Uniform blowing mechanism for airflow lapper

Abstract

The utility model discloses a uniform air blowing mechanism for an air laying machine, and belongs to the field of air laying equipment. The uniform air blowing mechanism comprises a uniform air duct, and the uniform air duct comprises an air inlet section which is communicated with the air outlet end of a fan; the mixing section is communicated with the air inlet section, at least two layers of mixing rollers are fixedly arranged in the mixing section, and the two adjacent layers of mixing rollers are arranged in a crossed and staggered manner; the air outlet section is communicated with the mixing section, the air outlet section is arranged in an arc-shaped reducing manner, an adjusting roller is eccentrically arranged at an air outlet of the air outlet section, and the air outlet is shielded by the adjusting roller. The uniform air duct is arranged in a segmented mode, after air of the draught fan enters the uniform air duct, uneven air can pass through the mixing roller in the mixing section, then the air force becomes uniform, meanwhile, the air pressure can be effectively improved in cooperation with the hole shrinkage arrangement of the air outlet section, and the air pressure can be further improved in cooperation with the arrangement of the eccentric roller.

Description

Technical Field

[0001] The utility model relates to the field of airflow web-forming equipment, in particular to a uniform air blowing mechanism for an airflow web-forming machine. Background Art

[0002] Airflow forming is a process that uses airflow to separate the combed fibers from the combing components to form a fiber web. The basic method is to use airflow to peel off the combed fibers under the centrifugal force of the combing components (blowing, sucking, or both), so that the dispersed single fibers pass through an air duct, diffuse and slow down due to airflow, and gradually settle on a roller or mesh curtain with small holes to form a fiber web. The characteristics are that the fibers in the fiber web are randomly arranged, the mechanical properties of the fiber web in all directions are relatively close, the thickness of the fiber web is easy to adjust, and the web laying process is omitted. There are many types of processable raw materials, including many raw materials that are not suitable for spinning on the carding machine, such as short fibers, metal fibers, glass fibers, duck feathers, goose feathers, wood fibers, straw, etc.

[0003] In the existing equipment, a general hair dryer is used. The problem with this hair dryer is that the wind force is uneven. At the same time, the width of the airflow net is several meters wide, which makes the wind force at the edge position seriously attenuated, and finally leads to uneven thickness of the formed product. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a uniform air blowing mechanism for an air-laying machine.

[0005] The technical solution of the utility model is: a uniform air blowing mechanism for an air-laid machine, comprising:

[0006] A fan, wherein a uniform air duct is arranged at the air outlet end of the fan, and the uniform air duct comprises:

[0007] An air inlet section, the air inlet section being connected to an air outlet end of the fan;

[0008] A mixing section, the mixing section is connected to the air inlet section, and a mixing roller is fixedly arranged in the mixing section, the mixing roller is arranged in at least two layers, and the mixing rollers between two adjacent layers are staggered and arranged; and

[0009] The air outlet section is connected with the mixing section, the air outlet section is arranged in an arc-shaped reduced diameter, an adjusting roller is eccentrically arranged at the air outlet of the air outlet section, and the adjusting roller blocks the air outlet.

[0010] Furthermore, the air inlet section includes a return air section, and the air from the fan enters the return air section and then enters the mixing section.

[0011] Furthermore, the air inlet section is 50 in length and 30 in height; the mixing section is 17 in length. The data here are only for proportional indication. The return air section is 33 in length.

[0012] Furthermore, the distance of the air outlet section after the diameter is reduced is 5. That is, it can be considered that the diameter is reduced from 17 to 5, and the air duct becomes smaller. When the wind pressure of the fan is 310, the wind pressure after the diameter is reduced reaches 550-560, which can effectively increase the pressure, and the wind force is stably output, and when the roller is tested in the axial direction, the wind force at each position is uniform.

[0013] Furthermore, the air outlet of the air outlet section is horizontally arranged, and the distance between them is 5, an eccentric roller is arranged on the lower side of the air outlet, and the distance between the upper side of the eccentric roller and the upper side of the air outlet is 2-5.

[0014] Furthermore, the diameter of the eccentric roller is 3.

[0015] Furthermore, the mixing rollers are arranged in three layers, and from bottom to top they are the first layer, the second layer and the third layer respectively, the first layer is arranged with two mixing rollers, the second layer is arranged with three mixing rollers, the third layer is arranged with two mixing rollers, and the two adjacent layers are staggered and crossed.

[0016] Furthermore, the diameter of the mixing roller is 3, the spacing between the three mixing rollers arranged in the second layer is 2, and the spacing between the two sides and the inner wall of the mixing section is 2, the first layer and the third layer are each provided with two mixing rollers, and the vertical height difference between the centers of the mixing rollers between two adjacent layers is 3.5. The distance here is only for illustration and does not represent the specific length. Generally speaking, when the mixing roller is purchased, its diameter is known and can be converted according to its actual length.

[0017] Furthermore, the eccentric roller is driven by an eccentric drive motor, which can generally be set by a servo motor.

[0018] The beneficial technical effect of the utility model is as follows: through the segmented setting of the uniform air duct, when the wind from the fan enters the uniform air duct, the uneven wind can become uniform after passing through the mixing roller in the mixing section. At the same time, the shrinking setting of the air outlet section can effectively increase the wind pressure. The setting of the eccentric roller can further increase the wind pressure. When the airflow web forming process of different materials is carried out, the appropriate wind pressure can be selected according to the state of the fiber, which provides a reliable guarantee for the airflow web forming process. At the same time, the uniform air duct designed in this application is better when applied to the multi-component airflow web forming of horsetail hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of a uniform air blowing mechanism for an air-laid machine.

[0020] Figure 2 is a schematic diagram of the mixing section.

[0021] in:

[0022] 5. Uniform air duct, 51. Air inlet section, 511. Return air section, 52. Mixing section, 53. Air outlet section, 54. Mixing roller, 55. Adjusting roller. DETAILED DESCRIPTION

[0023] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0024] See attached Figure 1-2 The uniform air blowing mechanism for the air-laid machine shown comprises:

[0025] A fan, wherein a uniform air duct 5 is arranged at the air outlet end of the fan, and the uniform air duct 5 comprises:

[0026] An air inlet section 51, wherein the air inlet section 51 is connected to an air outlet end of the fan;

[0027] A mixing section 52, wherein the mixing section 52 is connected to the air inlet section 51, and a mixing roller 54 is fixedly arranged in the mixing section 52, wherein the mixing roller 54 is arranged in at least two layers, and the mixing rollers 54 between two adjacent layers are staggered and arranged; and

[0028] The air outlet section 53 is connected with the mixing section 52, and the air outlet section 53 is arranged in an arc-shaped reduced diameter. An adjusting roller 55 is eccentrically arranged at the air outlet of the air outlet section 53, and the adjusting roller 55 blocks the air outlet.

[0029] Furthermore, the air inlet section 51 includes a return air portion 511 , and the air from the fan enters the return air portion 511 and then enters the mixing section 52 .

[0030] Furthermore, the air inlet section 51 has a length of 50 and a height of 30; the length of the mixing section 52 is 17. The data here are only for proportional indication. The length of the return air section 511 is 33.

[0031] Furthermore, the distance of the air outlet section 53 after the diameter is reduced is 5. That is, it can be considered that the diameter of 17 is reduced to 5, and the air duct becomes smaller. When the wind pressure of the fan is 310, the wind pressure after the diameter is reduced reaches 550-560, which can effectively increase the pressure, and the wind force is stably output, and when the roller is tested in the axial direction, the wind force at each position is uniform.

[0032] Furthermore, the air outlet of the air outlet section 53 is horizontally arranged, and the distance between them is 5, an eccentric roller is arranged on the lower side of the air outlet, and the distance between the upper side of the eccentric roller and the upper side of the air outlet is 2-5.

[0033] Furthermore, the diameter of the eccentric roller is 3.

[0034] Furthermore, the mixing rollers 54 are arranged in three layers, and are respectively the first layer, the second layer and the third layer from bottom to top. The first layer is provided with two mixing rollers 54, the second layer is provided with three mixing rollers 54, the third layer is provided with two mixing rollers 54, and the adjacent two layers are staggered and crossed.

[0035] Furthermore, the diameter of the mixing roller 54 is 3, the spacing between the three mixing rollers 54 arranged in the second layer is 2, and the spacing between the two sides and the inner wall of the mixing section 52 is 2, the first layer and the third layer are each provided with two mixing rollers 54, and the vertical height difference between the centers of the mixing rollers 54 between two adjacent layers is 3.5. The distance here is only for illustration and does not represent the specific length. Generally speaking, when the mixing roller 54 is purchased, its diameter is known and can be converted according to its actual length.

[0036] In this application, the uniform air duct may be designed in centimeters.

[0037] Furthermore, the eccentric roller is driven by an eccentric drive motor, which can generally be set by a servo motor.

[0038] By setting the uniform air duct 5 in sections, when the wind from the fan enters the uniform air duct 5, the uneven wind can be made uniform after passing through the mixing roller 54 in the mixing section 52. At the same time, the reduced diameter setting of the air outlet section 53 can effectively increase the wind pressure. The setting of the eccentric roller can further increase the wind pressure. When the airflow web forming process of different materials is carried out, the appropriate wind pressure can be selected according to the state of the fiber, which provides a reliable guarantee for the airflow web forming process. At the same time, the uniform air duct 5 designed in the present application is better when applied to the multi-component airflow web forming of horsetail hair.

[0039] The basic usage process is as follows:

[0040] The cotton box is used to transport materials, and these materials are mixed in various ways, such as horsetail hair, cotton, wool, chemical fiber, two-component fiber, etc., which are combined according to the set ratio;

[0041] The opening unit loosens the material to prevent it from agglomerating;

[0042] The blowing component blows the loosened material to the conveying curtain, where it is basically formed;

[0043] Then, the dust cage is squeezed to remove the internal air, and the material continues to be output, ensuring the quality of the molding.

[0044] During the blowing process of the blowing assembly, the use of the uniform blowing device of the present design can effectively improve the quality of the airflow web.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A uniform air blowing mechanism for an air-laid machine, characterized in that: include: A fan, wherein a uniform air duct (5) is arranged at the air outlet end of the fan, and the uniform air duct (5) comprises: An air inlet section (51), the air inlet section (51) being connected to an air outlet end of the fan; A mixing section (52), the mixing section (52) being connected to the air inlet section (51), and a mixing roller (54) being fixedly arranged in the mixing section (52), the mixing roller (54) being arranged in at least two layers, and the mixing rollers (54) between two adjacent layers being arranged in a staggered manner; and An air outlet section (53), the air outlet section (53) being connected to the mixing section (52), the air outlet section (53) being arranged in an arc-shaped reduced diameter, an adjusting roller (55) being eccentrically arranged at the air outlet of the air outlet section (53), and the adjusting roller (55) shielding the air outlet.

2. The uniform air blowing mechanism for an air-laid machine according to claim 1, characterized in that: The air inlet section (51) includes an air return portion (511), and the air from the fan enters the air return portion (511) and then enters the mixing section (52).

3. The uniform air blowing mechanism for an air-laid machine according to claim 2, characterized in that: The air inlet section (51) has a length of 50 and a height of 30; the mixing section (52) has a length of 17, and the return air section (511) has a length of 33.

4. The uniform air blowing mechanism for an air-laid machine according to claim 1, characterized in that: The distance of the air outlet section (53) after the diameter is reduced is 5.

5. The uniform air blowing mechanism for an air-laid machine according to claim 1, characterized in that: The air outlet of the air outlet section (53) is arranged horizontally, and the distance between them is 5, an eccentric roller is arranged on the lower side of the air outlet, and the distance between the upper side of the eccentric roller and the upper side of the air outlet is 2-5.

6. The uniform air blowing mechanism for an air-laid machine according to claim 5, characterized in that: The diameter of the eccentric roller is 3.

7. The uniform air blowing mechanism for an air-laid machine according to claim 1, characterized in that: The mixing rollers (54) are arranged in three layers, and are respectively a first layer, a second layer and a third layer from bottom to top; the first layer is provided with two mixing rollers (54); the second layer is provided with three mixing rollers (54); the third layer is provided with two mixing rollers (54); and adjacent two layers are staggered and cross-arranged.

8. The uniform air blowing mechanism for an air-laid machine according to claim 7, characterized in that: The diameter of the mixing roller (54) is 3, the spacing between the three mixing rollers (54) arranged on the second layer is 2, and the spacing between the two sides and the inner wall of the mixing section (52) is 2, two mixing rollers (54) are arranged on the first layer and the third layer, and the vertical height difference between the centers of the mixing rollers (54) between two adjacent layers is 3.

5.

9. The uniform air blowing mechanism for an air-laid machine according to claim 5, characterized in that: The eccentric roller is driven by an eccentric driving motor.

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