleaning sealing plate is fixedly connected to the front side of the heating shell by bolts.

[0015] Preferably, a control valve is installed on the surface of the delivery pipe, and the two sides of the heating shell are fixedly connected to the mounting frame by reinforcing connecting blocks.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses a heating shell and an electric heater to continuously heat the airflow, enabling the high-speed airflow ejected by the air knife body to have a hot air circulation drying function, thereby improving the moisture evaporation efficiency. At the same time, a circulating air duct is formed by an exhaust fan, a suction hood, and a suction pipe to recover the ejected hot air into the heating shell for repeated heating and reuse, reducing heat loss. The circulating airflow is filtered to remove impurities, preventing secondary pollution of the speaker mesh. The single air knife body heating circulation structure replaces the traditional multi-air knife series layout, effectively reducing the overall size of the equipment, lowering power consumption and operation and maintenance costs, and solving the problems of high energy consumption and low drying efficiency caused by the lack of a heating module in existing devices.

[0018] 2. This utility model uses a drying range adjustment component, which uses a motor-driven screw to move the threaded sleeve horizontally. The push rod controls the triangular limit block to slide synchronously inside the air knife body, adjusting the effective width of the air outlets on both sides of the air knife body. This allows the airflow coverage to accurately match the drying requirements of different sized horn meshes, avoiding excessive airflow diffusion and energy waste. In conjunction with the air guide plate, the airflow inside the base cavity is guided to ensure a stable and controllable hot air circulation path and improve drying uniformity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a side view of the overall three-dimensional structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the heating shell of this utility model;

[0022] Figure 4 This is a cross-sectional view of the air knife body of this utility model;

[0023] Figure 5 This is a cross-sectional view of the control box of this utility model.

[0024] In the diagram: 1. Base; 2. Conveyor roller; 3. Mounting frame; 4. Heating shell; 5. Air knife body; 6. Conveying pipe; 7. Drying range adjustment assembly; 8. Suction hood; 9. Suction pipe; 10. Exhaust fan; 11. Electric heater; 12. Filter mechanism; 71. Control box; 72. Motor; 73. Screw; 74. Threaded sleeve; 75. Push rod; 76. Triangular limit block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the embodiments described below are only some embodiments of the present utility model, and not all of them. If other embodiments are obtained by those skilled in the art without creative effort, they shall fall within the protection scope of the present utility model.

[0026] Reference Figure 1-5 A drying device for a speaker grille production using an air knife includes a base 1. A conveying roller 2 is fixedly connected between the two sides of the inner cavity of the base 1. A mounting frame 3 is fixedly connected to the top of the base 1. A heating shell 4 is fixedly connected to the top of the mounting frame 3. An air knife body 5 is disposed within the inner cavity of the mounting frame 3. The top of the air knife body 5 is connected to the heating shell 4 via a conveying pipe 6. Drying range adjustment components 7 are fixedly connected to both sides of the top of the air knife body 5. Suction hoods 8 are connected to both sides of the base 1. Suction pipes 9 are connected to the top of the suction hoods 8. Exhaust fans 10 are connected to both sides of the heating shell 4. The air inlets on opposite sides of the two exhaust fans 10 are connected to the suction pipes 9. An electric heater 11 is fixedly connected to the top of the inner cavity of the heating shell 4. Filters are disposed on both sides of the inner cavity of the heating shell 4. Mechanism 12 and conveyor roller 2 can transport the horn mesh that needs to be dried to the bottom of the air knife body 5. Mounting bracket 3 facilitates the installation and fixation of heating shell 4 and air knife body 5. Air knife body 5 can spray high-speed airflow to blow off water stains attached to the surface of the horn mesh. Drying range adjustment component 7 can control the blowing range of air knife body 5 to match the specifications of the horn mesh. Suction hood 8 and suction pipe 9 can cooperate with exhaust fan 10 to recover the hot airflow blown out by air knife body 5 into the heating shell 4. Electric heater 11 is used to continue heating the airflow, so that air knife body 5 can continuously blow out hot airflow, which accelerates the drying speed of horn mesh. It is not necessary to set up multiple sets of air knife bodies 5 to reduce equipment energy consumption and maintenance costs.

[0027] As one embodiment of this utility model, refer to Figure 2 , Figure 4 and Figure 5The drying range adjustment assembly 7 includes two control boxes 71. The bottom of the control box 71 is fixedly connected to the air knife body 5. A motor 72 is fixedly connected to the bottom of the inner cavity of the control box 71. Screws 73 are fixedly connected to the output ends of the two motors 72 on opposite sides. Threaded sleeves 74 are threaded onto the surface of the screws 73. Push rods 75 are fixedly connected to the front and rear sides of the threaded sleeves 74. The side of the push rod 75 away from the motor 72 extends to the outside of the mounting bracket 3. Triangular limit blocks 76 are provided on both sides of the inner cavity of the air knife body 5. The opposite sides of the two triangular limit blocks 76 extend through the air knife body 5 and are fixedly connected to the push rods 75. Guide rails are fixedly connected to the front and rear sides of the inner cavity of the control box 71. Limit blocks are slidably connected to the inner cavity of the guide rails. The bottom of the limit blocks is fixedly connected to the push rods 75. All are equipped with adjustment openings for use with the triangular limit block 76. The push rod 75 is L-shaped. Both sides of the mounting bracket 3 are equipped with movable openings for use with the push rod 75 and the triangular limit block 76. The motor 72 is used to control the rotation of the screw 73. The screw 73 can cooperate with the threaded sleeve 74 to control the movement of the push rod 75 and the triangular limit block 76. The triangular limit block 76 can slide inside the air knife body 5, so that it can adjust the air outlet range according to the specifications of the horn mesh, reducing the energy consumption of the equipment. The guide rail and the limit block are used to limit the push rod 75, so that it can move left and right stably and prevent it from deviating when adjusting the triangular limit block 76. The adjustment opening facilitates the position adjustment of the triangular limit block 76, and the movable opening facilitates the push rod 75 to control the use position of the triangular limit block 76.

[0028] As one embodiment of this utility model, refer to Figure 1 , Figure 2 and Figure 3 The filtration mechanism 12 includes two filter plates. A baffle is fixedly connected to the rear side of the filter plates through the heating shell 4. A handle is fixedly connected to the rear side of the baffle. Limiting strips that cooperate with the filter plates are fixedly connected to both sides of the top and bottom of the inner cavity of the heating shell 4. Installation openings that cooperate with the filter plates are opened on both sides of the rear side of the heating shell 4. Air guide plates are fixedly connected to the top of both sides of the inner cavity of the base 1. A cleaning sealing plate is fixedly connected to the front side of the heating shell 4 by bolts. A control valve is installed on the surface of the delivery pipe 6. The sides of the heating shell 4 are fixed to the mounting frame 3 by reinforcing connecting blocks. The filter plate is designed to filter dust from the air. The baffle and handle allow workers to easily remove the filter plate from the heating shell 4 and clean the dust adhering to its surface. The installation opening facilitates the installation and removal of the filter plate. The air guide plate directs the airflow blown out by the air knife body 5 into the base 1, allowing the hot airflow to return to the heating shell 4 through the suction hood 8. This hot airflow recovery reduces the working pressure of the electric heater 11. The control valve controls the opening and closing of the delivery pipe 6. The reinforced connecting block improves the stability of the installation between the heating shell 4 and the mounting bracket 3.

[0029] Working principle: When the device is running, the conveyor roller 2 conveys the horn mesh, moving it to below the air knife body 5. The electric heater 11 heats the air inside the heating shell 4. The hot airflow enters the air knife body 5 through the conveyor pipe 6 and is ejected from the air knife body 5 to form high-speed hot air that sweeps the surface of the horn mesh, accelerating moisture evaporation. At the same time, the exhaust fan 10 draws the ejected hot air into the heating shell 4 through the suction hood 8 and the suction pipe 9, forming a circulating air duct. The filter plate in the filter mechanism 12 intercepts impurities in the circulating airflow, keeping the airflow clean. The electric heater 11 continuously heats the recovered airflow to maintain hot air. Temperature control is achieved by replacing the traditional multi-air knife series layout with a single air knife body 5 heating circulation structure. This effectively reduces the overall size of the equipment, lowers power consumption and operation and maintenance costs, and solves the problems of high energy consumption and low drying efficiency caused by the lack of heating modules in existing devices. When the drying range needs to be adjusted, the motor 72 drives the screw 73 to rotate, the threaded sleeve 74 drives the push rod 75 to move horizontally, and the push rod 75 pushes the triangular limit block 76 to slide inside the air knife body 5, changing the width of the air outlet of the air knife body 5 so that the airflow coverage range matches the size of the horn mesh, avoiding excessive airflow diffusion that would cause energy waste, and further reducing the energy consumption of the equipment.

[0030] Although the embodiments of this utility model have been described in detail with reference to the accompanying drawings, those skilled in the art can make changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of this utility model. The appended claims and their equivalents define the scope of this utility model.

Claims

1. A wind knife drying device for producing speaker grilles, comprising a base (1), characterized in that: A conveying roller (2) is fixedly connected between the two sides of the inner cavity of the base (1). A mounting frame (3) is fixedly connected to the top of the base (1). A heating shell (4) is fixedly connected to the top of the mounting frame (3). An air knife body (5) is provided in the inner cavity of the mounting frame (3). The top of the air knife body (5) is connected to the heating shell (4) through a conveying pipe (6). Drying range adjustment components (7) are fixedly connected to both sides of the top of the air knife body (5). A suction hood (8) is connected to both sides of the base (1). A suction pipe (9) is connected to the top of the suction hood (8). A blower (10) is connected to both sides of the heating shell (4). The air inlets on opposite sides of the two blowers (10) are connected to the suction pipe (9). An electric heater (11) is fixedly connected to the top of the inner cavity of the heating shell (4). A filter mechanism (12) is provided on both sides of the inner cavity of the heating shell (4).

2. The air knife drying device for producing speaker grilles according to claim 1, characterized in that: The drying range adjustment assembly (7) includes two control boxes (71). The bottom of the control box (71) is fixedly connected to the air knife body (5). A motor (72) is fixedly connected to the bottom of the inner cavity of the control box (71). A screw (73) is fixedly connected to the output end of the two motors (72) on opposite sides. A threaded sleeve (74) is threadedly connected to the surface of the screw (73). A push rod (75) is fixedly connected to the front and rear sides of the threaded sleeve (74). The side of the push rod (75) away from the motor (72) extends to the outside of the mounting bracket (3). Triangular limit blocks (76) are provided on both sides of the inner cavity of the air knife body (5). The opposite sides of the two triangular limit blocks (76) extend through the air knife body (5) and are fixedly connected to the push rod (75).

3. The air knife drying device for speaker mesh production according to claim 2, characterized in that: The front and rear sides of the inner cavity of the control box (71) are fixedly connected to guide rails, and the inner cavity of the guide rails is slidably connected to limit blocks. The bottom of the limit blocks is fixedly connected to the push rod (75).

4. The air knife drying device for producing speaker grilles according to claim 2, characterized in that: The air knife body (5) has adjustment openings on both sides for use with the triangular limiting block (76), the push rod (75) is L-shaped, and the mounting bracket (3) has movable openings on both sides for use with the push rod (75) and the triangular limiting block (76).

5. The air knife drying device for producing speaker grilles according to claim 1, characterized in that: The filtration mechanism (12) includes two filter plates. The rear side of the filter plates passes through the heating shell (4) and is fixedly connected to a baffle. The rear side of the baffle is fixedly connected to a handle.

6. The air knife drying device for producing speaker grilles according to claim 5, characterized in that: The heating shell (4) has fixed limit strips on both sides of the top and bottom of the inner cavity, which are used in conjunction with the filter plate. The heating shell (4) has installation openings on both sides of the rear side, which are used in conjunction with the filter plate.

7. The air knife drying device for producing speaker grilles according to claim 1, characterized in that: The top of both sides of the inner cavity of the base (1) is fixedly connected to the air guide plate, and the front side of the heating shell (4) is fixedly connected to the cleaning sealing plate by bolts.

8. The air knife drying device for speaker mesh production according to claim 1, characterized in that: A control valve is installed on the surface of the delivery pipe (6), and the two sides of the heating shell (4) are fixedly connected to the mounting frame (3) by a reinforcing connecting block.

Images