Valve and gram weight detection cooperation adjusting system

Abstract

The utility model discloses a valve and gram weight detection matching adjusting system, and relates to the technical field of non-woven fabric manufacturing equipment, in particular to the valve and gram weight detection matching adjusting system. The device comprises a distributor, a forming head, a lapping machine and a consolidation device, the lower part of the distributor is provided with a valve at the front end of the forming head; a gram weight detection device is arranged at the tail end of the lapping machine; and the gram weight detection device is electrically connected with the valve and is simultaneously connected with an external control system to form linkage. According to the technical scheme, the problem that in the prior art, sampling detection is manually observed through naked eyes, online monitoring is not achieved, then fibers are carded by adjusting airflow, and the situation that the fibers are scattered unevenly occurs is solved.

Description

Technical Field

[0001] The utility model discloses a valve and a gram weight detection coordination adjustment system, which relates to the technical field of nonwoven fabric manufacturing equipment, and in particular to a valve and a gram weight detection coordination adjustment system. Background Art

[0002] In the manufacturing process of spunbond nonwoven fabrics, the most important physical indicator for measuring the quality of spunbond nonwoven fabrics is the uniformity of the fabric surface weight. The uniformity of the fabric surface directly affects the quality indicators such as the uniformity of product strength, elongation and heat shrinkage. The product used in this system is a composite structure nonwoven fabric. The fiber layer is compositely formed by a consolidation device. Therefore, the fiber content plays a key role in the overall weight of the fabric surface. The existing technology for adjusting the uniformity of composite structure web formation mainly focuses on the optimization of the airflow web forming device. The fibers are combed by the airflow web forming machine. However, in the actual production process, uneven dispersion often occurs. There is no better method to improve this. In most cases, the production personnel observe the presence of grooves on the fabric surface with the naked eye or take the fabric sample for inspection after winding to find that the uniformity is not good. It cannot be adjusted online, which is easy to affect the uniformity and strength of the fabric surface, resulting in a decline in product quality. At the same time, it increases the loss of manpower, material resources, waste products, etc. in the production process, and increases production costs.

[0003] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new valve and gram weight detection and adjustment system to overcome the problems existing in the prior art. Summary of the invention

[0004] According to the technical problem that the fibers are unevenly scattered due to manual visual observation and sampling detection proposed in the above-mentioned prior art without online monitoring, and then the fibers are combed by adjusting the airflow, a valve and gram weight detection coordination adjustment system is provided. The utility model mainly adds electric / pneumatic valves and interlocking systems in the equipment in different areas. The system monitors the fiber content in each sub-area. When the set range is not met, it automatically feeds back to the valve in the corresponding area, adjusts the fiber channel area through the automatic / pneumatic valve, and then adjusts the airflow speed. When the airflow speed increases, the dynamic pressure in the system increases, the static pressure decreases, and the fibers fall in the direction of low pressure, which plays a role in adjusting the fiber distribution and solves the problem of uneven weight of the product surface caused by uneven fiber distribution.

[0005] The technical means adopted by the utility model are as follows:

[0006] A valve and gram weight detection coordination adjustment system, comprising: a distributor, a forming head, a web laying machine and a consolidation device;

[0007] Further, a valve is provided at the lower part of the distributor at the front end of the forming head;

[0008] Furthermore, a gram weight detection device is provided at the end of the web laying machine;

[0009] Furthermore, the gram weight detection device is electrically connected to the valve, and is simultaneously connected to an external control system to form a linkage.

[0010] Furthermore, the number of dispensers can be multiple and evenly distributed in the width direction of the product.

[0011] Furthermore, the valve is an electric valve or a pneumatic valve.

[0012] Furthermore, the gram weight detection device performs gram weight detection on different areas at the end of the web laying machine.

[0013] Furthermore, the gram weight detection device feeds back detection information, and adjusts the fiber distribution by adjusting the opening and closing of the valve through the control system, thereby adjusting the gram weight of the fiber web.

[0014] Furthermore, the gram weight detection device feeds back the detection information, and adjusts the valve through the control system to change the channel size in the distributor, thereby improving the dynamic and static pressure in the system, and then adjusting the fiber falling direction to achieve the adjustment of the gram weight of the fiber web.

[0015] The working process of the utility model is:

[0016] The crushed fibers enter the mixing area under the action of airflow, and enter the forming head after the fiber weight is automatically measured by the distributor. The fibers are guided to the fiber layer on the web laying machine under the action of hot airflow, and the gram weight detection device detects the gram weight of the fiber web layer in different areas. The whole system is closed-loop controlled and monitors the gram weight of the fiber web in real time. The gram weight detection results of each area are analyzed and fed back to the distributor system. When the feedback result deviates from the set range, the automatic valve will adjust the size of the cellulose airflow delivery channel, the channel area will be reduced, and the airflow speed will be increased, thereby increasing the dynamic pressure inside the system and reducing the static pressure. The cellulose falls in the direction of smaller static pressure to ensure stable and uniform gram weight.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The valve and weight detection coordination adjustment system provided by the utility model realizes online feedback and adjustment of product weight through the coordination of the online weight detection device and the electric or pneumatic valve;

[0019] 2. The valve provided by the utility model cooperates with the gram weight detection and adjustment system. The automatic valve adjusts the size of the fiber air flow channel to change the dynamic and static pressure in the system to keep the gram weight uniform and stable without the need to set up additional adjustment equipment.

[0020] In summary, the technical solution of the utility model solves the problem in the prior art of sampling and testing by manual visual observation without online monitoring, and then combing the fibers by adjusting the airflow, which also causes uneven fiber dispersion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is the process flow chart of the utility model.

[0024] In the figure: 1, distributor 2, valve 3, forming head 4, web laying machine 5, gram weight detection device 6, consolidation device. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0029] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0032] like Figure 1 As shown, the utility model provides a valve and gram weight detection coordination adjustment system, including: a distributor 1, a forming head 3, a web laying machine 4 and a consolidation device 6;

[0033] A valve 2 is provided at the front end of the forming head 3 at the lower part of the distributor 1; a gram weight detection device 5 is provided at the end of the web laying machine 4; the gram weight detection device 5 is electrically connected to the valve 2 and is also connected to an external control system to form a linkage.

[0034] There can be multiple distributors 1, evenly distributed in the width direction of the product.

[0035] The valve 2 is an electric valve or a pneumatic valve.

[0036] The gram weight detection device 5 performs gram weight detection on the end of the web laying machine 4 in different areas.

[0037] The gram weight detection device 5 feeds back the detection information, and adjusts the fiber distribution by adjusting the opening and closing of the valve 2 through the control system, thereby adjusting the gram weight of the fiber web.

[0038] The gram weight detection device 5 feeds back the detection information, and adjusts the valve 2 through the control system to change the channel size in the distributor 1, improve the dynamic and static pressure in the system, and then adjust the fiber falling direction to achieve the adjustment of the gram weight of the fiber web.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A valve and weight detection coordination adjustment system, comprising: Distributor (1), forming head (3), web laying machine (4) and consolidation device (6); characterized in that: The lower part of the distributor (1) is located at the front end of the molding head (3) and is provided with a valve (2); A weight detection device (5) is provided at the end of the web laying machine (4); The gram weight detection device (5) is electrically connected to the valve (2) and is also connected to an external control system to form a linkage.

2. The valve and weight detection and adjustment system according to claim 1, characterized in that: The number of the distributors (1) can be multiple and evenly distributed in the width direction of the product.

3. The valve and weight detection and adjustment system according to claim 1, characterized in that: The valve (2) is an electric valve or a pneumatic valve.

4. The valve and weight detection and adjustment system according to claim 1, characterized in that: The gram weight detection device (5) performs gram weight detection on the end of the web laying machine (4) in different areas.

5. The valve and weight detection and adjustment system according to claim 1, characterized in that: The gram weight detection device (5) feeds back detection information, and adjusts the fiber distribution by adjusting the opening and closing of the valve (2) through the control system, thereby adjusting the gram weight of the fiber web.

6. The valve and weight detection and adjustment system according to claim 1, characterized in that: The gram weight detection device (5) feeds back detection information, and adjusts the valve (2) through the control system to change the size of the channel in the distributor (1), thereby improving the dynamic and static pressure in the system, and then adjusting the fiber falling direction to achieve the adjustment of the gram weight of the fiber web.

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