Layer paving and conveying device for fiber web layers

Abstract

The layer paving conveying device of the fiber web layer comprises an annular conveying belt, a pressing roller, a guiding pressing conveying belt, a cleaning rolling brush and an end adjusting mechanism, the conveying direction of the guiding pressing conveying belt and the conveying direction of the annular conveying belt intersect, and the guiding pressing conveying belt and the annular conveying belt oppositely convey the fiber web layer to the pressing roller; and the cleaning rolling brush and the compression roller rotate oppositely to brush and sweep the cellosilk embedded into the air holes. According to the utility model, on one hand, the probability of uneven thickness of a fiber web layer formed at the moment of entering the rolling is reduced by adopting the guiding of the progressive inlet channel; on the other hand, air is prevented from flowing towards the flattened fiber net layer based on air flow pressure relief of the air holes, the layer-by-layer flattening quality of the fiber net layer is further improved, meanwhile, the probability of residual cellosilk in the air holes is reduced based on brushing and sweeping of the roller brush, a good foundation is provided for air flow pressure relief in the rolling process, and in addition, the structure is simple, implementation is convenient, and practicability is high. And the height and / or angle adjustment is met based on the adjustment of the end part, so that the practicability of layer transmission is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to novel fiber and composite material preparation technical field, concretely relates to a kind of layer laying transmission device of fiber web layer. BACKGROUND

[0002] Currently, in the preparation process of felt, the production line is usually composed of pretreatment equipment, feeding equipment, needle punching equipment, heat setting equipment and edge cutting and coiling equipment, wherein the pretreatment equipment mainly carding fiber (such as pre-oxidized fiber) and then forming layer by layer fiber web, and then forming by needle punching of multiple fiber web layers, and finally performing sizing, edge cutting, coiling and other operations.

[0003] However, during the layering and feeding of the multiple-layer fiber web into the compression roller set, the following problems may occur due to the influence of bulkiness during the transmission process:

[0004] 1) Since the thickness of the instantaneously fed compression roller set cannot maintain gradual change, it is possible to cause uneven thickness of the fiber web layers (such as partial overlap) during the lamination process, which seriously affects the subsequent processing quality.

[0005] 2) The compression roller assembly used includes an annular transmission belt at the bottom and a compression roller above the annular transmission belt, wherein a flattening channel is formed between the compression roller and the annular transmission belt, and the fiber web layers are rolled during the relative movement of the two. However, during the rolling process, the relatively fluffy product must be flattened, and the porosity must be adjusted because gas is generated during the rolling process, and the direction of gas discharge is uncertain. If the gas flows towards the flattened fiber web layers, the rolling and flattening effect cannot be achieved. SUMMARY

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved layer laying transmission device for fiber web layers.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A layer laying transmission device for fiber web layers includes an annular transmission belt, a compression roller located on the annular transmission belt, and a hollow compression roller with air holes communicating with the inside in the circumferential direction. The layer laying transmission device further includes a guide pressure conveying belt arranged above the annular transmission belt, a cleaning roller brush for brushing the surface of the compression roller and the air hole area, an end adjustment mechanism arranged at the output end of the annular transmission belt and capable of adjusting up and down based on the output end, wherein the transmission directions of the guide pressure conveying belt and the annular transmission belt intersect and transmit the fiber web layers to the compression roller. The cleaning roller brush rotates towards the compression roller to brush out the fiber filaments embedded in the air holes.

[0009] Preferably, the guide pressure conveying belt is arranged obliquely upward and downward, and the angle formed between the guide pressure conveying belt and the annular conveying belt is an acute angle.

[0010] According to one specific implementation and preferred aspect of the present application, the lower end of the guide pressure conveying belt is arranged close to the compression roller, the distance from the bottom of the lower end of the guide pressure conveying belt to the annular conveying belt is d1, and the distance from the bottom of the compression roller to the annular conveying belt is d2, wherein d1≥d2. Here, the design is generally d1>d2, which can form a continuous decreasing and converging trend.

[0011] Preferably, the conveying surface of the guide pressure conveying belt is tangent to the compression roller, that is, the guide pressure conveying belt, the compression roller and the annular conveying belt form a material inlet channel with gradually decreasing material inlets. Thus, a gradually changing material feeding channel is formed.

[0012] According to another specific implementation and preferred aspect of the present application, the guide pressure conveying belt comprises an annular belt body, a belt wheel, and pressure strips distributed circumferentially around the annular belt body, wherein static elimination rods are formed on part of the pressure strips. Based on the stirring of the pressure strips, not only the probability of slipping is reduced, but also the layout of eliminating static is completed.

[0013] Preferably, the static elimination rod has multiple roots and is arranged on part of the pressure strips at equal intervals.

[0014] According to another specific implementation and preferred aspect of the present application, the cleaning roller brush is located directly above the compression roller; and the cleaning roller brush is a roller brush. Based on the brushing of the residual fiber filaments by the brush, the air permeability of the compression roller is improved.

[0015] Preferably, the cleaning roller brush is adjustably installed on the compression roller seat in an up-down direction. Based on the up-down position adjustment, the brushing force is changed.

[0016] In addition, the end adjusting mechanism comprises lifting legs on both sides for supporting on the ground, wherein the output angle and height of the annular conveying belt are changed based on the lifting of the lifting legs. Specifically, the lifting leg is a transmission screw structure, that is, the rotating disc drives the screw rod to change the supported height in the up-down direction.

[0017] Preferably, there are multiple groups of sliding groups on the opposite sides of the annular conveying belt, wherein the sliding groups form sliding supports of different heights. Here, the butt joint of the sliding groups of different heights is based on the actual installation and use needs.

[0018] Due to the implementation of the above technical scheme, the present application has the following advantages compared with the prior art:

[0019] In existing multi-layer fiber web lamination processes, the thickness of the web entering the pressure roller assembly cannot maintain a gradual change, potentially leading to uneven thickness (e.g., partial overlap) during lamination, severely impacting subsequent processing quality. Furthermore, the pressure roller assembly includes a ring conveyor belt at the bottom and pressure rollers above it, forming a flattening channel between them. The fiber web layers are rolled during their opposing movement. However, flattening a relatively loose product during rolling requires adjusting the porosity because gas is released during the process, and the direction of this gas release is unpredictable. If the gas flows towards the flattened fiber web layer, it fails to achieve the desired flattening effect. This invention addresses these shortcomings by comprehensively designing the structure of the fiber web layer lamination and conveying device, cleverly resolving these deficiencies. Using this lamination and conveying device, firstly… The progressive feeding channel formed by the guide belt and the annular conveyor belt ensures smooth and gradual feeding of the multi-layer fiber web. Then, the fed fiber web undergoes lamination via a pressing channel where the opposing movement of the pressure rollers and the annular conveyor belt rolls and pushes it forward. Simultaneously, during the rolling process, the air discharged during rolling is unloaded through the pressure rollers' own vents, completing the transfer. Therefore, this invention, on the one hand, uses a progressive feeding channel to reduce the probability of uneven fiber web thickness formed during the rolling process; on the other hand, the airflow depressurization through the vents prevents gas from flowing into the flattened fiber web, further improving the quality of the fiber web lamination and flattening. Simultaneously, the roller brush reduces the probability of residual fibers in the vents, providing a good foundation for airflow depressurization during rolling. Furthermore, the structure is simple, easy to implement, and the end adjustment allows for height and / or angle adjustments, enhancing the practicality of the layup transfer. Attached Figure Description

[0020] Figure 1 This is a schematic front view of the fiber web layer layup transport device in this embodiment;

[0021] Figure 2 for Figure 1 A schematic diagram of a partial structure;

[0022] Figure 3 for Figure 2 A top-down view;

[0023] Figure 4 for Figure 3 A schematic diagram of the AA-direction section;

[0024] Among them: 1. Circular conveyor belt;

[0025] 2. Pressure roller; 20. Ventilation holes;

[0026] 3. Guide belt; 30. Annular belt; 31. Pulley; 32. Pressure bar; 33. Static eliminator bar;

[0027] 4. A cleaning roller brush;

[0028] 5. An end adjustment mechanism; 50. A lifting leg;

[0029] 6. A sliding group. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0033] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0035] like Figures 1 to 4 As shown, the fiber web layer laying and conveying device of this embodiment includes an annular conveyor belt 1, a pressure roller 2 located on the annular conveyor belt 1, a guide pressure belt 3 disposed above the annular conveyor belt 1, a cleaning roller brush 4 for brushing the surface of the pressure roller 2, and an end adjustment mechanism 5 disposed at the output end of the annular conveyor belt 1 and capable of being adjusted up and down with reference to the output end.

[0036] Specifically, the annular conveyor belt 1 is a conventional annular rubber belt, assembled from pulleys, belt body, and mounting base. The pressure roller 2 is hollow inside and has vent holes 20 communicating with the interior in the circumferential direction. The vent holes 20 are relatively small, generally with a diameter not exceeding 3mm.

[0037] The guide belt 3 and the annular conveyor belt 1 intersect and move in opposite directions, conveying the fiber web to the pressure roller 2. The guide belt 3 is inclined vertically, forming an acute angle with the annular conveyor belt 1. Based on the gradually decreasing feed opening created by the angle, a gradual feeding process is achieved, reducing the rate of layer misalignment during feeding. The lower end of the guide belt 3 is positioned close to the pressure roller 2. The distance from the bottom of the lower end of the guide belt 3 to the annular conveyor belt 1 is d1, and the distance from the bottom of the pressure roller 2 to the annular conveyor belt 1 is d2, where d1 ≥ d2. Here, the design typically ensures d1 > d2, thus creating a continuously decreasing and converging trend.

[0038] The feeding surface of the guide belt 3 is tangent to the pressure roller 2, that is, the guide belt 3, the pressure roller 2, and the annular conveyor belt 1 constitute a feeding channel with a gradually decreasing inlet. This forms a progressively changing feeding channel.

[0039] In some embodiments, the guiding pressure belt 3 comprises a ring-shaped belt body 30, a belt wheel 31, and pressure strips 32 distributed circumferentially around the ring-shaped belt body 30, wherein static electricity elimination rods 33 are formed on some of the pressure strips 32. Based on the actuation of the pressure strips, not only the probability of slipping is reduced, but also the layout of eliminating static electricity is completed.

[0040] In this example, the static electricity elimination rods 33 have multiple roots and are arranged at equal intervals on some of the pressure strips 32.

[0041] The cleaning roller brush 4 is located directly above the pressure roller 2; the cleaning roller brush 4 is a roller brush. Based on the brush sweeping the residual fiber filaments, the air permeability of the pressure roller is improved. The cleaning roller brush 4 is adjustably installed on the pressure roller seat in up and down directions. Based on the up and down position adjustment, the brushing force is changed. The cleaning roller brush 4 and the pressure roller 2 rotate towards each other to sweep out the fiber filaments embedded in the air permeable holes 20.

[0042] The end adjustment mechanism 5 comprises lifting legs 50 on both sides for supporting on the ground, wherein the output angle and height of the ring-shaped conveying belt 1 are changed based on the lifting of each lifting leg 50. Specifically, the lifting leg 50 is a transmission screw structure, that is, a rotating wheel disc drives the screw rod to change the supported height in the up and down directions.

[0043] In addition, on the opposite sides of the ring-shaped conveying belt 1, there are also multiple groups of sliding groups 6, wherein the sliding groups 6 form sliding supports of different heights. Here, based on the butt joint of the sliding groups 6 of different heights, in this example, the sliding groups 6 are rollers and displacement rollers to meet the use needs of actual installation.

[0044] In summary, after adopting the layer paving transmission device, firstly, the gradual feeding channel formed by the guide pressure conveying belt and the ring-shaped conveying belt enables the multi-layer fiber web layer to be fed stably and gradually; then, the fiber web layer after feeding is rolled and pushed forward by the opposite movement of the pressure roller and the ring-shaped conveying belt, and at the same time, the gas discharged in the rolling process is unloaded through the air holes of the pressure roller, so as to complete the transmission. Therefore, on the one hand, the guide of the gradual feeding channel is adopted to reduce the probability of uneven thickness of the fiber web layer formed in the rolling process; on the other hand, the air flow pressure relief based on the air holes avoids the air flow to the flattened fiber web layer, further improves the quality of the fiber web layer, and reduces the probability of residual fiber filaments in the air holes based on the roller brush sweeping, thereby providing a good basis for the air flow pressure relief in the rolling process. In addition, the structure is simple and convenient to implement, and the height and / or angle adjustment based on the end part is adopted to enhance the practicability of the layer paving transmission. Thirdly, the gradually smaller material port formed based on the angle gradually changes the feeding, reduces the layering disorder rate in the feeding, and the lower end of the guide pressure conveying belt is arranged close to the pressure roller, the distance from the bottom of the lower end of the guide pressure conveying belt to the ring-shaped conveying belt is d1, and the distance from the bottom of the pressure roller to the ring-shaped conveying belt is d2, wherein d1≥d2. Here, d1>d2 is generally designed, so that the gradually smaller and converging trend can be formed. Fourthly, the conveying surface of the guide pressure conveying belt is tangent to the pressure roller, that is, the guide pressure conveying belt, the pressure roller and the ring-shaped conveying belt form a gradually smaller feeding channel of the material port. Thus, the gradually changing feeding channel is formed. Fifthly, the pressure strip is based on the stirring, which not only reduces the probability of slipping, but also eliminates the static electricity layout. At the same time, the cleaning roller brush is located directly above the pressure roller. The cleaning roller brush is a roller brush, which sweeps the residual fiber filaments based on the brush, thereby improving the air permeability of the pressure roller. In addition, the up-down position is adjusted to change the brushing force. Sixthly, the lifting legs are in the transmission screw structure, that is, the rotating wheel disc drives the screw rod to change the height supported in the up-down direction, and the sliding groups of different heights are connected to meet the actual installation and use needs.

[0045] The utility model has been described in detail above, the purpose lies in enabling the person who is familiar with this field technology to understand the content of the utility model and to implement, and cannot limit the protection scope of the utility model with this, all equivalent changes or modifications according to the spirit of the utility model should be covered in the protection scope of the utility model.

Claims

1. A layer laydown device for a fibrous web layer comprising an endless belt, a compression roller positioned on the endless belt, characterized in that: The compression roller is hollow inside and is provided with air-permeable holes in the circumferential direction and in communication with the inside; the layer transmission device further comprises a guide compression belt arranged above the annular transmission belt, a cleaning roller brush for brushing the surface of the compression roller and the air-permeable hole area, and an end adjusting mechanism arranged at the output end of the annular transmission belt and capable of being adjusted up and down based on the output end, wherein the transmission directions of the guide compression belt and the annular transmission belt intersect and face each other to transmit the fiber web layer to the compression roller; the cleaning roller brush rotates in the opposite direction of the compression roller to brush the fiber filaments embedded in the air-permeable holes out.

2. The layer laydown transport of fibrous web layers of claim 1, characterized in that: The guide compression belt is arranged obliquely up and down, and the angle formed with the annular transmission belt is an acute angle.

3. The layer laydown transport of fibrous web layers of claim 2, characterized by: The lower end of the guide compression belt is arranged close to the compression roller, the distance from the bottom of the lower end of the guide compression belt to the annular transmission belt is d1, and the distance from the bottom of the compression roller to the annular transmission belt is d2, wherein d1≥d2, and the belt surface of the guide compression belt is tangent to the compression roller.

4. The layer laydown transport of fibrous web layers of claim 3, characterized in that: The guide compression belt, the compression roller and the annular transmission belt form a material inlet channel with a gradually decreasing inlet.

5. The layer-paving transfer device of any one of claims 1 to 4, wherein: The guide compression belt comprises an annular belt body, a belt wheel, and compression strips distributed circumferentially around the annular belt body, wherein static elimination rods are formed on part of the compression strips.

6. The layer laydown transport of fibrous web layers of claim 5, characterized in that: The static elimination rods have multiple roots and are arranged on part of the compression strips at equal intervals.

7. The apparatus of claim 1, wherein: The cleaning roller brush is located directly above the compression roller; and / or, the cleaning roller brush is a roller brush.

8. The layer-paving transfer device of claim 1 or 7, wherein: The cleaning roller brush is adjustably mounted on the compression roller seat up and down.

9. The apparatus of claim 1, wherein: The end adjusting mechanism comprises lifting legs arranged on both sides for supporting on the ground, wherein the output angle and height of the annular transmission belt are changed based on the lifting of each lifting leg.

10. The apparatus of claim 1, wherein: There are multiple groups of sliding groups on the opposite sides of the annular transmission belt, wherein the sliding groups form sliding supports of different heights.

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