Novel lapper

Abstract

The utility model relates to non -woven production equipment technical field, especially a novel net -laying machine, the utility model discloses a conveying roller way set up on the bed body, the conveying roller way includes the front guide device of setting up the front end of the bed body, the rear guide device of the rear end of the bed body, the driven roller device of the oblique lower side of the rear end of the bed body and the reversing roller and the tensioning roller below the front part of the bed body, is laid with the mesh belt on the conveying roller way, the front guide device and the rear guide device form the flat net net -laying area between, the rear guide device and the driven roller device form the inclined net net -laying area between, the lower bed body of flat net net -laying area is provided with flat net suction air flue A, flat net suction air flue B and flat net small fan suction air flue from front to back in proper order, the upper portion of the rear end of flat net net -laying area is provided with flat net silk setting device, the inboard bed body of inclined net net -laying area is provided with inclined net suction air flue and inclined air flue, and the upper portion of inclined net net -laying area is provided with inclined net silk setting device.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric production equipment technology, and in particular to a novel web-laying machine. Background Technology

[0002] In the manufacturing process of spunbond nonwoven fabrics, polymers are melt-extruded, cooled, and solidified to form nascent fibers. These nascent fibers are then drawn, filament-layed, and uniformly laid on a web-laying machine. The web-laying condition largely determines the quality of the nonwoven fabric. Currently, there are two main web-laying methods: flat web laying and oblique web laying. Flat web laying involves laying the fibers directly on a flat surface after filament-laying, with the fiber receiving surface on the web-laying machine parallel to the ground. This method produces products with high strength per unit area but a low ratio of longitudinal to transverse strength. Glass fibers or mesh fabrics can be added during the web-laying process to further improve the product's strength. The disadvantage of flat web laying is poor consistency in the width direction. Oblique web laying involves the fiber receiving surface on the web-laying machine at an angle to the ground, resulting in better consistency in the width direction, but lower strength per unit area and a higher ratio of longitudinal to transverse strength. Currently, most web-laying machines on the market use only one of these methods and cannot simultaneously achieve both product uniformity and a high ratio of longitudinal to transverse strength.

[0003] In view of the problems existing in the above-mentioned existing technologies, it is necessary to research and design a new type of net laying machine to overcome the problems existing in the existing technologies. Summary of the Invention

[0004] To address the technical problems of existing technologies where both flat and oblique mesh laying have their own advantages and disadvantages, this invention provides a novel mesh laying machine. This invention primarily employs a combination of flat and oblique mesh laying, which can improve the uniformity of the product in the width direction and adjust the longitudinal and transverse strength ratio.

[0005] The technical means adopted in this utility model are as follows: A novel web-laying machine includes a conveyor roller conveyor mounted on the bed; Furthermore, the conveyor roller conveyor includes a front guide device located at the front end of the bed, a rear guide device located at the rear end of the bed, a drive roller device located obliquely below the rear end of the bed, and a reversing roller and a tension roller located below the front part of the bed. Furthermore, a mesh belt is laid on the conveyor roller table; a flat mesh laying area is formed between the front guide device and the rear guide device; and an inclined mesh laying area is formed between the rear guide device and the drive roller device. Furthermore, the bed frame below the flat netting area is equipped with flat netting suction duct A, flat netting suction duct B, and flat netting small fan suction duct in sequence from front to back; Furthermore, a flat net swaying device is installed at the upper rear end of the flat net laying area; Furthermore, inclined mesh suction ducts and inclined air ducts are provided on the side bed within the inclined mesh laying area; Furthermore, an inclined wire swaying device is installed above the inclined wire laying area.

[0006] Furthermore, a rear guide pre-compression roller is provided on the upper part of the rear guide device to pre-compress the multi-layer fiber web that enters the flat web laying area from the inclined web laying area.

[0007] Furthermore, a flat net wire-swinging device can be added to the upper middle part of the flat net laying area.

[0008] Furthermore, one or more fans are configured in the air intake duct of the flat mesh small fan along the direction of the mesh belt / width direction.

[0009] Furthermore, the suction duct of the flat net fan is replaced by the flat net suction duct C, which is installed at the rear of the bed below the flat net laying area.

[0010] Furthermore, a water spraying device is installed in the upper middle part of the flat netting area.

[0011] Furthermore, a support roller is provided in the middle of the upper part of the bed; Furthermore, a front guide preload roller is provided on the upper part of the support roller.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The novel net laying machine provided by this utility model combines the flat net laying area and the oblique net laying area on the same equipment, thereby achieving high strength per unit area of ​​product, large longitudinal and transverse strength ratio, and good product consistency in the width direction.

[0013] 2. The novel web-laying machine provided by this utility model is equipped with a rear guide pre-pressure roller, which provides a stable conveying force for the fiber and prevents the fiber from breaking or being stretched and deformed due to uneven tension in a free state.

[0014] 3. The novel web laying machine provided by this utility model is equipped with a water spraying device to reduce the static electricity on the fiber web, stabilize the fiber web, and improve the uniformity of web laying.

[0015] 4. The new type of web laying machine provided by this utility model has a flat web swaying device added to the middle of the flat web laying area, which improves the uniformity of the fiber web and reduces cloudiness.

[0016] In summary, the technical solution of this utility model solves the problem that both flat mesh laying and diagonal mesh laying have their own advantages and disadvantages in the existing technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of Embodiment 2 of the present invention; Figure 3 This is a schematic diagram of Embodiment 3 of the present invention; Figure 4 This is a schematic diagram of embodiment 4 of the present utility model; Figure 5 This is a schematic diagram of embodiment 5 of the present utility model; Figure 6 This is a schematic diagram of Embodiment 6 of the present invention.

[0019] In the diagram: 1. Front guide device; 2. Mesh belt; 3. Flat mesh suction duct A; 4. Flat mesh suction duct B; 5. Flat mesh small fan suction duct; 6. Inclined air duct; 7. Rear guide device; 8. Inclined mesh wire swinging device; 9. Active roller device; 10. Inclined mesh suction duct; 11. Flat mesh wire swinging device; 12. Rear guide pre-pressure roller; 13. Front guide pre-pressure roller; 14. Flat mesh suction duct C; 15. Water spray device; 16. Support roller. Detailed Implementation

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0024] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0027] Example 1 like Figure 1 As shown, this utility model provides a novel web laying machine including a conveyor roller conveyor mounted on the bed; the conveyor roller conveyor includes a front guide device 1 at the front end of the bed, a rear guide device 7 at the rear end of the bed, an active roller device 9 at the lower rear end of the bed, and a reversing roller and a tensioning roller at the lower front of the bed; a web belt 2 is laid on the conveyor roller conveyor; a flat web laying area is formed between the front guide device 1 and the rear guide device 7; an inclined web laying area is formed between the rear guide device 7 and the active roller device 9; a flat web suction duct A3, a flat web suction duct B4, and a flat web small fan suction duct 5 are arranged sequentially from front to back on the bed below the flat web laying area; a flat web swaying device 11 is arranged at the upper rear end of the flat web laying area; an inclined web suction duct 10 and an inclined air duct 6 are arranged on the bed inside the inclined web laying area; and an inclined web swaying device 8 is arranged at the upper part of the inclined web laying area.

[0028] After the fibers are dispersed by the filament-splitting device, they are first adsorbed onto the mesh belt through the inclined mesh air duct. The fibers consist of two rows of filaments (more than one row) and form a multi-layered fiber web during the inclined mesh laying process. Through the transmission of the mesh belt, they are guided into the flat mesh laying area. The flat mesh suction air duct makes the fiber web evenly laid and prevents it from turning over. The fibers in the flat mesh area consist of one row of filaments. After the flat mesh laying process, they pass through the front guide device and then enter the consolidation device.

[0029] Example 2 like Figure 2 As shown, (based on Embodiment 1) this utility model also provides a novel net-laying machine. The upper part of the rear guide device 7 is provided with a rear guide pre-compression roller 12, which is used to pre-compress the multi-layer fiber web that enters the flat web laying area from the inclined web laying area.

[0030] Example 3 like Figure 3 As shown, (based on Embodiment 1,) this utility model also provides a new type of net laying machine; a flat net swaying device 11 can be added to the upper middle part of the flat net laying area.

[0031] Adding a flat web swaying device can address the slight unevenness that may exist in the thin fiber web output from the previous swaying device. Through multi-layer cross-laying, the uneven points are randomly distributed to different positions and layers, achieving a uniform effect, reducing the probability of "cloud spots" appearing in the product, and improving product uniformity.

[0032] Example 4 like Figure 4 As shown, (based on Embodiment 1) this utility model also provides a new type of web laying machine; the flat web suction duct B4 and the flat web suction duct C14 are connected to the web suction fan; the flat web suction duct B3 is directly connected to the air duct of the web laying machine, and the fiber web is laid evenly through the flat web suction duct, making it less prone to flipping. After the flat web is laid, the front guide device drives the front support arm to move the guide roller back and forth and up and down, and connects with the consolidation device.

[0033] Example 5 like Figure 5 As shown, (based on Embodiment 1) this utility model also provides a novel net-laying machine. A water spraying device 15 is installed at the upper middle part of the flat netting area.

[0034] The flat spray water device is installed in front of the mesh suction duct 2 to prevent static electricity. The flat mesh suction duct makes the fiber mesh spread evenly and prevents it from flipping. After the flat mesh is spread, the front guide device causes the front support arm to drive the guide roller to move back and forth and up and down. Fiberglass, mesh cloth or other cloth can be added into the fiber mesh and connected with the consolidation device.

[0035] Example 6 like Figure 6 As shown, (based on Embodiment 1) this utility model also provides a novel web laying machine; a support roller 16 is provided in the middle of the upper part of the bed; a front guide pre-compression roller 13 is provided on the upper part of the support roller 16. After the fiber web passes through the front guide pre-compression roller, the front guide device causes the front support arm to drive the guide roller to move back and forth and up and down, allowing glass fiber, mesh cloth or other cloth to be added into the fiber web and connected with the bonding device.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel net-laying machine, characterized in that: The novel web-laying machine includes a conveyor roller conveyor mounted on the bed; The conveyor roller conveyor includes a front guide device (1) located at the front end of the bed, a rear guide device (7) located at the rear end of the bed, an active roller device (9) located at the lower rear end of the bed, and a reversing roller and a tensioning roller located at the lower front of the bed. The conveyor roller conveyor is covered with a mesh belt (2); a flat mesh laying area is formed between the front guide device (1) and the rear guide device (7); an inclined mesh laying area is formed between the rear guide device (7) and the drive roller device (9); The flat mesh laying area is provided with flat mesh suction duct A (3), flat mesh suction duct B (4) and flat mesh small fan suction duct (5) in sequence from front to back on the bed frame below the flat mesh laying area. A flat net swaying device (11) is provided at the upper rear end of the flat net laying area. The inclined mesh laying area is provided with an inclined mesh suction duct (10) and an inclined air duct (6) on the side of the bed. An inclined wire swaying device (8) is provided at the upper part of the inclined wire laying area.

2. The novel net-laying machine according to claim 1, characterized in that: The upper part of the rear guide device (7) is provided with a rear guide pre-compression roller (12) for pre-compressing the multi-layer fiber web that enters the flat web area from the inclined web laying area.

3. The novel net-laying machine according to claim 1, characterized in that: A flat net wire swaying device (11) can be added to the upper middle part of the flat net laying area.

4. The novel net-laying machine according to claim 1, characterized in that: The flat mesh small fan suction duct (5) is configured with one or more fans along the direction of the mesh belt (2) / width direction.

5. The novel net-laying machine according to claim 1, characterized in that: The flat net small fan suction duct (5) is replaced by the flat net suction duct C (14), which is installed at the rear of the bed below the flat net laying area.

6. The novel net-laying machine according to claim 1, characterized in that: A water spraying device (15) is installed at the upper middle part of the flat netting area.

7. The novel net-laying machine according to claim 1, characterized in that: A support roller (16) is provided in the middle of the upper part of the bed. The upper part of the support roller (16) is provided with a front guide preload roller (13).

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