Air pressure control device for cotton bin

Abstract

The utility model discloses a cotton bin air pressure control device and belongs to the technical field of non-woven equipment. Comprising an air duct, a fan cover arranged on one side of the air duct and communicated with the air duct, a wind shield rotationally arranged in the fan cover and used for controlling the ventilation quantity of the fan cover, a driving mechanism installed on the air duct and used for controlling the wind shield to rotate, and an air pressure detection device fixed to the outer side of the air duct and used for detecting the air pressure in the air duct. The device has the advantages that the stability of air pressure in the cotton bin is effectively controlled, pressure reduction can still be adjusted and the device continues to work under the conditions that the screen plate between the cotton inlet and the air suction port of the cotton condenser is blocked and the air pressure in the cotton bin is increased, and the frequency of cleaning the screen plate between the cotton condenser and the cotton bin by workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to non - woven equipment technical field, and specifically relates to a cotton storehouse air pressure control device. BACKGROUND

[0002] In non - woven equipment, most need to use airflow to participate in the transportation and processing of fiber, especially in the production of felt equipment such as air laying machine, fiber is generally conveyed by airflow and falls into the cotton storehouse after passing through the condensing cotton ware and drops into the air laying machine, the mesh plate is arranged between the condensing cotton ware inlet and the air inlet to make the airflow discharge, and the fiber is isolated and falls down. Since the air laying machine has high requirements for the air pressure stability in the cotton storehouse, whether the air pressure in the cotton storehouse is stable will directly affect the thickness uniformity of the product of the air laying machine, so keeping the air pressure in the cotton storehouse stable is one of the very important links in the production of the air laying machine. But with the passage of time, the mesh plate between the condensing cotton ware inlet and the air inlet is often blocked, which eventually leads to the increase of the air pressure in the cotton storehouse, which not only leads to the problem of uneven thickness of the product of the air laying machine, but also may directly burst the cotton storehouse, thereby causing work stagnation and waste of a large amount of fiber, so workers need to clean the mesh plate regularly to keep the air pressure in the cotton storehouse stable.

[0003] In view of the above situation, it is necessary to design a cotton storehouse air pressure control device which has simple structure, low cost, can keep the air pressure in the cotton storehouse stable and can reduce the frequency of workers cleaning the mesh plate. For this purpose, the applicant has made a useful design, and the technical scheme to be introduced below is produced in this background. CONTENT OF THE UTILITY MODEL

[0004] The utility model relates to a cotton storehouse air pressure control device which helps to improve the connection structure between the cotton storehouse and the condensing cotton ware to control the airflow entering the cotton storehouse and keep the air pressure in the cotton storehouse stable, and is conducive to continuing work when the mesh plate between the condensing cotton ware inlet and the air inlet is blocked, thereby reducing the frequency of workers cleaning the mesh plate.

[0005] The utility model is accomplished in the following way: a cotton storehouse air pressure control device includes an air duct, a fan cover arranged on one side of the air duct and communicating with the air duct, a baffle rotatably arranged in the fan cover for controlling the ventilation volume of the fan cover, a driving mechanism installed on the air duct for controlling the rotation of the baffle, and an air pressure detection device fixed on the outside of the air duct for detecting the air pressure in the air duct.

[0006] In one specific embodiment of the utility model, the air duct includes a ventilation plate, a back plate and a pair of side plates fixedly connected to the left and right ends of the ventilation plate and the back plate respectively, and the ventilation plate, the back plate and the side plates enclose an up-down through channel.

[0007] In another specific embodiment of the utility model, the ventilation plate is provided with a plurality of air holes which are uniformly or unevenly distributed, a plurality of reinforcing plates are fixed at intervals in the length direction of the ventilation plate, and the side edge of the ventilation plate towards the air scoop is provided with a flange for fixed connection with the air scoop.

[0008] In another specific embodiment of the utility model, the air scoop comprises a front-to-rear air passage, the opening edge of the air scoop on the side towards the air duct is provided with a rear flange for fixed connection with the air duct, and the opening edge of the air scoop on the side away from the air duct is provided with a front flange.

[0009] In another specific embodiment of the utility model, the lower edge of the wind shield is provided with a wind shield shaft, the two ends of the wind shield shaft respectively pass through the air scoop and are rotatably arranged on a shaft base, one end of the wind shield shaft towards the driving mechanism extends a key shaft, and the key shaft is in transmission connection with the driving mechanism.

[0010] In another specific embodiment of the utility model, the driving mechanism comprises a gear box, an electric push cylinder fixed on one side of the gear box and in transmission connection with the gear box, an electric motor arranged on the same side as the electric push cylinder and in transmission connection with the gear box, and a swing arm hinged on the cylinder column of the electric push cylinder and in transmission connection with the key shaft, the other side of the gear box is hinged on a gear box base, the gear box base is fixed on the air duct, and one end of the swing arm is provided with a key shaft hole in transmission connection with the key shaft.

[0011] In a further specific embodiment of the utility model, the wind shield is completely closed in the vertical state.

[0012] In a further specific embodiment of the utility model, a sealing ring is arranged at the connecting position between the air duct and the air scoop.

[0013] The utility model has the beneficial effects that: the air pressure detection device is arranged between the cotton box and the condensing device, the ventilation amount is adjusted according to the air pressure, the stability of the air pressure in the cotton warehouse is effectively controlled, the net plate between the condensing device and the air inlet is still able to adjust the pressure and continue to work in the case that the net plate is blocked and the air pressure in the cotton warehouse is increased, and the frequency of the workers cleaning the net plate between the condensing device and the cotton warehouse is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of one embodiment of the utility model.

[0015] In the figure: 1. air duct, 11. ventilation plate, 111. air hole, 112. reinforcing plate, 113. ventilation plate flange, 12. back plate, 13. side plate, 14. channel; 2. air cover, 21. air hole, 22. air cover rear flange, 23. air cover front flange; 3. wind shield, 31. wind shield shaft, 311. key shaft, 32. shaft seat; 4. driving mechanism, 41. gear box, 411. gear box seat, 42. electric push cylinder, 421. cylinder column, 43. motor, 44. swing arm, 441. key shaft hole; 5. air pressure detection device. DETAILED DESCRIPTION

[0016] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the description of the embodiments is not a limitation on the technical solutions, and any formal but not substantial changes according to the concept of the present application should be regarded as the protection scope of the present application.

[0017] In the following description, the directional or positional concepts of up, down, left, right, front and back are all based on the position shown in the figure, so they should not be understood as a special limitation on the technical solutions provided by the present application. Figure 1

[0018] Please refer to Figure 1 The utility model relates to a cotton storehouse air pressure control device, including an air duct 1, a wind cover 2 of setting in air duct 1 one side and with air duct 1 communication, a wind shield 3 of rotating setting in wind cover 2 is used for controlling the ventilation of wind cover 2, a driving mechanism 4 of installing in air duct 1 and being used for controlling the rotation of wind shield 3 and an air pressure detection device 5 of fixing in air duct 1 outside is used for detecting the air pressure in air duct 1. The aforementioned wind shield 3 is completely closed in the up-down vertical state of wind cover 2.

[0019] Further, the aforementioned air duct 1 includes a ventilation plate 11, a back plate 12 and a pair of side plates 13 fixedly connected to the left and right ends of the ventilation plate 11 and the back plate 12, respectively, and the aforementioned ventilation plate 11, back plate 12 and side plates 13 form an up-down through channel 14. A plurality of evenly or unevenly distributed air holes 111 are formed on the ventilation plate 11, and a plurality of reinforcing plates 112 are fixedly arranged along the length direction of the ventilation plate 11. The side edge of the ventilation plate 11 facing the wind cover 2 is provided with a flange 113 for fixed connection with the wind cover 2.

[0020] Further, the aforementioned wind cover 2 includes a front-rear through air hole 21, and the opening edge of the wind cover 2 on the side facing the air duct 1 is provided with a flange 22 for fixed connection with the air duct 1, and the opening edge of the wind cover 2 on the side away from the air duct 1 is provided with a flange 23. A sealing ring is arranged at the connection position between the air duct 1 and the wind cover 2.

[0021] Please refer to​Figure 1 The lower edge of the aforementioned wind deflector 3 is provided with a wind deflector shaft 31, both ends of the wind deflector shaft 31 extend out of the air duct 2 and are rotatably arranged on a shaft base 32, one end of the wind deflector shaft 31 extends a key shaft 311 towards the driving mechanism 4, and the aforementioned key shaft 311 is drivingly connected with the driving mechanism 4.

[0022] In the present embodiment, the aforementioned driving mechanism 4 comprises a gear box 41, an electric push cylinder 42 fixed on one side of the gear box 41 and drivingly connected with the gear box 41, an electric motor 43 arranged on the same side as the electric push cylinder 42 and drivingly connected with the gear box 41, and a swing arm 44 hinged on the cylinder column 421 of the electric push cylinder 42 and drivingly connected with the key shaft 311, the other side of the aforementioned gear box 41 is hinged on a gear box base 411, the gear box base 411 is fixed on the air duct 1, one end of the aforementioned swing arm 44 is provided with a key shaft hole 441 drivingly connected with the key shaft 311.

[0023] Please continue to see Figure 1In use, the lower end of the air duct 1 is first connected to the opening of the cotton bin of the air laying machine, and then the upper end of the air duct 1 is connected to the condensing device, and then the air cover 2 is connected to the exhaust pipe through the air cover front flange 23 to facilitate the discharge of excess air flow. After the mixed air flow and the fibers pass through the condensing device, the air flow is discharged from the screen plate, and the fibers fall into the passage 14 of the air duct 1, and then fall into the cotton bin and then into the air laying machine for processing. When the screen plate is blocked, the air pressure in the passage 14 and the cotton bin increases, and the air pressure detection device 5 detects the increase in air pressure and feeds back a signal to the controller of the air laying machine. The controller controls the motor 43 to work, and the motor 43 drives the gear box 41 to work and makes the cylinder rod 421 of the electric push cylinder 42 retract, and then the cylinder rod 421 pulls the swing arm 44 to rotate, and the swing arm 44 drives the key shaft 311 to rotate, and the wind shield shaft 31 and the wind shield 3 rotate clockwise, and the air vent 21 in the air cover 2 slowly opens, and the excess air flow is discharged through the air hole 111 and the air vent 21. At this moment, when the air pressure detection device 5 detects that the air pressure in the passage 14 and the cotton bin has returned to the normal stable value, it feeds back a signal to the controller to stop the motor 43 from working. If the air pressure detection device 5 detects that the air pressure is lower than the stable value, it feeds back a signal to the controller to make the motor 43 rotate in the opposite direction, and the motor 43 drives the gear box 41 to work and makes the cylinder rod 421 of the electric push cylinder 42 push out, and the cylinder rod 421 pulls the swing arm 44 to rotate, and the swing arm 44 drives the key shaft 311 to rotate, and the wind shield shaft 31 and the wind shield 3 rotate counterclockwise, and the air vent 21 in the air cover 2 slowly closes to reduce the air flow discharged from the air hole 111 and the air vent 21, so that the air pressure in the passage 14 and the cotton bin increases to the normal stable value. And when the air pressure detection device 5 detects that the air pressure is high and the wind shield 3 is fully open for a long time, the controller will trigger an alarm signal to remind the staff to clean the screen plate.

Claims

1. A cotton silo air pressure control device, characterized by: The invention comprises an air duct (1), a wind shield (2) arranged on one side of the air duct (1) and connected to the air duct (1), a wind shield (3) rotatably arranged in the wind shield (2) for controlling the ventilation volume of the wind shield (2), a driving mechanism (4) installed on the air duct (1) and used to control the rotation of the wind shield (3), and an air pressure detection device (5) fixed on the outside of the air duct (1) for detecting the air pressure in the air duct (1).

2. A cotton silo air pressure control device according to claim 1, characterized in that: The air duct (1) comprises a ventilation plate (11), a back plate (12) and a pair of side plates (13) fixedly connected to the left and right ends of the ventilation plate (11) and the back plate (12), respectively. The ventilation plate (11), the back plate (12) and the side plates (13) enclose a vertically penetrating channel (14).

3. A cotton silo air pressure control device according to claim 2, characterized in that: The ventilation plate (11) is provided with a plurality of air holes (111) distributed evenly or unevenly. A plurality of reinforcing plates (112) are fixed at intervals in the longitudinal direction of the ventilation plate (11). A ventilation plate flange edge (113) is formed on one side edge of the ventilation plate (11) facing the wind cover (2) for fixed connection with the wind cover (2).

4. The cotton silo air pressure control device according to claim 1, characterized in that: The wind hood (2) comprises a vent (21) that passes through from front to back. The opening edge of the wind hood (2) on the side facing the air duct (1) is formed with a circle of wind hood rear flange edge (22) for fixed connection with the air duct (1). The opening edge of the wind hood (2) on the side away from the air duct (1) is formed with a circle of wind hood front flange edge (23).

5. The cotton silo air pressure control device according to claim 1, characterized in that: The lower edge of the windshield (3) is formed with a windshield shaft (31), both ends of which pass through the wind cover (2) and are rotatably arranged on a shaft seat (32), and a key shaft (311) extends from one end of the windshield shaft (31) toward the driving mechanism (4), and the key shaft (311) is connected to the driving mechanism (4) in a transmission manner.

6. The cotton silo air pressure control device according to claim 5, characterized in that: The driving mechanism (4) comprises a gear box (41), an electric push cylinder (42) fixed on one side of the gear box (41) and connected to the gear box (41), a motor (43) arranged on the same side as the electric push cylinder (42) and connected to the gear box (41), and a swing arm (44) hinged on the cylinder column (421) of the electric push cylinder (42) and connected to the key shaft (311). The other side of the gear box (41) is hinged on a gear box seat (411), and the gear box seat (411) is fixed on the air duct (1). One end of the swing arm (44) is formed with a key shaft hole (441) connected to the key shaft (311).

7. The cotton silo air pressure control device according to claim 1, characterized in that: The wind shield (3) completely closes the wind cover (2) in an up-and-down vertical state.

8. The cotton silo air pressure control device according to claim 1, characterized in that: A sealing ring is provided at the connection position between the air duct (1) and the air cover (2).

Images