Process air suction system of spinning frame

Abstract

The invention provides a process air suction system of a spinning frame. The process air suction system comprises a spinning frame tail air box, air suction branch pipes, an air suction header pipe and a dust filtering unit. One end of each air suction branch pipe is communicated with the spinning machine tail air box, the other end of each air suction branch pipe is communicated with the air suction header pipe, and the dust filter unit is communicated with at least two air suction branch pipes through the air suction header pipe; wherein a cotton suction air pipe is connected to the spinning frame tail air box. One dust filtering unit can be communicated with tail air boxes of multiple spinning machines through the air suction header pipe and the air suction branch pipes, the function of collecting waste cotton of the tail air boxes of the multiple spinning machines can be achieved only through one dust filtering unit, knitters do not need to regularly remove the cotton in the air boxes, the air suction pressure and the air volume are stable, manpower is saved, and the production efficiency is improved. And the energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a spinning frame process suction system. Background Art

[0002] The main function of the spinning frame process suction system is to suck away the cotton bundles that are not in the spinning state and are drawn out by the front rollers and the front leather rollers of the spinning frame at any time during the spinning of the spinning frame, such as the cotton bundles that are ready to be spun or the cotton bundles that are broken in spinning. It can reduce the phenomenon of winding around the leather rollers and the rollers, and is also necessary to ensure the success of the spinning frame joint. The traditional spinning frame process suction system is divided into two sections of suction, one section is the spinning frame's own cotton suction fan, and the other section is the process return air fan, and finally the process suction air is sent back to the air-conditioning room.

[0003] The process suction system includes the suction device of the spinning frame, which consists of a cotton suction flute, a cotton suction duct, a cotton suction box located at the rear of the machine, a cotton filter net, and a cotton suction fan. As the suction airflow flows, part of the cotton is intercepted by the filter net, and the filtered airflow is discharged to the ditch of the spinning workshop by the cotton suction fan, and then sucked away by the return air fan and sent to the air-conditioning room for reuse. During the production process of the spinning frame, there will be spindle breakage, and the broken cotton bundles will be adsorbed on the filter cotton net. As time goes by, the cotton on the filter cotton net continues to thicken, causing the wind resistance of the filter net to increase, resulting in a gradual decrease in the negative pressure of the suction. When the negative pressure of the suction is too low, the broken cotton bundles will not be sucked away and will be entangled with the rollers and leather rollers. Therefore, the car stopper should regularly clean the bellows during the production process. Moreover, when the bellows are emptied, the suction pressure at the farthest end of the head reaches more than 800Pa, and when the bellows reaches a certain thickness, the suction pressure at the head will be lower than 500Pa. The wind pressure in the production process of the spinning frame is unstable, and the negative pressure that can meet the suction needs is more than 500Pa. In order to reduce the number of times the workers need to clean the bellows, the designers of the spinning frame generally configure a larger fan power. If the normal suction negative pressure is 500Pa, a 4Kw fan is required. If the designer wants to design the negative pressure at the head of the machine to be 800Pa, a 7.5Kw fan is required, which will increase the energy consumption accordingly. There are more spinning machines, and more fans. In addition, a high-power return air fan is required to send the suction air discharged by the spinning frame into the air-conditioned room for reuse, which consumes more power.

[0004] Therefore, the art needs a spinning machine process suction system that has stable system suction pressure and air volume, does not require a worker to regularly remove bellows waste, and can effectively reduce energy consumption. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a spinning frame process suction system which has stable system suction pressure and air volume, does not require a worker to regularly remove bellows waste, and can effectively reduce energy consumption.

[0006] The present invention provides a spinning frame process suction system, comprising a spinning machine tail bellows, a suction branch pipe, a suction main pipe and a dust filtering unit; one end of the suction branch pipe is connected to the spinning machine tail bellows, and the other end is connected to the suction main pipe, and the dust filtering unit is connected to at least two of the suction branch pipes through the suction main pipe; wherein the spinning machine tail bellows is connected to a cotton suction duct.

[0007] Furthermore, one suction main pipe is connected to at least two suction branch pipes, and one dust filtering unit is connected to at least two suction main pipes.

[0008] Furthermore, one of the air suction main pipes is connected to four of the air suction branch pipes, and one dust filtering unit is connected to three of the air suction main pipes.

[0009] Furthermore, the dust filtering unit includes a centrifugal fan and a cotton continuous collecting device which are sequentially arranged along the airflow direction.

[0010] Furthermore, the dust filtering unit also includes a distribution box, and the distribution box is electrically connected to the centrifugal fan and the cotton continuous collection device.

[0011] Furthermore, the cotton continuous collecting device comprises a filter disc, a suction arm fan device, a fiber presser and a cotton bag.

[0012] Furthermore, a gate valve is provided at the position where the suction branch pipe is connected to the spinning machine tail wind box.

[0013] Furthermore, the air outlet of the dust filtering unit is connected to the air conditioning room.

[0014] Furthermore, a cotton suction fan is arranged in the spinning loom tail wind box, and the spinning loom tail wind box is connected with the return air fan through a trench.

[0015] Furthermore, an air outlet baffle is provided between the spinning machine tail wind box and the ditch.

[0016] Compared with the prior art, the present invention has the following beneficial effects: one dust filtering unit in the present invention can be connected with the tail bellows of multiple spinning machines through the suction main pipe and the suction branch pipe, and only one dust filtering unit is used to provide process suction for multiple spinning machines, and broken cotton bundles can be continuously collected, without the need for the machine operator to regularly remove the bellows flowers, and the suction pressure and air volume are stable, which saves manpower and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic structural diagram of a spinning frame process suction system according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic structural diagram of a tail wind box of a spinning machine according to an embodiment of the present invention;

[0020] Figure 3 The present invention is a structural schematic diagram of a spinning frame process suction system in the prior art.

[0021] The accompanying drawings are marked as:

[0022] 1: spinning locomotive tail bellows; 2: suction branch pipe; 21: gate valve; 3: suction main pipe; 4: dust filter unit; 5: cotton suction air duct; 6: exhaust port baffle; 7: trench; 8: return air fan; 9: cotton suction fan. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1 and Figure 2 As shown, the embodiment of the present invention provides a spinning machine process suction system, including: a spinning machine tail wind box 1, a suction branch pipe 2, a suction main pipe 3 and a dust filter unit 4; one end of the suction branch pipe 2 is connected to the spinning machine tail wind box 1, and the other end is connected to the suction main pipe 3, and the dust filter unit 4 is connected to the suction branch pipe 2 through the suction main pipe 3; the spinning machine tail wind box 1 is connected with a cotton suction air duct 5. Driven by the dust filter unit 4, the air with the return cotton enters the dust filter unit 4 through the cotton suction air duct 5, the spinning machine tail wind box 1, the suction branch pipe 2 and the suction main pipe 3 in sequence. The dust filter unit 4 has a centrifugal fan and a cotton continuous collection device arranged in sequence along the air flow direction, the centrifugal fan provides the driving force of the air flow, and the cotton continuous collection device is used to filter and automatically collect the return cotton. The use of the dust filter unit 4 replaces the double fan technical solution in the prior art where the return air fan 8 and the cotton suction fan 9 are jointly driven, which has the effect of saving energy and labor. Preferably, a main suction pipe 3 is connected to at least two suction branch pipes 2, and a dust filtering unit 4 is connected to at least two main suction pipes 3, which is conducive to improving the working efficiency of the dust filtering unit 4 and further achieving the effect of energy saving.

[0027] In a specific embodiment, a suction main pipe 3 is connected to four suction branch pipes 2, and a dust filter unit 4 is connected to three suction main pipes 3, which can achieve significant energy-saving effects. For example, there are 48 JWF1566 type 1200-spindle collective doffing spinning frames in the A spinning workshop, and the total number of spinning spindles in the A spinning workshop is 57,600. In order for the spinning frame to produce normally, it must have a process suction system. The traditional spinning frame process suction system is equipped with a 7.5Kw cotton suction fan 9 for each spinning frame. There are 48 cotton suction fans 9 in the A workshop, plus 2 45Kw process return air fans 8, which are used to handle the air volume discharged by the process suction fans of the 48 spinning frames. The A spinning workshop is equipped with a spinning process suction system. The installed power required is 48*7.5+45*2=450Kw, and the energy consumption is too high. The present invention provides an energy-saving spinning frame process suction system. 4 sets are configured for 48 spinning machines in workshop A, with one set for every 12 spinning frames. A set of spinning frame process suction system meets the air volume and air pressure requirements of each spinning frame process suction. The installed power of the dust filter unit 4 is 49.75Kw, including a 45Kw centrifugal fan and a 4.75kw cotton continuous collecting device. The total installed power of the four sets is (45+4.75)*4=199Kw. After the transformation is implemented, the 7.5Kw cotton suction fan 9 and two 45Kw return air fans 8 of the spinning frame itself are stopped. The new spinning process suction system used in workshop A reduces the installed power by 251Kw compared with the traditional spinning frame process suction system, which has a good energy-saving effect. The centrifugal fan and the cotton continuous collection device are arranged in sequence along the airflow direction and are powered by a distribution box. The cotton continuous collection device includes a filter disc, a suction arm fan device, a fiber presser and a cotton bag, which automatically collects the bellows flowers. The air outlet of the dust filter unit 4 is connected to the air conditioning room. The whole process of the present invention is automated without labor consumption.

[0028] In one aspect of the embodiment of the present invention, a gate valve 21 is provided at the position where the suction branch pipe 2 is connected to the spinning machine tail wind box 1. The gate valve 21 is used to control the connection between the suction branch pipe 2 and the spinning machine tail wind box 1. Figure 2 and Figure 3 As shown, a cotton suction fan 9 is provided in the tail wind box 1 of the spinning locomotive, and the tail wind box 1 of the spinning locomotive is connected with the return air fan 8 through the trench 7, and an exhaust port baffle 6 is provided between the tail wind box 1 of the spinning locomotive and the trench 7. The present invention can be modified on the basis of the existing system, and the modification does not substantially damage the spinning frame. When the raw materials of the production varieties in the workshop are the same, all the spinning frames in the workshop use the new system. When the raw materials of individual production varieties are different, the gate valve 21 can be closed, the exhaust port baffle 6 can be opened, and the old system can be used to work. The new system and the traditional system can be flexibly converted. When the dust filter is overhauled, the old system can also be temporarily enabled without affecting normal production.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spinning frame process suction system, characterized in that: include: A spinning machine tail wind box (1), a suction branch pipe (2), a suction main pipe (3) and a dust filter unit (4); One end of the suction branch pipe (2) is connected to the spinning machine tail wind box (1), and the other end is connected to the suction main pipe (3); the dust filter unit (4) is connected to at least two of the suction branch pipes (2) through the suction main pipe (3); wherein the spinning machine tail wind box (1) is connected to a cotton suction air duct (5).

2. The spinning frame process suction system according to claim 1 is characterized in that: One suction main pipe (3) is connected to at least two suction branch pipes (2), and one dust filter unit (4) is connected to at least two suction main pipes (3).

3. The spinning frame process suction system according to claim 2 is characterized in that: One of the air suction main pipes (3) is connected to the four air suction branch pipes (2), and one of the dust filtering units (4) is connected to the three air suction main pipes (3).

4. The spinning frame process suction system according to claim 1 is characterized in that: The dust filtering unit (4) comprises a centrifugal fan and a cotton continuous collecting device which are arranged in sequence along the airflow direction.

5. The spinning frame process suction system according to claim 4 is characterized in that: The dust filtering unit (4) also includes a distribution box, which is electrically connected to the centrifugal fan and the cotton continuous collection device.

6. The spinning frame process suction system according to claim 4, characterized in that: The cotton continuous collecting device comprises a filter disc, a suction arm fan device, a fiber presser and a cotton bag.

7. The spinning frame process suction system according to claim 1 is characterized in that: A gate valve (21) is provided at the position where the suction branch pipe (2) is connected to the spinning machine tail wind box (1).

8. The spinning frame process suction system according to claim 1 is characterized in that: The air outlet of the dust filtering unit (4) is communicated with the air conditioning room.

9. The spinning frame process suction system according to any one of claims 1 to 8, characterized in that: The spinning machine tail wind box (1) is provided with a cotton suction fan (9), and the spinning machine tail wind box (1) is connected to a return air fan (8) through a trench (7).

10. The spinning frame process suction system according to claim 9, characterized in that: An air outlet baffle (6) is arranged between the spinning machine tail wind box (1) and the ground ditch (7).

Images