An integrated energy-saving air box system for compact spinning frame

Abstract

The present invention provides an integrated energy-saving bellows system for a condensed spinning machine. The bellows cleaning process is an intermittent mode. When a certain amount of fiber is adsorbed on the surface of a rotary dust cage component, so that the reading of the first pressure sensor of the condensed spinning negative pressure air duct reaches a set lower limit, the bellows cleaning process starts to run. At this time, the first dust cage driving roller, the second dust cage driving roller and the suction nozzle start to work synchronously. When the rotary dust cage component rotates, the dust cage filter dense mesh surface with fiber adsorbed on the surface enters the constant pressure bin from the negative pressure bin as the rotary dust cage component rotates. At this time, the negative pressure airflow cannot be transmitted to the constant pressure bin due to the action of the airflow blocking roller component and the first and third sealing strips. The fibers on the surface of the rotary dust cage component in the constant pressure bin are no longer adsorbed by the negative pressure, and are sucked away by the negative pressure of the suction nozzle and recovered to the raw material room through the workshop negative pressure pipeline. After the rotary dust cage component rotates one circle, a cleaning cycle is completed, and the first dust cage driving roller and the suction nozzle stop working synchronously.

Description

Technical Field

[0001] The present invention belongs to the new technology field of spinning, and relates to an integrated energy-saving air box system for a compact spinning frame. Background Art

[0002] Compact spinning is a new spinning technology carried out on an improved new ring spinning frame. The structure of compact spun yarn is very tight, the yarn appearance is smooth, with less hairiness and higher strength. Due to the characteristics of compact spun yarn, it has an upgrading effect on textile products. At present, the existing number of cotton spindles in China reaches 120 million spindles, and the compact spinning production capacity is about more than 40 million spindles, still having a large room for improvement. In the commonly used negative pressure air flow compact spinning, the negative pressure energy consumption for spinning each spindle of yarn is about 8 - 10 watts, and the energy consumption of the installed capacity per 10,000 spindles is as high as more than 110 kilowatts. Due to the need for a large amount of negative pressure air flow, the spinning energy consumption of the compact spinning frame is relatively high, which restricts the popularization of compact spinning technology in the domestic market.

[0003] The negative pressure air flow of the compact spinning frame comes from the air box of the spinning frame. The air box is a device for sucking air, and its main function is to provide the required negative pressure air for the spinning frame. The air box of the compact spinning frame includes two air boxes with different functions. One is the suction air box that provides negative pressure air flow for the nozzle tube to suck away the fibers generated by the broken yarn ends; the other is the compact spinning negative pressure air box that provides the gathering air flow for the fiber bundle in the compact spinning device. The compact spinning negative pressure air box of the spinning frame is a device that provides negative pressure air flow for the compact spinning device. During the spinning process, the compact spinning device laterally gathers the fiber bundle. However, during the spinning process, a small amount of short fibers will be sucked into the compact spinning negative pressure air box. These short fibers will accumulate on the filter screen of the compact spinning negative pressure air box for a long time, forming a layer of short fiber layer, weakening the negative pressure. When the negative pressure drops to a certain extent, it is necessary to clean the short fibers on the filter screen. In order to ensure the spinning quality, the compact spinning negative pressure air box has a relatively high requirement for the air flow fluctuation range, and the negative pressure air flow cannot fluctuate greatly to affect the yarn quality. The suction air box of the spinning frame is responsible for sucking away all the fibers output by the front roller at the broken yarn end position of the spindle and collecting them. The fibers sucked into the suction air box will adsorb on the filter screen, reducing the suction negative pressure. Only after cleaning the fibers on the filter screen can the suction negative pressure return to the initial state. The fibers adsorbed on the filter screen of the traditional suction air box of the spinning frame are usually removed manually. During the production process of the spinning frame, it is necessary to repeatedly clean the fibers in the suction air box to ensure the negative pressure size at the nozzle tube mouth. At the same time, the fibers recovered in the suction air box can also be recycled. The negative pressure fluctuation of the suction air box far exceeds that of the compact spinning negative pressure air box, so it is impossible to simply simplify the compact spinning negative pressure air box and the suction air box into one air box.

[0004] An energy-saving air box for a spinning frame with the publication number CN 220202129 U is provided with a brushing and suction mechanism on the outer side of a negative-pressure filter screen. The bristles on the brushing and suction box of the brushing and suction mechanism are used to brush the negative-pressure filter screen, and at the same time, the suction port on the brushing and suction box is used to suck and clean the short lint and impurities after brushing, avoiding the short lint and impurities being re-adsorbed on the negative-pressure filter screen and affecting the normal operation of the negative-pressure filter screen after the brushing operation. The short lint and impurities after suction enter the filter bag through the suction pipe and the air guide pipe, effectively improving the working efficiency of the negative-pressure filter screen. In the actual operation of the air box of the spinning frame, the negative-pressure air flow pressure of the fan is very high, and the fibers are tightly adsorbed on the filter screen under the action of the air flow pressure. It is difficult to clean the fibers on the surface of the filter screen with a brush equipped with a suction device, and a greater suction negative pressure is required, resulting in a significant increase in equipment energy consumption.

[0005] An energy-saving air box for a spinning frame with the publication number CN 220202129 U is provided with a brushing and suction mechanism on the outer side of a negative-pressure filter screen. The bristles on the brushing and suction box of the brushing and suction mechanism are used to brush the negative-pressure filter screen, and at the same time, the suction port on the brushing and suction box is used to suck and clean the short lint and impurities after brushing, avoiding the short lint and impurities being re-adsorbed on the negative-pressure filter screen and affecting the normal operation of the negative-pressure filter screen after the brushing operation. The short lint and impurities after suction enter the filter bag through the suction pipe and the air guide pipe, effectively improving the working efficiency of the negative-pressure filter screen. In the actual operation of the air box of the spinning frame, the negative-pressure air flow pressure of the fan is very high, and the fibers are tightly adsorbed on the filter screen under the action of the air flow pressure. It is difficult to clean the fibers on the surface of the filter screen with a brush equipped with a suction device, and a greater suction negative pressure is required, resulting in a significant increase in equipment energy consumption.

[0006] An automatic cleaning cotton suction air box for a roving frame with the publication number CN110747546B divides the cotton suction air box into two interconnected chambers. An upper and lower cotton box air flow blocking plate that divides the negative pressure chamber into an upper cotton suction box and a lower waste cotton box is provided in the negative pressure chamber. The compact spinning negative pressure air duct and the process exhaust air duct communicate with the upper cotton suction box. Its filter screen structure adopts the rotary dust cage structure commonly used in the cotton condenser of textile equipment. Two freely moving air flow blocking rollers are arranged inside the dust cage. By setting the local area of the filter screen as a low negative pressure area through the air flow blocking rollers, the fibers on the filter screen fall off into the lower waste cotton box, achieving an energy-saving effect. However, this method fails to fully consider the detailed characteristics of the operation of the air box of the roving frame. A reliable sealing structure must be set for the rotary dust cage structure. If the fibers cannot be completely isolated on the filter screen, they will be sucked into the fan, causing damage to the fan. The two freely moving air flow blocking rollers are affected by frictional force during the rotation of the dust cage. The blocking rollers will move circumferentially along the dust cage and at the same time move towards the lowest point of the dust cage under the action of their own gravity. Due to the change in the position of the two blocking rollers in the dust cage, under the action of this frictional force and gravity, the two rollers will show reciprocating swings. In addition, during the movement of the two blocking rollers, the movement directions of their contact points are opposite, and the two rollers rub against each other. The two blocking rollers will have different forces and the situation of unsmooth movement, and cannot achieve a stable air flow blocking effect. As is well known, fibers are prone to generating static electricity. Under the action of static electricity, the fiber layer adsorbed on the filter screen cannot fall freely even without negative pressure, and corresponding devices must be used for cleaning. This patent lacks feasible specific details and structures and cannot be specifically applied in practice.

[0007] The key point of the present invention is to propose a system that is suitable for application in a compact spinning roving frame, designs the compact spinning negative pressure air box and the cotton suction air box as an integrated air box, has a rotating dust cage with a sealing structure and an effective driving form, and has a corresponding device with an automatic cleaning function for the filter screen, and cooperates with the automatic adjustment method of the compact spinning negative pressure and the cotton suction negative pressure to achieve low-energy consumption spinning.

[0008] It should be noted that the information disclosed in the above background art section is only used to strengthen the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide an integrated energy-saving air box system for a compact spinning roving frame. The compact spinning negative pressure air box and the cotton suction air box are designed as an integrated air box, which has a rotating dust cage with a sealing structure and an effective driving form, and is designed with a device having an automatic cleaning function for the filter screen, and cooperates with the automatic adjustment method of the compact spinning negative pressure and the cotton suction negative pressure to achieve energy saving.

[0010] To achieve the above object, the technical solution of the present invention is as follows:

[0011] An integrated energy-saving air box system for a compact spinning frame;

[0012] A rotary dust cage assembly is arranged in the negative pressure bin. The suction end of the negative pressure fan is installed on the inner wall panel of the air box, and the end face of the negative pressure fan is completely located inside the rotary dust cage assembly. A constant pressure bin that is partially connected to the negative pressure bin is arranged below the negative pressure bin. When the rotary dust cage assembly extends circumferentially into the constant pressure bin locally, the corresponding structure cuts off the negative pressure bin from the constant pressure bin, and the fiber layer adsorbed on the surface of the rotary dust cage assembly is stripped and sucked away. The compact spinning negative pressure air duct is connected to the negative pressure bin through a bent pipe, and the cotton suction air duct is connected to the negative pressure bin through an air flow proportional valve. A first pressure sensor is arranged on the compact spinning negative pressure air duct, and a second pressure sensor is arranged on the cotton suction air duct. The air flow proportional valve is fully opened. Based on the first pressure sensor on the compact spinning negative pressure air duct, the operating frequency of the negative pressure fan is controlled to make the negative pressure of the compact spinning air duct reach the pressure upper limit set by the first pressure sensor. Then, based on the second pressure sensor on the cotton suction air duct, the air flow distribution between the compact spinning negative pressure air duct and the cotton suction air duct is adjusted through the air flow proportional valve until the set upper limit of the second pressure sensor is reached. At this time, the operating frequency of the negative pressure fan and the air flow proportional valve are slowly adjusted so that the pressures of both the compact spinning negative pressure air duct and the cotton suction air duct reach the set pressure upper limit. At this time, the air flow proportional valve keeps the flow rate distribution between the compact spinning negative pressure air duct and the cotton suction air duct unchanged during the normal operation of the spinning frame. When the adsorption of fibers on the surface of the rotary dust cage assembly causes the air flow negative pressure to decrease, when the reading of the first pressure sensor on the compact spinning negative pressure air duct reaches the set lower limit, the air box cleaning process starts to run. When a air box cleaning process is completed, the air box negative pressure rises back to between the set upper and lower limits.

[0013] A further technical solution is as follows: The cleaning process of the air box of the compact spinning frame integrated energy-saving air box system is an intermittent mode, that is, the cleaning and external transportation of the fibers sucked back by the air box are intermittent. When a certain amount of fibers are adsorbed on the surface of the rotary dust cage assembly, causing the reading of the first pressure sensor in the negative pressure air duct of the compact spinning to reach the set lower limit, the air box cleaning process starts to run. At this time, the first dust cage driving roller, the second dust cage driving roller and the suction nozzle start to work synchronously. The first dust cage driving roller and the second dust cage driving roller are connected by a synchronous belt and driven by the first motor. While driving the rotary dust cage assembly to rotate, the first dust cage driving roller and the second dust cage driving roller also provide a supporting effect in the vertical direction for the rotary dust cage assembly; When the rotary dust cage assembly rotates, the dust cage filter mesh with fibers adsorbed on its surface enters the constant pressure chamber from the negative pressure chamber as the rotary dust cage assembly rotates. At this time, the negative pressure air flow cannot be conducted to the constant pressure chamber under the action of the air flow isolation roller assembly, the first sealing strip and the third sealing strip. The fibers on the surface of the rotary dust cage assembly in the constant pressure chamber are no longer adsorbed by the negative pressure and are sucked away by the negative pressure of the suction nozzle and recycled to the raw material room through the workshop negative pressure pipeline; When the suction nozzle is working, in order to stabilize the air pressure in the constant pressure chamber, a one-way self-closing door is provided on the side wall of the constant pressure chamber to supplement air to the constant pressure chamber; After the rotary dust cage assembly rotates one week, a cleaning cycle is completed, and the first dust cage driving roller and the suction nozzle stop working synchronously.

[0014] A further technical solution is as follows: The rotary dust cage assembly includes an end face, a skeleton hole surface and a dust cage filter mesh. The skeleton hole surface is fixed on the end face by the first bolt. The dust cage filter mesh is coated on the outside of the circular skeleton hole surface. There is a groove in the middle of the inner side of the skeleton hole surface, and the air flow isolation roller assembly runs in this groove to control the axial position of the air flow isolation roller assembly through this groove; The width of the dust cage filter mesh is greater than the width of the circular skeleton hole surface. The hole shape of the circular skeleton hole surface is a regular hexagonal hole with a hole side length of 20 - 30 mm, and the dust cage filter mesh is a plain weave stainless steel wire mesh.

[0015] A further technical solution is as follows: The rotary dust cage assembly is fixed on the inner wall panel of the air box through a rotary support bearing, and the rotary support bearing has a dual function of fixing and sealing for the rotary dust cage assembly; The rotary support bearing includes: an inner bearing ring, an outer bearing ring, ball bearings, a fourth sealing strip, fixing bolts and an annular sealing clip; The rotary dust cage assembly rotates along the rotation track of the rotary support bearing, and realizes the sealing between the rotary dust cage assembly and the inner wall panel of the air box through the rotary support bearing, so that the air flow inside and outside the dust cage can only flow through the dust cage filter mesh.

[0016] A further technical solution is as follows: The air flow partition roller assembly is of a three-roller structure, including two end face sealing plates, a free gravity roller, a first dust cage contact roller and a second dust cage contact roller. The first dust cage contact roller and the second dust cage contact roller are metal-coated rubber rollers, and the free gravity roller is a metal roller. The lengths of the three rollers are equal and are all greater than the width of the perforated area of the circular skeleton hole surface to achieve the sealing effect in the length direction of the air flow partition roller assembly. The distance between the two end face sealing plates and the end faces of the three rollers is 0.5 mm, and wear-resistant felt pads are padded to ensure sealing while the free gravity roller, the first dust cage contact roller and the second dust cage contact roller can rotate freely. The distance between the lower edges of the two end face sealing plates and the inner surface of the circular skeleton hole surface of the rotary dust cage assembly is 1 mm, and the end face sealing of the air flow partition roller assembly is realized through the two end face sealing plates. When the dust cage rotates, the first dust cage contact roller and the second dust cage contact roller are subjected to the frictional force in the same direction and move in the same rotation direction, and act on the free gravity roller in the same rotation direction at the same time to make it rotate. Due to this process of the air flow partition roller assembly, the air flow partition roller assembly will reciprocate and roll within a certain range in the circumferential direction of the dust cage. In the present invention, two first sealing strips and second bolts are arranged at both ends of the outer side of the dust cage within the rolling range of the air flow partition roller assembly to achieve the air flow partition effect in the dust cage area between the first dust cage contact roller and the second dust cage contact roller.

[0017] A further technical solution is as follows: The first sealing strip and the third sealing strip are respectively installed on the horizontal partition plate in the air box. The first sealing strip is fixed by the third bolt, and the third sealing strip is fixed by the second bolt.

[0018] A further technical solution is as follows: The negative pressure chamber and the constant pressure chamber of the integrated air box are separated by an arc-shaped partition plate and a horizontal partition plate in space, and the middle of the horizontal partition plate is hollowed out.

[0019] The beneficial technical effects of the present invention are as follows: The integrated energy-saving air box system of the compact spinning frame of the present invention can realize the automatic adjustment and maintenance of the compact spinning negative pressure and the suction cotton negative pressure. The waste fibers sucked into the air box can be automatically cleaned and output, greatly reducing the cleaning cycle compared with manual operation, reducing the fluctuation range of the air box negative pressure, improving the working efficiency of the negative pressure fan, helping to reduce energy consumption, reducing the labor of workers, and maintaining the spinning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shows the structural schematic diagram of the integrated energy-saving air box in Embodiment 1.

[0021] Figure 2 Shows the front view structural schematic diagram of the integrated energy-saving air box in Embodiment 1.

[0022] Figure 3 Shows the side view structural schematic diagram of the integrated energy-saving air box in Embodiment 1.

[0023] Figure 4 Shows a sectional view of the rotary dust cage and its installation method in the first embodiment.

[0024] Figure 5 Shows the double-layer net structure diagram of the rotary dust cage in the first embodiment.

[0025] Figure 6 Shows a partial structure diagram of the integrated energy-saving air box in the first embodiment.

[0026] Figure 7 Shows a front view structure diagram of another integrated energy-saving air box in the second embodiment.

[0027] Figure 8 Shows a side view structure diagram of another integrated energy-saving air box in the second embodiment.

[0028] Figure 9 Shows a partial structure diagram of another integrated energy-saving air box in the second embodiment.

[0029] Figure 10 Shows a sectional view of the rotary dust cage and its installation method in the second embodiment.

[0030] Figure 11 Shows the two-roll negative pressure air flow partition roll assembly diagram in the second embodiment.

[0031] Figure 12 Shows a front view structure diagram of another integrated energy-saving air box in the third embodiment.

[0032] Figure 13 Shows a side view structure diagram of another integrated energy-saving air box in the third embodiment.

[0033] Figure 14 Shows a sectional view of the rotary dust cage and its installation method in the third embodiment.

[0034] Figure 15 Shows a partial structure diagram of another integrated energy-saving air box in the third embodiment.

[0035] In the figure: 1, negative pressure bin; 10, negative pressure fan; 11, first motor; 12, inner wall panel of air box; 14, arc-shaped partition; 15, first pressure sensor; 16, second pressure sensor; 17, air flow proportional valve; 18, rotary support bearing; 181, inner ring of bearing; 182, outer ring of bearing; 183, ball; 184, fourth sealing strip; 185, fixing bolt; 186, annular sealing clip; 19, horizontal partition; 2, constant pressure bin; 20, suction nozzle; 22, first sealing strip; 23, second bolt; 24, third bolt; 25, third sealing strip; 26, one-way self-closing door; 27, roller; 28, scraper; 29, spring; 3, rotary dust cage assembly; 301, end face; 302, skeleton hole surface; 303, dust cage filter mesh; 304, first bolt; 30, first positioning roller; 31, second positioning roller; 32, rubber sealing strip; 33, inner nut; 34, outer nut; 35, third positioning roller; 36, fourth positioning roller; 37, third dust cage drive roller; 38, second motor; 4, elbow; 5, negative pressure air duct for compact spinning; 6, cotton suction air duct; 7, air flow partition roller assembly; 701, end face seal plate; 702, first dust cage contact roller; 703, free gravity roller; 704, second dust cage contact roller; 705, end bottom seal plate; 8, first dust cage drive roller; 9, second dust cage drive roller. Detailed implementation mode

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the device proposed by the present invention in combination with the attached drawings and specific implementation modes. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the attached drawings are in a very simplified form and all use non-precise scales, only for conveniently and clearly assisting in explaining the objectives of the implementation modes of the present invention. In order to make the objectives, features and advantages of the present invention more obvious and understandable, please refer to the attached drawings. It should be noted that the structures, scales, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed by the present invention.

[0037] Example 1:

[0038] The integrated energy-saving air box system of the compact spinning frame in this example is as Figures 1 to 3As shown, a rotary dust cage assembly 3 is arranged in the negative pressure bin 1. The suction end of the negative pressure fan 10 is installed on the inner wall panel 12 of the air box, and the end face of the negative pressure fan 10 is completely located inside the rotary dust cage assembly 3. A constant pressure bin 2 that is partially connected to the negative pressure bin 1 is arranged below the negative pressure bin 1. When the rotary dust cage assembly 3 extends circumferentially into the constant pressure bin 2 locally, the corresponding structure cuts off the negative pressure bin 1 and the constant pressure bin 2, and the fiber layer adsorbed on the surface of the rotary dust cage assembly 3 is stripped and sucked away. The compact spinning negative pressure air duct 5 is connected to the negative pressure bin 1 through a bent pipe 4, and the cotton suction air duct 6 is connected to the negative pressure bin 1 through an air flow proportional valve 17. A first pressure sensor 15 is arranged on the compact spinning negative pressure air duct 5, and a second pressure sensor 16 is arranged on the cotton suction air duct 6. The air flow proportional valve 17 is fully opened. Based on the first pressure sensor 15 on the compact spinning negative pressure air duct 5, the working frequency of the negative pressure fan 10 is controlled to make the negative pressure of the compact spinning air duct reach the upper pressure limit set by the first pressure sensor 15. Then, based on the second pressure sensor 16 on the cotton suction air duct 6, the air flow distribution between the compact spinning negative pressure air duct 5 and the cotton suction air duct 6 is adjusted through the air flow proportional valve 17 until the upper limit set by the second pressure sensor 16 is reached. At this time, the working frequency of the negative pressure fan 10 and the air flow proportional valve 17 are slowly adjusted so that the pressures of both the compact spinning negative pressure air duct 5 and the cotton suction air duct 6 reach the set upper pressure limit. At this time, the air flow proportional valve 17 keeps the flow distribution between the compact spinning negative pressure air duct 5 and the cotton suction air duct 6 unchanged during the normal operation of the spinning frame. When the adsorption of fibers on the surface of the rotary dust cage assembly 3 causes the air flow negative pressure to decrease, when the reading of the first pressure sensor 15 on the compact spinning negative pressure air duct 5 reaches the set lower limit, the air box cleaning process starts to run. When an air box cleaning process is completed, the negative pressure of the air box rises back to between the set upper and lower limits.

[0039] The cleaning process of the integrated energy-saving air box system of the compact spinning frame is an intermittent mode, that is, the cleaning and external transportation of the fibers sucked back by the air box are intermittent. When a certain amount of fibers are adsorbed on the surface of the rotary dust cage assembly 3, causing the reading of the first pressure sensor 15 in the negative pressure air duct 5 of the compact spinning to reach the set lower limit, the air box cleaning process starts to run. At this time, the first dust cage driving roller 8, the second dust cage driving roller 9 and the suction nozzle 20 start to work synchronously. The first dust cage driving roller 8 and the second dust cage driving roller 9 are connected by a synchronous belt and driven by the first motor 11. While driving the rotary dust cage assembly 3 to rotate, the first dust cage driving roller 8 and the second dust cage driving roller 9 also provide a supporting effect in the vertical direction for the rotary dust cage assembly 3. When the rotary dust cage assembly 3 rotates, the dust cage filter mesh 303 with fibers adsorbed on its surface enters the constant pressure chamber 2 from the negative pressure chamber 1 along with the rotation of the rotary dust cage assembly 3. At this time, due to the action of the air flow partition roller assembly 7, the first sealing strip 22 and the third sealing strip 25, the negative pressure air flow cannot be conducted to the constant pressure chamber 2. The fibers on the surface of the rotary dust cage assembly 3 in the constant pressure chamber 2 are no longer adsorbed by the negative pressure and are sucked away by the negative pressure of the suction nozzle 20 and recycled to the raw material room through the workshop negative pressure pipeline. When the suction nozzle 20 is working, in order to stabilize the air pressure in the constant pressure chamber 2, a one-way self-closing door 26 is provided on the side wall of the constant pressure chamber 2 to supplement air to the constant pressure chamber 2. After the rotary dust cage assembly 3 rotates one week, a cleaning cycle is completed, and the first dust cage driving roller 8 and the suction nozzle 20 stop working synchronously.

[0040] The rotary dust cage assembly 3 includes an end face 301, a skeleton hole surface 302 and a dust cage filter mesh 303, and the structure is as Figure 4 shown. The skeleton hole surface 302 is fixed on the end face 301 by the first bolt 304. The dust cage filter mesh 303 is coated on the outside of the circular skeleton hole surface 302. There is a groove in the middle of the inner side of the skeleton hole surface 302, and the air flow partition roller assembly 7 runs in this groove to control the axial position of the air flow partition roller assembly 7 through this groove. As Figure 5 shown, the width of the dust cage filter mesh 303 is greater than the width of the circular skeleton hole surface 302. The hole shape of the circular skeleton hole surface 302 is a regular hexagonal hole, and the hole side length is 20 - 30 mm. The dust cage filter mesh 303 is a plain weave stainless steel wire mesh.

[0041] The rotary dust cage assembly 3 is fixed on the inner wall panel 12 of the air box through the rotary support bearing 18, and the rotary support bearing 18 plays a dual role of fixing and sealing for the rotary dust cage assembly 3. The rotary support bearing 18 includes: a bearing inner ring 181, a bearing outer ring 182, a ball 183, a fourth sealing strip 184, a fixing bolt 185 and an annular sealing clip 186. The rotary dust cage assembly 3 rotates along the rotation track of the rotary support bearing 18, and the sealing between the rotary dust cage assembly 3 and the inner wall panel 12 of the air box is realized through the rotary support bearing 18, so that the air flow inside and outside the dust cage can only flow through the dust cage filter mesh 303.

[0042] The air flow partition roller assembly 7 has a three-roller structure. As Figure 6 shown, it includes two end face sealing plates 701, a free gravity roller 703, a first dust cage contact roller 702, and a second dust cage contact roller 704. Among them, the first dust cage contact roller 702 and the second dust cage contact roller 704 are metal-coated rubber rollers, and the free gravity roller 703 is a metal roller. The lengths of the three rollers are equal and are all greater than the width of the perforated area of the circular skeleton hole surface 302 to achieve the sealing effect in the length direction of the air flow partition roller assembly 7. The distance between the two end face sealing plates 701 and the end faces of the three rollers is 0.5 mm, and wear-resistant felt pads are padded to ensure sealing while the free gravity roller 703, the first dust cage contact roller 702, and the second dust cage contact roller 704 can rotate freely. The distance between the lower edges of the two end face sealing plates 701 and the inner surface of the circular skeleton hole surface 302 of the rotary dust cage assembly 3 is 1 mm, and the end face sealing of the air flow partition roller assembly 7 is achieved through the two end face sealing plates 701. When the dust cage rotates, the first dust cage contact roller 702 and the second dust cage contact roller 704 are subjected to frictional forces in the same direction and move in the same rotation direction, and simultaneously act on the free gravity roller 703 in the same rotation direction to make it rotate. Due to this process of the air flow partition roller assembly 7, the air flow partition roller assembly 7 will reciprocally roll within a certain range in the circumferential direction of the dust cage. In the present invention, two first sealing strips 22 and second bolts 23 are provided at both ends outside the dust cage in the rolling range of the air flow partition roller assembly 7 to achieve the air flow partition effect in the dust cage area between the first dust cage contact roller 702 and the second dust cage contact roller 704.

[0043] The first sealing strip 22 and the third sealing strip 25 are respectively installed on the horizontal partition 19 in the air box. The first sealing strip 22 is fixed by the third bolt 24, and the third sealing strip 25 is fixed by the second bolt 23.

[0044] The negative pressure chamber 1 and the constant pressure chamber 2 of the integrated air box are separated in space by an arc-shaped partition 14 and a horizontal partition 19, and the middle of the horizontal partition 19 is hollowed out.

[0045] Embodiment 2:

[0046] In this embodiment, certain changes are made to the fixing form and sealing form of the rotary dust cage assembly, as well as the form of the air flow partition roller assembly. The sealing effect slightly decreases, but the cleaning effect of the fiber layer can still be maintained while cooperating with the action of the scraper 28 and increasing the negative pressure of the suction nozzle 20.

[0047] The integrated energy-saving air box system of the compact spinning frame in this embodiment is as Figures 7 to 8As shown in the figure, a rotary dust cage assembly 3 is arranged in the negative pressure bin 1. The suction end of the negative pressure fan 10 is installed on the inner wall panel 12 of the air box, and the end face of the negative pressure fan 10 is completely located inside the rotary dust cage assembly 3. A constant pressure bin 2 that is partially connected to the negative pressure bin 1 is arranged below the negative pressure bin 1. When the rotary dust cage assembly 3 extends circumferentially into the constant pressure bin 2 locally, the corresponding structure cuts off the negative pressure bin 1 from the constant pressure bin 2, and the fiber layer adsorbed on the surface of the rotary dust cage assembly 3 is peeled off and sucked away. The negative pressure air duct 5 for compact spinning is connected to the negative pressure bin 1 through a bent pipe 4, and the cotton suction air duct 6 is connected to the negative pressure bin 1 through an air flow proportional valve 17. A first pressure sensor 15 is arranged on the negative pressure air duct 5 for compact spinning, and a second pressure sensor 16 is arranged on the cotton suction air duct 6. The air flow proportional valve 17 is fully opened. Based on the first pressure sensor 15 on the negative pressure air duct 5 for compact spinning, the operating frequency of the negative pressure fan 10 is controlled to make the negative pressure in the compact spinning air duct reach the pressure upper limit set by the first pressure sensor 15. Then, based on the second pressure sensor 16 on the cotton suction air duct 6, the air flow distribution between the negative pressure air duct 5 for compact spinning and the cotton suction air duct 6 is adjusted through the air flow proportional valve 17 until the set upper limit of the second pressure sensor 16 is reached. At this time, the operating frequency of the negative pressure fan 10 and the air flow proportional valve 17 are slowly adjusted so that the pressures in both the negative pressure air duct 5 for compact spinning and the cotton suction air duct 6 reach the set pressure upper limit. At this time, the air flow proportional valve 17 keeps the flow rate distribution between the negative pressure air duct 5 for compact spinning and the cotton suction air duct 6 unchanged during the normal operation of the spinning frame. When the adsorption of fibers on the surface of the rotary dust cage assembly 3 causes a decrease in the air flow negative pressure, when the reading of the first pressure sensor 15 on the negative pressure air duct 5 for compact spinning reaches the set lower limit, the air box cleaning process starts to run. When an air box cleaning process is completed, the negative pressure in the air box rises back to between the set upper and lower limits.

[0048] The cleaning process of the integrated energy-saving air box system of the compact spinning frame is an intermittent mode, that is, the cleaning and external transportation of the fibers sucked back by the air box are intermittent. When a certain amount of fibers are adsorbed on the surface of the rotary dust cage assembly 3, and the reading of the first pressure sensor 15 in the negative pressure air duct 5 of the compact spinning reaches the set lower limit, the air box cleaning process starts to run. At this time, the first dust cage driving roller 8, the second dust cage driving roller 9 and the suction nozzle 20 start to work synchronously. The first dust cage driving roller 8 and the second dust cage driving roller 9 are connected by a synchronous belt and driven by the first motor 11. While driving the rotary dust cage assembly 3 to rotate, the first dust cage driving roller 8 and the second dust cage driving roller 9 also play a supporting role in the vertical direction for the rotary dust cage assembly 3. When the rotary dust cage assembly 3 rotates, the dust cage filter mesh 303 with fibers adsorbed on its surface enters the constant pressure chamber 2 from the negative pressure chamber 1 along with the rotation of the rotary dust cage assembly 3. At this time, due to the action of the air flow partition roller assembly 7, the first sealing strip 22 and the third sealing strip 25, the negative pressure air flow cannot be conducted to the constant pressure chamber 2. The fibers on the surface of the rotary dust cage assembly 3 in the constant pressure chamber 2 are no longer adsorbed by the negative pressure. The fiber layer is scraped and accumulated at the scraper 28 and is sucked away by the negative pressure of the suction nozzle 20, and is recycled to the raw material room through the workshop negative pressure pipeline. As Figure 9 shown, the scraper 28 is acted on by the spring 29 to form an elastic jaw with the surface of the rotary dust cage, and does not excessively wear the dust cage filter mesh 303 while scraping the fibers. When the suction nozzle 20 works, in order to stabilize the air pressure in the constant pressure chamber 2, a one-way self-closing door 26 is provided on the side wall of the constant pressure chamber 2, which can supply air to the constant pressure chamber 2. When the rotary dust cage assembly 3 rotates one week, a cleaning cycle is completed, and the first dust cage driving roller 8 and the suction nozzle 20 stop working synchronously.

[0049] The rotary dust cage assembly 3 includes an end face 301, a skeleton hole face 302 and a dust cage filter mesh 303. A roller shaft 27 is installed at the center position of the end face 301 and is fixed by an inner nut 33 and an outer nut 34. A rubber sealing strip 32 is designed at one end of the skeleton hole face 302 close to the inner wall panel 12 of the air box to seal between the rotary dust cage assembly 3 and the inner wall panel 12 of the air box. The structure is as Figure 10 shown, the skeleton hole face 302 is fixed on the end face 301 by the first bolt 304. The dust cage filter mesh 303 is coated on the outside of the circular skeleton hole face 302. There is a groove in the middle of the inner side of the skeleton hole face 302, and the air flow partition roller assembly 7 runs in this groove to control the axial position of the air flow partition roller assembly 7 through this groove. The width of the dust cage filter mesh 303 is greater than the width of the circular skeleton hole face 302. The hole shape of the circular skeleton hole face 302 is a regular hexagonal hole, and the side length of the hole is 20 - 30 mm. The dust cage filter mesh 303 is a plain stainless steel wire mesh.

[0050] The rotary dust cage assembly 3 is fixed on the air box wall panel on the other side through the roller 27. Two first positioning rollers 30 and second positioning rollers 31 are arranged on the inner side of the rotary dust cage assembly 3 in contact with the inner wall panel 12 of the air box. The installation positions of the two first positioning rollers 30 and second positioning rollers 31 are lower than the central horizontal line of the rotary dust cage assembly 3, restricting its upward sway. The rotary dust cage assembly 3 rotates along the rotation of the roller 27.

[0051] The air flow partition roller assembly 7 has a two-roller structure, as Figure 11 shown, including an end bottom sealing plate 705, a first dust cage contact roller 702 and a second dust cage contact roller 704. The first dust cage contact roller 702 and the second dust cage contact roller 704 are metal-coated rubber rollers. The lengths of the two rollers are equal and both are greater than the width of the perforated area of the circular skeleton hole surface 302 to achieve the sealing effect in the length direction of the air flow partition roller assembly 7. The distance between the end bottom sealing plate 705 and the end faces of the two rollers is 0.5 mm, and a wear-resistant felt pad is padded to ensure sealing. At the same time, the first dust cage contact roller 702 and the second dust cage contact roller 704 can rotate freely. The distance between the lower edge and the bottom surface of the end face sealing plate 701 and the inner surface of the circular skeleton hole surface 302 of the rotary dust cage assembly 3 is 1 mm. The end bottom sealing plate 705 is used to achieve the sealing of the separated area between the end face of the air flow partition roller assembly 7 and the two rollers. When the dust cage rotates, the first dust cage contact roller 702 and the second dust cage contact roller 704 are subjected to the frictional force in the same direction and move in the same rotation direction. In the present invention, two first sealing strips 22 and second bolts 23 are arranged at both ends of the outer side of the dust cage within the rolling range of the air flow partition roller assembly 7 to achieve the air flow partition effect in the dust cage area between the first dust cage contact roller 702 and the second dust cage contact roller 704.

[0052] The first sealing strip 22 and the third sealing strip 25 are respectively installed on the horizontal partition 19 in the air box. The first sealing strip 22 is fixed by the third bolt 24, and the third sealing strip 25 is fixed by the second bolt 23.

[0053] The negative pressure chamber 1 and the constant pressure chamber 2 of the integrated air box are separated by an arc-shaped partition 14 and a horizontal partition 19 in space, and the middle of the horizontal partition 19 is hollowed out.

[0054] Embodiment 3:

[0055] In this embodiment, certain changes are made to the fixing form and driving form of the rotary dust cage assembly.

[0056] The integrated energy-saving air box system of the compact spinning frame in this embodiment is as Figures 12 to 13As shown, a rotary dust cage assembly 3 is arranged in the negative pressure bin 1. The suction end of the negative pressure fan 10 is installed on the inner wall panel 12 of the air box, and the end face of the negative pressure fan 10 is completely located inside the rotary dust cage assembly 3. A constant pressure bin 2 that is partially communicated with the negative pressure bin 1 is arranged below the negative pressure bin 1. When the rotary dust cage assembly 3 circumferentially and partially extends into the constant pressure bin 2, the corresponding structure cuts off the negative pressure bin 1 from the constant pressure bin 2, and the fiber layer adsorbed on the surface of the rotary dust cage assembly 3 is peeled off and sucked away. The compact spinning negative pressure air duct 5 is connected to the negative pressure bin 1 through a bent pipe 4, and the cotton suction air duct 6 is connected to the negative pressure bin 1 through an air flow proportional valve 17. A first pressure sensor 15 is arranged on the compact spinning negative pressure air duct 5, and a second pressure sensor 16 is arranged on the cotton suction air duct 6. The air flow proportional valve 17 is fully opened. Based on the first pressure sensor 15 on the compact spinning negative pressure air duct 5, the working frequency of the negative pressure fan 10 is controlled to make the negative pressure of the compact spinning air duct reach the pressure upper limit set by the first pressure sensor 15. Then, based on the second pressure sensor 16 on the cotton suction air duct 6, the air flow distribution between the compact spinning negative pressure air duct 5 and the cotton suction air duct 6 is adjusted through the air flow proportional valve 17 until the set upper limit of the second pressure sensor 16 is reached. At this time, the working frequency of the negative pressure fan 10 and the air flow proportional valve 17 are slowly adjusted so that the pressures of both the compact spinning negative pressure air duct 5 and the cotton suction air duct 6 reach the set pressure upper limit. At this time, the air flow proportional valve 17 keeps the flow rate distribution between the compact spinning negative pressure air duct 5 and the cotton suction air duct 6 unchanged during the normal operation of the spinning frame. When the adsorption of fibers on the surface of the rotary dust cage assembly 3 causes the air flow negative pressure to decrease, when the reading of the first pressure sensor 15 on the compact spinning negative pressure air duct 5 reaches the set lower limit, the air box cleaning process starts to run. When an air box cleaning process is completed, the negative pressure of the air box rises back to between the set upper and lower limits.

[0057] The cleaning process of the integrated energy-saving air box system of the compact spinning frame is an intermittent mode, that is, the cleaning and external transportation of the fibers sucked back by the air box are intermittent. When a certain amount of fibers are adsorbed on the surface of the rotary dust cage assembly 3, and the reading of the first pressure sensor 15 in the negative pressure air duct 5 of the compact spinning reaches the set lower limit, the air box cleaning process starts to run. At this time, the third dust cage driving roller 37 and the suction nozzle 20 start to work synchronously. The third dust cage driving roller 37 is driven by the second motor 38, and the third dust cage driving roller 37 drives the rotary dust cage assembly 3 to rotate. When the rotary dust cage assembly 3 rotates, the dust cage filter mesh 303 with fibers adsorbed on its surface enters the constant pressure chamber 2 from the negative pressure chamber 1 along with the rotation of the rotary dust cage assembly 3. At this time, due to the action of the air flow partition roller assembly 7, the first sealing strip 22 and the third sealing strip 25, the negative pressure air flow cannot be conducted to the constant pressure chamber 2. The fibers on the surface of the rotary dust cage assembly 3 in the constant pressure chamber 2 are no longer adsorbed by the negative pressure and are sucked away by the negative pressure of the suction nozzle 20 and recycled to the raw material room through the workshop negative pressure pipeline. When the suction nozzle 20 is working, in order to stabilize the air pressure in the constant pressure chamber 2, a one-way self-closing door 26 is provided on the side wall of the constant pressure chamber 2 to supplement air to the constant pressure chamber 2. When the rotary dust cage assembly 3 rotates one week, a cleaning cycle is completed, and the first dust cage driving roller 8 and the suction nozzle 20 stop working synchronously.

[0058] The rotary dust cage assembly 3 includes an end face 301, a skeleton hole face 302 and a dust cage filter mesh 303. A roller shaft 27 is installed at the center position of the end face 301 and fixed by an inner nut 33 and an outer nut 34. A rubber sealing strip 32 is designed at one end of the skeleton hole face 302 close to the inner wall panel 12 of the air box to seal between the rotary dust cage assembly 3 and the inner wall panel 12 of the air box. The structure is as Figure 14 shown. The skeleton hole face 302 is fixed on the end face 301 by the first bolt 304. The dust cage filter mesh 303 is coated on the outside of the circular skeleton hole face 302. There is a groove in the middle of the inner side of the skeleton hole face 302, and the air flow partition roller assembly 7 runs in this groove to control the axial position of the air flow partition roller assembly 7 through this groove. The width of the dust cage filter mesh 303 is greater than the width of the circular skeleton hole face 302. The hole shape of the circular skeleton hole face 302 is a regular hexagonal hole, and the side length of the hole is 20 - 30 mm. The dust cage filter mesh 303 is a plain woven stainless steel wire mesh.

[0059] The rotary dust cage assembly 3 is fixed on the other side wall panel of the air box through the roller shaft 27. Two third positioning rollers 35 and fourth positioning rollers 36 are arranged on the inner side of the rotary dust cage assembly 3 in contact with the inner wall panel 12 of the air box. The installation positions of the two third positioning rollers 35 and the fourth positioning rollers 36 are higher than the center horizontal line of the rotary dust cage assembly 3 to support it upward and limit left and right shaking. The rotary dust cage assembly 3 rotates along the rotation of the roller shaft 27.

[0060] The air flow partition roller assembly 7 is a three-roller structure, as Figure 15As shown, it includes two end face sealing plates 701, a free gravity roller 703, a first dust cage contact roller 702 and a second dust cage contact roller 704, wherein the first dust cage contact roller 702 and the second dust cage contact roller 704 are metal rubber-coated rollers, and the free gravity roller 703 is a metal roller. The lengths of the three rollers are equal and are all greater than the width of the perforated area of ​​the circular skeleton hole surface 302, so as to achieve the sealing effect in the length direction of the airflow blocking roller assembly 7. The spacing between the two end face sealing plates 701 and the end faces of the three rollers is 0.5 mm, and a wear-resistant felt pad is provided to ensure the sealing. At the same time, the free gravity roller 703, the first dust cage contact roller 702 and the second dust cage contact roller 704 can rotate freely. The lower edges of the two end face sealing plates 701 are spaced 1 mm from the inner surface of the circular skeleton hole surface 302 of the rotating dust cage assembly 3, and the end face sealing of the airflow blocking roller assembly 7 is achieved through the two end face sealing plates 701. When the dust cage rotates, the first dust cage contact roller 702 and the second dust cage contact roller 704 are acted on by the friction force in the same direction to move in the same direction, and simultaneously act on the free gravity roller 703 in the same rotation direction to make it rotate. During this process, the airflow blocking roller assembly 7 will reciprocate within a certain range around the dust cage. The present invention realizes the airflow blocking effect of the dust cage area between the first dust cage contact roller 702 and the second dust cage contact roller 704 by arranging two first sealing strips 22 and second bolts 23 at both ends of the outer side of the dust cage within the rolling range of the airflow blocking roller assembly 7.

[0061] The first sealing strip 22 and the third sealing strip 25 are respectively installed on the horizontal partition 19 in the wind box. The first sealing strip 22 is fixed by the third bolt 24, and the third sealing strip 25 is fixed by the second bolt 23.

[0062] The negative pressure chamber 1 and the constant pressure chamber 2 of the integrated bellows are spatially separated by an arc partition 14 and a horizontal partition 19, and the middle part of the horizontal partition 19 is hollowed out.

[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An integrated energy-saving bellows system for a condensing spinning frame, characterized in that: A rotary dust cage assembly (3) is arranged in the negative pressure bin (1), the air suction end of the negative pressure fan (10) is mounted on the inner wall plate (12) of the wind box, and the end face of the negative pressure fan (10) is completely located on the inner side of the rotary dust cage assembly (3), and a constant pressure bin (2) partially connected to the negative pressure bin (1) is arranged below the negative pressure bin (1). When the rotary dust cage assembly (3) partially extends into the constant pressure bin (2) in the circumferential direction, the corresponding structure separates the negative pressure bin (1) from the constant pressure bin (2), and the air adsorbed on the surface of the rotary dust cage assembly (3) is The fiber layer is peeled off and sucked away; the concentrated spinning negative pressure air duct (5) is connected to the negative pressure bin (1) through the bent pipe (4); the cotton suction air duct (6) is connected to the negative pressure bin (1) through the air flow proportional valve (17); a first pressure sensor (15) is provided on the concentrated spinning negative pressure air duct (5); and a second pressure sensor (16) is provided on the cotton suction air duct (6); the air flow proportional valve (17) is fully opened, and the operation of the negative pressure fan (10) is controlled based on the first pressure sensor (15) on the concentrated spinning negative pressure air duct (5). The operating frequency is adjusted so that the negative pressure in the gathering spinning air duct reaches the upper pressure limit set by the first pressure sensor (15), and then the second pressure sensor (16) on the cotton suction air duct (6) is used as a reference to adjust the air flow distribution between the gathering spinning negative pressure air duct (5) and the cotton suction air duct (6) through the air flow proportional valve (17) until the upper limit set by the second pressure sensor (16) is reached. At this time, the operating frequency of the negative pressure fan (10) and the air flow proportional valve (17) are slowly adjusted so that the pressure and suction pressure in the gathering spinning negative pressure air duct (5) are equal. The pressure of the cotton air duct (6) reaches the set pressure upper limit. At this time, the flow distribution of the airflow proportional valve (17) to the concentrated spinning negative pressure air duct (5) and the cotton suction air duct (6) remains unchanged when the spinning machine is working normally. When the surface of the rotating dust cage component (3) adsorbs fibers, the negative pressure of the airflow decreases. When the reading of the first pressure sensor (15) of the concentrated spinning negative pressure air duct (5) reaches the set lower limit, the bellows cleaning process starts to run. When a bellows cleaning process is completed, the bellows negative pressure rises back to between the set upper and lower limits. The rotary dust cage assembly (3) comprises an end face (301), a frame hole face (302) and a dust cage filter mesh (303); the frame hole face (302) is fixed to the end face (301) by a first bolt (304); the dust cage filter mesh (303) is wrapped around the outside of the circular frame hole face (302); a groove is provided in the middle of the inner side of the frame hole face (302); the airflow blocking roller assembly (7) runs in the groove; and the axial position of the airflow blocking roller assembly (7) is controlled by the groove; The airflow blocking roller assembly (7) is a three-roller structure, comprising two end face sealing plates (701), a free gravity roller (703), a first dust cage contact roller (702) and a second dust cage contact roller (704); When the dust cage rotates, the first dust cage contact roller (702) and the second dust cage contact roller (704) are acted upon by friction forces in the same direction and move in the same direction, and simultaneously act on the free gravity roller (703) in the same rotation direction, causing it to rotate. During this process, the airflow interruption roller assembly (7) will roll back and forth within a certain range in the circumference of the dust cage. By arranging two first sealing strips (22) and second bolts (23) at both ends of the outer side of the dust cage within the rolling range of the airflow blocking roller assembly (7), the airflow blocking function between the first dust cage contact roller (702) and the second dust cage contact roller (704) and the dust cage area therebetween is achieved.

2. The integrated energy-saving bellows system for the condensing spinning frame according to claim 1, characterized in that: The bellows cleaning process of the integrated energy-saving bellows system of the compact spinning spinning machine is an intermittent mode, that is, the cleaning and external delivery of the fibers sucked back by the bellows are intermittent. When a certain amount of fibers are adsorbed on the surface of the rotating dust cage component (3), so that the reading of the first pressure sensor (15) of the compact spinning negative pressure air duct (5) reaches the set lower limit, the bellows cleaning process starts to run. At this time, the first dust cage driving roller (8), the second dust cage driving roller (9) and the suction nozzle (20) start to work synchronously. The first dust cage driving roller (8) and the second dust cage driving roller (9) are connected by a synchronous belt and driven by a first motor (11). While driving the rotating dust cage component (3) to rotate, the first dust cage driving roller (8) and the second dust cage driving roller (9) also start the vertical support function of the rotating dust cage component (3); when the rotating dust cage component (3) rotates, the surface The dust cage filter mesh (303) with fibers adsorbed on the surface enters the constant pressure bin (2) from the negative pressure bin (1) as the rotary dust cage assembly (3) rotates. At this time, the negative pressure airflow cannot be transmitted to the constant pressure bin (2) due to the action of the airflow blocking roller assembly (7) and the first sealing strip (22) and the third sealing strip (25). The fibers on the surface of the rotary dust cage assembly (3) in the constant pressure bin (2) are no longer adsorbed by the negative pressure and are sucked away by the negative pressure of the suction nozzle (20) and recovered to the raw material room through the workshop negative pressure pipeline. When the suction nozzle (20) is working, in order to stabilize the air pressure of the constant pressure bin (2), a one-way self-closing door (26) is provided on the side wall of the constant pressure bin (2) to replenish air for the constant pressure bin (2). When the rotary dust cage assembly (3) rotates one circle, a cleaning cycle is completed, and the first dust cage driving roller (8) and the suction nozzle (20) stop working synchronously.

3. The integrated energy-saving bellows system for the condensing spinning frame according to claim 1, characterized in that: The width of the dust cage filter mesh (303) is greater than the width of the circular skeleton hole surface (302); the hole pattern of the circular skeleton hole surface (302) is a regular hexagonal hole with a hole side length of 20-30 mm; the dust cage filter mesh (303) is a plain stainless steel wire mesh.

4. The integrated energy-saving bellows system for the condensing spinning frame according to claim 1, characterized in that: The rotary dust cage assembly (3) is fixed to the inner wall plate (12) of the bellows via a rotary support bearing (18), and the rotary support bearing (18) plays a dual role of fixing and sealing the rotary dust cage assembly (3); the rotary support bearing (18) comprises: a bearing inner ring (181), a bearing outer ring (182), a ball (183), a fourth sealing strip (184), a fixing bolt (185) and an annular sealing clip (186); the rotary dust cage assembly (3) rotates along the rotation trajectory of the rotary support bearing (18), and the rotary support bearing (18) is used to achieve sealing between the rotary dust cage assembly (3) and the inner wall plate (12) of the bellows, so that airflow inside and outside the dust cage can only flow through the dust cage filter mesh (303).

5. The integrated energy-saving bellows system for the condensing spinning frame according to claim 2, characterized in that: The first dust cage contact roller (702) and the second dust cage contact roller (704) are metal rubber-coated rollers, and the free gravity roller (703) is a metal roller; the lengths of the three rollers are equal and are all greater than the width of the holed area of ​​the circular skeleton hole surface (302) to achieve a sealing effect in the length direction of the airflow blocking roller assembly (7); the spacing between the two end face sealing plates (701) and the end faces of the three rollers is 0.5 mm, and wear-resistant felt pads are provided to ensure sealing. At the same time, the free gravity roller (703), the first dust cage contact roller (702) and the second dust cage contact roller (704) can rotate freely; the distance between the lower edges of the two end face sealing plates (701) and the inner surface of the circular skeleton hole surface (302) of the rotating dust cage assembly (3) is 1 mm, and the end face sealing of the airflow blocking roller assembly (7) is achieved by the two end face sealing plates (701).

6. The integrated energy-saving bellows system for the condensing spinning frame according to claim 5, characterized in that: The first sealing strip (22) and the third sealing strip (25) are respectively mounted on the horizontal partition (19) in the wind box; the first sealing strip (22) is fixed by a third bolt (24) and the third sealing strip (25) is fixed by a second bolt (23).

7. The integrated energy-saving bellows system for the condensing spinning frame according to claim 1, characterized in that: The negative pressure chamber (1) and the constant pressure chamber (2) of the integrated bellows are spatially separated by an arc-shaped partition (14) and a horizontal partition (19), and the middle portion of the horizontal partition (19) is hollowed out.

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